@NotNull
private static PsiExpression getTopLevel(Project project, @NotNull PsiExpression expression) {
int i = 0;
while (expression.getParent() instanceof PsiExpression) {
i++;
final PsiExpression parent = (PsiExpression) expression.getParent();
if (parent instanceof PsiConditionalExpression
&& ((PsiConditionalExpression) parent).getCondition() == expression) break;
expression = parent;
if (expression instanceof PsiAssignmentExpression) break;
if (i > 10 && expression instanceof PsiBinaryExpression) {
ParameterizedCachedValue<PsiExpression, Pair<Project, PsiExpression>> value =
expression.getUserData(TOP_LEVEL_EXPRESSION);
if (value != null && value.hasUpToDateValue()) {
return getToplevelExpression(
project, expression); // optimization: use caching for big hierarchies
}
}
}
return expression;
}
@NotNull
public static PsiExpression getToplevelExpression(
@NotNull final Project project, @NotNull final PsiExpression expression) {
if (expression instanceof PsiBinaryExpression
|| expression.getParent() instanceof PsiBinaryExpression) { // can be large, cache
return CachedValuesManager.getManager(project)
.getParameterizedCachedValue(
expression,
TOP_LEVEL_EXPRESSION,
TOP_LEVEL_PROVIDER,
true,
Pair.create(project, expression));
}
return getTopLevel(project, expression);
}
public static boolean isPassedToAnnotatedParam(
@NotNull Project project,
@NotNull PsiExpression expression,
final String annFqn,
@Nullable Map<String, Object> annotationAttributeValues,
@Nullable final Set<PsiModifierListOwner> nonNlsTargets) {
expression = getToplevelExpression(project, expression);
final PsiElement parent = expression.getParent();
if (!(parent instanceof PsiExpressionList)) return false;
int idx = -1;
final PsiExpression[] args = ((PsiExpressionList) parent).getExpressions();
for (int i = 0; i < args.length; i++) {
PsiExpression arg = args[i];
if (PsiTreeUtil.isAncestor(arg, expression, false)) {
idx = i;
break;
}
}
if (idx == -1) return false;
PsiElement grParent = parent.getParent();
if (grParent instanceof PsiAnonymousClass) {
grParent = grParent.getParent();
}
if (grParent instanceof PsiCall) {
PsiMethod method = ((PsiCall) grParent).resolveMethod();
if (method != null
&& isMethodParameterAnnotatedWith(
method, idx, null, annFqn, annotationAttributeValues, nonNlsTargets)) {
return true;
}
}
return false;
}
private NamesByExprInfo suggestVariableNameByExpressionPlace(
PsiExpression expr, final VariableKind variableKind, boolean correctKeywords) {
if (expr.getParent() instanceof PsiExpressionList) {
PsiExpressionList list = (PsiExpressionList) expr.getParent();
PsiElement listParent = list.getParent();
PsiSubstitutor subst = PsiSubstitutor.EMPTY;
PsiMethod method = null;
if (listParent instanceof PsiMethodCallExpression) {
final JavaResolveResult resolveResult =
((PsiMethodCallExpression) listParent).getMethodExpression().advancedResolve(false);
method = (PsiMethod) resolveResult.getElement();
subst = resolveResult.getSubstitutor();
} else {
if (listParent instanceof PsiAnonymousClass) {
listParent = listParent.getParent();
}
if (listParent instanceof PsiNewExpression) {
method = ((PsiNewExpression) listParent).resolveConstructor();
}
}
if (method != null) {
final PsiElement navElement = method.getNavigationElement();
if (navElement instanceof PsiMethod) {
method = (PsiMethod) navElement;
}
PsiExpression[] expressions = list.getExpressions();
int index = -1;
for (int i = 0; i < expressions.length; i++) {
if (expressions[i] == expr) {
index = i;
break;
}
}
PsiParameter[] parameters = method.getParameterList().getParameters();
if (index < parameters.length) {
String name = parameters[index].getName();
if (name != null
&& TypeConversionUtil.areTypesAssignmentCompatible(
subst.substitute(parameters[index].getType()), expr)) {
name = variableNameToPropertyName(name, VariableKind.PARAMETER);
String[] names = getSuggestionsByName(name, variableKind, false, correctKeywords);
if (expressions.length == 1) {
final String methodName = method.getName();
String[] words = NameUtil.nameToWords(methodName);
if (words.length > 0) {
final String firstWord = words[0];
if (SET_PREFIX.equals(firstWord)) {
final String propertyName = methodName.substring(firstWord.length());
final String[] setterNames =
getSuggestionsByName(propertyName, variableKind, false, correctKeywords);
names = ArrayUtil.mergeArrays(names, setterNames);
}
}
}
return new NamesByExprInfo(name, names);
}
}
}
} else if (expr.getParent() instanceof PsiAssignmentExpression
&& variableKind == VariableKind.PARAMETER) {
final PsiAssignmentExpression assignmentExpression =
(PsiAssignmentExpression) expr.getParent();
if (expr == assignmentExpression.getRExpression()) {
final PsiExpression leftExpression = assignmentExpression.getLExpression();
if (leftExpression instanceof PsiReferenceExpression
&& ((PsiReferenceExpression) leftExpression).getQualifier() == null) {
String name = leftExpression.getText();
if (name != null) {
final PsiElement resolve = ((PsiReferenceExpression) leftExpression).resolve();
if (resolve instanceof PsiVariable) {
name = variableNameToPropertyName(name, getVariableKind((PsiVariable) resolve));
}
String[] names = getSuggestionsByName(name, variableKind, false, correctKeywords);
return new NamesByExprInfo(name, names);
}
}
}
}
return new NamesByExprInfo(null, ArrayUtil.EMPTY_STRING_ARRAY);
}