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306 lines
10 KiB
306 lines
10 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 = void 0;
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var _helperMemberExpressionToFunctions = require("@babel/helper-member-expression-to-functions");
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var _helperOptimiseCallExpression = require("@babel/helper-optimise-call-expression");
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var _core = require("@babel/core");
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var _traverse = require("@babel/traverse");
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const {
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assignmentExpression,
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callExpression,
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cloneNode,
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identifier,
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memberExpression,
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sequenceExpression,
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stringLiteral,
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thisExpression
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} = _core.types;
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{
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exports.environmentVisitor = _traverse.visitors.environmentVisitor({});
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exports.skipAllButComputedKey = function skipAllButComputedKey(path) {
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path.skip();
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if (path.node.computed) {
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path.context.maybeQueue(path.get("key"));
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}
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};
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}
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const visitor = _traverse.visitors.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 unshadowSuperBindingVisitor = _traverse.visitors.environmentVisitor({
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Scopable(path, {
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refName
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}) {
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const binding = path.scope.getOwnBinding(refName);
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if (binding && binding.identifier.name === refName) {
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path.scope.rename(refName);
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}
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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 cloneNode(this.memoiser.get(property));
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}
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if (computed) {
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return cloneNode(property);
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}
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return stringLiteral(property.name);
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},
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_getPrototypeOfExpression() {
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const objectRef = cloneNode(this.getObjectRef());
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const targetRef = this.isStatic || this.isPrivateMethod ? objectRef : memberExpression(objectRef, identifier("prototype"));
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return callExpression(this.file.addHelper("getPrototypeOf"), [targetRef]);
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},
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get(superMember) {
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const objectRef = cloneNode(this.getObjectRef());
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return callExpression(this.file.addHelper("superPropGet"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), objectRef]) : objectRef, this.prop(superMember), thisExpression(), ...(this.isStatic || this.isPrivateMethod ? [] : [_core.types.numericLiteral(1)])]);
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},
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_call(superMember, args, optional) {
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const objectRef = cloneNode(this.getObjectRef());
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let argsNode;
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if (args.length === 1 && _core.types.isSpreadElement(args[0]) && (_core.types.isIdentifier(args[0].argument) || _core.types.isArrayExpression(args[0].argument))) {
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argsNode = args[0].argument;
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} else {
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argsNode = _core.types.arrayExpression(args);
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}
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const call = _core.types.callExpression(this.file.addHelper("superPropGet"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), objectRef]) : objectRef, this.prop(superMember), thisExpression(), _core.types.numericLiteral(2 | (this.isStatic || this.isPrivateMethod ? 0 : 1))]);
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if (optional) {
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return _core.types.optionalCallExpression(call, [argsNode], true);
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}
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return callExpression(call, [argsNode]);
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},
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set(superMember, value) {
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const objectRef = cloneNode(this.getObjectRef());
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return callExpression(this.file.addHelper("superPropSet"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), objectRef]) : objectRef, this.prop(superMember), value, thisExpression(), _core.types.numericLiteral(superMember.isInStrictMode() ? 1 : 0), ...(this.isStatic || this.isPrivateMethod ? [] : [_core.types.numericLiteral(1)])]);
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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 this._call(superMember, args, false);
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},
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optionalCall(superMember, args) {
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return this._call(superMember, args, true);
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},
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delete(superMember) {
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if (superMember.node.computed) {
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return sequenceExpression([callExpression(this.file.addHelper("toPropertyKey"), [cloneNode(superMember.node.property)]), _core.template.expression.ast`
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function () { throw new ReferenceError("'delete super[expr]' is invalid"); }()
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`]);
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} else {
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return _core.template.expression.ast`
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function () { throw new ReferenceError("'delete super.prop' is invalid"); }()
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`;
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}
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}
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};
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const specHandlers_old = {
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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 cloneNode(this.memoiser.get(property));
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}
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if (computed) {
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return cloneNode(property);
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}
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return stringLiteral(property.name);
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},
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_getPrototypeOfExpression() {
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const objectRef = cloneNode(this.getObjectRef());
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const targetRef = this.isStatic || this.isPrivateMethod ? objectRef : memberExpression(objectRef, identifier("prototype"));
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return callExpression(this.file.addHelper("getPrototypeOf"), [targetRef]);
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},
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get(superMember) {
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return this._get(superMember);
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},
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_get(superMember) {
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const proto = this._getPrototypeOfExpression();
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return callExpression(this.file.addHelper("get"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), proto]) : proto, this.prop(superMember), thisExpression()]);
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},
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set(superMember, value) {
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const proto = this._getPrototypeOfExpression();
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return callExpression(this.file.addHelper("set"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), proto]) : proto, this.prop(superMember), value, thisExpression(), _core.types.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), thisExpression(), args, false);
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},
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optionalCall(superMember, args) {
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return (0, _helperOptimiseCallExpression.default)(this._get(superMember), cloneNode(thisExpression()), args, true);
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},
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delete(superMember) {
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if (superMember.node.computed) {
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return sequenceExpression([callExpression(this.file.addHelper("toPropertyKey"), [cloneNode(superMember.node.property)]), _core.template.expression.ast`
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function () { throw new ReferenceError("'delete super[expr]' is invalid"); }()
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`]);
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} else {
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return _core.template.expression.ast`
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function () { throw new ReferenceError("'delete super.prop' is invalid"); }()
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`;
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}
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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 cloneNode(this.memoiser.get(property));
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}
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return 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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getSuperRef
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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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var _getSuperRef;
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object = (_getSuperRef = getSuperRef()) != null ? _getSuperRef : memberExpression(identifier("Function"), identifier("prototype"));
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} else {
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var _getSuperRef2;
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object = memberExpression((_getSuperRef2 = getSuperRef()) != null ? _getSuperRef2 : identifier("Object"), identifier("prototype"));
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}
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return 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 assignmentExpression("=", memberExpression(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 memberExpression(thisExpression(), prop, computed);
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},
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call(superMember, args) {
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return (0, _helperOptimiseCallExpression.default)(this.get(superMember), thisExpression(), args, false);
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},
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optionalCall(superMember, args) {
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return (0, _helperOptimiseCallExpression.default)(this.get(superMember), thisExpression(), args, true);
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}
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});
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class ReplaceSupers {
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constructor(opts) {
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var _opts$constantSuper;
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const path = opts.methodPath;
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this.methodPath = path;
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this.isDerivedConstructor = path.isClassMethod({
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kind: "constructor"
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}) && !!opts.superRef;
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this.isStatic = path.isObjectMethod() || path.node.static || (path.isStaticBlock == null ? void 0 : path.isStaticBlock());
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this.isPrivateMethod = path.isPrivate() && path.isMethod();
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this.file = opts.file;
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this.constantSuper = (_opts$constantSuper = opts.constantSuper) != null ? _opts$constantSuper : opts.isLoose;
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this.opts = opts;
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}
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getObjectRef() {
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return cloneNode(this.opts.objectRef || this.opts.getObjectRef());
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}
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getSuperRef() {
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if (this.opts.superRef) return cloneNode(this.opts.superRef);
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if (this.opts.getSuperRef) {
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return cloneNode(this.opts.getSuperRef());
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}
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}
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replace() {
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const {
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methodPath
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} = this;
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if (this.opts.refToPreserve) {
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methodPath.traverse(unshadowSuperBindingVisitor, {
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refName: this.opts.refToPreserve.name
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});
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}
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const handler = this.constantSuper ? looseHandlers : this.file.availableHelper("superPropSet") ? specHandlers : specHandlers_old;
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visitor.shouldSkip = path => {
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if (path.parentPath === methodPath) {
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if (path.parentKey === "decorators" || path.parentKey === "key") {
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return true;
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}
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}
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};
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(0, _helperMemberExpressionToFunctions.default)(methodPath, visitor, Object.assign({
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file: this.file,
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scope: this.methodPath.scope,
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isDerivedConstructor: this.isDerivedConstructor,
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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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getSuperRef: this.getSuperRef.bind(this),
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boundGet: handler.get
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}, handler));
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}
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}
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exports.default = ReplaceSupers;
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//# sourceMappingURL=index.js.map
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