| /* |
| * 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 "Annotation.h" |
| #include "AST.h" |
| #include "ArrayType.h" |
| #include "CompoundType.h" |
| #include "ConstantExpression.h" |
| #include "EnumType.h" |
| #include "Interface.h" |
| #include "Location.h" |
| #include "Method.h" |
| #include "VectorType.h" |
| #include "RefType.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 *); |
| |
| #define scanner ast->scanner() |
| |
| ::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 char *identifier, std::string *errorMsg) { |
| static const std::vector<std::string> reserved({ |
| // Injected names to interfaces by auto-generated code |
| "isRemote", "descriptor", "hidlStaticBlock", "onTransact", |
| "castFrom", "Proxy", "Stub", |
| |
| // 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", |
| }); |
| std::string idstr(identifier); |
| if (std::find(reserved.begin(), reserved.end(), idstr) != reserved.end()) { |
| *errorMsg = idstr + " cannot be a name inside an interface"; |
| return false; |
| } |
| return true; |
| } |
| |
| bool isValidStructField(const char *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", |
| }); |
| std::string idstr(identifier); |
| if (std::find(reserved.begin(), reserved.end(), idstr) != reserved.end()) { |
| *errorMsg = idstr + " cannot be a name inside an struct or union"; |
| return false; |
| } |
| return true; |
| } |
| |
| bool isValidIdentifier(const char *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", |
| "DECLARE_SERVICE_MANAGER_INTERACTIONS", "IMPLEMENT_HWBINDER_META_INTERFACE", |
| "IMPLEMENT_SERVICE_MANAGER_INTERACTIONS" |
| }); |
| static const std::vector<std::string> hidlReserved({ |
| // Part of HidlSupport |
| "hidl_string", "hidl_vec", "hidl_array", "hidl_version", "toBinder", "castInterface", |
| "make_hidl_version" |
| }); |
| |
| // errors |
| std::string idstr(identifier); |
| if (std::find(keywords.begin(), keywords.end(), idstr) != keywords.end()) { |
| *errorMsg = idstr + " is a HIDL keyword " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (std::find(cppKeywords.begin(), cppKeywords.end(), idstr) != cppKeywords.end()) { |
| *errorMsg = idstr + " is a C++ keyword " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (std::find(javaKeywords.begin(), javaKeywords.end(), idstr) != javaKeywords.end()) { |
| *errorMsg = idstr + " is a Java keyword " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (std::find(cppCollide.begin(), cppCollide.end(), idstr) != cppCollide.end()) { |
| *errorMsg = idstr + " collides with reserved names in C++ code " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (StringHelper::StartsWith(idstr, "_hidl_")) { |
| *errorMsg = idstr + " starts with _hidl_ " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| if (StringHelper::EndsWith(idstr, "_cb")) { |
| *errorMsg = idstr + " ends with _cb " |
| "and is therefore not a valid identifier"; |
| return false; |
| } |
| |
| // warnings |
| if (std::find(hidlReserved.begin(), hidlReserved.end(), idstr) != hidlReserved.end()) { |
| *errorMsg = idstr + " is a name reserved by HIDL and should be avoided"; |
| } |
| return true; |
| } |
| |
| %} |
| |
| %initial-action { |
| // Initialize the initial location. |
| @$.begin.filename = @$.end.filename = |
| const_cast<std::string *>(&ast->getFilename()); |
| } |
| |
| %parse-param { android::AST *ast } |
| %lex-param { void *scanner } |
| %pure-parser |
| %glr-parser |
| %skeleton "glr.cc" |
| |
| %expect-rr 0 |
| |
| %token<str> ENUM |
| %token<str> EXTENDS |
| %token<str> FQNAME |
| %token<str> GENERATES |
| %token<str> IDENTIFIER |
| %token<str> IMPORT |
| %token<str> INTEGER |
| %token<str> FLOAT |
| %token<str> INTERFACE |
| %token<str> PACKAGE |
| %token<type> TYPE |
| %token<str> STRUCT |
| %token<str> STRING_LITERAL |
| %token<str> TYPEDEF |
| %token<str> UNION |
| %token<templatedType> TEMPLATED |
| %token<void> 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 opt_error_stmt error |
| %type<str> package |
| %type<fqName> fqname |
| %type<type> fqtype |
| %type<str> valid_identifier |
| |
| %type<type> type enum_storage_type |
| %type<type> array_type_base |
| %type<arrayType> array_type |
| %type<type> 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::ArrayType *arrayType; |
| android::TemplatedType *templatedType; |
| android::FQName *fqName; |
| android::CompoundType *compoundType; |
| android::CompoundField *field; |
| std::vector<android::CompoundField *> *fields; |
| android::EnumValue *enumValue; |
| android::ConstantExpression *constantExpression; |
| std::vector<android::EnumValue *> *enumValues; |
| android::TypedVar *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; |
| } |
| |
| %% |
| |
| valid_identifier |
| : IDENTIFIER |
| { |
| std::string errorMsg; |
| if (!isValidIdentifier($1, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @1 << "\n"; |
| YYERROR; |
| } |
| if (!errorMsg.empty()) { |
| std::cerr << "WARNING: " << errorMsg << " at " << @1 << "\n"; |
| } |
| $$ = $1; |
| } |
| ; |
| |
| opt_annotations |
| : /* empty */ |
| { |
| $$ = 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 AnnotationParam($1, $3); |
| } |
| | IDENTIFIER '=' annotation_const_expr_value |
| { |
| $$ = new AnnotationParam($1, $3); |
| } |
| ; |
| |
| annotation_string_value |
| : STRING_LITERAL |
| { |
| $$ = 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(); |
| // std::cerr << "WARNING: skipping errors until " << @2 << ".\n"; |
| } |
| ; |
| |
| opt_error_stmt |
| : /* empty */ { $$ = NULL; } |
| | error_stmt { $$ = $1; } |
| ; |
| |
| require_semicolon |
| : ';' |
| | /* empty */ |
| { |
| std::cerr << "ERROR: missing ; at " << @$ << "\n"; |
| ast->addSyntaxError(); |
| } |
| ; |
| |
| program |
| : opt_error_stmt |
| package |
| imports |
| body |
| ; |
| |
| fqname |
| : FQNAME |
| { |
| $$ = new FQName($1); |
| if(!$$->isValid()) { |
| std::cerr << "ERROR: FQName '" << $1 << "' is not valid at " |
| << @1 |
| << ".\n"; |
| YYERROR; |
| } |
| } |
| | valid_identifier |
| { |
| $$ = new FQName($1); |
| if(!$$->isValid()) { |
| std::cerr << "ERROR: FQName '" << $1 << "' is not valid at " |
| << @1 |
| << ".\n"; |
| YYERROR; |
| } |
| } |
| ; |
| |
| fqtype |
| : fqname |
| { |
| $$ = ast->lookupType(*($1)); |
| if ($$ == NULL) { |
| std::cerr << "ERROR: Failed to lookup type '" << $1->string() << "' at " |
| << @1 |
| << "\n"; |
| |
| YYERROR; |
| } |
| } |
| | TYPE |
| ; |
| |
| package |
| : PACKAGE FQNAME require_semicolon |
| { |
| if (!ast->setPackage($2)) { |
| std::cerr << "ERROR: Malformed package identifier '" |
| << $2 |
| << "' at " |
| << @2 |
| << "\n"; |
| |
| YYERROR; |
| } |
| } |
| |
| import_stmt |
| : IMPORT FQNAME require_semicolon |
| { |
| if (!ast->addImport($2)) { |
| std::cerr << "ERROR: Unable to import '" << $2 << "' at " << @2 |
| << "\n"; |
| ast->addSyntaxError(); |
| } |
| } |
| | IMPORT valid_identifier 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 */ { $$ = NULL; } |
| | EXTENDS fqtype { $$ = $2; } |
| |
| body |
| : type_declarations |
| ; |
| |
| interface_declarations |
| : /* empty */ |
| | interface_declarations type_declaration |
| { |
| 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 |
| { |
| std::string errorMsg; |
| if ($2 != nullptr && |
| !isValidInterfaceField($2->name().c_str(), &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| |
| if ($2 != nullptr) { |
| if (!ast->scope()->isInterface()) { |
| std::cerr << "ERROR: unknown error in interface declaration at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| |
| Interface *iface = static_cast<Interface *>(ast->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 != nullptr) { |
| $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; |
| } |
| $$ = $2; |
| } |
| ; |
| |
| type_declaration_body |
| : named_struct_or_union_declaration require_semicolon |
| | named_enum_declaration require_semicolon |
| | typedef_declaration require_semicolon |
| | interface_declaration require_semicolon |
| ; |
| |
| interface_declaration |
| : INTERFACE valid_identifier opt_extends |
| { |
| Type *parent = $3; |
| |
| if (ast->package() != gIBasePackageFqName) { |
| if (!ast->addImport(gIBaseFqName.string().c_str())) { |
| std::cerr << "ERROR: Unable to automatically import '" |
| << gIBaseFqName.string() |
| << "' at " << @$ |
| << "\n"; |
| YYERROR; |
| } |
| if (parent == nullptr) { |
| parent = ast->lookupType(gIBaseFqName); |
| } |
| } |
| |
| if (parent != NULL && !parent->isInterface()) { |
| std::cerr << "ERROR: You can only extend interfaces. at " << @3 |
| << "\n"; |
| |
| YYERROR; |
| } |
| |
| if ($2[0] != 'I') { |
| std::cerr << "ERROR: All interface names must start with an 'I' " |
| << "prefix. at " << @2 << "\n"; |
| |
| YYERROR; |
| } |
| |
| Interface *iface = new Interface($2, convertYYLoc(@2), static_cast<Interface *>(parent)); |
| |
| // Register interface immediately so it can be referenced inside |
| // definition. |
| std::string errorMsg; |
| if (!ast->addScopedType(iface, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @2 << "\n"; |
| YYERROR; |
| } |
| |
| ast->enterScope(iface); |
| } |
| '{' interface_declarations '}' |
| { |
| if (!ast->scope()->isInterface()) { |
| std::cerr << "ERROR: unknown error in interface declaration at " |
| << @5 << "\n"; |
| YYERROR; |
| } |
| |
| Interface *iface = static_cast<Interface *>(ast->scope()); |
| if (!iface->addAllReservedMethods()) { |
| std::cerr << "ERROR: unknown error in adding reserved methods at " |
| << @5 << "\n"; |
| YYERROR; |
| } |
| |
| ast->leaveScope(); |
| |
| $$ = iface; |
| } |
| ; |
| |
| typedef_declaration |
| : TYPEDEF type valid_identifier |
| { |
| std::string errorMsg; |
| if (!ast->addTypeDef($3, $2, convertYYLoc(@3), &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @3 << "\n"; |
| YYERROR; |
| } |
| |
| $$ = nullptr; |
| } |
| ; |
| |
| const_expr |
| : INTEGER { $$ = new ConstantExpression($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 = ast->scope()->lookupIdentifier(identifier); |
| if(!iden) { |
| std::cerr << "ERROR: identifier " << $1->string() |
| << " could not be found at " << @1 << ".\n"; |
| YYERROR; |
| } |
| if(!iden->isEnumValue()) { |
| std::cerr << "ERROR: identifier " << $1->string() |
| << " is not an enum value at " << @1 << ".\n"; |
| YYERROR; |
| } |
| $$ = new ConstantExpression( |
| *(static_cast<EnumValue *>(iden)->constExpr()), $1->string()); |
| } else { |
| std::string errorMsg; |
| EnumValue *v = ast->lookupEnumValue(*($1), &errorMsg); |
| if(v == nullptr) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @1 << ".\n"; |
| YYERROR; |
| } |
| $$ = new ConstantExpression(*(v->constExpr()), $1->string()); |
| } |
| } |
| | const_expr '?' const_expr ':' const_expr |
| { |
| $$ = new ConstantExpression($1, $3, $5); |
| } |
| | const_expr LOGICAL_OR const_expr { $$ = new ConstantExpression($1, "||", $3); } |
| | const_expr LOGICAL_AND const_expr { $$ = new ConstantExpression($1, "&&", $3); } |
| | const_expr '|' const_expr { $$ = new ConstantExpression($1, "|" , $3); } |
| | const_expr '^' const_expr { $$ = new ConstantExpression($1, "^" , $3); } |
| | const_expr '&' const_expr { $$ = new ConstantExpression($1, "&" , $3); } |
| | const_expr EQUALITY const_expr { $$ = new ConstantExpression($1, "==", $3); } |
| | const_expr NEQ const_expr { $$ = new ConstantExpression($1, "!=", $3); } |
| | const_expr '<' const_expr { $$ = new ConstantExpression($1, "<" , $3); } |
| | const_expr '>' const_expr { $$ = new ConstantExpression($1, ">" , $3); } |
| | const_expr LEQ const_expr { $$ = new ConstantExpression($1, "<=", $3); } |
| | const_expr GEQ const_expr { $$ = new ConstantExpression($1, ">=", $3); } |
| | const_expr LSHIFT const_expr { $$ = new ConstantExpression($1, "<<", $3); } |
| | const_expr RSHIFT const_expr { $$ = new ConstantExpression($1, ">>", $3); } |
| | const_expr '+' const_expr { $$ = new ConstantExpression($1, "+" , $3); } |
| | const_expr '-' const_expr { $$ = new ConstantExpression($1, "-" , $3); } |
| | const_expr '*' const_expr { $$ = new ConstantExpression($1, "*" , $3); } |
| | const_expr '/' const_expr { $$ = new ConstantExpression($1, "/" , $3); } |
| | const_expr '%' const_expr { $$ = new ConstantExpression($1, "%" , $3); } |
| | '+' const_expr %prec UNARY_PLUS { $$ = new ConstantExpression("+", $2); } |
| | '-' const_expr %prec UNARY_MINUS { $$ = new ConstantExpression("-", $2); } |
| | '!' const_expr { $$ = new ConstantExpression("!", $2); } |
| | '~' const_expr { $$ = new ConstantExpression("~", $2); } |
| | '(' const_expr ')' { $$ = $2; } |
| | '(' error ')' |
| { |
| ast->addSyntaxError(); |
| // to avoid segfaults |
| $$ = new ConstantExpression(ConstantExpression::Zero(ScalarType::KIND_INT32)); |
| } |
| ; |
| |
| method_declaration |
| : error_stmt { $$ = nullptr; } |
| | opt_annotations valid_identifier '(' typed_vars ')' require_semicolon |
| { |
| $$ = new Method($2, $4, new std::vector<TypedVar *>, false, $1); |
| } |
| | opt_annotations ONEWAY valid_identifier '(' typed_vars ')' require_semicolon |
| { |
| $$ = new Method($3, $5, new std::vector<TypedVar *>, true, $1); |
| } |
| | opt_annotations valid_identifier '(' typed_vars ')' GENERATES '(' typed_vars ')' require_semicolon |
| { |
| $$ = new Method($2, $4, $8, false, $1); |
| } |
| ; |
| |
| typed_vars |
| : /* empty */ |
| { |
| $$ = 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 { $$ = new TypedVar($2, $1); } |
| ; |
| |
| |
| struct_or_union_keyword |
| : STRUCT { $$ = CompoundType::STYLE_STRUCT; } |
| | UNION { $$ = CompoundType::STYLE_UNION; } |
| ; |
| |
| named_struct_or_union_declaration |
| : struct_or_union_keyword valid_identifier |
| { |
| CompoundType *container = new CompoundType($1, $2, convertYYLoc(@2)); |
| ast->enterScope(container); |
| } |
| struct_or_union_body |
| { |
| if (!ast->scope()->isCompoundType()) { |
| std::cerr << "ERROR: unknown error in struct or union declaration at " |
| << @4 << "\n"; |
| YYERROR; |
| } |
| CompoundType *container = static_cast<CompoundType *>(ast->scope()); |
| |
| std::string errorMsg; |
| if (!container->setFields($4, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @4 << "\n"; |
| YYERROR; |
| } |
| |
| ast->leaveScope(); |
| |
| if (!ast->addScopedType(container, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @2 << "\n"; |
| YYERROR; |
| } |
| |
| $$ = container; |
| } |
| ; |
| |
| struct_or_union_body |
| : '{' field_declarations '}' { $$ = $2; } |
| ; |
| |
| field_declarations |
| : /* empty */ { $$ = new std::vector<CompoundField *>; } |
| | field_declarations field_declaration |
| { |
| $$ = $1; |
| |
| if ($2 != NULL) { |
| $$->push_back($2); |
| } |
| } |
| ; |
| |
| field_declaration |
| : error_stmt { $$ = nullptr; } |
| | type valid_identifier require_semicolon |
| { |
| std::string errorMsg; |
| if (ast->scope()->isCompoundType() && |
| static_cast<CompoundType *>(ast->scope())->style() == CompoundType::STYLE_STRUCT && |
| !isValidStructField($2, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " |
| << @2 << "\n"; |
| YYERROR; |
| } |
| $$ = new CompoundField($2, $1); |
| } |
| | annotated_compound_declaration ';' |
| { |
| std::string errorMsg; |
| if (ast->scope()->isCompoundType() && |
| static_cast<CompoundType *>(ast->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; |
| } |
| $$ = NULL; |
| } |
| ; |
| |
| annotated_compound_declaration |
| : opt_annotations compound_declaration |
| { |
| $2->setAnnotations($1); |
| $$ = $2; |
| } |
| ; |
| |
| compound_declaration |
| : named_struct_or_union_declaration { $$ = $1; } |
| | named_enum_declaration { $$ = $1; } |
| ; |
| |
| enum_storage_type |
| : ':' fqtype |
| { |
| $$ = $2; |
| |
| if ($$ != NULL && !$$->isValidEnumStorageType()) { |
| std::cerr << "ERROR: Invalid enum storage type specified. at " |
| << @2 << "\n"; |
| |
| YYERROR; |
| } |
| } |
| ; |
| |
| opt_comma |
| : /* empty */ |
| | ',' |
| ; |
| |
| named_enum_declaration |
| : ENUM valid_identifier enum_storage_type |
| { |
| ast->enterScope(new EnumType($2, convertYYLoc(@2), $3)); |
| } |
| enum_declaration_body |
| { |
| if (!ast->scope()->isEnum()) { |
| std::cerr << "ERROR: unknown error in enum declaration at " |
| << @5 << "\n"; |
| YYERROR; |
| } |
| |
| EnumType *enumType = static_cast<EnumType *>(ast->scope()); |
| ast->leaveScope(); |
| |
| std::string errorMsg; |
| if (!ast->addScopedType(enumType, &errorMsg)) { |
| std::cerr << "ERROR: " << errorMsg << " at " << @2 << "\n"; |
| YYERROR; |
| } |
| |
| $$ = enumType; |
| } |
| ; |
| |
| enum_declaration_body |
| : '{' enum_values opt_comma '}' { $$ = $2; } |
| ; |
| |
| enum_value |
| : valid_identifier { $$ = new EnumValue($1); } |
| | valid_identifier '=' const_expr { $$ = new EnumValue($1, $3); } |
| ; |
| |
| enum_values |
| : /* empty */ |
| { /* do nothing */ } |
| | enum_value |
| { |
| if (!ast->scope()->isEnum()) { |
| std::cerr << "ERROR: unknown error in enum declaration at " |
| << @1 << "\n"; |
| YYERROR; |
| } |
| |
| static_cast<EnumType *>(ast->scope())->addValue($1); |
| } |
| | enum_values ',' enum_value |
| { |
| if (!ast->scope()->isEnum()) { |
| std::cerr << "ERROR: unknown error in enum declaration at " |
| << @3 << "\n"; |
| YYERROR; |
| } |
| |
| static_cast<EnumType *>(ast->scope())->addValue($3); |
| } |
| ; |
| |
| array_type_base |
| : fqtype { $$ = $1; } |
| | TEMPLATED '<' type '>' |
| { |
| if (!$1->isCompatibleElementType($3)) { |
| std::cerr << "ERROR: " << $1->typeName() << " of " << $3->typeName() |
| << " is not supported. at " << @3 << "\n"; |
| |
| YYERROR; |
| } |
| $1->setElementType($3); |
| $$ = $1; |
| } |
| | TEMPLATED '<' TEMPLATED '<' type RSHIFT |
| { |
| if (!$3->isCompatibleElementType($5)) { |
| std::cerr << "ERROR: " << $3->typeName() << " of " << $5->typeName() |
| << " is not supported. at " << @3 << "\n"; |
| |
| YYERROR; |
| } |
| $3->setElementType($5); |
| if (!$1->isCompatibleElementType($3)) { |
| std::cerr << "ERROR: " << $1->typeName() << " of " << $3->typeName() |
| << " is not supported. at " << @3 << "\n"; |
| |
| YYERROR; |
| } |
| $1->setElementType($3); |
| $$ = $1; |
| } |
| ; |
| |
| array_type |
| : array_type_base '[' const_expr ']' |
| { |
| if ($1->isBinder()) { |
| std::cerr << "ERROR: Arrays of interface types are not supported." |
| << " at " << @1 << "\n"; |
| |
| YYERROR; |
| } |
| if ($1->isArray()) { |
| $$ = new ArrayType(static_cast<ArrayType *>($1), $3); |
| } else { |
| $$ = new ArrayType($1, $3); |
| } |
| } |
| | array_type '[' const_expr ']' |
| { |
| $$ = $1; |
| $$->appendDimension($3); |
| } |
| ; |
| |
| type |
| : array_type_base { $$ = $1; } |
| | array_type { $$ = $1; } |
| | annotated_compound_declaration { $$ = $1; } |
| | INTERFACE |
| { |
| // "interface" is a synonym of android.hidl.base@1.0::IBase |
| $$ = ast->lookupType(gIBaseFqName); |
| if ($$ == nullptr) { |
| std::cerr << "FATAL: Cannot find " |
| << gIBaseFqName.string() |
| << " at " << @1 << "\n"; |
| |
| YYERROR; |
| } |
| } |
| ; |
| |
| %% |
| |
| #include <android-base/logging.h> |
| |
| void yy::parser::error( |
| const yy::parser::location_type &where, |
| const std::string &errstr) { |
| std::cerr << "ERROR: " << errstr << " at " << where << "\n"; |
| } |
| |
