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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _helperMemberExpressionToFunctions = require("@babel/helper-member-expression-to-functions");
var _helperOptimiseCallExpression = require("@babel/helper-optimise-call-expression");
var _core = require("@babel/core");
var _traverse = require("@babel/traverse");
const {
assignmentExpression,
callExpression,
cloneNode,
identifier,
memberExpression,
sequenceExpression,
stringLiteral,
thisExpression
} = _core.types;
{
exports.environmentVisitor = _traverse.visitors.environmentVisitor({});
exports.skipAllButComputedKey = function skipAllButComputedKey(path) {
path.skip();
if (path.node.computed) {
path.context.maybeQueue(path.get("key"));
}
};
}
const visitor = _traverse.visitors.environmentVisitor({
Super(path, state) {
const {
node,
parentPath
} = path;
if (!parentPath.isMemberExpression({
object: node
})) return;
state.handle(parentPath);
}
});
const unshadowSuperBindingVisitor = _traverse.visitors.environmentVisitor({
Scopable(path, {
refName
}) {
const binding = path.scope.getOwnBinding(refName);
if (binding && binding.identifier.name === refName) {
path.scope.rename(refName);
}
}
});
const specHandlers = {
memoise(superMember, count) {
const {
scope,
node
} = superMember;
const {
computed,
property
} = node;
if (!computed) {
return;
}
const memo = scope.maybeGenerateMemoised(property);
if (!memo) {
return;
}
this.memoiser.set(property, memo, count);
},
prop(superMember) {
const {
computed,
property
} = superMember.node;
if (this.memoiser.has(property)) {
return cloneNode(this.memoiser.get(property));
}
if (computed) {
return cloneNode(property);
}
return stringLiteral(property.name);
},
_getPrototypeOfExpression() {
const objectRef = cloneNode(this.getObjectRef());
const targetRef = this.isStatic || this.isPrivateMethod ? objectRef : memberExpression(objectRef, identifier("prototype"));
return callExpression(this.file.addHelper("getPrototypeOf"), [targetRef]);
},
get(superMember) {
const objectRef = cloneNode(this.getObjectRef());
return callExpression(this.file.addHelper("superPropGet"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), objectRef]) : objectRef, this.prop(superMember), thisExpression(), ...(this.isStatic || this.isPrivateMethod ? [] : [_core.types.numericLiteral(1)])]);
},
_call(superMember, args, optional) {
const objectRef = cloneNode(this.getObjectRef());
let argsNode;
if (args.length === 1 && _core.types.isSpreadElement(args[0]) && (_core.types.isIdentifier(args[0].argument) || _core.types.isArrayExpression(args[0].argument))) {
argsNode = args[0].argument;
} else {
argsNode = _core.types.arrayExpression(args);
}
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))]);
if (optional) {
return _core.types.optionalCallExpression(call, [argsNode], true);
}
return callExpression(call, [argsNode]);
},
set(superMember, value) {
const objectRef = cloneNode(this.getObjectRef());
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)])]);
},
destructureSet(superMember) {
throw superMember.buildCodeFrameError(`Destructuring to a super field is not supported yet.`);
},
call(superMember, args) {
return this._call(superMember, args, false);
},
optionalCall(superMember, args) {
return this._call(superMember, args, true);
},
delete(superMember) {
if (superMember.node.computed) {
return sequenceExpression([callExpression(this.file.addHelper("toPropertyKey"), [cloneNode(superMember.node.property)]), _core.template.expression.ast`
function () { throw new ReferenceError("'delete super[expr]' is invalid"); }()
`]);
} else {
return _core.template.expression.ast`
function () { throw new ReferenceError("'delete super.prop' is invalid"); }()
`;
}
}
};
const specHandlers_old = {
memoise(superMember, count) {
const {
scope,
node
} = superMember;
const {
computed,
property
} = node;
if (!computed) {
return;
}
const memo = scope.maybeGenerateMemoised(property);
if (!memo) {
return;
}
this.memoiser.set(property, memo, count);
},
prop(superMember) {
const {
computed,
property
} = superMember.node;
if (this.memoiser.has(property)) {
return cloneNode(this.memoiser.get(property));
}
if (computed) {
return cloneNode(property);
}
return stringLiteral(property.name);
},
_getPrototypeOfExpression() {
const objectRef = cloneNode(this.getObjectRef());
const targetRef = this.isStatic || this.isPrivateMethod ? objectRef : memberExpression(objectRef, identifier("prototype"));
return callExpression(this.file.addHelper("getPrototypeOf"), [targetRef]);
},
get(superMember) {
return this._get(superMember);
},
_get(superMember) {
const proto = this._getPrototypeOfExpression();
return callExpression(this.file.addHelper("get"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), proto]) : proto, this.prop(superMember), thisExpression()]);
},
set(superMember, value) {
const proto = this._getPrototypeOfExpression();
return callExpression(this.file.addHelper("set"), [this.isDerivedConstructor ? sequenceExpression([thisExpression(), proto]) : proto, this.prop(superMember), value, thisExpression(), _core.types.booleanLiteral(superMember.isInStrictMode())]);
},
destructureSet(superMember) {
throw superMember.buildCodeFrameError(`Destructuring to a super field is not supported yet.`);
},
call(superMember, args) {
return (0, _helperOptimiseCallExpression.default)(this._get(superMember), thisExpression(), args, false);
},
optionalCall(superMember, args) {
return (0, _helperOptimiseCallExpression.default)(this._get(superMember), cloneNode(thisExpression()), args, true);
},
delete(superMember) {
if (superMember.node.computed) {
return sequenceExpression([callExpression(this.file.addHelper("toPropertyKey"), [cloneNode(superMember.node.property)]), _core.template.expression.ast`
function () { throw new ReferenceError("'delete super[expr]' is invalid"); }()
`]);
} else {
return _core.template.expression.ast`
function () { throw new ReferenceError("'delete super.prop' is invalid"); }()
`;
}
}
};
const looseHandlers = Object.assign({}, specHandlers, {
prop(superMember) {
const {
property
} = superMember.node;
if (this.memoiser.has(property)) {
return cloneNode(this.memoiser.get(property));
}
return cloneNode(property);
},
get(superMember) {
const {
isStatic,
getSuperRef
} = this;
const {
computed
} = superMember.node;
const prop = this.prop(superMember);
let object;
if (isStatic) {
var _getSuperRef;
object = (_getSuperRef = getSuperRef()) != null ? _getSuperRef : memberExpression(identifier("Function"), identifier("prototype"));
} else {
var _getSuperRef2;
object = memberExpression((_getSuperRef2 = getSuperRef()) != null ? _getSuperRef2 : identifier("Object"), identifier("prototype"));
}
return memberExpression(object, prop, computed);
},
set(superMember, value) {
const {
computed
} = superMember.node;
const prop = this.prop(superMember);
return assignmentExpression("=", memberExpression(thisExpression(), prop, computed), value);
},
destructureSet(superMember) {
const {
computed
} = superMember.node;
const prop = this.prop(superMember);
return memberExpression(thisExpression(), prop, computed);
},
call(superMember, args) {
return (0, _helperOptimiseCallExpression.default)(this.get(superMember), thisExpression(), args, false);
},
optionalCall(superMember, args) {
return (0, _helperOptimiseCallExpression.default)(this.get(superMember), thisExpression(), args, true);
}
});
class ReplaceSupers {
constructor(opts) {
var _opts$constantSuper;
const path = opts.methodPath;
this.methodPath = path;
this.isDerivedConstructor = path.isClassMethod({
kind: "constructor"
}) && !!opts.superRef;
this.isStatic = path.isObjectMethod() || path.node.static || (path.isStaticBlock == null ? void 0 : path.isStaticBlock());
this.isPrivateMethod = path.isPrivate() && path.isMethod();
this.file = opts.file;
this.constantSuper = (_opts$constantSuper = opts.constantSuper) != null ? _opts$constantSuper : opts.isLoose;
this.opts = opts;
}
getObjectRef() {
return cloneNode(this.opts.objectRef || this.opts.getObjectRef());
}
getSuperRef() {
if (this.opts.superRef) return cloneNode(this.opts.superRef);
if (this.opts.getSuperRef) {
return cloneNode(this.opts.getSuperRef());
}
}
replace() {
const {
methodPath
} = this;
if (this.opts.refToPreserve) {
methodPath.traverse(unshadowSuperBindingVisitor, {
refName: this.opts.refToPreserve.name
});
}
const handler = this.constantSuper ? looseHandlers : this.file.availableHelper("superPropSet") ? specHandlers : specHandlers_old;
visitor.shouldSkip = path => {
if (path.parentPath === methodPath) {
if (path.parentKey === "decorators" || path.parentKey === "key") {
return true;
}
}
};
(0, _helperMemberExpressionToFunctions.default)(methodPath, visitor, Object.assign({
file: this.file,
scope: this.methodPath.scope,
isDerivedConstructor: this.isDerivedConstructor,
isStatic: this.isStatic,
isPrivateMethod: this.isPrivateMethod,
getObjectRef: this.getObjectRef.bind(this),
getSuperRef: this.getSuperRef.bind(this),
boundGet: handler.get
}, handler));
}
}
exports.default = ReplaceSupers;
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