magicast
Version:
Modify a JS/TS file and write back magically just like JSON!
1,597 lines (1,592 loc) • 293 kB
JavaScript
import { promises } from 'node:fs';
import 'fs';
import sourceMap from 'source-map-js';
import * as babelParser from '@babel/parser';
function sharedPlugin(fork) {
var types = fork.use(typesPlugin);
var Type = types.Type;
var builtin = types.builtInTypes;
var isNumber = builtin.number;
function geq(than) {
return Type.from(
(value) => isNumber.check(value) && value >= than,
isNumber + " >= " + than
);
}
const defaults = {
// Functions were used because (among other reasons) that's the most
// elegant way to allow for the emptyArray one always to give a new
// array instance.
"null": function() {
return null;
},
"emptyArray": function() {
return [];
},
"false": function() {
return false;
},
"true": function() {
return true;
},
"undefined": function() {
},
"use strict": function() {
return "use strict";
}
};
var naiveIsPrimitive = Type.or(
builtin.string,
builtin.number,
builtin.boolean,
builtin.null,
builtin.undefined
);
const isPrimitive = Type.from(
(value) => {
if (value === null)
return true;
var type = typeof value;
if (type === "object" || type === "function") {
return false;
}
return true;
},
naiveIsPrimitive.toString()
);
return {
geq,
defaults,
isPrimitive
};
}
function maybeSetModuleExports(moduleGetter) {
try {
var nodeModule = moduleGetter();
var originalExports = nodeModule.exports;
var defaultExport = originalExports["default"];
} catch {
return;
}
if (defaultExport && defaultExport !== originalExports && typeof originalExports === "object") {
Object.assign(defaultExport, originalExports, { "default": defaultExport });
if (originalExports.__esModule) {
Object.defineProperty(defaultExport, "__esModule", { value: true });
}
nodeModule.exports = defaultExport;
}
}
var __defProp$2 = Object.defineProperty;
var __defNormalProp$2 = (obj, key, value) => key in obj ? __defProp$2(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __publicField$2 = (obj, key, value) => {
__defNormalProp$2(obj, typeof key !== "symbol" ? key + "" : key, value);
return value;
};
const Op$1 = Object.prototype;
const objToStr = Op$1.toString;
const hasOwn$6 = Op$1.hasOwnProperty;
class BaseType {
assert(value, deep) {
if (!this.check(value, deep)) {
var str = shallowStringify(value);
throw new Error(str + " does not match type " + this);
}
return true;
}
arrayOf() {
const elemType = this;
return new ArrayType(elemType);
}
}
class ArrayType extends BaseType {
constructor(elemType) {
super();
this.elemType = elemType;
__publicField$2(this, "kind", "ArrayType");
}
toString() {
return "[" + this.elemType + "]";
}
check(value, deep) {
return Array.isArray(value) && value.every((elem) => this.elemType.check(elem, deep));
}
}
class IdentityType extends BaseType {
constructor(value) {
super();
this.value = value;
__publicField$2(this, "kind", "IdentityType");
}
toString() {
return String(this.value);
}
check(value, deep) {
const result = value === this.value;
if (!result && typeof deep === "function") {
deep(this, value);
}
return result;
}
}
class ObjectType extends BaseType {
constructor(fields) {
super();
this.fields = fields;
__publicField$2(this, "kind", "ObjectType");
}
toString() {
return "{ " + this.fields.join(", ") + " }";
}
check(value, deep) {
return objToStr.call(value) === objToStr.call({}) && this.fields.every((field) => {
return field.type.check(value[field.name], deep);
});
}
}
class OrType extends BaseType {
constructor(types) {
super();
this.types = types;
__publicField$2(this, "kind", "OrType");
}
toString() {
return this.types.join(" | ");
}
check(value, deep) {
if (this.types.some((type) => type.check(value, !!deep))) {
return true;
}
if (typeof deep === "function") {
deep(this, value);
}
return false;
}
}
class PredicateType extends BaseType {
constructor(name, predicate) {
super();
this.name = name;
this.predicate = predicate;
__publicField$2(this, "kind", "PredicateType");
}
toString() {
return this.name;
}
check(value, deep) {
const result = this.predicate(value, deep);
if (!result && typeof deep === "function") {
deep(this, value);
}
return result;
}
}
class Def {
constructor(type, typeName) {
this.type = type;
this.typeName = typeName;
__publicField$2(this, "baseNames", []);
__publicField$2(this, "ownFields", /* @__PURE__ */ Object.create(null));
// Includes own typeName. Populated during finalization.
__publicField$2(this, "allSupertypes", /* @__PURE__ */ Object.create(null));
// Linear inheritance hierarchy. Populated during finalization.
__publicField$2(this, "supertypeList", []);
// Includes inherited fields.
__publicField$2(this, "allFields", /* @__PURE__ */ Object.create(null));
// Non-hidden keys of allFields.
__publicField$2(this, "fieldNames", []);
// This property will be overridden as true by individual Def instances
// when they are finalized.
__publicField$2(this, "finalized", false);
// False by default until .build(...) is called on an instance.
__publicField$2(this, "buildable", false);
__publicField$2(this, "buildParams", []);
}
isSupertypeOf(that) {
if (that instanceof Def) {
if (this.finalized !== true || that.finalized !== true) {
throw new Error("");
}
return hasOwn$6.call(that.allSupertypes, this.typeName);
} else {
throw new Error(that + " is not a Def");
}
}
checkAllFields(value, deep) {
var allFields = this.allFields;
if (this.finalized !== true) {
throw new Error("" + this.typeName);
}
function checkFieldByName(name) {
var field = allFields[name];
var type = field.type;
var child = field.getValue(value);
return type.check(child, deep);
}
return value !== null && typeof value === "object" && Object.keys(allFields).every(checkFieldByName);
}
bases(...supertypeNames) {
var bases = this.baseNames;
if (this.finalized) {
if (supertypeNames.length !== bases.length) {
throw new Error("");
}
for (var i = 0; i < supertypeNames.length; i++) {
if (supertypeNames[i] !== bases[i]) {
throw new Error("");
}
}
return this;
}
supertypeNames.forEach((baseName) => {
if (bases.indexOf(baseName) < 0) {
bases.push(baseName);
}
});
return this;
}
}
class Field {
constructor(name, type, defaultFn, hidden) {
this.name = name;
this.type = type;
this.defaultFn = defaultFn;
__publicField$2(this, "hidden");
this.hidden = !!hidden;
}
toString() {
return JSON.stringify(this.name) + ": " + this.type;
}
getValue(obj) {
var value = obj[this.name];
if (typeof value !== "undefined") {
return value;
}
if (typeof this.defaultFn === "function") {
value = this.defaultFn.call(obj);
}
return value;
}
}
function shallowStringify(value) {
if (Array.isArray(value)) {
return "[" + value.map(shallowStringify).join(", ") + "]";
}
if (value && typeof value === "object") {
return "{ " + Object.keys(value).map(function(key) {
return key + ": " + value[key];
}).join(", ") + " }";
}
return JSON.stringify(value);
}
function typesPlugin(_fork) {
const Type = {
or(...types) {
return new OrType(types.map((type) => Type.from(type)));
},
from(value, name) {
if (value instanceof ArrayType || value instanceof IdentityType || value instanceof ObjectType || value instanceof OrType || value instanceof PredicateType) {
return value;
}
if (value instanceof Def) {
return value.type;
}
if (isArray.check(value)) {
if (value.length !== 1) {
throw new Error("only one element type is permitted for typed arrays");
}
return new ArrayType(Type.from(value[0]));
}
if (isObject.check(value)) {
return new ObjectType(Object.keys(value).map((name2) => {
return new Field(name2, Type.from(value[name2], name2));
}));
}
if (typeof value === "function") {
var bicfIndex = builtInCtorFns.indexOf(value);
if (bicfIndex >= 0) {
return builtInCtorTypes[bicfIndex];
}
if (typeof name !== "string") {
throw new Error("missing name");
}
return new PredicateType(name, value);
}
return new IdentityType(value);
},
// Define a type whose name is registered in a namespace (the defCache) so
// that future definitions will return the same type given the same name.
// In particular, this system allows for circular and forward definitions.
// The Def object d returned from Type.def may be used to configure the
// type d.type by calling methods such as d.bases, d.build, and d.field.
def(typeName) {
return hasOwn$6.call(defCache, typeName) ? defCache[typeName] : defCache[typeName] = new DefImpl(typeName);
},
hasDef(typeName) {
return hasOwn$6.call(defCache, typeName);
}
};
var builtInCtorFns = [];
var builtInCtorTypes = [];
function defBuiltInType(name, example) {
const objStr = objToStr.call(example);
const type = new PredicateType(
name,
(value) => objToStr.call(value) === objStr
);
if (example && typeof example.constructor === "function") {
builtInCtorFns.push(example.constructor);
builtInCtorTypes.push(type);
}
return type;
}
const isString = defBuiltInType("string", "truthy");
const isFunction = defBuiltInType("function", function() {
});
const isArray = defBuiltInType("array", []);
const isObject = defBuiltInType("object", {});
const isRegExp = defBuiltInType("RegExp", /./);
const isDate = defBuiltInType("Date", /* @__PURE__ */ new Date());
const isNumber = defBuiltInType("number", 3);
const isBoolean = defBuiltInType("boolean", true);
const isNull = defBuiltInType("null", null);
const isUndefined = defBuiltInType("undefined", void 0);
const isBigInt = typeof BigInt === "function" ? defBuiltInType("BigInt", BigInt(1234)) : new PredicateType("BigInt", () => false);
const builtInTypes = {
string: isString,
function: isFunction,
array: isArray,
object: isObject,
RegExp: isRegExp,
Date: isDate,
number: isNumber,
boolean: isBoolean,
null: isNull,
undefined: isUndefined,
BigInt: isBigInt
};
var defCache = /* @__PURE__ */ Object.create(null);
function defFromValue(value) {
if (value && typeof value === "object") {
var type = value.type;
if (typeof type === "string" && hasOwn$6.call(defCache, type)) {
var d = defCache[type];
if (d.finalized) {
return d;
}
}
}
return null;
}
class DefImpl extends Def {
constructor(typeName) {
super(
new PredicateType(typeName, (value, deep) => this.check(value, deep)),
typeName
);
}
check(value, deep) {
if (this.finalized !== true) {
throw new Error(
"prematurely checking unfinalized type " + this.typeName
);
}
if (value === null || typeof value !== "object") {
return false;
}
var vDef = defFromValue(value);
if (!vDef) {
if (this.typeName === "SourceLocation" || this.typeName === "Position") {
return this.checkAllFields(value, deep);
}
return false;
}
if (deep && vDef === this) {
return this.checkAllFields(value, deep);
}
if (!this.isSupertypeOf(vDef)) {
return false;
}
if (!deep) {
return true;
}
return vDef.checkAllFields(value, deep) && this.checkAllFields(value, false);
}
build(...buildParams) {
this.buildParams = buildParams;
if (this.buildable) {
return this;
}
this.field("type", String, () => this.typeName);
this.buildable = true;
const addParam = (built, param, arg, isArgAvailable) => {
if (hasOwn$6.call(built, param))
return;
var all = this.allFields;
if (!hasOwn$6.call(all, param)) {
throw new Error("" + param);
}
var field = all[param];
var type = field.type;
var value;
if (isArgAvailable) {
value = arg;
} else if (field.defaultFn) {
value = field.defaultFn.call(built);
} else {
var message = "no value or default function given for field " + JSON.stringify(param) + " of " + this.typeName + "(" + this.buildParams.map(function(name) {
return all[name];
}).join(", ") + ")";
throw new Error(message);
}
if (!type.check(value)) {
throw new Error(
shallowStringify(value) + " does not match field " + field + " of type " + this.typeName
);
}
built[param] = value;
};
const builder = (...args) => {
var argc = args.length;
if (!this.finalized) {
throw new Error(
"attempting to instantiate unfinalized type " + this.typeName
);
}
var built = Object.create(nodePrototype);
this.buildParams.forEach(function(param, i) {
if (i < argc) {
addParam(built, param, args[i], true);
} else {
addParam(built, param, null, false);
}
});
Object.keys(this.allFields).forEach(function(param) {
addParam(built, param, null, false);
});
if (built.type !== this.typeName) {
throw new Error("");
}
return built;
};
builder.from = (obj) => {
if (!this.finalized) {
throw new Error(
"attempting to instantiate unfinalized type " + this.typeName
);
}
var built = Object.create(nodePrototype);
Object.keys(this.allFields).forEach(function(param) {
if (hasOwn$6.call(obj, param)) {
addParam(built, param, obj[param], true);
} else {
addParam(built, param, null, false);
}
});
if (built.type !== this.typeName) {
throw new Error("");
}
return built;
};
Object.defineProperty(builders, getBuilderName(this.typeName), {
enumerable: true,
value: builder
});
return this;
}
// The reason fields are specified using .field(...) instead of an object
// literal syntax is somewhat subtle: the object literal syntax would
// support only one key and one value, but with .field(...) we can pass
// any number of arguments to specify the field.
field(name, type, defaultFn, hidden) {
if (this.finalized) {
console.error("Ignoring attempt to redefine field " + JSON.stringify(name) + " of finalized type " + JSON.stringify(this.typeName));
return this;
}
this.ownFields[name] = new Field(name, Type.from(type), defaultFn, hidden);
return this;
}
finalize() {
if (!this.finalized) {
var allFields = this.allFields;
var allSupertypes = this.allSupertypes;
this.baseNames.forEach((name) => {
var def = defCache[name];
if (def instanceof Def) {
def.finalize();
extend(allFields, def.allFields);
extend(allSupertypes, def.allSupertypes);
} else {
var message = "unknown supertype name " + JSON.stringify(name) + " for subtype " + JSON.stringify(this.typeName);
throw new Error(message);
}
});
extend(allFields, this.ownFields);
allSupertypes[this.typeName] = this;
this.fieldNames.length = 0;
for (var fieldName in allFields) {
if (hasOwn$6.call(allFields, fieldName) && !allFields[fieldName].hidden) {
this.fieldNames.push(fieldName);
}
}
Object.defineProperty(namedTypes, this.typeName, {
enumerable: true,
value: this.type
});
this.finalized = true;
populateSupertypeList(this.typeName, this.supertypeList);
if (this.buildable && this.supertypeList.lastIndexOf("Expression") >= 0) {
wrapExpressionBuilderWithStatement(this.typeName);
}
}
}
}
function getSupertypeNames(typeName) {
if (!hasOwn$6.call(defCache, typeName)) {
throw new Error("");
}
var d = defCache[typeName];
if (d.finalized !== true) {
throw new Error("");
}
return d.supertypeList.slice(1);
}
function computeSupertypeLookupTable(candidates) {
var table = {};
var typeNames = Object.keys(defCache);
var typeNameCount = typeNames.length;
for (var i = 0; i < typeNameCount; ++i) {
var typeName = typeNames[i];
var d = defCache[typeName];
if (d.finalized !== true) {
throw new Error("" + typeName);
}
for (var j = 0; j < d.supertypeList.length; ++j) {
var superTypeName = d.supertypeList[j];
if (hasOwn$6.call(candidates, superTypeName)) {
table[typeName] = superTypeName;
break;
}
}
}
return table;
}
var builders = /* @__PURE__ */ Object.create(null);
var nodePrototype = {};
function defineMethod(name, func) {
var old = nodePrototype[name];
if (isUndefined.check(func)) {
delete nodePrototype[name];
} else {
isFunction.assert(func);
Object.defineProperty(nodePrototype, name, {
enumerable: true,
// For discoverability.
configurable: true,
// For delete proto[name].
value: func
});
}
return old;
}
function getBuilderName(typeName) {
return typeName.replace(/^[A-Z]+/, function(upperCasePrefix) {
var len = upperCasePrefix.length;
switch (len) {
case 0:
return "";
case 1:
return upperCasePrefix.toLowerCase();
default:
return upperCasePrefix.slice(
0,
len - 1
).toLowerCase() + upperCasePrefix.charAt(len - 1);
}
});
}
function getStatementBuilderName(typeName) {
typeName = getBuilderName(typeName);
return typeName.replace(/(Expression)?$/, "Statement");
}
var namedTypes = {};
function getFieldNames(object) {
var d = defFromValue(object);
if (d) {
return d.fieldNames.slice(0);
}
if ("type" in object) {
throw new Error(
"did not recognize object of type " + JSON.stringify(object.type)
);
}
return Object.keys(object);
}
function getFieldValue(object, fieldName) {
var d = defFromValue(object);
if (d) {
var field = d.allFields[fieldName];
if (field) {
return field.getValue(object);
}
}
return object && object[fieldName];
}
function eachField(object, callback, context) {
getFieldNames(object).forEach(function(name) {
callback.call(this, name, getFieldValue(object, name));
}, context);
}
function someField(object, callback, context) {
return getFieldNames(object).some(function(name) {
return callback.call(this, name, getFieldValue(object, name));
}, context);
}
function wrapExpressionBuilderWithStatement(typeName) {
var wrapperName = getStatementBuilderName(typeName);
if (builders[wrapperName])
return;
var wrapped = builders[getBuilderName(typeName)];
if (!wrapped)
return;
const builder = function(...args) {
return builders.expressionStatement(wrapped.apply(builders, args));
};
builder.from = function(...args) {
return builders.expressionStatement(wrapped.from.apply(builders, args));
};
builders[wrapperName] = builder;
}
function populateSupertypeList(typeName, list) {
list.length = 0;
list.push(typeName);
var lastSeen = /* @__PURE__ */ Object.create(null);
for (var pos = 0; pos < list.length; ++pos) {
typeName = list[pos];
var d = defCache[typeName];
if (d.finalized !== true) {
throw new Error("");
}
if (hasOwn$6.call(lastSeen, typeName)) {
delete list[lastSeen[typeName]];
}
lastSeen[typeName] = pos;
list.push.apply(list, d.baseNames);
}
for (var to = 0, from = to, len = list.length; from < len; ++from) {
if (hasOwn$6.call(list, from)) {
list[to++] = list[from];
}
}
list.length = to;
}
function extend(into, from) {
Object.keys(from).forEach(function(name) {
into[name] = from[name];
});
return into;
}
function finalize() {
Object.keys(defCache).forEach(function(name) {
defCache[name].finalize();
});
}
return {
Type,
builtInTypes,
getSupertypeNames,
computeSupertypeLookupTable,
builders,
defineMethod,
getBuilderName,
getStatementBuilderName,
namedTypes,
getFieldNames,
getFieldValue,
eachField,
someField,
finalize
};
}
maybeSetModuleExports(() => module);
var Op = Object.prototype;
var hasOwn$5 = Op.hasOwnProperty;
function pathPlugin(fork) {
var types = fork.use(typesPlugin);
var isArray = types.builtInTypes.array;
var isNumber = types.builtInTypes.number;
const Path = function Path2(value, parentPath, name) {
if (!(this instanceof Path2)) {
throw new Error("Path constructor cannot be invoked without 'new'");
}
if (parentPath) {
if (!(parentPath instanceof Path2)) {
throw new Error("");
}
} else {
parentPath = null;
name = null;
}
this.value = value;
this.parentPath = parentPath;
this.name = name;
this.__childCache = null;
};
var Pp = Path.prototype;
function getChildCache(path) {
return path.__childCache || (path.__childCache = /* @__PURE__ */ Object.create(null));
}
function getChildPath(path, name) {
var cache = getChildCache(path);
var actualChildValue = path.getValueProperty(name);
var childPath = cache[name];
if (!hasOwn$5.call(cache, name) || // Ensure consistency between cache and reality.
childPath.value !== actualChildValue) {
childPath = cache[name] = new path.constructor(
actualChildValue,
path,
name
);
}
return childPath;
}
Pp.getValueProperty = function getValueProperty(name) {
return this.value[name];
};
Pp.get = function get(...names) {
var path = this;
var count = names.length;
for (var i = 0; i < count; ++i) {
path = getChildPath(path, names[i]);
}
return path;
};
Pp.each = function each(callback, context) {
var childPaths = [];
var len = this.value.length;
var i = 0;
for (var i = 0; i < len; ++i) {
if (hasOwn$5.call(this.value, i)) {
childPaths[i] = this.get(i);
}
}
context = context || this;
for (i = 0; i < len; ++i) {
if (hasOwn$5.call(childPaths, i)) {
callback.call(context, childPaths[i]);
}
}
};
Pp.map = function map(callback, context) {
var result = [];
this.each(function(childPath) {
result.push(callback.call(this, childPath));
}, context);
return result;
};
Pp.filter = function filter(callback, context) {
var result = [];
this.each(function(childPath) {
if (callback.call(this, childPath)) {
result.push(childPath);
}
}, context);
return result;
};
function emptyMoves() {
}
function getMoves(path, offset, start, end) {
isArray.assert(path.value);
if (offset === 0) {
return emptyMoves;
}
var length = path.value.length;
if (length < 1) {
return emptyMoves;
}
var argc = arguments.length;
if (argc === 2) {
start = 0;
end = length;
} else if (argc === 3) {
start = Math.max(start, 0);
end = length;
} else {
start = Math.max(start, 0);
end = Math.min(end, length);
}
isNumber.assert(start);
isNumber.assert(end);
var moves = /* @__PURE__ */ Object.create(null);
var cache = getChildCache(path);
for (var i = start; i < end; ++i) {
if (hasOwn$5.call(path.value, i)) {
var childPath = path.get(i);
if (childPath.name !== i) {
throw new Error("");
}
var newIndex = i + offset;
childPath.name = newIndex;
moves[newIndex] = childPath;
delete cache[i];
}
}
delete cache.length;
return function() {
for (var newIndex2 in moves) {
var childPath2 = moves[newIndex2];
if (childPath2.name !== +newIndex2) {
throw new Error("");
}
cache[newIndex2] = childPath2;
path.value[newIndex2] = childPath2.value;
}
};
}
Pp.shift = function shift() {
var move = getMoves(this, -1);
var result = this.value.shift();
move();
return result;
};
Pp.unshift = function unshift(...args) {
var move = getMoves(this, args.length);
var result = this.value.unshift.apply(this.value, args);
move();
return result;
};
Pp.push = function push(...args) {
isArray.assert(this.value);
delete getChildCache(this).length;
return this.value.push.apply(this.value, args);
};
Pp.pop = function pop() {
isArray.assert(this.value);
var cache = getChildCache(this);
delete cache[this.value.length - 1];
delete cache.length;
return this.value.pop();
};
Pp.insertAt = function insertAt(index) {
var argc = arguments.length;
var move = getMoves(this, argc - 1, index);
if (move === emptyMoves && argc <= 1) {
return this;
}
index = Math.max(index, 0);
for (var i = 1; i < argc; ++i) {
this.value[index + i - 1] = arguments[i];
}
move();
return this;
};
Pp.insertBefore = function insertBefore(...args) {
var pp = this.parentPath;
var argc = args.length;
var insertAtArgs = [this.name];
for (var i = 0; i < argc; ++i) {
insertAtArgs.push(args[i]);
}
return pp.insertAt.apply(pp, insertAtArgs);
};
Pp.insertAfter = function insertAfter(...args) {
var pp = this.parentPath;
var argc = args.length;
var insertAtArgs = [this.name + 1];
for (var i = 0; i < argc; ++i) {
insertAtArgs.push(args[i]);
}
return pp.insertAt.apply(pp, insertAtArgs);
};
function repairRelationshipWithParent(path) {
if (!(path instanceof Path)) {
throw new Error("");
}
var pp = path.parentPath;
if (!pp) {
return path;
}
var parentValue = pp.value;
var parentCache = getChildCache(pp);
if (parentValue[path.name] === path.value) {
parentCache[path.name] = path;
} else if (isArray.check(parentValue)) {
var i = parentValue.indexOf(path.value);
if (i >= 0) {
parentCache[path.name = i] = path;
}
} else {
parentValue[path.name] = path.value;
parentCache[path.name] = path;
}
if (parentValue[path.name] !== path.value) {
throw new Error("");
}
if (path.parentPath.get(path.name) !== path) {
throw new Error("");
}
return path;
}
Pp.replace = function replace(replacement) {
var results = [];
var parentValue = this.parentPath.value;
var parentCache = getChildCache(this.parentPath);
var count = arguments.length;
repairRelationshipWithParent(this);
if (isArray.check(parentValue)) {
var originalLength = parentValue.length;
var move = getMoves(this.parentPath, count - 1, this.name + 1);
var spliceArgs = [this.name, 1];
for (var i = 0; i < count; ++i) {
spliceArgs.push(arguments[i]);
}
var splicedOut = parentValue.splice.apply(parentValue, spliceArgs);
if (splicedOut[0] !== this.value) {
throw new Error("");
}
if (parentValue.length !== originalLength - 1 + count) {
throw new Error("");
}
move();
if (count === 0) {
delete this.value;
delete parentCache[this.name];
this.__childCache = null;
} else {
if (parentValue[this.name] !== replacement) {
throw new Error("");
}
if (this.value !== replacement) {
this.value = replacement;
this.__childCache = null;
}
for (i = 0; i < count; ++i) {
results.push(this.parentPath.get(this.name + i));
}
if (results[0] !== this) {
throw new Error("");
}
}
} else if (count === 1) {
if (this.value !== replacement) {
this.__childCache = null;
}
this.value = parentValue[this.name] = replacement;
results.push(this);
} else if (count === 0) {
delete parentValue[this.name];
delete this.value;
this.__childCache = null;
} else {
throw new Error("Could not replace path");
}
return results;
};
return Path;
}
maybeSetModuleExports(() => module);
var hasOwn$4 = Object.prototype.hasOwnProperty;
function scopePlugin(fork) {
var types = fork.use(typesPlugin);
var Type = types.Type;
var namedTypes = types.namedTypes;
var Node = namedTypes.Node;
var Expression = namedTypes.Expression;
var isArray = types.builtInTypes.array;
var b = types.builders;
const Scope = function Scope2(path, parentScope) {
if (!(this instanceof Scope2)) {
throw new Error("Scope constructor cannot be invoked without 'new'");
}
if (!TypeParameterScopeType.check(path.value)) {
ScopeType.assert(path.value);
}
var depth;
if (parentScope) {
if (!(parentScope instanceof Scope2)) {
throw new Error("");
}
depth = parentScope.depth + 1;
} else {
parentScope = null;
depth = 0;
}
Object.defineProperties(this, {
path: { value: path },
node: { value: path.value },
isGlobal: { value: !parentScope, enumerable: true },
depth: { value: depth },
parent: { value: parentScope },
bindings: { value: {} },
types: { value: {} }
});
};
var ScopeType = Type.or(
// Program nodes introduce global scopes.
namedTypes.Program,
// Function is the supertype of FunctionExpression,
// FunctionDeclaration, ArrowExpression, etc.
namedTypes.Function,
// In case you didn't know, the caught parameter shadows any variable
// of the same name in an outer scope.
namedTypes.CatchClause
);
var TypeParameterScopeType = Type.or(
namedTypes.Function,
namedTypes.ClassDeclaration,
namedTypes.ClassExpression,
namedTypes.InterfaceDeclaration,
namedTypes.TSInterfaceDeclaration,
namedTypes.TypeAlias,
namedTypes.TSTypeAliasDeclaration
);
var FlowOrTSTypeParameterType = Type.or(
namedTypes.TypeParameter,
namedTypes.TSTypeParameter
);
Scope.isEstablishedBy = function(node) {
return ScopeType.check(node) || TypeParameterScopeType.check(node);
};
var Sp = Scope.prototype;
Sp.didScan = false;
Sp.declares = function(name) {
this.scan();
return hasOwn$4.call(this.bindings, name);
};
Sp.declaresType = function(name) {
this.scan();
return hasOwn$4.call(this.types, name);
};
Sp.declareTemporary = function(prefix) {
if (prefix) {
if (!/^[a-z$_]/i.test(prefix)) {
throw new Error("");
}
} else {
prefix = "t$";
}
prefix += this.depth.toString(36) + "$";
this.scan();
var index = 0;
while (this.declares(prefix + index)) {
++index;
}
var name = prefix + index;
return this.bindings[name] = types.builders.identifier(name);
};
Sp.injectTemporary = function(identifier, init) {
identifier || (identifier = this.declareTemporary());
var bodyPath = this.path.get("body");
if (namedTypes.BlockStatement.check(bodyPath.value)) {
bodyPath = bodyPath.get("body");
}
bodyPath.unshift(
b.variableDeclaration(
"var",
[b.variableDeclarator(identifier, init || null)]
)
);
return identifier;
};
Sp.scan = function(force) {
if (force || !this.didScan) {
for (var name in this.bindings) {
delete this.bindings[name];
}
for (var name in this.types) {
delete this.types[name];
}
scanScope(this.path, this.bindings, this.types);
this.didScan = true;
}
};
Sp.getBindings = function() {
this.scan();
return this.bindings;
};
Sp.getTypes = function() {
this.scan();
return this.types;
};
function scanScope(path, bindings, scopeTypes) {
var node = path.value;
if (TypeParameterScopeType.check(node)) {
const params = path.get("typeParameters", "params");
if (isArray.check(params.value)) {
params.each((childPath) => {
addTypeParameter(childPath, scopeTypes);
});
}
}
if (ScopeType.check(node)) {
if (namedTypes.CatchClause.check(node)) {
addPattern(path.get("param"), bindings);
} else {
recursiveScanScope(path, bindings, scopeTypes);
}
}
}
function recursiveScanScope(path, bindings, scopeTypes) {
var node = path.value;
if (path.parent && namedTypes.FunctionExpression.check(path.parent.node) && path.parent.node.id) {
addPattern(path.parent.get("id"), bindings);
}
if (!node) ; else if (isArray.check(node)) {
path.each((childPath) => {
recursiveScanChild(childPath, bindings, scopeTypes);
});
} else if (namedTypes.Function.check(node)) {
path.get("params").each((paramPath) => {
addPattern(paramPath, bindings);
});
recursiveScanChild(path.get("body"), bindings, scopeTypes);
recursiveScanScope(path.get("typeParameters"), bindings, scopeTypes);
} else if (namedTypes.TypeAlias && namedTypes.TypeAlias.check(node) || namedTypes.InterfaceDeclaration && namedTypes.InterfaceDeclaration.check(node) || namedTypes.TSTypeAliasDeclaration && namedTypes.TSTypeAliasDeclaration.check(node) || namedTypes.TSInterfaceDeclaration && namedTypes.TSInterfaceDeclaration.check(node)) {
addTypePattern(path.get("id"), scopeTypes);
} else if (namedTypes.VariableDeclarator.check(node)) {
addPattern(path.get("id"), bindings);
recursiveScanChild(path.get("init"), bindings, scopeTypes);
} else if (node.type === "ImportSpecifier" || node.type === "ImportNamespaceSpecifier" || node.type === "ImportDefaultSpecifier") {
addPattern(
// Esprima used to use the .name field to refer to the local
// binding identifier for ImportSpecifier nodes, but .id for
// ImportNamespaceSpecifier and ImportDefaultSpecifier nodes.
// ESTree/Acorn/ESpree use .local for all three node types.
path.get(node.local ? "local" : node.name ? "name" : "id"),
bindings
);
} else if (Node.check(node) && !Expression.check(node)) {
types.eachField(node, function(name, child) {
var childPath = path.get(name);
if (!pathHasValue(childPath, child)) {
throw new Error("");
}
recursiveScanChild(childPath, bindings, scopeTypes);
});
}
}
function pathHasValue(path, value) {
if (path.value === value) {
return true;
}
if (Array.isArray(path.value) && path.value.length === 0 && Array.isArray(value) && value.length === 0) {
return true;
}
return false;
}
function recursiveScanChild(path, bindings, scopeTypes) {
var node = path.value;
if (!node || Expression.check(node)) ; else if (namedTypes.FunctionDeclaration.check(node) && node.id !== null) {
addPattern(path.get("id"), bindings);
} else if (namedTypes.ClassDeclaration && namedTypes.ClassDeclaration.check(node) && node.id !== null) {
addPattern(path.get("id"), bindings);
recursiveScanScope(path.get("typeParameters"), bindings, scopeTypes);
} else if (namedTypes.InterfaceDeclaration && namedTypes.InterfaceDeclaration.check(node) || namedTypes.TSInterfaceDeclaration && namedTypes.TSInterfaceDeclaration.check(node)) {
addTypePattern(path.get("id"), scopeTypes);
} else if (ScopeType.check(node)) {
if (namedTypes.CatchClause.check(node) && // TODO Broaden this to accept any pattern.
namedTypes.Identifier.check(node.param)) {
var catchParamName = node.param.name;
var hadBinding = hasOwn$4.call(bindings, catchParamName);
recursiveScanScope(path.get("body"), bindings, scopeTypes);
if (!hadBinding) {
delete bindings[catchParamName];
}
}
} else {
recursiveScanScope(path, bindings, scopeTypes);
}
}
function addPattern(patternPath, bindings) {
var pattern = patternPath.value;
namedTypes.Pattern.assert(pattern);
if (namedTypes.Identifier.check(pattern)) {
if (hasOwn$4.call(bindings, pattern.name)) {
bindings[pattern.name].push(patternPath);
} else {
bindings[pattern.name] = [patternPath];
}
} else if (namedTypes.AssignmentPattern && namedTypes.AssignmentPattern.check(pattern)) {
addPattern(patternPath.get("left"), bindings);
} else if (namedTypes.ObjectPattern && namedTypes.ObjectPattern.check(pattern)) {
patternPath.get("properties").each(function(propertyPath) {
var property = propertyPath.value;
if (namedTypes.Pattern.check(property)) {
addPattern(propertyPath, bindings);
} else if (namedTypes.Property.check(property) || namedTypes.ObjectProperty && namedTypes.ObjectProperty.check(property)) {
addPattern(propertyPath.get("value"), bindings);
} else if (namedTypes.SpreadProperty && namedTypes.SpreadProperty.check(property)) {
addPattern(propertyPath.get("argument"), bindings);
}
});
} else if (namedTypes.ArrayPattern && namedTypes.ArrayPattern.check(pattern)) {
patternPath.get("elements").each(function(elementPath) {
var element = elementPath.value;
if (namedTypes.Pattern.check(element)) {
addPattern(elementPath, bindings);
} else if (namedTypes.SpreadElement && namedTypes.SpreadElement.check(element)) {
addPattern(elementPath.get("argument"), bindings);
}
});
} else if (namedTypes.PropertyPattern && namedTypes.PropertyPattern.check(pattern)) {
addPattern(patternPath.get("pattern"), bindings);
} else if (namedTypes.SpreadElementPattern && namedTypes.SpreadElementPattern.check(pattern) || namedTypes.RestElement && namedTypes.RestElement.check(pattern) || namedTypes.SpreadPropertyPattern && namedTypes.SpreadPropertyPattern.check(pattern)) {
addPattern(patternPath.get("argument"), bindings);
}
}
function addTypePattern(patternPath, types2) {
var pattern = patternPath.value;
namedTypes.Pattern.assert(pattern);
if (namedTypes.Identifier.check(pattern)) {
if (hasOwn$4.call(types2, pattern.name)) {
types2[pattern.name].push(patternPath);
} else {
types2[pattern.name] = [patternPath];
}
}
}
function addTypeParameter(parameterPath, types2) {
var parameter = parameterPath.value;
FlowOrTSTypeParameterType.assert(parameter);
if (hasOwn$4.call(types2, parameter.name)) {
types2[parameter.name].push(parameterPath);
} else {
types2[parameter.name] = [parameterPath];
}
}
Sp.lookup = function(name) {
for (var scope = this; scope; scope = scope.parent)
if (scope.declares(name))
break;
return scope;
};
Sp.lookupType = function(name) {
for (var scope = this; scope; scope = scope.parent)
if (scope.declaresType(name))
break;
return scope;
};
Sp.getGlobalScope = function() {
var scope = this;
while (!scope.isGlobal)
scope = scope.parent;
return scope;
};
return Scope;
}
maybeSetModuleExports(() => module);
function nodePathPlugin(fork) {
var types = fork.use(typesPlugin);
var n = types.namedTypes;
var b = types.builders;
var isNumber = types.builtInTypes.number;
var isArray = types.builtInTypes.array;
var Path2 = fork.use(pathPlugin);
var Scope2 = fork.use(scopePlugin);
const NodePath = function NodePath2(value, parentPath, name) {
if (!(this instanceof NodePath2)) {
throw new Error("NodePath constructor cannot be invoked without 'new'");
}
Path2.call(this, value, parentPath, name);
};
var NPp = NodePath.prototype = Object.create(Path2.prototype, {
constructor: {
value: NodePath,
enumerable: false,
writable: true,
configurable: true
}
});
Object.defineProperties(NPp, {
node: {
get: function() {
Object.defineProperty(this, "node", {
configurable: true,
// Enable deletion.
value: this._computeNode()
});
return this.node;
}
},
parent: {
get: function() {
Object.defineProperty(this, "parent", {
configurable: true,
// Enable deletion.
value: this._computeParent()
});
return this.parent;
}
},
scope: {
get: function() {
Object.defineProperty(this, "scope", {
configurable: true,
// Enable deletion.
value: this._computeScope()
});
return this.scope;
}
}
});
NPp.replace = function() {
delete this.node;
delete this.parent;
delete this.scope;
return Path2.prototype.replace.apply(this, arguments);
};
NPp.prune = function() {
var remainingNodePath = this.parent;
this.replace();
return cleanUpNodesAfterPrune(remainingNodePath);
};
NPp._computeNode = function() {
var value = this.value;
if (n.Node.check(value)) {
return value;
}
var pp = this.parentPath;
return pp && pp.node || null;
};
NPp._computeParent = function() {
var value = this.value;
var pp = this.parentPath;
if (!n.Node.check(value)) {
while (pp && !n.Node.check(pp.value)) {
pp = pp.parentPath;
}
if (pp) {
pp = pp.parentPath;
}
}
while (pp && !n.Node.check(pp.value)) {
pp = pp.parentPath;
}
return pp || null;
};
NPp._computeScope = function() {
var value = this.value;
var pp = this.parentPath;
var scope = pp && pp.scope;
if (n.Node.check(value) && Scope2.isEstablishedBy(value)) {
scope = new Scope2(this, scope);
}
return scope || null;
};
NPp.getValueProperty = function(name) {
return types.getFieldValue(this.value, name);
};
NPp.needsParens = function(assumeExpressionContext) {
var pp = this.parentPath;
if (!pp) {
return false;
}
var node = this.value;
if (!n.Expression.check(node)) {
return false;
}
if (node.type === "Identifier") {
return false;
}
while (!n.Node.check(pp.value)) {
pp = pp.parentPath;
if (!pp) {
return false;
}
}
var parent = pp.value;
switch (node.type) {
case "UnaryExpression":
case "SpreadElement":
case "SpreadProperty":
return parent.type === "MemberExpression" && this.name === "object" && parent.object === node;
case "BinaryExpression":
case "LogicalExpression":
switch (parent.type) {
case "CallExpression":
return this.name === "callee" && parent.callee === node;
case "UnaryExpression":
case "SpreadElement":
case "SpreadProperty":
return true;
case "MemberExpression":
return this.name === "object" && parent.object === node;
case "BinaryExpression":
case "LogicalExpression": {
const n2 = node;
const po = parent.operator;
const pp2 = PRECEDENCE[po];
const no = n2.operator;
const np = PRECEDENCE[no];
if (pp2 > np) {
return true;
}
if (pp2 === np && this.name === "right") {
if (parent.right !== n2) {
throw new Error("Nodes must be equal");
}
return true;
}
}
default:
return false;
}
case "SequenceExpression":
switch (parent.type) {
case "ForStatement":
return false;
case "ExpressionStatement":
return this.name !== "expression";
default:
return true;
}
case "YieldExpression":
switch (parent.type) {
case "BinaryExpression":
case "LogicalExpression":
case "UnaryExpression":
case "SpreadElement":
case "SpreadProperty":
case "CallExpression":
case "MemberExpression":
case "NewExpression":
case "ConditionalExpression":
case "YieldExpression":
return true;
default:
return false;
}
case "Literal":
return parent.type === "MemberExpression" && isNumber.check(node.value) && this.name === "object" && parent.object === node;
case "AssignmentExpression":
case "ConditionalExpression":
switch (parent.type) {
case "UnaryExpression":
case "SpreadElement":
case "SpreadProperty":
case "BinaryExpression":
case "LogicalExpression":
return true;
case "CallExpression":
return this.name === "callee" && parent.callee === node;
case "ConditionalExpression":
return this.name === "test" && parent.test === node;
case "MemberExpression":
return this.name === "object" && parent.object === node;
default:
return false;
}
default:
if (parent.type === "NewExpression" && this.name === "callee" && parent.callee === node) {
return containsCallExpression(node);
}
}
if (assumeExpressionContext !== true && !this.canBeFirstInStatement() && this.firstInStatement())
return true;
return false;
};
function isBinary(node) {
return n.BinaryExpression.check(node) || n.LogicalExpression.check(node);
}
var PRECEDENCE = {};
[
["||"],
["&&"],
["|"],
["^"],
["&"],
["==", "===", "!=", "!=="],
["<", ">", "<=", ">=", "in", "instanceof"],
[">>", "<<", ">>>"],
["+", "-"],
["*", "/", "%"]
].forEach(function(tier, i) {
tier.forEach(function(op) {
PRECEDENCE[op] = i;
});
});
function containsCallExpression(node) {
if (n.CallExpression.check(node)) {
return true;
}
if (isArray.check(node)) {
return node.some(containsCallExpression);
}
if (n.Node.check(node)) {
return types.someField(node, function(_name, child) {
return containsCallExpression(child);
});
}
return false;
}
NPp.canBeFirstInStatement = function() {
var node = this.node;
return !n.FunctionExpression.check(node) && !n.ObjectExpression.check(node);
};
NPp.firstInStatement = function() {
return firstInStatement(this);
};
function firstInStatement(path) {
for (var node, parent; path.parent; path = path.parent) {
node = path.node;
parent = path.parent.node;
if (n.BlockStatement.check(parent) && path.parent.name === "body" && path.name === 0) {
if (parent.body[0] !== node) {
throw new Error("Nodes must be equal");
}
return true;
}
if (n.ExpressionStatement.check(parent) && path.name === "expression") {
if (parent.expression !== node) {
throw new Error("Nodes must be equal");
}
return true;
}
if (n.SequenceExpression.check(parent) && path.parent.name === "expressions" && path.name === 0) {
if (parent.expressions[0] !== node) {
throw new Error("Nodes must be equal");
}
continue;
}
if (n.CallExpression.check(parent) && path.name === "callee") {
if (parent.callee !== node) {
throw new Error("Nodes must be equal");
}
continue;
}
if (n.MemberExpression.check(parent) && path.name === "object") {
if (parent.object !== node) {
throw new Error("Nodes must be equal");
}
continue;
}
if (n.ConditionalExpression.check(parent) && path.name === "test") {
if (parent.test !== node) {
throw new Error("Nodes must be equal");
}
continue;
}
if (isBinary(parent) && path.name === "left") {
if (parent.left !== node) {
throw new Error("Nodes must be equal");
}
continue;
}
if (n.UnaryExpression.check(parent) && !parent.prefix && path.name === "argument") {
if (parent.argument !== node) {
throw new Error("Nodes must be equal");
}
continue;
}
return false;
}
return true;
}
function cleanUpNodesAfterPrune(remainingNodePath) {
if (n.VariableDeclaration.check(remainingNodePath.node)) {
var declarations = remainingNodePath.get("declarations").value;
if (!declarations || declarations.length === 0) {
return remainingNodePath.prune();
}
} else if (n.ExpressionStatement.check(remainingNodePath.node)) {
if (!remainingNodePath.get("expression").value) {
return remaini