public static String buildCollectionText(PsiForStatement forStatement) {
PsiStatement body = forStatement.getBody();
while (body instanceof PsiBlockStatement) {
final PsiBlockStatement blockStatement = (PsiBlockStatement) body;
final PsiCodeBlock codeBlock = blockStatement.getCodeBlock();
final PsiStatement[] statements = codeBlock.getStatements();
if (statements.length == 2) {
body = statements[1];
} else if (statements.length == 1) {
body = statements[0];
} else {
return null;
}
}
if (!(body instanceof PsiExpressionStatement)) {
return null;
}
final PsiExpressionStatement expressionStatement = (PsiExpressionStatement) body;
final PsiExpression expression = expressionStatement.getExpression();
if (!(expression instanceof PsiMethodCallExpression)) {
return null;
}
final PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) expression;
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiElement qualifier = methodExpression.getQualifier();
if (qualifier == null) {
// fixme for when the array is added to 'this'
return null;
}
return qualifier.getText();
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression call) {
super.visitMethodCallExpression(call);
final PsiReferenceExpression methodExpression = call.getMethodExpression();
final PsiElement qualifier = methodExpression.getQualifier();
if (!(qualifier instanceof PsiReferenceExpression)) {
return;
}
final PsiMethod method = call.resolveMethod();
if (method == null) {
return;
}
if (!method.hasModifierProperty(PsiModifier.STATIC)) {
return;
}
final PsiElement referent = ((PsiReference) qualifier).resolve();
if (!(referent instanceof PsiClass)) {
return;
}
final PsiClass referencedClass = (PsiClass) referent;
final PsiClass declaringClass = method.getContainingClass();
if (declaringClass == null) {
return;
}
if (declaringClass.equals(referencedClass)) {
return;
}
final PsiClass containingClass = ClassUtils.getContainingClass(call);
if (!ClassUtils.isClassVisibleFromClass(containingClass, declaringClass)) {
return;
}
registerMethodCallError(call, declaringClass, referencedClass);
}
public static int getPrecedence(PsiExpression expression) {
if (expression instanceof PsiThisExpression
|| expression instanceof PsiLiteralExpression
|| expression instanceof PsiSuperExpression
|| expression instanceof PsiClassObjectAccessExpression
|| expression instanceof PsiArrayAccessExpression
|| expression instanceof PsiArrayInitializerExpression) {
return LITERAL_PRECEDENCE;
}
if (expression instanceof PsiReferenceExpression) {
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) expression;
if (referenceExpression.getQualifier() != null) {
return METHOD_CALL_PRECEDENCE;
} else {
return LITERAL_PRECEDENCE;
}
}
if (expression instanceof PsiMethodCallExpression || expression instanceof PsiNewExpression) {
return METHOD_CALL_PRECEDENCE;
}
if (expression instanceof PsiTypeCastExpression) {
return TYPE_CAST_PRECEDENCE;
}
if (expression instanceof PsiPrefixExpression) {
return PREFIX_PRECEDENCE;
}
if (expression instanceof PsiPostfixExpression) {
return POSTFIX_PRECEDENCE;
}
if (expression instanceof PsiPolyadicExpression) {
final PsiPolyadicExpression polyadicExpression = (PsiPolyadicExpression) expression;
return getPrecedenceForOperator(polyadicExpression.getOperationTokenType());
}
if (expression instanceof PsiInstanceOfExpression) {
return RELATIONAL_PRECEDENCE;
}
if (expression instanceof PsiConditionalExpression) {
return CONDITIONAL_PRECEDENCE;
}
if (expression instanceof PsiAssignmentExpression) {
return ASSIGNMENT_PRECEDENCE;
}
if (expression instanceof PsiParenthesizedExpression) {
return PARENTHESIZED_PRECEDENCE;
}
return -1;
}
@Nullable
private static LookupElementWeigher preferStatics(
PsiElement position, final ExpectedTypeInfo[] infos) {
if (PsiTreeUtil.getParentOfType(position, PsiDocComment.class) != null) {
return null;
}
if (position.getParent() instanceof PsiReferenceExpression) {
final PsiReferenceExpression refExpr = (PsiReferenceExpression) position.getParent();
final PsiElement qualifier = refExpr.getQualifier();
if (qualifier == null) {
return null;
}
if (!(qualifier instanceof PsiJavaCodeReferenceElement)
|| !(((PsiJavaCodeReferenceElement) qualifier).resolve() instanceof PsiClass)) {
return null;
}
}
return new LookupElementWeigher("statics") {
@NotNull
@Override
public Comparable weigh(@NotNull LookupElement element) {
final Object o = element.getObject();
if (o instanceof PsiKeyword) return -3;
if (!(o instanceof PsiMember)
|| element.getUserData(JavaGenerateMemberCompletionContributor.GENERATE_ELEMENT)
!= null) {
return 0;
}
if (((PsiMember) o).hasModifierProperty(PsiModifier.STATIC) && !hasNonVoid(infos)) {
if (o instanceof PsiMethod) return -5;
if (o instanceof PsiField) return -4;
}
if (o instanceof PsiClass) return -3;
// instance method or field
return -5;
}
};
}
@Nullable
private static LookupElementWeigher preferStatics(PsiElement position) {
if (PsiTreeUtil.getParentOfType(position, PsiDocComment.class) != null) {
return null;
}
if (position.getParent() instanceof PsiReferenceExpression) {
final PsiReferenceExpression refExpr = (PsiReferenceExpression) position.getParent();
final PsiElement qualifier = refExpr.getQualifier();
if (qualifier == null) {
return null;
}
if (!(qualifier instanceof PsiJavaCodeReferenceElement)
|| !(((PsiJavaCodeReferenceElement) qualifier).resolve() instanceof PsiClass)) {
return null;
}
}
return new LookupElementWeigher("statics") {
@NotNull
@Override
public Comparable weigh(@NotNull LookupElement element) {
final Object o = element.getObject();
if (o instanceof PsiKeyword) return -3;
if (!(o instanceof PsiMember)) return 0;
if (((PsiMember) o).hasModifierProperty(PsiModifier.STATIC)) {
if (o instanceof PsiMethod) return -5;
if (o instanceof PsiField) return -4;
}
if (o instanceof PsiClass) return -3;
// instance method or field
return -5;
}
};
}
@Nullable
private static String getCollectionsAddAllText(PsiForeachStatement foreachStatement)
throws IncorrectOperationException {
final PsiStatement body = getBody(foreachStatement);
if (!(body instanceof PsiExpressionStatement)) {
return null;
}
final PsiExpressionStatement expressionStatement = (PsiExpressionStatement) body;
final PsiMethodCallExpression methodCallExpression =
(PsiMethodCallExpression) expressionStatement.getExpression();
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiElement collection = methodExpression.getQualifier();
if (collection == null) {
// fixme for when the array is added to 'this'
return null;
}
final String collectionText = collection.getText();
final PsiExpression iteratedValue = foreachStatement.getIteratedValue();
if (iteratedValue == null) {
return null;
}
final String arrayText = iteratedValue.getText();
@NonNls final StringBuilder buffer = new StringBuilder();
if (PsiUtil.isLanguageLevel5OrHigher(foreachStatement)) {
buffer.append("java.util.Collections.addAll(");
buffer.append(collectionText);
buffer.append(',');
buffer.append(arrayText);
buffer.append(");");
} else {
buffer.append(collectionText);
buffer.append(".addAll(java.util.Arrays.asList(");
buffer.append(arrayText);
buffer.append("));");
}
return buffer.toString();
}