[0.66.0] - 2025-04-23

Features

• 7d5ad7d parser: Report error when import type { type } is used (feat(parser): report error when import type { type } is used #10528) (camc314)
• 6e40fac parser: Report error when export type { type } is used (feat(parser): report error when export type { type } is used #10524) (camc314)

Bug Fixes

• 43ad4e9 ast: Box this_param in TSCallSignatureDeclaration (fix(ast): Box this_param in TSCallSignatureDeclaration #10558) (Yuji Sugiura)
• 8eb3c0a ast/estree: Fix raw deser for FormalParameter (fix(ast/estree): fix raw deser for FormalParameter #10548) (overlookmotel)
• 3ebf220 codegen: Generate missing type in export type {} from 'mod' (fix(codegen): generate missing type in export type {} from 'mod' #10539) (Boshen)
• f19b287 estree: Add TSParameterProperty (fix(estree): Add TSParameterProperty #10534) (Yuji Sugiura)
• 7284f16 isolated-declarations: Leading comments of ExportDefaultDeclaration and TSExportAssignment appear in incorrect places (fix(isolated-declarations): leading comments of ExportDefaultDeclaration and TSExportAssignment appear in incorrect places #10559) (Dunqing)
• 4c316a5 isolated_declarations: Fix broken snapshot files (fix(isolated_declarations): fix broken snapshot files #10561) (Boshen)
• 84742d8 transformer/module_runner: Fix export default live binding (fix(transformer/module_runner): fix export default live binding #10560) (hi-ogawa)
• 6c115c7 transformer/module_runner: Fix execution order of re-export (fix(transformer/module_runner): fix execution order of re-export #10362) (hi-ogawa)
• b9d84b0 transformer/typescript: Remove StringLiteral::raw when rewriting extensions (fix(transformer/typescript): remove StringLiteral::raw when rewriting extensions #10554) (overlookmotel)

Performance

• 6a045c8 codegen: Speed up printing Directives (perf(codegen): speed up printing Directives #10551) (overlookmotel)
• 3418ae5 transformer/class-properties: Re-use InstanceInitializerVisitor (perf(transformer/class-properties): re-use InstanceInitializerVisitor #10543) (overlookmotel)
• 7fcf0ac transformer/typescript: Reduce allocations renaming extensions (perf(transformer/typescript): reduce allocations renaming extensions #10555) (overlookmotel)

Documentation

• 1a9530c transformer/class-properties: Fix typo (docs(transformer/class-properties): fix typo #10542) (overlookmotel)

Refactor

• 7e71282 transformer/class-properties: Correct outdated comment (refactor(transformer/class-properties): correct outdated comment #10546) (overlookmotel)
• 596978b transformer/class-properties: Simplify to get constructor method only once (refactor(transformer/class-properties): simplify to get constructor method only once #10493) (Dunqing)
• f13fe0a transformer/class-properties: Defer re-parenting initializers scopes until all instance properties are transformed (refactor(transformer/class-properties): defer re-parenting initializers scopes until all instance properties are transformed #10495) (Dunqing)
• c83dad6 transformer/class-properties: Streamline handling scope of instance property initializer (refactor(transformer/class-properties): streamline handling scope of instance property initializer #10492) (Dunqing)

Styling

• e10dfc8 traverse: Remove excess whitespace (style(traverse): remove excess whitespace #10544) (overlookmotel)

Testing

• 227febf allocator: Ignore a slow doc test (test(allocator): ignore a slow doc test #10521) (Dunqing)
• 14bb2be codegen: Add more tests for strings (test(codegen): add more tests for strings #10552) (overlookmotel)