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fix(minifier): avoid generating invalid spans#15778

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graphite-app[bot] merged 1 commit intomainfrom
11-17-fix_minifier_fix_span_of_concatenated_template_literals
Nov 19, 2025
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fix(minifier): avoid generating invalid spans#15778
graphite-app[bot] merged 1 commit intomainfrom
11-17-fix_minifier_fix_span_of_concatenated_template_literals

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@sapphi-red sapphi-red commented Nov 17, 2025

This debug assertion failed

debug_assert!(self.start <= self.end);

when it's called by
p.add_source_mapping(self.span);

which was caused by
right.span = Span::new(left_expr.span().start, right.span.end);

This PR fixes these kinds of issues. This PR adds a test but does not fail even without the change. I'll fail once #15787 is done.

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sapphi-red commented Nov 17, 2025


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@github-actions github-actions bot added A-minifier Area - Minifier C-bug Category - Bug labels Nov 17, 2025
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codspeed-hq bot commented Nov 17, 2025

CodSpeed Performance Report

Merging #15778 will not alter performance

Comparing 11-17-fix_minifier_fix_span_of_concatenated_template_literals (934dbbb) with 11-19-feat_span_add_span_merge_if_adjacent_method (4d2fc3b)

Summary

✅ 38 untouched
⏩ 7 skipped1

Footnotes

  1. 7 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

@sapphi-red sapphi-red changed the base branch from main to graphite-base/15778 November 19, 2025 11:42
@sapphi-red sapphi-red force-pushed the 11-17-fix_minifier_fix_span_of_concatenated_template_literals branch from 20b0a23 to a40d23d Compare November 19, 2025 11:42
@sapphi-red sapphi-red changed the base branch from graphite-base/15778 to 11-19-feat_span_add_span_merge_if_adjacent_method November 19, 2025 11:42
@sapphi-red sapphi-red force-pushed the 11-17-fix_minifier_fix_span_of_concatenated_template_literals branch 2 times, most recently from 3a86d9c to 1753fcb Compare November 19, 2025 12:08
@sapphi-red sapphi-red force-pushed the 11-19-feat_span_add_span_merge_if_adjacent_method branch from 5bb2097 to 4d2fc3b Compare November 19, 2025 12:08
@sapphi-red sapphi-red force-pushed the 11-17-fix_minifier_fix_span_of_concatenated_template_literals branch from 1753fcb to 934dbbb Compare November 19, 2025 12:10
@sapphi-red sapphi-red marked this pull request as ready for review November 19, 2025 12:14
@sapphi-red sapphi-red requested a review from Boshen November 19, 2025 12:14
@sapphi-red sapphi-red changed the title fix(minifier): fix span of concatenated template literals fix(minifier): avoid generating invalid spans Nov 19, 2025
@Boshen Boshen added the 0-merge Merge with Graphite Merge Queue label Nov 19, 2025
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Boshen commented Nov 19, 2025

Merge activity

graphite-app bot pushed a commit that referenced this pull request Nov 19, 2025
Add `Span::merge_within` method that creates a connected Span that is covered by both Spans if they are within a specified Span. The bug described in the OP of #15778 is caused by trying to create a Span assuming that the Spans are adjacent. This method would avoid that kind of issue.
@graphite-app graphite-app bot force-pushed the 11-19-feat_span_add_span_merge_if_adjacent_method branch from 3b5c907 to 6cff132 Compare November 19, 2025 14:03
@graphite-app graphite-app bot force-pushed the 11-17-fix_minifier_fix_span_of_concatenated_template_literals branch from 934dbbb to f386efc Compare November 19, 2025 14:03
Base automatically changed from 11-19-feat_span_add_span_merge_if_adjacent_method to main November 19, 2025 14:08
@graphite-app graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Nov 19, 2025
@graphite-app graphite-app bot merged commit f386efc into main Nov 19, 2025
21 checks passed
@graphite-app graphite-app bot deleted the 11-17-fix_minifier_fix_span_of_concatenated_template_literals branch November 19, 2025 14:09
overlookmotel pushed a commit that referenced this pull request Nov 24, 2025
### 💥 BREAKING CHANGES

- cbb27fd ast: [**BREAKING**] Add `TSGlobalDeclaration` type (#15712)
(overlookmotel)

### 🚀 Features

- 0c1f82b linter/plugins: Add `tokens` property to `Program` (#16020)
(overlookmotel)
- 6cff132 span: Add `Span::merge_within` method (#15869) (sapphi-red)
- 102365d allocator/vec: Add `Vec::into_bump_slice` method (#15770)
(Dunqing)

### 🐛 Bug Fixes

- e2ca770 codegen: Add support for printing type arguments in new
expressions (#15963) (Ives van Hoorne)
- 2bd3cb6 apps, editors, napi: Fix `oxlint-disable` comments (#16014)
(overlookmotel)
- 622cb5e parser: Preserve legal comments with @preserve/@license when
preceded by other annotations (#15929) (copilot-swe-agent)
- 7c46a9e transformer/tagged-template-transform: Handle `\n` escape
sequences (#15830) (Dunqing)
- f386efc minifier: Avoid generating invalid spans (#15778) (sapphi-red)
- d4ff004 parser: Forbid invalid modifiers on `module` and `global`
(#15723) (overlookmotel)
- 2191ae9 semantic: Allow reserved keywords in typescript ambient
contexts (#15495) (sapphi-red)
- 7d1ebad isolated-declarations: Incorrect nested namespace output in
isolated declarations (#15800) (copilot-swe-agent)

### ⚡ Performance

- b4b0ed8 transformer/typescript: Reverse order of checks (#15722)
(overlookmotel)

### 📚 Documentation

- c81a331 data_structures: Doc comments on fields of `Stack` (#15793)
(overlookmotel)
- cfae31d allocator: Use `allocator` as var name in examples (#15781)
(overlookmotel)

Co-authored-by: Boshen <[email protected]>
taearls pushed a commit to taearls/oxc that referenced this pull request Dec 11, 2025
Add `Span::merge_within` method that creates a connected Span that is covered by both Spans if they are within a specified Span. The bug described in the OP of oxc-project#15778 is caused by trying to create a Span assuming that the Spans are adjacent. This method would avoid that kind of issue.
taearls pushed a commit to taearls/oxc that referenced this pull request Dec 11, 2025
### 💥 BREAKING CHANGES

- cbb27fd ast: [**BREAKING**] Add `TSGlobalDeclaration` type (oxc-project#15712)
(overlookmotel)

### 🚀 Features

- 0c1f82b linter/plugins: Add `tokens` property to `Program` (oxc-project#16020)
(overlookmotel)
- 6cff132 span: Add `Span::merge_within` method (oxc-project#15869) (sapphi-red)
- 102365d allocator/vec: Add `Vec::into_bump_slice` method (oxc-project#15770)
(Dunqing)

### 🐛 Bug Fixes

- e2ca770 codegen: Add support for printing type arguments in new
expressions (oxc-project#15963) (Ives van Hoorne)
- 2bd3cb6 apps, editors, napi: Fix `oxlint-disable` comments (oxc-project#16014)
(overlookmotel)
- 622cb5e parser: Preserve legal comments with @preserve/@license when
preceded by other annotations (oxc-project#15929) (copilot-swe-agent)
- 7c46a9e transformer/tagged-template-transform: Handle `\n` escape
sequences (oxc-project#15830) (Dunqing)
- f386efc minifier: Avoid generating invalid spans (oxc-project#15778) (sapphi-red)
- d4ff004 parser: Forbid invalid modifiers on `module` and `global`
(oxc-project#15723) (overlookmotel)
- 2191ae9 semantic: Allow reserved keywords in typescript ambient
contexts (oxc-project#15495) (sapphi-red)
- 7d1ebad isolated-declarations: Incorrect nested namespace output in
isolated declarations (oxc-project#15800) (copilot-swe-agent)

### ⚡ Performance

- b4b0ed8 transformer/typescript: Reverse order of checks (oxc-project#15722)
(overlookmotel)

### 📚 Documentation

- c81a331 data_structures: Doc comments on fields of `Stack` (oxc-project#15793)
(overlookmotel)
- cfae31d allocator: Use `allocator` as var name in examples (oxc-project#15781)
(overlookmotel)

Co-authored-by: Boshen <[email protected]>
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