Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #ifndef V8_AST_H_ |
| 29 | #define V8_AST_H_ |
| 30 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 31 | #include "v8.h" |
| 32 | |
| 33 | #include "assembler.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 34 | #include "factory.h" |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 35 | #include "isolate.h" |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 36 | #include "jsregexp.h" |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 37 | #include "list-inl.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 38 | #include "runtime.h" |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 39 | #include "small-pointer-list.h" |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 40 | #include "smart-array-pointer.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 41 | #include "token.h" |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 42 | #include "utils.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 43 | #include "variables.h" |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 44 | #include "interface.h" |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 45 | #include "zone-inl.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 46 | |
| 47 | namespace v8 { |
| 48 | namespace internal { |
| 49 | |
| 50 | // The abstract syntax tree is an intermediate, light-weight |
| 51 | // representation of the parsed JavaScript code suitable for |
| 52 | // compilation to native code. |
| 53 | |
| 54 | // Nodes are allocated in a separate zone, which allows faster |
| 55 | // allocation and constant-time deallocation of the entire syntax |
| 56 | // tree. |
| 57 | |
| 58 | |
| 59 | // ---------------------------------------------------------------------------- |
| 60 | // Nodes of the abstract syntax tree. Only concrete classes are |
| 61 | // enumerated here. |
| 62 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 63 | #define DECLARATION_NODE_LIST(V) \ |
| 64 | V(VariableDeclaration) \ |
| 65 | V(FunctionDeclaration) \ |
| 66 | V(ModuleDeclaration) \ |
| 67 | V(ImportDeclaration) \ |
| 68 | V(ExportDeclaration) \ |
| 69 | |
| 70 | #define MODULE_NODE_LIST(V) \ |
| 71 | V(ModuleLiteral) \ |
| 72 | V(ModuleVariable) \ |
| 73 | V(ModulePath) \ |
| 74 | V(ModuleUrl) |
| 75 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 76 | #define STATEMENT_NODE_LIST(V) \ |
| 77 | V(Block) \ |
| 78 | V(ExpressionStatement) \ |
| 79 | V(EmptyStatement) \ |
| 80 | V(IfStatement) \ |
| 81 | V(ContinueStatement) \ |
| 82 | V(BreakStatement) \ |
| 83 | V(ReturnStatement) \ |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 84 | V(WithStatement) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 85 | V(SwitchStatement) \ |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 86 | V(DoWhileStatement) \ |
| 87 | V(WhileStatement) \ |
| 88 | V(ForStatement) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 89 | V(ForInStatement) \ |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 90 | V(TryCatchStatement) \ |
| 91 | V(TryFinallyStatement) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 92 | V(DebuggerStatement) |
| 93 | |
| 94 | #define EXPRESSION_NODE_LIST(V) \ |
| 95 | V(FunctionLiteral) \ |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 96 | V(SharedFunctionInfoLiteral) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 97 | V(Conditional) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 98 | V(VariableProxy) \ |
| 99 | V(Literal) \ |
| 100 | V(RegExpLiteral) \ |
| 101 | V(ObjectLiteral) \ |
| 102 | V(ArrayLiteral) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 103 | V(Assignment) \ |
| 104 | V(Throw) \ |
| 105 | V(Property) \ |
| 106 | V(Call) \ |
| 107 | V(CallNew) \ |
| 108 | V(CallRuntime) \ |
| 109 | V(UnaryOperation) \ |
| 110 | V(CountOperation) \ |
| 111 | V(BinaryOperation) \ |
| 112 | V(CompareOperation) \ |
| 113 | V(ThisFunction) |
| 114 | |
| 115 | #define AST_NODE_LIST(V) \ |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 116 | DECLARATION_NODE_LIST(V) \ |
| 117 | MODULE_NODE_LIST(V) \ |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 118 | STATEMENT_NODE_LIST(V) \ |
| 119 | EXPRESSION_NODE_LIST(V) |
| 120 | |
| 121 | // Forward declarations |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 122 | class AstConstructionVisitor; |
| 123 | template<class> class AstNodeFactory; |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 124 | class AstVisitor; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 125 | class Declaration; |
| 126 | class Module; |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 127 | class BreakableStatement; |
| 128 | class Expression; |
| 129 | class IterationStatement; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 130 | class MaterializedLiteral; |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 131 | class Statement; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 132 | class TargetCollector; |
| 133 | class TypeFeedbackOracle; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 134 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 135 | class RegExpAlternative; |
| 136 | class RegExpAssertion; |
| 137 | class RegExpAtom; |
| 138 | class RegExpBackReference; |
| 139 | class RegExpCapture; |
| 140 | class RegExpCharacterClass; |
| 141 | class RegExpCompiler; |
| 142 | class RegExpDisjunction; |
| 143 | class RegExpEmpty; |
| 144 | class RegExpLookahead; |
| 145 | class RegExpQuantifier; |
| 146 | class RegExpText; |
| 147 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 148 | #define DEF_FORWARD_DECLARATION(type) class type; |
| 149 | AST_NODE_LIST(DEF_FORWARD_DECLARATION) |
| 150 | #undef DEF_FORWARD_DECLARATION |
| 151 | |
| 152 | |
| 153 | // Typedef only introduced to avoid unreadable code. |
| 154 | // Please do appreciate the required space in "> >". |
| 155 | typedef ZoneList<Handle<String> > ZoneStringList; |
| 156 | typedef ZoneList<Handle<Object> > ZoneObjectList; |
| 157 | |
| 158 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 159 | #define DECLARE_NODE_TYPE(type) \ |
| 160 | virtual void Accept(AstVisitor* v); \ |
| 161 | virtual AstNode::Type node_type() const { return AstNode::k##type; } |
| 162 | |
| 163 | |
| 164 | enum AstPropertiesFlag { |
| 165 | kDontInline, |
| 166 | kDontOptimize, |
| 167 | kDontSelfOptimize, |
| 168 | kDontSoftInline |
| 169 | }; |
| 170 | |
| 171 | |
| 172 | class AstProperties BASE_EMBEDDED { |
| 173 | public: |
| 174 | class Flags : public EnumSet<AstPropertiesFlag, int> {}; |
| 175 | |
| 176 | AstProperties() : node_count_(0) { } |
| 177 | |
| 178 | Flags* flags() { return &flags_; } |
| 179 | int node_count() { return node_count_; } |
| 180 | void add_node_count(int count) { node_count_ += count; } |
| 181 | |
| 182 | private: |
| 183 | Flags flags_; |
| 184 | int node_count_; |
| 185 | }; |
| 186 | |
| 187 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 188 | class AstNode: public ZoneObject { |
| 189 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 190 | #define DECLARE_TYPE_ENUM(type) k##type, |
| 191 | enum Type { |
| 192 | AST_NODE_LIST(DECLARE_TYPE_ENUM) |
| 193 | kInvalid = -1 |
| 194 | }; |
| 195 | #undef DECLARE_TYPE_ENUM |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 196 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 197 | static const int kNoNumber = -1; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 198 | static const int kFunctionEntryId = 2; // Using 0 could disguise errors. |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 199 | // This AST id identifies the point after the declarations have been |
| 200 | // visited. We need it to capture the environment effects of declarations |
| 201 | // that emit code (function declarations). |
| 202 | static const int kDeclarationsId = 3; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 203 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 204 | void* operator new(size_t size, Zone* zone) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 205 | return zone->New(static_cast<int>(size)); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 206 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 207 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 208 | AstNode() { } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 209 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 210 | virtual ~AstNode() { } |
| 211 | |
| 212 | virtual void Accept(AstVisitor* v) = 0; |
| 213 | virtual Type node_type() const { return kInvalid; } |
| 214 | |
| 215 | // Type testing & conversion functions overridden by concrete subclasses. |
| 216 | #define DECLARE_NODE_FUNCTIONS(type) \ |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 217 | bool Is##type() { return node_type() == AstNode::k##type; } \ |
| 218 | type* As##type() { return Is##type() ? reinterpret_cast<type*>(this) : NULL; } |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 219 | AST_NODE_LIST(DECLARE_NODE_FUNCTIONS) |
| 220 | #undef DECLARE_NODE_FUNCTIONS |
| 221 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 222 | virtual Declaration* AsDeclaration() { return NULL; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 223 | virtual Statement* AsStatement() { return NULL; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 224 | virtual Expression* AsExpression() { return NULL; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 225 | virtual TargetCollector* AsTargetCollector() { return NULL; } |
| 226 | virtual BreakableStatement* AsBreakableStatement() { return NULL; } |
| 227 | virtual IterationStatement* AsIterationStatement() { return NULL; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 228 | virtual MaterializedLiteral* AsMaterializedLiteral() { return NULL; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 229 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 230 | protected: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 231 | static int GetNextId(Isolate* isolate) { |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 232 | return ReserveIdRange(isolate, 1); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 233 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 234 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 235 | static int ReserveIdRange(Isolate* isolate, int n) { |
| 236 | int tmp = isolate->ast_node_id(); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 237 | isolate->set_ast_node_id(tmp + n); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 238 | return tmp; |
| 239 | } |
| 240 | |
| 241 | private: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 242 | // Hidden to prevent accidental usage. It would have to load the |
| 243 | // current zone from the TLS. |
| 244 | void* operator new(size_t size); |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 245 | |
| 246 | friend class CaseClause; // Generates AST IDs. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 247 | }; |
| 248 | |
| 249 | |
| 250 | class Statement: public AstNode { |
| 251 | public: |
| 252 | Statement() : statement_pos_(RelocInfo::kNoPosition) {} |
| 253 | |
| 254 | virtual Statement* AsStatement() { return this; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 255 | |
| 256 | bool IsEmpty() { return AsEmptyStatement() != NULL; } |
| 257 | |
| 258 | void set_statement_pos(int statement_pos) { statement_pos_ = statement_pos; } |
| 259 | int statement_pos() const { return statement_pos_; } |
| 260 | |
| 261 | private: |
| 262 | int statement_pos_; |
| 263 | }; |
| 264 | |
| 265 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 266 | class SmallMapList { |
| 267 | public: |
| 268 | SmallMapList() {} |
| 269 | explicit SmallMapList(int capacity) : list_(capacity) {} |
| 270 | |
| 271 | void Reserve(int capacity) { list_.Reserve(capacity); } |
| 272 | void Clear() { list_.Clear(); } |
| 273 | |
| 274 | bool is_empty() const { return list_.is_empty(); } |
| 275 | int length() const { return list_.length(); } |
| 276 | |
| 277 | void Add(Handle<Map> handle) { |
| 278 | list_.Add(handle.location()); |
| 279 | } |
| 280 | |
| 281 | Handle<Map> at(int i) const { |
| 282 | return Handle<Map>(list_.at(i)); |
| 283 | } |
| 284 | |
| 285 | Handle<Map> first() const { return at(0); } |
| 286 | Handle<Map> last() const { return at(length() - 1); } |
| 287 | |
| 288 | private: |
| 289 | // The list stores pointers to Map*, that is Map**, so it's GC safe. |
| 290 | SmallPointerList<Map*> list_; |
| 291 | |
| 292 | DISALLOW_COPY_AND_ASSIGN(SmallMapList); |
| 293 | }; |
| 294 | |
| 295 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 296 | class Expression: public AstNode { |
| 297 | public: |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 298 | enum Context { |
| 299 | // Not assigned a context yet, or else will not be visited during |
| 300 | // code generation. |
| 301 | kUninitialized, |
| 302 | // Evaluated for its side effects. |
| 303 | kEffect, |
| 304 | // Evaluated for its value (and side effects). |
| 305 | kValue, |
| 306 | // Evaluated for control flow (and side effects). |
| 307 | kTest |
| 308 | }; |
| 309 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 310 | virtual int position() const { |
| 311 | UNREACHABLE(); |
| 312 | return 0; |
| 313 | } |
Leon Clarke | 4515c47 | 2010-02-03 11:58:03 +0000 | [diff] [blame] | 314 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 315 | virtual Expression* AsExpression() { return this; } |
| 316 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 317 | virtual bool IsValidLeftHandSide() { return false; } |
| 318 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 319 | // Helpers for ToBoolean conversion. |
| 320 | virtual bool ToBooleanIsTrue() { return false; } |
| 321 | virtual bool ToBooleanIsFalse() { return false; } |
| 322 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 323 | // Symbols that cannot be parsed as array indices are considered property |
| 324 | // names. We do not treat symbols that can be array indexes as property |
| 325 | // names because [] for string objects is handled only by keyed ICs. |
| 326 | virtual bool IsPropertyName() { return false; } |
| 327 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 328 | // True iff the result can be safely overwritten (to avoid allocation). |
| 329 | // False for operations that can return one of their operands. |
| 330 | virtual bool ResultOverwriteAllowed() { return false; } |
| 331 | |
| 332 | // True iff the expression is a literal represented as a smi. |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 333 | bool IsSmiLiteral(); |
| 334 | |
| 335 | // True iff the expression is a string literal. |
| 336 | bool IsStringLiteral(); |
| 337 | |
| 338 | // True iff the expression is the null literal. |
| 339 | bool IsNullLiteral(); |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 340 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 341 | // Type feedback information for assignments and properties. |
| 342 | virtual bool IsMonomorphic() { |
| 343 | UNREACHABLE(); |
| 344 | return false; |
| 345 | } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 346 | virtual SmallMapList* GetReceiverTypes() { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 347 | UNREACHABLE(); |
| 348 | return NULL; |
| 349 | } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 350 | Handle<Map> GetMonomorphicReceiverType() { |
| 351 | ASSERT(IsMonomorphic()); |
| 352 | SmallMapList* types = GetReceiverTypes(); |
| 353 | ASSERT(types != NULL && types->length() == 1); |
| 354 | return types->at(0); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 355 | } |
| 356 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 357 | unsigned id() const { return id_; } |
| 358 | unsigned test_id() const { return test_id_; } |
Andrei Popescu | 402d937 | 2010-02-26 13:31:12 +0000 | [diff] [blame] | 359 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 360 | protected: |
| 361 | explicit Expression(Isolate* isolate) |
| 362 | : id_(GetNextId(isolate)), |
| 363 | test_id_(GetNextId(isolate)) {} |
| 364 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 365 | private: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 366 | int id_; |
| 367 | int test_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 368 | }; |
| 369 | |
| 370 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 371 | class BreakableStatement: public Statement { |
| 372 | public: |
| 373 | enum Type { |
| 374 | TARGET_FOR_ANONYMOUS, |
| 375 | TARGET_FOR_NAMED_ONLY |
| 376 | }; |
| 377 | |
| 378 | // The labels associated with this statement. May be NULL; |
| 379 | // if it is != NULL, guaranteed to contain at least one entry. |
| 380 | ZoneStringList* labels() const { return labels_; } |
| 381 | |
| 382 | // Type testing & conversion. |
| 383 | virtual BreakableStatement* AsBreakableStatement() { return this; } |
| 384 | |
| 385 | // Code generation |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 386 | Label* break_target() { return &break_target_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 387 | |
| 388 | // Testers. |
| 389 | bool is_target_for_anonymous() const { return type_ == TARGET_FOR_ANONYMOUS; } |
| 390 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 391 | // Bailout support. |
| 392 | int EntryId() const { return entry_id_; } |
| 393 | int ExitId() const { return exit_id_; } |
| 394 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 395 | protected: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 396 | BreakableStatement(Isolate* isolate, ZoneStringList* labels, Type type) |
| 397 | : labels_(labels), |
| 398 | type_(type), |
| 399 | entry_id_(GetNextId(isolate)), |
| 400 | exit_id_(GetNextId(isolate)) { |
| 401 | ASSERT(labels == NULL || labels->length() > 0); |
| 402 | } |
| 403 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 404 | |
| 405 | private: |
| 406 | ZoneStringList* labels_; |
| 407 | Type type_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 408 | Label break_target_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 409 | int entry_id_; |
| 410 | int exit_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 411 | }; |
| 412 | |
| 413 | |
| 414 | class Block: public BreakableStatement { |
| 415 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 416 | DECLARE_NODE_TYPE(Block) |
| 417 | |
| 418 | void AddStatement(Statement* statement) { statements_.Add(statement); } |
| 419 | |
| 420 | ZoneList<Statement*>* statements() { return &statements_; } |
| 421 | bool is_initializer_block() const { return is_initializer_block_; } |
| 422 | |
| 423 | Scope* block_scope() const { return block_scope_; } |
| 424 | void set_block_scope(Scope* block_scope) { block_scope_ = block_scope; } |
| 425 | |
| 426 | protected: |
| 427 | template<class> friend class AstNodeFactory; |
| 428 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 429 | Block(Isolate* isolate, |
| 430 | ZoneStringList* labels, |
| 431 | int capacity, |
| 432 | bool is_initializer_block) |
| 433 | : BreakableStatement(isolate, labels, TARGET_FOR_NAMED_ONLY), |
| 434 | statements_(capacity), |
| 435 | is_initializer_block_(is_initializer_block), |
| 436 | block_scope_(NULL) { |
| 437 | } |
| 438 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 439 | private: |
| 440 | ZoneList<Statement*> statements_; |
| 441 | bool is_initializer_block_; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 442 | Scope* block_scope_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 443 | }; |
| 444 | |
| 445 | |
| 446 | class Declaration: public AstNode { |
| 447 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 448 | VariableProxy* proxy() const { return proxy_; } |
| 449 | VariableMode mode() const { return mode_; } |
| 450 | Scope* scope() const { return scope_; } |
| 451 | virtual InitializationFlag initialization() const = 0; |
| 452 | virtual bool IsInlineable() const; |
| 453 | |
| 454 | virtual Declaration* AsDeclaration() { return this; } |
| 455 | |
| 456 | protected: |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 457 | Declaration(VariableProxy* proxy, |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 458 | VariableMode mode, |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 459 | Scope* scope) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 460 | : proxy_(proxy), |
| 461 | mode_(mode), |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 462 | scope_(scope) { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 463 | ASSERT(mode == VAR || |
| 464 | mode == CONST || |
| 465 | mode == CONST_HARMONY || |
| 466 | mode == LET); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 467 | } |
| 468 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 469 | private: |
| 470 | VariableProxy* proxy_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 471 | VariableMode mode_; |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 472 | |
| 473 | // Nested scope from which the declaration originated. |
| 474 | Scope* scope_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 475 | }; |
| 476 | |
| 477 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 478 | class VariableDeclaration: public Declaration { |
| 479 | public: |
| 480 | DECLARE_NODE_TYPE(VariableDeclaration) |
| 481 | |
| 482 | virtual InitializationFlag initialization() const { |
| 483 | return mode() == VAR ? kCreatedInitialized : kNeedsInitialization; |
| 484 | } |
| 485 | |
| 486 | protected: |
| 487 | template<class> friend class AstNodeFactory; |
| 488 | |
| 489 | VariableDeclaration(VariableProxy* proxy, |
| 490 | VariableMode mode, |
| 491 | Scope* scope) |
| 492 | : Declaration(proxy, mode, scope) { |
| 493 | } |
| 494 | }; |
| 495 | |
| 496 | |
| 497 | class FunctionDeclaration: public Declaration { |
| 498 | public: |
| 499 | DECLARE_NODE_TYPE(FunctionDeclaration) |
| 500 | |
| 501 | FunctionLiteral* fun() const { return fun_; } |
| 502 | virtual InitializationFlag initialization() const { |
| 503 | return kCreatedInitialized; |
| 504 | } |
| 505 | virtual bool IsInlineable() const; |
| 506 | |
| 507 | protected: |
| 508 | template<class> friend class AstNodeFactory; |
| 509 | |
| 510 | FunctionDeclaration(VariableProxy* proxy, |
| 511 | VariableMode mode, |
| 512 | FunctionLiteral* fun, |
| 513 | Scope* scope) |
| 514 | : Declaration(proxy, mode, scope), |
| 515 | fun_(fun) { |
| 516 | // At the moment there are no "const functions" in JavaScript... |
| 517 | ASSERT(mode == VAR || mode == LET); |
| 518 | ASSERT(fun != NULL); |
| 519 | } |
| 520 | |
| 521 | private: |
| 522 | FunctionLiteral* fun_; |
| 523 | }; |
| 524 | |
| 525 | |
| 526 | class ModuleDeclaration: public Declaration { |
| 527 | public: |
| 528 | DECLARE_NODE_TYPE(ModuleDeclaration) |
| 529 | |
| 530 | Module* module() const { return module_; } |
| 531 | virtual InitializationFlag initialization() const { |
| 532 | return kCreatedInitialized; |
| 533 | } |
| 534 | |
| 535 | protected: |
| 536 | template<class> friend class AstNodeFactory; |
| 537 | |
| 538 | ModuleDeclaration(VariableProxy* proxy, |
| 539 | Module* module, |
| 540 | Scope* scope) |
| 541 | : Declaration(proxy, LET, scope), |
| 542 | module_(module) { |
| 543 | } |
| 544 | |
| 545 | private: |
| 546 | Module* module_; |
| 547 | }; |
| 548 | |
| 549 | |
| 550 | class ImportDeclaration: public Declaration { |
| 551 | public: |
| 552 | DECLARE_NODE_TYPE(ImportDeclaration) |
| 553 | |
| 554 | Module* module() const { return module_; } |
| 555 | virtual InitializationFlag initialization() const { |
| 556 | return kCreatedInitialized; |
| 557 | } |
| 558 | |
| 559 | protected: |
| 560 | template<class> friend class AstNodeFactory; |
| 561 | |
| 562 | ImportDeclaration(VariableProxy* proxy, |
| 563 | Module* module, |
| 564 | Scope* scope) |
| 565 | : Declaration(proxy, LET, scope), |
| 566 | module_(module) { |
| 567 | } |
| 568 | |
| 569 | private: |
| 570 | Module* module_; |
| 571 | }; |
| 572 | |
| 573 | |
| 574 | class ExportDeclaration: public Declaration { |
| 575 | public: |
| 576 | DECLARE_NODE_TYPE(ExportDeclaration) |
| 577 | |
| 578 | virtual InitializationFlag initialization() const { |
| 579 | return kCreatedInitialized; |
| 580 | } |
| 581 | |
| 582 | protected: |
| 583 | template<class> friend class AstNodeFactory; |
| 584 | |
| 585 | ExportDeclaration(VariableProxy* proxy, |
| 586 | Scope* scope) |
| 587 | : Declaration(proxy, LET, scope) { |
| 588 | } |
| 589 | }; |
| 590 | |
| 591 | |
| 592 | class Module: public AstNode { |
| 593 | public: |
| 594 | Interface* interface() const { return interface_; } |
| 595 | |
| 596 | protected: |
| 597 | Module() : interface_(Interface::NewModule()) {} |
| 598 | explicit Module(Interface* interface) : interface_(interface) {} |
| 599 | |
| 600 | private: |
| 601 | Interface* interface_; |
| 602 | }; |
| 603 | |
| 604 | |
| 605 | class ModuleLiteral: public Module { |
| 606 | public: |
| 607 | DECLARE_NODE_TYPE(ModuleLiteral) |
| 608 | |
| 609 | Block* body() const { return body_; } |
| 610 | |
| 611 | protected: |
| 612 | template<class> friend class AstNodeFactory; |
| 613 | |
| 614 | ModuleLiteral(Block* body, Interface* interface) |
| 615 | : Module(interface), |
| 616 | body_(body) { |
| 617 | } |
| 618 | |
| 619 | private: |
| 620 | Block* body_; |
| 621 | }; |
| 622 | |
| 623 | |
| 624 | class ModuleVariable: public Module { |
| 625 | public: |
| 626 | DECLARE_NODE_TYPE(ModuleVariable) |
| 627 | |
| 628 | VariableProxy* proxy() const { return proxy_; } |
| 629 | |
| 630 | protected: |
| 631 | template<class> friend class AstNodeFactory; |
| 632 | |
| 633 | inline explicit ModuleVariable(VariableProxy* proxy); |
| 634 | |
| 635 | private: |
| 636 | VariableProxy* proxy_; |
| 637 | }; |
| 638 | |
| 639 | |
| 640 | class ModulePath: public Module { |
| 641 | public: |
| 642 | DECLARE_NODE_TYPE(ModulePath) |
| 643 | |
| 644 | Module* module() const { return module_; } |
| 645 | Handle<String> name() const { return name_; } |
| 646 | |
| 647 | protected: |
| 648 | template<class> friend class AstNodeFactory; |
| 649 | |
| 650 | ModulePath(Module* module, Handle<String> name) |
| 651 | : module_(module), |
| 652 | name_(name) { |
| 653 | } |
| 654 | |
| 655 | private: |
| 656 | Module* module_; |
| 657 | Handle<String> name_; |
| 658 | }; |
| 659 | |
| 660 | |
| 661 | class ModuleUrl: public Module { |
| 662 | public: |
| 663 | DECLARE_NODE_TYPE(ModuleUrl) |
| 664 | |
| 665 | Handle<String> url() const { return url_; } |
| 666 | |
| 667 | protected: |
| 668 | template<class> friend class AstNodeFactory; |
| 669 | |
| 670 | explicit ModuleUrl(Handle<String> url) : url_(url) { |
| 671 | } |
| 672 | |
| 673 | private: |
| 674 | Handle<String> url_; |
| 675 | }; |
| 676 | |
| 677 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 678 | class IterationStatement: public BreakableStatement { |
| 679 | public: |
| 680 | // Type testing & conversion. |
| 681 | virtual IterationStatement* AsIterationStatement() { return this; } |
| 682 | |
| 683 | Statement* body() const { return body_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 684 | |
| 685 | // Bailout support. |
| 686 | int OsrEntryId() const { return osr_entry_id_; } |
| 687 | virtual int ContinueId() const = 0; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 688 | virtual int StackCheckId() const = 0; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 689 | |
| 690 | // Code generation |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 691 | Label* continue_target() { return &continue_target_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 692 | |
| 693 | protected: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 694 | IterationStatement(Isolate* isolate, ZoneStringList* labels) |
| 695 | : BreakableStatement(isolate, labels, TARGET_FOR_ANONYMOUS), |
| 696 | body_(NULL), |
| 697 | osr_entry_id_(GetNextId(isolate)) { |
| 698 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 699 | |
| 700 | void Initialize(Statement* body) { |
| 701 | body_ = body; |
| 702 | } |
| 703 | |
| 704 | private: |
| 705 | Statement* body_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 706 | Label continue_target_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 707 | int osr_entry_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 708 | }; |
| 709 | |
| 710 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 711 | class DoWhileStatement: public IterationStatement { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 712 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 713 | DECLARE_NODE_TYPE(DoWhileStatement) |
| 714 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 715 | void Initialize(Expression* cond, Statement* body) { |
| 716 | IterationStatement::Initialize(body); |
| 717 | cond_ = cond; |
| 718 | } |
| 719 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 720 | Expression* cond() const { return cond_; } |
| 721 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 722 | // Position where condition expression starts. We need it to make |
| 723 | // the loop's condition a breakable location. |
| 724 | int condition_position() { return condition_position_; } |
| 725 | void set_condition_position(int pos) { condition_position_ = pos; } |
| 726 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 727 | // Bailout support. |
| 728 | virtual int ContinueId() const { return continue_id_; } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 729 | virtual int StackCheckId() const { return back_edge_id_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 730 | int BackEdgeId() const { return back_edge_id_; } |
| 731 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 732 | protected: |
| 733 | template<class> friend class AstNodeFactory; |
| 734 | |
| 735 | DoWhileStatement(Isolate* isolate, ZoneStringList* labels) |
| 736 | : IterationStatement(isolate, labels), |
| 737 | cond_(NULL), |
| 738 | condition_position_(-1), |
| 739 | continue_id_(GetNextId(isolate)), |
| 740 | back_edge_id_(GetNextId(isolate)) { |
| 741 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 742 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 743 | private: |
| 744 | Expression* cond_; |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 745 | int condition_position_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 746 | int continue_id_; |
| 747 | int back_edge_id_; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 748 | }; |
| 749 | |
| 750 | |
| 751 | class WhileStatement: public IterationStatement { |
| 752 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 753 | DECLARE_NODE_TYPE(WhileStatement) |
| 754 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 755 | void Initialize(Expression* cond, Statement* body) { |
| 756 | IterationStatement::Initialize(body); |
| 757 | cond_ = cond; |
| 758 | } |
| 759 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 760 | Expression* cond() const { return cond_; } |
| 761 | bool may_have_function_literal() const { |
| 762 | return may_have_function_literal_; |
| 763 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 764 | void set_may_have_function_literal(bool value) { |
| 765 | may_have_function_literal_ = value; |
| 766 | } |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 767 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 768 | // Bailout support. |
| 769 | virtual int ContinueId() const { return EntryId(); } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 770 | virtual int StackCheckId() const { return body_id_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 771 | int BodyId() const { return body_id_; } |
| 772 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 773 | protected: |
| 774 | template<class> friend class AstNodeFactory; |
| 775 | |
| 776 | WhileStatement(Isolate* isolate, ZoneStringList* labels) |
| 777 | : IterationStatement(isolate, labels), |
| 778 | cond_(NULL), |
| 779 | may_have_function_literal_(true), |
| 780 | body_id_(GetNextId(isolate)) { |
| 781 | } |
| 782 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 783 | private: |
| 784 | Expression* cond_; |
| 785 | // True if there is a function literal subexpression in the condition. |
| 786 | bool may_have_function_literal_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 787 | int body_id_; |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 788 | }; |
| 789 | |
| 790 | |
| 791 | class ForStatement: public IterationStatement { |
| 792 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 793 | DECLARE_NODE_TYPE(ForStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 794 | |
| 795 | void Initialize(Statement* init, |
| 796 | Expression* cond, |
| 797 | Statement* next, |
| 798 | Statement* body) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 799 | IterationStatement::Initialize(body); |
| 800 | init_ = init; |
| 801 | cond_ = cond; |
| 802 | next_ = next; |
| 803 | } |
| 804 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 805 | Statement* init() const { return init_; } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 806 | Expression* cond() const { return cond_; } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 807 | Statement* next() const { return next_; } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 808 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 809 | bool may_have_function_literal() const { |
| 810 | return may_have_function_literal_; |
| 811 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 812 | void set_may_have_function_literal(bool value) { |
| 813 | may_have_function_literal_ = value; |
| 814 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 815 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 816 | // Bailout support. |
| 817 | virtual int ContinueId() const { return continue_id_; } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 818 | virtual int StackCheckId() const { return body_id_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 819 | int BodyId() const { return body_id_; } |
| 820 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 821 | bool is_fast_smi_loop() { return loop_variable_ != NULL; } |
| 822 | Variable* loop_variable() { return loop_variable_; } |
| 823 | void set_loop_variable(Variable* var) { loop_variable_ = var; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 824 | |
| 825 | protected: |
| 826 | template<class> friend class AstNodeFactory; |
| 827 | |
| 828 | ForStatement(Isolate* isolate, ZoneStringList* labels) |
| 829 | : IterationStatement(isolate, labels), |
| 830 | init_(NULL), |
| 831 | cond_(NULL), |
| 832 | next_(NULL), |
| 833 | may_have_function_literal_(true), |
| 834 | loop_variable_(NULL), |
| 835 | continue_id_(GetNextId(isolate)), |
| 836 | body_id_(GetNextId(isolate)) { |
| 837 | } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 838 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 839 | private: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 840 | Statement* init_; |
| 841 | Expression* cond_; |
| 842 | Statement* next_; |
| 843 | // True if there is a function literal subexpression in the condition. |
| 844 | bool may_have_function_literal_; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 845 | Variable* loop_variable_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 846 | int continue_id_; |
| 847 | int body_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 848 | }; |
| 849 | |
| 850 | |
| 851 | class ForInStatement: public IterationStatement { |
| 852 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 853 | DECLARE_NODE_TYPE(ForInStatement) |
| 854 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 855 | void Initialize(Expression* each, Expression* enumerable, Statement* body) { |
| 856 | IterationStatement::Initialize(body); |
| 857 | each_ = each; |
| 858 | enumerable_ = enumerable; |
| 859 | } |
| 860 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 861 | Expression* each() const { return each_; } |
| 862 | Expression* enumerable() const { return enumerable_; } |
| 863 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 864 | virtual int ContinueId() const { return EntryId(); } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 865 | virtual int StackCheckId() const { return body_id_; } |
| 866 | int BodyId() const { return body_id_; } |
| 867 | int PrepareId() const { return prepare_id_; } |
| 868 | |
| 869 | protected: |
| 870 | template<class> friend class AstNodeFactory; |
| 871 | |
| 872 | ForInStatement(Isolate* isolate, ZoneStringList* labels) |
| 873 | : IterationStatement(isolate, labels), |
| 874 | each_(NULL), |
| 875 | enumerable_(NULL), |
| 876 | body_id_(GetNextId(isolate)), |
| 877 | prepare_id_(GetNextId(isolate)) { |
| 878 | } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 879 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 880 | private: |
| 881 | Expression* each_; |
| 882 | Expression* enumerable_; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 883 | int body_id_; |
| 884 | int prepare_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 885 | }; |
| 886 | |
| 887 | |
| 888 | class ExpressionStatement: public Statement { |
| 889 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 890 | DECLARE_NODE_TYPE(ExpressionStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 891 | |
| 892 | void set_expression(Expression* e) { expression_ = e; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 893 | Expression* expression() const { return expression_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 894 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 895 | protected: |
| 896 | template<class> friend class AstNodeFactory; |
| 897 | |
| 898 | explicit ExpressionStatement(Expression* expression) |
| 899 | : expression_(expression) { } |
| 900 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 901 | private: |
| 902 | Expression* expression_; |
| 903 | }; |
| 904 | |
| 905 | |
| 906 | class ContinueStatement: public Statement { |
| 907 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 908 | DECLARE_NODE_TYPE(ContinueStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 909 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 910 | IterationStatement* target() const { return target_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 911 | |
| 912 | protected: |
| 913 | template<class> friend class AstNodeFactory; |
| 914 | |
| 915 | explicit ContinueStatement(IterationStatement* target) |
| 916 | : target_(target) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 917 | |
| 918 | private: |
| 919 | IterationStatement* target_; |
| 920 | }; |
| 921 | |
| 922 | |
| 923 | class BreakStatement: public Statement { |
| 924 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 925 | DECLARE_NODE_TYPE(BreakStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 926 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 927 | BreakableStatement* target() const { return target_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 928 | |
| 929 | protected: |
| 930 | template<class> friend class AstNodeFactory; |
| 931 | |
| 932 | explicit BreakStatement(BreakableStatement* target) |
| 933 | : target_(target) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 934 | |
| 935 | private: |
| 936 | BreakableStatement* target_; |
| 937 | }; |
| 938 | |
| 939 | |
| 940 | class ReturnStatement: public Statement { |
| 941 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 942 | DECLARE_NODE_TYPE(ReturnStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 943 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 944 | Expression* expression() const { return expression_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 945 | |
| 946 | protected: |
| 947 | template<class> friend class AstNodeFactory; |
| 948 | |
| 949 | explicit ReturnStatement(Expression* expression) |
| 950 | : expression_(expression) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 951 | |
| 952 | private: |
| 953 | Expression* expression_; |
| 954 | }; |
| 955 | |
| 956 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 957 | class WithStatement: public Statement { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 958 | public: |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 959 | DECLARE_NODE_TYPE(WithStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 960 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 961 | Expression* expression() const { return expression_; } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 962 | Statement* statement() const { return statement_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 963 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 964 | protected: |
| 965 | template<class> friend class AstNodeFactory; |
| 966 | |
| 967 | WithStatement(Expression* expression, Statement* statement) |
| 968 | : expression_(expression), |
| 969 | statement_(statement) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 970 | |
| 971 | private: |
| 972 | Expression* expression_; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 973 | Statement* statement_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 974 | }; |
| 975 | |
| 976 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 977 | class CaseClause: public ZoneObject { |
| 978 | public: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 979 | CaseClause(Isolate* isolate, |
| 980 | Expression* label, |
| 981 | ZoneList<Statement*>* statements, |
| 982 | int pos); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 983 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 984 | bool is_default() const { return label_ == NULL; } |
| 985 | Expression* label() const { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 986 | CHECK(!is_default()); |
| 987 | return label_; |
| 988 | } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 989 | Label* body_target() { return &body_target_; } |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 990 | ZoneList<Statement*>* statements() const { return statements_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 991 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 992 | int position() const { return position_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 993 | void set_position(int pos) { position_ = pos; } |
| 994 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 995 | int EntryId() { return entry_id_; } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 996 | int CompareId() { return compare_id_; } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 997 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 998 | // Type feedback information. |
| 999 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1000 | bool IsSmiCompare() { return compare_type_ == SMI_ONLY; } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1001 | bool IsSymbolCompare() { return compare_type_ == SYMBOL_ONLY; } |
| 1002 | bool IsStringCompare() { return compare_type_ == STRING_ONLY; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1003 | bool IsObjectCompare() { return compare_type_ == OBJECT_ONLY; } |
| 1004 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1005 | private: |
| 1006 | Expression* label_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1007 | Label body_target_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1008 | ZoneList<Statement*>* statements_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1009 | int position_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1010 | enum CompareTypeFeedback { |
| 1011 | NONE, |
| 1012 | SMI_ONLY, |
| 1013 | SYMBOL_ONLY, |
| 1014 | STRING_ONLY, |
| 1015 | OBJECT_ONLY |
| 1016 | }; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1017 | CompareTypeFeedback compare_type_; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1018 | int compare_id_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1019 | int entry_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1020 | }; |
| 1021 | |
| 1022 | |
| 1023 | class SwitchStatement: public BreakableStatement { |
| 1024 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1025 | DECLARE_NODE_TYPE(SwitchStatement) |
| 1026 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1027 | void Initialize(Expression* tag, ZoneList<CaseClause*>* cases) { |
| 1028 | tag_ = tag; |
| 1029 | cases_ = cases; |
| 1030 | } |
| 1031 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1032 | Expression* tag() const { return tag_; } |
| 1033 | ZoneList<CaseClause*>* cases() const { return cases_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1034 | |
| 1035 | protected: |
| 1036 | template<class> friend class AstNodeFactory; |
| 1037 | |
| 1038 | SwitchStatement(Isolate* isolate, ZoneStringList* labels) |
| 1039 | : BreakableStatement(isolate, labels, TARGET_FOR_ANONYMOUS), |
| 1040 | tag_(NULL), |
| 1041 | cases_(NULL) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1042 | |
| 1043 | private: |
| 1044 | Expression* tag_; |
| 1045 | ZoneList<CaseClause*>* cases_; |
| 1046 | }; |
| 1047 | |
| 1048 | |
| 1049 | // If-statements always have non-null references to their then- and |
| 1050 | // else-parts. When parsing if-statements with no explicit else-part, |
| 1051 | // the parser implicitly creates an empty statement. Use the |
| 1052 | // HasThenStatement() and HasElseStatement() functions to check if a |
| 1053 | // given if-statement has a then- or an else-part containing code. |
| 1054 | class IfStatement: public Statement { |
| 1055 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1056 | DECLARE_NODE_TYPE(IfStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1057 | |
| 1058 | bool HasThenStatement() const { return !then_statement()->IsEmpty(); } |
| 1059 | bool HasElseStatement() const { return !else_statement()->IsEmpty(); } |
| 1060 | |
| 1061 | Expression* condition() const { return condition_; } |
| 1062 | Statement* then_statement() const { return then_statement_; } |
| 1063 | Statement* else_statement() const { return else_statement_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1064 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1065 | int IfId() const { return if_id_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1066 | int ThenId() const { return then_id_; } |
| 1067 | int ElseId() const { return else_id_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1068 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1069 | protected: |
| 1070 | template<class> friend class AstNodeFactory; |
| 1071 | |
| 1072 | IfStatement(Isolate* isolate, |
| 1073 | Expression* condition, |
| 1074 | Statement* then_statement, |
| 1075 | Statement* else_statement) |
| 1076 | : condition_(condition), |
| 1077 | then_statement_(then_statement), |
| 1078 | else_statement_(else_statement), |
| 1079 | if_id_(GetNextId(isolate)), |
| 1080 | then_id_(GetNextId(isolate)), |
| 1081 | else_id_(GetNextId(isolate)) { |
| 1082 | } |
| 1083 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1084 | private: |
| 1085 | Expression* condition_; |
| 1086 | Statement* then_statement_; |
| 1087 | Statement* else_statement_; |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1088 | int if_id_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1089 | int then_id_; |
| 1090 | int else_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1091 | }; |
| 1092 | |
| 1093 | |
| 1094 | // NOTE: TargetCollectors are represented as nodes to fit in the target |
| 1095 | // stack in the compiler; this should probably be reworked. |
| 1096 | class TargetCollector: public AstNode { |
| 1097 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1098 | TargetCollector() : targets_(0) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1099 | |
| 1100 | // Adds a jump target to the collector. The collector stores a pointer not |
| 1101 | // a copy of the target to make binding work, so make sure not to pass in |
| 1102 | // references to something on the stack. |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1103 | void AddTarget(Label* target); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1104 | |
| 1105 | // Virtual behaviour. TargetCollectors are never part of the AST. |
| 1106 | virtual void Accept(AstVisitor* v) { UNREACHABLE(); } |
| 1107 | virtual TargetCollector* AsTargetCollector() { return this; } |
| 1108 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1109 | ZoneList<Label*>* targets() { return &targets_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1110 | |
| 1111 | private: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1112 | ZoneList<Label*> targets_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1113 | }; |
| 1114 | |
| 1115 | |
| 1116 | class TryStatement: public Statement { |
| 1117 | public: |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1118 | void set_escaping_targets(ZoneList<Label*>* targets) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1119 | escaping_targets_ = targets; |
| 1120 | } |
| 1121 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1122 | int index() const { return index_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1123 | Block* try_block() const { return try_block_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1124 | ZoneList<Label*>* escaping_targets() const { return escaping_targets_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1125 | |
| 1126 | protected: |
| 1127 | TryStatement(int index, Block* try_block) |
| 1128 | : index_(index), |
| 1129 | try_block_(try_block), |
| 1130 | escaping_targets_(NULL) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1131 | |
| 1132 | private: |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1133 | // Unique (per-function) index of this handler. This is not an AST ID. |
| 1134 | int index_; |
| 1135 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1136 | Block* try_block_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1137 | ZoneList<Label*>* escaping_targets_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1138 | }; |
| 1139 | |
| 1140 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1141 | class TryCatchStatement: public TryStatement { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1142 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1143 | DECLARE_NODE_TYPE(TryCatchStatement) |
| 1144 | |
| 1145 | Scope* scope() { return scope_; } |
| 1146 | Variable* variable() { return variable_; } |
| 1147 | Block* catch_block() const { return catch_block_; } |
| 1148 | |
| 1149 | protected: |
| 1150 | template<class> friend class AstNodeFactory; |
| 1151 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1152 | TryCatchStatement(int index, |
| 1153 | Block* try_block, |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1154 | Scope* scope, |
| 1155 | Variable* variable, |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1156 | Block* catch_block) |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1157 | : TryStatement(index, try_block), |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1158 | scope_(scope), |
| 1159 | variable_(variable), |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1160 | catch_block_(catch_block) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1161 | } |
| 1162 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1163 | private: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1164 | Scope* scope_; |
| 1165 | Variable* variable_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1166 | Block* catch_block_; |
| 1167 | }; |
| 1168 | |
| 1169 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 1170 | class TryFinallyStatement: public TryStatement { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1171 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1172 | DECLARE_NODE_TYPE(TryFinallyStatement) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1173 | |
| 1174 | Block* finally_block() const { return finally_block_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1175 | |
| 1176 | protected: |
| 1177 | template<class> friend class AstNodeFactory; |
| 1178 | |
| 1179 | TryFinallyStatement(int index, Block* try_block, Block* finally_block) |
| 1180 | : TryStatement(index, try_block), |
| 1181 | finally_block_(finally_block) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1182 | |
| 1183 | private: |
| 1184 | Block* finally_block_; |
| 1185 | }; |
| 1186 | |
| 1187 | |
| 1188 | class DebuggerStatement: public Statement { |
| 1189 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1190 | DECLARE_NODE_TYPE(DebuggerStatement) |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1191 | |
| 1192 | protected: |
| 1193 | template<class> friend class AstNodeFactory; |
| 1194 | |
| 1195 | DebuggerStatement() {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1196 | }; |
| 1197 | |
| 1198 | |
| 1199 | class EmptyStatement: public Statement { |
| 1200 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1201 | DECLARE_NODE_TYPE(EmptyStatement) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1202 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1203 | protected: |
| 1204 | template<class> friend class AstNodeFactory; |
| 1205 | |
| 1206 | EmptyStatement() {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1207 | }; |
| 1208 | |
| 1209 | |
| 1210 | class Literal: public Expression { |
| 1211 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1212 | DECLARE_NODE_TYPE(Literal) |
| 1213 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1214 | virtual bool IsPropertyName() { |
| 1215 | if (handle_->IsSymbol()) { |
| 1216 | uint32_t ignored; |
| 1217 | return !String::cast(*handle_)->AsArrayIndex(&ignored); |
| 1218 | } |
| 1219 | return false; |
| 1220 | } |
| 1221 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1222 | Handle<String> AsPropertyName() { |
| 1223 | ASSERT(IsPropertyName()); |
| 1224 | return Handle<String>::cast(handle_); |
| 1225 | } |
| 1226 | |
| 1227 | virtual bool ToBooleanIsTrue() { return handle_->ToBoolean()->IsTrue(); } |
| 1228 | virtual bool ToBooleanIsFalse() { return handle_->ToBoolean()->IsFalse(); } |
| 1229 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1230 | // Identity testers. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1231 | bool IsNull() const { |
| 1232 | ASSERT(!handle_.is_null()); |
| 1233 | return handle_->IsNull(); |
| 1234 | } |
| 1235 | bool IsTrue() const { |
| 1236 | ASSERT(!handle_.is_null()); |
| 1237 | return handle_->IsTrue(); |
| 1238 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1239 | bool IsFalse() const { |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1240 | ASSERT(!handle_.is_null()); |
| 1241 | return handle_->IsFalse(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1242 | } |
| 1243 | |
| 1244 | Handle<Object> handle() const { return handle_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1245 | |
| 1246 | // Support for using Literal as a HashMap key. NOTE: Currently, this works |
| 1247 | // only for string and number literals! |
| 1248 | uint32_t Hash() { return ToString()->Hash(); } |
| 1249 | |
| 1250 | static bool Match(void* literal1, void* literal2) { |
| 1251 | Handle<String> s1 = static_cast<Literal*>(literal1)->ToString(); |
| 1252 | Handle<String> s2 = static_cast<Literal*>(literal2)->ToString(); |
| 1253 | return s1->Equals(*s2); |
| 1254 | } |
| 1255 | |
| 1256 | protected: |
| 1257 | template<class> friend class AstNodeFactory; |
| 1258 | |
| 1259 | Literal(Isolate* isolate, Handle<Object> handle) |
| 1260 | : Expression(isolate), |
| 1261 | handle_(handle) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1262 | |
| 1263 | private: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1264 | Handle<String> ToString(); |
| 1265 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1266 | Handle<Object> handle_; |
| 1267 | }; |
| 1268 | |
| 1269 | |
| 1270 | // Base class for literals that needs space in the corresponding JSFunction. |
| 1271 | class MaterializedLiteral: public Expression { |
| 1272 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1273 | virtual MaterializedLiteral* AsMaterializedLiteral() { return this; } |
| 1274 | |
| 1275 | int literal_index() { return literal_index_; } |
| 1276 | |
| 1277 | // A materialized literal is simple if the values consist of only |
| 1278 | // constants and simple object and array literals. |
| 1279 | bool is_simple() const { return is_simple_; } |
| 1280 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1281 | int depth() const { return depth_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1282 | |
| 1283 | protected: |
| 1284 | MaterializedLiteral(Isolate* isolate, |
| 1285 | int literal_index, |
| 1286 | bool is_simple, |
| 1287 | int depth) |
| 1288 | : Expression(isolate), |
| 1289 | literal_index_(literal_index), |
| 1290 | is_simple_(is_simple), |
| 1291 | depth_(depth) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1292 | |
| 1293 | private: |
| 1294 | int literal_index_; |
| 1295 | bool is_simple_; |
| 1296 | int depth_; |
| 1297 | }; |
| 1298 | |
| 1299 | |
| 1300 | // An object literal has a boilerplate object that is used |
| 1301 | // for minimizing the work when constructing it at runtime. |
| 1302 | class ObjectLiteral: public MaterializedLiteral { |
| 1303 | public: |
| 1304 | // Property is used for passing information |
| 1305 | // about an object literal's properties from the parser |
| 1306 | // to the code generator. |
| 1307 | class Property: public ZoneObject { |
| 1308 | public: |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1309 | enum Kind { |
| 1310 | CONSTANT, // Property with constant value (compile time). |
| 1311 | COMPUTED, // Property with computed value (execution time). |
| 1312 | MATERIALIZED_LITERAL, // Property value is a materialized literal. |
| 1313 | GETTER, SETTER, // Property is an accessor function. |
| 1314 | PROTOTYPE // Property is __proto__. |
| 1315 | }; |
| 1316 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1317 | Property(Literal* key, Expression* value, Isolate* isolate); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1318 | |
| 1319 | Literal* key() { return key_; } |
| 1320 | Expression* value() { return value_; } |
| 1321 | Kind kind() { return kind_; } |
| 1322 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1323 | // Type feedback information. |
| 1324 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1325 | bool IsMonomorphic() { return !receiver_type_.is_null(); } |
| 1326 | Handle<Map> GetReceiverType() { return receiver_type_; } |
| 1327 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 1328 | bool IsCompileTimeValue(); |
| 1329 | |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1330 | void set_emit_store(bool emit_store); |
| 1331 | bool emit_store(); |
| 1332 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1333 | protected: |
| 1334 | template<class> friend class AstNodeFactory; |
| 1335 | |
| 1336 | Property(bool is_getter, FunctionLiteral* value); |
| 1337 | void set_key(Literal* key) { key_ = key; } |
| 1338 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1339 | private: |
| 1340 | Literal* key_; |
| 1341 | Expression* value_; |
| 1342 | Kind kind_; |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1343 | bool emit_store_; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1344 | Handle<Map> receiver_type_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1345 | }; |
| 1346 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1347 | DECLARE_NODE_TYPE(ObjectLiteral) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1348 | |
| 1349 | Handle<FixedArray> constant_properties() const { |
| 1350 | return constant_properties_; |
| 1351 | } |
| 1352 | ZoneList<Property*>* properties() const { return properties_; } |
| 1353 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1354 | bool fast_elements() const { return fast_elements_; } |
| 1355 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1356 | bool has_function() { return has_function_; } |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 1357 | |
| 1358 | // Mark all computed expressions that are bound to a key that |
| 1359 | // is shadowed by a later occurrence of the same key. For the |
| 1360 | // marked expressions, no store code is emitted. |
| 1361 | void CalculateEmitStore(); |
| 1362 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1363 | enum Flags { |
| 1364 | kNoFlags = 0, |
| 1365 | kFastElements = 1, |
| 1366 | kHasFunction = 1 << 1 |
| 1367 | }; |
| 1368 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1369 | struct Accessors: public ZoneObject { |
| 1370 | Accessors() : getter(NULL), setter(NULL) { } |
| 1371 | Expression* getter; |
| 1372 | Expression* setter; |
| 1373 | }; |
| 1374 | |
| 1375 | protected: |
| 1376 | template<class> friend class AstNodeFactory; |
| 1377 | |
| 1378 | ObjectLiteral(Isolate* isolate, |
| 1379 | Handle<FixedArray> constant_properties, |
| 1380 | ZoneList<Property*>* properties, |
| 1381 | int literal_index, |
| 1382 | bool is_simple, |
| 1383 | bool fast_elements, |
| 1384 | int depth, |
| 1385 | bool has_function) |
| 1386 | : MaterializedLiteral(isolate, literal_index, is_simple, depth), |
| 1387 | constant_properties_(constant_properties), |
| 1388 | properties_(properties), |
| 1389 | fast_elements_(fast_elements), |
| 1390 | has_function_(has_function) {} |
| 1391 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1392 | private: |
| 1393 | Handle<FixedArray> constant_properties_; |
| 1394 | ZoneList<Property*>* properties_; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1395 | bool fast_elements_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1396 | bool has_function_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1397 | }; |
| 1398 | |
| 1399 | |
| 1400 | // Node for capturing a regexp literal. |
| 1401 | class RegExpLiteral: public MaterializedLiteral { |
| 1402 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1403 | DECLARE_NODE_TYPE(RegExpLiteral) |
| 1404 | |
| 1405 | Handle<String> pattern() const { return pattern_; } |
| 1406 | Handle<String> flags() const { return flags_; } |
| 1407 | |
| 1408 | protected: |
| 1409 | template<class> friend class AstNodeFactory; |
| 1410 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1411 | RegExpLiteral(Isolate* isolate, |
| 1412 | Handle<String> pattern, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1413 | Handle<String> flags, |
| 1414 | int literal_index) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1415 | : MaterializedLiteral(isolate, literal_index, false, 1), |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1416 | pattern_(pattern), |
| 1417 | flags_(flags) {} |
| 1418 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1419 | private: |
| 1420 | Handle<String> pattern_; |
| 1421 | Handle<String> flags_; |
| 1422 | }; |
| 1423 | |
| 1424 | // An array literal has a literals object that is used |
| 1425 | // for minimizing the work when constructing it at runtime. |
| 1426 | class ArrayLiteral: public MaterializedLiteral { |
| 1427 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1428 | DECLARE_NODE_TYPE(ArrayLiteral) |
| 1429 | |
| 1430 | Handle<FixedArray> constant_elements() const { return constant_elements_; } |
| 1431 | ZoneList<Expression*>* values() const { return values_; } |
| 1432 | |
| 1433 | // Return an AST id for an element that is used in simulate instructions. |
| 1434 | int GetIdForElement(int i) { return first_element_id_ + i; } |
| 1435 | |
| 1436 | protected: |
| 1437 | template<class> friend class AstNodeFactory; |
| 1438 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1439 | ArrayLiteral(Isolate* isolate, |
| 1440 | Handle<FixedArray> constant_elements, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1441 | ZoneList<Expression*>* values, |
| 1442 | int literal_index, |
| 1443 | bool is_simple, |
| 1444 | int depth) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1445 | : MaterializedLiteral(isolate, literal_index, is_simple, depth), |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1446 | constant_elements_(constant_elements), |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1447 | values_(values), |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1448 | first_element_id_(ReserveIdRange(isolate, values->length())) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1449 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1450 | private: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1451 | Handle<FixedArray> constant_elements_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1452 | ZoneList<Expression*>* values_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1453 | int first_element_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1454 | }; |
| 1455 | |
| 1456 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1457 | class VariableProxy: public Expression { |
| 1458 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1459 | DECLARE_NODE_TYPE(VariableProxy) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1460 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1461 | virtual bool IsValidLeftHandSide() { |
| 1462 | return var_ == NULL ? true : var_->IsValidLeftHandSide(); |
| 1463 | } |
| 1464 | |
| 1465 | bool IsVariable(Handle<String> n) { |
| 1466 | return !is_this() && name().is_identical_to(n); |
| 1467 | } |
| 1468 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 1469 | bool IsArguments() { return var_ != NULL && var_->is_arguments(); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1470 | |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 1471 | bool IsLValue() { |
| 1472 | return is_lvalue_; |
| 1473 | } |
| 1474 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1475 | Handle<String> name() const { return name_; } |
| 1476 | Variable* var() const { return var_; } |
| 1477 | bool is_this() const { return is_this_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1478 | int position() const { return position_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1479 | Interface* interface() const { return interface_; } |
| 1480 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1481 | |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1482 | void MarkAsTrivial() { is_trivial_ = true; } |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 1483 | void MarkAsLValue() { is_lvalue_ = true; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1484 | |
| 1485 | // Bind this proxy to the variable var. |
| 1486 | void BindTo(Variable* var); |
| 1487 | |
| 1488 | protected: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1489 | template<class> friend class AstNodeFactory; |
| 1490 | |
| 1491 | VariableProxy(Isolate* isolate, Variable* var); |
| 1492 | |
| 1493 | VariableProxy(Isolate* isolate, |
| 1494 | Handle<String> name, |
| 1495 | bool is_this, |
| 1496 | int position, |
| 1497 | Interface* interface); |
| 1498 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1499 | Handle<String> name_; |
| 1500 | Variable* var_; // resolved variable, or NULL |
| 1501 | bool is_this_; |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1502 | bool is_trivial_; |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 1503 | // True if this variable proxy is being used in an assignment |
| 1504 | // or with a increment/decrement operator. |
| 1505 | bool is_lvalue_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1506 | int position_; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1507 | Interface* interface_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1508 | }; |
| 1509 | |
| 1510 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1511 | class Property: public Expression { |
| 1512 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1513 | DECLARE_NODE_TYPE(Property) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1514 | |
| 1515 | virtual bool IsValidLeftHandSide() { return true; } |
| 1516 | |
| 1517 | Expression* obj() const { return obj_; } |
| 1518 | Expression* key() const { return key_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1519 | virtual int position() const { return pos_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1520 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1521 | bool IsStringLength() const { return is_string_length_; } |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1522 | bool IsStringAccess() const { return is_string_access_; } |
Steve Block | 9fac840 | 2011-05-12 15:51:54 +0100 | [diff] [blame] | 1523 | bool IsFunctionPrototype() const { return is_function_prototype_; } |
| 1524 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1525 | // Type feedback information. |
| 1526 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1527 | virtual bool IsMonomorphic() { return is_monomorphic_; } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1528 | virtual SmallMapList* GetReceiverTypes() { return &receiver_types_; } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1529 | bool IsArrayLength() { return is_array_length_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1530 | bool IsUninitialized() { return is_uninitialized_; } |
| 1531 | |
| 1532 | protected: |
| 1533 | template<class> friend class AstNodeFactory; |
| 1534 | |
| 1535 | Property(Isolate* isolate, |
| 1536 | Expression* obj, |
| 1537 | Expression* key, |
| 1538 | int pos) |
| 1539 | : Expression(isolate), |
| 1540 | obj_(obj), |
| 1541 | key_(key), |
| 1542 | pos_(pos), |
| 1543 | is_monomorphic_(false), |
| 1544 | is_uninitialized_(false), |
| 1545 | is_array_length_(false), |
| 1546 | is_string_length_(false), |
| 1547 | is_string_access_(false), |
| 1548 | is_function_prototype_(false) { } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1549 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1550 | private: |
| 1551 | Expression* obj_; |
| 1552 | Expression* key_; |
| 1553 | int pos_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1554 | |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1555 | SmallMapList receiver_types_; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1556 | bool is_monomorphic_ : 1; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1557 | bool is_uninitialized_ : 1; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1558 | bool is_array_length_ : 1; |
| 1559 | bool is_string_length_ : 1; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1560 | bool is_string_access_ : 1; |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 1561 | bool is_function_prototype_ : 1; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1562 | }; |
| 1563 | |
| 1564 | |
| 1565 | class Call: public Expression { |
| 1566 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1567 | DECLARE_NODE_TYPE(Call) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1568 | |
| 1569 | Expression* expression() const { return expression_; } |
| 1570 | ZoneList<Expression*>* arguments() const { return arguments_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1571 | virtual int position() const { return pos_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1572 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1573 | void RecordTypeFeedback(TypeFeedbackOracle* oracle, |
| 1574 | CallKind call_kind); |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1575 | virtual SmallMapList* GetReceiverTypes() { return &receiver_types_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1576 | virtual bool IsMonomorphic() { return is_monomorphic_; } |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1577 | CheckType check_type() const { return check_type_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1578 | Handle<JSFunction> target() { return target_; } |
| 1579 | Handle<JSObject> holder() { return holder_; } |
| 1580 | Handle<JSGlobalPropertyCell> cell() { return cell_; } |
| 1581 | |
| 1582 | bool ComputeTarget(Handle<Map> type, Handle<String> name); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1583 | bool ComputeGlobalTarget(Handle<GlobalObject> global, LookupResult* lookup); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1584 | |
| 1585 | // Bailout support. |
| 1586 | int ReturnId() const { return return_id_; } |
| 1587 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1588 | #ifdef DEBUG |
| 1589 | // Used to assert that the FullCodeGenerator records the return site. |
| 1590 | bool return_is_recorded_; |
| 1591 | #endif |
| 1592 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1593 | protected: |
| 1594 | template<class> friend class AstNodeFactory; |
| 1595 | |
| 1596 | Call(Isolate* isolate, |
| 1597 | Expression* expression, |
| 1598 | ZoneList<Expression*>* arguments, |
| 1599 | int pos) |
| 1600 | : Expression(isolate), |
| 1601 | expression_(expression), |
| 1602 | arguments_(arguments), |
| 1603 | pos_(pos), |
| 1604 | is_monomorphic_(false), |
| 1605 | check_type_(RECEIVER_MAP_CHECK), |
| 1606 | return_id_(GetNextId(isolate)) { } |
| 1607 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1608 | private: |
| 1609 | Expression* expression_; |
| 1610 | ZoneList<Expression*>* arguments_; |
| 1611 | int pos_; |
| 1612 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1613 | bool is_monomorphic_; |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 1614 | CheckType check_type_; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1615 | SmallMapList receiver_types_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1616 | Handle<JSFunction> target_; |
| 1617 | Handle<JSObject> holder_; |
| 1618 | Handle<JSGlobalPropertyCell> cell_; |
| 1619 | |
| 1620 | int return_id_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1621 | }; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1622 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1623 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1624 | class CallNew: public Expression { |
| 1625 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1626 | DECLARE_NODE_TYPE(CallNew) |
| 1627 | |
| 1628 | Expression* expression() const { return expression_; } |
| 1629 | ZoneList<Expression*>* arguments() const { return arguments_; } |
| 1630 | virtual int position() const { return pos_; } |
| 1631 | |
| 1632 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1633 | virtual bool IsMonomorphic() { return is_monomorphic_; } |
| 1634 | Handle<JSFunction> target() { return target_; } |
| 1635 | |
| 1636 | // Bailout support. |
| 1637 | int ReturnId() const { return return_id_; } |
| 1638 | |
| 1639 | protected: |
| 1640 | template<class> friend class AstNodeFactory; |
| 1641 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1642 | CallNew(Isolate* isolate, |
| 1643 | Expression* expression, |
| 1644 | ZoneList<Expression*>* arguments, |
| 1645 | int pos) |
| 1646 | : Expression(isolate), |
| 1647 | expression_(expression), |
| 1648 | arguments_(arguments), |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1649 | pos_(pos), |
| 1650 | is_monomorphic_(false), |
| 1651 | return_id_(GetNextId(isolate)) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1652 | |
| 1653 | private: |
| 1654 | Expression* expression_; |
| 1655 | ZoneList<Expression*>* arguments_; |
| 1656 | int pos_; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1657 | |
| 1658 | bool is_monomorphic_; |
| 1659 | Handle<JSFunction> target_; |
| 1660 | |
| 1661 | int return_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1662 | }; |
| 1663 | |
| 1664 | |
| 1665 | // The CallRuntime class does not represent any official JavaScript |
| 1666 | // language construct. Instead it is used to call a C or JS function |
| 1667 | // with a set of arguments. This is used from the builtins that are |
| 1668 | // implemented in JavaScript (see "v8natives.js"). |
| 1669 | class CallRuntime: public Expression { |
| 1670 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1671 | DECLARE_NODE_TYPE(CallRuntime) |
| 1672 | |
| 1673 | Handle<String> name() const { return name_; } |
| 1674 | const Runtime::Function* function() const { return function_; } |
| 1675 | ZoneList<Expression*>* arguments() const { return arguments_; } |
| 1676 | bool is_jsruntime() const { return function_ == NULL; } |
| 1677 | |
| 1678 | protected: |
| 1679 | template<class> friend class AstNodeFactory; |
| 1680 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1681 | CallRuntime(Isolate* isolate, |
| 1682 | Handle<String> name, |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1683 | const Runtime::Function* function, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1684 | ZoneList<Expression*>* arguments) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1685 | : Expression(isolate), |
| 1686 | name_(name), |
| 1687 | function_(function), |
| 1688 | arguments_(arguments) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1689 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1690 | private: |
| 1691 | Handle<String> name_; |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 1692 | const Runtime::Function* function_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1693 | ZoneList<Expression*>* arguments_; |
| 1694 | }; |
| 1695 | |
| 1696 | |
| 1697 | class UnaryOperation: public Expression { |
| 1698 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1699 | DECLARE_NODE_TYPE(UnaryOperation) |
| 1700 | |
| 1701 | virtual bool ResultOverwriteAllowed(); |
| 1702 | |
| 1703 | Token::Value op() const { return op_; } |
| 1704 | Expression* expression() const { return expression_; } |
| 1705 | virtual int position() const { return pos_; } |
| 1706 | |
| 1707 | int MaterializeTrueId() { return materialize_true_id_; } |
| 1708 | int MaterializeFalseId() { return materialize_false_id_; } |
| 1709 | |
| 1710 | protected: |
| 1711 | template<class> friend class AstNodeFactory; |
| 1712 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1713 | UnaryOperation(Isolate* isolate, |
| 1714 | Token::Value op, |
| 1715 | Expression* expression, |
| 1716 | int pos) |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1717 | : Expression(isolate), |
| 1718 | op_(op), |
| 1719 | expression_(expression), |
| 1720 | pos_(pos), |
| 1721 | materialize_true_id_(AstNode::kNoNumber), |
| 1722 | materialize_false_id_(AstNode::kNoNumber) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1723 | ASSERT(Token::IsUnaryOp(op)); |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1724 | if (op == Token::NOT) { |
| 1725 | materialize_true_id_ = GetNextId(isolate); |
| 1726 | materialize_false_id_ = GetNextId(isolate); |
| 1727 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1728 | } |
| 1729 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1730 | private: |
| 1731 | Token::Value op_; |
| 1732 | Expression* expression_; |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1733 | int pos_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 1734 | |
| 1735 | // For unary not (Token::NOT), the AST ids where true and false will |
| 1736 | // actually be materialized, respectively. |
| 1737 | int materialize_true_id_; |
| 1738 | int materialize_false_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1739 | }; |
| 1740 | |
| 1741 | |
| 1742 | class BinaryOperation: public Expression { |
| 1743 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1744 | DECLARE_NODE_TYPE(BinaryOperation) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1745 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1746 | virtual bool ResultOverwriteAllowed(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1747 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1748 | Token::Value op() const { return op_; } |
| 1749 | Expression* left() const { return left_; } |
| 1750 | Expression* right() const { return right_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1751 | virtual int position() const { return pos_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1752 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1753 | // Bailout support. |
| 1754 | int RightId() const { return right_id_; } |
| 1755 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1756 | protected: |
| 1757 | template<class> friend class AstNodeFactory; |
| 1758 | |
| 1759 | BinaryOperation(Isolate* isolate, |
| 1760 | Token::Value op, |
| 1761 | Expression* left, |
| 1762 | Expression* right, |
| 1763 | int pos) |
| 1764 | : Expression(isolate), op_(op), left_(left), right_(right), pos_(pos) { |
| 1765 | ASSERT(Token::IsBinaryOp(op)); |
| 1766 | right_id_ = (op == Token::AND || op == Token::OR) |
| 1767 | ? GetNextId(isolate) |
| 1768 | : AstNode::kNoNumber; |
| 1769 | } |
| 1770 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1771 | private: |
| 1772 | Token::Value op_; |
| 1773 | Expression* left_; |
| 1774 | Expression* right_; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1775 | int pos_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1776 | // The short-circuit logical operations have an AST ID for their |
| 1777 | // right-hand subexpression. |
| 1778 | int right_id_; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1779 | }; |
| 1780 | |
| 1781 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1782 | class CountOperation: public Expression { |
| 1783 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1784 | DECLARE_NODE_TYPE(CountOperation) |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1785 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1786 | bool is_prefix() const { return is_prefix_; } |
| 1787 | bool is_postfix() const { return !is_prefix_; } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1788 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1789 | Token::Value op() const { return op_; } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1790 | Token::Value binary_op() { |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1791 | return (op() == Token::INC) ? Token::ADD : Token::SUB; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1792 | } |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1793 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1794 | Expression* expression() const { return expression_; } |
| 1795 | virtual int position() const { return pos_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1796 | |
| 1797 | virtual void MarkAsStatement() { is_prefix_ = true; } |
| 1798 | |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1799 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1800 | virtual bool IsMonomorphic() { return is_monomorphic_; } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1801 | virtual SmallMapList* GetReceiverTypes() { return &receiver_types_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1802 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1803 | // Bailout support. |
| 1804 | int AssignmentId() const { return assignment_id_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1805 | int CountId() const { return count_id_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1806 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1807 | protected: |
| 1808 | template<class> friend class AstNodeFactory; |
| 1809 | |
| 1810 | CountOperation(Isolate* isolate, |
| 1811 | Token::Value op, |
| 1812 | bool is_prefix, |
| 1813 | Expression* expr, |
| 1814 | int pos) |
| 1815 | : Expression(isolate), |
| 1816 | op_(op), |
| 1817 | is_prefix_(is_prefix), |
| 1818 | expression_(expr), |
| 1819 | pos_(pos), |
| 1820 | assignment_id_(GetNextId(isolate)), |
| 1821 | count_id_(GetNextId(isolate)) {} |
| 1822 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1823 | private: |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1824 | Token::Value op_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1825 | bool is_prefix_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1826 | bool is_monomorphic_; |
| 1827 | Expression* expression_; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1828 | int pos_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1829 | int assignment_id_; |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1830 | int count_id_; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1831 | SmallMapList receiver_types_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1832 | }; |
| 1833 | |
| 1834 | |
| 1835 | class CompareOperation: public Expression { |
| 1836 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1837 | DECLARE_NODE_TYPE(CompareOperation) |
| 1838 | |
| 1839 | Token::Value op() const { return op_; } |
| 1840 | Expression* left() const { return left_; } |
| 1841 | Expression* right() const { return right_; } |
| 1842 | virtual int position() const { return pos_; } |
| 1843 | |
| 1844 | // Type feedback information. |
| 1845 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1846 | bool IsSmiCompare() { return compare_type_ == SMI_ONLY; } |
| 1847 | bool IsObjectCompare() { return compare_type_ == OBJECT_ONLY; } |
| 1848 | |
| 1849 | // Match special cases. |
| 1850 | bool IsLiteralCompareTypeof(Expression** expr, Handle<String>* check); |
| 1851 | bool IsLiteralCompareUndefined(Expression** expr); |
| 1852 | bool IsLiteralCompareNull(Expression** expr); |
| 1853 | |
| 1854 | protected: |
| 1855 | template<class> friend class AstNodeFactory; |
| 1856 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1857 | CompareOperation(Isolate* isolate, |
| 1858 | Token::Value op, |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1859 | Expression* left, |
| 1860 | Expression* right, |
| 1861 | int pos) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1862 | : Expression(isolate), |
| 1863 | op_(op), |
| 1864 | left_(left), |
| 1865 | right_(right), |
| 1866 | pos_(pos), |
| 1867 | compare_type_(NONE) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1868 | ASSERT(Token::IsCompareOp(op)); |
| 1869 | } |
| 1870 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1871 | private: |
| 1872 | Token::Value op_; |
| 1873 | Expression* left_; |
| 1874 | Expression* right_; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1875 | int pos_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1876 | |
| 1877 | enum CompareTypeFeedback { NONE, SMI_ONLY, OBJECT_ONLY }; |
| 1878 | CompareTypeFeedback compare_type_; |
Kristian Monsen | 80d68ea | 2010-09-08 11:05:35 +0100 | [diff] [blame] | 1879 | }; |
| 1880 | |
| 1881 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1882 | class Conditional: public Expression { |
| 1883 | public: |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1884 | DECLARE_NODE_TYPE(Conditional) |
| 1885 | |
| 1886 | Expression* condition() const { return condition_; } |
| 1887 | Expression* then_expression() const { return then_expression_; } |
| 1888 | Expression* else_expression() const { return else_expression_; } |
| 1889 | |
| 1890 | int then_expression_position() const { return then_expression_position_; } |
| 1891 | int else_expression_position() const { return else_expression_position_; } |
| 1892 | |
| 1893 | int ThenId() const { return then_id_; } |
| 1894 | int ElseId() const { return else_id_; } |
| 1895 | |
| 1896 | protected: |
| 1897 | template<class> friend class AstNodeFactory; |
| 1898 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1899 | Conditional(Isolate* isolate, |
| 1900 | Expression* condition, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1901 | Expression* then_expression, |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 1902 | Expression* else_expression, |
| 1903 | int then_expression_position, |
| 1904 | int else_expression_position) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1905 | : Expression(isolate), |
| 1906 | condition_(condition), |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1907 | then_expression_(then_expression), |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 1908 | else_expression_(else_expression), |
| 1909 | then_expression_position_(then_expression_position), |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1910 | else_expression_position_(else_expression_position), |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1911 | then_id_(GetNextId(isolate)), |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1912 | else_id_(GetNextId(isolate)) { } |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 1913 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1914 | private: |
| 1915 | Expression* condition_; |
| 1916 | Expression* then_expression_; |
| 1917 | Expression* else_expression_; |
Ben Murdoch | 7f4d5bd | 2010-06-15 11:15:29 +0100 | [diff] [blame] | 1918 | int then_expression_position_; |
| 1919 | int else_expression_position_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1920 | int then_id_; |
| 1921 | int else_id_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1922 | }; |
| 1923 | |
| 1924 | |
| 1925 | class Assignment: public Expression { |
| 1926 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1927 | DECLARE_NODE_TYPE(Assignment) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1928 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1929 | Assignment* AsSimpleAssignment() { return !is_compound() ? this : NULL; } |
| 1930 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1931 | Token::Value binary_op() const; |
| 1932 | |
| 1933 | Token::Value op() const { return op_; } |
| 1934 | Expression* target() const { return target_; } |
| 1935 | Expression* value() const { return value_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 1936 | virtual int position() const { return pos_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1937 | BinaryOperation* binary_operation() const { return binary_operation_; } |
| 1938 | |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 1939 | // This check relies on the definition order of token in token.h. |
| 1940 | bool is_compound() const { return op() > Token::ASSIGN; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1941 | |
| 1942 | // An initialization block is a series of statments of the form |
| 1943 | // x.y.z.a = ...; x.y.z.b = ...; etc. The parser marks the beginning and |
| 1944 | // ending of these blocks to allow for optimizations of initialization |
| 1945 | // blocks. |
| 1946 | bool starts_initialization_block() { return block_start_; } |
| 1947 | bool ends_initialization_block() { return block_end_; } |
| 1948 | void mark_block_start() { block_start_ = true; } |
| 1949 | void mark_block_end() { block_end_ = true; } |
| 1950 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1951 | // Type feedback information. |
| 1952 | void RecordTypeFeedback(TypeFeedbackOracle* oracle); |
| 1953 | virtual bool IsMonomorphic() { return is_monomorphic_; } |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1954 | virtual SmallMapList* GetReceiverTypes() { return &receiver_types_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1955 | |
| 1956 | // Bailout support. |
| 1957 | int CompoundLoadId() const { return compound_load_id_; } |
| 1958 | int AssignmentId() const { return assignment_id_; } |
| 1959 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 1960 | protected: |
| 1961 | template<class> friend class AstNodeFactory; |
| 1962 | |
| 1963 | Assignment(Isolate* isolate, |
| 1964 | Token::Value op, |
| 1965 | Expression* target, |
| 1966 | Expression* value, |
| 1967 | int pos); |
| 1968 | |
| 1969 | template<class Visitor> |
| 1970 | void Init(Isolate* isolate, AstNodeFactory<Visitor>* factory) { |
| 1971 | ASSERT(Token::IsAssignmentOp(op_)); |
| 1972 | if (is_compound()) { |
| 1973 | binary_operation_ = |
| 1974 | factory->NewBinaryOperation(binary_op(), target_, value_, pos_ + 1); |
| 1975 | compound_load_id_ = GetNextId(isolate); |
| 1976 | } |
| 1977 | } |
| 1978 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1979 | private: |
| 1980 | Token::Value op_; |
| 1981 | Expression* target_; |
| 1982 | Expression* value_; |
| 1983 | int pos_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1984 | BinaryOperation* binary_operation_; |
| 1985 | int compound_load_id_; |
| 1986 | int assignment_id_; |
| 1987 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1988 | bool block_start_; |
| 1989 | bool block_end_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 1990 | |
| 1991 | bool is_monomorphic_; |
Ben Murdoch | 69a99ed | 2011-11-30 16:03:39 +0000 | [diff] [blame] | 1992 | SmallMapList receiver_types_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1993 | }; |
| 1994 | |
| 1995 | |
| 1996 | class Throw: public Expression { |
| 1997 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1998 | DECLARE_NODE_TYPE(Throw) |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 1999 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2000 | Expression* exception() const { return exception_; } |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 2001 | virtual int position() const { return pos_; } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2002 | |
| 2003 | protected: |
| 2004 | template<class> friend class AstNodeFactory; |
| 2005 | |
| 2006 | Throw(Isolate* isolate, Expression* exception, int pos) |
| 2007 | : Expression(isolate), exception_(exception), pos_(pos) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2008 | |
| 2009 | private: |
| 2010 | Expression* exception_; |
| 2011 | int pos_; |
| 2012 | }; |
| 2013 | |
| 2014 | |
| 2015 | class FunctionLiteral: public Expression { |
| 2016 | public: |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2017 | enum Type { |
| 2018 | ANONYMOUS_EXPRESSION, |
| 2019 | NAMED_EXPRESSION, |
| 2020 | DECLARATION |
| 2021 | }; |
| 2022 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2023 | enum ParameterFlag { |
| 2024 | kNoDuplicateParameters = 0, |
| 2025 | kHasDuplicateParameters = 1 |
| 2026 | }; |
| 2027 | |
| 2028 | enum IsFunctionFlag { |
| 2029 | kGlobalOrEval, |
| 2030 | kIsFunction |
| 2031 | }; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2032 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2033 | DECLARE_NODE_TYPE(FunctionLiteral) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2034 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2035 | Handle<String> name() const { return name_; } |
| 2036 | Scope* scope() const { return scope_; } |
| 2037 | ZoneList<Statement*>* body() const { return body_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2038 | void set_function_token_position(int pos) { function_token_position_ = pos; } |
| 2039 | int function_token_position() const { return function_token_position_; } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2040 | int start_position() const; |
| 2041 | int end_position() const; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2042 | int SourceSize() const { return end_position() - start_position(); } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2043 | bool is_expression() const { return IsExpression::decode(bitfield_); } |
| 2044 | bool is_anonymous() const { return IsAnonymous::decode(bitfield_); } |
| 2045 | bool is_classic_mode() const { return language_mode() == CLASSIC_MODE; } |
| 2046 | LanguageMode language_mode() const; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2047 | |
| 2048 | int materialized_literal_count() { return materialized_literal_count_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2049 | int expected_property_count() { return expected_property_count_; } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2050 | int handler_count() { return handler_count_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2051 | bool has_only_simple_this_property_assignments() { |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2052 | return HasOnlySimpleThisPropertyAssignments::decode(bitfield_); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2053 | } |
| 2054 | Handle<FixedArray> this_property_assignments() { |
| 2055 | return this_property_assignments_; |
| 2056 | } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2057 | int parameter_count() { return parameter_count_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2058 | |
| 2059 | bool AllowsLazyCompilation(); |
| 2060 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2061 | Handle<String> debug_name() const { |
| 2062 | if (name_->length() > 0) return name_; |
| 2063 | return inferred_name(); |
| 2064 | } |
| 2065 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 2066 | Handle<String> inferred_name() const { return inferred_name_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2067 | void set_inferred_name(Handle<String> inferred_name) { |
| 2068 | inferred_name_ = inferred_name; |
| 2069 | } |
| 2070 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2071 | bool pretenure() { return Pretenure::decode(bitfield_); } |
| 2072 | void set_pretenure() { bitfield_ |= Pretenure::encode(true); } |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 2073 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2074 | bool has_duplicate_parameters() { |
| 2075 | return HasDuplicateParameters::decode(bitfield_); |
| 2076 | } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2077 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2078 | bool is_function() { return IsFunction::decode(bitfield_) == kIsFunction; } |
| 2079 | |
| 2080 | int ast_node_count() { return ast_properties_.node_count(); } |
| 2081 | AstProperties::Flags* flags() { return ast_properties_.flags(); } |
| 2082 | void set_ast_properties(AstProperties* ast_properties) { |
| 2083 | ast_properties_ = *ast_properties; |
| 2084 | } |
| 2085 | |
| 2086 | protected: |
| 2087 | template<class> friend class AstNodeFactory; |
| 2088 | |
| 2089 | FunctionLiteral(Isolate* isolate, |
| 2090 | Handle<String> name, |
| 2091 | Scope* scope, |
| 2092 | ZoneList<Statement*>* body, |
| 2093 | int materialized_literal_count, |
| 2094 | int expected_property_count, |
| 2095 | int handler_count, |
| 2096 | bool has_only_simple_this_property_assignments, |
| 2097 | Handle<FixedArray> this_property_assignments, |
| 2098 | int parameter_count, |
| 2099 | Type type, |
| 2100 | ParameterFlag has_duplicate_parameters, |
| 2101 | IsFunctionFlag is_function) |
| 2102 | : Expression(isolate), |
| 2103 | name_(name), |
| 2104 | scope_(scope), |
| 2105 | body_(body), |
| 2106 | this_property_assignments_(this_property_assignments), |
| 2107 | inferred_name_(isolate->factory()->empty_string()), |
| 2108 | materialized_literal_count_(materialized_literal_count), |
| 2109 | expected_property_count_(expected_property_count), |
| 2110 | handler_count_(handler_count), |
| 2111 | parameter_count_(parameter_count), |
| 2112 | function_token_position_(RelocInfo::kNoPosition) { |
| 2113 | bitfield_ = |
| 2114 | HasOnlySimpleThisPropertyAssignments::encode( |
| 2115 | has_only_simple_this_property_assignments) | |
| 2116 | IsExpression::encode(type != DECLARATION) | |
| 2117 | IsAnonymous::encode(type == ANONYMOUS_EXPRESSION) | |
| 2118 | Pretenure::encode(false) | |
| 2119 | HasDuplicateParameters::encode(has_duplicate_parameters) | |
| 2120 | IsFunction::encode(is_function); |
| 2121 | } |
| 2122 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2123 | private: |
| 2124 | Handle<String> name_; |
| 2125 | Scope* scope_; |
| 2126 | ZoneList<Statement*>* body_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2127 | Handle<FixedArray> this_property_assignments_; |
| 2128 | Handle<String> inferred_name_; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2129 | AstProperties ast_properties_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2130 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2131 | int materialized_literal_count_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2132 | int expected_property_count_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2133 | int handler_count_; |
| 2134 | int parameter_count_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2135 | int function_token_position_; |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2136 | |
| 2137 | unsigned bitfield_; |
| 2138 | class HasOnlySimpleThisPropertyAssignments: public BitField<bool, 0, 1> {}; |
| 2139 | class IsExpression: public BitField<bool, 1, 1> {}; |
| 2140 | class IsAnonymous: public BitField<bool, 2, 1> {}; |
| 2141 | class Pretenure: public BitField<bool, 3, 1> {}; |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2142 | class HasDuplicateParameters: public BitField<ParameterFlag, 4, 1> {}; |
| 2143 | class IsFunction: public BitField<IsFunctionFlag, 5, 1> {}; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2144 | }; |
| 2145 | |
| 2146 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2147 | class SharedFunctionInfoLiteral: public Expression { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2148 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2149 | DECLARE_NODE_TYPE(SharedFunctionInfoLiteral) |
| 2150 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2151 | Handle<SharedFunctionInfo> shared_function_info() const { |
| 2152 | return shared_function_info_; |
| 2153 | } |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2154 | |
| 2155 | protected: |
| 2156 | template<class> friend class AstNodeFactory; |
| 2157 | |
| 2158 | SharedFunctionInfoLiteral( |
| 2159 | Isolate* isolate, |
| 2160 | Handle<SharedFunctionInfo> shared_function_info) |
| 2161 | : Expression(isolate), |
| 2162 | shared_function_info_(shared_function_info) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2163 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2164 | private: |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2165 | Handle<SharedFunctionInfo> shared_function_info_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2166 | }; |
| 2167 | |
| 2168 | |
| 2169 | class ThisFunction: public Expression { |
| 2170 | public: |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2171 | DECLARE_NODE_TYPE(ThisFunction) |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2172 | |
| 2173 | protected: |
| 2174 | template<class> friend class AstNodeFactory; |
| 2175 | |
| 2176 | explicit ThisFunction(Isolate* isolate): Expression(isolate) {} |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2177 | }; |
| 2178 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2179 | #undef DECLARE_NODE_TYPE |
| 2180 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2181 | |
| 2182 | // ---------------------------------------------------------------------------- |
| 2183 | // Regular expressions |
| 2184 | |
| 2185 | |
| 2186 | class RegExpVisitor BASE_EMBEDDED { |
| 2187 | public: |
| 2188 | virtual ~RegExpVisitor() { } |
| 2189 | #define MAKE_CASE(Name) \ |
| 2190 | virtual void* Visit##Name(RegExp##Name*, void* data) = 0; |
| 2191 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_CASE) |
| 2192 | #undef MAKE_CASE |
| 2193 | }; |
| 2194 | |
| 2195 | |
| 2196 | class RegExpTree: public ZoneObject { |
| 2197 | public: |
| 2198 | static const int kInfinity = kMaxInt; |
| 2199 | virtual ~RegExpTree() { } |
| 2200 | virtual void* Accept(RegExpVisitor* visitor, void* data) = 0; |
| 2201 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2202 | RegExpNode* on_success) = 0; |
| 2203 | virtual bool IsTextElement() { return false; } |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2204 | virtual bool IsAnchoredAtStart() { return false; } |
| 2205 | virtual bool IsAnchoredAtEnd() { return false; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2206 | virtual int min_match() = 0; |
| 2207 | virtual int max_match() = 0; |
| 2208 | // Returns the interval of registers used for captures within this |
| 2209 | // expression. |
| 2210 | virtual Interval CaptureRegisters() { return Interval::Empty(); } |
| 2211 | virtual void AppendToText(RegExpText* text); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 2212 | SmartArrayPointer<const char> ToString(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2213 | #define MAKE_ASTYPE(Name) \ |
| 2214 | virtual RegExp##Name* As##Name(); \ |
| 2215 | virtual bool Is##Name(); |
| 2216 | FOR_EACH_REG_EXP_TREE_TYPE(MAKE_ASTYPE) |
| 2217 | #undef MAKE_ASTYPE |
| 2218 | }; |
| 2219 | |
| 2220 | |
| 2221 | class RegExpDisjunction: public RegExpTree { |
| 2222 | public: |
| 2223 | explicit RegExpDisjunction(ZoneList<RegExpTree*>* alternatives); |
| 2224 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2225 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2226 | RegExpNode* on_success); |
| 2227 | virtual RegExpDisjunction* AsDisjunction(); |
| 2228 | virtual Interval CaptureRegisters(); |
| 2229 | virtual bool IsDisjunction(); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2230 | virtual bool IsAnchoredAtStart(); |
| 2231 | virtual bool IsAnchoredAtEnd(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2232 | virtual int min_match() { return min_match_; } |
| 2233 | virtual int max_match() { return max_match_; } |
| 2234 | ZoneList<RegExpTree*>* alternatives() { return alternatives_; } |
| 2235 | private: |
| 2236 | ZoneList<RegExpTree*>* alternatives_; |
| 2237 | int min_match_; |
| 2238 | int max_match_; |
| 2239 | }; |
| 2240 | |
| 2241 | |
| 2242 | class RegExpAlternative: public RegExpTree { |
| 2243 | public: |
| 2244 | explicit RegExpAlternative(ZoneList<RegExpTree*>* nodes); |
| 2245 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2246 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2247 | RegExpNode* on_success); |
| 2248 | virtual RegExpAlternative* AsAlternative(); |
| 2249 | virtual Interval CaptureRegisters(); |
| 2250 | virtual bool IsAlternative(); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2251 | virtual bool IsAnchoredAtStart(); |
| 2252 | virtual bool IsAnchoredAtEnd(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2253 | virtual int min_match() { return min_match_; } |
| 2254 | virtual int max_match() { return max_match_; } |
| 2255 | ZoneList<RegExpTree*>* nodes() { return nodes_; } |
| 2256 | private: |
| 2257 | ZoneList<RegExpTree*>* nodes_; |
| 2258 | int min_match_; |
| 2259 | int max_match_; |
| 2260 | }; |
| 2261 | |
| 2262 | |
| 2263 | class RegExpAssertion: public RegExpTree { |
| 2264 | public: |
| 2265 | enum Type { |
| 2266 | START_OF_LINE, |
| 2267 | START_OF_INPUT, |
| 2268 | END_OF_LINE, |
| 2269 | END_OF_INPUT, |
| 2270 | BOUNDARY, |
| 2271 | NON_BOUNDARY |
| 2272 | }; |
| 2273 | explicit RegExpAssertion(Type type) : type_(type) { } |
| 2274 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2275 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2276 | RegExpNode* on_success); |
| 2277 | virtual RegExpAssertion* AsAssertion(); |
| 2278 | virtual bool IsAssertion(); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2279 | virtual bool IsAnchoredAtStart(); |
| 2280 | virtual bool IsAnchoredAtEnd(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2281 | virtual int min_match() { return 0; } |
| 2282 | virtual int max_match() { return 0; } |
| 2283 | Type type() { return type_; } |
| 2284 | private: |
| 2285 | Type type_; |
| 2286 | }; |
| 2287 | |
| 2288 | |
| 2289 | class CharacterSet BASE_EMBEDDED { |
| 2290 | public: |
| 2291 | explicit CharacterSet(uc16 standard_set_type) |
| 2292 | : ranges_(NULL), |
| 2293 | standard_set_type_(standard_set_type) {} |
| 2294 | explicit CharacterSet(ZoneList<CharacterRange>* ranges) |
| 2295 | : ranges_(ranges), |
| 2296 | standard_set_type_(0) {} |
| 2297 | ZoneList<CharacterRange>* ranges(); |
| 2298 | uc16 standard_set_type() { return standard_set_type_; } |
| 2299 | void set_standard_set_type(uc16 special_set_type) { |
| 2300 | standard_set_type_ = special_set_type; |
| 2301 | } |
| 2302 | bool is_standard() { return standard_set_type_ != 0; } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2303 | void Canonicalize(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2304 | private: |
| 2305 | ZoneList<CharacterRange>* ranges_; |
| 2306 | // If non-zero, the value represents a standard set (e.g., all whitespace |
| 2307 | // characters) without having to expand the ranges. |
| 2308 | uc16 standard_set_type_; |
| 2309 | }; |
| 2310 | |
| 2311 | |
| 2312 | class RegExpCharacterClass: public RegExpTree { |
| 2313 | public: |
| 2314 | RegExpCharacterClass(ZoneList<CharacterRange>* ranges, bool is_negated) |
| 2315 | : set_(ranges), |
| 2316 | is_negated_(is_negated) { } |
| 2317 | explicit RegExpCharacterClass(uc16 type) |
| 2318 | : set_(type), |
| 2319 | is_negated_(false) { } |
| 2320 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2321 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2322 | RegExpNode* on_success); |
| 2323 | virtual RegExpCharacterClass* AsCharacterClass(); |
| 2324 | virtual bool IsCharacterClass(); |
| 2325 | virtual bool IsTextElement() { return true; } |
| 2326 | virtual int min_match() { return 1; } |
| 2327 | virtual int max_match() { return 1; } |
| 2328 | virtual void AppendToText(RegExpText* text); |
| 2329 | CharacterSet character_set() { return set_; } |
| 2330 | // TODO(lrn): Remove need for complex version if is_standard that |
| 2331 | // recognizes a mangled standard set and just do { return set_.is_special(); } |
| 2332 | bool is_standard(); |
| 2333 | // Returns a value representing the standard character set if is_standard() |
| 2334 | // returns true. |
| 2335 | // Currently used values are: |
| 2336 | // s : unicode whitespace |
| 2337 | // S : unicode non-whitespace |
| 2338 | // w : ASCII word character (digit, letter, underscore) |
| 2339 | // W : non-ASCII word character |
| 2340 | // d : ASCII digit |
| 2341 | // D : non-ASCII digit |
| 2342 | // . : non-unicode non-newline |
| 2343 | // * : All characters |
| 2344 | uc16 standard_type() { return set_.standard_set_type(); } |
| 2345 | ZoneList<CharacterRange>* ranges() { return set_.ranges(); } |
| 2346 | bool is_negated() { return is_negated_; } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2347 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2348 | private: |
| 2349 | CharacterSet set_; |
| 2350 | bool is_negated_; |
| 2351 | }; |
| 2352 | |
| 2353 | |
| 2354 | class RegExpAtom: public RegExpTree { |
| 2355 | public: |
| 2356 | explicit RegExpAtom(Vector<const uc16> data) : data_(data) { } |
| 2357 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2358 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2359 | RegExpNode* on_success); |
| 2360 | virtual RegExpAtom* AsAtom(); |
| 2361 | virtual bool IsAtom(); |
| 2362 | virtual bool IsTextElement() { return true; } |
| 2363 | virtual int min_match() { return data_.length(); } |
| 2364 | virtual int max_match() { return data_.length(); } |
| 2365 | virtual void AppendToText(RegExpText* text); |
| 2366 | Vector<const uc16> data() { return data_; } |
| 2367 | int length() { return data_.length(); } |
| 2368 | private: |
| 2369 | Vector<const uc16> data_; |
| 2370 | }; |
| 2371 | |
| 2372 | |
| 2373 | class RegExpText: public RegExpTree { |
| 2374 | public: |
| 2375 | RegExpText() : elements_(2), length_(0) {} |
| 2376 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2377 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2378 | RegExpNode* on_success); |
| 2379 | virtual RegExpText* AsText(); |
| 2380 | virtual bool IsText(); |
| 2381 | virtual bool IsTextElement() { return true; } |
| 2382 | virtual int min_match() { return length_; } |
| 2383 | virtual int max_match() { return length_; } |
| 2384 | virtual void AppendToText(RegExpText* text); |
| 2385 | void AddElement(TextElement elm) { |
| 2386 | elements_.Add(elm); |
| 2387 | length_ += elm.length(); |
Iain Merrick | 9ac36c9 | 2010-09-13 15:29:50 +0100 | [diff] [blame] | 2388 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2389 | ZoneList<TextElement>* elements() { return &elements_; } |
| 2390 | private: |
| 2391 | ZoneList<TextElement> elements_; |
| 2392 | int length_; |
| 2393 | }; |
| 2394 | |
| 2395 | |
| 2396 | class RegExpQuantifier: public RegExpTree { |
| 2397 | public: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2398 | enum Type { GREEDY, NON_GREEDY, POSSESSIVE }; |
| 2399 | RegExpQuantifier(int min, int max, Type type, RegExpTree* body) |
| 2400 | : body_(body), |
| 2401 | min_(min), |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2402 | max_(max), |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2403 | min_match_(min * body->min_match()), |
| 2404 | type_(type) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2405 | if (max > 0 && body->max_match() > kInfinity / max) { |
| 2406 | max_match_ = kInfinity; |
| 2407 | } else { |
| 2408 | max_match_ = max * body->max_match(); |
| 2409 | } |
| 2410 | } |
| 2411 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2412 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2413 | RegExpNode* on_success); |
| 2414 | static RegExpNode* ToNode(int min, |
| 2415 | int max, |
| 2416 | bool is_greedy, |
| 2417 | RegExpTree* body, |
| 2418 | RegExpCompiler* compiler, |
| 2419 | RegExpNode* on_success, |
| 2420 | bool not_at_start = false); |
| 2421 | virtual RegExpQuantifier* AsQuantifier(); |
| 2422 | virtual Interval CaptureRegisters(); |
| 2423 | virtual bool IsQuantifier(); |
| 2424 | virtual int min_match() { return min_match_; } |
| 2425 | virtual int max_match() { return max_match_; } |
| 2426 | int min() { return min_; } |
| 2427 | int max() { return max_; } |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2428 | bool is_possessive() { return type_ == POSSESSIVE; } |
| 2429 | bool is_non_greedy() { return type_ == NON_GREEDY; } |
| 2430 | bool is_greedy() { return type_ == GREEDY; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2431 | RegExpTree* body() { return body_; } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2432 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2433 | private: |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2434 | RegExpTree* body_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2435 | int min_; |
| 2436 | int max_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2437 | int min_match_; |
| 2438 | int max_match_; |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 2439 | Type type_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2440 | }; |
| 2441 | |
| 2442 | |
| 2443 | class RegExpCapture: public RegExpTree { |
| 2444 | public: |
| 2445 | explicit RegExpCapture(RegExpTree* body, int index) |
| 2446 | : body_(body), index_(index) { } |
| 2447 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2448 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2449 | RegExpNode* on_success); |
| 2450 | static RegExpNode* ToNode(RegExpTree* body, |
| 2451 | int index, |
| 2452 | RegExpCompiler* compiler, |
| 2453 | RegExpNode* on_success); |
| 2454 | virtual RegExpCapture* AsCapture(); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2455 | virtual bool IsAnchoredAtStart(); |
| 2456 | virtual bool IsAnchoredAtEnd(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2457 | virtual Interval CaptureRegisters(); |
| 2458 | virtual bool IsCapture(); |
| 2459 | virtual int min_match() { return body_->min_match(); } |
| 2460 | virtual int max_match() { return body_->max_match(); } |
| 2461 | RegExpTree* body() { return body_; } |
| 2462 | int index() { return index_; } |
| 2463 | static int StartRegister(int index) { return index * 2; } |
| 2464 | static int EndRegister(int index) { return index * 2 + 1; } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2465 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2466 | private: |
| 2467 | RegExpTree* body_; |
| 2468 | int index_; |
| 2469 | }; |
| 2470 | |
| 2471 | |
| 2472 | class RegExpLookahead: public RegExpTree { |
| 2473 | public: |
| 2474 | RegExpLookahead(RegExpTree* body, |
| 2475 | bool is_positive, |
| 2476 | int capture_count, |
| 2477 | int capture_from) |
| 2478 | : body_(body), |
| 2479 | is_positive_(is_positive), |
| 2480 | capture_count_(capture_count), |
| 2481 | capture_from_(capture_from) { } |
| 2482 | |
| 2483 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2484 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2485 | RegExpNode* on_success); |
| 2486 | virtual RegExpLookahead* AsLookahead(); |
| 2487 | virtual Interval CaptureRegisters(); |
| 2488 | virtual bool IsLookahead(); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 2489 | virtual bool IsAnchoredAtStart(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2490 | virtual int min_match() { return 0; } |
| 2491 | virtual int max_match() { return 0; } |
| 2492 | RegExpTree* body() { return body_; } |
| 2493 | bool is_positive() { return is_positive_; } |
| 2494 | int capture_count() { return capture_count_; } |
| 2495 | int capture_from() { return capture_from_; } |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 2496 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2497 | private: |
| 2498 | RegExpTree* body_; |
| 2499 | bool is_positive_; |
| 2500 | int capture_count_; |
| 2501 | int capture_from_; |
| 2502 | }; |
| 2503 | |
| 2504 | |
| 2505 | class RegExpBackReference: public RegExpTree { |
| 2506 | public: |
| 2507 | explicit RegExpBackReference(RegExpCapture* capture) |
| 2508 | : capture_(capture) { } |
| 2509 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2510 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2511 | RegExpNode* on_success); |
| 2512 | virtual RegExpBackReference* AsBackReference(); |
| 2513 | virtual bool IsBackReference(); |
| 2514 | virtual int min_match() { return 0; } |
| 2515 | virtual int max_match() { return capture_->max_match(); } |
| 2516 | int index() { return capture_->index(); } |
| 2517 | RegExpCapture* capture() { return capture_; } |
| 2518 | private: |
| 2519 | RegExpCapture* capture_; |
| 2520 | }; |
| 2521 | |
| 2522 | |
| 2523 | class RegExpEmpty: public RegExpTree { |
| 2524 | public: |
| 2525 | RegExpEmpty() { } |
| 2526 | virtual void* Accept(RegExpVisitor* visitor, void* data); |
| 2527 | virtual RegExpNode* ToNode(RegExpCompiler* compiler, |
| 2528 | RegExpNode* on_success); |
| 2529 | virtual RegExpEmpty* AsEmpty(); |
| 2530 | virtual bool IsEmpty(); |
| 2531 | virtual int min_match() { return 0; } |
| 2532 | virtual int max_match() { return 0; } |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame] | 2533 | static RegExpEmpty* GetInstance() { |
| 2534 | static RegExpEmpty* instance = ::new RegExpEmpty(); |
| 2535 | return instance; |
| 2536 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2537 | }; |
| 2538 | |
| 2539 | |
| 2540 | // ---------------------------------------------------------------------------- |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2541 | // Out-of-line inline constructors (to side-step cyclic dependencies). |
| 2542 | |
| 2543 | inline ModuleVariable::ModuleVariable(VariableProxy* proxy) |
| 2544 | : Module(proxy->interface()), |
| 2545 | proxy_(proxy) { |
| 2546 | } |
| 2547 | |
| 2548 | |
| 2549 | // ---------------------------------------------------------------------------- |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2550 | // Basic visitor |
| 2551 | // - leaf node visitors are abstract. |
| 2552 | |
| 2553 | class AstVisitor BASE_EMBEDDED { |
| 2554 | public: |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2555 | AstVisitor() : isolate_(Isolate::Current()), stack_overflow_(false) { } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2556 | virtual ~AstVisitor() { } |
| 2557 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2558 | // Stack overflow check and dynamic dispatch. |
| 2559 | void Visit(AstNode* node) { if (!CheckStackOverflow()) node->Accept(this); } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2560 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2561 | // Iteration left-to-right. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 2562 | virtual void VisitDeclarations(ZoneList<Declaration*>* declarations); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2563 | virtual void VisitStatements(ZoneList<Statement*>* statements); |
| 2564 | virtual void VisitExpressions(ZoneList<Expression*>* expressions); |
| 2565 | |
| 2566 | // Stack overflow tracking support. |
| 2567 | bool HasStackOverflow() const { return stack_overflow_; } |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 2568 | bool CheckStackOverflow(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2569 | |
| 2570 | // If a stack-overflow exception is encountered when visiting a |
| 2571 | // node, calling SetStackOverflow will make sure that the visitor |
| 2572 | // bails out without visiting more nodes. |
| 2573 | void SetStackOverflow() { stack_overflow_ = true; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2574 | void ClearStackOverflow() { stack_overflow_ = false; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2575 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 2576 | // Individual AST nodes. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2577 | #define DEF_VISIT(type) \ |
| 2578 | virtual void Visit##type(type* node) = 0; |
| 2579 | AST_NODE_LIST(DEF_VISIT) |
| 2580 | #undef DEF_VISIT |
| 2581 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2582 | protected: |
| 2583 | Isolate* isolate() { return isolate_; } |
| 2584 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2585 | private: |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2586 | Isolate* isolate_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2587 | bool stack_overflow_; |
| 2588 | }; |
| 2589 | |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 2590 | |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame^] | 2591 | // ---------------------------------------------------------------------------- |
| 2592 | // Construction time visitor. |
| 2593 | |
| 2594 | class AstConstructionVisitor BASE_EMBEDDED { |
| 2595 | public: |
| 2596 | AstConstructionVisitor() { } |
| 2597 | |
| 2598 | AstProperties* ast_properties() { return &properties_; } |
| 2599 | |
| 2600 | private: |
| 2601 | template<class> friend class AstNodeFactory; |
| 2602 | |
| 2603 | // Node visitors. |
| 2604 | #define DEF_VISIT(type) \ |
| 2605 | void Visit##type(type* node); |
| 2606 | AST_NODE_LIST(DEF_VISIT) |
| 2607 | #undef DEF_VISIT |
| 2608 | |
| 2609 | void increase_node_count() { properties_.add_node_count(1); } |
| 2610 | void add_flag(AstPropertiesFlag flag) { properties_.flags()->Add(flag); } |
| 2611 | |
| 2612 | AstProperties properties_; |
| 2613 | }; |
| 2614 | |
| 2615 | |
| 2616 | class AstNullVisitor BASE_EMBEDDED { |
| 2617 | public: |
| 2618 | // Node visitors. |
| 2619 | #define DEF_VISIT(type) \ |
| 2620 | void Visit##type(type* node) {} |
| 2621 | AST_NODE_LIST(DEF_VISIT) |
| 2622 | #undef DEF_VISIT |
| 2623 | }; |
| 2624 | |
| 2625 | |
| 2626 | |
| 2627 | // ---------------------------------------------------------------------------- |
| 2628 | // AstNode factory |
| 2629 | |
| 2630 | template<class Visitor> |
| 2631 | class AstNodeFactory BASE_EMBEDDED { |
| 2632 | public: |
| 2633 | explicit AstNodeFactory(Isolate* isolate) |
| 2634 | : isolate_(isolate), |
| 2635 | zone_(isolate_->zone()) { } |
| 2636 | |
| 2637 | Visitor* visitor() { return &visitor_; } |
| 2638 | |
| 2639 | #define VISIT_AND_RETURN(NodeType, node) \ |
| 2640 | visitor_.Visit##NodeType((node)); \ |
| 2641 | return node; |
| 2642 | |
| 2643 | VariableDeclaration* NewVariableDeclaration(VariableProxy* proxy, |
| 2644 | VariableMode mode, |
| 2645 | Scope* scope) { |
| 2646 | VariableDeclaration* decl = |
| 2647 | new(zone_) VariableDeclaration(proxy, mode, scope); |
| 2648 | VISIT_AND_RETURN(VariableDeclaration, decl) |
| 2649 | } |
| 2650 | |
| 2651 | FunctionDeclaration* NewFunctionDeclaration(VariableProxy* proxy, |
| 2652 | VariableMode mode, |
| 2653 | FunctionLiteral* fun, |
| 2654 | Scope* scope) { |
| 2655 | FunctionDeclaration* decl = |
| 2656 | new(zone_) FunctionDeclaration(proxy, mode, fun, scope); |
| 2657 | VISIT_AND_RETURN(FunctionDeclaration, decl) |
| 2658 | } |
| 2659 | |
| 2660 | ModuleDeclaration* NewModuleDeclaration(VariableProxy* proxy, |
| 2661 | Module* module, |
| 2662 | Scope* scope) { |
| 2663 | ModuleDeclaration* decl = |
| 2664 | new(zone_) ModuleDeclaration(proxy, module, scope); |
| 2665 | VISIT_AND_RETURN(ModuleDeclaration, decl) |
| 2666 | } |
| 2667 | |
| 2668 | ImportDeclaration* NewImportDeclaration(VariableProxy* proxy, |
| 2669 | Module* module, |
| 2670 | Scope* scope) { |
| 2671 | ImportDeclaration* decl = |
| 2672 | new(zone_) ImportDeclaration(proxy, module, scope); |
| 2673 | VISIT_AND_RETURN(ImportDeclaration, decl) |
| 2674 | } |
| 2675 | |
| 2676 | ExportDeclaration* NewExportDeclaration(VariableProxy* proxy, |
| 2677 | Scope* scope) { |
| 2678 | ExportDeclaration* decl = |
| 2679 | new(zone_) ExportDeclaration(proxy, scope); |
| 2680 | VISIT_AND_RETURN(ExportDeclaration, decl) |
| 2681 | } |
| 2682 | |
| 2683 | ModuleLiteral* NewModuleLiteral(Block* body, Interface* interface) { |
| 2684 | ModuleLiteral* module = new(zone_) ModuleLiteral(body, interface); |
| 2685 | VISIT_AND_RETURN(ModuleLiteral, module) |
| 2686 | } |
| 2687 | |
| 2688 | ModuleVariable* NewModuleVariable(VariableProxy* proxy) { |
| 2689 | ModuleVariable* module = new(zone_) ModuleVariable(proxy); |
| 2690 | VISIT_AND_RETURN(ModuleVariable, module) |
| 2691 | } |
| 2692 | |
| 2693 | ModulePath* NewModulePath(Module* origin, Handle<String> name) { |
| 2694 | ModulePath* module = new(zone_) ModulePath(origin, name); |
| 2695 | VISIT_AND_RETURN(ModulePath, module) |
| 2696 | } |
| 2697 | |
| 2698 | ModuleUrl* NewModuleUrl(Handle<String> url) { |
| 2699 | ModuleUrl* module = new(zone_) ModuleUrl(url); |
| 2700 | VISIT_AND_RETURN(ModuleUrl, module) |
| 2701 | } |
| 2702 | |
| 2703 | Block* NewBlock(ZoneStringList* labels, |
| 2704 | int capacity, |
| 2705 | bool is_initializer_block) { |
| 2706 | Block* block = new(zone_) Block( |
| 2707 | isolate_, labels, capacity, is_initializer_block); |
| 2708 | VISIT_AND_RETURN(Block, block) |
| 2709 | } |
| 2710 | |
| 2711 | #define STATEMENT_WITH_LABELS(NodeType) \ |
| 2712 | NodeType* New##NodeType(ZoneStringList* labels) { \ |
| 2713 | NodeType* stmt = new(zone_) NodeType(isolate_, labels); \ |
| 2714 | VISIT_AND_RETURN(NodeType, stmt); \ |
| 2715 | } |
| 2716 | STATEMENT_WITH_LABELS(DoWhileStatement) |
| 2717 | STATEMENT_WITH_LABELS(WhileStatement) |
| 2718 | STATEMENT_WITH_LABELS(ForStatement) |
| 2719 | STATEMENT_WITH_LABELS(ForInStatement) |
| 2720 | STATEMENT_WITH_LABELS(SwitchStatement) |
| 2721 | #undef STATEMENT_WITH_LABELS |
| 2722 | |
| 2723 | ExpressionStatement* NewExpressionStatement(Expression* expression) { |
| 2724 | ExpressionStatement* stmt = new(zone_) ExpressionStatement(expression); |
| 2725 | VISIT_AND_RETURN(ExpressionStatement, stmt) |
| 2726 | } |
| 2727 | |
| 2728 | ContinueStatement* NewContinueStatement(IterationStatement* target) { |
| 2729 | ContinueStatement* stmt = new(zone_) ContinueStatement(target); |
| 2730 | VISIT_AND_RETURN(ContinueStatement, stmt) |
| 2731 | } |
| 2732 | |
| 2733 | BreakStatement* NewBreakStatement(BreakableStatement* target) { |
| 2734 | BreakStatement* stmt = new(zone_) BreakStatement(target); |
| 2735 | VISIT_AND_RETURN(BreakStatement, stmt) |
| 2736 | } |
| 2737 | |
| 2738 | ReturnStatement* NewReturnStatement(Expression* expression) { |
| 2739 | ReturnStatement* stmt = new(zone_) ReturnStatement(expression); |
| 2740 | VISIT_AND_RETURN(ReturnStatement, stmt) |
| 2741 | } |
| 2742 | |
| 2743 | WithStatement* NewWithStatement(Expression* expression, |
| 2744 | Statement* statement) { |
| 2745 | WithStatement* stmt = new(zone_) WithStatement(expression, statement); |
| 2746 | VISIT_AND_RETURN(WithStatement, stmt) |
| 2747 | } |
| 2748 | |
| 2749 | IfStatement* NewIfStatement(Expression* condition, |
| 2750 | Statement* then_statement, |
| 2751 | Statement* else_statement) { |
| 2752 | IfStatement* stmt = new(zone_) IfStatement( |
| 2753 | isolate_, condition, then_statement, else_statement); |
| 2754 | VISIT_AND_RETURN(IfStatement, stmt) |
| 2755 | } |
| 2756 | |
| 2757 | TryCatchStatement* NewTryCatchStatement(int index, |
| 2758 | Block* try_block, |
| 2759 | Scope* scope, |
| 2760 | Variable* variable, |
| 2761 | Block* catch_block) { |
| 2762 | TryCatchStatement* stmt = new(zone_) TryCatchStatement( |
| 2763 | index, try_block, scope, variable, catch_block); |
| 2764 | VISIT_AND_RETURN(TryCatchStatement, stmt) |
| 2765 | } |
| 2766 | |
| 2767 | TryFinallyStatement* NewTryFinallyStatement(int index, |
| 2768 | Block* try_block, |
| 2769 | Block* finally_block) { |
| 2770 | TryFinallyStatement* stmt = |
| 2771 | new(zone_) TryFinallyStatement(index, try_block, finally_block); |
| 2772 | VISIT_AND_RETURN(TryFinallyStatement, stmt) |
| 2773 | } |
| 2774 | |
| 2775 | DebuggerStatement* NewDebuggerStatement() { |
| 2776 | DebuggerStatement* stmt = new(zone_) DebuggerStatement(); |
| 2777 | VISIT_AND_RETURN(DebuggerStatement, stmt) |
| 2778 | } |
| 2779 | |
| 2780 | EmptyStatement* NewEmptyStatement() { |
| 2781 | return new(zone_) EmptyStatement(); |
| 2782 | } |
| 2783 | |
| 2784 | Literal* NewLiteral(Handle<Object> handle) { |
| 2785 | Literal* lit = new(zone_) Literal(isolate_, handle); |
| 2786 | VISIT_AND_RETURN(Literal, lit) |
| 2787 | } |
| 2788 | |
| 2789 | Literal* NewNumberLiteral(double number) { |
| 2790 | return NewLiteral(isolate_->factory()->NewNumber(number, TENURED)); |
| 2791 | } |
| 2792 | |
| 2793 | ObjectLiteral* NewObjectLiteral( |
| 2794 | Handle<FixedArray> constant_properties, |
| 2795 | ZoneList<ObjectLiteral::Property*>* properties, |
| 2796 | int literal_index, |
| 2797 | bool is_simple, |
| 2798 | bool fast_elements, |
| 2799 | int depth, |
| 2800 | bool has_function) { |
| 2801 | ObjectLiteral* lit = new(zone_) ObjectLiteral( |
| 2802 | isolate_, constant_properties, properties, literal_index, |
| 2803 | is_simple, fast_elements, depth, has_function); |
| 2804 | VISIT_AND_RETURN(ObjectLiteral, lit) |
| 2805 | } |
| 2806 | |
| 2807 | ObjectLiteral::Property* NewObjectLiteralProperty(bool is_getter, |
| 2808 | FunctionLiteral* value) { |
| 2809 | ObjectLiteral::Property* prop = |
| 2810 | new(zone_) ObjectLiteral::Property(is_getter, value); |
| 2811 | prop->set_key(NewLiteral(value->name())); |
| 2812 | return prop; // Not an AST node, will not be visited. |
| 2813 | } |
| 2814 | |
| 2815 | RegExpLiteral* NewRegExpLiteral(Handle<String> pattern, |
| 2816 | Handle<String> flags, |
| 2817 | int literal_index) { |
| 2818 | RegExpLiteral* lit = |
| 2819 | new(zone_) RegExpLiteral(isolate_, pattern, flags, literal_index); |
| 2820 | VISIT_AND_RETURN(RegExpLiteral, lit); |
| 2821 | } |
| 2822 | |
| 2823 | ArrayLiteral* NewArrayLiteral(Handle<FixedArray> constant_elements, |
| 2824 | ZoneList<Expression*>* values, |
| 2825 | int literal_index, |
| 2826 | bool is_simple, |
| 2827 | int depth) { |
| 2828 | ArrayLiteral* lit = new(zone_) ArrayLiteral( |
| 2829 | isolate_, constant_elements, values, literal_index, is_simple, depth); |
| 2830 | VISIT_AND_RETURN(ArrayLiteral, lit) |
| 2831 | } |
| 2832 | |
| 2833 | VariableProxy* NewVariableProxy(Variable* var) { |
| 2834 | VariableProxy* proxy = new(zone_) VariableProxy(isolate_, var); |
| 2835 | VISIT_AND_RETURN(VariableProxy, proxy) |
| 2836 | } |
| 2837 | |
| 2838 | VariableProxy* NewVariableProxy(Handle<String> name, |
| 2839 | bool is_this, |
| 2840 | int position = RelocInfo::kNoPosition, |
| 2841 | Interface* interface = |
| 2842 | Interface::NewValue()) { |
| 2843 | VariableProxy* proxy = |
| 2844 | new(zone_) VariableProxy(isolate_, name, is_this, position, interface); |
| 2845 | VISIT_AND_RETURN(VariableProxy, proxy) |
| 2846 | } |
| 2847 | |
| 2848 | Property* NewProperty(Expression* obj, Expression* key, int pos) { |
| 2849 | Property* prop = new(zone_) Property(isolate_, obj, key, pos); |
| 2850 | VISIT_AND_RETURN(Property, prop) |
| 2851 | } |
| 2852 | |
| 2853 | Call* NewCall(Expression* expression, |
| 2854 | ZoneList<Expression*>* arguments, |
| 2855 | int pos) { |
| 2856 | Call* call = new(zone_) Call(isolate_, expression, arguments, pos); |
| 2857 | VISIT_AND_RETURN(Call, call) |
| 2858 | } |
| 2859 | |
| 2860 | CallNew* NewCallNew(Expression* expression, |
| 2861 | ZoneList<Expression*>* arguments, |
| 2862 | int pos) { |
| 2863 | CallNew* call = new(zone_) CallNew(isolate_, expression, arguments, pos); |
| 2864 | VISIT_AND_RETURN(CallNew, call) |
| 2865 | } |
| 2866 | |
| 2867 | CallRuntime* NewCallRuntime(Handle<String> name, |
| 2868 | const Runtime::Function* function, |
| 2869 | ZoneList<Expression*>* arguments) { |
| 2870 | CallRuntime* call = |
| 2871 | new(zone_) CallRuntime(isolate_, name, function, arguments); |
| 2872 | VISIT_AND_RETURN(CallRuntime, call) |
| 2873 | } |
| 2874 | |
| 2875 | UnaryOperation* NewUnaryOperation(Token::Value op, |
| 2876 | Expression* expression, |
| 2877 | int pos) { |
| 2878 | UnaryOperation* node = |
| 2879 | new(zone_) UnaryOperation(isolate_, op, expression, pos); |
| 2880 | VISIT_AND_RETURN(UnaryOperation, node) |
| 2881 | } |
| 2882 | |
| 2883 | BinaryOperation* NewBinaryOperation(Token::Value op, |
| 2884 | Expression* left, |
| 2885 | Expression* right, |
| 2886 | int pos) { |
| 2887 | BinaryOperation* node = |
| 2888 | new(zone_) BinaryOperation(isolate_, op, left, right, pos); |
| 2889 | VISIT_AND_RETURN(BinaryOperation, node) |
| 2890 | } |
| 2891 | |
| 2892 | CountOperation* NewCountOperation(Token::Value op, |
| 2893 | bool is_prefix, |
| 2894 | Expression* expr, |
| 2895 | int pos) { |
| 2896 | CountOperation* node = |
| 2897 | new(zone_) CountOperation(isolate_, op, is_prefix, expr, pos); |
| 2898 | VISIT_AND_RETURN(CountOperation, node) |
| 2899 | } |
| 2900 | |
| 2901 | CompareOperation* NewCompareOperation(Token::Value op, |
| 2902 | Expression* left, |
| 2903 | Expression* right, |
| 2904 | int pos) { |
| 2905 | CompareOperation* node = |
| 2906 | new(zone_) CompareOperation(isolate_, op, left, right, pos); |
| 2907 | VISIT_AND_RETURN(CompareOperation, node) |
| 2908 | } |
| 2909 | |
| 2910 | Conditional* NewConditional(Expression* condition, |
| 2911 | Expression* then_expression, |
| 2912 | Expression* else_expression, |
| 2913 | int then_expression_position, |
| 2914 | int else_expression_position) { |
| 2915 | Conditional* cond = new(zone_) Conditional( |
| 2916 | isolate_, condition, then_expression, else_expression, |
| 2917 | then_expression_position, else_expression_position); |
| 2918 | VISIT_AND_RETURN(Conditional, cond) |
| 2919 | } |
| 2920 | |
| 2921 | Assignment* NewAssignment(Token::Value op, |
| 2922 | Expression* target, |
| 2923 | Expression* value, |
| 2924 | int pos) { |
| 2925 | Assignment* assign = |
| 2926 | new(zone_) Assignment(isolate_, op, target, value, pos); |
| 2927 | assign->Init(isolate_, this); |
| 2928 | VISIT_AND_RETURN(Assignment, assign) |
| 2929 | } |
| 2930 | |
| 2931 | Throw* NewThrow(Expression* exception, int pos) { |
| 2932 | Throw* t = new(zone_) Throw(isolate_, exception, pos); |
| 2933 | VISIT_AND_RETURN(Throw, t) |
| 2934 | } |
| 2935 | |
| 2936 | FunctionLiteral* NewFunctionLiteral( |
| 2937 | Handle<String> name, |
| 2938 | Scope* scope, |
| 2939 | ZoneList<Statement*>* body, |
| 2940 | int materialized_literal_count, |
| 2941 | int expected_property_count, |
| 2942 | int handler_count, |
| 2943 | bool has_only_simple_this_property_assignments, |
| 2944 | Handle<FixedArray> this_property_assignments, |
| 2945 | int parameter_count, |
| 2946 | FunctionLiteral::ParameterFlag has_duplicate_parameters, |
| 2947 | FunctionLiteral::Type type, |
| 2948 | FunctionLiteral::IsFunctionFlag is_function) { |
| 2949 | FunctionLiteral* lit = new(zone_) FunctionLiteral( |
| 2950 | isolate_, name, scope, body, |
| 2951 | materialized_literal_count, expected_property_count, handler_count, |
| 2952 | has_only_simple_this_property_assignments, this_property_assignments, |
| 2953 | parameter_count, type, has_duplicate_parameters, is_function); |
| 2954 | // Top-level literal doesn't count for the AST's properties. |
| 2955 | if (is_function == FunctionLiteral::kIsFunction) { |
| 2956 | visitor_.VisitFunctionLiteral(lit); |
| 2957 | } |
| 2958 | return lit; |
| 2959 | } |
| 2960 | |
| 2961 | SharedFunctionInfoLiteral* NewSharedFunctionInfoLiteral( |
| 2962 | Handle<SharedFunctionInfo> shared_function_info) { |
| 2963 | SharedFunctionInfoLiteral* lit = |
| 2964 | new(zone_) SharedFunctionInfoLiteral(isolate_, shared_function_info); |
| 2965 | VISIT_AND_RETURN(SharedFunctionInfoLiteral, lit) |
| 2966 | } |
| 2967 | |
| 2968 | ThisFunction* NewThisFunction() { |
| 2969 | ThisFunction* fun = new(zone_) ThisFunction(isolate_); |
| 2970 | VISIT_AND_RETURN(ThisFunction, fun) |
| 2971 | } |
| 2972 | |
| 2973 | #undef VISIT_AND_RETURN |
| 2974 | |
| 2975 | private: |
| 2976 | Isolate* isolate_; |
| 2977 | Zone* zone_; |
| 2978 | Visitor visitor_; |
| 2979 | }; |
| 2980 | |
| 2981 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2982 | } } // namespace v8::internal |
| 2983 | |
| 2984 | #endif // V8_AST_H_ |