59 lines
1.3 KiB
V
59 lines
1.3 KiB
V
// Copyright (c) 2019-2023 Alexander Medvednikov. All rights reserved.
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// Use of this source code is governed by an MIT license
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// that can be found in the LICENSE file.
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@[has_globals]
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module builtin
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// isnil returns true if an object is nil (only for C objects).
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@[inline]
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pub fn isnil(v voidptr) bool {
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return v == 0
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}
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struct VCastTypeIndexName {
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tindex int
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tname string
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}
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// will be filled in cgen
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__global as_cast_type_indexes []VCastTypeIndexName
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// SliceIndex describes one overloaded `[]` index or slice part.
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pub struct SliceIndex {
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pub:
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is_range bool
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value int
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low int
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high int
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has_low bool
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has_high bool
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}
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@[direct_array_access]
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fn __as_cast(obj voidptr, obj_type int, expected_type int) voidptr {
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if obj_type != expected_type {
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mut obj_name := as_cast_type_indexes[0].tname.clone()
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mut expected_name := as_cast_type_indexes[0].tname.clone()
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for x in as_cast_type_indexes {
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if x.tindex == obj_type {
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obj_name = x.tname.clone()
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}
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if x.tindex == expected_type {
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expected_name = x.tname.clone()
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}
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}
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panic('as cast: cannot cast `' + obj_name + '` to `' + expected_name + '`')
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}
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return obj
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}
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@[inline]
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fn __v2_flag_has_int(receiver int, flag int) bool {
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return (receiver & flag) != 0
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}
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@[inline]
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fn __v2_flag_all_int(receiver int, flags int) bool {
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return (receiver & flags) == flags
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}
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