yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

T. FoleyFix a bug in preprocessor "busy" logic (#1875)58d7af37f

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1// macro-parens-from-expansion.slang
2//DIAGNOSTIC_TEST:SIMPLE:-E
3
4// This test covers a case where the parentheses for
5// a function-like macro invocation argument list are
6// themselves produced by a macro invocation.
7//
8// In the below code, it is important that the macros
9// `LPAREN` and `RPAREN` are not considered busy for
10// the invocation of `INNER`, despite the fact that
11// both of those macros were expanded as part of
12// producing the arguments to the `INNER` invocation.
13
14#define LPAREN (
15#define RPAREN )
16#define INNER(X) LPAREN X RPAREN
17#define M(X) X
18#define OUTER(X) M( INNER LPAREN X RPAREN )
19
20// output: ( 3 )
21OUTER(3)