css-tree - npm Package Compare versions

Comparing version 1.0.0-alpha.34 to 1.0.0-alpha.35

CHANGELOG.md

@@ -0,1 +1,7 @@
+## 1.0.0-alpha.35 (October 7, 2019)
+
+- Walker
+    - Changed implementation to avoid runtime compilation due to CSP issues (see #91, #109)
+    - Added `find()`, `findLast()` and `findAll()` methods (e.g. `csstree.find(ast, node => node.type === 'ClassSelector')`)
+
 ## 1.0.0-alpha.34 (July 27, 2019)
@@ -2,0 +8,0 @@

lib/syntax/create.js

@@ -51,2 +51,6 @@ var List = require('../common/List');
 
+        find: walk.find,
+        findLast: walk.findLast,
+        findAll: walk.findAll,
+
         clone: clone,
@@ -53,0 +57,0 @@ fromPlainObject: convert.fromPlainObject,

lib/walker/create.js

@@ -81,32 +81,39 @@ var hasOwnProperty = Object.prototype.hasOwnProperty;
 function createTypeIterator(config, reverse) {
-    var fields = reverse ? config.fields.slice().reverse() : config.fields;
-    var body = fields.map(function(field) {
-        var ref = 'node.' + field.name;
-        var line;
+    var fields = config.fields.slice();
+    var contextName = config.context;
+    var useContext = typeof contextName === 'string';
 
-        if (field.type === 'list') {
-            line = reverse
-                ? ref + '.forEachRight(walk);'
-                : ref + '.forEach(walk);';
-        } else {
-            line = 'walk(' + ref + ');';
-        }
+    if (reverse) {
+        fields.reverse();
+    }
 
-        if (field.nullable) {
-            line = 'if (' + ref + ') {\n    ' + line + '}';
+    return function(node, context, walk) {
+        var prevContextValue;
+
+        if (useContext) {
+            prevContextValue = context[contextName];
+            context[contextName] = node;
         }
 
-        return line;
-    });
+        for (var i = 0; i < fields.length; i++) {
+            var field = fields[i];
+            var ref = node[field.name];
 
-    if (config.context) {
-        body = [].concat(
-            'var old = context.' + config.context + ';',
-            'context.' + config.context + ' = node;',
-            body,
-            'context.' + config.context + ' = old;'
-        );
-    }
+            if (!field.nullable || ref) {
+                if (field.type === 'list') {
+                    if (reverse) {
+                        ref.forEachRight(walk);
+                    } else {
+                        ref.forEach(walk);
+                    }
+                } else {
+                    walk(ref);
+                }
+            }
+        }
 
-    return new Function('node', 'context', 'walk', body.join('\n'));
+        if (useContext) {
+            context[contextName] = prevContextValue;
+        }
+    };
 }
@@ -152,3 +159,3 @@
 
-    return function walk(root, options) {
+    var walk = function(root, options) {
         function walkNode(node, item, list) {
@@ -216,2 +223,43 @@ enter.call(context, node, item, list);
     };
+
+    walk.find = function(ast, fn) {
+        var found = null;
+
+        walk(ast, function(node, item, list) {
+            if (found === null && fn.call(this, node, item, list)) {
+                found = node;
+            }
+        });
+
+        return found;
+    };
+
+    walk.findLast = function(ast, fn) {
+        var found = null;
+
+        walk(ast, {
+            reverse: true,
+            enter: function(node, item, list) {
+                if (found === null && fn.call(this, node, item, list)) {
+                    found = node;
+                }
+            }
+        });
+
+        return found;
+    };
+
+    walk.findAll = function(ast, fn) {
+        var found = [];
+
+        walk(ast, function(node, item, list) {
+            if (fn.call(this, node, item, list)) {
+                found.push(node);
+            }
+        });
+
+        return found;
+    };
+
+    return walk;
 };

package.json

 {
   "name": "css-tree",
-  "version": "1.0.0-alpha.34",
+  "version": "1.0.0-alpha.35",
   "description": "CSSTree is a tool set to work with CSS, including fast detailed parser (string->AST), walker (AST traversal), generator (AST->string) and lexer (validation and matching) based on knowledge of spec and browser implementations",
+  "author": "Roman Dvornov <[e-mail]> (https://github.com/lahmatiy)",
+  "license": "MIT",
+  "repository": "csstree/csstree",
   "keywords": [
@@ -17,16 +20,2 @@ "css",
   ],
-  "homepage": "https://github.com/csstree/csstree",
-  "author": "Roman Dvornov <[e-mail]> (https://github.com/lahmatiy)",
-  "maintainers": [
-    {
-      "name": "Roman Dvornov",
-      "email": "[e-mail]",
-      "github-username": "lahmatiy"
-    }
-  ],
-  "license": "MIT",
-  "repository": "csstree/csstree",
-  "bugs": {
-    "url": "https://github.com/csstree/csstree/issues"
-  },
   "main": "./lib/index",
@@ -63,3 +52,3 @@ "browser": {
     "coverage": "istanbul cover _mocha -- -R min",
-    "prepublish": "npm run build",
+    "prepublishOnly": "npm run build",
     "travis": "npm run lint-and-test && npm run coveralls",
@@ -88,8 +77,5 @@ "coveralls": "istanbul cover _mocha --report lcovonly -- -R min && cat ./coverage/lcov.info | coveralls",
     "data",
-    "dist/csstree.js",
-    "lib",
-    "CHANGELOG.md",
-    "LICENSE",
-    "README.md"
+    "dist",
+    "lib"
   ]
 }

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