diff options
Diffstat (limited to 'c_compiler/src/c_parser.y')
| -rw-r--r-- | c_compiler/src/c_parser.y | 73 |
1 files changed, 29 insertions, 44 deletions
diff --git a/c_compiler/src/c_parser.y b/c_compiler/src/c_parser.y index 5a35c63..e87f8f7 100644 --- a/c_compiler/src/c_parser.y +++ b/c_compiler/src/c_parser.y @@ -37,12 +37,12 @@ void yyerror(const char *); T_LOG_AND T_OR T_XOR T_AND T_EQUALITY_OP T_REL_OP T_SHIFT_OP T_MULT T_DIV T_REM T_TILDE T_NOT T_DOT T_ARROW T_INCDEC T_ADDSUB_OP T_ASSIGN_OPER T_EQ T_SIZEOF T_INT_CONST T_IF T_WHILE T_DO T_FOR T_RETURN - + T_VOID T_CHAR T_SCHAR T_UCHAR T_SSINT T_USINT T_LINT T_ULINT T_UINT T_SINT %nonassoc T_RRB %nonassoc T_ELSE - + %type <node> ExternalDeclaration @@ -97,28 +97,25 @@ ExternalDeclaration: // FUNCTION DEFINITION FunctionDefinition: -DeclarationSpec T_IDENTIFIER T_LRB ParameterList T_RRB CompoundStatement { $$ = new Function(*$2, $4, $6); delete $2; } + DeclarationSpec T_IDENTIFIER T_LRB ParameterList T_RRB CompoundStatement { $$ = new Function(*$2, $4, $6); delete $2; } ; -ParameterList: - %empty { $$ = new Declaration(); } +ParameterList:% empty { $$ = new Declaration(); } | Parameter { $$ = $1; } - | ParameterList T_CMA Parameter { $3->addDeclaration($$); $$ = $3;} + | ParameterList T_CMA Parameter { $3->linkDeclaration($$); $$ = $3;} ; -Parameter: -DeclarationSpec T_IDENTIFIER { $$ = new Declaration(*$2); delete $2; } +Parameter: DeclarationSpec T_IDENTIFIER { $$ = new Declaration(*$2); delete $2; } ; // Declaration DeclarationList: Declaration { $$ = $1; } - | DeclarationList Declaration { $2->addDeclaration($$); $$ = $2; } + | DeclarationList Declaration { $2->linkDeclaration($$); $$ = $2; } ; -Declaration: - DeclarationSpec InitDeclaratorList T_SC { +Declaration: DeclarationSpec InitDeclaratorList T_SC { $$ = $2; Declaration* tmp_decl = $2; @@ -142,17 +139,15 @@ DeclarationSpec: ; InitDeclaratorList: -InitDeclarator { $$ = new Declaration(*$1); delete $1;} - | InitDeclaratorList T_CMA InitDeclarator { $3->addList($$); $$ = $3; } + InitDeclarator { $$ = new Declaration(*$1); delete $1;} + | InitDeclaratorList T_CMA InitDeclarator { $3->linkListDeclaration($$); $$ = $3; } ; -InitDeclarator: -Declarator { $$ = new Declaration(*$1); delete $1; } -| Declarator T_EQ AssignmentExpression { $$ = new Declaration(*$1, $3); delete $1; } +InitDeclarator: Declarator { $$ = new Declaration(*$1); delete $1; } + | Declarator T_EQ AssignmentExpression { $$ = new Declaration(*$1, $3); delete $1; } ; -Declarator: - DirectDeclarator { $$ = $1; } +Declarator: DirectDeclarator { $$ = $1; } | T_MULT DirectDeclarator { $$ = $2; } ; @@ -165,19 +160,17 @@ DirectDeclarator: | DirectDeclarator T_LRB IdentifierList T_RRB { $$ = $1; } ; -IdentifierList: - T_IDENTIFIER { $$ = new Declaration(); } +IdentifierList: T_IDENTIFIER { $$ = new Declaration(); } | IdentifierList T_CMA T_IDENTIFIER { $$ = new Declaration(); } // Statement StatementList: Statement { $$ = $1; } - | StatementList Statement { $2->addStatement($$); $$ = $2; } + | StatementList Statement { $2->linkStatement($$); $$ = $2; } ; -Statement: - CompoundStatement { $$ = $1; } +Statement: CompoundStatement { $$ = $1; } | SelectionStatement { $$ = $1; } | ExpressionStatement { $$ = $1; } | JumpStatement { $$ = $1; } @@ -202,11 +195,10 @@ SelectionStatement: ExpressionStatement: T_SC { $$ = new ExpressionStatement(); } -| Expression T_SC { $$ = new ExpressionStatement($1); } + | Expression T_SC { $$ = new ExpressionStatement($1); } ; -JumpStatement: - T_RETURN Expression T_SC { $$ = new JumpStatement($2); } +JumpStatement: T_RETURN Expression T_SC { $$ = new JumpStatement($2); } ; IterationStatement: @@ -217,17 +209,15 @@ IterationStatement: // Expressions -Expression: - AssignmentExpression { $$ = $1; } +Expression: AssignmentExpression { $$ = $1; } ; AssignmentExpression: ConditionalExpression { $$ = $1; } -| UnaryExpression ASSIGN_OPER AssignmentExpression { $$ = new AssignmentExpression($1, $3); } + | UnaryExpression ASSIGN_OPER AssignmentExpression { $$ = new AssignmentExpression($1, $3); } ; -ASSIGN_OPER: - T_ASSIGN_OPER { ; } +ASSIGN_OPER: T_ASSIGN_OPER { ; } | T_EQ { ; } ; @@ -256,8 +246,7 @@ ExclusiveOrExpression: | ExclusiveOrExpression T_XOR AndExpression { $$ = $3; } ; -AndExpression: - EqualityExpression { $$ = $1; } +AndExpression: EqualityExpression { $$ = $1; } | AndExpression T_AND EqualityExpression { $$ = $3; } ; @@ -278,22 +267,20 @@ ShiftExpression: AdditiveExpression: MultiplicativeExpression { $$ = $1; } -| AdditiveExpression T_ADDSUB_OP MultiplicativeExpression { $$ = new AdditiveExpression($1, *$2, $3); delete $2; } + | AdditiveExpression T_ADDSUB_OP MultiplicativeExpression { $$ = new AdditiveExpression($1, *$2, $3); delete $2; } ; MultiplicativeExpression: CastExpression { $$ = $1; } -| MultiplicativeExpression MultDivRemOP CastExpression { $$ = new MultiplicativeExpression($1, *$2, $3); delete $2; } + | MultiplicativeExpression MultDivRemOP CastExpression { $$ = new MultiplicativeExpression($1, *$2, $3); delete $2; } ; -MultDivRemOP: - T_MULT { $$ = $1; } +MultDivRemOP: T_MULT { $$ = $1; } | T_DIV { $$ = $1; } | T_REM { $$ = $1; } ; -CastExpression: - UnaryExpression { $$ = $1; } +CastExpression: UnaryExpression { $$ = $1; } | T_LRB DeclarationSpec T_RRB CastExpression { $$ = $4; } ; @@ -305,8 +292,7 @@ UnaryExpression: | T_SIZEOF T_LRB DeclarationSpec T_RRB { $$ = new Constant(0); } ; -UnaryOperator: - T_AND { $$ = $1; } +UnaryOperator: T_AND { $$ = $1; } | T_ADDSUB_OP { $$ = $1; } | T_MULT { $$ = $1; } | T_TILDE { $$ = $1; } @@ -333,13 +319,12 @@ ArgumentExpressionList: ; PrimaryExpression: -T_IDENTIFIER { $$ = new Identifier(*$1); delete $1; } + T_IDENTIFIER { $$ = new Identifier(*$1); delete $1; } | Constant { $$ = $1; } | T_LRB Expression T_RRB { $$ = $2; } ; -Constant: - T_INT_CONST { $$ = new Constant($1); } +Constant: T_INT_CONST { $$ = new Constant($1); } ; %% |