postcss - npm Package Compare versions

Comparing version 8.1.14 to 8.2.0

CHANGELOG.md

 # Change Log
 This project adheres to [Semantic Versioning](https://semver.org/).
 
+## 8.2 “Prince Orobas”
+* Add `Node#toJSON()` and `postcss.fromJSON()` (by Niklas Mischkulnig).
+
 ## 8.1.14
@@ -5,0 +8,0 @@ * Fixed parser performance regression.

lib/input.js

@@ -11,2 +11,4 @@ 'use strict'
 
+let fromOffsetCache = Symbol('fromOffset cache')
+
 class Input {
@@ -53,38 +55,41 @@ constructor (css, opts = {}) {
   fromOffset (offset) {
-    let lines = this.css.split('\n')
-    let lineToIndex = new Array(lines.length)
-    let prevIndex = 0
+    let lastLine, lineToIndex
+    if (!this[fromOffsetCache]) {
+      let lines = this.css.split('\n')
+      lineToIndex = new Array(lines.length)
+      let prevIndex = 0
 
-    for (let i = 0, l = lines.length; i < l; i++) {
-      lineToIndex[i] = prevIndex
-      prevIndex += lines[i].length + 1
+      for (let i = 0, l = lines.length; i < l; i++) {
+        lineToIndex[i] = prevIndex
+        prevIndex += lines[i].length + 1
+      }
+
+      this[fromOffsetCache] = lineToIndex
+    } else {
+      lineToIndex = this[fromOffsetCache]
     }
+    lastLine = lineToIndex[lineToIndex.length - 1]
 
-    let lastLine = lineToIndex[lineToIndex.length - 1]
-
-    this.fromOffset = index => {
-      let min = 0
-      if (index >= lastLine) {
-        min = lineToIndex.length - 1
-      } else {
-        let max = lineToIndex.length - 2
-        let mid
-        while (min < max) {
-          mid = min + ((max - min) >> 1)
-          if (index < lineToIndex[mid]) {
-            max = mid - 1
-          } else if (index >= lineToIndex[mid + 1]) {
-            min = mid + 1
-          } else {
-            min = mid
-            break
-          }
+    let min = 0
+    if (offset >= lastLine) {
+      min = lineToIndex.length - 1
+    } else {
+      let max = lineToIndex.length - 2
+      let mid
+      while (min < max) {
+        mid = min + ((max - min) >> 1)
+        if (offset < lineToIndex[mid]) {
+          max = mid - 1
+        } else if (offset >= lineToIndex[mid + 1]) {
+          min = mid + 1
+        } else {
+          min = mid
+          break
         }
       }
-      return {
-        line: min + 1,
-        col: index - lineToIndex[min] + 1
-      }
     }
-    return this.fromOffset(offset)
+    return {
+      line: min + 1,
+      col: offset - lineToIndex[min] + 1
+    }
   }
@@ -173,2 +178,18 @@
   }
+
+  toJSON () {
+    let json = {}
+    for (let name of ['hasBOM', 'css', 'file', 'id']) {
+      if (this[name] != null) {
+        json[name] = this[name]
+      }
+    }
+    if (this.map) {
+      json.map = { ...this.map }
+      if (json.map.consumerCache) {
+        json.map.consumerCache = undefined
+      }
+    }
+    return json
+  }
 }
@@ -175,0 +196,0 @@

lib/node.js

@@ -190,2 +190,7 @@ 'use strict'
         fixed[name] = value.toJSON()
+      } else if (this.type === 'root' && name === 'source') {
+        fixed[name] = {
+          input: value.input.toJSON(),
+          start: value.start
+        }
       } else {
@@ -192,0 +197,0 @@ fixed[name] = value

lib/postcss.d.ts

@@ -216,2 +216,6 @@ import { SourceMapGenerator, RawSourceMap } from 'source-map'
 
+export interface JSONHydrator {
+  (data: object): Node
+}
+
 export interface Syntax {
@@ -357,2 +361,13 @@ /**
   /**
+   * Rehydrate a JSON AST (from `Node#toJSON`) back into the AST classes.
+   *
+   * ```js
+   * const json = root.toJSON()
+   * // save to file, send by network, etc
+   * const root2  = postcss.fromJSON(json)
+   * ```
+   */
+  fromJSON: JSONHydrator
+
+  /**
    * Contains the `list` module.
@@ -417,2 +432,3 @@ */
 export const parse: Parser
+export const fromJSON: JSONHydrator
 
@@ -419,0 +435,0 @@ export const comment: Postcss['comment']

lib/postcss.js

@@ -9,2 +9,3 @@ 'use strict'
 let stringify = require('./stringify')
+let fromJSON = require('./fromJSON')
 let Warning = require('./warning')
@@ -66,2 +67,3 @@ let Comment = require('./comment')
 postcss.parse = parse
+postcss.fromJSON = fromJSON
 postcss.list = list
@@ -68,0 +70,0 @@

lib/processor.js

@@ -8,3 +8,3 @@ 'use strict'
   constructor (plugins = []) {
-    this.version = '8.1.14'
+    this.version = '8.2.0'
     this.plugins = this.normalize(plugins)
@@ -11,0 +11,0 @@ }

package.json

 {
   "name": "postcss",
-  "version": "8.1.14",
+  "version": "8.2.0",
   "description": "Tool for transforming styles with JS plugins",
@@ -5,0 +5,0 @@ "engines": {

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Improved metrics

Total package byte prevSize

202405

increased by1.28%

Number of package files

50

increased by4.17%

Lines of code

5754

increased by1.55%

No dependency changes