demo/typescript.js
function getActualIndentationForNode(current, parent, currentLineAndChar, parentAndChildShareLine, sourceFile, options) {
                // actual indentation is used for statements\declarations if one of cases below is true:
                // - parent is SourceFile - by default immediate children of SourceFile are not indented except when user indents them manually
                // - parent and child are not on the same line
                var useActualIndentation = (ts.isDeclaration(current) || ts.isStatement(current)) &&
                    (parent.kind === 248 /* SourceFile */ || !parentAndChildShareLine);
                if (!useActualIndentation) {
                    return -1 /* Unknown */;
                }
                return findColumnForFirstNonWhitespaceCharacterInLine(currentLineAndChar, sourceFile, options);
            }
function getActualIndentationForNode(current, parent, currentLineAndChar, parentAndChildShareLine, sourceFile, options) {
                // actual indentation is used for statements\declarations if one of cases below is true:
                // - parent is SourceFile - by default immediate children of SourceFile are not indented except when user indents them manually
                // - parent and child are not on the same line
                var useActualIndentation = (ts.isDeclaration(current) || ts.isStatement(current)) &&
                    (parent.kind === 248 /* SourceFile */ || !parentAndChildShareLine);
                if (!useActualIndentation) {
                    return -1 /* Unknown */;
                }
                return findColumnForFirstNonWhitespaceCharacterInLine(currentLineAndChar, sourceFile, options);
            }
/*
Function returns Value.Unknown if actual indentation for node should not be used (i.e because node is nested expression)