/**
* Determines if an endline comment will be printed before the given else node.
*
* @param elseNode else node to check for endline comments before.
* @return <code>true</code> if an endline comment will be printed before the given else node.
*/
private boolean isCommentBefore(JavaNode elseNode) {
JavaNode slist = elseNode.getPreviousSibling();
JavaNode rcurly = null;
for (AST child = slist.getFirstChild(); child != null; child = child.getNextSibling()) {
switch (child.getType()) {
case JavaTokenTypes.RCURLY:
if (child.getNextSibling() == null) {
rcurly = (JavaNode) child;
}
break;
}
}
if (rcurly != null) {
return rcurly.hasCommentsAfter();
}
return false;
}
/** {@inheritDoc} */
public void print(AST node, NodeWriter out) throws IOException {
printCommentsBefore(node, out);
// print space between else and if:
// if { ... } else if { ... }
switch (out.last) {
case JavaTokenTypes.LITERAL_else:
out.print(SPACE, JavaTokenTypes.LITERAL_if);
break;
}
boolean spaceBefore =
AbstractPrinter.settings.getBoolean(
ConventionKeys.SPACE_BEFORE_STATEMENT_PAREN,
ConventionDefaults.SPACE_BEFORE_STATEMENT_PAREN);
int offset = 1;
if (spaceBefore) {
offset = out.print(IF_SPACE, JavaTokenTypes.LITERAL_if);
} else {
offset = out.print(IF, JavaTokenTypes.LITERAL_if);
}
trackPosition((JavaNode) node, out.line, offset, out);
AST lparen = node.getFirstChild();
boolean insertBraces =
AbstractPrinter.settings.getBoolean(
ConventionKeys.BRACE_INSERT_IF_ELSE, ConventionDefaults.BRACE_INSERT_IF_ELSE);
JavaNode rparen = printExpressionList(lparen, insertBraces, out);
AST body = rparen.getNextSibling();
boolean leftBraceNewline =
AbstractPrinter.settings.getBoolean(
ConventionKeys.BRACE_NEWLINE_LEFT, ConventionDefaults.BRACE_NEWLINE_LEFT);
boolean rightBraceNewline =
AbstractPrinter.settings.getBoolean(
ConventionKeys.BRACE_NEWLINE_RIGHT, ConventionDefaults.BRACE_NEWLINE_RIGHT);
boolean hasBraces = body.getType() == JavaTokenTypes.SLIST;
out.last = JavaTokenTypes.LITERAL_if;
JavaNode next = (JavaNode) body.getNextSibling();
if (hasBraces) {
PrinterFactory.create(body, out).print(body, out);
} else // no braces, single statement
{
if (insertBraces) // insert braces manually
{
if (out.pendingComment == null) {
out.printLeftBrace(
leftBraceNewline && !out.newline, NodeWriter.NEWLINE_YES, NodeWriter.NEWLINE_YES);
} else {
out.printLeftBrace(NodeWriter.NEWLINE_NO, NodeWriter.NEWLINE_NO);
rparen.setHiddenAfter(out.pendingComment);
printCommentsAfter(rparen, NodeWriter.NEWLINE_NO, NodeWriter.NEWLINE_YES, out);
out.pendingComment = null;
}
PrinterFactory.create(body, out).print(body, out);
out.printRightBrace(rightBraceNewline || (next == null));
} else {
if (!out.newline) out.printNewline();
out.indent();
PrinterFactory.create(body, out).print(body, out);
out.unindent();
}
}
// print the else-if or else part
if (next != null) {
printCommentsBefore(next, out);
if (!out.newline && (out.last == JavaTokenTypes.RCURLY)) {
out.print(
out.getString(
AbstractPrinter.settings.getInt(
ConventionKeys.INDENT_SIZE_BRACE_RIGHT_AFTER,
ConventionDefaults.INDENT_SIZE_BRACE_RIGHT_AFTER)),
JavaTokenTypes.WS);
}
offset = out.print(ELSE, JavaTokenTypes.LITERAL_else);
trackPosition(next, out.line, offset, out);
JavaNode block = (JavaNode) next.getNextSibling();
switch (block.getType()) {
case JavaTokenTypes.SLIST: // block
// print the endline comment for the else
printCommentsAfter(next, NodeWriter.NEWLINE_NO, !leftBraceNewline, out);
// either we print a LITERAL_if or LITERAL_else but
// we don't care as both will lead to the same result
out.last = JavaTokenTypes.LITERAL_if;
PrinterFactory.create(block, out).print(block, out);
break;
case JavaTokenTypes.LITERAL_if: // the else-if 'if'
out.last = JavaTokenTypes.LITERAL_else;
print(block, out);
break;
default: // single expression
if (insertBraces) {
out.pendingComment = next.getCommentAfter();
if (out.pendingComment == null) {
printCommentsAfter(next, NodeWriter.NEWLINE_NO, !leftBraceNewline, out);
out.printLeftBrace(
rightBraceNewline, NodeWriter.NEWLINE_NO, !rightBraceNewline && !out.newline);
out.printNewline();
} else {
out.printLeftBrace(NodeWriter.NEWLINE_NO, NodeWriter.NEWLINE_NO);
printCommentsAfter(next, NodeWriter.NEWLINE_NO, NodeWriter.NEWLINE_YES, out);
}
PrinterFactory.create(block, out).print(block, out);
out.printRightBrace();
} else {
printCommentsAfter(next, NodeWriter.NEWLINE_NO, NodeWriter.NEWLINE_NO, out);
out.printNewline();
out.indent();
PrinterFactory.create(block, out).print(block, out);
out.unindent();
}
}
}
// do as if always braces printed for the correct blank lines behaviour
out.last = JavaTokenTypes.RCURLY;
}