1const std = @import("std");
 2
 3pub fn build(b: *std.Build) void {
 4    const test_step = b.step("test", "Test it");
 5    b.default_step = test_step;
 6
 7    add(b, test_step, .Debug);
 8}
 9
10fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.OptimizeMode) void {
11    const no_export = b.addExecutable(.{
12        .name = "no-export",
13        .root_module = b.createModule(.{
14            .root_source_file = b.path("main-hidden.zig"),
15            .optimize = optimize,
16            .target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
17        }),
18    });
19    no_export.entry = .disabled;
20    no_export.use_llvm = false;
21    no_export.use_lld = false;
22    // Don't pull in ubsan, since we're just expecting a very minimal executable.
23    no_export.bundle_ubsan_rt = false;
24
25    const dynamic_export = b.addExecutable(.{
26        .name = "dynamic",
27        .root_module = b.createModule(.{
28            .root_source_file = b.path("main.zig"),
29            .optimize = optimize,
30            .target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
31        }),
32    });
33    dynamic_export.entry = .disabled;
34    dynamic_export.rdynamic = true;
35    dynamic_export.use_llvm = false;
36    dynamic_export.use_lld = false;
37    // Don't pull in ubsan, since we're just expecting a very minimal executable.
38    dynamic_export.bundle_ubsan_rt = false;
39
40    const force_export = b.addExecutable(.{
41        .name = "force",
42        .root_module = b.createModule(.{
43            .root_source_file = b.path("main-hidden.zig"),
44            .optimize = optimize,
45            .target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
46        }),
47    });
48    force_export.entry = .disabled;
49    force_export.root_module.export_symbol_names = &.{"foo"};
50    force_export.use_llvm = false;
51    force_export.use_lld = false;
52    // Don't pull in ubsan, since we're just expecting a very minimal executable.
53    force_export.bundle_ubsan_rt = false;
54
55    const check_no_export = no_export.checkObject();
56    check_no_export.checkInHeaders();
57    check_no_export.checkExact("Section export");
58    check_no_export.checkExact("entries 1");
59    check_no_export.checkExact("name memory");
60    check_no_export.checkExact("kind memory");
61
62    const check_dynamic_export = dynamic_export.checkObject();
63    check_dynamic_export.checkInHeaders();
64    check_dynamic_export.checkExact("Section export");
65    check_dynamic_export.checkExact("entries 2");
66    check_dynamic_export.checkExact("name foo");
67    check_dynamic_export.checkExact("kind function");
68
69    const check_force_export = force_export.checkObject();
70    check_force_export.checkInHeaders();
71    check_force_export.checkExact("Section export");
72    check_force_export.checkExact("entries 2");
73    check_force_export.checkExact("name foo");
74    check_force_export.checkExact("kind function");
75
76    test_step.dependOn(&check_no_export.step);
77    test_step.dependOn(&check_dynamic_export.step);
78    test_step.dependOn(&check_force_export.step);
79}