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docs(mangler): fix top_level option in example#18233

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docs(mangler): fix top_level option in example#18233
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@overlookmotel overlookmotel commented Jan 19, 2026

Presumably it's safe to mangle top-level symbols in CommonJS files. Alter the mangler example to do that.

Previously, we had no way to distinguish between script and CommonJS file types. After #18089 introduced a commonjs source type, we now do.

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Pull request overview

This PR updates the mangler example to enable top-level symbol mangling for CommonJS files. Previously, only ES modules had top-level mangling enabled. With the introduction of the commonjs source type in #18089, the code now distinguishes between script files (where top-level mangling should be disabled) and module/CommonJS files (where it's safe).

Changes:

  • Updated mangler example to use !source_type.is_script() instead of source_type.is_module() for determining when to enable top-level mangling

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@Boshen Boshen added the 0-merge Merge with Graphite Merge Queue label Jan 19, 2026
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Boshen commented Jan 19, 2026

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Presumably it's safe to mangle top-level symbols in CommonJS files. Alter the mangler example to do that.

Previously, we had no way to distinguish between script and CommonJS file types. After #18089 introduced a `commonjs` source type, we now do.
@graphite-app graphite-app bot force-pushed the om/01-19-docs_mangler_fix_top_level_option_in_example branch from 02c8e01 to 00ff75f Compare January 19, 2026 13:52
@graphite-app graphite-app bot merged commit 00ff75f into main Jan 19, 2026
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@graphite-app graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Jan 19, 2026
@graphite-app graphite-app bot deleted the om/01-19-docs_mangler_fix_top_level_option_in_example branch January 19, 2026 13:58
overlookmotel pushed a commit that referenced this pull request Jan 26, 2026
### 💥 BREAKING CHANGES

- 22dec6a semantic: [**BREAKING**] Remove
`Scoping::scope_build_child_ids` and all related APIs (#18362) (Dunqing)
- 30a4899 oxc: [**BREAKING**] Remove
`CompilerInterface::semantic_child_scope_ids` (#18361) (Dunqing)
- 777fc40 ast: [**BREAKING**] Add `Ident` type (#18354) (Boshen)
- af0ca46 span: [**BREAKING**] Use `ModuleKind::CommonJS` for
`SourceType::cjs()` (#18276) (sapphi-red)

### 🚀 Features

- 0a02026 semantic: Add TS1499 code to diagnostic (#18557) (camc314)
- 8b4618f parser: Add TS1500 code to diagnostic (#18547) (camc314)
- 866b6b3 parser: Add TS1048 code to diagnostic (#18546) (camc314)
- 1117c44 parser: Add TS1054 code to diagnostic (#18541) (camc314)
- e4fcdde semantic: Add TS1053 code to diagnostic (#18539) (camc314)
- bcbf396 semantic: Add TS1052 code to diagnostic (#18538) (camc314)
- 8155edf semantic: Add TS1049 code to diagnostic (#18535) (camc314)
- 51d3b3f parser: Add TS1502 code to diagnostic (#18534) (camc314)
- 00854e8 semantic: Add TS2337 error code to super call diagnostic
(#18531) (camc314)
- 993fd2b parser: Parse unambiguous await with better error messages
(#18480) (Boshen)
- 8db0e78 linter/plugins: Handle BOMs (#18376) (overlookmotel)
- 6ac09e2 linter/plugins: Support source text not being at start of
buffer (#18375) (overlookmotel)
- 2ef5647 ast: Add escape_raw parameter to template_element builders
(#18121) (Boshen)

### 🐛 Bug Fixes

- 74d0998 semantic: Update error msg for multiple `default` cases in
switch stmt (#18526) (camc314)
- c205b0d ast: Remove `ThisExpression` from `TSModuleReference` (#18489)
(Boshen)
- aed3669 parser: Parse HTML-like comments in unambiguous mode (#18442)
(Boshen)
- c4132fb parser: Validate accessor parameters in interface method
signatures (#18391) (Boshen)
- b0cd74d semantic: Allow `var` and `function` with same name in static
blocks (#18358) (Boshen)
- 6037995 semantic: Allow `new.target` in class field initializers
(#18349) (Boshen)
- 9a15c6a semantic: Do not rely on spans for node comparison in
`Function::bind` (#18296) (overlookmotel)

### ⚡ Performance

- 6b600c4 semantic: Skip parent lookup for function declarations in
`Function::bind` (#18293) (overlookmotel)
- c27ad2d semantic: Move check for function declaration out of
`is_function_part_of_if_statement` (#18292) (overlookmotel)
- 63eb89e semantic: Skip checking redeclarations for function
expressions (#18291) (overlookmotel)
- 7c12743 semantic: Skip checking unresolved exports in CommonJS files
(#18250) (overlookmotel)
- 2349031 allocator: Increase initial chunk size from 512B to 16KB
(#18234) (Boshen)

### 📚 Documentation

- 8ccd853 npm: Update package homepage URLs and add keywords (#18509)
(Boshen)
- 9b3165f napi/parser: Clarify when to use `parseAsync` vs `parseSync`
(#18486) (Boshen)
- 1b59f63 napi/parser: Correct typo in README (#18251) (overlookmotel)
- 00ff75f mangler: Fix `top_level` option in example (#18233)
(overlookmotel)
- 2ddc073 semantic: Fix typo in comment (#18238) (overlookmotel)

Co-authored-by: Boshen <[email protected]>
graphite-app bot pushed a commit that referenced this pull request Feb 6, 2026
#18278)

I think we can enable `top_level` by default.

refs #18233
OskarLebuda pushed a commit to OskarLebuda/oxc that referenced this pull request Feb 17, 2026
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