@putout/compare - npm Package Compare versions

Comparing version 4.2.0 to 4.3.0

lib/compare.js

@@ -31,2 +31,3 @@ 'use strict';
     isEqualBody,
+    isEqualNop,
     isLinkedNode,
@@ -81,2 +82,5 @@ isTemplate,
     
+    if (isEqualNop(node, baseNode))
+        return true;
+    
     if (isPath(path) && !isEqualType(node, baseNode)) {
@@ -179,2 +183,5 @@ const {type} = baseNode;
     
+    if (isEqualNop(nodeValue, value))
+        return true;
+    
     if (isLinkedNode(value)) {
@@ -181,0 +188,0 @@ const {name} = value;

lib/is.js

@@ -5,4 +5,6 @@ 'use strict';
 const {
+    isBlockStatement,
     isIdentifier,
     isLiteral,
+    isFunction,
     isImportDefaultSpecifier,
@@ -19,2 +21,3 @@ } = require('@babel/types');
 const BODY = '__body';
+const NOP = '__nop';
 const ANY = '__';
@@ -61,2 +64,6 @@
 
+const isNop = (a) => isIdentifier(a, {
+    name: NOP,
+});
+
 const isAnyObject = (a) => isIdentifier(a, {
@@ -145,2 +152,17 @@ name: ANY_OBJECT,
 
+module.exports.isEqualNop = (node, baseNode) => {
+    if (!isNop(baseNode))
+        return false;
+    
+    if (!isFunction(node))
+        return false;
+    
+    const {body} = node;
+    
+    if (!isBlockStatement(body))
+        return false;
+    
+    return !body.body.length;
+};
+
 module.exports.isLinkedNode = (a) => {
@@ -147,0 +169,0 @@ if (isIdentifier(a) && LINKED_NODE.test(a.name))

package.json

 {
   "name": "@putout/compare",
-  "version": "4.2.0",
+  "version": "4.3.0",
   "author": "coderaiser <[e-mail]> (https://github.com/coderaiser)",
@@ -5,0 +5,0 @@ "description": "compare ast-nodes",

README.md

@@ -134,2 +134,15 @@ # putout-compare [![NPM version][NPMIMGURL]][NPMURL] [![Dependency Status][DependencyStatusIMGURL]][DependencyStatusURL]
 
+##### "__nop"
+Any `Function` with no `arguments` and empty body;
+
+```js
+compare('const a = () => {}, 'const __a = __nop);
+// returns
+true
+
+compare('const a = async () => {}, 'const a = () => __nop');
+// returns
+true
+```
+
 ## License
@@ -136,0 +149,0 @@

No alert changes

Improved metrics

Total package byte prevSize

17642

increased by4.51%

Lines of code

414

increased by5.34%

Number of lines in readme file

151

increased by9.42%

No dependency changes