Method processChildNodes

internal/format/span.go:432–520

(
	node *ast.Node,
	indenter *dynamicIndenter,
	nodeStartLine int,
	undecoratedNodeStartLine int,
	nodes *ast.NodeList,
	parent *ast.Node,
	parentStartLine int,
	parentDynamicIndentation *dynamicIndenter,
)

}

func (w *formatSpanWorker) processChildNodes(
	node *ast.Node,
	indenter *dynamicIndenter,
	nodeStartLine int,
	undecoratedNodeStartLine int,
	nodes *ast.NodeList,
	parent *ast.Node,
	parentStartLine int,
	parentDynamicIndentation *dynamicIndenter,
) {
	debug.Assert(nodes != nil)
	debug.Assert(!ast.PositionIsSynthesized(nodes.Pos()))
	debug.Assert(!ast.PositionIsSynthesized(nodes.End()))

	listStartToken := getOpenTokenForList(parent, nodes)

	listDynamicIndentation := parentDynamicIndentation
	startLine := parentStartLine

	// node range is outside the target range - do not dive inside
	if !w.originalRange.Overlaps(nodes.Loc) {
		if nodes.End() < w.originalRange.Pos() && (len(nodes.Nodes) == 0 || nodes.Nodes[0].Flags&ast.NodeFlagsReparsed == 0) {
			w.formattingScanner.skipToEndOf(&nodes.Loc)
		}
		return
	}

	if listStartToken != ast.KindUnknown {
		// introduce a new indentation scope for lists (including list start and end tokens)
		for w.formattingScanner.isOnToken() && w.formattingScanner.getTokenFullStart() < w.originalRange.End() {
			tokenInfo := w.formattingScanner.readTokenInfo(parent)
			if tokenInfo.token.Loc.End() > nodes.Pos() {
				// stop when formatting scanner moves past the beginning of node list
				break
			} else if tokenInfo.token.Kind == listStartToken {
				// consume list start token
				startLine = scanner.GetECMALineOfPosition(w.sourceFile, tokenInfo.token.Loc.Pos())

				w.consumeTokenAndAdvanceScanner(tokenInfo, parent, parentDynamicIndentation, parent, false)

				indentationOnListStartToken := 0
				if w.indentationOnLastIndentedLine != -1 {
					// scanner just processed list start token so consider last indentation as list indentation
					// function foo(): { // last indentation was 0, list item will be indented based on this value
					//   foo: number;
					// }: {};
					indentationOnListStartToken = w.indentationOnLastIndentedLine
				} else {
					startLinePosition := GetLineStartPositionForPosition(tokenInfo.token.Loc.Pos(), w.sourceFile)
					indentationOnListStartToken = FindFirstNonWhitespaceColumn(startLinePosition, tokenInfo.token.Loc.Pos(), w.sourceFile, w.formattingContext.Options)
				}

				listDynamicIndentation = w.getDynamicIndentation(parent, parentStartLine, indentationOnListStartToken, w.formattingContext.Options.IndentSize)
			} else {
				// consume any tokens that precede the list as child elements of 'node' using its indentation scope
				w.consumeTokenAndAdvanceScanner(tokenInfo, parent, parentDynamicIndentation, parent, false)
			}
		}