babel-helper-evaluate-path - npm Package Compare versions

Comparing version 0.5.0-alpha.5f601890 to 0.5.0-alpha.6889f45d

lib/index.js

@@ -14,3 +14,3 @@ "use strict";
 } = {}) {
-  if (!tdz) {
+  if (!tdz && !path.isReferencedIdentifier()) {
     return baseEvaluate(path);
@@ -77,3 +77,30 @@ }
   if (!binding) {
-    return deopt(path);
+    const name = node.name;
+
+    if (!name) {
+      return deopt(path);
+    }
+
+    switch (name) {
+      case "undefined":
+        return {
+          confident: true,
+          value: undefined
+        };
+
+      case "NaN":
+        return {
+          confident: true,
+          value: NaN
+        };
+
+      case "Infinity":
+        return {
+          confident: true,
+          value: Infinity
+        };
+
+      default:
+        return deopt(path);
+    }
   }
@@ -121,3 +148,15 @@
     const declaration = binding.path.parentPath;
+    /**
+     * Handle when binding is created inside a parent block and
+     * the corresponding parent is removed by other plugins
+     * if (false) { var a } -> var a
+     */
 
+    if (declaration.parentPath && declaration.parentPath.removed) {
+      return {
+        confident: true,
+        value: void 0
+      };
+    }
+
     if (declaration.parentPath.isIfStatement() || declaration.parentPath.isLoop() || declaration.parentPath.isSwitchCase()) {
@@ -129,11 +168,13 @@ return {
 
+    const fnParent = (binding.path.scope.getFunctionParent() || binding.path.scope.getProgramParent()).path;
     let blockParent = binding.path.scope.getBlockParent().path;
-    const fnParent = binding.path.getFunctionParent();
 
-    if (blockParent === fnParent) {
-      if (!fnParent.isProgram()) blockParent = blockParent.get("body");
+    if (blockParent === fnParent && !fnParent.isProgram()) {
+      blockParent = blockParent.get("body");
     } // detect Usage Outside Init Scope
 
 
-    if (!blockParent.get("body").some(stmt => stmt.isAncestor(refPath))) {
+    const blockBody = blockParent.get("body");
+
+    if (Array.isArray(blockBody) && !blockBody.some(stmt => stmt.isAncestor(refPath))) {
       return {
@@ -159,6 +200,2 @@ shouldDeopt: true
       }
-
-      return {
-        shouldDeopt: true
-      };
     }
@@ -170,3 +207,3 @@ } else if (binding.kind === "let" || binding.kind === "const") {
 
-    if (declaration.parentPath.isIfStatement() || declaration.parentPath.isLoop() || declaration.parentPath.isSwitchCase()) {
+    if (declaration.parentPath && (declaration.parentPath.isIfStatement() || declaration.parentPath.isLoop() || declaration.parentPath.isSwitchCase())) {
       return {
@@ -184,3 +221,8 @@ shouldDeopt: true
 
-    const stmts = scopePath.get("body");
+    let stmts = scopePath.get("body");
+
+    if (!Array.isArray(stmts)) {
+      stmts = [stmts];
+    }
+
     const compareResult = compareBindingAndReference({
@@ -187,0 +229,0 @@ binding,

package.json

 {
   "name": "babel-helper-evaluate-path",
-  "version": "0.5.0-alpha.5f601890",
+  "version": "0.5.0-alpha.6889f45d",
   "description": "path.evaluate wrapped in a try catch",
@@ -5,0 +5,0 @@ "keywords": [

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Improved metrics

Total package byte prevSize

9478

increased by11.02%

Lines of code

261

increased by14.98%

No dependency changes