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Add underlying type for bit_set

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This commit is contained in:
gingerBill
2018-08-17 15:11:41 +01:00
parent 7d39b26cf4
commit b216e44870
11 changed files with 162 additions and 83 deletions
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33
src/types.cpp
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@@ -179,7 +179,8 @@ struct TypeStruct {
i64 custom_align; \
}) \
TYPE_KIND(BitSet, struct { \
Type *base; \
Type *elem; \
Type *underlying; \
i64 lower; \
i64 upper; \
}) \
@@ -981,10 +982,28 @@ bool is_type_valid_for_keys(Type *t) {
return false;
}
bool is_type_valid_bit_set_elem(Type *t) {
if (is_type_enum(t)) {
return true;
}
t = core_type(t);
if (t->kind == Type_Generic) {
return true;
}
return false;
}
Type *bit_set_to_int(Type *t) {
GB_ASSERT(is_type_bit_set(t));
Type *bt = base_type(t);
Type *underlying = bt->BitSet.underlying;
if (underlying != nullptr && is_type_integer(underlying)) {
return underlying;
}
i64 sz = type_size_of(t);
switch (sz) {
case 0: return t_u8;
case 1: return t_u8;
case 2: return t_u16;
case 4: return t_u32;
@@ -1277,7 +1296,7 @@ bool are_types_identical(Type *x, Type *y) {
case Type_BitSet:
if (y->kind == Type_BitSet) {
return are_types_identical(x->BitSet.base, y->BitSet.base);
return are_types_identical(x->BitSet.elem, y->BitSet.elem);
}
break;
@@ -2069,8 +2088,10 @@ i64 type_align_of_internal(Type *t, TypePath *path) {
} break;
case Type_BitSet: {
if (t->BitSet.underlying != nullptr) {
return type_align_of(t->BitSet.underlying);
}
i64 bits = t->BitSet.upper - t->BitSet.lower + 1;
if (bits == 0) return 0;
if (bits <= 8) return 1;
if (bits <= 16) return 2;
if (bits <= 32) return 4;
@@ -2296,8 +2317,10 @@ i64 type_size_of_internal(Type *t, TypePath *path) {
} break;
case Type_BitSet: {
if (t->BitSet.underlying != nullptr) {
return type_size_of(t->BitSet.underlying);
}
i64 bits = t->BitSet.upper - t->BitSet.lower + 1;
if (bits == 0) return 0;
if (bits <= 8) return 1;
if (bits <= 16) return 2;
if (bits <= 32) return 4;
@@ -2617,7 +2640,7 @@ gbString write_type_to_string(gbString str, Type *type) {
case Type_BitSet:
str = gb_string_appendc(str, "bit_set[");
str = write_type_to_string(str, type->BitSet.base);
str = write_type_to_string(str, type->BitSet.elem);
str = gb_string_appendc(str, "]");
break;
}