jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 1 | // Copyright 2013 the V8 project authors. All rights reserved. |
| 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_TYPING_H_ |
| 29 | #define V8_TYPING_H_ |
| 30 | |
| 31 | #include "v8.h" |
| 32 | |
| 33 | #include "allocation.h" |
| 34 | #include "ast.h" |
| 35 | #include "compiler.h" |
| 36 | #include "type-info.h" |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 37 | #include "types.h" |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 38 | #include "effects.h" |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 39 | #include "zone.h" |
| 40 | #include "scopes.h" |
| 41 | |
| 42 | namespace v8 { |
| 43 | namespace internal { |
| 44 | |
| 45 | |
| 46 | class AstTyper: public AstVisitor { |
| 47 | public: |
danno@chromium.org | 4172848 | 2013-06-12 22:31:22 +0000 | [diff] [blame] | 48 | static void Run(CompilationInfo* info); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 49 | |
| 50 | void* operator new(size_t size, Zone* zone) { |
| 51 | return zone->New(static_cast<int>(size)); |
| 52 | } |
| 53 | void operator delete(void* pointer, Zone* zone) { } |
| 54 | void operator delete(void* pointer) { } |
| 55 | |
| 56 | DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); |
| 57 | |
| 58 | private: |
| 59 | explicit AstTyper(CompilationInfo* info); |
| 60 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 61 | static const int kNoVar = INT_MIN; |
| 62 | typedef v8::internal::Effects<int, kNoVar> Effects; |
| 63 | typedef v8::internal::NestedEffects<int, kNoVar> Store; |
| 64 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 65 | CompilationInfo* info_; |
| 66 | TypeFeedbackOracle oracle_; |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 67 | Store store_; |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 68 | |
| 69 | TypeFeedbackOracle* oracle() { return &oracle_; } |
| 70 | Zone* zone() const { return info_->zone(); } |
| 71 | |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 72 | void NarrowType(Expression* e, Bounds b) { |
| 73 | e->set_bounds(Bounds::Both(e->bounds(), b, isolate_)); |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 74 | } |
danno@chromium.org | 169691d | 2013-07-15 08:01:13 +0000 | [diff] [blame] | 75 | void NarrowLowerType(Expression* e, Handle<Type> t) { |
| 76 | e->set_bounds(Bounds::NarrowLower(e->bounds(), t, isolate_)); |
danno@chromium.org | bee5199 | 2013-07-10 14:57:15 +0000 | [diff] [blame] | 77 | } |
mstarzinger@chromium.org | 1510d58 | 2013-06-28 14:00:48 +0000 | [diff] [blame] | 78 | |
danno@chromium.org | 5940060 | 2013-08-13 17:09:37 +0000 | [diff] [blame] | 79 | Effects EnterEffects() { |
| 80 | store_ = store_.Push(); |
| 81 | return store_.Top(); |
| 82 | } |
| 83 | void ExitEffects() { store_ = store_.Pop(); } |
| 84 | |
| 85 | int variable_index(Variable* var) { |
| 86 | return var->IsStackLocal() ? var->index() : |
| 87 | var->IsParameter() ? -var->index() : kNoVar; |
| 88 | } |
| 89 | |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 90 | void VisitDeclarations(ZoneList<Declaration*>* declarations); |
| 91 | void VisitStatements(ZoneList<Statement*>* statements); |
| 92 | |
| 93 | #define DECLARE_VISIT(type) virtual void Visit##type(type* node); |
| 94 | AST_NODE_LIST(DECLARE_VISIT) |
| 95 | #undef DECLARE_VISIT |
| 96 | |
| 97 | DISALLOW_COPY_AND_ASSIGN(AstTyper); |
| 98 | }; |
| 99 | |
| 100 | } } // namespace v8::internal |
| 101 | |
| 102 | #endif // V8_TYPING_H_ |