001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.diagnostics;
018    
019    import com.google.common.collect.ImmutableSet;
020    import com.intellij.openapi.util.TextRange;
021    import com.intellij.psi.PsiElement;
022    import com.intellij.psi.impl.source.tree.LeafPsiElement;
023    import org.jetbrains.annotations.NotNull;
024    import org.jetbrains.kotlin.descriptors.*;
025    import org.jetbrains.kotlin.lexer.JetKeywordToken;
026    import org.jetbrains.kotlin.lexer.JetModifierKeywordToken;
027    import org.jetbrains.kotlin.lexer.JetTokens;
028    import org.jetbrains.kotlin.name.Name;
029    import org.jetbrains.kotlin.psi.*;
030    import org.jetbrains.kotlin.resolve.calls.inference.InferenceErrorData;
031    import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall;
032    import org.jetbrains.kotlin.resolve.varianceChecker.VarianceChecker.VarianceConflictDiagnosticData;
033    import org.jetbrains.kotlin.types.JetType;
034    
035    import java.lang.reflect.Field;
036    import java.lang.reflect.Modifier;
037    import java.util.Collection;
038    import java.util.List;
039    
040    import static org.jetbrains.kotlin.diagnostics.PositioningStrategies.*;
041    import static org.jetbrains.kotlin.diagnostics.Severity.ERROR;
042    import static org.jetbrains.kotlin.diagnostics.Severity.WARNING;
043    
044    /**
045     * For error messages, see DefaultErrorMessages and IdeErrorMessages.
046     */
047    public interface Errors {
048    
049        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
050    
051        // Meta-errors: unsupported features, failure
052    
053        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
054    
055        DiagnosticFactory1<PsiElement, String> UNSUPPORTED = DiagnosticFactory1.create(ERROR);
056        DiagnosticFactory1<PsiElement, Throwable> EXCEPTION_FROM_ANALYZER = DiagnosticFactory1.create(ERROR);
057    
058        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
059    
060        // Generic errors/warnings: applicable in many contexts
061    
062        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
063    
064        DiagnosticFactory1<PsiElement, String> REDECLARATION = DiagnosticFactory1.create(ERROR, FOR_REDECLARATION);
065    
066        DiagnosticFactory1<JetReferenceExpression, JetReferenceExpression> UNRESOLVED_REFERENCE =
067                DiagnosticFactory1.create(ERROR, FOR_UNRESOLVED_REFERENCE);
068    
069        //Elements with "INVISIBLE_REFERENCE" error are marked as unresolved, unlike elements with "INVISIBLE_MEMBER" error
070        //"INVISIBLE_REFERENCE" is used for invisible classes references and references in import
071        DiagnosticFactory3<JetSimpleNameExpression, DeclarationDescriptor, Visibility, DeclarationDescriptor> INVISIBLE_REFERENCE =
072                DiagnosticFactory3.create(ERROR);
073        DiagnosticFactory3<PsiElement, DeclarationDescriptor, Visibility, DeclarationDescriptor> INVISIBLE_MEMBER = DiagnosticFactory3.create(ERROR, CALL_ELEMENT);
074        DiagnosticFactory3<PsiElement, DeclarationDescriptor, Visibility, JetFile> ACCESS_TO_PRIVATE_TOP_LEVEL_FROM_ANOTHER_FILE = DiagnosticFactory3.create(WARNING, CALL_ELEMENT);
075    
076        DiagnosticFactory1<JetElement, Collection<ClassDescriptor>> PLATFORM_CLASS_MAPPED_TO_KOTLIN = DiagnosticFactory1.create(WARNING);
077    
078        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
079    
080        // Errors/warnings in types
081        // Note: class/trait declaration is NOT a type. A type is something that may be written on the right-hand side of ":"
082    
083        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
084    
085        DiagnosticFactory0<JetTypeProjection> PROJECTION_ON_NON_CLASS_TYPE_ARGUMENT = DiagnosticFactory0.create(ERROR, VARIANCE_IN_PROJECTION);
086        DiagnosticFactory2<JetTypeReference, JetType, JetType> UPPER_BOUND_VIOLATED = DiagnosticFactory2.create(ERROR);
087        DiagnosticFactory0<JetNullableType> REDUNDANT_NULLABLE = DiagnosticFactory0.create(WARNING, NULLABLE_TYPE);
088        DiagnosticFactory1<JetNullableType, JetType> BASE_WITH_NULLABLE_UPPER_BOUND = DiagnosticFactory1.create(WARNING, NULLABLE_TYPE);
089        DiagnosticFactory1<JetElement, Integer> WRONG_NUMBER_OF_TYPE_ARGUMENTS = DiagnosticFactory1.create(ERROR);
090        DiagnosticFactory2<JetTypeReference, Integer, String> NO_TYPE_ARGUMENTS_ON_RHS = DiagnosticFactory2.create(ERROR);
091        DiagnosticFactory1<JetTypeProjection, ClassifierDescriptor> CONFLICTING_PROJECTION = DiagnosticFactory1.create(ERROR, VARIANCE_IN_PROJECTION);
092        DiagnosticFactory1<JetTypeProjection, ClassifierDescriptor> REDUNDANT_PROJECTION = DiagnosticFactory1.create(WARNING, VARIANCE_IN_PROJECTION);
093        DiagnosticFactory1<PsiElement, VarianceConflictDiagnosticData> TYPE_VARIANCE_CONFLICT =
094                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE_OR_DEFAULT);
095    
096        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
097    
098        // Errors in declarations
099    
100        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
101    
102        // Imports
103    
104        DiagnosticFactory1<JetSimpleNameExpression, DeclarationDescriptor> CANNOT_IMPORT_FROM_ELEMENT = DiagnosticFactory1.create(ERROR);
105        DiagnosticFactory1<JetSimpleNameExpression, ClassDescriptor> CANNOT_IMPORT_ON_DEMAND_FROM_SINGLETON = DiagnosticFactory1.create(ERROR);
106        DiagnosticFactory1<JetSimpleNameExpression, DeclarationDescriptor> CANNOT_BE_IMPORTED = DiagnosticFactory1.create(ERROR);
107    
108        DiagnosticFactory1<JetExpression, String> CONFLICTING_IMPORT = DiagnosticFactory1.create(ERROR);
109    
110        // Modifiers
111    
112        DiagnosticFactory2<PsiElement, JetModifierKeywordToken, JetModifierKeywordToken> INCOMPATIBLE_MODIFIERS = DiagnosticFactory2.create(ERROR);
113        DiagnosticFactory1<PsiElement, JetModifierKeywordToken> REPEATED_MODIFIER = DiagnosticFactory1.create(ERROR);
114        DiagnosticFactory2<PsiElement, JetModifierKeywordToken, JetModifierKeywordToken> REDUNDANT_MODIFIER = DiagnosticFactory2.create(WARNING);
115        DiagnosticFactory2<PsiElement, JetModifierKeywordToken, String> WRONG_MODIFIER_TARGET = DiagnosticFactory2.create(ERROR);
116        DiagnosticFactory2<PsiElement, JetModifierKeywordToken, String> REDUNDANT_MODIFIER_FOR_TARGET = DiagnosticFactory2.create(WARNING);
117        DiagnosticFactory2<PsiElement, JetModifierKeywordToken, String> WRONG_MODIFIER_CONTAINING_DECLARATION = DiagnosticFactory2.create(ERROR);
118        DiagnosticFactory1<JetAnnotationEntry, String> WRONG_ANNOTATION_TARGET = DiagnosticFactory1.create(ERROR);
119        DiagnosticFactory2<JetAnnotationEntry, String, String> WRONG_ANNOTATION_TARGET_WITH_USE_SITE_TARGET = DiagnosticFactory2.create(ERROR);
120        DiagnosticFactory0<JetAnnotationEntry> REPEATED_ANNOTATION = DiagnosticFactory0.create(ERROR);
121    
122        // Annotations
123    
124        DiagnosticFactory0<JetDelegationSpecifierList> SUPERTYPES_FOR_ANNOTATION_CLASS = DiagnosticFactory0.create(ERROR);
125        DiagnosticFactory0<JetParameter> MISSING_VAL_ON_ANNOTATION_PARAMETER = DiagnosticFactory0.create(ERROR);
126        DiagnosticFactory0<JetCallExpression> ANNOTATION_CLASS_CONSTRUCTOR_CALL = DiagnosticFactory0.create(ERROR);
127        DiagnosticFactory1<JetAnnotationEntry, DeclarationDescriptor> NOT_AN_ANNOTATION_CLASS = DiagnosticFactory1.create(ERROR);
128        DiagnosticFactory0<PsiElement> ANNOTATION_CLASS_WITH_BODY = DiagnosticFactory0.create(ERROR);
129        DiagnosticFactory0<JetTypeReference> INVALID_TYPE_OF_ANNOTATION_MEMBER = DiagnosticFactory0.create(ERROR);
130        DiagnosticFactory0<JetTypeReference> NULLABLE_TYPE_OF_ANNOTATION_MEMBER = DiagnosticFactory0.create(ERROR);
131        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_MUST_BE_CONST = DiagnosticFactory0.create(ERROR);
132        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_MUST_BE_KCLASS_LITERAL = DiagnosticFactory0.create(ERROR);
133        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_MUST_BE_ENUM_CONST = DiagnosticFactory0.create(ERROR);
134        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_DEFAULT_VALUE_MUST_BE_CONSTANT = DiagnosticFactory0.create(ERROR);
135    
136        DiagnosticFactory1<PsiElement, String> INAPPLICABLE_TARGET_ON_PROPERTY = DiagnosticFactory1.create(ERROR);
137        DiagnosticFactory0<PsiElement> INAPPLICABLE_FIELD_TARGET_NO_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
138        DiagnosticFactory0<PsiElement> INAPPLICABLE_TARGET_PROPERTY_IMMUTABLE = DiagnosticFactory0.create(ERROR);
139        DiagnosticFactory0<PsiElement> INAPPLICABLE_RECEIVER_TARGET = DiagnosticFactory0.create(ERROR);
140        DiagnosticFactory0<PsiElement> INAPPLICABLE_PARAM_TARGET = DiagnosticFactory0.create(ERROR);
141        DiagnosticFactory1<PsiElement, String> REDUNDANT_ANNOTATION_TARGET = DiagnosticFactory1.create(WARNING);
142    
143        DiagnosticFactory0<JetAnnotationEntry> DEPRECATED_UNESCAPED_ANNOTATION = DiagnosticFactory0.create(WARNING);
144        DiagnosticFactory0<PsiElement> DEPRECATED_ESCAPED_MODIFIER = DiagnosticFactory0.create(WARNING);
145        DiagnosticFactory1<JetAnnotationEntry, String> DEPRECATED_ANNOTATION_THAT_BECOMES_MODIFIER = DiagnosticFactory1.create(WARNING);
146        DiagnosticFactory0<JetAnnotationEntry> DEPRECATED_ANNOTATION_USE = DiagnosticFactory0.create(WARNING);
147    
148        // Classes and traits
149    
150        DiagnosticFactory0<JetTypeProjection> PROJECTION_IN_IMMEDIATE_ARGUMENT_TO_SUPERTYPE =
151                DiagnosticFactory0.create(ERROR, VARIANCE_IN_PROJECTION);
152    
153        DiagnosticFactory0<PsiElement> CYCLIC_INHERITANCE_HIERARCHY = DiagnosticFactory0.create(ERROR);
154    
155        DiagnosticFactory0<JetDelegatorToSuperClass> SUPERTYPE_NOT_INITIALIZED = DiagnosticFactory0.create(ERROR);
156    
157        DiagnosticFactory0<PsiElement> DEPRECATED_TRAIT_KEYWORD = DiagnosticFactory0.create(WARNING);
158        DiagnosticFactory0<JetTypeReference> DELEGATION_NOT_TO_TRAIT = DiagnosticFactory0.create(ERROR);
159        DiagnosticFactory0<JetTypeReference> SUPERTYPE_NOT_A_CLASS_OR_TRAIT = DiagnosticFactory0.create(ERROR);
160    
161        DiagnosticFactory0<PsiElement> NO_GENERICS_IN_SUPERTYPE_SPECIFIER = DiagnosticFactory0.create(ERROR);
162    
163        DiagnosticFactory0<JetTypeReference> MANY_CLASSES_IN_SUPERTYPE_LIST = DiagnosticFactory0.create(ERROR);
164        DiagnosticFactory0<JetTypeReference> SUPERTYPE_APPEARS_TWICE = DiagnosticFactory0.create(ERROR);
165        DiagnosticFactory3<JetDelegationSpecifierList, TypeParameterDescriptor, ClassDescriptor, Collection<JetType>>
166                INCONSISTENT_TYPE_PARAMETER_VALUES = DiagnosticFactory3.create(ERROR);
167    
168    
169        DiagnosticFactory0<JetTypeReference> FINAL_SUPERTYPE = DiagnosticFactory0.create(ERROR);
170        DiagnosticFactory0<JetTypeReference> SINGLETON_IN_SUPERTYPE = DiagnosticFactory0.create(ERROR);
171        DiagnosticFactory0<JetNullableType> NULLABLE_SUPERTYPE = DiagnosticFactory0.create(ERROR, NULLABLE_TYPE);
172        DiagnosticFactory0<JetTypeReference> DYNAMIC_SUPERTYPE = DiagnosticFactory0.create(ERROR);
173    
174        DiagnosticFactory0<JetElement> MISSING_CONSTRUCTOR_KEYWORD = DiagnosticFactory0.create(ERROR);
175    
176        // Secondary constructors
177    
178        DiagnosticFactory0<JetConstructorDelegationReferenceExpression> CYCLIC_CONSTRUCTOR_DELEGATION_CALL = DiagnosticFactory0.create(ERROR);
179    
180        DiagnosticFactory0<JetDeclaration> CONSTRUCTOR_IN_OBJECT = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
181        DiagnosticFactory0<JetDelegatorToSuperCall> SUPERTYPE_INITIALIZED_WITHOUT_PRIMARY_CONSTRUCTOR = DiagnosticFactory0.create(ERROR);
182    
183        DiagnosticFactory0<JetConstructorDelegationCall> PRIMARY_CONSTRUCTOR_DELEGATION_CALL_EXPECTED =
184                DiagnosticFactory0.create(ERROR, PositioningStrategies.SECONDARY_CONSTRUCTOR_DELEGATION_CALL);
185    
186        DiagnosticFactory0<JetConstructorDelegationReferenceExpression> DELEGATION_SUPER_CALL_IN_ENUM_CONSTRUCTOR =
187                DiagnosticFactory0.create(ERROR);
188    
189        DiagnosticFactory0<PsiElement> PRIMARY_CONSTRUCTOR_REQUIRED_FOR_DATA_CLASS = DiagnosticFactory0.create(ERROR);
190        DiagnosticFactory0<JetConstructorDelegationCall> EXPLICIT_DELEGATION_CALL_REQUIRED =
191                DiagnosticFactory0.create(ERROR, PositioningStrategies.SECONDARY_CONSTRUCTOR_DELEGATION_CALL);
192    
193        DiagnosticFactory1<PsiElement, DeclarationDescriptor> INSTANCE_ACCESS_BEFORE_SUPER_CALL = DiagnosticFactory1.create(ERROR);
194    
195        // Trait-specific
196    
197        DiagnosticFactory0<JetModifierListOwner> ABSTRACT_MODIFIER_IN_TRAIT = DiagnosticFactory0
198                .create(WARNING, ABSTRACT_MODIFIER);
199    
200        DiagnosticFactory0<JetDeclaration> CONSTRUCTOR_IN_TRAIT = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
201    
202        DiagnosticFactory0<PsiElement> SUPERTYPE_INITIALIZED_IN_TRAIT = DiagnosticFactory0.create(ERROR);
203    
204        DiagnosticFactory0<JetDelegatorByExpressionSpecifier> DELEGATION_IN_TRAIT = DiagnosticFactory0.create(ERROR);
205    
206        DiagnosticFactory0<PsiElement> TRAIT_WITH_SUPERCLASS = DiagnosticFactory0.create(ERROR);
207    
208        // Enum-specific
209    
210        DiagnosticFactory0<PsiElement> CLASS_IN_SUPERTYPE_FOR_ENUM = DiagnosticFactory0.create(ERROR);
211        DiagnosticFactory0<JetTypeParameterList> TYPE_PARAMETERS_IN_ENUM = DiagnosticFactory0.create(ERROR);
212        DiagnosticFactory0<JetClass> ENUM_ENTRY_SHOULD_BE_INITIALIZED = DiagnosticFactory0.create(ERROR);
213        DiagnosticFactory0<JetCallExpression> ENUM_CLASS_CONSTRUCTOR_CALL = DiagnosticFactory0.create(ERROR);
214    
215        // Sealed-specific
216        DiagnosticFactory0<JetCallExpression> SEALED_CLASS_CONSTRUCTOR_CALL = DiagnosticFactory0.create(ERROR);
217        DiagnosticFactory0<JetTypeReference> SEALED_SUPERTYPE = DiagnosticFactory0.create(ERROR);
218        DiagnosticFactory0<JetTypeReference> SEALED_SUPERTYPE_IN_LOCAL_CLASS = DiagnosticFactory0.create(ERROR);
219    
220        // Companion objects
221    
222        DiagnosticFactory0<JetObjectDeclaration> MANY_COMPANION_OBJECTS = DiagnosticFactory0.create(ERROR, COMPANION_OBJECT);
223    
224        DiagnosticFactory1<PsiElement, DeclarationDescriptor> DEPRECATED_SYMBOL = DiagnosticFactory1.create(WARNING);
225        DiagnosticFactory2<PsiElement, DeclarationDescriptor, String> DEPRECATED_SYMBOL_WITH_MESSAGE = DiagnosticFactory2.create(WARNING);
226        DiagnosticFactory1<JetSimpleNameExpression, ClassDescriptor> DEPRECATED_DECAPITALIZED_ANNOTATION = DiagnosticFactory1.create(WARNING);
227    
228        // Objects
229    
230        DiagnosticFactory1<JetObjectDeclaration, ClassDescriptor> LOCAL_OBJECT_NOT_ALLOWED = DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
231    
232        // Type parameter declarations
233    
234        DiagnosticFactory1<JetTypeReference, JetType> FINAL_UPPER_BOUND = DiagnosticFactory1.create(WARNING);
235        DiagnosticFactory0<JetTypeReference> DYNAMIC_UPPER_BOUND = DiagnosticFactory0.create(ERROR);
236    
237        DiagnosticFactory1<JetNamedDeclaration, TypeParameterDescriptor> CONFLICTING_UPPER_BOUNDS =
238                DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
239    
240        DiagnosticFactory2<JetSimpleNameExpression, JetTypeConstraint, JetTypeParameterListOwner> NAME_IN_CONSTRAINT_IS_NOT_A_TYPE_PARAMETER =
241                DiagnosticFactory2.create(ERROR);
242    
243        DiagnosticFactory0<JetTypeParameter>
244                VARIANCE_ON_TYPE_PARAMETER_OF_FUNCTION_OR_PROPERTY = DiagnosticFactory0.create(ERROR, VARIANCE_MODIFIER);
245    
246        DiagnosticFactory0<PsiElement> REIFIED_TYPE_PARAMETER_NO_INLINE = DiagnosticFactory0.create(ERROR);
247    
248        DiagnosticFactory0<JetDeclaration> TYPE_PARAMETERS_NOT_ALLOWED
249                = DiagnosticFactory0.create(ERROR, TYPE_PARAMETERS_OR_DECLARATION_SIGNATURE);
250    
251        DiagnosticFactory0<PsiElement> CYCLIC_GENERIC_UPPER_BOUND = DiagnosticFactory0.create(ERROR);
252    
253        // Members
254    
255        DiagnosticFactory2<JetDeclaration, CallableMemberDescriptor, String> CONFLICTING_OVERLOADS =
256                DiagnosticFactory2.create(ERROR, DECLARATION_SIGNATURE_OR_DEFAULT);
257    
258        DiagnosticFactory0<JetNamedDeclaration> NON_FINAL_MEMBER_IN_FINAL_CLASS = DiagnosticFactory0.create(WARNING, modifierSetPosition(
259                JetTokens.OPEN_KEYWORD));
260    
261        DiagnosticFactory1<JetModifierListOwner, CallableMemberDescriptor> NOTHING_TO_OVERRIDE = DiagnosticFactory1.create(ERROR, OVERRIDE_MODIFIER);
262    
263        DiagnosticFactory3<JetNamedDeclaration, CallableMemberDescriptor, CallableMemberDescriptor, DeclarationDescriptor> VIRTUAL_MEMBER_HIDDEN =
264                DiagnosticFactory3.create(ERROR, DECLARATION_SIGNATURE);
265    
266        DiagnosticFactory2<JetModifierListOwner, CallableMemberDescriptor, CallableDescriptor> CANNOT_OVERRIDE_INVISIBLE_MEMBER =
267                DiagnosticFactory2.create(ERROR, OVERRIDE_MODIFIER);
268    
269        DiagnosticFactory2<PsiElement, CallableMemberDescriptor, DeclarationDescriptor> DATA_CLASS_OVERRIDE_CONFLICT =
270                DiagnosticFactory2.create(ERROR);
271    
272        DiagnosticFactory1<JetDeclaration, CallableMemberDescriptor> CANNOT_INFER_VISIBILITY =
273                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE_OR_DEFAULT);
274    
275        DiagnosticFactory2<JetNamedDeclaration, CallableMemberDescriptor, DeclarationDescriptor> OVERRIDING_FINAL_MEMBER =
276                DiagnosticFactory2.create(ERROR, OVERRIDE_MODIFIER);
277    
278        DiagnosticFactory3<JetModifierListOwner, Visibility, CallableMemberDescriptor, DeclarationDescriptor> CANNOT_WEAKEN_ACCESS_PRIVILEGE =
279                DiagnosticFactory3.create(ERROR, VISIBILITY_MODIFIER);
280        DiagnosticFactory3<JetModifierListOwner, Visibility, CallableMemberDescriptor, DeclarationDescriptor> CANNOT_CHANGE_ACCESS_PRIVILEGE =
281                DiagnosticFactory3.create(ERROR, VISIBILITY_MODIFIER);
282        DiagnosticFactory2<JetNamedDeclaration, CallableMemberDescriptor, CallableMemberDescriptor> RETURN_TYPE_MISMATCH_ON_OVERRIDE =
283                DiagnosticFactory2.create(ERROR, DECLARATION_RETURN_TYPE);
284        DiagnosticFactory2<JetNamedDeclaration, CallableMemberDescriptor, CallableMemberDescriptor> PROPERTY_TYPE_MISMATCH_ON_OVERRIDE =
285                DiagnosticFactory2.create(ERROR, DECLARATION_RETURN_TYPE);
286    
287        DiagnosticFactory2<JetClassOrObject, JetClassOrObject, CallableMemberDescriptor> ABSTRACT_MEMBER_NOT_IMPLEMENTED =
288                DiagnosticFactory2.create(ERROR, DECLARATION_NAME);
289        DiagnosticFactory2<JetClassOrObject, JetClassOrObject, CallableMemberDescriptor> MANY_IMPL_MEMBER_NOT_IMPLEMENTED =
290                DiagnosticFactory2.create(ERROR, DECLARATION_NAME);
291    
292        DiagnosticFactory1<JetNamedDeclaration, Collection<JetType>> AMBIGUOUS_ANONYMOUS_TYPE_INFERRED =
293                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE);
294    
295        // Property-specific
296    
297        DiagnosticFactory2<JetNamedDeclaration, PropertyDescriptor, PropertyDescriptor> VAR_OVERRIDDEN_BY_VAL =
298                DiagnosticFactory2.create(ERROR, VAL_OR_VAR_NODE);
299    
300        DiagnosticFactory0<PsiElement> REDUNDANT_MODIFIER_IN_GETTER = DiagnosticFactory0.create(WARNING);
301        DiagnosticFactory0<PsiElement> GETTER_VISIBILITY_DIFFERS_FROM_PROPERTY_VISIBILITY = DiagnosticFactory0.create(ERROR);
302        DiagnosticFactory2<JetTypeReference, JetType, JetType> WRONG_GETTER_RETURN_TYPE = DiagnosticFactory2.create(ERROR);
303    
304        DiagnosticFactory0<JetModifierListOwner>
305                ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS = DiagnosticFactory0.create(ERROR, ABSTRACT_MODIFIER);
306        DiagnosticFactory0<JetExpression> ABSTRACT_PROPERTY_WITH_INITIALIZER = DiagnosticFactory0.create(ERROR);
307        DiagnosticFactory0<JetPropertyAccessor> ABSTRACT_PROPERTY_WITH_GETTER = DiagnosticFactory0.create(ERROR);
308        DiagnosticFactory0<JetPropertyAccessor> ABSTRACT_PROPERTY_WITH_SETTER = DiagnosticFactory0.create(ERROR);
309    
310        DiagnosticFactory0<JetPropertyDelegate> ABSTRACT_DELEGATED_PROPERTY = DiagnosticFactory0.create(ERROR);
311        DiagnosticFactory0<JetPropertyAccessor> ACCESSOR_FOR_DELEGATED_PROPERTY = DiagnosticFactory0.create(ERROR);
312        DiagnosticFactory0<JetPropertyDelegate> DELEGATED_PROPERTY_IN_TRAIT = DiagnosticFactory0.create(ERROR);
313        DiagnosticFactory0<JetPropertyDelegate> LOCAL_VARIABLE_WITH_DELEGATE = DiagnosticFactory0.create(ERROR);
314    
315        DiagnosticFactory0<JetProperty> PROPERTY_WITH_NO_TYPE_NO_INITIALIZER = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
316    
317        DiagnosticFactory0<JetProperty> MUST_BE_INITIALIZED = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
318        DiagnosticFactory0<JetProperty> MUST_BE_INITIALIZED_OR_BE_ABSTRACT = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
319    
320        DiagnosticFactory0<JetExpression> EXTENSION_PROPERTY_WITH_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
321        DiagnosticFactory0<JetExpression> PROPERTY_INITIALIZER_NO_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
322        DiagnosticFactory0<JetExpression> PROPERTY_INITIALIZER_IN_TRAIT = DiagnosticFactory0.create(ERROR);
323        DiagnosticFactory0<JetProperty> FINAL_PROPERTY_IN_TRAIT = DiagnosticFactory0.create(ERROR, FINAL_MODIFIER);
324        DiagnosticFactory0<PsiElement> INAPPLICABLE_LATEINIT_MODIFIER = DiagnosticFactory0.create(ERROR);
325        DiagnosticFactory0<JetProperty> BACKING_FIELD_IN_TRAIT = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
326    
327        DiagnosticFactory2<JetModifierListOwner, String, ClassDescriptor> ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS = DiagnosticFactory2.create(ERROR, ABSTRACT_MODIFIER);
328    
329        DiagnosticFactory0<JetPropertyAccessor> VAL_WITH_SETTER = DiagnosticFactory0.create(ERROR);
330    
331        DiagnosticFactory0<JetExpression> SETTER_PARAMETER_WITH_DEFAULT_VALUE = DiagnosticFactory0.create(ERROR);
332    
333        DiagnosticFactory2<JetTypeReference, JetType, JetType> WRONG_SETTER_PARAMETER_TYPE = DiagnosticFactory2.create(ERROR);
334    
335        // Function-specific
336    
337        DiagnosticFactory2<JetFunction, String, ClassDescriptor> ABSTRACT_FUNCTION_IN_NON_ABSTRACT_CLASS = DiagnosticFactory2.create(ERROR, ABSTRACT_MODIFIER);
338    
339        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> ABSTRACT_FUNCTION_WITH_BODY = DiagnosticFactory1.create(ERROR, ABSTRACT_MODIFIER);
340        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> NON_ABSTRACT_FUNCTION_WITH_NO_BODY =
341                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE);
342        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> FINAL_FUNCTION_WITH_NO_BODY = DiagnosticFactory1.create(ERROR, FINAL_MODIFIER);
343    
344        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> NON_MEMBER_FUNCTION_NO_BODY =
345                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE);
346    
347        DiagnosticFactory0<JetFunction> FUNCTION_DECLARATION_WITH_NO_NAME = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
348        DiagnosticFactory0<PsiElement>  FUNCTION_EXPRESSION_WITH_NAME     = DiagnosticFactory0.create(WARNING);
349    
350        DiagnosticFactory0<JetParameter> VALUE_PARAMETER_WITH_NO_TYPE_ANNOTATION = DiagnosticFactory0.create(ERROR);
351    
352        DiagnosticFactory0<JetNamedFunction> NO_TAIL_CALLS_FOUND = DiagnosticFactory0.create(WARNING, DECLARATION_SIGNATURE);
353    
354        DiagnosticFactory0<JetParameter> FUNCTION_EXPRESSION_PARAMETER_WITH_DEFAULT_VALUE = DiagnosticFactory0.create(ERROR, PARAMETER_DEFAULT_VALUE);
355    
356        DiagnosticFactory0<JetParameter> USELESS_VARARG_ON_PARAMETER = DiagnosticFactory0.create(WARNING);
357    
358        DiagnosticFactory0<JetFunctionLiteralExpression> DEPRECATED_LAMBDA_SYNTAX =
359                DiagnosticFactory0.create(WARNING, FUNCTION_LITERAL_EXPRESSION_DECLARATION);
360    
361        // Named parameters
362    
363        DiagnosticFactory0<JetParameter> DEFAULT_VALUE_NOT_ALLOWED_IN_OVERRIDE = DiagnosticFactory0.create(ERROR, PARAMETER_DEFAULT_VALUE);
364    
365        DiagnosticFactory1<JetParameter, ValueParameterDescriptor> MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES = DiagnosticFactory1.create(ERROR);
366    
367        DiagnosticFactory1<JetClassOrObject, ValueParameterDescriptor> MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_WHEN_NO_EXPLICIT_OVERRIDE =
368                DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
369    
370        DiagnosticFactory2<JetParameter, ClassDescriptor, ValueParameterDescriptor> PARAMETER_NAME_CHANGED_ON_OVERRIDE =
371                DiagnosticFactory2.create(WARNING, DECLARATION_NAME);
372    
373        DiagnosticFactory2<JetClassOrObject, Collection<? extends CallableMemberDescriptor>, Integer> DIFFERENT_NAMES_FOR_THE_SAME_PARAMETER_IN_SUPERTYPES =
374                DiagnosticFactory2.create(WARNING, DECLARATION_NAME);
375    
376        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
377    
378        // Errors/warnings inside code blocks
379    
380        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
381    
382        // General
383    
384        DiagnosticFactory1<PsiElement, String> NAME_SHADOWING = DiagnosticFactory1.create(WARNING, PositioningStrategies.FOR_REDECLARATION);
385    
386        DiagnosticFactory0<JetExpression> TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM = DiagnosticFactory0.create(ERROR);
387    
388        // Checking call arguments
389    
390        DiagnosticFactory0<PsiElement> MIXING_NAMED_AND_POSITIONED_ARGUMENTS = DiagnosticFactory0.create(ERROR);
391        DiagnosticFactory0<JetReferenceExpression> ARGUMENT_PASSED_TWICE = DiagnosticFactory0.create(ERROR);
392        DiagnosticFactory1<JetReferenceExpression, JetReferenceExpression> NAMED_PARAMETER_NOT_FOUND =
393                DiagnosticFactory1.create(ERROR, FOR_UNRESOLVED_REFERENCE);
394        DiagnosticFactory1<PsiElement, BadNamedArgumentsTarget> NAMED_ARGUMENTS_NOT_ALLOWED = DiagnosticFactory1.create(ERROR);
395    
396        enum BadNamedArgumentsTarget {
397            NON_KOTLIN_FUNCTION,
398            INVOKE_ON_FUNCTION_TYPE
399        }
400    
401        DiagnosticFactory0<JetExpression> VARARG_OUTSIDE_PARENTHESES = DiagnosticFactory0.create(ERROR);
402        DiagnosticFactory0<LeafPsiElement> NON_VARARG_SPREAD = DiagnosticFactory0.create(ERROR);
403    
404        DiagnosticFactory0<JetExpression> MANY_FUNCTION_LITERAL_ARGUMENTS = DiagnosticFactory0.create(ERROR);
405    
406        DiagnosticFactory1<PsiElement, CallableDescriptor> TOO_MANY_ARGUMENTS = DiagnosticFactory1.create(ERROR);
407    
408        DiagnosticFactory1<JetElement, ValueParameterDescriptor> NO_VALUE_FOR_PARAMETER = DiagnosticFactory1.create(ERROR, VALUE_ARGUMENTS);
409    
410        DiagnosticFactory1<JetExpression, JetType> MISSING_RECEIVER = DiagnosticFactory1.create(ERROR);
411        DiagnosticFactory0<JetExpression> NO_RECEIVER_ALLOWED = DiagnosticFactory0.create(ERROR);
412    
413        DiagnosticFactory0<JetExpression> FREE_FUNCTION_CALLED_AS_EXTENSION = DiagnosticFactory0.create(ERROR);
414    
415        // Call resolution
416    
417        DiagnosticFactory1<JetExpression, String> ILLEGAL_SELECTOR = DiagnosticFactory1.create(ERROR);
418    
419        DiagnosticFactory2<JetExpression, JetExpression, JetType> FUNCTION_EXPECTED = DiagnosticFactory2.create(ERROR);
420        DiagnosticFactory2<JetExpression, JetExpression, Boolean> FUNCTION_CALL_EXPECTED = DiagnosticFactory2.create(ERROR, CALL_EXPRESSION);
421    
422        DiagnosticFactory0<PsiElement> NON_TAIL_RECURSIVE_CALL = DiagnosticFactory0.create(WARNING, CALL_EXPRESSION);
423        DiagnosticFactory0<PsiElement> TAIL_RECURSION_IN_TRY_IS_NOT_SUPPORTED = DiagnosticFactory0.create(WARNING, CALL_EXPRESSION);
424    
425        DiagnosticFactory0<PsiElement> NO_CONSTRUCTOR = DiagnosticFactory0.create(ERROR);
426        DiagnosticFactory0<PsiElement> CREATING_AN_INSTANCE_OF_ABSTRACT_CLASS = DiagnosticFactory0.create(ERROR);
427        DiagnosticFactory0<JetExpression> NOT_A_CLASS = DiagnosticFactory0.create(ERROR);
428    
429        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> OVERLOAD_RESOLUTION_AMBIGUITY = DiagnosticFactory1.create(ERROR);
430        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> NONE_APPLICABLE = DiagnosticFactory1.create(ERROR);
431        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> CANNOT_COMPLETE_RESOLVE = DiagnosticFactory1.create(ERROR);
432        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> UNRESOLVED_REFERENCE_WRONG_RECEIVER = DiagnosticFactory1.create(ERROR);
433    
434        DiagnosticFactory1<PsiElement, TypeParameterDescriptor> TYPE_PARAMETER_AS_REIFIED = DiagnosticFactory1.create(ERROR);
435        DiagnosticFactory1<PsiElement, JetType> REIFIED_TYPE_FORBIDDEN_SUBSTITUTION = DiagnosticFactory1.create(ERROR);
436    
437        // Type inference
438    
439        DiagnosticFactory0<JetParameter> CANNOT_INFER_PARAMETER_TYPE = DiagnosticFactory0.create(ERROR);
440    
441        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER = DiagnosticFactory1.create(ERROR);
442        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_CONFLICTING_SUBSTITUTIONS = DiagnosticFactory1.create(ERROR);
443        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_CANNOT_CAPTURE_TYPES = DiagnosticFactory1.create(ERROR);
444        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_PARAMETER_CONSTRAINT_ERROR = DiagnosticFactory1.create(ERROR);
445        DiagnosticFactory0<PsiElement> TYPE_INFERENCE_INCORPORATION_ERROR = DiagnosticFactory0.create(ERROR);
446        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_UPPER_BOUND_VIOLATED = DiagnosticFactory1.create(ERROR);
447        DiagnosticFactory2<JetExpression, JetType, JetType> TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH = DiagnosticFactory2.create(ERROR);
448    
449        // Reflection
450    
451        DiagnosticFactory1<JetExpression, CallableMemberDescriptor> EXTENSION_IN_CLASS_REFERENCE_NOT_ALLOWED = DiagnosticFactory1.create(ERROR);
452        DiagnosticFactory0<JetExpression> CALLABLE_REFERENCE_LHS_NOT_A_CLASS = DiagnosticFactory0.create(ERROR);
453    
454        DiagnosticFactory0<JetExpression> CLASS_LITERAL_LHS_NOT_A_CLASS = DiagnosticFactory0.create(ERROR);
455        DiagnosticFactory0<JetExpression> ARRAY_CLASS_LITERAL_REQUIRES_ARGUMENT = DiagnosticFactory0.create(ERROR);
456    
457        // Multi-declarations
458    
459        DiagnosticFactory0<JetMultiDeclaration> INITIALIZER_REQUIRED_FOR_MULTIDECLARATION = DiagnosticFactory0.create(ERROR, DEFAULT);
460        DiagnosticFactory2<JetExpression, Name, JetType> COMPONENT_FUNCTION_MISSING = DiagnosticFactory2.create(ERROR, DEFAULT);
461        DiagnosticFactory2<JetExpression, Name, Collection<? extends ResolvedCall<?>>> COMPONENT_FUNCTION_AMBIGUITY = DiagnosticFactory2.create(ERROR, DEFAULT);
462        DiagnosticFactory3<JetExpression, Name, JetType, JetType> COMPONENT_FUNCTION_RETURN_TYPE_MISMATCH = DiagnosticFactory3.create(ERROR, DEFAULT);
463    
464        // Super calls
465    
466        DiagnosticFactory1<JetSuperExpression, String> SUPER_IS_NOT_AN_EXPRESSION = DiagnosticFactory1.create(ERROR);
467        DiagnosticFactory1<JetSuperExpression, String> SUPER_CANT_BE_EXTENSION_RECEIVER = DiagnosticFactory1.create(ERROR);
468        DiagnosticFactory0<JetSuperExpression> SUPER_NOT_AVAILABLE = DiagnosticFactory0.create(ERROR);
469        DiagnosticFactory0<JetSuperExpression> SUPERCLASS_NOT_ACCESSIBLE_FROM_TRAIT = DiagnosticFactory0.create(ERROR);
470        DiagnosticFactory0<JetSuperExpression> AMBIGUOUS_SUPER = DiagnosticFactory0.create(ERROR);
471        DiagnosticFactory0<JetExpression> ABSTRACT_SUPER_CALL = DiagnosticFactory0.create(ERROR);
472        DiagnosticFactory0<JetTypeReference> NOT_A_SUPERTYPE = DiagnosticFactory0.create(ERROR);
473        DiagnosticFactory0<PsiElement> TYPE_ARGUMENTS_REDUNDANT_IN_SUPER_QUALIFIER = DiagnosticFactory0.create(WARNING);
474    
475        // Conventions
476    
477        DiagnosticFactory0<JetArrayAccessExpression> NO_GET_METHOD = DiagnosticFactory0.create(ERROR, ARRAY_ACCESS);
478        DiagnosticFactory0<JetArrayAccessExpression> NO_SET_METHOD = DiagnosticFactory0.create(ERROR, ARRAY_ACCESS);
479    
480        DiagnosticFactory0<JetSimpleNameExpression> INC_DEC_SHOULD_NOT_RETURN_UNIT = DiagnosticFactory0.create(ERROR);
481        DiagnosticFactory2<JetSimpleNameExpression, DeclarationDescriptor, JetSimpleNameExpression> ASSIGNMENT_OPERATOR_SHOULD_RETURN_UNIT =
482                DiagnosticFactory2.create(ERROR);
483        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>>
484                ASSIGN_OPERATOR_AMBIGUITY = DiagnosticFactory1.create(ERROR);
485    
486        DiagnosticFactory0<JetSimpleNameExpression> EQUALS_MISSING = DiagnosticFactory0.create(ERROR);
487        DiagnosticFactory3<JetBinaryExpression, JetSimpleNameExpression, JetType, JetType> EQUALITY_NOT_APPLICABLE =
488                DiagnosticFactory3.create(ERROR);
489    
490    
491        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_MISSING = DiagnosticFactory1.create(ERROR);
492        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_FUNCTION_AMBIGUITY = DiagnosticFactory1.create(ERROR);
493        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_FUNCTION_NONE_APPLICABLE = DiagnosticFactory1.create(ERROR);
494        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_FUNCTION_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
495    
496        DiagnosticFactory1<JetExpression, JetType> NEXT_AMBIGUITY = DiagnosticFactory1.create(ERROR);
497        DiagnosticFactory1<JetExpression, JetType> NEXT_MISSING = DiagnosticFactory1.create(ERROR);
498        DiagnosticFactory1<JetExpression, JetType> NEXT_NONE_APPLICABLE = DiagnosticFactory1.create(ERROR);
499    
500        DiagnosticFactory0<JetExpression> ITERATOR_MISSING = DiagnosticFactory0.create(ERROR);
501        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> ITERATOR_AMBIGUITY = DiagnosticFactory1.create(ERROR);
502    
503        DiagnosticFactory2<JetExpression, String, JetType> DELEGATE_SPECIAL_FUNCTION_MISSING = DiagnosticFactory2.create(ERROR);
504        DiagnosticFactory2<JetExpression, String, Collection<? extends ResolvedCall<?>>> DELEGATE_SPECIAL_FUNCTION_AMBIGUITY = DiagnosticFactory2.create(ERROR);
505        DiagnosticFactory2<JetExpression, String, Collection<? extends ResolvedCall<?>>> DELEGATE_SPECIAL_FUNCTION_NONE_APPLICABLE = DiagnosticFactory2.create(ERROR);
506        DiagnosticFactory3<JetExpression, String, JetType, JetType> DELEGATE_SPECIAL_FUNCTION_RETURN_TYPE_MISMATCH = DiagnosticFactory3.create(ERROR);
507        DiagnosticFactory2<JetExpression, String, Collection<? extends ResolvedCall<?>>> DELEGATE_PD_METHOD_NONE_APPLICABLE = DiagnosticFactory2.create(WARNING);
508    
509        DiagnosticFactory1<JetSimpleNameExpression, JetType> COMPARE_TO_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
510    
511        // Labels
512    
513        DiagnosticFactory0<JetSimpleNameExpression> LABEL_NAME_CLASH = DiagnosticFactory0.create(WARNING);
514        DiagnosticFactory0<JetSimpleNameExpression> AMBIGUOUS_LABEL = DiagnosticFactory0.create(ERROR);
515    
516        DiagnosticFactory0<JetExpressionWithLabel> BREAK_OR_CONTINUE_OUTSIDE_A_LOOP = DiagnosticFactory0.create(ERROR);
517        DiagnosticFactory0<JetExpressionWithLabel> BREAK_OR_CONTINUE_IN_WHEN = DiagnosticFactory0.create(ERROR);
518        DiagnosticFactory0<JetExpressionWithLabel> BREAK_OR_CONTINUE_JUMPS_ACROSS_FUNCTION_BOUNDARY = DiagnosticFactory0.create(ERROR);
519        DiagnosticFactory1<JetExpressionWithLabel, String> NOT_A_LOOP_LABEL = DiagnosticFactory1.create(ERROR);
520        DiagnosticFactory1<JetReturnExpression, String> NOT_A_RETURN_LABEL = DiagnosticFactory1.create(ERROR);
521    
522        // Control flow / Data flow
523    
524        DiagnosticFactory1<JetElement, List<TextRange>> UNREACHABLE_CODE = DiagnosticFactory1.create(
525                WARNING, PositioningStrategies.UNREACHABLE_CODE);
526    
527        DiagnosticFactory0<JetVariableDeclaration> VARIABLE_WITH_NO_TYPE_NO_INITIALIZER = DiagnosticFactory0.create(ERROR, DECLARATION_NAME);
528    
529        DiagnosticFactory1<JetSimpleNameExpression, VariableDescriptor> UNINITIALIZED_VARIABLE = DiagnosticFactory1.create(ERROR);
530        DiagnosticFactory1<JetSimpleNameExpression, ValueParameterDescriptor> UNINITIALIZED_PARAMETER = DiagnosticFactory1.create(ERROR);
531    
532        DiagnosticFactory1<JetNamedDeclaration, VariableDescriptor> UNUSED_VARIABLE = DiagnosticFactory1.create(WARNING, DECLARATION_NAME);
533        DiagnosticFactory1<JetParameter, VariableDescriptor> UNUSED_PARAMETER = DiagnosticFactory1.create(WARNING, DECLARATION_NAME);
534    
535        DiagnosticFactory1<JetNamedDeclaration, VariableDescriptor> ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE =
536                DiagnosticFactory1.create(WARNING, DECLARATION_NAME);
537        DiagnosticFactory1<JetExpression, DeclarationDescriptor> VARIABLE_WITH_REDUNDANT_INITIALIZER = DiagnosticFactory1.create(WARNING);
538        DiagnosticFactory2<JetBinaryExpression, JetElement, DeclarationDescriptor> UNUSED_VALUE = DiagnosticFactory2.create(WARNING, PositioningStrategies.UNUSED_VALUE);
539        DiagnosticFactory1<JetElement, JetElement> UNUSED_CHANGED_VALUE = DiagnosticFactory1.create(WARNING);
540        DiagnosticFactory0<JetElement> UNUSED_EXPRESSION = DiagnosticFactory0.create(WARNING);
541        DiagnosticFactory0<JetFunctionLiteralExpression> UNUSED_FUNCTION_LITERAL = DiagnosticFactory0.create(WARNING);
542    
543        DiagnosticFactory1<JetExpression, DeclarationDescriptor> VAL_REASSIGNMENT = DiagnosticFactory1.create(ERROR);
544        DiagnosticFactory1<JetExpression, DeclarationDescriptor> SETTER_PROJECTED_OUT = DiagnosticFactory1.create(ERROR);
545    
546        DiagnosticFactory1<JetExpression, DeclarationDescriptor> INITIALIZATION_BEFORE_DECLARATION = DiagnosticFactory1.create(ERROR);
547    
548        DiagnosticFactory0<JetExpression> VARIABLE_EXPECTED = DiagnosticFactory0.create(ERROR);
549    
550        DiagnosticFactory2<JetBinaryExpression, JetBinaryExpression, Boolean> SENSELESS_COMPARISON = DiagnosticFactory2.create(WARNING);
551    
552        DiagnosticFactory0<JetElement> SENSELESS_NULL_IN_WHEN = DiagnosticFactory0.create(WARNING);
553    
554        // Nullability
555    
556        DiagnosticFactory1<PsiElement, JetType> UNSAFE_CALL = DiagnosticFactory1.create(ERROR);
557        DiagnosticFactory3<JetExpression, String, String, String> UNSAFE_INFIX_CALL = DiagnosticFactory3.create(ERROR);
558        DiagnosticFactory1<PsiElement, JetType> UNNECESSARY_SAFE_CALL = DiagnosticFactory1.create(WARNING);
559        DiagnosticFactory1<PsiElement, JetType> UNNECESSARY_NOT_NULL_ASSERTION = DiagnosticFactory1.create(WARNING);
560        DiagnosticFactory0<PsiElement> NOT_NULL_ASSERTION_ON_FUNCTION_LITERAL = DiagnosticFactory0.create(WARNING);
561    
562        DiagnosticFactory1<JetBinaryExpression, JetType> USELESS_ELVIS = DiagnosticFactory1.create(WARNING, PositioningStrategies.USELESS_ELVIS);
563        DiagnosticFactory0<PsiElement> USELESS_ELVIS_ON_FUNCTION_LITERAL = DiagnosticFactory0.create(WARNING);
564    
565        // Compile-time values
566    
567        DiagnosticFactory0<JetExpression> DIVISION_BY_ZERO = DiagnosticFactory0.create(WARNING);
568        DiagnosticFactory0<JetExpression> INTEGER_OVERFLOW = DiagnosticFactory0.create(WARNING);
569        DiagnosticFactory0<JetConstantExpression> WRONG_LONG_SUFFIX = DiagnosticFactory0.create(ERROR, LONG_LITERAL_SUFFIX);
570        DiagnosticFactory0<JetConstantExpression> INT_LITERAL_OUT_OF_RANGE = DiagnosticFactory0.create(ERROR);
571        DiagnosticFactory0<JetConstantExpression> FLOAT_LITERAL_OUT_OF_RANGE = DiagnosticFactory0.create(ERROR);
572        DiagnosticFactory2<JetConstantExpression, String, JetType> CONSTANT_EXPECTED_TYPE_MISMATCH = DiagnosticFactory2.create(ERROR);
573        DiagnosticFactory0<JetConstantExpression> INCORRECT_CHARACTER_LITERAL = DiagnosticFactory0.create(ERROR);
574        DiagnosticFactory0<JetConstantExpression> EMPTY_CHARACTER_LITERAL = DiagnosticFactory0.create(ERROR);
575        DiagnosticFactory1<JetConstantExpression, JetConstantExpression> TOO_MANY_CHARACTERS_IN_CHARACTER_LITERAL = DiagnosticFactory1.create(ERROR);
576        DiagnosticFactory1<JetElement, JetElement> ILLEGAL_ESCAPE = DiagnosticFactory1.create(ERROR, CUT_CHAR_QUOTES);
577        DiagnosticFactory1<JetConstantExpression, JetType> NULL_FOR_NONNULL_TYPE = DiagnosticFactory1.create(ERROR);
578        DiagnosticFactory0<JetEscapeStringTemplateEntry> ILLEGAL_ESCAPE_SEQUENCE = DiagnosticFactory0.create(ERROR);
579    
580        // Casts and is-checks
581    
582        DiagnosticFactory1<JetElement, JetType> CANNOT_CHECK_FOR_ERASED = DiagnosticFactory1.create(ERROR);
583        DiagnosticFactory2<JetBinaryExpressionWithTypeRHS, JetType, JetType> UNCHECKED_CAST = DiagnosticFactory2.create(WARNING);
584    
585        DiagnosticFactory0<JetBinaryExpressionWithTypeRHS> DEPRECATED_STATIC_ASSERT = DiagnosticFactory0.create(WARNING, AS_TYPE);
586        DiagnosticFactory0<JetBinaryExpressionWithTypeRHS> USELESS_CAST = DiagnosticFactory0.create(WARNING, AS_TYPE);
587        DiagnosticFactory0<JetSimpleNameExpression> CAST_NEVER_SUCCEEDS = DiagnosticFactory0.create(WARNING);
588        DiagnosticFactory0<JetTypeReference> DYNAMIC_NOT_ALLOWED = DiagnosticFactory0.create(ERROR);
589        DiagnosticFactory0<JetTypeReference> IS_ENUM_ENTRY = DiagnosticFactory0.create(ERROR);
590    
591        DiagnosticFactory1<JetExpression, JetType> IMPLICIT_CAST_TO_UNIT_OR_ANY = DiagnosticFactory1.create(WARNING);
592    
593        DiagnosticFactory2<JetExpression, JetType, String> SMARTCAST_IMPOSSIBLE = DiagnosticFactory2.create(ERROR);
594    
595        DiagnosticFactory0<JetNullableType> USELESS_NULLABLE_CHECK = DiagnosticFactory0.create(WARNING, NULLABLE_TYPE);
596    
597        // Properties / locals
598    
599        DiagnosticFactory1<JetExpression, DeclarationDescriptor> INITIALIZATION_USING_BACKING_FIELD_CUSTOM_SETTER = DiagnosticFactory1.create(ERROR);
600        DiagnosticFactory1<JetExpression, DeclarationDescriptor> INITIALIZATION_USING_BACKING_FIELD_OPEN_SETTER = DiagnosticFactory1.create(ERROR);
601    
602        DiagnosticFactory0<JetTypeReference> LOCAL_EXTENSION_PROPERTY = DiagnosticFactory0.create(ERROR);
603        DiagnosticFactory0<JetPropertyAccessor> LOCAL_VARIABLE_WITH_GETTER = DiagnosticFactory0.create(ERROR);
604        DiagnosticFactory0<JetPropertyAccessor> LOCAL_VARIABLE_WITH_SETTER = DiagnosticFactory0.create(ERROR);
605    
606        DiagnosticFactory3<JetExpression, DeclarationDescriptor, Visibility, DeclarationDescriptor> INVISIBLE_SETTER = DiagnosticFactory3.create(ERROR);
607    
608        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_LOOP_PARAMETER = DiagnosticFactory1.create(ERROR);
609        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_FUN_PARAMETER = DiagnosticFactory1.create(ERROR);
610        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_CATCH_PARAMETER = DiagnosticFactory1.create(ERROR);
611        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_SECONDARY_CONSTRUCTOR_PARAMETER = DiagnosticFactory1.create(ERROR);
612    
613        // Backing fields
614    
615        DiagnosticFactory0<JetElement> NO_BACKING_FIELD_ABSTRACT_PROPERTY = DiagnosticFactory0.create(ERROR);
616        DiagnosticFactory0<JetElement> NO_BACKING_FIELD_CUSTOM_ACCESSORS = DiagnosticFactory0.create(ERROR);
617        DiagnosticFactory0<JetElement> INACCESSIBLE_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
618        DiagnosticFactory0<JetElement> NOT_PROPERTY_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
619    
620        // When expressions
621    
622        DiagnosticFactory0<JetWhenCondition> EXPECTED_CONDITION = DiagnosticFactory0.create(ERROR);
623        DiagnosticFactory0<JetWhenEntry> ELSE_MISPLACED_IN_WHEN = DiagnosticFactory0.create(ERROR, ELSE_ENTRY);
624        DiagnosticFactory0<JetWhenExpression> NO_ELSE_IN_WHEN = DiagnosticFactory0.create(ERROR, WHEN_EXPRESSION);
625        DiagnosticFactory0<JetWhenExpression> NON_EXHAUSTIVE_WHEN = DiagnosticFactory0.create(WARNING, WHEN_EXPRESSION);
626    
627        // Type mismatch
628    
629        DiagnosticFactory2<JetExpression, JetType, JetType> TYPE_MISMATCH = DiagnosticFactory2.create(ERROR);
630        DiagnosticFactory1<JetExpression, JetType> RETURN_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
631        DiagnosticFactory1<JetExpression, JetType> EXPECTED_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
632        DiagnosticFactory1<JetBinaryExpression, JetType> ASSIGNMENT_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
633        DiagnosticFactory2<JetTypeReference, JetType, JetType> TYPE_MISMATCH_IN_FOR_LOOP = DiagnosticFactory2.create(ERROR);
634        DiagnosticFactory1<JetElement, JetType> TYPE_MISMATCH_IN_CONDITION = DiagnosticFactory1.create(ERROR);
635        DiagnosticFactory3<JetExpression, String, JetType, JetType> RESULT_TYPE_MISMATCH = DiagnosticFactory3.create(ERROR);
636        DiagnosticFactory0<JetWhenConditionInRange> TYPE_MISMATCH_IN_RANGE = DiagnosticFactory0.create(ERROR, WHEN_CONDITION_IN_RANGE);
637    
638        DiagnosticFactory1<JetParameter, JetType> EXPECTED_PARAMETER_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
639        DiagnosticFactory1<JetTypeReference, JetType> EXPECTED_RETURN_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
640        DiagnosticFactory2<JetFunction, Integer, List<JetType>> EXPECTED_PARAMETERS_NUMBER_MISMATCH =
641                DiagnosticFactory2.create(ERROR, FUNCTION_PARAMETERS);
642    
643        DiagnosticFactory2<JetElement, JetType, JetType> INCOMPATIBLE_TYPES = DiagnosticFactory2.create(ERROR);
644    
645        // Context tracking
646    
647        DiagnosticFactory1<JetExpression, JetExpression> EXPRESSION_EXPECTED = DiagnosticFactory1.create(ERROR);
648        DiagnosticFactory0<JetBinaryExpression> ASSIGNMENT_IN_EXPRESSION_CONTEXT = DiagnosticFactory0.create(ERROR);
649        DiagnosticFactory0<JetDeclaration> DECLARATION_IN_ILLEGAL_CONTEXT = DiagnosticFactory0.create(ERROR);
650    
651        DiagnosticFactory0<JetSimpleNameExpression> EXPRESSION_EXPECTED_PACKAGE_FOUND = DiagnosticFactory0.create(ERROR);
652    
653        DiagnosticFactory0<JetReturnExpression> RETURN_NOT_ALLOWED = DiagnosticFactory0.create(ERROR);
654        DiagnosticFactory0<JetReturnExpression> RETURN_IN_FUNCTION_WITH_EXPRESSION_BODY = DiagnosticFactory0.create(ERROR);
655        DiagnosticFactory0<JetDeclarationWithBody>
656                NO_RETURN_IN_FUNCTION_WITH_BLOCK_BODY = DiagnosticFactory0.create(ERROR, DECLARATION_WITH_BODY);
657    
658        DiagnosticFactory0<JetClassInitializer> ANONYMOUS_INITIALIZER_IN_TRAIT = DiagnosticFactory0.create(ERROR);
659    
660        DiagnosticFactory0<JetThisExpression> NO_THIS = DiagnosticFactory0.create(ERROR);
661        DiagnosticFactory0<JetRootPackageExpression> PACKAGE_IS_NOT_AN_EXPRESSION = DiagnosticFactory0.create(ERROR);
662        DiagnosticFactory1<JetSimpleNameExpression, ClassifierDescriptor> NO_COMPANION_OBJECT = DiagnosticFactory1.create(ERROR);
663        DiagnosticFactory1<JetSimpleNameExpression, TypeParameterDescriptor> TYPE_PARAMETER_IS_NOT_AN_EXPRESSION = DiagnosticFactory1.create(ERROR);
664        DiagnosticFactory1<JetSimpleNameExpression, TypeParameterDescriptor> TYPE_PARAMETER_ON_LHS_OF_DOT = DiagnosticFactory1.create(ERROR);
665        DiagnosticFactory1<JetExpression, ClassDescriptor> NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE = DiagnosticFactory1.create(ERROR);
666        DiagnosticFactory2<JetExpression, ClassDescriptor, String> NESTED_CLASS_SHOULD_BE_QUALIFIED = DiagnosticFactory2.create(ERROR);
667    
668        DiagnosticFactory1<PsiElement, ClassDescriptor> INACCESSIBLE_OUTER_CLASS_EXPRESSION = DiagnosticFactory1.create(ERROR);
669        DiagnosticFactory0<JetClass> NESTED_CLASS_NOT_ALLOWED = DiagnosticFactory0.create(ERROR, DECLARATION_NAME);
670    
671        //Inline and inlinable parameters
672        DiagnosticFactory2<JetElement, DeclarationDescriptor, DeclarationDescriptor> INVISIBLE_MEMBER_FROM_INLINE = DiagnosticFactory2.create(ERROR, CALL_ELEMENT);
673        DiagnosticFactory3<JetElement, JetElement, DeclarationDescriptor, DeclarationDescriptor> NON_LOCAL_RETURN_NOT_ALLOWED = DiagnosticFactory3.create(ERROR, CALL_ELEMENT);
674        DiagnosticFactory2<JetElement, JetNamedDeclaration, DeclarationDescriptor> NOT_YET_SUPPORTED_IN_INLINE = DiagnosticFactory2.create(ERROR);
675        DiagnosticFactory1<PsiElement, DeclarationDescriptor> NOTHING_TO_INLINE = DiagnosticFactory1.create(WARNING);
676        DiagnosticFactory2<JetElement, JetExpression, DeclarationDescriptor> USAGE_IS_NOT_INLINABLE = DiagnosticFactory2.create(ERROR);
677        DiagnosticFactory2<JetElement, JetElement, DeclarationDescriptor> NULLABLE_INLINE_PARAMETER = DiagnosticFactory2.create(ERROR);
678        DiagnosticFactory2<JetElement, JetElement, DeclarationDescriptor> RECURSION_IN_INLINE = DiagnosticFactory2.create(ERROR);
679        DiagnosticFactory0<JetElement> DECLARATION_CANT_BE_INLINED = DiagnosticFactory0.create(ERROR);
680        DiagnosticFactory1<PsiElement, CallableDescriptor> INLINE_CALL_CYCLE = DiagnosticFactory1.create(ERROR, DEFAULT);
681        DiagnosticFactory0<PsiElement> NON_LOCAL_RETURN_IN_DISABLED_INLINE = DiagnosticFactory0.create(ERROR);
682    
683    
684        // Error sets
685        ImmutableSet<? extends DiagnosticFactory<?>> UNRESOLVED_REFERENCE_DIAGNOSTICS = ImmutableSet.of(
686                UNRESOLVED_REFERENCE, NAMED_PARAMETER_NOT_FOUND, UNRESOLVED_REFERENCE_WRONG_RECEIVER);
687        ImmutableSet<? extends DiagnosticFactory<?>> INVISIBLE_REFERENCE_DIAGNOSTICS = ImmutableSet.of(
688                INVISIBLE_MEMBER, INVISIBLE_MEMBER_FROM_INLINE, INVISIBLE_REFERENCE, INVISIBLE_SETTER);
689        ImmutableSet<? extends DiagnosticFactory<?>> UNUSED_ELEMENT_DIAGNOSTICS = ImmutableSet.of(
690                UNUSED_VARIABLE, UNUSED_PARAMETER, ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE, VARIABLE_WITH_REDUNDANT_INITIALIZER,
691                UNUSED_FUNCTION_LITERAL, USELESS_CAST, UNUSED_VALUE, USELESS_ELVIS);
692        ImmutableSet<? extends DiagnosticFactory<?>> TYPE_INFERENCE_ERRORS = ImmutableSet.of(
693                TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER, TYPE_INFERENCE_CONFLICTING_SUBSTITUTIONS,
694                TYPE_INFERENCE_PARAMETER_CONSTRAINT_ERROR,
695                TYPE_INFERENCE_UPPER_BOUND_VIOLATED, TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH);
696    
697        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
698    
699        // This field is needed to make the Initializer class load (interfaces cannot have static initializers)
700    
701        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
702        @SuppressWarnings("UnusedDeclaration")
703        Initializer __initializer = Initializer.INSTANCE;
704    
705        class Initializer {
706            static {
707                initializeFactoryNames(Errors.class);
708            }
709    
710            public static void initializeFactoryNames(@NotNull Class<?> aClass) {
711                for (Field field : aClass.getFields()) {
712                    if (Modifier.isStatic(field.getModifiers())) {
713                        try {
714                            Object value = field.get(null);
715                            if (value instanceof DiagnosticFactory) {
716                                DiagnosticFactory<?> factory = (DiagnosticFactory<?>)value;
717                                factory.setName(field.getName());
718                            }
719                        }
720                        catch (IllegalAccessException e) {
721                            throw new IllegalStateException(e);
722                        }
723                    }
724                }
725            }
726    
727            private static final Initializer INSTANCE = new Initializer();
728    
729            private Initializer() {
730            }
731        }
732    }