Method prefixLines

src/extension/commands/edit.ts:152–187

(editor: vs.TextEditor, selections: readonly vs.Selection[], prefix: string)

	}

	private async prefixLines(editor: vs.TextEditor, selections: readonly vs.Selection[], prefix: string) {
		const document = editor.document;
		// In case we have overlapping selections, keep track of lines we've done.
		const doneLines = new Set<number>();

		// Find the minimum indent, so we can insert all slashes at the same level even if
		// there is indented code.
		let minIndent: number | undefined;
		for (const selection of selections) {
			for (let lineNumber = selection.start.line; lineNumber <= selection.end.line; lineNumber++) {
				const line = document.lineAt(lineNumber);
				if (line.isEmptyOrWhitespace)
					continue;

				if (!minIndent || line.firstNonWhitespaceCharacterIndex < minIndent)
					minIndent = line.firstNonWhitespaceCharacterIndex;
			}
		}

		await editor.edit((edit) => {
			for (const selection of selections) {
				for (let lineNumber = selection.start.line; lineNumber <= selection.end.line; lineNumber++) {
					if (doneLines.has(lineNumber))
						continue;
					doneLines.add(lineNumber);

					const line = document.lineAt(lineNumber);
					if (line.isEmptyOrWhitespace)
						continue;

					const insertionPoint = line.range.start.translate(0, minIndent);
					edit.insert(insertionPoint, prefix);
				}
			}
		});
	}

	private async removeLinePrefixes(editor: vs.TextEditor, selections: readonly vs.Selection[], prefixes: string[]) {
		const document = editor.document;