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@ptrCast supports casting a slice to pointer

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This commit is contained in:
Andrew Kelley
2020-03-17 17:33:44 -04:00
parent c896c5001f
commit 8d0ac6dc4d
4 changed files with 86 additions and 26 deletions
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20
src/analyze.cpp
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@@ -4486,7 +4486,14 @@ static uint32_t get_async_frame_align_bytes(CodeGen *g) {
}
uint32_t get_ptr_align(CodeGen *g, ZigType *type) {
ZigType *ptr_type = get_src_ptr_type(type);
ZigType *ptr_type;
if (type->id == ZigTypeIdStruct) {
assert(type->data.structure.special == StructSpecialSlice);
TypeStructField *ptr_field = type->data.structure.fields[slice_ptr_index];
ptr_type = resolve_struct_field_type(g, ptr_field);
} else {
ptr_type = get_src_ptr_type(type);
}
if (ptr_type->id == ZigTypeIdPointer) {
return (ptr_type->data.pointer.explicit_alignment == 0) ?
get_abi_alignment(g, ptr_type->data.pointer.child_type) : ptr_type->data.pointer.explicit_alignment;
@@ -4503,8 +4510,15 @@ uint32_t get_ptr_align(CodeGen *g, ZigType *type) {
}
}
bool get_ptr_const(ZigType *type) {
ZigType *ptr_type = get_src_ptr_type(type);
bool get_ptr_const(CodeGen *g, ZigType *type) {
ZigType *ptr_type;
if (type->id == ZigTypeIdStruct) {
assert(type->data.structure.special == StructSpecialSlice);
TypeStructField *ptr_field = type->data.structure.fields[slice_ptr_index];
ptr_type = resolve_struct_field_type(g, ptr_field);
} else {
ptr_type = get_src_ptr_type(type);
}
if (ptr_type->id == ZigTypeIdPointer) {
return ptr_type->data.pointer.is_const;
} else if (ptr_type->id == ZigTypeIdFn) {