1 files changed, 118 insertions, 0 deletions
diff --git a/tools/node_modules/babel-eslint/lib/babylon-to-espree/toAST.js b/tools/node_modules/babel-eslint/lib/babylon-to-espree/toAST.js
new file mode 100644
index 0000000000..b3da41f0cb
--- /dev/null
+++ b/tools/node_modules/babel-eslint/lib/babylon-to-espree/toAST.js
@@ -0,0 +1,118 @@
+"use strict";
+
+var t = require("@babel/types");
+var convertComments = require("./convertComments");
+
+module.exports = function(ast, traverse, code) {
+  var state = { source: code };
+
+  // Monkey patch visitor keys in order to be able to traverse the estree nodes
+  t.VISITOR_KEYS.Property = t.VISITOR_KEYS.ObjectProperty;
+  t.VISITOR_KEYS.MethodDefinition = [
+    "key",
+    "value",
+    "decorators",
+    "returnType",
+    "typeParameters",
+  ];
+
+  traverse(ast, astTransformVisitor, null, state);
+
+  delete t.VISITOR_KEYS.Property;
+  delete t.VISITOR_KEYS.MethodDefinition;
+};
+
+var astTransformVisitor = {
+  noScope: true,
+  enter(path) {
+    var node = path.node;
+
+    // private var to track original node type
+    node._babelType = node.type;
+
+    if (node.innerComments) {
+      node.trailingComments = node.innerComments;
+      delete node.innerComments;
+    }
+
+    if (node.trailingComments) {
+      convertComments(node.trailingComments);
+    }
+
+    if (node.leadingComments) {
+      convertComments(node.leadingComments);
+    }
+  },
+  exit(path) {
+    var node = path.node;
+
+    if (path.isJSXText()) {
+      node.type = "Literal";
+    }
+
+    if (
+      path.isRestElement() &&
+      path.parent &&
+      path.parent.type === "ObjectPattern"
+    ) {
+      node.type = "ExperimentalRestProperty";
+    }
+
+    if (
+      path.isSpreadElement() &&
+      path.parent &&
+      path.parent.type === "ObjectExpression"
+    ) {
+      node.type = "ExperimentalSpreadProperty";
+    }
+
+    if (path.isTypeParameter()) {
+      node.type = "Identifier";
+      node.typeAnnotation = node.bound;
+      delete node.bound;
+    }
+
+    // flow: prevent "no-undef"
+    // for "Component" in: "let x: React.Component"
+    if (path.isQualifiedTypeIdentifier()) {
+      delete node.id;
+    }
+    // for "b" in: "var a: { b: Foo }"
+    if (path.isObjectTypeProperty()) {
+      delete node.key;
+    }
+    // for "indexer" in: "var a: {[indexer: string]: number}"
+    if (path.isObjectTypeIndexer()) {
+      delete node.id;
+    }
+    // for "param" in: "var a: { func(param: Foo): Bar };"
+    if (path.isFunctionTypeParam()) {
+      delete node.name;
+    }
+
+    // modules
+
+    if (path.isImportDeclaration()) {
+      delete node.isType;
+    }
+
+    // template string range fixes
+    if (path.isTemplateLiteral()) {
+      for (var j = 0; j < node.quasis.length; j++) {
+        var q = node.quasis[j];
+        q.range[0] -= 1;
+        if (q.tail) {
+          q.range[1] += 1;
+        } else {
+          q.range[1] += 2;
+        }
+        q.loc.start.column -= 1;
+        if (q.tail) {
+          q.loc.end.column += 1;
+        } else {
+          q.loc.end.column += 2;
+        }
+      }
+    }
+  },
+};