From 06ee383da9a23016dcb25ff7cb6811e3dc2c387e Mon Sep 17 00:00:00 2001
From: Mason Remaley <mason@anthropicstudios.com>
Date: Sat, 15 Feb 2025 15:42:59 -0800
Subject: compiler: allow `@import` of ZON without a result type

In particular, this allows importing `build.zig.zon` at comptime.
---
 test/behavior/zon.zig           | 54 +++++++++++++++++++++++++++++++++++++++++
 test/behavior/zon/anon.zon      | 16 ++++++++++++
 test/behavior/zon/build.zig.zon | 20 +++++++++++++++
 3 files changed, 90 insertions(+)
 create mode 100644 test/behavior/zon/anon.zon
 create mode 100644 test/behavior/zon/build.zig.zon

(limited to 'test/behavior')

diff --git a/test/behavior/zon.zig b/test/behavior/zon.zig
index 2003a87600..8a43b4894e 100644
--- a/test/behavior/zon.zig
+++ b/test/behavior/zon.zig
@@ -517,3 +517,57 @@ test "recursive" {
     const expected: Recursive = .{ .foo = &.{ .foo = null } };
     try expectEqualDeep(expected, @as(Recursive, @import("zon/recursive.zon")));
 }
+
+test "anon" {
+    const expected = .{
+        .{
+            .bool_true = true,
+            .bool_false = false,
+            .string = "foo",
+        },
+        .{
+            null,
+            10,
+            36893488147419103232,
+            1.234,
+            'z',
+            .bar,
+            .{},
+        },
+    };
+
+    const actual = @import("zon/anon.zon");
+    try expectEqual(expected.len, actual.len);
+    try expectEqual(expected[1], actual[1]);
+    const expected_struct = expected[0];
+    const actual_struct = actual[0];
+    const expected_fields = @typeInfo(@TypeOf(expected_struct)).@"struct".fields;
+    const actual_fields = @typeInfo(@TypeOf(actual_struct)).@"struct".fields;
+    try expectEqual(expected_fields.len, actual_fields.len);
+    inline for (expected_fields) |field| {
+        try expectEqual(@field(expected_struct, field.name), @field(actual_struct, field.name));
+    }
+}
+
+test "build.zig.zon" {
+    const build = @import("zon/build.zig.zon");
+
+    try expectEqual(4, @typeInfo(@TypeOf(build)).@"struct".fields.len);
+    try expectEqualStrings("temp", build.name);
+    try expectEqualStrings("0.0.0", build.version);
+
+    const dependencies = build.dependencies;
+    try expectEqual(2, @typeInfo(@TypeOf(dependencies)).@"struct".fields.len);
+
+    const example_0 = dependencies.example_0;
+    try expectEqual(2, @typeInfo(@TypeOf(dependencies)).@"struct".fields.len);
+    try expectEqualStrings("https://example.com/foo.tar.gz", example_0.url);
+    try expectEqualStrings("...", example_0.hash);
+
+    const example_1 = dependencies.example_1;
+    try expectEqual(2, @typeInfo(@TypeOf(dependencies)).@"struct".fields.len);
+    try expectEqualStrings("../foo", example_1.path);
+    try expectEqual(false, example_1.lazy);
+
+    try expectEqual(.{ "build.zig", "build.zig.zon", "src" }, build.paths);
+}
diff --git a/test/behavior/zon/anon.zon b/test/behavior/zon/anon.zon
new file mode 100644
index 0000000000..6a434cf627
--- /dev/null
+++ b/test/behavior/zon/anon.zon
@@ -0,0 +1,16 @@
+.{
+    .{
+        .bool_true = true,
+        .bool_false = false,
+        .string = "foo",
+    },
+    .{
+        null,
+        10,
+        36893488147419103232,
+        1.234,
+        'z',
+        .bar,
+        .{},
+    },
+}
diff --git a/test/behavior/zon/build.zig.zon b/test/behavior/zon/build.zig.zon
new file mode 100644
index 0000000000..b77d742549
--- /dev/null
+++ b/test/behavior/zon/build.zig.zon
@@ -0,0 +1,20 @@
+.{
+    // Comment
+    .name = "temp",
+    .version = "0.0.0",
+    .dependencies = .{
+        .example_0 = .{
+            .url = "https://example.com/foo.tar.gz",
+            .hash = "...",
+        },
+        .example_1 = .{
+            .path = "../foo",
+            .lazy = false,
+        },
+    },
+    .paths = .{
+        "build.zig",
+        "build.zig.zon",
+        "src",
+    },
+}
-- 
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