swc_ecma_minifier:
- Introduce `bundle` mode, which can be used to parallelize processing of bundled files.
- Add a function analyzer that checks if the function references something from the outer scope.
- Split out parellsizable passes.
- Split `optimzer` into pure / non-pure.
- Run pure optimizations in parallel.
swc_common:
- Add `Span.has_mark`.
swc_ecma_codegen:
- Emit `1e3` for `1000`.
- Optimize output. (#1986)
swc_ecma_minifier:
- name mangler: Don't use keywords as an id.
- `properties`: Optimize member expression with string properties.
- `inline`: Inline some function expressions even if it's not fn-local.
- `analyzer`: Track reassignment correctly.
- `analyzer`: Track fn-local correctly.
- `sequences`: Inject `void` if required.
- `inline`: Inline function declarations correctly.
- `sequences`: Merge expressions into test of if statements.
- `sequences`: Reduce calls to an assigned variable.
- Use `Marks` instead of `&dyn Comments`.
swc_ecma_transforms_optimization:
- `expr_simplifier`: Fix infinite loops.
node/swc:
- Ensure that `.transform` performs minification. (#1989)
swc_ecma_minifier:
- Implement more rules.
swc_ecma_transforms_base:
- `resolver`: Fix syntax context of catch block.
swc_ecma_transforms_optimization:
- `expr_simplifier`: Fix a bug related to `this` of call expressions.
- `dead_branch_remover`: Don't reduce switch cases if test is now known.
- `dead_branch_remover`: Don't break `&&`.
swc_common:
- `SourceMap`: Don't panic for dummy spans.
swc_ecma_codegen:
- Use span for `throw`. (#1685)
- Use span for `var` / `let` / `const`.
- Use span for `new`.
- Use span for `if`.
- Add spans to braces of a block statement. (#1796)
swc_ecma_transforms_compat:
- `parameters`: Don't drop the span of block statements. (#1796)
swc:
- Allow specifying input source map in `.swcrc`.
- Ensure that the inline source map works properly. (#1713)
swc_ecma_transforms_base:
- `fixer`: Wrap operand of a unary expression if it's a binary expression. (#1781, #1789)
swc_ecma_transforms_module:
- Allow multiple `export *` even if it has the same item. (#1780)
swc_ecma_minifier:
- Implement `evaluate` partially.
- Store 'expected output' from terser along with our result.
swc_ecma_transforms_base:
- `fixer`: Don't wrap `+ (a % b)`.
swc_ecma_transforms_optimization:
- `expr_simplifier`: Preserve this in calls.
swc_ecma_codegen:
- Don't panic while checking if 2 dots are required.
swc_ecma_minifier:
- Implement some rules related to the option `evaluate`.
- Implement some rules related to strings.
- Implement some rules related to numbers.
swc_ecma_transforms_base:
- `fixer`: Handle `- (1 / 0)`.
- `fixer`: Handle `(void 0)(0)`.
swc_ecma_codegen:
- Fix codegen of `-0.0`.
swc_ecma_transforms_base:
- `fixer`: Handle tag of tagged template literals.
swc_ecma_minifier:
- Implement more rules for strings.
- Implement more rules for teplate literals.
- Implement more rules for comparisons.
- Implement more rules for destructuring bindings.
- Implement more rules for switch statements.
- Implement more rules for expressions.
