mirror of
https://github.com/ziglang/zig.git
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50 lines
1.4 KiB
Zig
50 lines
1.4 KiB
Zig
const expect = @import("std").testing.expect;
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const builtin = @import("builtin");
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test "@hasField" {
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const struc = struct {
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a: i32,
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b: []u8,
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pub const nope = 1;
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};
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try expect(@hasField(struc, "a") == true);
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try expect(@hasField(struc, "b") == true);
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try expect(@hasField(struc, "non-existant") == false);
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try expect(@hasField(struc, "nope") == false);
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const unin = union {
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a: u64,
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b: []u16,
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pub const nope = 1;
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};
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try expect(@hasField(unin, "a") == true);
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try expect(@hasField(unin, "b") == true);
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try expect(@hasField(unin, "non-existant") == false);
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try expect(@hasField(unin, "nope") == false);
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const enm = enum {
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a,
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b,
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pub const nope = 1;
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};
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try expect(@hasField(enm, "a") == true);
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try expect(@hasField(enm, "b") == true);
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try expect(@hasField(enm, "non-existant") == false);
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try expect(@hasField(enm, "nope") == false);
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const anon = @TypeOf(.{ .a = 1 });
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try expect(@hasField(anon, "a") == true);
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try expect(@hasField(anon, "b") == false);
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const tuple = @TypeOf(.{ 1, 2 });
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try expect(@hasField(tuple, "a") == false);
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try expect(@hasField(tuple, "b") == false);
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try expect(@hasField(tuple, "0") == true);
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try expect(@hasField(tuple, "1") == true);
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try expect(@hasField(tuple, "2") == false);
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try expect(@hasField(tuple, "9999999999999999999999999") == false);
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}
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