@babel/plugin-transform-parameters - npm Package Compare versions

Comparing version 7.18.6 to 7.18.8

lib/params.js

@@ -10,2 +10,4 @@ "use strict";
 
+var _shadowUtils = require("./shadow-utils");
+
 const buildDefaultParam = _core.template.statement(`
@@ -33,21 +35,2 @@ let VARIABLE_NAME =
 
-const iifeVisitor = {
-  "ReferencedIdentifier|BindingIdentifier"(path, state) {
-    const {
-      scope,
-      node
-    } = path;
-    const {
-      name
-    } = node;
-
-    if (name === "eval" || scope.getBinding(name) === state.scope.parent.getBinding(name) && state.scope.hasOwnBinding(name)) {
-      state.needsOuterBinding = true;
-      path.stop();
-    }
-  },
-
-  "TypeAnnotation|TSTypeAnnotation|TypeParameterDeclaration|TSTypeParameterDeclaration": path => path.skip()
-};
-
 function convertFunctionParams(path, ignoreFunctionLength, shouldTransformParam, replaceRestElement) {
@@ -61,7 +44,2 @@ const params = path.get("params");
   } = path;
-  const state = {
-    stop: false,
-    needsOuterBinding: false,
-    scope
-  };
   const body = [];
@@ -71,39 +49,13 @@ const shadowedParams = new Set();
   for (const param of params) {
-    for (const name of Object.keys(param.getBindingIdentifiers())) {
-      var _scope$bindings$name;
+    (0, _shadowUtils.collectShadowedParamsNames)(param, scope, shadowedParams);
+  }
 
-      const constantViolations = (_scope$bindings$name = scope.bindings[name]) == null ? void 0 : _scope$bindings$name.constantViolations;
+  const state = {
+    needsOuterBinding: false,
+    scope
+  };
 
-      if (constantViolations) {
-        for (const redeclarator of constantViolations) {
-          const node = redeclarator.node;
-
-          switch (node.type) {
-            case "VariableDeclarator":
-              {
-                if (node.init === null) {
-                  const declaration = redeclarator.parentPath;
-
-                  if (!declaration.parentPath.isFor() || declaration.parentPath.get("body") === declaration) {
-                    redeclarator.remove();
-                    break;
-                  }
-                }
-
-                shadowedParams.add(name);
-                break;
-              }
-
-            case "FunctionDeclaration":
-              shadowedParams.add(name);
-              break;
-          }
-        }
-      }
-    }
-  }
-
   if (shadowedParams.size === 0) {
     for (const param of params) {
-      if (!param.isIdentifier()) param.traverse(iifeVisitor, state);
+      if (!param.isIdentifier()) param.traverse(_shadowUtils.iifeVisitor, state);
       if (state.needsOuterBinding) break;
@@ -191,3 +143,3 @@ }
   if (state.needsOuterBinding || shadowedParams.size > 0) {
-    body.push(buildScopeIIFE(shadowedParams, path.get("body").node));
+    body.push((0, _shadowUtils.buildScopeIIFE)(shadowedParams, path.node.body));
     path.set("body", _core.types.blockStatement(body));
@@ -205,14 +157,2 @@ const bodyPath = path.get("body.body");
   return true;
-}
-
-function buildScopeIIFE(shadowedParams, body) {
-  const args = [];
-  const params = [];
-
-  for (const name of shadowedParams) {
-    args.push(_core.types.identifier(name));
-    params.push(_core.types.identifier(name));
-  }
-
-  return _core.types.returnStatement(_core.types.callExpression(_core.types.arrowFunctionExpression(params, body), args));
 }

lib/rest.js

@@ -10,2 +10,4 @@ "use strict";
 
+var _shadowUtils = require("./shadow-utils");
+
 const buildRest = _core.template.statement(`
@@ -219,4 +221,27 @@ for (var LEN = ARGUMENTS.length,
   if (!hasRest(node)) return false;
-  let rest = node.params.pop().argument;
+  const restPath = path.get(`params.${node.params.length - 1}.argument`);
 
+  if (!restPath.isIdentifier()) {
+    const shadowedParams = new Set();
+    (0, _shadowUtils.collectShadowedParamsNames)(restPath, path.scope, shadowedParams);
+    let needsIIFE = shadowedParams.size > 0;
+
+    if (!needsIIFE) {
+      const state = {
+        needsOuterBinding: false,
+        scope
+      };
+      restPath.traverse(_shadowUtils.iifeVisitor, state);
+      needsIIFE = state.needsOuterBinding;
+    }
+
+    if (needsIIFE) {
+      path.ensureBlock();
+      path.set("body", _core.types.blockStatement([(0, _shadowUtils.buildScopeIIFE)(shadowedParams, path.node.body)]));
+    }
+  }
+
+  let rest = restPath.node;
+  node.params.pop();
+
   if (_core.types.isPattern(rest)) {
@@ -223,0 +248,0 @@ const pattern = rest;

package.json

 {
   "name": "@babel/plugin-transform-parameters",
-  "version": "7.18.6",
+  "version": "7.18.8",
   "description": "Compile ES2015 default and rest parameters to ES5",
@@ -5,0 +5,0 @@ "repository": {

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Improved metrics

Total package byte prevSize

19438

increased by6.48%

Number of package files

7

increased by16.67%

Lines of code

505

increased by6.54%

No dependency changes