added babel

1 files changed, 83 insertions, 0 deletions

diff --git a/node_modules/@babel/traverse/lib/scope/binding.js b/node_modules/@babel/traverse/lib/scope/binding.js
new file mode 100644
index 00000000..c40a40a4
--- /dev/null
+++ b/node_modules/@babel/traverse/lib/scope/binding.js
@@ -0,0 +1,83 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+class Binding {
+  constructor({
+    identifier,
+    scope,
+    path,
+    kind
+  }) {
+    this.identifier = void 0;
+    this.scope = void 0;
+    this.path = void 0;
+    this.kind = void 0;
+    this.constantViolations = [];
+    this.constant = true;
+    this.referencePaths = [];
+    this.referenced = false;
+    this.references = 0;
+    this.identifier = identifier;
+    this.scope = scope;
+    this.path = path;
+    this.kind = kind;
+    if ((kind === "var" || kind === "hoisted") && isDeclaredInLoop(path)) {
+      this.reassign(path);
+    }
+    this.clearValue();
+  }
+  deoptValue() {
+    this.clearValue();
+    this.hasDeoptedValue = true;
+  }
+  setValue(value) {
+    if (this.hasDeoptedValue) return;
+    this.hasValue = true;
+    this.value = value;
+  }
+  clearValue() {
+    this.hasDeoptedValue = false;
+    this.hasValue = false;
+    this.value = null;
+  }
+  reassign(path) {
+    this.constant = false;
+    if (this.constantViolations.indexOf(path) !== -1) {
+      return;
+    }
+    this.constantViolations.push(path);
+  }
+  reference(path) {
+    if (this.referencePaths.indexOf(path) !== -1) {
+      return;
+    }
+    this.referenced = true;
+    this.references++;
+    this.referencePaths.push(path);
+  }
+  dereference() {
+    this.references--;
+    this.referenced = !!this.references;
+  }
+}
+exports.default = Binding;
+function isDeclaredInLoop(path) {
+  for (let {
+    parentPath,
+    key
+  } = path; parentPath; ({
+    parentPath,
+    key
+  } = parentPath)) {
+    if (parentPath.isFunctionParent()) return false;
+    if (parentPath.isWhile() || parentPath.isForXStatement() || parentPath.isForStatement() && key === "body") {
+      return true;
+    }
+  }
+  return false;
+}
+
+//# sourceMappingURL=binding.js.map