zig/test/behavior/usingnamespace.zig
2024-01-06 16:49:41 -08:00

100 lines
2.2 KiB
Zig

const std = @import("std");
const builtin = @import("builtin");
const expect = std.testing.expect;
const A = struct {
pub const B = bool;
};
const C = struct {
usingnamespace A;
};
test "basic usingnamespace" {
try std.testing.expect(C.B == bool);
}
fn Foo(comptime T: type) type {
return struct {
usingnamespace T;
};
}
test "usingnamespace inside a generic struct" {
const std2 = Foo(std);
const testing2 = Foo(std.testing);
try std2.testing.expect(true);
try testing2.expect(true);
}
usingnamespace struct {
pub const foo = 42;
};
test "usingnamespace does not redeclare an imported variable" {
try comptime std.testing.expect(@This().foo == 42);
}
usingnamespace @import("usingnamespace/foo.zig");
test "usingnamespace omits mixing in private functions" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
try expect(@This().privateFunction());
try expect(!@This().printText());
}
fn privateFunction() bool {
return true;
}
test {
_ = @import("usingnamespace/import_segregation.zig");
}
usingnamespace @import("usingnamespace/a.zig");
test "two files usingnamespace import each other" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
try expect(@This().ok());
}
test {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
const AA = struct {
x: i32,
fn b(x: i32) @This() {
return .{ .x = x };
}
fn c() type {
return if (true) struct {
const expected: i32 = 42;
} else struct {};
}
usingnamespace c();
};
const a = AA.b(42);
try expect(a.x == AA.c().expected);
}
comptime {
_ = @import("usingnamespace/file_1.zig");
}
const Bar = struct {
usingnamespace Mixin;
};
const Mixin = struct {
pub fn two(self: Bar) void {
_ = self;
}
};
test "container member access usingnamespace decls" {
var foo = Bar{};
foo.two();
}