shift73k/assets_old/node_modules/@babel/plugin-transform-modules-commonjs/lib/index.js

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6.8 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _helperPluginUtils = require("@babel/helper-plugin-utils");
var _helperModuleTransforms = require("@babel/helper-module-transforms");
var _helperSimpleAccess = _interopRequireDefault(require("@babel/helper-simple-access"));
var _core = require("@babel/core");
var _utils = require("babel-plugin-dynamic-import-node/utils");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var _default = (0, _helperPluginUtils.declare)((api, options) => {
var _api$assumption, _api$assumption2;
api.assertVersion(7);
const transformImportCall = (0, _utils.createDynamicImportTransform)(api);
const {
strictNamespace = false,
mjsStrictNamespace = true,
allowTopLevelThis,
strict,
strictMode,
noInterop,
lazy = false,
allowCommonJSExports = true
} = options;
const constantReexports = (_api$assumption = api.assumption("constantReexports")) != null ? _api$assumption : options.loose;
const enumerableModuleMeta = (_api$assumption2 = api.assumption("enumerableModuleMeta")) != null ? _api$assumption2 : options.loose;
if (typeof lazy !== "boolean" && typeof lazy !== "function" && (!Array.isArray(lazy) || !lazy.every(item => typeof item === "string"))) {
throw new Error(`.lazy must be a boolean, array of strings, or a function`);
}
if (typeof strictNamespace !== "boolean") {
throw new Error(`.strictNamespace must be a boolean, or undefined`);
}
if (typeof mjsStrictNamespace !== "boolean") {
throw new Error(`.mjsStrictNamespace must be a boolean, or undefined`);
}
const getAssertion = localName => _core.template.expression.ast`
(function(){
throw new Error(
"The CommonJS '" + "${localName}" + "' variable is not available in ES6 modules." +
"Consider setting setting sourceType:script or sourceType:unambiguous in your " +
"Babel config for this file.");
})()
`;
const moduleExportsVisitor = {
ReferencedIdentifier(path) {
const localName = path.node.name;
if (localName !== "module" && localName !== "exports") return;
const localBinding = path.scope.getBinding(localName);
const rootBinding = this.scope.getBinding(localName);
if (rootBinding !== localBinding || path.parentPath.isObjectProperty({
value: path.node
}) && path.parentPath.parentPath.isObjectPattern() || path.parentPath.isAssignmentExpression({
left: path.node
}) || path.isAssignmentExpression({
left: path.node
})) {
return;
}
path.replaceWith(getAssertion(localName));
},
AssignmentExpression(path) {
const left = path.get("left");
if (left.isIdentifier()) {
const localName = path.node.name;
if (localName !== "module" && localName !== "exports") return;
const localBinding = path.scope.getBinding(localName);
const rootBinding = this.scope.getBinding(localName);
if (rootBinding !== localBinding) return;
const right = path.get("right");
right.replaceWith(_core.types.sequenceExpression([right.node, getAssertion(localName)]));
} else if (left.isPattern()) {
const ids = left.getOuterBindingIdentifiers();
const localName = Object.keys(ids).filter(localName => {
if (localName !== "module" && localName !== "exports") return false;
return this.scope.getBinding(localName) === path.scope.getBinding(localName);
})[0];
if (localName) {
const right = path.get("right");
right.replaceWith(_core.types.sequenceExpression([right.node, getAssertion(localName)]));
}
}
}
};
return {
name: "transform-modules-commonjs",
pre() {
this.file.set("@babel/plugin-transform-modules-*", "commonjs");
},
visitor: {
CallExpression(path) {
if (!this.file.has("@babel/plugin-proposal-dynamic-import")) return;
if (!path.get("callee").isImport()) return;
let {
scope
} = path;
do {
scope.rename("require");
} while (scope = scope.parent);
transformImportCall(this, path.get("callee"));
},
Program: {
exit(path, state) {
if (!(0, _helperModuleTransforms.isModule)(path)) return;
path.scope.rename("exports");
path.scope.rename("module");
path.scope.rename("require");
path.scope.rename("__filename");
path.scope.rename("__dirname");
if (!allowCommonJSExports) {
(0, _helperSimpleAccess.default)(path, new Set(["module", "exports"]));
path.traverse(moduleExportsVisitor, {
scope: path.scope
});
}
let moduleName = (0, _helperModuleTransforms.getModuleName)(this.file.opts, options);
if (moduleName) moduleName = _core.types.stringLiteral(moduleName);
const {
meta,
headers
} = (0, _helperModuleTransforms.rewriteModuleStatementsAndPrepareHeader)(path, {
exportName: "exports",
constantReexports,
enumerableModuleMeta,
strict,
strictMode,
allowTopLevelThis,
noInterop,
lazy,
esNamespaceOnly: typeof state.filename === "string" && /\.mjs$/.test(state.filename) ? mjsStrictNamespace : strictNamespace
});
for (const [source, metadata] of meta.source) {
const loadExpr = _core.types.callExpression(_core.types.identifier("require"), [_core.types.stringLiteral(source)]);
let header;
if ((0, _helperModuleTransforms.isSideEffectImport)(metadata)) {
if (metadata.lazy) throw new Error("Assertion failure");
header = _core.types.expressionStatement(loadExpr);
} else {
const init = (0, _helperModuleTransforms.wrapInterop)(path, loadExpr, metadata.interop) || loadExpr;
if (metadata.lazy) {
header = _core.template.ast`
function ${metadata.name}() {
const data = ${init};
${metadata.name} = function(){ return data; };
return data;
}
`;
} else {
header = _core.template.ast`
var ${metadata.name} = ${init};
`;
}
}
header.loc = metadata.loc;
headers.push(header);
headers.push(...(0, _helperModuleTransforms.buildNamespaceInitStatements)(meta, metadata, constantReexports));
}
(0, _helperModuleTransforms.ensureStatementsHoisted)(headers);
path.unshiftContainer("body", headers);
}
}
}
};
});
exports.default = _default;