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import { ModuleFile } from '../module'; | ||
import { ModuleSlice } from './module-slice'; | ||
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/* ****************************************************************************************************************** */ | ||
// region: Utils | ||
/* ****************************************************************************************************************** */ | ||
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/** | ||
* Slice 5.5.2+ | ||
*/ | ||
export function sliceTs552(moduleFile: ModuleFile): ModuleSlice { | ||
let firstSourceFileStart: number; | ||
let wrapperStart: number | undefined; | ||
let wrapperEnd: number | undefined; | ||
let bodyStart: number; | ||
let bodyEnd: number; | ||
let sourceFileStarts: [ name: string, position: number ][] = []; | ||
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const { content } = moduleFile; | ||
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/* Find Wrapper or First File */ | ||
let matcher = /^(?:\s*\/\/\s*src\/)|(?:var\s+ts\s*=.+)/gm; | ||
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const firstMatch = matcher.exec(content); | ||
if (!firstMatch?.[0]) throw ModuleSlice.createError(); | ||
let bodyWrapper: undefined | { start: string; end: string } = undefined; | ||
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/* Handle wrapped */ | ||
if (firstMatch[0].startsWith('var')) { | ||
wrapperStart = firstMatch.index; | ||
bodyStart = firstMatch.index + firstMatch[0].length + 1; | ||
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/* Find First File */ | ||
matcher = /^\s*\/\/\s*src\//gm; | ||
matcher.lastIndex = wrapperStart; | ||
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const firstFileMatch = matcher.exec(content); | ||
if (!firstFileMatch?.[0]) throw ModuleSlice.createError(); | ||
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firstSourceFileStart = firstFileMatch.index; | ||
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/* Find Wrapper end */ | ||
// TODO - We may later want to find a better approach, but this will work for now | ||
matcher = /^}\)\({ get exports\(\) { return ts; }.+$/gm; | ||
matcher.lastIndex = firstFileMatch.index; | ||
const wrapperEndMatch = matcher.exec(content); | ||
if (!wrapperEndMatch?.[0]) throw ModuleSlice.createError(); | ||
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bodyEnd = wrapperEndMatch.index - 1; | ||
wrapperEnd = wrapperEndMatch.index + wrapperEndMatch[0].length; | ||
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bodyWrapper = { start: firstMatch[0], end: wrapperEndMatch[0] }; | ||
} | ||
/* Handle non-wrapped */ | ||
else { | ||
firstSourceFileStart = firstMatch.index; | ||
bodyStart = firstMatch.index + firstMatch[0].length; | ||
bodyEnd = content.length; | ||
} | ||
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/* Get Source File Positions */ | ||
matcher = /^\s*\/\/\s*(src\/.+)$/gm; | ||
matcher.lastIndex = firstSourceFileStart; | ||
for (let match = matcher.exec(content); match != null; match = matcher.exec(content)) { | ||
sourceFileStarts.push([ match[1], match.index ]); | ||
} | ||
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return { | ||
moduleFile, | ||
firstSourceFileStart, | ||
wrapperPos: wrapperStart != null ? { start: wrapperStart, end: wrapperEnd! } : undefined, | ||
fileEnd: content.length, | ||
bodyPos: { start: bodyStart, end: bodyEnd }, | ||
sourceFileStarts, | ||
bodyWrapper | ||
}; | ||
} | ||
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// endregion |