demo/typescript.js
function indentIfOnDifferentLines(parent, node1, node2, valueToWriteWhenNotIndenting) {
                var realNodesAreOnDifferentLines = !ts.nodeIsSynthesized(parent) && !nodeEndIsOnSameLineAsNodeStart(node1, node2);
                // Always use a newline for synthesized code if the synthesizer desires it.
                var synthesizedNodeIsOnDifferentLine = synthesizedNodeStartsOnNewLine(node2);
                if (realNodesAreOnDifferentLines || synthesizedNodeIsOnDifferentLine) {
                    increaseIndent();
                    writeLine();
                    return true;
                }
                else {
                    if (valueToWriteWhenNotIndenting) {
                        write(valueToWriteWhenNotIndenting);
                    }
                    return false;
                }
            }
function indentIfOnDifferentLines(parent, node1, node2, valueToWriteWhenNotIndenting) {
                var realNodesAreOnDifferentLines = !ts.nodeIsSynthesized(parent) && !nodeEndIsOnSameLineAsNodeStart(node1, node2);
                // Always use a newline for synthesized code if the synthesizer desires it.
                var synthesizedNodeIsOnDifferentLine = synthesizedNodeStartsOnNewLine(node2);
                if (realNodesAreOnDifferentLines || synthesizedNodeIsOnDifferentLine) {
                    increaseIndent();
                    writeLine();
                    return true;
                }
                else {
                    if (valueToWriteWhenNotIndenting) {
                        write(valueToWriteWhenNotIndenting);
                    }
                    return false;
                }
            }
Returns 'true' if the code was actually indented, false otherwise. If the code is not indented, an optional valueToWriteWhenNotIndenting will be emitted instead.