/*
* @see ASTVisitor#visit(DoStatement)
*/
public boolean visit(DoStatement node) {
this.fBuffer.append("do "); // $NON-NLS-1$
node.getBody().accept(this);
this.fBuffer.append(" while ("); // $NON-NLS-1$
node.getExpression().accept(this);
this.fBuffer.append(");"); // $NON-NLS-1$
return false;
}
@Override
public boolean visit(DoStatement node) {
boolean result = super.visit(node);
try {
int actionStart =
getTokenScanner()
.getTokenEndOffset(ITerminalSymbols.TokenNamedo, node.getStartPosition());
if (getSelection().getOffset() == actionStart) {
invalidSelection(
RefactoringCoreMessages.ExtractMethodAnalyzer_after_do_keyword,
JavaStatusContext.create(fCUnit, getSelection()));
return false;
}
} catch (CoreException e) {
// ignore
}
return result;
}
private boolean isClosed(IDocument document, int offset, int length) {
CompilationUnitInfo info = getCompilationUnitForMethod(document, offset);
if (info == null) return false;
CompilationUnit compilationUnit = null;
try {
ASTParser parser = ASTParser.newParser(ASTProvider.SHARED_AST_LEVEL);
parser.setSource(info.buffer);
compilationUnit = (CompilationUnit) parser.createAST(null);
} catch (ArrayIndexOutOfBoundsException x) {
// work around for parser problem
return false;
}
IProblem[] problems = compilationUnit.getProblems();
for (int i = 0; i != problems.length; ++i) {
if (problems[i].getID() == IProblem.UnmatchedBracket) return true;
}
final int relativeOffset = offset - info.delta;
ASTNode node = NodeFinder.perform(compilationUnit, relativeOffset, length);
if (length == 0) {
while (node != null
&& (relativeOffset == node.getStartPosition()
|| relativeOffset == node.getStartPosition() + node.getLength()))
node = node.getParent();
}
if (node == null) return false;
switch (node.getNodeType()) {
case ASTNode.BLOCK:
return getBlockBalance(document, offset, fPartitioning) <= 0;
case ASTNode.IF_STATEMENT:
{
IfStatement ifStatement = (IfStatement) node;
Expression expression = ifStatement.getExpression();
IRegion expressionRegion = createRegion(expression, info.delta);
Statement thenStatement = ifStatement.getThenStatement();
IRegion thenRegion = createRegion(thenStatement, info.delta);
// between expression and then statement
if (expressionRegion.getOffset() + expressionRegion.getLength() <= offset
&& offset + length <= thenRegion.getOffset()) return thenStatement != null;
Statement elseStatement = ifStatement.getElseStatement();
IRegion elseRegion = createRegion(elseStatement, info.delta);
if (elseStatement != null) {
int sourceOffset = thenRegion.getOffset() + thenRegion.getLength();
int sourceLength = elseRegion.getOffset() - sourceOffset;
IRegion elseToken =
getToken(
document,
new Region(sourceOffset, sourceLength),
ITerminalSymbols.TokenNameelse);
return elseToken != null
&& elseToken.getOffset() + elseToken.getLength() <= offset
&& offset + length < elseRegion.getOffset();
}
}
break;
case ASTNode.WHILE_STATEMENT:
case ASTNode.FOR_STATEMENT:
{
Expression expression =
node.getNodeType() == ASTNode.WHILE_STATEMENT
? ((WhileStatement) node).getExpression()
: ((ForStatement) node).getExpression();
IRegion expressionRegion = createRegion(expression, info.delta);
Statement body =
node.getNodeType() == ASTNode.WHILE_STATEMENT
? ((WhileStatement) node).getBody()
: ((ForStatement) node).getBody();
IRegion bodyRegion = createRegion(body, info.delta);
// between expression and body statement
if (expressionRegion.getOffset() + expressionRegion.getLength() <= offset
&& offset + length <= bodyRegion.getOffset()) return body != null;
}
break;
case ASTNode.DO_STATEMENT:
{
DoStatement doStatement = (DoStatement) node;
IRegion doRegion = createRegion(doStatement, info.delta);
Statement body = doStatement.getBody();
IRegion bodyRegion = createRegion(body, info.delta);
if (doRegion.getOffset() + doRegion.getLength() <= offset
&& offset + length <= bodyRegion.getOffset()) return body != null;
}
break;
}
return true;
}
