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perf(ast): move_expression and move_statement produce dummy with no span #7995

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overlookmotel
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@overlookmotel overlookmotel commented Dec 18, 2024

The purpose of AstBuilder::move_* methods is to create dummy nodes which will later be replaced again. Give the dummy nodes empty spans as it's faster, and no point in them having a real span.

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overlookmotel commented Dec 18, 2024


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@github-actions github-actions bot added A-ast Area - AST C-performance Category - Solution not expected to change functional behavior, only performance labels Dec 18, 2024
@overlookmotel overlookmotel marked this pull request as ready for review December 18, 2024 15:03
@overlookmotel overlookmotel changed the base branch from 12-18-docs_ast_improve_docs_for_astbuilder_move__methods to graphite-base/7995 December 18, 2024 15:07
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codspeed-hq bot commented Dec 18, 2024

CodSpeed Performance Report

Merging #7995 will not alter performance

Comparing 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span (c0dd3f8) with main (f1adf9f)

Summary

✅ 29 untouched benchmarks

@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from 8826f46 to 570e7d0 Compare December 18, 2024 15:12
@overlookmotel overlookmotel changed the base branch from graphite-base/7995 to main December 18, 2024 15:13
@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from 570e7d0 to b92cefd Compare December 18, 2024 15:13
@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch 3 times, most recently from c684aa1 to 088e815 Compare December 18, 2024 23:11
@overlookmotel overlookmotel changed the base branch from main to 12-18-feat_ast_add_astbulder_move_property_key_ December 18, 2024 23:11
@overlookmotel overlookmotel changed the base branch from 12-18-feat_ast_add_astbulder_move_property_key_ to graphite-base/7995 December 18, 2024 23:17
@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from 088e815 to 3df6665 Compare December 18, 2024 23:22
@overlookmotel overlookmotel changed the base branch from graphite-base/7995 to main December 18, 2024 23:23
@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from 3df6665 to abcdf6b Compare December 18, 2024 23:23
@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from abcdf6b to d0a2649 Compare December 19, 2024 20:50
@overlookmotel overlookmotel changed the base branch from main to 12-19-feat_transformer_class-properties_exit_faster_from_super_replacement_visitor December 19, 2024 20:50
@overlookmotel overlookmotel force-pushed the 12-19-feat_transformer_class-properties_exit_faster_from_super_replacement_visitor branch from 957ae5b to ebdfe1b Compare December 19, 2024 22:22
@overlookmotel overlookmotel force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from d0a2649 to deb6c60 Compare December 19, 2024 22:23
@graphite-app graphite-app bot added the 0-merge Merge with Graphite Merge Queue label Dec 20, 2024
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graphite-app bot commented Dec 20, 2024

Merge activity

…no span (#7995)

The purpose of `AstBuilder::move_*` methods is to create dummy nodes which will later be replaced again. Give the dummy nodes empty spans as it's faster, and no point in them having a real span.
@Dunqing Dunqing force-pushed the 12-19-feat_transformer_class-properties_exit_faster_from_super_replacement_visitor branch from ebdfe1b to 897a1a8 Compare December 20, 2024 03:11
@Dunqing Dunqing force-pushed the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch from deb6c60 to c0dd3f8 Compare December 20, 2024 03:11
Base automatically changed from 12-19-feat_transformer_class-properties_exit_faster_from_super_replacement_visitor to main December 20, 2024 03:26
@graphite-app graphite-app bot merged commit c0dd3f8 into main Dec 20, 2024
27 checks passed
@graphite-app graphite-app bot deleted the 12-18-perf_ast_move_expression_and_move_statement_produce_dummy_with_no_span branch December 20, 2024 03:37
Boshen added a commit that referenced this pull request Dec 21, 2024
## [0.43.0] - 2024-12-21

- de4c772 traverse: [**BREAKING**] Rename `Ancestor::is_via_*` methods
to `is_parent_of_*` (#8031) (overlookmotel)

- ed75e42 semantic: [**BREAKING**] Make SymbolTable fields `pub(crate)`
instead of `pub` (#7999) (Boshen)

### Features

- 75b775c allocator: `Vec<u8>::into_string` (#8017) (overlookmotel)
- 8547e02 ast: Implement `allocator_api2` for `Allocator` (#8043)
(Boshen)
- 63a95e4 ast: Add `AstBulder::move_property_key` (#7998)
(overlookmotel)
- 897a1a8 transformer/class-properties: Exit faster from super
replacement visitor (#8028) (overlookmotel)
- 3ea4109 transformer/class-properties: Transform super update
expressions within static prop initializer (#7997) (Dunqing)
- cc57db3 transformer/class-properties: Transform super assignment
expressions within static prop initializer (#7991) (Dunqing)
- 6b6444b traverse: Record current block scope (#8007) (overlookmotel)

### Bug Fixes

- 043252d transformer/class-properties: Replace `this` and class name in
static blocks (#8035) (overlookmotel)
- 273795d transformer/class-properties: Run other transforms on static
properties, static blocks, and computed keys (#7982) (overlookmotel)

### Performance

- c0dd3f8 ast: `move_expression` and `move_statement` produce dummy with
no span (#7995) (overlookmotel)
- 862838f codegen: Remove useless to_owned (#8014) (Dunqing)
- 2736657 semantic: Allocate `UnresolvedReferences` in allocator (#8046)
(Boshen)
- 2e8872c semantic: Allocate child scope in allocator (#8045) (Boshen)
- 414e828 semantic: Allocate symbol data in Allocator (#8012) (Boshen)
- 7aebed0 semantic: Allocate `Bindings` in allocator (#8021) (Boshen)
- 0f9308f transformer/react-refresh: Reduce allocations (#8018)
(overlookmotel)
- 0deb9e6 transformer/react-refresh: Reserve capacity in hook key string
(#8016) (overlookmotel)
- 7b70347 transformer/react-refresh: Avoid allocating string in each
hook call (#8013) (Dunqing)

### Documentation

- df5c341 ast: Improve docs for `AstBuilder::move_*` methods (#7994)
(overlookmotel)

### Refactor

- f1adf9f semantic: `ScopeTree::rename_binding` remove old binding first
(#8020) (overlookmotel)
- 02f968d semantic: Change `Bindings` to a plain `FxHashMap` (#8019)
(Boshen)
- e7476a1 semantic: Remove `serialize` (#8015) (Boshen)
- 1cf7b83 semantic: Simplify handling namespace stack (#7987) (Dunqing)
- 48cb52b semantic: Remove resetting `current_reference_flags` in visit
functions (#7986) (Dunqing)
- 3250a47 semantic: Remove unused current_symbol_flags (#7985) (Dunqing)
- efe96ec semantic: Use `Stack` for function stack node ids (#7984)
(Dunqing)
- ac097e9 transformer/class-properties: Rename file (#8036)
(overlookmotel)
- 059a5dd transformer/class-properties: Do not pass `ScopeId` into
`insert_instance_inits` (#8001) (overlookmotel)
- 0a38eea transformer/class-properties: Use `temp_var_name_base` to
generate temp var names for `super` transform (#8004) (overlookmotel)
- d1b7181 transformer/class-properties: Rename var (#8006)
(overlookmotel)
- 5a23d72 transformer/class-properties: Remove outdated comment (#8000)
(overlookmotel)
- b3a5f3e transformer/class-properties: Mark
`transform_assignment_expression_if_super_member_assignment_target` as
inline (#7993) (Dunqing)

### Testing

- bcb33c0 semantic: Add a test for catch parameters reference (#7988)
(Dunqing)

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