Method indentMultilineComment

internal/format/span.go:927–986

(commentRange core.TextRange, indentation int, firstLineIsIndented bool, indentFinalLine bool)

}

func (w *formatSpanWorker) indentMultilineComment(commentRange core.TextRange, indentation int, firstLineIsIndented bool, indentFinalLine bool) {
	// split comment in lines
	startLine := scanner.GetECMALineOfPosition(w.sourceFile, commentRange.Pos())
	endLine := scanner.GetECMALineOfPosition(w.sourceFile, commentRange.End())

	if startLine == endLine {
		if !firstLineIsIndented {
			// treat as single line comment
			w.insertIndentation(commentRange.Pos(), indentation, false)
		}
		return
	}

	parts := make([]core.TextRange, 0, strings.Count(w.sourceFile.Text()[commentRange.Pos():commentRange.End()], "\n"))
	startPos := commentRange.Pos()
	for line := startLine; line < endLine; line++ {
		endOfLine := scanner.GetECMAEndLinePosition(w.sourceFile, line)
		parts = append(parts, core.NewTextRange(startPos, endOfLine))
		startPos = int(scanner.GetECMALineStarts(w.sourceFile)[line+1])
	}

	if indentFinalLine {
		parts = append(parts, core.NewTextRange(startPos, commentRange.End()))
	}

	if len(parts) == 0 {
		return
	}

	startLinePos := int(scanner.GetECMALineStarts(w.sourceFile)[startLine])

	nonWhitespaceInFirstPartCharacter, nonWhitespaceInFirstPartColumn := findFirstNonWhitespaceCharacterAndColumn(startLinePos, parts[0].Pos(), w.sourceFile, w.formattingContext.Options)

	startIndex := 0

	if firstLineIsIndented {
		startIndex = 1
		startLine++
	}

	// shift all parts on the delta size
	delta := indentation - nonWhitespaceInFirstPartColumn
	for i := startIndex; i < len(parts); i++ {
		startLinePos := int(scanner.GetECMALineStarts(w.sourceFile)[startLine])
		nonWhitespaceCharacter := nonWhitespaceInFirstPartCharacter
		nonWhitespaceColumn := nonWhitespaceInFirstPartColumn
		if i != 0 {
			nonWhitespaceCharacter, nonWhitespaceColumn = findFirstNonWhitespaceCharacterAndColumn(parts[i].Pos(), parts[i].End(), w.sourceFile, w.formattingContext.Options)
		}
		newIndentation := nonWhitespaceColumn + delta
		if newIndentation > 0 {
			indentationString := getIndentationString(newIndentation, w.formattingContext.Options)
			w.recordReplace(startLinePos, nonWhitespaceCharacter, indentationString)
		} else {
			w.recordDelete(startLinePos, nonWhitespaceCharacter)
		}

		startLine++