scc

Simple C99 Compiler
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commit 83c47446b030f8abd1c7b635d41bdd84fc10f8b0
parent a47da4831e6000e825decbeb876cfc604082d41f
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Sun, 16 Nov 2014 06:17:03 -0500

Check type of function parameters

Not all the types are valid for functions (for example function parameters),
and it is also needed decay the array types to pointers.

Diffstat:
cc1/decl.c | 9++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/cc1/decl.c b/cc1/decl.c @@ -383,8 +383,11 @@ parameter(void) if ((tp = specifier(&sclass)) == voidtype) return tp; sym = declarator(tp, ID_ACCEPTED, NS_IDEN); - sym->s.isdefined = 1; - /* TODO: check type of the parameter */ + tp = sym->type; + if (tp->op == FTN) + error("incorrect function type for a function parameter"); + if (tp->op == ARY) + tp = mktype(tp->type, PTR, 0, NULL); switch (sclass) { case REGISTER: sym->s.isregister = 1; @@ -395,7 +398,7 @@ parameter(void) default: error("bad storage class in function parameter"); } - return sym->type; + return tp; } void