How to use astArray method in wpt
Best JavaScript code snippet using wpt
index.ts
Source:index.ts 
1import lexer from '../lexer/index';2import { error } from '../utils';3import { Sentences, Block } from './grammar';4import { AstNode, Grammar, Symbol } from './types';5import { CharMap } from '../lexer/charMap';6import { isTokenEq } from '../lexer/matchUtils';7export default function parser(input: string) {8 let index = 0;9 const tokens = lexer(input);10 console.log('lexer tokens', tokens);11 const stack: Symbol[] = [Block, Sentences];12 const astArray: AstNode[] = [];13 function isEof() {14 return index >= tokens.length;15 }16 function match(gram: Grammar) {17 return gram.firstSet.some(token => {18 if (token.type === CharMap.Eof.type) return isEof();19 return isTokenEq(tokens[index], token)20 });21 }22 function followMatch(gram: Grammar) {23 return gram.hasEpsilon && gram.followSet.some(token => {24 if (token.type === CharMap.Eof.type) return isEof();25 return isTokenEq(tokens[index], token)26 });27 }28 function isTerminal(gram: Grammar) {29 return !gram.bnf || !gram.bnf.length;30 }31 function isStop(gram: Grammar) {32 return !!gram.isStop;33 }34 function processTerminal(gram: Grammar) {35 const { astCreator } = gram;36 if(astCreator) {37 const node = astCreator(astArray);38 node && astArray.push(node);39 }40 }41 42 while(stack.length) {43 // console.log('stack now', stack);44 // console.log('ast arr now', astArray);45 const topItem = stack[0](tokens[index]); // æ 顶46 if(isStop(topItem)) {47 topItem.astCreator!(astArray); // éå°stopï¼å°astStack转æ¢ä¸ºæ ç»æ48 stack.splice(0, 1); // å¼¹åºExpStop49 }else if(match(topItem)) {50 // å½åtoken matchä¸ä¸ªç¬¦å·51 // åºæ ä¸ä¸ªç»ç»ç¬¦52 // å
¥æ å¤ä¸ªå½åç»ç»ç¬¦ä¸çbnf53 stack.splice(0, 1, ...topItem.bnf);54 if(isTerminal(topItem)) {55 // å¦æå½åæ 顶æ¯ç»ç»ç¬¦56 processTerminal(topItem); // astStackä¸pushä¸ä¸ªastCreatorè¿è¡åç对象57 index++;58 }59 } else if(followMatch(topItem)) {60 stack.splice(0, 1);61 } else {62 // è¯æ³é误ï¼æ¯å¦å·¦å³æ¬å·ä¸å¹é
ï¼63 console.log('curr err bnfs', stack);64 console.log('curr astArray ', astArray);65 console.log('curr err token ', tokens[index]);66 67 error('syntax', tokens[index] && tokens[index].lexeme);68 }69 }70 return astArray;...
astCreator.ts
Source:astCreator.ts
1import { AstNode } from './../types';2type Processor = (astArray: AstNode[]) => any;3function createStop(processor: Processor) {4 return () => ({5 isStop: true,6 astCreator(astArray: AstNode[]) {7 return processor(astArray);8 }9 });10}11// å¨åéçä½ç½®æ¾ç½®Stopæ建AST12// å½astArrayé¿åº¦ä¸º3æ¶ï¼åä¸æ 1ä¸ºæ ¹èç¹ï¼ä¸æ 0ä¸2ä½ä¸ºå·¦å³èç¹13export const ExpStop = createStop((astArray: AstNode[]) => {14 const centerIndex = astArray.length - 2;15 astArray.splice(centerIndex - 1, 3, {16 ...astArray[centerIndex],17 leftNode: astArray[centerIndex - 1],18 rightNode: astArray[centerIndex + 1],19 })20});21const braceStartPosStack: number[] = [];22// æ建blockè¯å¥åºåæ°ç»23export const BraceStop = createStop((astArray) => {24 const startStackPos = braceStartPosStack.pop()!;25 console.log('startStackPos', startStackPos, astArray);26 astArray.splice(startStackPos, astArray.length - startStackPos, {27 opt: 'block_body',28 value: astArray.slice(startStackPos, astArray.length)29 });30});31export const leftBraceAstCreator = (astArray: AstNode[]) => {32 braceStartPosStack.push(astArray.length);...
ASTArrayConstructorProto.ts
Source:ASTArrayConstructorProto.ts
1// Original file: src/protos/zetasql/parser/parse_tree.proto2import type { ASTExpressionProto as _zetasql_ASTExpressionProto, ASTExpressionProto__Output as _zetasql_ASTExpressionProto__Output } from '../zetasql/ASTExpressionProto';3import type { ASTArrayTypeProto as _zetasql_ASTArrayTypeProto, ASTArrayTypeProto__Output as _zetasql_ASTArrayTypeProto__Output } from '../zetasql/ASTArrayTypeProto';4import type { AnyASTExpressionProto as _zetasql_AnyASTExpressionProto, AnyASTExpressionProto__Output as _zetasql_AnyASTExpressionProto__Output } from '../zetasql/AnyASTExpressionProto';5export interface ASTArrayConstructorProto {6 'parent'?: (_zetasql_ASTExpressionProto | null);7 'type'?: (_zetasql_ASTArrayTypeProto | null);8 'elements'?: (_zetasql_AnyASTExpressionProto)[];9}10export interface ASTArrayConstructorProto__Output {11 'parent': (_zetasql_ASTExpressionProto__Output | null);12 'type': (_zetasql_ASTArrayTypeProto__Output | null);13 'elements': (_zetasql_AnyASTExpressionProto__Output)[];...
Using AI Code Generation
1var fs = require('fs');2var wptree = require('./wptree.js');3var code = fs.readFileSync('./test.js', 'utf-8');4var tree = new wptree(code);5var astArray = tree.astArray();6console.log(astArray);7var code2 = fs.readFileSync('./test2.js', 'utf-8');8var tree2 = new wptree(code2);9var astArray2 = tree2.astArray();10console.log(astArray2);11var result = tree.compare(tree2);12console.log(result);13var fs = require('fs');14var wptree = require('./wptree.js');15var code = fs.readFileSync('./test.js', 'utf-8');16var tree = new wptree(code);17var astArray = tree.astArray();18console.log(astArray);19var code2 = fs.readFileSync('./test2.js', 'utf-8');20var tree2 = new wptree(code2);21var astArray2 = tree2.astArray();22console.log(astArray2);23var result = tree.compare(tree2);24console.log(result);25var fs = require('fs');26var wptree = require('./wptree.js');27var code = fs.readFileSync('./test.js', 'utf-8');28var tree = new wptree(code);29var astArray = tree.astArray();30console.log(astArray);31var code2 = fs.readFileSync('./test3.js', 'utf-8');32var tree2 = new wptree(code2);33var astArray2 = tree2.astArray();34console.log(astArray2);35var result = tree.compare(tree2);36console.log(result);37var fs = require('fs');38var wptree = require('./wptree.js');39var code = fs.readFileSync('./test.js', 'utf-8');40var tree = new wptree(code);41var astArray = tree.astArray();42console.log(astArray);43var code2 = fs.readFileSync('./test4.js', 'utf-8');44var tree2 = new wptree(code2);45var astArray2 = tree2.astArray();46console.log(astArray2);47var result = tree.compare(tree2);48console.log(result);
Using AI Code Generation
1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org','A.aaabbbccc111222333444555666777888999000');3var result = wpt.runTest(url, { runs: 3, video: true, location: 'Dulles_IE9' }, function(err, data) {4 console.log(data);5 wpt.getTestResults(data.data.testId, function(err, data) {6 console.log(data);7 });8});
Using AI Code Generation
1var wptree = require('./wptree.js');2var fs = require('fs');3var tree = new wptree();4var data = fs.readFileSync('test.txt');5tree.parse(data);6var astArr = tree.astArray();7console.log(astArr);
Automation Testing Tutorials
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run wpt automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
