/**
* Returns the initializer expression.
*
* @return The initializer expression or <code>null<code> if <code>this
* </code> represents an array initializer.
*/
public Expression getExpression()
{
if (mIsArrayInitializer) {
return null;
}
if (mExpression == null) {
mExpression = AST2Expression.resolveExpression(
mInitializerTree, getTokenRewriteStream());
}
return mExpression;
}
/**
* Returns the expression that belongs to the <code>throw</code> statement,
* i.e. this is the expression that states or creates the object that should
* be thrown.
*
* @return The expression that belongs to the <code>throw</code> statement.
*/
public Expression getExpression()
{
if (mExpression == null)
{
mExpression = AST2Expression.resolveExpression((AST2JSOMTree)
getTreeNode().GetChild(0), getTokenRewriteStream());
}
return mExpression;
}
/**
* Returns the expression for the cases where <code>
* getAnnotationRValueType() == RValueType.EXPRESSION</code>.
*
* @return The expression or <code>null</code> if <code>
* getAnnotationRValueType() != RValueType.EXPRESSION</code>.
*/
public Expression getExpression()
{
if (mRValueType != RValueType.EXPRESSION) {
return null;
}
if (mExpression == null) {
mExpression = AST2Expression.resolveExpression((AST2JSOMTree)
getTreeNode(), getTokenRewriteStream());
}
return mExpression;
}
/**
* Returns the </code>while</code> or <code>do...while</code> statement's
* condition expression.
*
* @return The </code>while</code> or <code>do...while</code> statement's
* condition expression.
*/
public Expression getCondition()
{
if (mCondition == null) {
AST2JSOMTree tree = null;
if (mIsWhileStatement) {
tree = (AST2JSOMTree)getTreeNode().GetChild(0).GetChild(0);
} else {
tree = (AST2JSOMTree)getTreeNode().GetChild(1).GetChild(0);
}
mCondition = AST2Expression.resolveExpression(
tree, getTokenRewriteStream());
}
return mCondition;
}
/**
* Returns the expression of the <code>case<code> clause.
*
* @return The expression of the <code>case<code> clause or <code>null
* </code> if <code>this</code> is actually a <code>default
* </code> clause.
*/
public Expression getExpression()
{
if (mIsDefaultClause) {
return null;
}
if (mCaseExpression == null) {
mCaseExpression = AST2Expression.resolveExpression((AST2JSOMTree)
getTreeNode().GetChild(0), getTokenRewriteStream());
}
return mCaseExpression;
}
/**
* Returns the <code>for</code> statement's condition expression.
*
* @return The <code>for</code> statement's condition expression or <code>
* null</code> if no condition expression has been stated.
*/
public Expression getForCondition()
{
if (!mHasForCondition) {
return null; // There's no condition expression.
}
if (mConditionExpression == null) {
mConditionExpression = AST2Expression.resolveExpression((AST2JSOMTree)
getTreeNode().GetChild(1).GetChild(0),
getTokenRewriteStream());
}
return mConditionExpression;
}
/**
* Returns the expression that follows the <code>return</code> keyword.
*
* @return The expression that follows the <code>return</code> statement
* or <code>null</code> if the return statement belongs to a void
* method's scope.
*/
public Expression getExpression()
{
if (!mHasExpression)
{
return null; // No expression available.
}
if (mExpression == null)
{
mExpression = AST2Expression.resolveExpression((AST2JSOMTree)
getTreeNode().GetChild(0), getTokenRewriteStream());
}
return mExpression;
}
