diff options
Diffstat (limited to 'Compiler/CGrammar.g4')
| -rw-r--r-- | Compiler/CGrammar.g4 | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/Compiler/CGrammar.g4 b/Compiler/CGrammar.g4 index 1b47978..b0a03f7 100644 --- a/Compiler/CGrammar.g4 +++ b/Compiler/CGrammar.g4 @@ -4,6 +4,8 @@ options { contextSuperClass = Q1.Compiler.Context; } +HEX: '0x' [0-9a-fA-F]; + ID: [a-zA-Z_][a-zA-Z0-9_]*; INT: [0-9]+; WS: [ \t\r\n]+ -> skip; @@ -15,8 +17,8 @@ program ; function - : 'int' name=ID '(' ( types+='int' params+=ID (',' types+='int' params+=ID )* )? ')' ';' #functionPrototype - | 'int' name=ID '(' ( types+='int' params+=ID (',' types+='int' params+=ID )* )? ')' block #functionDefinition + : rtype=type name=ID '(' ( types+=type params+=ID (',' types+=type params+=ID )* )? ')' ';' #functionPrototype + | rtype=type name=ID '(' ( types+=type params+=ID (',' types+=type params+=ID )* )? ')' block #functionDefinition ; block @@ -44,7 +46,7 @@ statement declaration - : 'int' ptr='*' name=ID ('=' value=expression)? ';' #variableDeclaration + : type name=ID ('=' value=expression)? ';' #variableDeclaration ; expression @@ -57,6 +59,7 @@ expression | ID #variableExpression | ID '(' ( params+=expression (',' params+=expression )* )? ')' #callExpression + | obj=expression '[' indexer=expression ']' #indexExpression | '!' expression #notExpression | '~' expression #invertExpression @@ -109,6 +112,13 @@ expression constant : INT # intConstant + | HEX # hexConstant + ; + +type + : 'int' #intType + | 'char' #charType + | type '*' #pointerType ; target |