lezer - npm Package Compare versions

Comparing version 0.8.0 to 0.8.1

CHANGELOG.md

@@ -0,1 +1,7 @@
+## 0.8.1 (2020-02-26)
+
+### New features
+
+You can now find the top node type parsed by the parser through its `topType` property.
+
 ## 0.8.0 (2020-02-03)
@@ -2,0 +8,0 @@

dist/index.js

@@ -779,3 +779,3 @@ 'use strict';
         this.tokenCount = 0;
-        var topInfo = parser.topRules[top || Object.keys(parser.topRules)[0]];
+        var topInfo = top ? parser.topRules[top] : parser.defaultTop;
         if (!topInfo)
@@ -925,3 +925,3 @@ throw new RangeError("Invalid top rule name " + top);
             else {
-                var topInfo = nested.topRules[top || Object.keys(nested.topRules)[0]];
+                var topInfo = top ? nested.topRules[top] : nested.defaultTop;
                 var newStack = Stack.start(new StackContext(nested, stack.cx.maxBufferLength, clippedInput, topInfo[1], stack, wrapType), topInfo[0], stack.pos);
@@ -1240,2 +1240,14 @@ if (verbose)
     });
+    Object.defineProperty(Parser.prototype, "defaultTop", {
+        /// @internal
+        get: function () { return this.topRules[Object.keys(this.topRules)[0]]; },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(Parser.prototype, "topType", {
+        /// The node type produced by the default top rule.
+        get: function () { return this.group.types[this.defaultTop[1]]; },
+        enumerable: true,
+        configurable: true
+    });
     /// (Used by the output of the parser generator) @internal
@@ -1242,0 +1254,0 @@ Parser.deserialize = function (spec) {

dist/parse.d.ts

 import { Stack } from "./stack";
 import { InputStream, Token, Tokenizer, TokenGroup } from "./token";
-import { Tree, TreeBuffer, NodeGroup, NodeProp, NodePropSource } from "lezer-tree";
+import { Tree, TreeBuffer, NodeGroup, NodeType, NodeProp, NodePropSource } from "lezer-tree";
 export declare type NestedGrammar = null | Parser | ((input: InputStream, stack: Stack) => NestedGrammarSpec);
@@ -118,2 +118,4 @@ export interface NestedGrammarSpec {
     get hasNested(): boolean;
+    get defaultTop(): [number, number];
+    get topType(): NodeType;
     static deserialize(spec: {
@@ -120,0 +122,0 @@ states: string;

package.json

 {
   "name": "lezer",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "description": "Incremental parser",
@@ -5,0 +5,0 @@ "main": "dist/index.js",

src/parse.ts

@@ -239,3 +239,3 @@ import {Stack, Recover} from "./stack"
               {cache = undefined, strict = false, bufferLength = DefaultBufferLength, top = undefined}: ParseOptions = {}) {
-    let topInfo = parser.topRules[top || Object.keys(parser.topRules)[0]]
+    let topInfo = top ? parser.topRules[top] : parser.defaultTop
     if (!topInfo) throw new RangeError(`Invalid top rule name ${top}`)
@@ -370,3 +370,3 @@ this.stacks = [Stack.start(new StackContext(parser, bufferLength, input, topInfo[1]), topInfo[0])]
       } else {
-        let topInfo = nested.topRules[top || Object.keys(nested.topRules)[0]]
+        let topInfo = top ? nested.topRules[top] : nested.defaultTop
         let newStack = Stack.start(new StackContext(nested, stack.cx.maxBufferLength, clippedInput, topInfo[1], stack, wrapType),
@@ -673,2 +673,8 @@ topInfo[0], stack.pos)
 
+  /// @internal
+  get defaultTop() { return this.topRules[Object.keys(this.topRules)[0]] }
+
+  /// The node type produced by the default top rule.
+  get topType() { return this.group.types[this.defaultTop[1]] }
+
   /// (Used by the output of the parser generator) @internal
@@ -675,0 +681,0 @@ static deserialize(spec: {

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Improved metrics

Total package byte prevSize

2467393

increased by0.08%

Number of package files

256

increased by0.39%

Lines of code

4302

increased by0.42%

No dependency changes