mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 07:32:44 +00:00
116 lines
3.1 KiB
Zig
116 lines
3.1 KiB
Zig
const builtin = @import("builtin");
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const std = @import("std");
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const expect = std.testing.expect;
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const HasFuncs = struct {
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state: u32,
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func_field: *const fn (u32) u32,
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fn inc(self: *HasFuncs) void {
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self.state += 1;
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}
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fn get(self: HasFuncs) u32 {
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return self.state;
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}
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fn getPtr(self: *const HasFuncs) *const u32 {
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return &self.state;
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}
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fn one(_: u32) u32 {
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return 1;
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}
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fn two(_: u32) u32 {
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return 2;
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}
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};
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test "standard field calls" {
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if (builtin.zig_backend == .stage1) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
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try expect(HasFuncs.one(0) == 1);
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try expect(HasFuncs.two(0) == 2);
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var v: HasFuncs = undefined;
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v.state = 0;
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v.func_field = HasFuncs.one;
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const pv = &v;
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const pcv: *const HasFuncs = pv;
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try expect(v.get() == 0);
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v.inc();
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try expect(v.state == 1);
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try expect(v.get() == 1);
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pv.inc();
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try expect(v.state == 2);
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try expect(pv.get() == 2);
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try expect(v.getPtr().* == 2);
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try expect(pcv.get() == 2);
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try expect(pcv.getPtr().* == 2);
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v.func_field = HasFuncs.one;
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try expect(v.func_field(0) == 1);
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try expect(pv.func_field(0) == 1);
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try expect(pcv.func_field(0) == 1);
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try expect(pcv.func_field(blk: {
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pv.func_field = HasFuncs.two;
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break :blk 0;
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}) == 1);
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v.func_field = HasFuncs.two;
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try expect(v.func_field(0) == 2);
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try expect(pv.func_field(0) == 2);
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try expect(pcv.func_field(0) == 2);
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}
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test "@field field calls" {
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if (builtin.zig_backend == .stage1) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
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try expect(@field(HasFuncs, "one")(0) == 1);
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try expect(@field(HasFuncs, "two")(0) == 2);
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var v: HasFuncs = undefined;
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v.state = 0;
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v.func_field = HasFuncs.one;
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const pv = &v;
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const pcv: *const HasFuncs = pv;
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try expect(@field(v, "get")() == 0);
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@field(v, "inc")();
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try expect(v.state == 1);
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try expect(@field(v, "get")() == 1);
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@field(pv, "inc")();
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try expect(v.state == 2);
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try expect(@field(pv, "get")() == 2);
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try expect(@field(v, "getPtr")().* == 2);
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try expect(@field(pcv, "get")() == 2);
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try expect(@field(pcv, "getPtr")().* == 2);
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v.func_field = HasFuncs.one;
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try expect(@field(v, "func_field")(0) == 1);
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try expect(@field(pv, "func_field")(0) == 1);
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try expect(@field(pcv, "func_field")(0) == 1);
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try expect(@field(pcv, "func_field")(blk: {
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pv.func_field = HasFuncs.two;
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break :blk 0;
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}) == 1);
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v.func_field = HasFuncs.two;
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try expect(@field(v, "func_field")(0) == 2);
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try expect(@field(pv, "func_field")(0) == 2);
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try expect(@field(pcv, "func_field")(0) == 2);
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}
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