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Original file line number | Diff line number | Diff line change |
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/****************************************************************************** | ||
* Copyright 2021 TypeFox GmbH | ||
* This program and the accompanying materials are made available under the | ||
* terms of the MIT License, which is available in the project root. | ||
******************************************************************************/ | ||
import { AstUtils, type Grammar, GrammarAST, GrammarUtils, stream } from 'langium'; | ||
import chalk from 'chalk'; | ||
|
||
//eslint-disable-next-line @typescript-eslint/no-explicit-any | ||
export function log(level: 'log' | 'warn' | 'error', options: { watch?: boolean }, message: string, ...args: any[]): void { | ||
if (options.watch) { | ||
console[level](getTime() + message, ...args); | ||
} else { | ||
console[level](message, ...args); | ||
} | ||
} | ||
|
||
let start = process.hrtime(); | ||
|
||
export function elapsedTime(): string { | ||
const elapsed = process.hrtime(start)[1] / 1000000; // divide by a million to get nano to milli | ||
start = process.hrtime(); // reset the timer | ||
return elapsed.toFixed(); | ||
} | ||
|
||
export function getTime(): string { | ||
const date = new Date(); | ||
return `[${chalk.gray(`${padZeroes(date.getHours())}:${padZeroes(date.getMinutes())}:${padZeroes(date.getSeconds())}`)}] `; | ||
} | ||
|
||
function padZeroes(i: number): string { | ||
return i.toString().padStart(2, '0'); | ||
} | ||
|
||
export function collectKeywords(grammar: Grammar): string[] { | ||
const keywords = new Set<string>(); | ||
const reachableRules = GrammarUtils.getAllReachableRules(grammar, false); | ||
|
||
for (const keyword of stream(reachableRules) | ||
.filter(GrammarAST.isParserRule) | ||
.flatMap(rule => AstUtils.streamAllContents(rule).filter(GrammarAST.isKeyword))) { | ||
keywords.add(keyword.value); | ||
} | ||
|
||
return Array.from(keywords).sort(); | ||
} | ||
|
||
export function collectTerminalRegexps(grammar: Grammar): Record<string, RegExp> { | ||
const result: Record<string, RegExp> = {}; | ||
const reachableRules = GrammarUtils.getAllReachableRules(grammar, false); | ||
for (const terminalRule of stream(reachableRules).filter(GrammarAST.isTerminalRule)) { | ||
const name = terminalRule.name; | ||
const regexp = GrammarUtils.terminalRegex(terminalRule); | ||
result[name] = regexp; | ||
} | ||
return result; | ||
} |
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