private boolean isTrivial(PsiMethod method) {
final PsiCodeBlock body = method.getBody();
if (body == null) {
return true;
}
final PsiStatement[] statements = body.getStatements();
if (statements.length == 0) {
return true;
}
final Project project = method.getProject();
final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project);
final PsiConstantEvaluationHelper evaluationHelper = psiFacade.getConstantEvaluationHelper();
for (PsiStatement statement : statements) {
if (!(statement instanceof PsiIfStatement)) {
return false;
}
final PsiIfStatement ifStatement = (PsiIfStatement) statement;
final PsiExpression condition = ifStatement.getCondition();
final Object result = evaluationHelper.computeConstantExpression(condition);
if (result == null || !result.equals(Boolean.FALSE)) {
return false;
}
}
return true;
}
private static boolean canCallMethodsInConstructors(PsiClass aClass, boolean virtual) {
for (PsiMethod constructor : aClass.getConstructors()) {
if (!constructor.getLanguage().isKindOf(JavaLanguage.INSTANCE)) return true;
PsiCodeBlock body = constructor.getBody();
if (body == null) continue;
for (PsiMethodCallExpression call :
SyntaxTraverser.psiTraverser().withRoot(body).filter(PsiMethodCallExpression.class)) {
PsiReferenceExpression methodExpression = call.getMethodExpression();
if (methodExpression instanceof PsiThisExpression
|| methodExpression instanceof PsiSuperExpression) continue;
if (!virtual) return true;
PsiMethod target = call.resolveMethod();
if (target != null && PsiUtil.canBeOverriden(target)) return true;
}
}
return false;
}
private static String computeConstantSuperCtorCallParameter(
PsiClass languagePsiClass, int index) {
if (languagePsiClass instanceof PsiAnonymousClass) {
return getStringConstantExpression(
((PsiAnonymousClass) languagePsiClass).getArgumentList(), index);
}
PsiMethod defaultConstructor = null;
for (PsiMethod constructor : languagePsiClass.getConstructors()) {
if (constructor.getParameterList().getParametersCount() == 0) {
defaultConstructor = constructor;
break;
}
}
if (defaultConstructor == null) {
return null;
}
final PsiCodeBlock body = defaultConstructor.getBody();
if (body == null) {
return null;
}
final PsiStatement[] statements = body.getStatements();
if (statements.length < 1) {
return null;
}
// super() must be first
PsiStatement statement = statements[0];
if (!(statement instanceof PsiExpressionStatement)) {
return null;
}
PsiExpression expression = ((PsiExpressionStatement) statement).getExpression();
if (!(expression instanceof PsiMethodCallExpression)) {
return null;
}
PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) expression;
PsiExpressionList expressionList = methodCallExpression.getArgumentList();
return getStringConstantExpression(expressionList, index);
}
public static void prepareWizardData(final WizardData data, PsiClass boundClass)
throws MyException {
final PsiMethod[] allGetDataMethods = boundClass.findMethodsByName("getData", false);
final PsiMethod[] allSetDataMethods = boundClass.findMethodsByName("setData", false);
PsiMethod setDataMethod = null;
PsiClass beanClass = null;
// find get/set pair and bean class
outer:
for (int i = 0; i < allGetDataMethods.length; i++) {
final PsiMethod _getMethod = allGetDataMethods[i];
if (_getMethod.getReturnType() != PsiType.VOID) {
continue;
}
final PsiParameter[] _getMethodParameters = _getMethod.getParameterList().getParameters();
if (_getMethodParameters.length != 1) {
continue;
}
final PsiClass _getParameterClass = getClassByType(_getMethodParameters[0].getType());
if (_getParameterClass == null) {
continue;
}
for (final PsiMethod _setMethod : allSetDataMethods) {
if (_setMethod.getReturnType() != PsiType.VOID) {
continue;
}
final PsiParameter[] _setMethodParameters = _setMethod.getParameterList().getParameters();
if (_setMethodParameters.length != 1) {
continue;
}
final PsiClass _setParameterClass = getClassByType(_setMethodParameters[0].getType());
if (_setParameterClass != _getParameterClass) {
continue;
}
// pair found !!!
setDataMethod = _setMethod;
beanClass = _getParameterClass;
break outer;
}
}
if (beanClass == null) {
// nothing found
return;
}
data.myBindToNewBean = false;
data.myBeanClass = beanClass;
// parse setData() and try to associate fields with bean
{
final PsiCodeBlock body = setDataMethod.getBody();
if (body == null) {
return;
}
final PsiElement[] children = body.getChildren();
for (PsiElement child : children) {
// Parses sequences like: a.foo(b.bar());
final PsiField bindingField;
if (!(child instanceof PsiExpressionStatement)) {
continue;
}
final PsiExpression expression = ((PsiExpressionStatement) child).getExpression();
if (!(expression instanceof PsiMethodCallExpression)) {
continue;
}
final PsiMethodCallExpression callExpression = (PsiMethodCallExpression) expression;
// find binding field ('a')
int index = -1;
{
final PsiElement psiElement = getObjectForWhichMethodWasCalled(callExpression);
if (!(psiElement instanceof PsiField)) {
continue;
}
if (((PsiField) psiElement).getContainingClass() != boundClass) {
continue;
}
bindingField = (PsiField) psiElement;
// find binding for this field
final FormProperty2BeanProperty[] bindings = data.myBindings;
for (int j = 0; j < bindings.length; j++) {
final FormProperty2BeanProperty binding = bindings[j];
if (bindingField
.getName()
.equals(binding.myFormProperty.getLwComponent().getBinding())) {
index = j;
break;
}
}
}
if (index == -1) {
continue;
}
// find 'bar()'
{
final PsiReferenceParameterList parameterList =
callExpression.getMethodExpression().getParameterList();
if (parameterList == null) {
continue;
}
final PsiExpressionList argumentList = callExpression.getArgumentList();
if (argumentList == null) {
continue;
}
final PsiExpression[] expressions = argumentList.getExpressions();
if (expressions == null || expressions.length != 1) {
continue;
}
if (!(expressions[0] instanceof PsiMethodCallExpression)) {
continue;
}
final PsiMethodCallExpression callExpression2 =
((PsiMethodCallExpression) expressions[0]);
// check that 'b' is parameter
final PsiElement psiElement = getObjectForWhichMethodWasCalled(callExpression2);
if (!(psiElement instanceof PsiParameter)) {
continue;
}
final PsiMethod barMethod = ((PsiMethod) callExpression2.getMethodExpression().resolve());
if (barMethod == null) {
continue;
}
if (!PropertyUtil.isSimplePropertyGetter(barMethod)) {
continue;
}
final String propertyName = PropertyUtil.getPropertyName(barMethod);
// There are two possible types: boolean and java.lang.String
String typeName = barMethod.getReturnType().getCanonicalText();
if (!"boolean".equals(typeName) && !"java.lang.String".equals(typeName)) {
continue;
}
data.myBindings[index].myBeanProperty = new BeanProperty(propertyName, typeName);
}
}
}
}