public static void addChangeIdentifierCaseProposal(
Node node, Collection<ICompletionProposal> proposals, IFile file) {
Tree.Identifier identifier = null;
if (node instanceof Tree.TypeDeclaration) {
identifier = ((Tree.TypeDeclaration) node).getIdentifier();
} else if (node instanceof Tree.TypeParameterDeclaration) {
identifier = ((Tree.TypeParameterDeclaration) node).getIdentifier();
} else if (node instanceof Tree.TypedDeclaration) {
identifier = ((Tree.TypedDeclaration) node).getIdentifier();
} else if (node instanceof Tree.ImportPath) {
List<Identifier> importIdentifiers = ((Tree.ImportPath) node).getIdentifiers();
for (Identifier importIdentifier : importIdentifiers) {
if (importIdentifier.getText() != null
&& !importIdentifier.getText().isEmpty()
&& Character.isUpperCase(importIdentifier.getText().charAt(0))) {
identifier = importIdentifier;
break;
}
}
}
if (identifier != null && !identifier.getText().isEmpty()) {
addProposal(identifier, proposals, file);
}
}
private static void addProposal(
Identifier identifier, Collection<ICompletionProposal> proposals, IFile file) {
String oldIdentifier = identifier.getText();
int first = oldIdentifier.codePointAt(0);
int newFirst = isUpperCase(first) ? toLowerCase(first) : toUpperCase(first);
String newFirstLetter = new String(toChars(newFirst));
String newIdentifier = newFirstLetter + oldIdentifier.substring(charCount(first));
TextFileChange change = new TextFileChange("Change initial case of identifier", file);
change.setEdit(new ReplaceEdit(identifier.getStartIndex(), 1, newFirstLetter));
ChangeInitialCaseOfIdentifierInDeclaration proposal =
new ChangeInitialCaseOfIdentifierInDeclaration(newIdentifier, change);
if (!proposals.contains(proposal)) {
proposals.add(proposal);
}
}