private RefactoringStatus checkExpressionFragmentIsRValue() throws JavaScriptModelException {
/* Moved this functionality to Checks, to allow sharing with
ExtractTempRefactoring, others */
switch (Checks.checkExpressionIsRValue(getSelectedExpression().getAssociatedExpression())) {
case Checks.NOT_RVALUE_MISC:
return RefactoringStatus.createStatus(
RefactoringStatus.FATAL,
RefactoringCoreMessages.ExtractConstantRefactoring_select_expression,
null,
Corext.getPluginId(),
RefactoringStatusCodes.EXPRESSION_NOT_RVALUE,
null);
case Checks.NOT_RVALUE_VOID:
return RefactoringStatus.createStatus(
RefactoringStatus.FATAL,
RefactoringCoreMessages.ExtractConstantRefactoring_no_void,
null,
Corext.getPluginId(),
RefactoringStatusCodes.EXPRESSION_NOT_RVALUE_VOID,
null);
case Checks.IS_RVALUE:
return new RefactoringStatus();
default:
Assert.isTrue(false);
return null;
}
}
public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
try {
pm.beginTask("", 7); // $NON-NLS-1$
RefactoringStatus result = Checks.validateEdit(fCu, getValidationContext());
if (result.hasFatalError()) return result;
pm.worked(1);
if (fCuRewrite == null) {
JavaScriptUnit cuNode =
RefactoringASTParser.parseWithASTProvider(fCu, true, new SubProgressMonitor(pm, 3));
fCuRewrite = new CompilationUnitRewrite(fCu, cuNode);
} else {
pm.worked(3);
}
result.merge(checkSelection(new SubProgressMonitor(pm, 3)));
if (result.hasFatalError()) return result;
if (isLiteralNodeSelected()) fReplaceAllOccurrences = false;
return result;
} finally {
pm.done();
}
}
/**
* This method performs checks on the constant name which are quick enough to be performed every
* time the ui input component contents are changed.
*
* @return return the resulting status
* @throws JavaScriptModelException thrown when the operation could not be executed
*/
public RefactoringStatus checkConstantNameOnChange() throws JavaScriptModelException {
if (Arrays.asList(getExcludedVariableNames()).contains(fConstantName))
return RefactoringStatus.createErrorStatus(
Messages.format(
RefactoringCoreMessages.ExtractConstantRefactoring_another_variable,
getConstantName()));
return Checks.checkConstantName(getConstantName());
}
private IExpressionFragment getSelectedExpression() throws JavaScriptModelException {
if (fSelectedExpression != null) return fSelectedExpression;
IASTFragment selectedFragment =
ASTFragmentFactory.createFragmentForSourceRange(
new SourceRange(fSelectionStart, fSelectionLength), fCuRewrite.getRoot(), fCu);
if (selectedFragment instanceof IExpressionFragment
&& !Checks.isInsideJavadoc(selectedFragment.getAssociatedNode())) {
fSelectedExpression = (IExpressionFragment) selectedFragment;
}
return fSelectedExpression;
}