org.eclipse.jdt.core.dom.LabeledStatement Java Examples

private Statement getParentLoopBody(ASTNode node) {
	Statement stmt = null;
	ASTNode start = node;
	while (start != null && !(start instanceof ForStatement) && !(start instanceof DoStatement) && !(start instanceof WhileStatement) && !(start instanceof EnhancedForStatement) && !(start instanceof SwitchStatement)) {
		start = start.getParent();
	}
	if (start instanceof ForStatement) {
		stmt = ((ForStatement) start).getBody();
	} else if (start instanceof DoStatement) {
		stmt = ((DoStatement) start).getBody();
	} else if (start instanceof WhileStatement) {
		stmt = ((WhileStatement) start).getBody();
	} else if (start instanceof EnhancedForStatement) {
		stmt = ((EnhancedForStatement) start).getBody();
	}
	if (start != null && start.getParent() instanceof LabeledStatement) {
		LabeledStatement labeledStatement = (LabeledStatement) start.getParent();
		fEnclosingLoopLabel = labeledStatement.getLabel();
	}
	return stmt;
}
 

private boolean keepWalkingUp(ASTNode node) {
	if (node == null)
		return false;
	if (isAnyInstanceOf(STOPPERS, node))
		return false;
	if (fLabel != null && LabeledStatement.class.isInstance(node)){
		LabeledStatement ls= (LabeledStatement)node;
		return ! areEqualLabels(ls.getLabel(), fLabel);
	}
	if (fLabel == null) {
		if (isAnyInstanceOf(fIsBreak ? BREAKTARGETS : CONTINUETARGETS, node))
			return node.getParent() instanceof LabeledStatement; // for behavior consistency of break targets: see bug 339176
		if (node instanceof LabeledStatement)
			return false;
	}
	return true;
}
 

private Statement getParentLoopBody(ASTNode node) {
	Statement stmt= null;
	ASTNode start= node;
	while (start != null
			&& !(start instanceof ForStatement)
			&& !(start instanceof DoStatement)
			&& !(start instanceof WhileStatement)
			&& !(start instanceof EnhancedForStatement)
			&& !(start instanceof SwitchStatement)) {
		start= start.getParent();
	}
	if (start instanceof ForStatement) {
		stmt= ((ForStatement)start).getBody();
	} else if (start instanceof DoStatement) {
		stmt= ((DoStatement)start).getBody();
	} else if (start instanceof WhileStatement) {
		stmt= ((WhileStatement)start).getBody();
	} else if (start instanceof EnhancedForStatement) {
		stmt= ((EnhancedForStatement)start).getBody();
	}
	if (start != null && start.getParent() instanceof LabeledStatement) {
		LabeledStatement labeledStatement= (LabeledStatement)start.getParent();
		fEnclosingLoopLabel= labeledStatement.getLabel();
	}
	return stmt;
}
 

protected void processBlockStatement(Set<AbstractStatement> nestedStatements, CompositeStatementObject blockStatement) {
	for(AbstractStatement statementInsideBlock : blockStatement.getStatements()) {
		if(statementInsideBlock instanceof TryStatementObject) {
			CompositeStatementObject tryStatement = (CompositeStatementObject)statementInsideBlock;
			processTryStatement(nestedStatements, tryStatement);
		}
		else if(statementInsideBlock.getStatement() instanceof LabeledStatement || statementInsideBlock.getStatement() instanceof SynchronizedStatement) {
			CompositeStatementObject labeledStatement = (CompositeStatementObject)statementInsideBlock;
			processLabeledStatement(nestedStatements, labeledStatement);
		}
		else if(statementInsideBlock.getStatement() instanceof Block) {
			CompositeStatementObject blockStatement2 = (CompositeStatementObject)statementInsideBlock;
			processBlockStatement(nestedStatements, blockStatement2);
		}
		else
			nestedStatements.add(statementInsideBlock);
	}
}
 

private PDGNode getLoopNodeUnderLabel(PDGNode node, String label) {
	for(GraphEdge edge : node.incomingEdges) {
		PDGDependence dependence = (PDGDependence)edge;
		if(dependence instanceof PDGControlDependence) {
			PDGControlDependence controlDependence = (PDGControlDependence)dependence;
			PDGNode srcPDGNode = (PDGNode)controlDependence.src;
			CFGNode srcCFGNode = srcPDGNode.getCFGNode();
			if(srcCFGNode instanceof CFGBranchLoopNode || srcCFGNode instanceof CFGBranchDoLoopNode || srcCFGNode instanceof CFGBranchSwitchNode) {
				Statement predicate = srcCFGNode.getASTStatement();
				if(predicate.getParent() instanceof LabeledStatement) {
					LabeledStatement labeled = (LabeledStatement)predicate.getParent();
					if(labeled.getLabel().getIdentifier().equals(label))
						return srcPDGNode;
				}
			}
			return getLoopNodeUnderLabel(srcPDGNode, label);
		}
	}
	return null;
}
 

public ExtractMethodFragmentRefactoring() {
	this.tryStatementsToBeRemoved = new LinkedHashSet<TryStatement>();
	this.tryStatementsToBeCopied = new LinkedHashSet<TryStatement>();
	this.tryStatementBodyRewriteMap = new LinkedHashMap<TryStatement, ListRewrite>();
	this.doLoopNodes = new ArrayList<CFGBranchDoLoopNode>();
	this.labeledStatementsToBeRemoved = new LinkedHashSet<LabeledStatement>();
}
 

public Set<CFGNode> getImmediatelyNestedNodesInTrueControlFlow() {
	Set<CFGNode> nestedNodes = new LinkedHashSet<CFGNode>();
	AbstractStatement abstractStatement = getStatement();
	if(abstractStatement instanceof CompositeStatementObject) {
		Set<AbstractStatement> nestedStatements = new LinkedHashSet<AbstractStatement>();
		CompositeStatementObject composite = (CompositeStatementObject)abstractStatement;
		List<AbstractStatement> statements = composite.getStatements();
		AbstractStatement trueControlFlowStatement = statements.get(0);
		if(trueControlFlowStatement.getStatement() instanceof Block) {
			CompositeStatementObject blockStatement = (CompositeStatementObject)trueControlFlowStatement;
			processBlockStatement(nestedStatements, blockStatement);
		}
		else if(trueControlFlowStatement.getStatement() instanceof LabeledStatement || trueControlFlowStatement.getStatement() instanceof SynchronizedStatement) {
			CompositeStatementObject labeledStatement = (CompositeStatementObject)trueControlFlowStatement;
			processLabeledStatement(nestedStatements, labeledStatement);
		}
		else if(trueControlFlowStatement instanceof TryStatementObject) {
			CompositeStatementObject tryStatement = (CompositeStatementObject)trueControlFlowStatement;
			processTryStatement(nestedStatements, tryStatement);
		}
		else
			nestedStatements.add(trueControlFlowStatement);
		List<BasicBlock> nestedBasicBlocks = getNestedBasicBlocks();
		nestedBasicBlocks.add(0, getBasicBlock());
		for(BasicBlock nestedBlock : nestedBasicBlocks) {
			List<CFGNode> nodes = nestedBlock.getAllNodes();
			for(CFGNode node : nodes) {
				if(nestedStatements.contains(node.getStatement())) {
					nestedNodes.add(node);
				}
			}
		}
	}
	return nestedNodes;
}
 

public Set<CFGNode> getImmediatelyNestedNodesInFalseControlFlow() {
	Set<CFGNode> nestedNodes = new LinkedHashSet<CFGNode>();
	AbstractStatement abstractStatement = getStatement();
	if(abstractStatement instanceof CompositeStatementObject) {
		Set<AbstractStatement> nestedStatements = new LinkedHashSet<AbstractStatement>();
		CompositeStatementObject composite = (CompositeStatementObject)abstractStatement;
		List<AbstractStatement> statements = composite.getStatements();
		if(statements.size() == 2) {
			AbstractStatement falseControlFlowStatement = statements.get(1);
			if(falseControlFlowStatement.getStatement() instanceof Block) {
				CompositeStatementObject blockStatement = (CompositeStatementObject)falseControlFlowStatement;
				processBlockStatement(nestedStatements, blockStatement);
			}
			else if(falseControlFlowStatement.getStatement() instanceof LabeledStatement || falseControlFlowStatement.getStatement() instanceof SynchronizedStatement) {
				CompositeStatementObject labeledStatement = (CompositeStatementObject)falseControlFlowStatement;
				processLabeledStatement(nestedStatements, labeledStatement);
			}
			else if(falseControlFlowStatement instanceof TryStatementObject) {
				CompositeStatementObject tryStatement = (CompositeStatementObject)falseControlFlowStatement;
				processTryStatement(nestedStatements, tryStatement);
			}
			else
				nestedStatements.add(falseControlFlowStatement);
			List<BasicBlock> nestedBasicBlocks = getNestedBasicBlocks();
			nestedBasicBlocks.add(0, getBasicBlock());
			for(BasicBlock nestedBlock : nestedBasicBlocks) {
				List<CFGNode> nodes = nestedBlock.getAllNodes();
				for(CFGNode node : nodes) {
					if(nestedStatements.contains(node.getStatement())) {
						nestedNodes.add(node);
					}
				}
			}
		}
	}
	return nestedNodes;
}
 

public Set<CFGNode> getImmediatelyNestedNodesFromAST() {
	Set<CFGNode> nestedNodes = new LinkedHashSet<CFGNode>();
	AbstractStatement abstractStatement = getStatement();
	if(abstractStatement instanceof CompositeStatementObject) {
		Set<AbstractStatement> nestedStatements = new LinkedHashSet<AbstractStatement>();
		CompositeStatementObject composite = (CompositeStatementObject)abstractStatement;
		List<AbstractStatement> statements = composite.getStatements();
		for(AbstractStatement statement : statements) {
			if(statement.getStatement() instanceof Block) {
				CompositeStatementObject blockStatement = (CompositeStatementObject)statement;
				processBlockStatement(nestedStatements, blockStatement);
			}
			else if(statement.getStatement() instanceof LabeledStatement || statement.getStatement() instanceof SynchronizedStatement) {
				CompositeStatementObject labeledStatement = (CompositeStatementObject)statement;
				processLabeledStatement(nestedStatements, labeledStatement);
			}
			else if(statement instanceof TryStatementObject) {
				CompositeStatementObject tryStatement = (CompositeStatementObject)statement;
				processTryStatement(nestedStatements, tryStatement);
			}
			else
				nestedStatements.add(statement);
		}
		List<BasicBlock> nestedBasicBlocks = getNestedBasicBlocks();
		if(this instanceof CFGBranchDoLoopNode)
			nestedBasicBlocks.add(getBasicBlock());
		else
			nestedBasicBlocks.add(0, getBasicBlock());
		for(BasicBlock nestedBlock : nestedBasicBlocks) {
			List<CFGNode> nodes = nestedBlock.getAllNodes();
			for(CFGNode node : nodes) {
				if(nestedStatements.contains(node.getStatement())) {
					nestedNodes.add(node);
				}
			}
		}
	}
	return nestedNodes;
}
 

@Override
public boolean visit(LabeledStatement node) {
	if (fDefiningLabel == null) {
		SimpleName label= node.getLabel();
		if (fLabel == label || isSameLabel(label) && ASTNodes.isParent(fLabel, node)) {
			fDefiningLabel= node;
			fResult.add(label);
		}
	}
	node.getBody().accept(this);
	return false;
}
 

public boolean visit(LabeledStatement node) {
	int start = _unit.getLineNumber(node.getStartPosition());
	if(start == _extendedLine){
		_extendedStatement = node;
		return false;
	}
	return true;
}
 

public boolean match(LabeledStatement node, Object other) {
	if (!(other instanceof LabeledStatement)) {
		return false;
	}
	LabeledStatement o = (LabeledStatement) other;
	if(isNestedUnderAnonymousClassDeclaration(node) && isNestedUnderAnonymousClassDeclaration(o)) {
		return super.match(node, o);
	}
	return (
			safeSubtreeMatch(node.getLabel(), o.getLabel()));
}
 

@Override
public void endVisit(LabeledStatement node) {
	if (skipNode(node))
		return;
	FlowInfo info= assignFlowInfo(node, node.getBody());
	if (info != null)
		info.removeLabel(node.getLabel());
}
 

public boolean isDangligIf() {
	List<Statement> statements= fDeclaration.getBody().statements();
	if (statements.size() != 1)
		return false;

	ASTNode p= statements.get(0);

	while (true) {
		if (p instanceof IfStatement) {
			return ((IfStatement) p).getElseStatement() == null;
		} else {

			ChildPropertyDescriptor childD;
			if (p instanceof WhileStatement) {
				childD= WhileStatement.BODY_PROPERTY;
			} else if (p instanceof ForStatement) {
				childD= ForStatement.BODY_PROPERTY;
			} else if (p instanceof EnhancedForStatement) {
				childD= EnhancedForStatement.BODY_PROPERTY;
			} else if (p instanceof DoStatement) {
				childD= DoStatement.BODY_PROPERTY;
			} else if (p instanceof LabeledStatement) {
				childD= LabeledStatement.BODY_PROPERTY;
			} else {
				return false;
			}
			Statement body= (Statement) p.getStructuralProperty(childD);
			if (body instanceof Block) {
				return false;
			} else {
				p= body;
			}
		}
	}
}
 

@Override
public boolean visit(final LabeledStatement node) {
  this.addProblem(node, "LabeledStatements are not supported");
  this.appendToBuffer("/*");
  node.getLabel().accept(this);
  this.appendToBuffer(": */");
  node.getBody().accept(this);
  return false;
}
 

private LabeledStatement belongsToLabeledStatement(PDGNode pdgNode) {
	Statement statement = pdgNode.getASTStatement();
	if(statement.getParent() instanceof LabeledStatement) {
		return (LabeledStatement) statement.getParent();
	}
	return null;
}
 

@Override
public void endVisit(LabeledStatement node) {
	if (skipNode(node)) {
		return;
	}
	FlowInfo info = assignFlowInfo(node, node.getBody());
	if (info != null) {
		info.removeLabel(node.getLabel());
	}
}
 

public boolean visit(LabeledStatement stmnt){
	/*
	 * Identifier : Statement
	 */
	handleExpression(stmnt.getLabel());
	appendColon();
	return false;
}
 

@Override
public boolean visit(LabeledStatement node) {
	return visitNode(node);
}
 

public boolean visit(LabeledStatement node) {
	statementsList.add(node);
	
	return true;
}
 

public boolean visit(LabeledStatement node) {
	statementList.add(node);
	return true;
}
 

@Override
public void endVisit(LabeledStatement node) {
	endVisitNode(node);
}
 

@Override
public boolean visit(LabeledStatement node) {
	add(fCreator.create(node));
	return true;
}
 

@Override
public boolean visit(LabeledStatement node) {
	if (node.subtreeMatch(fMatcher, fNodeToMatch))
		return matches(node);
	return super.visit(node);
}
 

private Location computeBreakContinue(ITypeRoot typeRoot, int line, int column) throws CoreException {
	int offset = JsonRpcHelpers.toOffset(typeRoot.getBuffer(), line, column);
	if (offset >= 0) {
		CompilationUnit unit = SharedASTProviderCore.getAST(typeRoot, SharedASTProviderCore.WAIT_YES, null);
		if (unit == null) {
			return null;
		}
		ASTNode selectedNode = NodeFinder.perform(unit, offset, 0);
		ASTNode node = null;
		SimpleName label = null;
		if (selectedNode instanceof BreakStatement) {
			node = selectedNode;
			label = ((BreakStatement) node).getLabel();
		} else if (selectedNode instanceof ContinueStatement) {
			node = selectedNode;
			label = ((ContinueStatement) node).getLabel();
		} else if (selectedNode instanceof SimpleName && selectedNode.getParent() instanceof BreakStatement) {
			node = selectedNode.getParent();
			label = ((BreakStatement) node).getLabel();
		} else if (selectedNode instanceof SimpleName && selectedNode.getParent() instanceof ContinueStatement) {
			node = selectedNode.getParent();
			label = ((ContinueStatement) node).getLabel();
		}
		if (node != null) {
			ASTNode parent = node.getParent();
			ASTNode target = null;
			while (parent != null) {
				if (parent instanceof MethodDeclaration || parent instanceof Initializer) {
					break;
				}
				if (label == null) {
					if (parent instanceof ForStatement || parent instanceof EnhancedForStatement || parent instanceof WhileStatement || parent instanceof DoStatement) {
						target = parent;
						break;
					}
					if (node instanceof BreakStatement) {
						if (parent instanceof SwitchStatement || parent instanceof SwitchExpression) {
							target = parent;
							break;
						}
					}
					if (node instanceof LabeledStatement) {
						target = parent;
						break;
					}
				} else if (LabeledStatement.class.isInstance(parent)) {
					LabeledStatement ls = (LabeledStatement) parent;
					if (ls.getLabel().getIdentifier().equals(label.getIdentifier())) {
						target = ls;
						break;
					}
				}
				parent = parent.getParent();
			}
			if (target != null) {
				int start = target.getStartPosition();
				int end = new TokenScanner(unit.getTypeRoot()).getNextEndOffset(node.getStartPosition(), true) - start;
				if (start >= 0 && end >= 0) {
					return JDTUtils.toLocation((ICompilationUnit) typeRoot, start, end);
				}
			}
		}
	}
	return null;
}
 

private LabeledStmt visit(LabeledStatement node) {
	int startLine = _cunit.getLineNumber(node.getStartPosition());
	int endLine = _cunit.getLineNumber(node.getStartPosition() + node.getLength());
	LabeledStmt labeledStmt = new LabeledStmt(startLine, endLine, node);
	return labeledStmt;
}
 

/**
 * @param node the AST node
 * @return array of type constraints, may be empty
 * @see org.eclipse.jdt.core.dom.ASTVisitor#visit(org.eclipse.jdt.core.dom.LabeledStatement)
 */
public ITypeConstraint[] create(LabeledStatement node) {
	return EMPTY_ARRAY;
}