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refactor(data_structures): add debug assertion to CodeBuffer::peek_nth_char_back and improve safety docs #9336

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overlookmotel
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@overlookmotel overlookmotel commented Feb 24, 2025

Add debug assertion and improve safety docs for CodeBuffer.

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overlookmotel commented Feb 24, 2025


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@overlookmotel overlookmotel marked this pull request as ready for review February 24, 2025 16:56
@github-actions github-actions bot added the C-cleanup Category - technical debt or refactoring. Solution not expected to change behavior label Feb 24, 2025
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codspeed-hq bot commented Feb 24, 2025

CodSpeed Performance Report

Merging #9336 will not alter performance

Comparing 02-24-refactor_data_structures_add_debug_assertion_to_codebuffer_peek_nth_char_back_and_improve_safety_docs (6a4e892) with main (fc46218)

Summary

✅ 33 untouched benchmarks

@overlookmotel overlookmotel changed the base branch from 02-24-perf_data_structures_ast_estree_add_codebuffer_print_bytes_iter_unchecked_method_and_use_it_in_estree_serializer to graphite-base/9336 February 24, 2025 17:20
@overlookmotel overlookmotel force-pushed the 02-24-refactor_data_structures_add_debug_assertion_to_codebuffer_peek_nth_char_back_and_improve_safety_docs branch from c6ce00e to 8c93db0 Compare February 24, 2025 17:20
@overlookmotel overlookmotel changed the base branch from graphite-base/9336 to 02-23-refactor_data_structures_codebuffer_print_str_use_vec_extend_from_slice_ February 24, 2025 17:21
@overlookmotel overlookmotel force-pushed the 02-24-refactor_data_structures_add_debug_assertion_to_codebuffer_peek_nth_char_back_and_improve_safety_docs branch from 8c93db0 to a86b061 Compare February 24, 2025 17:40
@Boshen Boshen changed the base branch from 02-23-refactor_data_structures_codebuffer_print_str_use_vec_extend_from_slice_ to graphite-base/9336 February 25, 2025 04:33
@graphite-app graphite-app bot added the 0-merge Merge with Graphite Merge Queue label Feb 25, 2025
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graphite-app bot commented Feb 25, 2025

Merge activity

@graphite-app graphite-app bot changed the base branch from graphite-base/9336 to main February 25, 2025 04:38
…th_char_back` and improve safety docs (#9336)

Add debug assertion and improve safety docs for `CodeBuffer`.
@graphite-app graphite-app bot force-pushed the 02-24-refactor_data_structures_add_debug_assertion_to_codebuffer_peek_nth_char_back_and_improve_safety_docs branch from a86b061 to 6a4e892 Compare February 25, 2025 04:39
@graphite-app graphite-app bot merged commit 6a4e892 into main Feb 25, 2025
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@graphite-app graphite-app bot deleted the 02-24-refactor_data_structures_add_debug_assertion_to_codebuffer_peek_nth_char_back_and_improve_safety_docs branch February 25, 2025 04:46
Boshen added a commit that referenced this pull request Feb 26, 2025
## [0.53.0] - 2025-02-26

- #9289
- 4a5a7cf napi/parser: [**BREAKING**] Remove magic string; enable utf16
span converter by default (#9291) (Boshen)

### Features

- 5c775ea ast/estree: Enable serialization without TS fields (#9285)
(overlookmotel)
- f21740e data_structures: Add `CodeBuffer::print_bytes_iter_unchecked`
method (#9337) (overlookmotel)
- e10fb97 ecmascript: Improve may_have_side_effects for `.length`
(#9366) (sapphi-red)
- 35e5ca9 ecmascript: Improve may_have_side_effects for `instanceof`
(#9365) (sapphi-red)
- 11012c6 ecmascript: Improve ValueType for coalesce operator (#9354)
(sapphi-red)
- b7998fd ecmascript: To_number for object without toString (#9353)
(sapphi-red)
- e51d563 minifier: Concatenate strings with template literals on right
side (#9356) (sapphi-red)
- 9d7db54 minifier: Concatenate strings with template literals (#9355)
(sapphi-red)
- 835ee95 wasm: Return estree with utf16 span offsets (#9376) (Boshen)

### Bug Fixes

- 6a8f53f ast/estree: Visit `JSXOpeningFragment` and
`JSXClosingFragment` (#9342) (overlookmotel)
- e303767 ast/estree: Fix ESTree AST for imports and exports (#9282)
(overlookmotel)
- 54d59f1 data_structures: Stack types correctly report allocation size
if allocation failure during grow (#9317) (overlookmotel)
- f5c8698 ecmascript: Correct may_have_side_effects for classes (#9367)
(sapphi-red)
- d3ed128 minifier: Do not remove `=== 0` if the lhs can be NaN (#9352)
(sapphi-red)

### Performance

- 82adab9 ast/estree: Speed up building UTF8-UTF16 translation table
with SIMD (#9359) (overlookmotel)
- 61939ca ast/estree: Faster UTF-8 to UTF-16 span conversion (#9349)
(overlookmotel)
- 1bfc459 ast/estree: Pre-allocate `CodeBuffer` for JSON output (#9340)
(overlookmotel)
- 018c523 ast/estree: `ESTree` serializer use `CodeBuffer` (#9331)
(overlookmotel)
- 35ee399 codegen: Use `iter::repeat_n` in `CodeBuffer` (#9325)
(overlookmotel)

### Documentation

- 8bd3e39 data_structures: Uppercase SAFETY comments (#9330)
(overlookmotel)

### Refactor

- d94fc15 allocator: Reduce scope of `unsafe` blocks (#9319)
(overlookmotel)
- 7427900 ast: Re-order `ExportDefaultDeclaration` fields (#9348)
(overlookmotel)
- b09249c ast/estree: Rename serializers and serialization methods
(#9284) (overlookmotel)
- 55ed1df ast/estree: Shorten `ESTree` impls for enums (#9275)
(overlookmotel)
- 9d98444 codegen, data_structures: Move `CodeBuffer` into
`oxc_data_structures` crate (#9326) (overlookmotel)
- 6a4e892 data_structures: Add debug assertion to
`CodeBuffer::peek_nth_char_back` and improve safety docs (#9336)
(overlookmotel)
- fc46218 data_structures: `CodeBuffer::print_str` use
`Vec::extend_from_slice` (#9332) (overlookmotel)
- 690bae5 data_structures: Stack types const assert `T` is not zero-size
type (#9318) (overlookmotel)
- 10ba2ea data_structures: Reduce scope of `unsafe` blocks (#9316)
(overlookmotel)
- beb8382 data_structures: `CodeBuffer::print_bytes_unchecked` take a
byte slice (#9327) (overlookmotel)
- faf966f ecmascript: Don't check side effects in constant_evaluation
(#9122) (sapphi-red)
- 2faabe1 estree: Make `itoa` dependency optional (#9338)
(overlookmotel)
- 4e9e8cf lexer: Reduce scope of `unsafe` blocks (#9320) (overlookmotel)
- c31b53f mangler: Reduce scope of `unsafe` blocks (#9321)
(overlookmotel)
- f10a6da mangler: Move base54 into seperate mod (#9278) (Cameron)
- 12e89e0 syntax: Reduce scope of `unsafe` blocks (#9322)
(overlookmotel)
- f39be5f traverse: Reduce scope of `unsafe` blocks (#9323)
(overlookmotel)

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
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