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Don't accept function params starting with a comma

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- Fixed: func_expr_list would accept nonsense like this:
    Myfunction(, 1, 2);
This commit is contained in:
Randy Heit 2013-07-23 19:28:58 -05:00
parent aadd4e4de6
commit 46c0127ebb
1 changed files with 7 additions and 2 deletions
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9
src/zscript/zcc-parse.lemon
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@ -991,17 +991,22 @@ expr_list(X) ::= expr_list(A) COMMA expr(B).
* but once you do that, all remaining parameters must also be named. * but once you do that, all remaining parameters must also be named.
* We let higher-level code handle this to keep this file simpler. */ * We let higher-level code handle this to keep this file simpler. */
%type func_expr_list{ZCC_FuncParm *} %type func_expr_list{ZCC_FuncParm *}
%type func_expr_list1{ZCC_FuncParm *}
%type named_expr{ZCC_FuncParm *} %type named_expr{ZCC_FuncParm *}
func_expr_list(X) ::= . func_expr_list(X) ::= .
{ {
X = NULL; X = NULL;
} }
func_expr_list(X) ::= named_expr(A). func_expr_list(X) ::= func_expr_list1(A).
{ {
X = A; X = A;
} }
func_expr_list(X) ::= func_expr_list(A) COMMA named_expr(B). func_expr_list1(X) ::= named_expr(A).
{
X = A;
}
func_expr_list1(X) ::= func_expr_list1(A) COMMA named_expr(B).
{ {
X = A; X = A;
A->AppendSibling(B); A->AppendSibling(B);