@babel/traverse - npm Package Compare versions

Comparing version 7.0.0-beta.4 to 7.0.0-beta.5

lib/path/introspection.js

@@ -21,2 +21,3 @@ "use strict";
 exports._resolve = _resolve;
+exports.isConstantExpression = isConstantExpression;
 exports.is = void 0;
@@ -321,2 +322,42 @@
   }
+}
+
+function isConstantExpression() {
+  if (this.isIdentifier()) {
+    var binding = this.scope.getBinding(this.node.name);
+
+    if (!binding) {
+      return false;
+    }
+
+    return binding.constant && binding.path.get("init").isConstantExpression();
+  }
+
+  if (this.isLiteral()) {
+    if (this.isRegExpLiteral()) {
+      return false;
+    }
+
+    if (this.isTemplateLiteral()) {
+      return this.get("expressions").every(function (expression) {
+        return expression.isConstantExpression();
+      });
+    }
+
+    return true;
+  }
+
+  if (this.isUnaryExpression()) {
+    if (this.get("operator").node !== "void") {
+      return false;
+    }
+
+    return this.get("argument").isConstantExpression();
+  }
+
+  if (this.isBinaryExpression()) {
+    return this.get("left").isConstantExpression() && this.get("right").isConstantExpression();
+  }
+
+  return false;
 }

package.json

 {
   "name": "@babel/traverse",
-  "version": "7.0.0-beta.4",
+  "version": "7.0.0-beta.5",
   "description": "The Babel Traverse module maintains the overall tree state, and is responsible for replacing, removing, and adding nodes",
@@ -11,5 +11,5 @@ "author": "Sebastian McKenzie <[e-mail]>",
   "dependencies": {
-    "@babel/code-frame": "7.0.0-beta.4",
-    "@babel/helper-function-name": "7.0.0-beta.4",
-    "@babel/types": "7.0.0-beta.4",
+    "@babel/code-frame": "7.0.0-beta.5",
+    "@babel/helper-function-name": "7.0.0-beta.5",
+    "@babel/types": "7.0.0-beta.5",
     "babylon": "7.0.0-beta.30",
@@ -22,5 +22,5 @@ "debug": "^3.0.1",
   "devDependencies": {
-    "@babel/generator": "7.0.0-beta.4",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.4"
+    "@babel/generator": "7.0.0-beta.5",
+    "@babel/helper-plugin-test-runner": "7.0.0-beta.5"
   }
 }

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Improved metrics

Total package byte prevSize

152609

increased by0.6%

Lines of code

4346

increased by0.72%

Dependency changes

• + Added@babel/code-frame@7.0.0-beta.5(transitive)

• + Added@babel/helper-function-name@7.0.0-beta.5(transitive)

• + Added@babel/helper-get-function-arity@7.0.0-beta.5(transitive)

• + Added@babel/template@7.0.0-beta.5(transitive)

• + Added@babel/types@7.0.0-beta.5(transitive)

• - Removed@babel/code-frame@7.0.0-beta.4(transitive)

• - Removed@babel/helper-function-name@7.0.0-beta.4(transitive)

• - Removed@babel/helper-get-function-arity@7.0.0-beta.4(transitive)

• - Removed@babel/template@7.0.0-beta.4(transitive)

• - Removed@babel/types@7.0.0-beta.4(transitive)

• Updated@babel/code-frame@7.0.0-beta.5

• Updated@babel/helper-function-name@7.0.0-beta.5

• Updated@babel/types@7.0.0-beta.5