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							240 lines
						
					
					
						
							7.7 KiB
						
					
					
				| "use strict";
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| 
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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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| Object.defineProperty(exports, "environmentVisitor", {
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|   enumerable: true,
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|   get: function () {
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|     return _helperEnvironmentVisitor.default;
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|   }
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| });
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| Object.defineProperty(exports, "skipAllButComputedKey", {
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|   enumerable: true,
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|   get: function () {
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|     return _helperEnvironmentVisitor.skipAllButComputedKey;
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|   }
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| });
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| var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
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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 _template = require("@babel/template");
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| var _traverse = require("@babel/traverse");
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| var _t = require("@babel/types");
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| const {
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|   assignmentExpression,
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|   booleanLiteral,
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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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| } = _t;
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| function getPrototypeOfExpression(objectRef, isStatic, file, isPrivateMethod) {
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|   objectRef = cloneNode(objectRef);
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|   const targetRef = isStatic || isPrivateMethod ? objectRef : memberExpression(objectRef, identifier("prototype"));
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|   return callExpression(file.addHelper("getPrototypeOf"), [targetRef]);
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| }
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| const visitor = _traverse.default.visitors.merge([_helperEnvironmentVisitor.default, {
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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.default.visitors.merge([_helperEnvironmentVisitor.default, {
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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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|   get(superMember) {
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|     return this._get(superMember, this._getThisRefs());
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|   },
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|   _get(superMember, thisRefs) {
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|     const proto = getPrototypeOfExpression(this.getObjectRef(), this.isStatic, this.file, this.isPrivateMethod);
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|     return callExpression(this.file.addHelper("get"), [
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|     thisRefs.memo ? sequenceExpression([thisRefs.memo, proto]) : proto, this.prop(superMember), thisRefs.this]);
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|   },
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|   _getThisRefs() {
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|     if (!this.isDerivedConstructor) {
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|       return {
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|         this: thisExpression()
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|       };
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|     }
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|     const thisRef = this.scope.generateDeclaredUidIdentifier("thisSuper");
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|     return {
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|       memo: assignmentExpression("=", thisRef, thisExpression()),
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|       this: cloneNode(thisRef)
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|     };
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|   },
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|   set(superMember, value) {
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|     const thisRefs = this._getThisRefs();
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|     const proto = getPrototypeOfExpression(this.getObjectRef(), this.isStatic, this.file, this.isPrivateMethod);
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|     return callExpression(this.file.addHelper("set"), [
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|     thisRefs.memo ? sequenceExpression([thisRefs.memo, proto]) : proto, this.prop(superMember), value, thisRefs.this, 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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|     const thisRefs = this._getThisRefs();
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|     return (0, _helperOptimiseCallExpression.default)(this._get(superMember, thisRefs), cloneNode(thisRefs.this), args, false);
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|   },
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|   optionalCall(superMember, args) {
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|     const thisRefs = this._getThisRefs();
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|     return (0, _helperOptimiseCallExpression.default)(this._get(superMember, thisRefs), cloneNode(thisRefs.this), 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)]), _template.default.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 _template.default.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$constantSuper;
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|     const path = opts.methodPath;
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|     this.methodPath = path;
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|     this.isDerivedConstructor = path.isClassMethod({
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|       kind: "constructor"
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|     }) && !!opts.superRef;
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|     this.isStatic = path.isObjectMethod() ||
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|     path.node.static || (path.isStaticBlock == null ? void 0 : path.isStaticBlock());
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|     this.isPrivateMethod = path.isPrivate() && path.isMethod();
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|     this.file = opts.file;
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|     this.constantSuper = (_opts$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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|     if (this.opts.refToPreserve) {
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|       this.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 : specHandlers;
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|     (0, _helperMemberExpressionToFunctions.default)(this.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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| 
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| //# sourceMappingURL=index.js.map
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