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211 lines
6.1 KiB
211 lines
6.1 KiB
"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.default = exports.environmentVisitor = void 0;
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var _traverse = _interopRequireDefault(require("@babel/traverse"));
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var _helperMemberExpressionToFunctions = _interopRequireDefault(require("@babel/helper-member-expression-to-functions"));
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var _helperOptimiseCallExpression = _interopRequireDefault(require("@babel/helper-optimise-call-expression"));
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var t = _interopRequireWildcard(require("@babel/types"));
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function getPrototypeOfExpression(objectRef, isStatic, file, isPrivateMethod) {
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objectRef = t.cloneNode(objectRef);
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const targetRef = isStatic || isPrivateMethod ? objectRef : t.memberExpression(objectRef, t.identifier("prototype"));
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return t.callExpression(file.addHelper("getPrototypeOf"), [targetRef]);
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}
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function skipAllButComputedKey(path) {
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if (!path.node.computed) {
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path.skip();
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return;
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}
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const keys = t.VISITOR_KEYS[path.type];
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for (const key of keys) {
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if (key !== "key") path.skipKey(key);
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}
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}
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const environmentVisitor = {
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TypeAnnotation(path) {
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path.skip();
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},
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Function(path) {
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if (path.isMethod()) return;
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if (path.isArrowFunctionExpression()) return;
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path.skip();
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},
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"Method|ClassProperty|ClassPrivateProperty"(path) {
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skipAllButComputedKey(path);
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}
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};
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exports.environmentVisitor = environmentVisitor;
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const visitor = _traverse.default.visitors.merge([environmentVisitor, {
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Super(path, state) {
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const {
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node,
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parentPath
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} = path;
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if (!parentPath.isMemberExpression({
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object: node
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})) return;
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state.handle(parentPath);
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}
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}]);
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const specHandlers = {
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memoise(superMember, count) {
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const {
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scope,
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node
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} = superMember;
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const {
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computed,
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property
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} = node;
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if (!computed) {
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return;
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}
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const memo = scope.maybeGenerateMemoised(property);
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if (!memo) {
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return;
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}
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this.memoiser.set(property, memo, count);
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},
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prop(superMember) {
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const {
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computed,
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property
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} = superMember.node;
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if (this.memoiser.has(property)) {
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return t.cloneNode(this.memoiser.get(property));
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}
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if (computed) {
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return t.cloneNode(property);
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}
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return t.stringLiteral(property.name);
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},
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get(superMember) {
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return t.callExpression(this.file.addHelper("get"), [getPrototypeOfExpression(this.getObjectRef(), this.isStatic, this.file, this.isPrivateMethod), this.prop(superMember), t.thisExpression()]);
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},
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set(superMember, value) {
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return t.callExpression(this.file.addHelper("set"), [getPrototypeOfExpression(this.getObjectRef(), this.isStatic, this.file, this.isPrivateMethod), this.prop(superMember), value, t.thisExpression(), t.booleanLiteral(superMember.isInStrictMode())]);
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},
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destructureSet(superMember) {
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throw superMember.buildCodeFrameError(`Destructuring to a super field is not supported yet.`);
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},
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call(superMember, args) {
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return (0, _helperOptimiseCallExpression.default)(this.get(superMember), t.thisExpression(), args);
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}
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};
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const looseHandlers = Object.assign({}, specHandlers, {
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prop(superMember) {
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const {
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property
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} = superMember.node;
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if (this.memoiser.has(property)) {
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return t.cloneNode(this.memoiser.get(property));
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}
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return t.cloneNode(property);
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},
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get(superMember) {
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const {
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isStatic,
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superRef
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} = this;
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const {
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computed
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} = superMember.node;
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const prop = this.prop(superMember);
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let object;
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if (isStatic) {
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object = superRef ? t.cloneNode(superRef) : t.memberExpression(t.identifier("Function"), t.identifier("prototype"));
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} else {
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object = superRef ? t.memberExpression(t.cloneNode(superRef), t.identifier("prototype")) : t.memberExpression(t.identifier("Object"), t.identifier("prototype"));
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}
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return t.memberExpression(object, prop, computed);
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},
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set(superMember, value) {
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const {
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computed
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} = superMember.node;
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const prop = this.prop(superMember);
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return t.assignmentExpression("=", t.memberExpression(t.thisExpression(), prop, computed), value);
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},
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destructureSet(superMember) {
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const {
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computed
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} = superMember.node;
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const prop = this.prop(superMember);
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return t.memberExpression(t.thisExpression(), prop, computed);
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}
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});
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class ReplaceSupers {
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constructor(opts) {
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const path = opts.methodPath;
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this.methodPath = path;
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this.isStatic = path.isObjectMethod() || path.node.static;
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this.isPrivateMethod = path.isPrivate() && path.isMethod();
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this.file = opts.file;
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this.superRef = opts.superRef;
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this.isLoose = opts.isLoose;
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this.opts = opts;
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}
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getObjectRef() {
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return t.cloneNode(this.opts.objectRef || this.opts.getObjectRef());
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}
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replace() {
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const handler = this.isLoose ? looseHandlers : specHandlers;
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(0, _helperMemberExpressionToFunctions.default)(this.methodPath, visitor, Object.assign({
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file: this.file,
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isStatic: this.isStatic,
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isPrivateMethod: this.isPrivateMethod,
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getObjectRef: this.getObjectRef.bind(this),
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superRef: this.superRef
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}, handler));
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}
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}
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exports.default = ReplaceSupers;
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