371 lines
10 KiB
JavaScript
371 lines
10 KiB
JavaScript
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"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.matchesPattern = matchesPattern;
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exports.has = has;
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exports.isStatic = isStatic;
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exports.isnt = isnt;
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exports.equals = equals;
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exports.isNodeType = isNodeType;
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exports.canHaveVariableDeclarationOrExpression = canHaveVariableDeclarationOrExpression;
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exports.canSwapBetweenExpressionAndStatement = canSwapBetweenExpressionAndStatement;
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exports.isCompletionRecord = isCompletionRecord;
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exports.isStatementOrBlock = isStatementOrBlock;
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exports.referencesImport = referencesImport;
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exports.getSource = getSource;
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exports.willIMaybeExecuteBefore = willIMaybeExecuteBefore;
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exports._guessExecutionStatusRelativeTo = _guessExecutionStatusRelativeTo;
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exports._guessExecutionStatusRelativeToDifferentFunctions = _guessExecutionStatusRelativeToDifferentFunctions;
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exports.resolve = resolve;
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exports._resolve = _resolve;
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exports.isConstantExpression = isConstantExpression;
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exports.isInStrictMode = isInStrictMode;
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exports.is = void 0;
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function _includes() {
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const data = _interopRequireDefault(require("lodash/includes"));
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_includes = function () {
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return data;
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};
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return data;
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}
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function t() {
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const data = _interopRequireWildcard(require("@babel/types"));
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t = function () {
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return data;
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};
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return data;
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}
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function matchesPattern(pattern, allowPartial) {
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return t().matchesPattern(this.node, pattern, allowPartial);
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}
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function has(key) {
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const val = this.node && this.node[key];
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if (val && Array.isArray(val)) {
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return !!val.length;
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} else {
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return !!val;
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}
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}
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function isStatic() {
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return this.scope.isStatic(this.node);
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}
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const is = has;
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exports.is = is;
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function isnt(key) {
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return !this.has(key);
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}
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function equals(key, value) {
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return this.node[key] === value;
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}
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function isNodeType(type) {
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return t().isType(this.type, type);
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}
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function canHaveVariableDeclarationOrExpression() {
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return (this.key === "init" || this.key === "left") && this.parentPath.isFor();
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}
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function canSwapBetweenExpressionAndStatement(replacement) {
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if (this.key !== "body" || !this.parentPath.isArrowFunctionExpression()) {
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return false;
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}
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if (this.isExpression()) {
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return t().isBlockStatement(replacement);
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} else if (this.isBlockStatement()) {
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return t().isExpression(replacement);
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}
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return false;
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}
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function isCompletionRecord(allowInsideFunction) {
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let path = this;
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let first = true;
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do {
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const container = path.container;
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if (path.isFunction() && !first) {
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return !!allowInsideFunction;
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}
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first = false;
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if (Array.isArray(container) && path.key !== container.length - 1) {
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return false;
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}
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} while ((path = path.parentPath) && !path.isProgram());
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return true;
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}
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function isStatementOrBlock() {
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if (this.parentPath.isLabeledStatement() || t().isBlockStatement(this.container)) {
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return false;
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} else {
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return (0, _includes().default)(t().STATEMENT_OR_BLOCK_KEYS, this.key);
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}
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}
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function referencesImport(moduleSource, importName) {
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if (!this.isReferencedIdentifier()) return false;
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const binding = this.scope.getBinding(this.node.name);
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if (!binding || binding.kind !== "module") return false;
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const path = binding.path;
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const parent = path.parentPath;
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if (!parent.isImportDeclaration()) return false;
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if (parent.node.source.value === moduleSource) {
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if (!importName) return true;
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} else {
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return false;
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}
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if (path.isImportDefaultSpecifier() && importName === "default") {
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return true;
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}
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if (path.isImportNamespaceSpecifier() && importName === "*") {
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return true;
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}
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if (path.isImportSpecifier() && path.node.imported.name === importName) {
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return true;
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}
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return false;
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}
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function getSource() {
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const node = this.node;
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if (node.end) {
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const code = this.hub.getCode();
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if (code) return code.slice(node.start, node.end);
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}
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return "";
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}
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function willIMaybeExecuteBefore(target) {
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return this._guessExecutionStatusRelativeTo(target) !== "after";
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}
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function _guessExecutionStatusRelativeTo(target) {
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const targetFuncParent = target.scope.getFunctionParent() || target.scope.getProgramParent();
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const selfFuncParent = this.scope.getFunctionParent() || target.scope.getProgramParent();
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if (targetFuncParent.node !== selfFuncParent.node) {
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const status = this._guessExecutionStatusRelativeToDifferentFunctions(targetFuncParent);
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if (status) {
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return status;
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} else {
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target = targetFuncParent.path;
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}
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}
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const targetPaths = target.getAncestry();
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if (targetPaths.indexOf(this) >= 0) return "after";
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const selfPaths = this.getAncestry();
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let commonPath;
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let targetIndex;
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let selfIndex;
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for (selfIndex = 0; selfIndex < selfPaths.length; selfIndex++) {
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const selfPath = selfPaths[selfIndex];
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targetIndex = targetPaths.indexOf(selfPath);
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if (targetIndex >= 0) {
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commonPath = selfPath;
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break;
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}
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}
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if (!commonPath) {
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return "before";
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}
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const targetRelationship = targetPaths[targetIndex - 1];
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const selfRelationship = selfPaths[selfIndex - 1];
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if (!targetRelationship || !selfRelationship) {
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return "before";
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}
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if (targetRelationship.listKey && targetRelationship.container === selfRelationship.container) {
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return targetRelationship.key > selfRelationship.key ? "before" : "after";
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}
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const keys = t().VISITOR_KEYS[commonPath.type];
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const targetKeyPosition = keys.indexOf(targetRelationship.key);
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const selfKeyPosition = keys.indexOf(selfRelationship.key);
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return targetKeyPosition > selfKeyPosition ? "before" : "after";
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}
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function _guessExecutionStatusRelativeToDifferentFunctions(targetFuncParent) {
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const targetFuncPath = targetFuncParent.path;
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if (!targetFuncPath.isFunctionDeclaration()) return;
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const binding = targetFuncPath.scope.getBinding(targetFuncPath.node.id.name);
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if (!binding.references) return "before";
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const referencePaths = binding.referencePaths;
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for (const path of referencePaths) {
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if (path.key !== "callee" || !path.parentPath.isCallExpression()) {
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return;
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}
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}
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let allStatus;
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for (const path of referencePaths) {
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const childOfFunction = !!path.find(path => path.node === targetFuncPath.node);
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if (childOfFunction) continue;
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const status = this._guessExecutionStatusRelativeTo(path);
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if (allStatus) {
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if (allStatus !== status) return;
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} else {
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allStatus = status;
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}
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}
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return allStatus;
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}
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function resolve(dangerous, resolved) {
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return this._resolve(dangerous, resolved) || this;
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}
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function _resolve(dangerous, resolved) {
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if (resolved && resolved.indexOf(this) >= 0) return;
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resolved = resolved || [];
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resolved.push(this);
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if (this.isVariableDeclarator()) {
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if (this.get("id").isIdentifier()) {
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return this.get("init").resolve(dangerous, resolved);
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} else {}
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} else if (this.isReferencedIdentifier()) {
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const binding = this.scope.getBinding(this.node.name);
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if (!binding) return;
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if (!binding.constant) return;
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if (binding.kind === "module") return;
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if (binding.path !== this) {
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const ret = binding.path.resolve(dangerous, resolved);
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if (this.find(parent => parent.node === ret.node)) return;
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return ret;
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}
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} else if (this.isTypeCastExpression()) {
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return this.get("expression").resolve(dangerous, resolved);
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} else if (dangerous && this.isMemberExpression()) {
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const targetKey = this.toComputedKey();
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if (!t().isLiteral(targetKey)) return;
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const targetName = targetKey.value;
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const target = this.get("object").resolve(dangerous, resolved);
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if (target.isObjectExpression()) {
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const props = target.get("properties");
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for (const prop of props) {
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if (!prop.isProperty()) continue;
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const key = prop.get("key");
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let match = prop.isnt("computed") && key.isIdentifier({
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name: targetName
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});
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match = match || key.isLiteral({
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value: targetName
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});
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if (match) return prop.get("value").resolve(dangerous, resolved);
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}
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} else if (target.isArrayExpression() && !isNaN(+targetName)) {
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const elems = target.get("elements");
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const elem = elems[targetName];
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if (elem) return elem.resolve(dangerous, resolved);
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}
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}
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}
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function isConstantExpression() {
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if (this.isIdentifier()) {
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const binding = this.scope.getBinding(this.node.name);
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if (!binding) return false;
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return binding.constant;
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}
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if (this.isLiteral()) {
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if (this.isRegExpLiteral()) {
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return false;
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}
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if (this.isTemplateLiteral()) {
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return this.get("expressions").every(expression => expression.isConstantExpression());
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}
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return true;
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}
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if (this.isUnaryExpression()) {
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if (this.get("operator").node !== "void") {
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return false;
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}
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return this.get("argument").isConstantExpression();
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}
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if (this.isBinaryExpression()) {
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return this.get("left").isConstantExpression() && this.get("right").isConstantExpression();
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}
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return false;
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}
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function isInStrictMode() {
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const start = this.isProgram() ? this : this.parentPath;
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const strictParent = start.find(path => {
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if (path.isProgram({
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sourceType: "module"
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})) return true;
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if (path.isClass()) return true;
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if (!path.isProgram() && !path.isFunction()) return false;
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if (path.isArrowFunctionExpression() && !path.get("body").isBlockStatement()) {
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return false;
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}
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let {
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node
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} = path;
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if (path.isFunction()) node = node.body;
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for (const directive of node.directives) {
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if (directive.value.value === "use strict") {
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return true;
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}
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}
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});
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return !!strictParent;
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}
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