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Typesafe variadic procedures

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This commit is contained in:
Ginger Bill
2016-09-03 12:41:03 +01:00
parent e1a6775661
commit 11205f968a
9 changed files with 297 additions and 112 deletions
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src/checker/type.cpp
+20 -5
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@@ -149,6 +149,7 @@ struct Type {
Type * results; // Type_Tuple
isize param_count;
isize result_count;
b32 variadic;
} Proc;
};
};
@@ -240,13 +241,27 @@ Type *make_type_tuple(gbAllocator a) {
return t;
}
Type *make_type_proc(gbAllocator a, Scope *scope, Type *params, isize param_count, Type *results, isize result_count) {
Type *make_type_proc(gbAllocator a, Scope *scope, Type *params, isize param_count, Type *results, isize result_count, b32 variadic) {
Type *t = alloc_type(a, Type_Proc);
t->Proc.scope = scope;
t->Proc.params = params;
t->Proc.param_count = param_count;
t->Proc.results = results;
if (variadic) {
if (param_count == 0) {
GB_PANIC("variadic procedure must have at least one parameter");
}
GB_ASSERT(params != NULL && params->kind == Type_Tuple);
Entity *e = params->Tuple.variables[param_count-1];
if (get_base_type(e->type)->kind != Type_Slice) {
// NOTE(bill): For custom calling convention
GB_PANIC("variadic parameter must be of type slice");
}
}
t->Proc.scope = scope;
t->Proc.params = params;
t->Proc.param_count = param_count;
t->Proc.results = results;
t->Proc.result_count = result_count;
t->Proc.variadic = variadic;
return t;
}