SWC 配置 #

{
  "jsc": {
    "parser": { },
    "transform": { },
    "target": "es5",
    "loose": false,
    "externalHelpers": false,
    "keepClassNames": false
  },
  "module": { },
  "minify": false,
  "sourceMaps": false,
  "test": ".*\\.js$",
  "exclude": [],
  "env": { }
}

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": false,
      "dynamicImport": false,
      "privateMethod": false,
      "functionBind": false,
      "exportDefaultFrom": false,
      "exportNamespaceFrom": false,
      "decorators": false,
      "decoratorsBeforeExport": false,
      "topLevelAwait": false,
      "importMeta": false
    }
  }
}

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "tsx": false,
      "decorators": false,
      "dynamicImport": false,
      "dts": false,
      "noEarlyErrors": false
    }
  }
}

{
  "jsc": {
    "transform": {
      "react": {
        "runtime": "classic",
        "importSource": "react",
        "pragma": "React.createElement",
        "pragmaFrag": "React.Fragment",
        "throwIfNamespace": true,
        "development": false,
        "useBuiltins": false,
        "refresh": {
          "refreshReg": "$RefreshReg$",
          "refreshSig": "$RefreshSig$",
          "emitFullSignatures": false
        }
      }
    }
  }
}

// Classic 运行时
{
  "jsc": {
    "transform": {
      "react": {
        "runtime": "classic"
      }
    }
  }
}

// Automatic 运行时（推荐）
{
  "jsc": {
    "transform": {
      "react": {
        "runtime": "automatic"
      }
    }
  }
}

{
  "jsc": {
    "transform": {
      "decoratorVersion": "2022-03",
      "legacyDecorator": true
    }
  }
}

{
  "jsc": {
    "target": "es2015"
  }
}

{
  "jsc": {
    "loose": true
  }
}

{
  "jsc": {
    "externalHelpers": true
  }
}

npm install @swc/helpers

{
  "jsc": {
    "keepClassNames": true
  }
}

{
  "jsc": {
    "experimental": {
      "plugins": [
        ["@swc/plugin-my-plugin", { "option": "value" }]
      ],
      "cacheRoot": "/tmp/swc-cache"
    }
  }
}

{
  "module": {
    "type": "commonjs",
    "strict": false,
    "strictMode": true,
    "lazy": false,
    "noInterop": false,
    "ignoreDynamic": true,
    "allowTopLevelThis": false
  }
}

{
  "module": {
    "type": "es6",
    "strict": false,
    "noInterop": false
  }
}

{
  "module": {
    "type": "amd",
    "moduleId": "my-module",
    "strict": false
  }
}

{
  "module": {
    "type": "umd",
    "moduleId": "my-module",
    "globals": {
      "lodash": "_",
      "jquery": "$"
    }
  }
}

{
  "module": {
    "type": "systemjs"
  }
}

{
  "minify": true
}

{
  "jsc": {
    "minify": {
      "compress": {
        "defaults": true,
        "arrows": true,
        "arguments": false,
        "booleans": true,
        "collapse_vars": true,
        "comparisons": true,
        "computed_props": true,
        "conditionals": true,
        "dead_code": true,
        "drop_console": false,
        "drop_debugger": true,
        "evaluate": true,
        "hoist_funs": true,
        "hoist_props": true,
        "hoist_vars": false,
        "if_return": true,
        "join_vars": true,
        "keep_classnames": false,
        "keep_fnames": false,
        "loops": true,
        "negate_iife": true,
        "properties": true,
        "reduce_funcs": true,
        "reduce_vars": true,
        "sequences": true,
        "side_effects": true,
        "switches": true,
        "top_retain": [],
        "typeofs": true,
        "unused": true
      },
      "mangle": {
        "toplevel": false,
        "keep_classnames": false,
        "keep_fnames": false,
        "keep_private_props": false,
        "ie8": false,
        "safari10": false,
        "properties": {
          "regex": "^_",
          "reserved": []
        }
      },
      "format": {
        "comments": "some",
        "ecma": 5,
        "indent_level": 2,
        "preamble": "",
        "quote_style": 0
      }
    }
  },
  "minify": true
}

{
  "sourceMaps": true
}

{
  "sourceMaps": true,
  "sourceRoot": "/src",
  "sourceFileName": "index.js",
  "inlineSourcesContent": true
}

{
  "env": {
    "targets": {
      "chrome": "80",
      "firefox": "78",
      "safari": "14",
      "edge": "88",
      "node": "14"
    },
    "coreJs": 3,
    "mode": "usage",
    "debug": true
  }
}

{
  "env": {
    "targets": {
      "chrome": "80",
      "node": "14"
    }
  }
}

{
  "env": {
    "targets": {
      "browsers": ["> 1%", "last 2 versions", "not dead"]
    }
  }
}

{
  "env": {
    "coreJs": "3.29",
    "mode": "usage"
  }
}

{
  "test": ".*\\.js$",
  "exclude": []
}

{
  "test": ".*\\.js$",
  "exclude": [
    "node_modules",
    "**/*.test.js",
    "**/*.spec.js"
  ]
}

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": true,
      "dynamicImport": true
    },
    "target": "es2015",
    "loose": false,
    "externalHelpers": false
  },
  "module": {
    "type": "commonjs",
    "strictMode": true
  },
  "sourceMaps": true,
  "minify": false
}

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "tsx": true,
      "decorators": true,
      "dynamicImport": true
    },
    "transform": {
      "react": {
        "runtime": "automatic"
      }
    },
    "target": "es2015",
    "keepClassNames": true
  },
  "module": {
    "type": "es6"
  },
  "sourceMaps": true
}

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": true,
      "dynamicImport": true
    },
    "transform": {
      "react": {
        "runtime": "automatic",
        "importSource": "react",
        "development": false
      }
    },
    "target": "es2015"
  },
  "module": {
    "type": "es6"
  },
  "sourceMaps": "inline"
}

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "tsx": true
    },
    "target": "es2015",
    "minify": {
      "compress": {
        "defaults": true,
        "drop_console": true,
        "drop_debugger": true,
        "unused": true
      },
      "mangle": {
        "toplevel": true
      }
    }
  },
  "module": {
    "type": "commonjs"
  },
  "minify": true,
  "sourceMaps": true
}

{
  "jsc": {
    "parser": {
      "syntax": "typescript"
    },
    "target": "es2015",
    "externalHelpers": true,
    "keepClassNames": true
  },
  "module": {
    "type": "commonjs"
  },
  "sourceMaps": true
}

// .swcrc
{
  "jsc": {
    "parser": {
      "syntax": "typescript"
    },
    "target": "es2015"
  }
}

// src/.swcrc（覆盖父配置）
{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": true
    }
  }
}

{
  "extends": "./base.swcrc",
  "jsc": {
    "target": "es2020"
  }
}