public boolean spansOffset(Node node, int offset) {
if (node == null || node.getPosition() == null) {
return false;
}
return node.getPosition().getStartOffset() <= offset
&& node.getPosition().getEndOffset() > offset;
}
public static List<Node> getArgumentNodesFromFunctionCall(IArgumentNode iVisited) {
List<Node> arguments = new ArrayList<Node>();
Node argsNode = iVisited.getArgsNode();
Iterator<Node> iter = null;
if (argsNode != null) {
iter = argsNode.childNodes().iterator();
} else {
// block?
Node iterNode = null;
if (iVisited instanceof FCallNode) {
iterNode = ((FCallNode) iVisited).getIterNode();
} else if (iVisited instanceof CallNode) {
iterNode = ((CallNode) iVisited).getIterNode();
}
if (iterNode == null) {
return arguments;
}
if (iterNode instanceof IterNode) {
// yup, it has a block
IterNode yeah = (IterNode) iterNode;
Node varNode = yeah.getVarNode();
if (varNode instanceof DAsgnNode) {
// single variable in the block
arguments.add(varNode);
} else if (varNode instanceof MultipleAsgnNode) {
// multiple variables in the block
MultipleAsgnNode multi = (MultipleAsgnNode) varNode;
ListNode list = multi.getHeadNode();
if (list != null) {
iter = list.childNodes().iterator();
} else {
Node multiArgsNode = multi.getArgsNode();
if (multiArgsNode instanceof DAsgnNode) {
arguments.add(multiArgsNode);
}
}
}
}
}
if (iter == null) {
return arguments;
}
while (iter.hasNext()) {
arguments.add(iter.next());
}
return arguments;
}
public static String getStringRepresentation(Node node) {
if (node == null) {
return ""; //$NON-NLS-1$
}
if (node instanceof HashNode) {
return "{}"; //$NON-NLS-1$
}
if (node instanceof SelfNode) {
return "self"; //$NON-NLS-1$
}
if (node instanceof NilNode) {
return "nil"; //$NON-NLS-1$
}
if (node instanceof TrueNode) {
return "true"; //$NON-NLS-1$
}
if (node instanceof FalseNode) {
return "false"; //$NON-NLS-1$
}
if (node instanceof SymbolNode) {
return ':' + ((SymbolNode) node).getName();
}
if (node instanceof INameNode) {
return ((INameNode) node).getName();
}
if (node instanceof ZArrayNode) {
return "[]"; //$NON-NLS-1$
}
if (node instanceof FixnumNode) {
return String.valueOf(((FixnumNode) node).getValue());
}
if (node instanceof StrNode) {
return '"' + ((StrNode) node).getValue().toString() + '"';
}
if (node instanceof DStrNode) {
List<Node> children = node.childNodes();
StringBuilder text = new StringBuilder();
text.append("\""); // $NON-NLS-1$
for (Node child : children) {
text.append(getStringRepresentation(child));
}
text.append("\""); // $NON-NLS-1$
return text.toString();
}
return node.toString();
}
public static String getName(Node node) {
if (node == null) {
return EMPTY_STRING;
}
if (node instanceof ClassNode) {
return getName(((ClassNode) node).getCPath());
}
if (node instanceof ModuleNode) {
return getName(((ModuleNode) node).getCPath());
}
if (node instanceof INameNode) {
return ((INameNode) node).getName();
}
// tries reflection
try {
Method getNameMethod = node.getClass().getMethod("getName", new Class[] {}); // $NON-NLS-1$
Object name = getNameMethod.invoke(node, new Object[0]);
return (String) name;
} catch (Exception e) {
return EMPTY_STRING;
}
}
protected int spanLength(Node node) {
if (node == null || node.getPosition() == null) {
return 0;
}
return node.getPosition().getEndOffset() - node.getPosition().getStartOffset();
}
public void run(RubyRuleContext context, List<Hint> result) {
Node node = context.node;
ParserResult info = context.parserResult;
IfNode ifNode = (IfNode) node;
if (ifNode.getCondition() == null) {
// Can happen for this code:
// if ()
// end
// (typically while editing)
return;
}
Node body = ifNode.getThenBody();
Node elseNode = ifNode.getElseBody();
if (body != null && elseNode != null) {
// Can't convert if-then-else conditionals
return;
}
if (body == null && elseNode == null) {
// Can't convert empty conditions
return;
}
// Can't convert if !x/elseif blocks
if (ifNode.getElseBody() != null && ifNode.getElseBody().getNodeType() == NodeType.IFNODE) {
return;
}
int start = ifNode.getPosition().getStartOffset();
if (!RubyHints.isNullOrInvisible(body)
&& (
// Can't convert blocks with multiple statements
body.getNodeType() == NodeType.BLOCKNODE
||
// Already a statement modifier?
body.getPosition().getStartOffset() <= start)) {
return;
} else if (!RubyHints.isNullOrInvisible(elseNode)
&& (elseNode.getNodeType() == NodeType.BLOCKNODE
|| elseNode.getPosition().getStartOffset() <= start)) {
return;
}
BaseDocument doc = context.doc;
try {
int keywordOffset = ConvertIfToUnless.findKeywordOffset(context, ifNode);
if (keywordOffset == -1 || keywordOffset > doc.getLength() - 1) {
return;
}
char k = doc.getText(keywordOffset, 1).charAt(0);
if (!(k == 'i' || k == 'u')) {
return; // Probably ternary operator, ?:
}
} catch (BadLocationException ble) {
Exceptions.printStackTrace(ble);
}
// If statement that is not already a statement modifier
OffsetRange range = AstUtilities.getRange(node);
if (RubyUtils.isRhtmlDocument(doc) || RubyUtils.isYamlDocument(doc)) {
// Make sure that we're in a single contiguous Ruby section; if not, this won't work
range = LexUtilities.getLexerOffsets(info, range);
if (range == OffsetRange.NONE) {
return;
}
try {
doc.readLock();
TokenHierarchy th = TokenHierarchy.get(doc);
TokenSequence ts = th.tokenSequence();
ts.move(range.getStart());
if (!ts.moveNext() && !ts.movePrevious()) {
return;
}
if (ts.offset() + ts.token().length() < range.getEnd()) {
return;
}
} finally {
doc.readUnlock();
}
}
ConvertToModifier fix = new ConvertToModifier(context, ifNode);
if (fix.getEditList() == null) {
return;
}
List<HintFix> fixes = Collections.<HintFix>singletonList(fix);
String displayName = NbBundle.getMessage(ConvertConditionals.class, "ConvertConditionals");
Hint desc = new Hint(this, displayName, RubyUtils.getFileObject(info), range, fixes, 500);
result.add(desc);
}