1 files changed, 395 insertions, 0 deletions
diff --git a/node_modules/@babel/traverse/lib/path/introspection.js b/node_modules/@babel/traverse/lib/path/introspection.js
new file mode 100644
index 0000000..3f0171f
--- /dev/null
+++ b/node_modules/@babel/traverse/lib/path/introspection.js
@@ -0,0 +1,395 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports._guessExecutionStatusRelativeTo = _guessExecutionStatusRelativeTo;
+exports._resolve = _resolve;
+exports.canHaveVariableDeclarationOrExpression = canHaveVariableDeclarationOrExpression;
+exports.canSwapBetweenExpressionAndStatement = canSwapBetweenExpressionAndStatement;
+exports.getSource = getSource;
+exports.isCompletionRecord = isCompletionRecord;
+exports.isConstantExpression = isConstantExpression;
+exports.isInStrictMode = isInStrictMode;
+exports.isNodeType = isNodeType;
+exports.isStatementOrBlock = isStatementOrBlock;
+exports.isStatic = isStatic;
+exports.matchesPattern = matchesPattern;
+exports.referencesImport = referencesImport;
+exports.resolve = resolve;
+exports.willIMaybeExecuteBefore = willIMaybeExecuteBefore;
+var _t = require("@babel/types");
+const {
+  STATEMENT_OR_BLOCK_KEYS,
+  VISITOR_KEYS,
+  isBlockStatement,
+  isExpression,
+  isIdentifier,
+  isLiteral,
+  isStringLiteral,
+  isType,
+  matchesPattern: _matchesPattern
+} = _t;
+function matchesPattern(pattern, allowPartial) {
+  return _matchesPattern(this.node, pattern, allowPartial);
+}
+exports.has = function has(key) {
+  var _this$node;
+  const val = (_this$node = this.node) == null ? void 0 : _this$node[key];
+  if (val && Array.isArray(val)) {
+    return !!val.length;
+  } else {
+    return !!val;
+  }
+};
+function isStatic() {
+  return this.scope.isStatic(this.node);
+}
+exports.is = exports.has;
+exports.isnt = function isnt(key) {
+  return !this.has(key);
+};
+exports.equals = function equals(key, value) {
+  return this.node[key] === value;
+};
+function isNodeType(type) {
+  return isType(this.type, type);
+}
+function canHaveVariableDeclarationOrExpression() {
+  return (this.key === "init" || this.key === "left") && this.parentPath.isFor();
+}
+function canSwapBetweenExpressionAndStatement(replacement) {
+  if (this.key !== "body" || !this.parentPath.isArrowFunctionExpression()) {
+    return false;
+  }
+  if (this.isExpression()) {
+    return isBlockStatement(replacement);
+  } else if (this.isBlockStatement()) {
+    return isExpression(replacement);
+  }
+  return false;
+}
+function isCompletionRecord(allowInsideFunction) {
+  let path = this;
+  let first = true;
+  do {
+    const {
+      type,
+      container
+    } = path;
+    if (!first && (path.isFunction() || type === "StaticBlock")) {
+      return !!allowInsideFunction;
+    }
+    first = false;
+    if (Array.isArray(container) && path.key !== container.length - 1) {
+      return false;
+    }
+  } while ((path = path.parentPath) && !path.isProgram() && !path.isDoExpression());
+  return true;
+}
+function isStatementOrBlock() {
+  if (this.parentPath.isLabeledStatement() || isBlockStatement(this.container)) {
+    return false;
+  } else {
+    return STATEMENT_OR_BLOCK_KEYS.includes(this.key);
+  }
+}
+function referencesImport(moduleSource, importName) {
+  if (!this.isReferencedIdentifier()) {
+    if (this.isJSXMemberExpression() && this.node.property.name === importName || (this.isMemberExpression() || this.isOptionalMemberExpression()) && (this.node.computed ? isStringLiteral(this.node.property, {
+      value: importName
+    }) : this.node.property.name === importName)) {
+      const object = this.get("object");
+      return object.isReferencedIdentifier() && object.referencesImport(moduleSource, "*");
+    }
+    return false;
+  }
+  const binding = this.scope.getBinding(this.node.name);
+  if ((binding == null ? void 0 : binding.kind) !== "module") return false;
+  const path = binding.path;
+  const parent = path.parentPath;
+  if (!parent.isImportDeclaration()) return false;
+  if (parent.node.source.value === moduleSource) {
+    if (!importName) return true;
+  } else {
+    return false;
+  }
+  if (path.isImportDefaultSpecifier() && importName === "default") {
+    return true;
+  }
+  if (path.isImportNamespaceSpecifier() && importName === "*") {
+    return true;
+  }
+  if (path.isImportSpecifier() && isIdentifier(path.node.imported, {
+    name: importName
+  })) {
+    return true;
+  }
+  return false;
+}
+function getSource() {
+  const node = this.node;
+  if (node.end) {
+    const code = this.hub.getCode();
+    if (code) return code.slice(node.start, node.end);
+  }
+  return "";
+}
+function willIMaybeExecuteBefore(target) {
+  return this._guessExecutionStatusRelativeTo(target) !== "after";
+}
+function getOuterFunction(path) {
+  return path.isProgram() ? path : (path.parentPath.scope.getFunctionParent() || path.parentPath.scope.getProgramParent()).path;
+}
+function isExecutionUncertain(type, key) {
+  switch (type) {
+    case "LogicalExpression":
+      return key === "right";
+    case "ConditionalExpression":
+    case "IfStatement":
+      return key === "consequent" || key === "alternate";
+    case "WhileStatement":
+    case "DoWhileStatement":
+    case "ForInStatement":
+    case "ForOfStatement":
+      return key === "body";
+    case "ForStatement":
+      return key === "body" || key === "update";
+    case "SwitchStatement":
+      return key === "cases";
+    case "TryStatement":
+      return key === "handler";
+    case "AssignmentPattern":
+      return key === "right";
+    case "OptionalMemberExpression":
+      return key === "property";
+    case "OptionalCallExpression":
+      return key === "arguments";
+    default:
+      return false;
+  }
+}
+function isExecutionUncertainInList(paths, maxIndex) {
+  for (let i = 0; i < maxIndex; i++) {
+    const path = paths[i];
+    if (isExecutionUncertain(path.parent.type, path.parentKey)) {
+      return true;
+    }
+  }
+  return false;
+}
+const SYMBOL_CHECKING = Symbol();
+function _guessExecutionStatusRelativeTo(target) {
+  return _guessExecutionStatusRelativeToCached(this, target, new Map());
+}
+function _guessExecutionStatusRelativeToCached(base, target, cache) {
+  const funcParent = {
+    this: getOuterFunction(base),
+    target: getOuterFunction(target)
+  };
+  if (funcParent.target.node !== funcParent.this.node) {
+    return _guessExecutionStatusRelativeToDifferentFunctionsCached(base, funcParent.target, cache);
+  }
+  const paths = {
+    target: target.getAncestry(),
+    this: base.getAncestry()
+  };
+  if (paths.target.includes(base)) return "after";
+  if (paths.this.includes(target)) return "before";
+  let commonPath;
+  const commonIndex = {
+    target: 0,
+    this: 0
+  };
+  while (!commonPath && commonIndex.this < paths.this.length) {
+    const path = paths.this[commonIndex.this];
+    commonIndex.target = paths.target.indexOf(path);
+    if (commonIndex.target >= 0) {
+      commonPath = path;
+    } else {
+      commonIndex.this++;
+    }
+  }
+  if (!commonPath) {
+    throw new Error("Internal Babel error - The two compared nodes" + " don't appear to belong to the same program.");
+  }
+  if (isExecutionUncertainInList(paths.this, commonIndex.this - 1) || isExecutionUncertainInList(paths.target, commonIndex.target - 1)) {
+    return "unknown";
+  }
+  const divergence = {
+    this: paths.this[commonIndex.this - 1],
+    target: paths.target[commonIndex.target - 1]
+  };
+  if (divergence.target.listKey && divergence.this.listKey && divergence.target.container === divergence.this.container) {
+    return divergence.target.key > divergence.this.key ? "before" : "after";
+  }
+  const keys = VISITOR_KEYS[commonPath.type];
+  const keyPosition = {
+    this: keys.indexOf(divergence.this.parentKey),
+    target: keys.indexOf(divergence.target.parentKey)
+  };
+  return keyPosition.target > keyPosition.this ? "before" : "after";
+}
+function _guessExecutionStatusRelativeToDifferentFunctionsInternal(base, target, cache) {
+  if (!target.isFunctionDeclaration()) {
+    if (_guessExecutionStatusRelativeToCached(base, target, cache) === "before") {
+      return "before";
+    }
+    return "unknown";
+  } else if (target.parentPath.isExportDeclaration()) {
+    return "unknown";
+  }
+  const binding = target.scope.getBinding(target.node.id.name);
+  if (!binding.references) return "before";
+  const referencePaths = binding.referencePaths;
+  let allStatus;
+  for (const path of referencePaths) {
+    const childOfFunction = !!path.find(path => path.node === target.node);
+    if (childOfFunction) continue;
+    if (path.key !== "callee" || !path.parentPath.isCallExpression()) {
+      return "unknown";
+    }
+    const status = _guessExecutionStatusRelativeToCached(base, path, cache);
+    if (allStatus && allStatus !== status) {
+      return "unknown";
+    } else {
+      allStatus = status;
+    }
+  }
+  return allStatus;
+}
+function _guessExecutionStatusRelativeToDifferentFunctionsCached(base, target, cache) {
+  let nodeMap = cache.get(base.node);
+  let cached;
+  if (!nodeMap) {
+    cache.set(base.node, nodeMap = new Map());
+  } else if (cached = nodeMap.get(target.node)) {
+    if (cached === SYMBOL_CHECKING) {
+      return "unknown";
+    }
+    return cached;
+  }
+  nodeMap.set(target.node, SYMBOL_CHECKING);
+  const result = _guessExecutionStatusRelativeToDifferentFunctionsInternal(base, target, cache);
+  nodeMap.set(target.node, result);
+  return result;
+}
+function resolve(dangerous, resolved) {
+  return _resolve.call(this, dangerous, resolved) || this;
+}
+function _resolve(dangerous, resolved) {
+  var _resolved;
+  if ((_resolved = resolved) != null && _resolved.includes(this)) return;
+  resolved = resolved || [];
+  resolved.push(this);
+  if (this.isVariableDeclarator()) {
+    if (this.get("id").isIdentifier()) {
+      return this.get("init").resolve(dangerous, resolved);
+    } else {}
+  } else if (this.isReferencedIdentifier()) {
+    const binding = this.scope.getBinding(this.node.name);
+    if (!binding) return;
+    if (!binding.constant) return;
+    if (binding.kind === "module") return;
+    if (binding.path !== this) {
+      const ret = binding.path.resolve(dangerous, resolved);
+      if (this.find(parent => parent.node === ret.node)) return;
+      return ret;
+    }
+  } else if (this.isTypeCastExpression()) {
+    return this.get("expression").resolve(dangerous, resolved);
+  } else if (dangerous && this.isMemberExpression()) {
+    const targetKey = this.toComputedKey();
+    if (!isLiteral(targetKey)) return;
+    const targetName = targetKey.value;
+    const target = this.get("object").resolve(dangerous, resolved);
+    if (target.isObjectExpression()) {
+      const props = target.get("properties");
+      for (const prop of props) {
+        if (!prop.isProperty()) continue;
+        const key = prop.get("key");
+        let match = prop.isnt("computed") && key.isIdentifier({
+          name: targetName
+        });
+        match = match || key.isLiteral({
+          value: targetName
+        });
+        if (match) return prop.get("value").resolve(dangerous, resolved);
+      }
+    } else if (target.isArrayExpression() && !isNaN(+targetName)) {
+      const elems = target.get("elements");
+      const elem = elems[targetName];
+      if (elem) return elem.resolve(dangerous, resolved);
+    }
+  }
+}
+function isConstantExpression() {
+  if (this.isIdentifier()) {
+    const binding = this.scope.getBinding(this.node.name);
+    if (!binding) return false;
+    return binding.constant;
+  }
+  if (this.isLiteral()) {
+    if (this.isRegExpLiteral()) {
+      return false;
+    }
+    if (this.isTemplateLiteral()) {
+      return this.get("expressions").every(expression => expression.isConstantExpression());
+    }
+    return true;
+  }
+  if (this.isUnaryExpression()) {
+    if (this.node.operator !== "void") {
+      return false;
+    }
+    return this.get("argument").isConstantExpression();
+  }
+  if (this.isBinaryExpression()) {
+    const {
+      operator
+    } = this.node;
+    return operator !== "in" && operator !== "instanceof" && this.get("left").isConstantExpression() && this.get("right").isConstantExpression();
+  }
+  if (this.isMemberExpression()) {
+    return !this.node.computed && this.get("object").isIdentifier({
+      name: "Symbol"
+    }) && !this.scope.hasBinding("Symbol", {
+      noGlobals: true
+    });
+  }
+  if (this.isCallExpression()) {
+    return this.node.arguments.length === 1 && this.get("callee").matchesPattern("Symbol.for") && !this.scope.hasBinding("Symbol", {
+      noGlobals: true
+    }) && this.get("arguments")[0].isStringLiteral();
+  }
+  return false;
+}
+function isInStrictMode() {
+  const start = this.isProgram() ? this : this.parentPath;
+  const strictParent = start.find(path => {
+    if (path.isProgram({
+      sourceType: "module"
+    })) return true;
+    if (path.isClass()) return true;
+    if (path.isArrowFunctionExpression() && !path.get("body").isBlockStatement()) {
+      return false;
+    }
+    let body;
+    if (path.isFunction()) {
+      body = path.node.body;
+    } else if (path.isProgram()) {
+      body = path.node;
+    } else {
+      return false;
+    }
+    for (const directive of body.directives) {
+      if (directive.value.value === "use strict") {
+        return true;
+      }
+    }
+    return false;
+  });
+  return !!strictParent;
+}
+
+//# sourceMappingURL=introspection.js.map