diff options
Diffstat (limited to 'c_compiler/src/c_parser.y')
| -rw-r--r-- | c_compiler/src/c_parser.y | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/c_compiler/src/c_parser.y b/c_compiler/src/c_parser.y index 79d8902..b6e8159 100644 --- a/c_compiler/src/c_parser.y +++ b/c_compiler/src/c_parser.y @@ -37,15 +37,11 @@ void yyerror(const char *); %token T_IDENTIFIER T_SC T_CMA T_LRB T_LCB T_RCB T_LSB T_RSB T_QU T_COL T_LOG_OR 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_SIZEOF T_INT_CONST T_IF T_WHILE T_DO T_FOR T_RETURN T_VOID T_CHAR T_SHORT T_INT T_LONG T_FLOAT T_DOUBLE T_SIGNED T_UNSIGNED - T_TYPEDEF T_EXTERN T_STATIC T_AUTO T_REGISTER - - T_CONST T_VOLATILE - - T_GOTO T_BREAK T_CONTINUE + T_CONST T_VOLATILE T_GOTO T_BREAK T_CONTINUE + T_CASE T_DEFAULT T_SWITCH %nonassoc T_RRB %nonassoc T_ELSE @@ -59,7 +55,7 @@ void yyerror(const char *); %type <statement> StatementList Statement CompoundStatement CompoundStatement_2 SelectionStatement - ExpressionStatement JumpStatement IterationStatement + ExpressionStatement JumpStatement IterationStatement LabeledStatement %type <declaration> ParameterList Parameter DeclarationList Declaration InitDeclaratorList InitDeclarator @@ -210,13 +206,20 @@ StatementList: | StatementList Statement { $2->linkStatement($$); $$ = $2; } ; -Statement: CompoundStatement { $$ = $1; } +Statement: LabeledStatement { $$ = $1; } + | CompoundStatement { $$ = $1; } | SelectionStatement { $$ = $1; } | ExpressionStatement { $$ = $1; } | JumpStatement { $$ = $1; } | IterationStatement { $$ = $1; } ; +LabeledStatement: + T_IDENTIFIER T_COL Statement { $$ = new LabelStatement(*$1, $3); } + | T_CASE ConditionalExpression T_COL Statement { $$ = new CaseStatement($4, $2); } + | T_DEFAULT T_COL Statement { $$ = new CaseStatement($3, nullptr, true); } + ; + CompoundStatement: T_LCB CompoundStatement_2 { $$ = $2; } ; @@ -231,6 +234,7 @@ CompoundStatement_2: SelectionStatement: T_IF T_LRB Expression T_RRB Statement { $$ = new IfElseStatement($3, $5); } | T_IF T_LRB Expression T_RRB Statement T_ELSE Statement { $$ = new IfElseStatement($3, $5, $7); } + | T_SWITCH T_LRB Expression T_RRB Statement { $$ = new SwitchStatement($3, $5); } ; ExpressionStatement: |