feat: import grouping (#493)#784

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todor-a:feat-import-groups

Commits on May 21, 2026

docs: add import grouping design (#493)
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docs: cross-reference Biome organizeImports cases in import grouping design
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docs: add opt-in mergeImports option to import grouping design
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docs: add module.builtinsRuntime (node/deno/bun/none) to import grouping design
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docs: import groups implementation plan
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feat(config): add TypeImportsMode and BuiltinsRuntime enums
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feat(config): add ImportGroup, ImportMatcher, BuiltinCategory
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feat(config): add module.importGroups/typeImports/mergeImports/builtinsRuntime fields
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feat(config): add builder methods for import grouping config
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feat(config): resolve module.importGroups and related keys
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build: add globset and phf dependencies
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feat: add is_builtin classifier with Node/Deno/Bun runtimes
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chore(imports): scaffold imports submodule tree
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feat(imports): compile import groups into resolved form
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feat(imports): pure classifier of import sources into resolved groups
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feat(imports): stable partition of classified imports
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refactor(generate): add subgroup_boundaries to StmtGroup
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feat(imports): partition imports during get_stmt_groups when enabled
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feat(imports): force blank line at subgroup boundary (#493)
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feat(imports): within-subgroup sort honors module.sortImportDeclarations
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test(imports): coverage for typeImports, builtinsRuntime, patterns, barriers
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feat(imports): comments travel with imports on reorder; pin detached headers to file start
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feat(imports): merge eligibility predicate
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feat(imports): merge bucket detection (full merge emission TBD)
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feat(config): surface module.importGroups compile diagnostics via resolve_config
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test(imports): coverage for unknown/multi-chunk/attributes/.d.ts/knob interactions
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docs(imports): README and JSON schema for module.importGroups (#493)
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chore(imports): silence clippy dead_code warnings, use to_vec
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perf(imports): cleanup after code review (precompute, FxHashSet, drop redundant state)
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revert(imports): drop module.mergeImports (was never wired, will revisit when actually implemented)
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chore: drop internal planning docs from PR
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fix(imports): bypass node-order debug assertion during reordered import emission
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chore(imports): remove non-essential comments
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