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parser: port zig fmt on/off in middle of code tests

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Port tests:
- "'zig fmt: (off|on)' works in the middle of code"
- "'zig fmt: on' indentation is unchanged"

Handle block-terminated expressions (if, while) that don't need
semicolons by checking if previous token was '}'.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Motiejus Jakštys
2026-02-10 18:26:33 +00:00
parent 2b48992a2f
commit 14fb82109b
2 changed files with 51 additions and 0 deletions
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47
parser_test.zig
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@@ -1869,6 +1869,53 @@ test "zig fmt: doc and line comment following 'zig fmt: on'" {
);
}
test "zig fmt: 'zig fmt: (off|on)' works in the middle of code" {
try testTransform(
\\test "" {
\\ const x = 42;
\\
\\ if (foobar) |y| {
\\ // zig fmt: off
\\ }// zig fmt: on
\\
\\ const z = 420;
\\}
\\
,
\\test "" {
\\ const x = 42;
\\
\\ if (foobar) |y| {
\\ // zig fmt: off
\\ }// zig fmt: on
\\
\\ const z = 420;
\\}
\\
);
}
test "zig fmt: 'zig fmt: on' indentation is unchanged" {
try testCanonical(
\\fn initOptionsAndLayouts(output: *Output, context: *Context) !void {
\\ // zig fmt: off
\\ try output.main_amount.init(output, "main_amount"); errdefer optput.main_amount.deinit();
\\ try output.main_factor.init(output, "main_factor"); errdefer optput.main_factor.deinit();
\\ try output.view_padding.init(output, "view_padding"); errdefer optput.view_padding.deinit();
\\ try output.outer_padding.init(output, "outer_padding"); errdefer optput.outer_padding.deinit();
\\ // zig fmt: on
\\
\\ // zig fmt: off
\\ try output.top.init(output, .top); errdefer optput.top.deinit();
\\ try output.right.init(output, .right); errdefer optput.right.deinit();
\\ try output.bottom.init(output, .bottom); errdefer optput.bottom.deinit();
\\ try output.left.init(output, .left); errdefer optput.left.deinit();
\\ // zig fmt: on
\\}
\\
);
}
test "zig fmt: pointer of unknown length" {
try testCanonical(
\\fn foo(ptr: [*]u8) void {}