mirror of https://github.com/jkjoy/sunpeiwen.git
66 lines
2.1 KiB
JavaScript
66 lines
2.1 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.buildScopeIIFE = buildScopeIIFE;
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exports.collectShadowedParamsNames = collectShadowedParamsNames;
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exports.iifeVisitor = void 0;
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var _core = require("@babel/core");
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const iifeVisitor = {
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"ReferencedIdentifier|BindingIdentifier"(path, state) {
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const {
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scope,
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node
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} = path;
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const {
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name
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} = node;
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if (name === "eval" || scope.getBinding(name) === state.scope.parent.getBinding(name) && state.scope.hasOwnBinding(name)) {
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state.needsOuterBinding = true;
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path.stop();
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}
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},
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"TypeAnnotation|TSTypeAnnotation|TypeParameterDeclaration|TSTypeParameterDeclaration": path => path.skip()
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};
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exports.iifeVisitor = iifeVisitor;
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function collectShadowedParamsNames(param, functionScope, shadowedParams) {
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for (const name of Object.keys(param.getBindingIdentifiers())) {
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var _functionScope$bindin;
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const constantViolations = (_functionScope$bindin = functionScope.bindings[name]) == null ? void 0 : _functionScope$bindin.constantViolations;
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if (constantViolations) {
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for (const redeclarator of constantViolations) {
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const node = redeclarator.node;
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switch (node.type) {
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case "VariableDeclarator":
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{
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if (node.init === null) {
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const declaration = redeclarator.parentPath;
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if (!declaration.parentPath.isFor() || declaration.parentPath.get("body") === declaration) {
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redeclarator.remove();
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break;
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}
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}
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shadowedParams.add(name);
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break;
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}
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case "FunctionDeclaration":
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shadowedParams.add(name);
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break;
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}
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}
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}
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}
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}
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function buildScopeIIFE(shadowedParams, body) {
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const args = [];
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const params = [];
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for (const name of shadowedParams) {
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args.push(_core.types.identifier(name));
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params.push(_core.types.identifier(name));
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}
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return _core.types.returnStatement(_core.types.callExpression(_core.types.arrowFunctionExpression(params, body), args));
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}
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//# sourceMappingURL=shadow-utils.js.map
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