/*
* @see ASTVisitor#visit(Block)
*/
public boolean visit(Block node) {
this.fBuffer.append("{"); // $NON-NLS-1$
for (Iterator it = node.statements().iterator(); it.hasNext(); ) {
Statement s = (Statement) it.next();
s.accept(this);
}
this.fBuffer.append("}"); // $NON-NLS-1$
return false;
}
private void convertBody(
Statement body,
final IBinding indexBinding,
final IBinding arrayBinding,
final String parameterName,
final ASTRewrite rewrite,
final TextEditGroup editGroup,
final LinkedProposalPositionGroup pg) {
final AST ast = body.getAST();
body.accept(
new GenericVisitor() {
@Override
public boolean visit(ArrayAccess node) {
IBinding binding = getBinding(node.getArray());
if (arrayBinding.equals(binding)) {
IBinding index = getBinding(node.getIndex());
if (indexBinding.equals(index)) {
replaceAccess(node);
}
}
return super.visit(node);
}
private void replaceAccess(ASTNode node) {
if (fElementDeclaration != null
&& node.getLocationInParent() == VariableDeclarationFragment.INITIALIZER_PROPERTY) {
VariableDeclarationFragment fragment = (VariableDeclarationFragment) node.getParent();
IBinding targetBinding = fragment.getName().resolveBinding();
if (targetBinding != null) {
VariableDeclarationStatement statement =
(VariableDeclarationStatement) fragment.getParent();
if (statement.fragments().size() == 1) {
rewrite.remove(statement, editGroup);
} else {
ListRewrite listRewrite =
rewrite.getListRewrite(
statement, VariableDeclarationStatement.FRAGMENTS_PROPERTY);
listRewrite.remove(fragment, editGroup);
}
} else {
SimpleName name = ast.newSimpleName(parameterName);
rewrite.replace(node, name, editGroup);
pg.addPosition(rewrite.track(name), true);
}
} else {
SimpleName name = ast.newSimpleName(parameterName);
rewrite.replace(node, name, editGroup);
pg.addPosition(rewrite.track(name), true);
}
}
});
}
/*
* @see ASTVisitor#visit(SwitchStatement)
*/
public boolean visit(SwitchStatement node) {
this.fBuffer.append("switch ("); // $NON-NLS-1$
node.getExpression().accept(this);
this.fBuffer.append(") "); // $NON-NLS-1$
this.fBuffer.append("{"); // $NON-NLS-1$
for (Iterator it = node.statements().iterator(); it.hasNext(); ) {
Statement s = (Statement) it.next();
s.accept(this);
}
this.fBuffer.append("}"); // $NON-NLS-1$
return false;
}
/*
* returns false iff
* <ul>
* <li><code>indexBinding</code> is used for anything else then accessing
* an element of <code>arrayBinding</code></li>
* <li><code>arrayBinding</code> is assigned</li>
* <li>an element of <code>arrayBinding</code> is assigned</li>
* <li><code>lengthBinding</code> is referenced</li>
* </ul>
* within <code>body</code>
*/
private boolean validateBody(ForStatement statement) {
Statement body = statement.getBody();
try {
body.accept(
new GenericVisitor() {
/** {@inheritDoc} */
@Override
protected boolean visitNode(ASTNode node) {
if (node instanceof Name) {
Name name = (Name) node;
IBinding nameBinding = name.resolveBinding();
if (nameBinding == null) throw new InvalidBodyError();
if (nameBinding.equals(fIndexBinding)) {
if (node.getLocationInParent() != ArrayAccess.INDEX_PROPERTY)
throw new InvalidBodyError();
ArrayAccess arrayAccess = (ArrayAccess) node.getParent();
Expression array = arrayAccess.getArray();
if (array instanceof QualifiedName) {
if (!(fArrayAccess instanceof QualifiedName)) throw new InvalidBodyError();
IBinding varBinding1 = ((QualifiedName) array).getQualifier().resolveBinding();
if (varBinding1 == null) throw new InvalidBodyError();
IBinding varBinding2 =
((QualifiedName) fArrayAccess).getQualifier().resolveBinding();
if (!varBinding1.equals(varBinding2)) throw new InvalidBodyError();
} else if (array instanceof FieldAccess) {
Expression arrayExpression = ((FieldAccess) array).getExpression();
if (arrayExpression instanceof ThisExpression) {
if (fArrayAccess instanceof FieldAccess) {
Expression arrayAccessExpression =
((FieldAccess) fArrayAccess).getExpression();
if (!(arrayAccessExpression instanceof ThisExpression))
throw new InvalidBodyError();
} else if (fArrayAccess instanceof QualifiedName) {
throw new InvalidBodyError();
}
} else {
if (!(fArrayAccess instanceof FieldAccess)) throw new InvalidBodyError();
Expression arrayAccessExpression =
((FieldAccess) fArrayAccess).getExpression();
if (!arrayExpression.subtreeMatch(
new JdtASTMatcher(), arrayAccessExpression)) {
throw new InvalidBodyError();
}
}
} else {
if (fArrayAccess instanceof QualifiedName) {
throw new InvalidBodyError();
}
if (fArrayAccess instanceof FieldAccess) {
Expression arrayAccessExpression =
((FieldAccess) fArrayAccess).getExpression();
if (!(arrayAccessExpression instanceof ThisExpression))
throw new InvalidBodyError();
}
}
IBinding binding = getBinding(array);
if (binding == null) throw new InvalidBodyError();
if (!fArrayBinding.equals(binding)) throw new InvalidBodyError();
} else if (nameBinding.equals(fArrayBinding)) {
if (isAssigned(node)) throw new InvalidBodyError();
} else if (nameBinding.equals(fLengthBinding)) {
throw new InvalidBodyError();
} else if (fElementDeclaration != null
&& nameBinding.equals(fElementDeclaration.getName().resolveBinding())) {
if (isAssigned(node)) fElementDeclaration = null;
}
}
return true;
}
private boolean isAssigned(ASTNode current) {
while (current != null && !(current instanceof Statement)) {
if (current.getLocationInParent() == Assignment.LEFT_HAND_SIDE_PROPERTY)
return true;
if (current instanceof PrefixExpression) return true;
if (current instanceof PostfixExpression) return true;
current = current.getParent();
}
return false;
}
@Override
public boolean visit(ArrayAccess node) {
if (fElementDeclaration != null) return super.visit(node);
IBinding binding = getBinding(node.getArray());
if (fArrayBinding.equals(binding)) {
IBinding index = getBinding(node.getIndex());
if (fIndexBinding.equals(index)) {
if (node.getLocationInParent()
== VariableDeclarationFragment.INITIALIZER_PROPERTY) {
fElementDeclaration = (VariableDeclarationFragment) node.getParent();
}
}
}
return super.visit(node);
}
});
} catch (InvalidBodyError e) {
return false;
}
return true;
}