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https://github.com/swc-project/swc.git
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98cc79a2be
swc_ecma_codegen: - Fix sourcemap of `export` tokens. - Fix codegen of numeric operands in left of a binary expression. - Fix codegen of unary operations. swc_ecma_minifier: - Visit `AssignPatProp.valie`. - Move `inline_prevented` to analyzer. - Add `Ctx.dont_invoke_iife`. - `iife`: Check for `arugments` swc: - `inline_sources_content`: true by default for `minify()`. |
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| examples | ||
| scripts | ||
| src | ||
| tests | ||
| .eslintrc | ||
| .gitignore | ||
| Cargo.toml | ||
| package.json | ||
| README.md | ||
| yarn.lock | ||
Minifier
EcmaScript minifier for the swc project. This is basically a port of terser.
Note
Currently name mangler is very simple. To focus on creating a MVP, I (kdy1) will use simple logic for name mangler and implement the content-aware name mangler after publishing first non-beta version.
Testing
Real-library tests
You can use vscode to see diffs. Select a file from tests/projects/output and select the corresponding file from tests/projects/refs. Then you can right click to see an option to open diff.
Splitting a library test
Extracting only subset from a library test makes development much easier.
Split status:
- angular-1.2.5
- backbone-1.1.0
- jquery-1.9.1
- jquery.mobile-1.4.2
- mootools-1.4.5
- underscore-1.5.2
- yui-3.12.0
Tests from terser
Tests ported from terser has
- input.js
- config.json
- mangle.json (if name mangling is enabled)
- output.js (if exists and can be modified if our one is better or due to lack of frequency-aware base54)
- output.terser.js (if exists)
Copying tests
Replace the content of terser/test/compress.js with it of scripts/compress.js and run npm run test:compress