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add return statement to the grammar

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nitrix
2019-11-25 14:44:14 +01:00
parent d8985bf070
commit c5dc08c1e0
1 changed files with 6 additions and 0 deletions
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6
src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4
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@@ -24,6 +24,7 @@ statement
: print : print
| if_statement | if_statement
| variable_assignment | variable_assignment
| return_statement
; ;
print print
@@ -38,6 +39,10 @@ variable_assignment
: IDENT EQUAL expression SCOL : IDENT EQUAL expression SCOL
; ;
return_statement
: RETURN expression SCOL
;
expression expression
: atom MULT atom #multiplicationExpression : atom MULT atom #multiplicationExpression
| atom op=(ADD | SUB) atom #additiveExpression | atom op=(ADD | SUB) atom #additiveExpression
@@ -64,6 +69,7 @@ PRINT: 'print';
IF: 'if'; IF: 'if';
ELSE: 'else'; ELSE: 'else';
FUNC: 'function'; FUNC: 'function';
RETURN: 'return';
SCOL: ';'; SCOL: ';';
OBRK: '{'; OBRK: '{';