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pugDocument.ts
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pugDocument.ts
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import { SourceMapBase, Mapping } from '@volar/source-map';
import { TextDocument } from 'vscode-languageserver-textdocument';
import type * as html from 'vscode-html-languageservice';
import { baseParse } from './baseParse';
import * as vscode from 'vscode-languageserver-types';
export interface PugDocument extends ReturnType<ReturnType<typeof register>> { }
export function register(htmlLs: html.LanguageService) {
return (pugCode: string) => {
const parsed = baseParse(pugCode);
const htmlTextDocument = TextDocument.create('foo.html', 'html', 0, parsed.htmlCode);
const sourceMap = new SourceMap(
parsed.pugTextDocument,
htmlTextDocument,
parsed.sourceMap.mappings,
);
const htmlDocument = htmlLs.parseHTMLDocument(htmlTextDocument);
return {
pugTextDocument: parsed.pugTextDocument,
htmlTextDocument,
htmlDocument,
sourceMap,
error: parsed.error,
ast: parsed.ast,
};
}
}
// TODO: reuse from vueDocuments.ts
export class SourceMap<Data = undefined> extends SourceMapBase<Data> {
constructor(
public sourceDocument: TextDocument,
public mappedDocument: TextDocument,
public _mappings?: Mapping<Data>[],
) {
super(_mappings);
}
public getSourceRange<T extends number | vscode.Position>(start: T, end?: T, filter?: (data: Data) => boolean) {
for (const mapped of this.getRanges(start, end ?? start, false, filter)) {
return mapped;
}
}
public getMappedRange<T extends number | vscode.Position>(start: T, end?: T, filter?: (data: Data) => boolean) {
for (const mapped of this.getRanges(start, end ?? start, true, filter)) {
return mapped;
}
}
public getSourceRanges<T extends number | vscode.Position>(start: T, end?: T, filter?: (data: Data) => boolean) {
return this.getRanges(start, end ?? start, false, filter);
}
public getMappedRanges<T extends number | vscode.Position>(start: T, end?: T, filter?: (data: Data) => boolean) {
return this.getRanges(start, end ?? start, true, filter);
}
protected * getRanges<T extends number | vscode.Position>(start: T, end: T, sourceToTarget: boolean, filter?: (data: Data) => boolean) {
const startIsNumber = typeof start === 'number';
const endIsNumber = typeof end === 'number';
const toDoc = sourceToTarget ? this.mappedDocument : this.sourceDocument;
const fromDoc = sourceToTarget ? this.sourceDocument : this.mappedDocument;
const startOffset = startIsNumber ? start : fromDoc.offsetAt(start);
const endOffset = endIsNumber ? end : fromDoc.offsetAt(end);
for (const mapped of super.getRanges(startOffset, endOffset, sourceToTarget, filter)) {
yield getMapped(mapped);
}
function getMapped(mapped: [{ start: number, end: number }, Data]): [{ start: T, end: T }, Data] {
if (startIsNumber) {
return mapped as [{ start: T, end: T }, Data];
}
return [{
start: toDoc.positionAt(mapped[0].start) as T,
end: toDoc.positionAt(mapped[0].end) as T,
}, mapped[1]];
}
}
}