@swc/wasm

Bug Fixes

• (binding/node) Return an error when a file cannot be read instead of panicking

• (bindings) Detect macOS ACLs with supported APIs

• (es) Decode template raw values when cooked is missing

• (es/codegen) Minify unicode escapes in template literals

• (es/codegen) Separate generic type assertion openers

• (es/compat) Preserve array rest when lowering nested object rest

• (es/lexer) Stop iteration when input is exhausted

• (es/minifier) Check eval and arguments usage in var define scope

• (es/minifier) Drop unused object pattern defaults

• (es/minifier) Preserve Array spread arity

• (es/minifier) Preserve holes in array joins

• (es/minifier) Preserve catch return before finally

• (es/minifier) Skip prototype setters in Object.keys

• (es/minifier) Guard static helper evaluation

• (es/minifier) Preserve string import names

• (es/minifier) Preserve unsigned shift coercion

• (es/minifier) Fold missing codePointAt to undefined

• (es/minifier) Fold local deletes to false

• (es/minifier) Preserve Function.length arity

• (es/minifier) Preserve rest RegExp identity

• (es/minifier) Preserve lexical method defaults

• (es/minifier) Preserve arguments after IIFE spreads

• (es/minifier) Preserve string method arguments

• (es/minifier) Preserve optional-chain continuation throws

• (es/minifier) Preserve constant switch test effects

• (es/minifier) Preserve shadowed undefined yield values

• (es/minifier) Retain unsafe Symbol call arguments

• (es/minifier) Guard similar if merges

• (es/minifier) Preserve conditional assignment target order

• (es/minifier) Preserve Set and Map iteration

• (es/minifier) Preserve sequence IIFE argument evaluation

• (es/minifier) Respect global defs root bindings

• (es/minifier) Format toExponential compatibly

• (es/minifier) Preserve tiny toPrecision calls

• (es/minifier) Preserve async IIFE return values

• (es/minifier) Retain rest params in dynamic scopes

• (es/minifier) Safely hoist property callees

• (es/minifier) Preserve catch assignments before finally

• (es/minifier) Preserve delete operand effects

• (es/minifier) Preserve unary comparison evaluation order

• (es/minifier) Preserve branches when collapsing assignments

• (es/minifier) Preserve empty array assignments

• (es/minifier) Preserve empty IIFE parameter effects

• (es/minifier) Preserve empty join coercion

• (es/minifier) Preserve empty object destructuring errors

• (es/minifier) Deduplicate folded Object.keys

• (es/minifier) Preserve finalizer breaks in switches

• (es/minifier) Preserve strict equality for repeated calls

• (es/minifier) Preserve class scope in if-return negation

• (es/minifier) Preserve function expression names

• (es/minifier) Preserve finalizer completions

• (es/minifier) Evaluate String.raw templates with raw quasis

• (es/minifier) Preserve returns in finalizers

• (es/minifier) Scan all adjacent hoist declaration pairs

• (es/minifier) Preserve reassigned arguments access

• (es/minifier) Preserve switch fallthrough cases

• (es/minifier) Preserve lone surrogate template values

• (es/minifier) Preserve spread iteration in unused builtins

• (es/minifier) Preserve computed update targets

• (es/minifier) Check class side effect

• (es/minifier) Preserve let initialization when dropping unused variables

• (es/minifier) Do not merge sequences across array spreads

• (es/minifier) Preserve destructuring patterns with PURE-annotated initializers

• (es/minifier) Mark properties assigned through destructuring targets as mutated

• (es/minifier) Keep function and class declarations whose self-reference is dropped

• (es/minifier) Avoid inline arrow with this when used as arg

• (es/parser) Reject unicode escapes in RegExp flags

• (es/parser) Allow line breaks before enum names

• (es/parser) Allow ambient rest trailing commas

• (es/parser) Respect line breaks after declare

• (es/parser) Parse optional generator methods

• (es/parser) Allow line breaks before import attributes

• (es/parser) Allow await identifiers in explicit Script parsing

• (es/parser) Respect line breaks before definite assignment assertions

• (es/parser) Restore strict context after classes

• (es/parser) Reset static block context for nested declarations

• (es/parser) Allow eval and arguments in ambient function declarations

• (es/parser) Parse static constructor methods in JavaScript

• (es/parser) Allow of bindings in await using loops

• (es/parser) Accept valid declare readonly field initializers

• (es/parser) Preserve elisions in arrow binding patterns

• (es/parser) Isolate constructor function contexts

• (es/parser) Correctly round non-decimal numeric literals

• (es/parser) Allow string import and export names after type

• (es/parser) Preserve type references named asserts before line breaks

• (es/parser) Recognize named optional and rest tuple elements

• (es/parser) Support leading pipes in Flow match patterns

• (es/parser) Allow escaped keywords as property names

• (es/parser) Parse optional renamed Flow component parameters

• (es/typescript) Fold optional-chained enum member reads

• (hstr) Avoid panic in Wtf8::starts_with

• (html/minifier) Preserve adjacent script elements

• (html/parser) Preserve customizable select markup

• (node) Repair native release verification and cache handling

• (nodejs) Complete Amaro REPL support APIs

• Use Rust changeset package names

• Correct quoted package name in changeset

Features

• (bindings) Add private compressed native addon foundation

• (bindings) Gate native npm releases on verified carriers

• (es/minifier) Honor /*#__PURE__*/ on property reads and destructuring patterns

• (es/minifier) Account for shorthand expansion when inlining

• (es/module) Support moduleRoot for AMD module IDs

Performance

• (es/preset-env) Reduce binary size with browserslist deflate

• (es/transforms) Skip script traversal in export-default-from

• (swc_core) Deduplicate ICU dependencies

Mod

• (es/minifier) Check Map/Set param is array

Revert

• (es/minifier) Revert #12384