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b92e30ff0b
This change is seemingly insignificant but I actually agonized over this
for three days. Some other things I considered:
* (status quo in master branch) make Compile step creation functions
accept a Target.Query and delete the ResolvedTarget struct.
- downside: redundantly resolve target queries many times
* same as before but additionally add a hash map to cache target query
resolutions.
- downside: now there is a hash map that doesn't actually need to
exist, just to make the API more ergonomic.
* add is_native_os and is_native_abi fields to std.Target and use it
directly as the result of resolving a target query.
- downside: they really don't belong there. They would be available
as comptime booleans via `@import("builtin")` but they should not
be exposed that way.
With this change the downsides are:
* the option name of addExecutable and friends is `target` instead of
`resolved_target` matching the type name.
- upside: this does not break compatibility with existing build
scripts
* you likely end up seeing `target.result.cpu.arch` rather than
`target.cpu.arch`.
- upside: this is an improvement over `target.target.cpu.arch` which
it was before this commit.
- downside: `b.host.target` is now `b.host.result`.
38 lines
1.3 KiB
Zig
38 lines
1.3 KiB
Zig
const std = @import("std");
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pub const requires_macos_sdk = true;
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pub const requires_symlinks = true;
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pub fn build(b: *std.Build) void {
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const test_step = b.step("test", "Test it");
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b.default_step = test_step;
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add(b, test_step, .Debug);
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add(b, test_step, .ReleaseFast);
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add(b, test_step, .ReleaseSmall);
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add(b, test_step, .ReleaseSafe);
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}
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fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.OptimizeMode) void {
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const target = b.resolveTargetQuery(.{ .os_tag = .macos });
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const sdk = std.zig.system.darwin.getSdk(b.allocator, target.result) orelse
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@panic("macOS SDK is required to run the test");
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const exe = b.addExecutable(.{
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.name = "test",
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.optimize = optimize,
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.target = b.host,
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});
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exe.addSystemIncludePath(.{ .path = b.pathJoin(&.{ sdk, "/usr/include" }) });
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exe.addIncludePath(.{ .path = b.pathJoin(&.{ sdk, "/usr/include/c++/v1" }) });
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exe.addCSourceFile(.{ .file = .{ .path = "test.cpp" }, .flags = &.{
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"-nostdlib++",
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"-nostdinc++",
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} });
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exe.addObjectFile(.{ .path = b.pathJoin(&.{ sdk, "/usr/lib/libc++.tbd" }) });
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const run_cmd = b.addRunArtifact(exe);
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run_cmd.expectStdErrEqual("x: 5\n");
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test_step.dependOn(&run_cmd.step);
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}
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