private boolean checkConstantValueVariableUse(
@Nullable PsiExpression expression,
@NotNull PsiExpression constantExpression,
@NotNull PsiElement body) {
final PsiType constantType = constantExpression.getType();
if (PsiType.DOUBLE.equals(constantType)) {
final Object result = ExpressionUtils.computeConstantExpression(constantExpression, false);
if (Double.valueOf(0.0).equals(result) || Double.valueOf(-0.0).equals(result)) {
return false;
}
}
if (!(expression instanceof PsiReferenceExpression)) {
return false;
}
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) expression;
final PsiElement target = referenceExpression.resolve();
if (!(target instanceof PsiVariable)) {
return false;
}
if (target instanceof PsiField) {
return false;
}
final PsiVariable variable = (PsiVariable) target;
final VariableReadVisitor visitor = new VariableReadVisitor(variable);
body.accept(visitor);
if (!visitor.isRead()) {
return false;
}
registerError(visitor.getReference(), constantExpression);
return true;
}
public static boolean isAssociativeOperation(PsiPolyadicExpression expression) {
final IElementType tokenType = expression.getOperationTokenType();
final PsiType type = expression.getType();
final PsiPrimitiveType primitiveType;
if (type instanceof PsiClassType) {
primitiveType = PsiPrimitiveType.getUnboxedType(type);
if (primitiveType == null) {
return false;
}
} else if (type instanceof PsiPrimitiveType) {
primitiveType = (PsiPrimitiveType) type;
} else {
return false;
}
if (JavaTokenType.PLUS == tokenType || JavaTokenType.ASTERISK == tokenType) {
return !PsiType.FLOAT.equals(primitiveType) && !PsiType.DOUBLE.equals(primitiveType);
} else if (JavaTokenType.EQEQ == tokenType || JavaTokenType.NE == tokenType) {
return PsiType.BOOLEAN.equals(primitiveType);
} else if (JavaTokenType.AND == tokenType
|| JavaTokenType.OR == tokenType
|| JavaTokenType.XOR == tokenType) {
return true;
} else if (JavaTokenType.OROR == tokenType || JavaTokenType.ANDAND == tokenType) {
return true;
}
return false;
}
private static boolean isValueOfCall(PsiMethodCallExpression methodCallExpression) {
final PsiExpressionList argumentList = methodCallExpression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length != 1) {
return false;
}
final PsiExpression argument = arguments[0];
final PsiType type = argument.getType();
return (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_INTEGER,
null,
"valueOf",
PsiType.INT)
&& PsiType.INT.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_SHORT,
null,
"valueOf",
PsiType.SHORT)
&& PsiType.SHORT.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_BYTE,
null,
"valueOf",
PsiType.BYTE)
&& PsiType.BYTE.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_LONG,
null,
"valueOf",
PsiType.LONG)
&& PsiType.LONG.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_CHARACTER,
null,
"valueOf",
PsiType.CHAR)
&& PsiType.CHAR.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_DOUBLE,
null,
"valueOf",
PsiType.DOUBLE)
&& PsiType.DOUBLE.equals(type))
|| (MethodCallUtils.isCallToMethod(
methodCallExpression,
CommonClassNames.JAVA_LANG_FLOAT,
null,
"valueOf",
PsiType.FLOAT)
&& PsiType.FLOAT.equals(type));
}
/**
* Sets the basic element information from the given type.
*
* @param element the element to set information from the type
* @param factory
* @param type the type
* @param modifiers modifier list
* @since 2.15
*/
private static void setElementInfo(
AbstractElement element, PsiElementFactory factory, PsiType type, PsiModifierList modifiers) {
// type names
element.setTypeName(PsiAdapter.getTypeClassName(type));
element.setTypeQualifiedName(PsiAdapter.getTypeQualifiedClassName(type));
element.setType(type.getCanonicalText());
// arrays, collections and maps types
if (PsiAdapter.isObjectArrayType(type)) {
element.setObjectArray(true);
element.setArray(true);
// additional specify if the element is a string array
if (PsiAdapter.isStringArrayType(type)) element.setStringArray(true);
} else if (PsiAdapter.isPrimitiveArrayType(type)) {
element.setPrimitiveArray(true);
element.setArray(true);
}
if (PsiAdapter.isCollectionType(factory, type)) element.setCollection(true);
if (PsiAdapter.isListType(factory, type)) element.setList(true);
if (PsiAdapter.isSetType(factory, type)) element.setSet(true);
if (PsiAdapter.isMapType(factory, type)) element.setMap(true);
// other types
if (PsiAdapter.isPrimitiveType(type)) element.setPrimitive(true);
if (PsiAdapter.isObjectType(factory, type)) element.setObject(true);
if (PsiAdapter.isStringType(factory, type)) element.setString(true);
if (PsiAdapter.isNumericType(factory, type)) element.setNumeric(true);
if (PsiAdapter.isDateType(factory, type)) element.setDate(true);
if (PsiAdapter.isCalendarType(factory, type)) element.setCalendar(true);
if (PsiAdapter.isBooleanType(factory, type)) element.setBoolean(true);
if (PsiType.VOID.equals(type)) element.setVoid(true);
if (PsiType.LONG.equals(type)) element.setLong(true);
if (PsiType.FLOAT.equals(type)) element.setFloat(true);
if (PsiType.DOUBLE.equals(type)) element.setDouble(true);
if (PsiType.BYTE.equals(type)) element.setByte(true);
if (PsiType.CHAR.equals(type)) element.setChar(true);
if (PsiType.SHORT.equals(type)) element.setShort(true);
element.setNestedArray(PsiAdapter.isNestedArray(type));
// modifiers
if (modifiers != null) {
if (modifiers.hasModifierProperty(PsiModifier.STATIC)) element.setModifierStatic(true);
if (modifiers.hasModifierProperty(PsiModifier.FINAL)) element.setModifierFinal(true);
if (modifiers.hasModifierProperty(PsiModifier.PUBLIC)) {
element.setModifierPublic(true);
} else if (modifiers.hasModifierProperty(PsiModifier.PROTECTED)) {
element.setModifierProtected(true);
} else if (modifiers.hasModifierProperty(PsiModifier.PACKAGE_LOCAL)) {
element.setModifierPackageLocal(true);
} else if (modifiers.hasModifierProperty(PsiModifier.PRIVATE))
element.setModifierPrivate(true);
}
}