1 files changed, 218 insertions, 0 deletions
diff --git a/node_modules/@babel/traverse/lib/visitors.js b/node_modules/@babel/traverse/lib/visitors.js
new file mode 100644
index 00000000..a2b9d81d
--- /dev/null
+++ b/node_modules/@babel/traverse/lib/visitors.js
@@ -0,0 +1,218 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.explode = explode;
+exports.isExplodedVisitor = isExplodedVisitor;
+exports.merge = merge;
+exports.verify = verify;
+var virtualTypes = require("./path/lib/virtual-types.js");
+var _t = require("@babel/types");
+const {
+  DEPRECATED_KEYS,
+  DEPRECATED_ALIASES,
+  FLIPPED_ALIAS_KEYS,
+  TYPES,
+  __internal__deprecationWarning: deprecationWarning
+} = _t;
+function isVirtualType(type) {
+  return type in virtualTypes;
+}
+function isExplodedVisitor(visitor) {
+  return visitor == null ? void 0 : visitor._exploded;
+}
+function explode(visitor) {
+  if (isExplodedVisitor(visitor)) return visitor;
+  visitor._exploded = true;
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    const parts = nodeType.split("|");
+    if (parts.length === 1) continue;
+    const fns = visitor[nodeType];
+    delete visitor[nodeType];
+    for (const part of parts) {
+      visitor[part] = fns;
+    }
+  }
+  verify(visitor);
+  delete visitor.__esModule;
+  ensureEntranceObjects(visitor);
+  ensureCallbackArrays(visitor);
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    if (!isVirtualType(nodeType)) continue;
+    const fns = visitor[nodeType];
+    for (const type of Object.keys(fns)) {
+      fns[type] = wrapCheck(nodeType, fns[type]);
+    }
+    delete visitor[nodeType];
+    const types = virtualTypes[nodeType];
+    if (types !== null) {
+      for (const type of types) {
+        if (visitor[type]) {
+          mergePair(visitor[type], fns);
+        } else {
+          visitor[type] = fns;
+        }
+      }
+    } else {
+      mergePair(visitor, fns);
+    }
+  }
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    let aliases = FLIPPED_ALIAS_KEYS[nodeType];
+    if (nodeType in DEPRECATED_KEYS) {
+      const deprecatedKey = DEPRECATED_KEYS[nodeType];
+      deprecationWarning(nodeType, deprecatedKey, "Visitor ");
+      aliases = [deprecatedKey];
+    } else if (nodeType in DEPRECATED_ALIASES) {
+      const deprecatedAlias = DEPRECATED_ALIASES[nodeType];
+      deprecationWarning(nodeType, deprecatedAlias, "Visitor ");
+      aliases = FLIPPED_ALIAS_KEYS[deprecatedAlias];
+    }
+    if (!aliases) continue;
+    const fns = visitor[nodeType];
+    delete visitor[nodeType];
+    for (const alias of aliases) {
+      const existing = visitor[alias];
+      if (existing) {
+        mergePair(existing, fns);
+      } else {
+        visitor[alias] = Object.assign({}, fns);
+      }
+    }
+  }
+  for (const nodeType of Object.keys(visitor)) {
+    if (shouldIgnoreKey(nodeType)) continue;
+    ensureCallbackArrays(visitor[nodeType]);
+  }
+  return visitor;
+}
+function verify(visitor) {
+  if (visitor._verified) return;
+  if (typeof visitor === "function") {
+    throw new Error("You passed `traverse()` a function when it expected a visitor object, " + "are you sure you didn't mean `{ enter: Function }`?");
+  }
+  for (const nodeType of Object.keys(visitor)) {
+    if (nodeType === "enter" || nodeType === "exit") {
+      validateVisitorMethods(nodeType, visitor[nodeType]);
+    }
+    if (shouldIgnoreKey(nodeType)) continue;
+    if (TYPES.indexOf(nodeType) < 0) {
+      throw new Error(`You gave us a visitor for the node type ${nodeType} but it's not a valid type`);
+    }
+    const visitors = visitor[nodeType];
+    if (typeof visitors === "object") {
+      for (const visitorKey of Object.keys(visitors)) {
+        if (visitorKey === "enter" || visitorKey === "exit") {
+          validateVisitorMethods(`${nodeType}.${visitorKey}`, visitors[visitorKey]);
+        } else {
+          throw new Error("You passed `traverse()` a visitor object with the property " + `${nodeType} that has the invalid property ${visitorKey}`);
+        }
+      }
+    }
+  }
+  visitor._verified = true;
+}
+function validateVisitorMethods(path, val) {
+  const fns = [].concat(val);
+  for (const fn of fns) {
+    if (typeof fn !== "function") {
+      throw new TypeError(`Non-function found defined in ${path} with type ${typeof fn}`);
+    }
+  }
+}
+function merge(visitors, states = [], wrapper) {
+  const mergedVisitor = {};
+  for (let i = 0; i < visitors.length; i++) {
+    const visitor = explode(visitors[i]);
+    const state = states[i];
+    let topVisitor = visitor;
+    if (state || wrapper) {
+      topVisitor = wrapWithStateOrWrapper(topVisitor, state, wrapper);
+    }
+    mergePair(mergedVisitor, topVisitor);
+    for (const key of Object.keys(visitor)) {
+      if (shouldIgnoreKey(key)) continue;
+      let typeVisitor = visitor[key];
+      if (state || wrapper) {
+        typeVisitor = wrapWithStateOrWrapper(typeVisitor, state, wrapper);
+      }
+      const nodeVisitor = mergedVisitor[key] || (mergedVisitor[key] = {});
+      mergePair(nodeVisitor, typeVisitor);
+    }
+  }
+  ;
+  return mergedVisitor;
+}
+function wrapWithStateOrWrapper(oldVisitor, state, wrapper) {
+  const newVisitor = {};
+  for (const phase of ["enter", "exit"]) {
+    let fns = oldVisitor[phase];
+    if (!Array.isArray(fns)) continue;
+    fns = fns.map(function (fn) {
+      let newFn = fn;
+      if (state) {
+        newFn = function (path) {
+          fn.call(state, path, state);
+        };
+      }
+      if (wrapper) {
+        newFn = wrapper(state == null ? void 0 : state.key, phase, newFn);
+      }
+      if (newFn !== fn) {
+        newFn.toString = () => fn.toString();
+      }
+      return newFn;
+    });
+    newVisitor[phase] = fns;
+  }
+  return newVisitor;
+}
+function ensureEntranceObjects(obj) {
+  for (const key of Object.keys(obj)) {
+    if (shouldIgnoreKey(key)) continue;
+    const fns = obj[key];
+    if (typeof fns === "function") {
+      obj[key] = {
+        enter: fns
+      };
+    }
+  }
+}
+function ensureCallbackArrays(obj) {
+  if (obj.enter && !Array.isArray(obj.enter)) obj.enter = [obj.enter];
+  if (obj.exit && !Array.isArray(obj.exit)) obj.exit = [obj.exit];
+}
+function wrapCheck(nodeType, fn) {
+  const newFn = function (path) {
+    if (path[`is${nodeType}`]()) {
+      return fn.apply(this, arguments);
+    }
+  };
+  newFn.toString = () => fn.toString();
+  return newFn;
+}
+function shouldIgnoreKey(key) {
+  if (key[0] === "_") return true;
+  if (key === "enter" || key === "exit" || key === "shouldSkip") return true;
+  if (key === "denylist" || key === "noScope" || key === "skipKeys") {
+    return true;
+  }
+  {
+    if (key === "blacklist") {
+      return true;
+    }
+  }
+  return false;
+}
+function mergePair(dest, src) {
+  for (const phase of ["enter", "exit"]) {
+    if (!src[phase]) continue;
+    dest[phase] = [].concat(dest[phase] || [], src[phase]);
+  }
+}
+
+//# sourceMappingURL=visitors.js.map