Disallow casting to and from cstring/pointers

TODO: get a better error message
This commit is contained in:
gingerBill
2019-03-19 20:34:06 +00:00
parent 400558abcd
commit 0e1cfa5a0a

View File

@@ -1418,6 +1418,9 @@ bool check_representable_as_constant(CheckerContext *c, ExactValue in_value, Typ
return false;
// return true;
}
if (in_value.kind == ExactValue_String) {
return false;
}
if (out_value) *out_value = in_value;
} else if (is_type_bit_set(type)) {
if (in_value.kind == ExactValue_Integer) {
@@ -1882,6 +1885,8 @@ bool check_is_castable_to(CheckerContext *c, Operand *operand, Type *y) {
return true;
}
bool is_constant = operand->mode == Addressing_Constant;
Type *x = operand->type;
Type *src = core_type(x);
Type *dst = core_type(y);
@@ -1964,20 +1969,20 @@ bool check_is_castable_to(CheckerContext *c, Operand *operand, Type *y) {
}
// cstring -> ^u8
if (are_types_identical(src, t_cstring) && is_type_u8_ptr(dst)) {
return true;
return !is_constant;
}
// cstring -> rawptr
if (are_types_identical(src, t_cstring) && is_type_rawptr(dst)) {
return true;
return !is_constant;
}
// ^u8 -> cstring
if (is_type_u8_ptr(src) && are_types_identical(dst, t_cstring)) {
return true;
return !is_constant;
}
// rawptr -> cstring
if (is_type_rawptr(src) && are_types_identical(dst, t_cstring)) {
return true;
return !is_constant;
}
// proc <-> proc
if (is_type_proc(src) && is_type_proc(dst)) {