private static boolean hasSideEffect(SimpleName reference) {
ASTNode parent = reference.getParent();
while (parent instanceof QualifiedName) {
parent = parent.getParent();
}
if (parent instanceof FieldAccess) {
parent = parent.getParent();
}
ASTNode node = null;
int nameParentType = parent.getNodeType();
if (nameParentType == ASTNode.ASSIGNMENT) {
Assignment assignment = (Assignment) parent;
node = assignment.getRightHandSide();
} else if (nameParentType == ASTNode.SINGLE_VARIABLE_DECLARATION) {
SingleVariableDeclaration decl = (SingleVariableDeclaration) parent;
node = decl.getInitializer();
if (node == null) return false;
} else if (nameParentType == ASTNode.VARIABLE_DECLARATION_FRAGMENT) {
node = parent;
} else {
return false;
}
ArrayList<Expression> sideEffects = new ArrayList<Expression>();
node.accept(new SideEffectFinder(sideEffects));
return sideEffects.size() > 0;
}
public IBinding[] getDeclarationsAfter(int offset, int flags) {
try {
org.eclipse.che.ide.ext.java.jdt.core.dom.NodeFinder finder =
new org.eclipse.che.ide.ext.java.jdt.core.dom.NodeFinder(fRoot, offset, 0);
ASTNode node = finder.getCoveringNode();
if (node == null) {
return null;
}
ASTNode declaration = findParentStatement(node);
while (declaration instanceof Statement && declaration.getNodeType() != ASTNode.BLOCK) {
declaration = declaration.getParent();
}
if (declaration instanceof Block) {
DefaultBindingRequestor requestor = new DefaultBindingRequestor();
DeclarationsAfterVisitor visitor =
new DeclarationsAfterVisitor(node.getStartPosition(), flags, requestor);
declaration.accept(visitor);
List<IBinding> result = requestor.getResult();
return result.toArray(new IBinding[result.size()]);
}
return NO_BINDING;
} finally {
clearLists();
}
}
private void visitBackwards(List<? extends ASTNode> list) {
if (fBreak) return;
for (int i = list.size() - 1; i >= 0; i--) {
ASTNode curr = list.get(i);
if (curr.getStartPosition() < fPosition) {
curr.accept(this);
}
}
}
private void removeVariableWithInitializer(
ASTRewrite rewrite, ASTNode initializerNode, ASTNode statementNode, TextEditGroup group) {
boolean performRemove = fForceRemove;
if (!performRemove) {
ArrayList<Expression> sideEffectNodes = new ArrayList<Expression>();
initializerNode.accept(new SideEffectFinder(sideEffectNodes));
performRemove = sideEffectNodes.isEmpty();
}
if (performRemove) {
removeStatement(rewrite, statementNode, group);
fRemovedAssignmentsCount++;
} else {
ASTNode initNode = rewrite.createMoveTarget(initializerNode);
ExpressionStatement statement =
rewrite.getAST().newExpressionStatement((Expression) initNode);
rewrite.replace(statementNode, statement, null);
fAlteredAssignmentsCount++;
}
}