| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| %{ |
| |
| #include "AST.h" |
| #include "Annotation.h" |
| #include "ArrayType.h" |
| #include "CompoundType.h" |
| #include "ConstantExpression.h" |
| #include "EnumType.h" |
| #include "Interface.h" |
| #include "Location.h" |
| #include "Method.h" |
| #include "RefType.h" |
| #include "Scope.h" |
| #include "TypeDef.h" |
| #include "VectorType.h" |
| |
| #include "hidl-gen_y.h" |
| |
| #include <android-base/logging.h> |
| #include <hidl-util/FQName.h> |
| #include <hidl-util/StringHelper.h> |
| #include <stdio.h> |
| |
| using namespace android; |
| |
| extern int yylex(yy::parser::semantic_type*, yy::parser::location_type*, void*); |
| |
| void enterScope(AST* /* ast */, Scope** scope, Scope* container) { |
| CHECK(container->parent() == (*scope)); |
| *scope = container; |
| } |
| |
| void leaveScope(AST* ast, Scope** scope) { |
| CHECK((*scope) != ast->getRootScope()); |
| *scope = (*scope)->parent(); |
| } |
| |
| ::android::Location convertYYLoc(const yy::parser::location_type &loc) { |
| return ::android::Location( |
| ::android::Position(*(loc.begin.filename), loc.begin.line, loc.begin.column), |
| ::android::Position(*(loc.end.filename), loc.end.line, loc.end.column) |
| ); |
| } |
| |
| bool isValidInterfaceField(const std::string& identifier, std::string *errorMsg) { |
| static const std::vector<std::string> reserved({ |
| // Injected names to C++ interfaces by auto-generated code |
| "isRemote", "descriptor", "hidlStaticBlock", "onTransact", |
| "castFrom", "Proxy", "Stub", "getService", |
| |
| // Injected names to Java interfaces by auto-generated code |
| "asInterface", "castFrom", "getService", "toString", |
| |
| // Inherited methods from IBase is detected in addMethod. Not added here |
| // because we need hidl-gen to compile IBase. |
| |
| // Inherited names by interfaces from IInterface / IBinder |
| "onAsBinder", "asBinder", "queryLocalInterface", "getInterfaceDescriptor", "isBinderAlive", |
| "pingBinder", "dump", "transact", "checkSubclass", "attachObject", "findObject", |
| "detachObject", "localBinder", "remoteBinder", "mImpl", |
| |
| // Inherited names from HidlInstrumentor |
| "InstrumentationEvent", "configureInstrumentation", "registerInstrumentationCallbacks", |
| "isInstrumentationLib", "mInstrumentationCal1lbacks", "mEnableInstrumentation", |
| "mInstrumentationLibPackage", "mInterfaceName", |
| |
| // Collide with names in BsFoo |
| "mImpl", "addOnewayTask", "mOnewayQueue", |
| |
| // Inherited names from Java IHwInterface |
| "asBinder", |
| }); |
| if (std::find(reserved.begin(), reserved.end(), identifier) != reserved.end()) { |
| *errorMsg = identifier + " cannot be a name inside an interface"; |
| return false; |
| } |
| return true; |
| } |
| |
| bool isValidStructField(const std::string& identifier, std::string *errorMsg) { |
| static const std::vector<std::string> reserved({ |
| // Injected names to structs and unions by auto-generated code |
| "readEmbeddedFromParcel", "writeEmbeddedToParcel", "readVectorFromParcel", |
| "writeVectorToParcel", "writeEmbeddedToBlob", |
| }); |
| if (std::find(reserved.begin(), reserved.end(), identifier) != reserved.end()) { |
| *errorMsg = identifier + " cannot be a name inside an struct or union"; |
| return false; |
| } |
| return true; |
| } |
| |
| bool isValidIdentifier(const std::string& identifier, std::string *errorMsg) { |
| static const std::vector<std::string> keywords({ |
| "uint8_t", "uint16_t", "uint32_t", "uint64_t", |
| "int8_t", "int16_t", "int32_t", "int64_t", "bool", "float", "double", |
| "interface", "struct", "union", "string", "vec", "enum", "ref", "handle", |
| "package", "import", "typedef", "generates", "oneway", "extends", |
| "fmq_sync", "fmq_unsync", |
| }); |
| static const std::vector<std::string> cppKeywords({ |
| "alignas", "alignof", "and", "and_eq", "asm", "atomic_cancel", "atomic_commit", |
| "atomic_noexcept", "auto", "bitand", "bitor", "bool", "break", "case", "catch", |
| "char", "char16_t", "char32_t", "class", "compl", "concept", "const", "constexpr", |
| "const_cast", "continue", "decltype", "default", "delete", "do", "double", |
| "dynamic_cast", "else", "enum", "explicit", "export", "extern", "false", "float", |
| "for", "friend", "goto", "if", "inline", "int", "import", "long", "module", "mutable", |
| "namespace", "new", "noexcept", "not", "not_eq", "nullptr", "operator", "or", "or_eq", |
| "private", "protected", "public", "register", "reinterpret_cast", "requires", "return", |
| "short", "signed", "sizeof", "static", "static_assert", "static_cast", "struct", |
| "switch", "synchronized", "template", "this", "thread_local", "throw", "true", "try", |
| "typedef", "typeid", "typename", "union", "unsigned", "using", "virtual", "void", |
| "volatile", "wchar_t", "while", "xor", "xor_eq", |
| }); |
| static const std::vector<std::string> javaKeywords({ |
| "abstract", "continue", "for", "new", "switch", "assert", "default", "goto", "package", |
| "synchronized", "boolean", "do", "if", "private", "this", "break", "double", |
| "implements", "protected", "throw", "byte", "else", "import", "public", "throws", |
| "case", "enum", "instanceof", "return", "transient", "catch", "extends", "int", |
| "short", "try", "char", "final", "interface", "static", "void", "class", "finally", |
| "long", "strictfp", "volatile", "const", "float", "native", "super", "while", |
| }); |
| static const std::vector<std::string> cppCollide({ |
| "size_t", "offsetof", |
| }); |
| |
| // errors |
| if (std::find(keywords.begin(), keywords.end(), identifier) != keywords.end()) { |
| *errorMsg = identifier + " is a HIDL keyword " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (std::find(cppKeywords.begin(), cppKeywords.end(), identifier) != cppKeywords.end()) { |
| *errorMsg = identifier + " is a C++ keyword " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (std::find(javaKeywords.begin(), javaKeywords.end(), identifier) != javaKeywords.end()) { |
| *errorMsg = identifier + " is a Java keyword " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (std::find(cppCollide.begin(), cppCollide.end(), identifier) != cppCollide.end()) { |
| *errorMsg = identifier + " collides with reserved names in C++ code " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (StringHelper::StartsWith(identifier, "_hidl_")) { |
| *errorMsg = identifier + " starts with _hidl_ " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (StringHelper::StartsWith(identifier, "hidl_")) { |
| *errorMsg = identifier + " starts with hidl_ " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (StringHelper::EndsWith(identifier, "_cb")) { |
| *errorMsg = identifier + " ends with _cb " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| // Return true if identifier is an acceptable name for an UDT. |
| bool isValidTypeName(const std::string& identifier, std::string *errorMsg) { |
| if (!isValidIdentifier(identifier, errorMsg)) { |
| return false; |
| } |
| |
| if (identifier == "toString") { |
| *errorMsg = identifier + " is not a valid type name"; |
| return false; |
| } |
| |
| return true; |
| } |
| |
| %} |
| |
| %initial-action { |
| // Initialize the initial location. |
| @$.begin.filename = @$.end.filename = |
| const_cast<std::string *>(&ast->getFilename()); |
| } |
| |
| %parse-param { void* scanner } |
| %parse-param { android::AST* const ast } |
| %parse-param { android::Scope** const scope } |
| %lex-param { void* scanner } |
| %pure-parser |
| %glr-parser |
| %skeleton "glr.cc" |
| |
| %expect-rr 0 |
| %error-verbose |
| |
| %token<str> ENUM "keyword `enum`" |
| %token<str> EXTENDS "keyword `extends`" |
| %token<str> FQNAME "fully-qualified name" |
| %token<str> GENERATES "keyword `generates`" |
| %token<str> IDENTIFIER "identifier" |
| %token<str> IMPORT "keyword `import`" |
| %token<str> INTEGER "integer value" |
| %token<str> FLOAT "float value" |
| %token<str> INTERFACE "keyword `interface`" |
| %token<str> PACKAGE "keyword `package`" |
| %token<type> TYPE "type" |
| %token<str> STRUCT "keyword `struct`" |
| %token<str> STRING_LITERAL "string literal" |
| %token<str> TYPEDEF "keyword `typedef`" |
| %token<str> UNION "keyword `union`" |
| %token<templatedType> TEMPLATED "templated type" |
| %token<void> ONEWAY "keyword `oneway`" |
| |
| /* Operator precedence and associativity, as per |
| * http://en.cppreference.com/w/cpp/language/operator_precedence */ |
| /* Precedence level 15 ternary operator */ |
| %right '?' ':' |
| /* Precedence level 13 - 14, LTR, logical operators*/ |
| %left LOGICAL_OR |
| %left LOGICAL_AND |
| /* Precedence level 10 - 12, LTR, bitwise operators*/ |
| %left '|' |
| %left '^' |
| %left '&' |
| /* Precedence level 9, LTR */ |
| %left EQUALITY NEQ |
| /* Precedence level 8, LTR */ |
| %left '<' '>' LEQ GEQ |
| /* Precedence level 7, LTR */ |
| %left LSHIFT RSHIFT |
| /* Precedence level 6, LTR */ |
| %left '+' '-' |
| /* Precedence level 5, LTR */ |
| %left '*' '/' '%' |
| /* Precedence level 3, RTL; but we have to use %left here */ |
| %left UNARY_MINUS UNARY_PLUS '!' '~' |
| |
| %type<str> error_stmt error |
| %type<str> package |
| %type<fqName> fqname |
| %type<referenceToType> fqtype |
| %type<str> valid_identifier valid_type_name |
| |
| %type<referenceToType> type enum_storage_type |
| %type<referenceToType> array_type_base |
| %type<arrayType> array_type |
| %type<referenceToInterface> opt_extends |
| %type<type> type_declaration type_declaration_body interface_declaration typedef_declaration |
| %type<type> named_struct_or_union_declaration named_enum_declaration |
| %type<type> compound_declaration annotated_compound_declaration |
| |
| %type<field> field_declaration |
| %type<fields> field_declarations struct_or_union_body |
| %type<constantExpression> const_expr |
| %type<enumValue> enum_value |
| %type<enumValues> enum_values enum_declaration_body |
| %type<typedVars> typed_vars |
| %type<typedVar> typed_var |
| %type<method> method_declaration |
| %type<compoundStyle> struct_or_union_keyword |
| %type<stringVec> annotation_string_values annotation_string_value |
| %type<constExprVec> annotation_const_expr_values annotation_const_expr_value |
| %type<annotationParam> annotation_param |
| %type<annotationParams> opt_annotation_params annotation_params |
| %type<annotation> annotation |
| %type<annotations> opt_annotations |
| |
| %start program |
| |
| %union { |
| const char *str; |
| android::Type* type; |
| android::Reference<android::Type>* referenceToType; |
| android::Reference<android::Interface>* referenceToInterface; |
| android::ArrayType *arrayType; |
| android::TemplatedType *templatedType; |
| android::FQName *fqName; |
| android::CompoundType *compoundType; |
| android::NamedReference<android::Type>* field; |
| std::vector<android::NamedReference<android::Type>*>* fields; |
| android::EnumValue *enumValue; |
| android::ConstantExpression *constantExpression; |
| std::vector<android::EnumValue *> *enumValues; |
| android::NamedReference<android::Type>* typedVar; |
| android::TypedVarVector *typedVars; |
| android::Method *method; |
| android::CompoundType::Style compoundStyle; |
| std::vector<std::string> *stringVec; |
| std::vector<android::ConstantExpression *> *constExprVec; |
| android::AnnotationParam *annotationParam; |
| android::AnnotationParamVector *annotationParams; |
| android::Annotation *annotation; |
| std::vector<android::Annotation *> *annotations; |
| } |
| |
| %% |
| |
| program |
| : package |
| imports |
| type_declarations |
| ; |
| |
| valid_identifier |
| : IDENTIFIER |
| { |
| std::string errorMsg; |
| if (!isValidIdentifier($1, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @1 << "\n"; |
| YYERROR; |
| } |
| $$ = $1; |
| } |
| ; |
| |
| valid_type_name |
| : IDENTIFIER |
| { |
| std::string errorMsg; |
| if (!isValidTypeName($1, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @1 << "\n"; |
| YYERROR; |
| } |
| $$ = $1; |
| } |
| ; |
| |
| opt_annotations |
| : /* empty */ |
| { |
| $$ = new std::vector<Annotation *>; |
| } |
| | opt_annotations annotation |
| { |
| $$ = $1; |
| $$->push_back($2); |
| } |
| ; |
| |
| annotation |
| : '@' IDENTIFIER opt_annotation_params |
| { |
| $$ = new Annotation($2, $3); |
| } |
| ; |
| |
| opt_annotation_params |
| : /* empty */ |
| { |
| $$ = new AnnotationParamVector; |
| } |
| | '(' annotation_params ')' |
| { |
| $$ = $2; |
| } |
| ; |
| |
| annotation_params |
| : annotation_param |
| { |
| $$ = new AnnotationParamVector; |
| $$->push_back($1); |
| } |
| | annotation_params ',' annotation_param |
| { |
| $$ = $1; |
| $$->push_back($3); |
| } |
| ; |
| |
| annotation_param |
| : IDENTIFIER '=' annotation_string_value |
| { |
| $$ = new StringAnnotationParam($1, $3); |
| } |
| | IDENTIFIER '=' annotation_const_expr_value |
| { |
| $$ = new ConstantExpressionAnnotationParam($1, $3); |
| } |
| ; |
| |
| annotation_string_value |
| : STRING_LITERAL |
| { |
| $$ = new std::vector<std::string>; |
| $$->push_back($1); |
| } |
| | '{' annotation_string_values '}' { $$ = $2; } |
| ; |
| |
| annotation_string_values |
| : STRING_LITERAL |
| { |
| $$ = new std::vector<std::string>; |
| $$->push_back($1); |
| } |
| | annotation_string_values ',' STRING_LITERAL |
| { |
| $$ = $1; |
| $$->push_back($3); |
| } |
| ; |
| |
| annotation_const_expr_value |
| : const_expr |
| { |
| $$ = new std::vector<ConstantExpression *>; |
| $$->push_back($1); |
| } |
| | '{' annotation_const_expr_values '}' { $$ = $2; } |
| ; |
| |
| annotation_const_expr_values |
| : const_expr |
| { |
| $$ = new std::vector<ConstantExpression *>; |
| $$->push_back($1); |
| } |
| | annotation_const_expr_values ',' const_expr |
| { |
| $$ = $1; |
| $$->push_back($3); |
| } |
| ; |
| |
| error_stmt |
| : error ';' |
| { |
| $$ = $1; |
| ast->addSyntaxError(); |
| } |
| ; |
| |
| require_semicolon |
| : ';' |
| | /* empty */ |
| { |
| std::cerr << "ERROR: missing ; at " << @$ << "\n"; |
| ast->addSyntaxError(); |
| } |
| ; |
| |
| fqname |
| : FQNAME |
| { |
| $$ = new FQName($1); |
| if(!$$->isValid()) { |
| std::cerr << "ERROR: FQName '" << $1 << "' is not valid at " |
| << @1 |
| << ".\n"; |
| YYERROR; |
| } |
| } |
| | valid_type_name |
| { |
| $$ = new FQName($1); |
| if(!$$->isValid()) { |
| std::cerr << "ERROR: FQName '" << $1 << "' is not valid at " |
| << @1 |
| << ".\n"; |
| YYERROR; |
| } |
| } |
| ; |
| |
| fqtype |
| : fqname |
| { |
| $$ = new Reference<Type>(*$1, convertYYLoc(@1)); |
| |
| Type* type = ast->lookupType($$->getLookupFqName(), *scope); |
| if ($$ == NULL) { |
| std::cerr << "ERROR: Failed to lookup type '" << $1->string() << "' at " |
| << @1 |
| << "\n"; |
| |
| YYERROR; |
| } |
| |
| $$->set(type); |
| } |
| | TYPE |
| { |
| $$ = new Reference<Type>($1, convertYYLoc(@1)); |
| } |
| ; |
| |
| package |
| : PACKAGE FQNAME require_semicolon |
| { |
| if (!ast->setPackage($2)) { |
| std::cerr << "ERROR: Malformed package identifier '" |
| << $2 |
| << "' at " |
| << @2 |
| << "\n"; |
| |
| YYERROR; |
| } |
| } |
| | error |
| { |
| std::cerr << "ERROR: Package statement must be at the beginning of the file (" << @1 << ")\n"; |
| $$ = $1; |
| ast->addSyntaxError(); |
| } |
| ; |
| |
| import_stmt |
| : IMPORT FQNAME require_semicolon |
| { |
| if (!ast->addImport($2)) { |
| std::cerr << "ERROR: Unable to import '" << $2 << "' at " << @2 |
| << "\n"; |
| ast->addSyntaxError(); |
| } |
| } |
| | IMPORT valid_type_name require_semicolon |
| { |
| if (!ast->addImport($2)) { |
| std::cerr << "ERROR: Unable to import '" << $2 << "' at " << @2 |
| << "\n"; |
| ast->addSyntaxError(); |
| } |
| } |
| | IMPORT error_stmt |
| ; |
| |
| |
| imports |
| : /* empty */ |
| | imports import_stmt |
| ; |
| |
| opt_extends |
| : /* empty */ |
| { |
| $$ = nullptr; |
| } |
| | EXTENDS fqtype |
| { |
| // TODO(b/31827278) |
| // While deleting lookup calls, move this check |
| if (!(*$2)->isInterface()) { |
| std::cerr << "ERROR: You can only extend interfaces. at " << @2 |
| << "\n"; |
| |
| YYERROR; |
| } |
| |
| $$ = new Reference<Interface>( |
| static_cast<Interface*>($2->get()), $2->location()); |
| } |
| ; |
| |
| interface_declarations |
| : /* empty */ |
| | interface_declarations type_declaration |
| { |
| CHECK((*scope)->isInterface()); |
| |
| std::string errorMsg; |
| if ($2 != nullptr && $2->isNamedType() && |
| !isValidInterfaceField(static_cast<NamedType*>($2)->localName().c_str(), |
| &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| } |
| | interface_declarations method_declaration |
| { |
| CHECK((*scope)->isInterface()); |
| |
| std::string errorMsg; |
| if ($2 != nullptr && |
| !isValidInterfaceField($2->name().c_str(), &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| |
| if ($2 != nullptr) { |
| Interface *iface = static_cast<Interface*>(*scope); |
| if (!iface->addMethod($2)) { |
| std::cerr << "ERROR: Unable to add method '" << $2->name() |
| << "' at " << @2 << "\n"; |
| |
| YYERROR; |
| } |
| } |
| // ignore if $2 is nullptr (from error recovery) |
| } |
| ; |
| |
| type_declarations |
| : /* empty */ |
| | error_stmt |
| | type_declarations type_declaration |
| ; |
| |
| type_declaration |
| : opt_annotations type_declaration_body |
| { |
| if (!$2->isTypeDef()) { |
| CHECK($2->isScope()); |
| static_cast<Scope*>($2)->setAnnotations($1); |
| } else if (!$1->empty()) { |
| // Since typedefs are always resolved to their target it makes |
| // little sense to annotate them and have their annotations |
| // impose semantics other than their target type. |
| std::cerr << "ERROR: typedefs cannot be annotated. at " << @2 |
| << "\n"; |
| |
| YYERROR; |
| } |
| $$ = $2; |
| } |
| ; |
| |
| type_declaration_body |
| : named_struct_or_union_declaration require_semicolon |
| | named_enum_declaration require_semicolon |
| | typedef_declaration require_semicolon |
| | interface_declaration require_semicolon |
| ; |
| |
| interface_declaration |
| : INTERFACE valid_type_name opt_extends |
| { |
| Reference<Interface>* superType = $3; |
| bool isIBase = ast->package().package() == gIBasePackageFqName.string(); |
| |
| if (isIBase) { |
| if (superType != nullptr) { |
| std::cerr << "ERROR: IBase must not extend any interface. at " << @3 |
| << "\n"; |
| |
| YYERROR; |
| } |
| superType = new Reference<Interface>(); |
| } else { |
| if (!ast->addImport(gIBaseFqName.string().c_str())) { |
| std::cerr << "ERROR: Unable to automatically import '" |
| << gIBaseFqName.string() |
| << "' at " << @$ |
| << "\n"; |
| YYERROR; |
| } |
| |
| if (superType == nullptr) { |
| superType = new Reference<Interface>(gIBaseFqName, convertYYLoc(@$)); |
| Type* type = ast->lookupType(superType->getLookupFqName(), *scope); |
| CHECK(type != nullptr && type->isInterface()); |
| superType->set(static_cast<Interface*>(type)); |
| } |
| } |
| |
| if ($2[0] != 'I') { |
| std::cerr << "ERROR: All interface names must start with an 'I' " |
| << "prefix. at " << @2 << "\n"; |
| |
| YYERROR; |
| } |
| |
| if (*scope != ast->getRootScope()) { |
| std::cerr << "ERROR: All interface must declared in " |
| << "global scope. at " << @2 << "\n"; |
| |
| YYERROR; |
| } |
| |
| Interface* iface = new Interface( |
| $2, convertYYLoc(@2), *scope, *superType); |
| |
| // Register interface immediately so it can be referenced inside |
| // definition. |
| std::string errorMsg; |
| if (!ast->addScopedType(iface, &errorMsg, *scope)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @2 << "\n"; |
| YYERROR; |
| } |
| |
| enterScope(ast, scope, iface); |
| } |
| '{' interface_declarations '}' |
| { |
| CHECK((*scope)->isInterface()); |
| |
| Interface *iface = static_cast<Interface *>(*scope); |
| CHECK(iface->addAllReservedMethods()); |
| |
| leaveScope(ast, scope); |
| |
| $$ = iface; |
| } |
| ; |
| |
| typedef_declaration |
| : TYPEDEF type valid_type_name |
| { |
| // The reason we wrap the given type in a TypeDef is simply to suppress |
| // emitting any type definitions later on, since this is just an alias |
| // to a type defined elsewhere. |
| TypeDef* typeDef = new TypeDef($3, convertYYLoc(@2), *scope, *$2); |
| |
| std::string errorMsg; |
| if (!ast->addScopedType(typeDef, &errorMsg, *scope)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @3 << "\n"; |
| YYERROR; |
| } |
| |
| $$ = typeDef; |
| } |
| ; |
| |
| const_expr |
| : INTEGER { $$ = new LiteralConstantExpression($1); } |
| | fqname |
| { |
| if(!$1->isValidValueName()) { |
| std::cerr << "ERROR: '" << $1->string() |
| << "' does not refer to an enum value at " |
| << @1 << ".\n"; |
| YYERROR; |
| } |
| |
| if($1->isIdentifier()) { |
| std::string identifier = $1->name(); |
| LocalIdentifier *iden = (*scope)->lookupIdentifier(identifier); |
| if(!iden) { |
| std::cerr << "ERROR: identifier " << $1->string() |
| << " could not be found at " << @1 << ".\n"; |
| YYERROR; |
| } |
| $$ = new ReferenceConstantExpression( |
| Reference<LocalIdentifier>(iden, convertYYLoc(@1)), $1->string()); |
| } else { |
| std::string errorMsg; |
| EnumValue* v = ast->lookupEnumValue(*$1, &errorMsg, *scope); |
| if(v == nullptr) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @1 << ".\n"; |
| YYERROR; |
| } |
| |
| $$ = new ReferenceConstantExpression( |
| Reference<LocalIdentifier>(v, convertYYLoc(@1)), $1->string()); |
| } |
| } |
| | const_expr '?' const_expr ':' const_expr |
| { |
| $$ = new TernaryConstantExpression($1, $3, $5); |
| } |
| | const_expr LOGICAL_OR const_expr { $$ = new BinaryConstantExpression($1, "||", $3); } |
| | const_expr LOGICAL_AND const_expr { $$ = new BinaryConstantExpression($1, "&&", $3); } |
| | const_expr '|' const_expr { $$ = new BinaryConstantExpression($1, "|" , $3); } |
| | const_expr '^' const_expr { $$ = new BinaryConstantExpression($1, "^" , $3); } |
| | const_expr '&' const_expr { $$ = new BinaryConstantExpression($1, "&" , $3); } |
| | const_expr EQUALITY const_expr { $$ = new BinaryConstantExpression($1, "==", $3); } |
| | const_expr NEQ const_expr { $$ = new BinaryConstantExpression($1, "!=", $3); } |
| | const_expr '<' const_expr { $$ = new BinaryConstantExpression($1, "<" , $3); } |
| | const_expr '>' const_expr { $$ = new BinaryConstantExpression($1, ">" , $3); } |
| | const_expr LEQ const_expr { $$ = new BinaryConstantExpression($1, "<=", $3); } |
| | const_expr GEQ const_expr { $$ = new BinaryConstantExpression($1, ">=", $3); } |
| | const_expr LSHIFT const_expr { $$ = new BinaryConstantExpression($1, "<<", $3); } |
| | const_expr RSHIFT const_expr { $$ = new BinaryConstantExpression($1, ">>", $3); } |
| | const_expr '+' const_expr { $$ = new BinaryConstantExpression($1, "+" , $3); } |
| | const_expr '-' const_expr { $$ = new BinaryConstantExpression($1, "-" , $3); } |
| | const_expr '*' const_expr { $$ = new BinaryConstantExpression($1, "*" , $3); } |
| | const_expr '/' const_expr { $$ = new BinaryConstantExpression($1, "/" , $3); } |
| | const_expr '%' const_expr { $$ = new BinaryConstantExpression($1, "%" , $3); } |
| | '+' const_expr %prec UNARY_PLUS { $$ = new UnaryConstantExpression("+", $2); } |
| | '-' const_expr %prec UNARY_MINUS { $$ = new UnaryConstantExpression("-", $2); } |
| | '!' const_expr { $$ = new UnaryConstantExpression("!", $2); } |
| | '~' const_expr { $$ = new UnaryConstantExpression("~", $2); } |
| | '(' const_expr ')' { $$ = $2; } |
| | '(' error ')' |
| { |
| ast->addSyntaxError(); |
| // to avoid segfaults |
| $$ = ConstantExpression::Zero(ScalarType::KIND_INT32).release(); |
| } |
| ; |
| |
| method_declaration |
| : error_stmt { $$ = nullptr; } |
| | opt_annotations valid_identifier '(' typed_vars ')' require_semicolon |
| { |
| $$ = new Method($2 /* name */, |
| $4 /* args */, |
| new std::vector<NamedReference<Type>*> /* results */, |
| false /* oneway */, |
| $1 /* annotations */, |
| convertYYLoc(@$)); |
| } |
| | opt_annotations ONEWAY valid_identifier '(' typed_vars ')' require_semicolon |
| { |
| $$ = new Method($3 /* name */, |
| $5 /* args */, |
| new std::vector<NamedReference<Type>*> /* results */, |
| true /* oneway */, |
| $1 /* annotations */, |
| convertYYLoc(@$)); |
| } |
| | opt_annotations valid_identifier '(' typed_vars ')' GENERATES '(' typed_vars ')' require_semicolon |
| { |
| $$ = new Method($2 /* name */, |
| $4 /* args */, |
| $8 /* results */, |
| false /* oneway */, |
| $1 /* annotations */, |
| convertYYLoc(@$)); |
| } |
| ; |
| |
| typed_vars |
| : /* empty */ |
| { |
| $$ = new TypedVarVector(); |
| } |
| | typed_var |
| { |
| $$ = new TypedVarVector(); |
| if (!$$->add($1)) { |
| std::cerr << "ERROR: duplicated argument or result name " |
| << $1->name() << " at " << @1 << "\n"; |
| ast->addSyntaxError(); |
| } |
| } |
| | typed_vars ',' typed_var |
| { |
| $$ = $1; |
| if (!$$->add($3)) { |
| std::cerr << "ERROR: duplicated argument or result name " |
| << $3->name() << " at " << @3 << "\n"; |
| ast->addSyntaxError(); |
| } |
| } |
| ; |
| |
| typed_var : type valid_identifier { $$ = new NamedReference<Type>($2, *$1); } |
| ; |
| |
| |
| struct_or_union_keyword |
| : STRUCT { $$ = CompoundType::STYLE_STRUCT; } |
| | UNION { $$ = CompoundType::STYLE_UNION; } |
| ; |
| |
| named_struct_or_union_declaration |
| : struct_or_union_keyword valid_type_name |
| { |
| CompoundType *container = new CompoundType($1, $2, convertYYLoc(@2), *scope); |
| enterScope(ast, scope, container); |
| } |
| struct_or_union_body |
| { |
| CHECK((*scope)->isCompoundType()); |
| CompoundType *container = static_cast<CompoundType *>(*scope); |
| container->setFields($4); |
| |
| leaveScope(ast, scope); |
| |
| std::string errorMsg; |
| if (!ast->addScopedType(container, &errorMsg, *scope)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @2 << "\n"; |
| YYERROR; |
| } |
| |
| $$ = container; |
| } |
| ; |
| |
| struct_or_union_body |
| : '{' field_declarations '}' { $$ = $2; } |
| ; |
| |
| field_declarations |
| : /* empty */ { $$ = new std::vector<NamedReference<Type>*>; } |
| | field_declarations field_declaration |
| { |
| $$ = $1; |
| |
| // Compound declaration or error |
| if ($2 != nullptr) { |
| $$->push_back($2); |
| } |
| } |
| ; |
| |
| field_declaration |
| : error_stmt { $$ = nullptr; } |
| | type valid_identifier require_semicolon |
| { |
| CHECK((*scope)->isCompoundType()); |
| |
| std::string errorMsg; |
| if (static_cast<CompoundType *>(*scope)->style() == CompoundType::STYLE_STRUCT && |
| !isValidStructField($2, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| $$ = new NamedReference<Type>($2, *$1); |
| } |
| | annotated_compound_declaration ';' |
| { |
| CHECK((*scope)->isCompoundType()); |
| |
| std::string errorMsg; |
| if (static_cast<CompoundType *>(*scope)->style() == CompoundType::STYLE_STRUCT && |
| $1 != nullptr && $1->isNamedType() && |
| !isValidStructField(static_cast<NamedType*>($1)->localName().c_str(), &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| // Returns fields only |
| $$ = nullptr; |
| } |
| ; |
| |
| annotated_compound_declaration |
| : opt_annotations compound_declaration |
| { |
| CHECK($2->isScope()); |
| static_cast<Scope*>($2)->setAnnotations($1); |
| $$ = $2; |
| } |
| ; |
| |
| compound_declaration |
| : named_struct_or_union_declaration { $$ = $1; } |
| | named_enum_declaration { $$ = $1; } |
| ; |
| |
| enum_storage_type |
| : ':' fqtype { $$ = $2; } |
| ; |
| |
| opt_comma |
| : /* empty */ |
| | ',' |
| ; |
| |
| named_enum_declaration |
| : ENUM valid_type_name enum_storage_type |
| { |
| enterScope(ast, scope, new EnumType($2, convertYYLoc(@2), *$3, *scope)); |
| } |
| enum_declaration_body |
| { |
| CHECK((*scope)->isEnum()); |
| |
| EnumType *enumType = static_cast<EnumType *>(*scope); |
| leaveScope(ast, scope); |
| |
| std::string errorMsg; |
| if (!ast->addScopedType(enumType, &errorMsg, *scope)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @2 << "\n"; |
| YYERROR; |
| } |
| |
| $$ = enumType; |
| } |
| ; |
| |
| enum_declaration_body |
| : '{' enum_values opt_comma '}' { $$ = $2; } |
| ; |
| |
| enum_value |
| : valid_identifier |
| { |
| $$ = new EnumValue($1 /* name */, nullptr /* value */, convertYYLoc(@$)); |
| } |
| | valid_identifier '=' const_expr |
| { |
| $$ = new EnumValue($1 /* name */, $3 /* value */, convertYYLoc(@$)); |
| } |
| ; |
| |
| enum_values |
| : /* empty */ |
| { /* do nothing */ } |
| | enum_value |
| { |
| CHECK((*scope)->isEnum()); |
| static_cast<EnumType *>(*scope)->addValue($1); |
| } |
| | enum_values ',' enum_value |
| { |
| CHECK((*scope)->isEnum()); |
| static_cast<EnumType *>(*scope)->addValue($3); |
| } |
| | error ',' enum_value |
| { |
| ast->addSyntaxError(); |
| |
| CHECK((*scope)->isEnum()); |
| static_cast<EnumType *>(*scope)->addValue($3); |
| } |
| | enum_values ',' error ',' enum_value |
| { |
| ast->addSyntaxError(); |
| |
| CHECK((*scope)->isEnum()); |
| static_cast<EnumType *>(*scope)->addValue($5); |
| } |
| ; |
| |
| array_type_base |
| : fqtype { $$ = $1; } |
| | TEMPLATED '<' type '>' |
| { |
| $1->setElementType(*$3); |
| $$ = new Reference<Type>($1, convertYYLoc(@1)); |
| } |
| | TEMPLATED '<' TEMPLATED '<' type RSHIFT |
| { |
| $3->setElementType(*$5); |
| $1->setElementType(Reference<Type>($3, convertYYLoc(@3))); |
| $$ = new Reference<Type>($1, convertYYLoc(@1)); |
| } |
| ; |
| |
| array_type |
| : array_type_base '[' const_expr ']' |
| { |
| Reference<Type> type = *$1; |
| |
| if (type.isResolved() && type->isArray()) { |
| $$ = new ArrayType(static_cast<ArrayType*>(type.get()), $3); |
| } else { |
| $$ = new ArrayType(type, $3); |
| } |
| } |
| | array_type '[' const_expr ']' |
| { |
| $$ = $1; |
| $$->appendDimension($3); |
| } |
| ; |
| |
| type |
| : array_type_base { $$ = $1; } |
| | array_type { $$ = new Reference<Type>($1, convertYYLoc(@1)); } |
| | annotated_compound_declaration |
| { |
| $$ = new Reference<Type>($1, convertYYLoc(@1)); |
| } |
| | INTERFACE |
| { |
| // "interface" is a synonym of android.hidl.base@1.0::IBase |
| $$ = new Reference<Type>(gIBaseFqName, convertYYLoc(@1)); |
| Type* type = ast->lookupType($$->getLookupFqName(), *scope); |
| if (type == nullptr) { |
| std::cerr << "ERROR: Cannot find " |
| << gIBaseFqName.string() |
| << " at " << @1 << "\n"; |
| |
| YYERROR; |
| } |
| $$->set(type); |
| } |
| ; |
| |
| %% |
| |
| void yy::parser::error( |
| const yy::parser::location_type &where, |
| const std::string &errstr) { |
| std::cerr << "ERROR: " << errstr << " at " << where << "\n"; |
| } |
| |