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    
057        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
058    
059        // Generic errors/warnings: applicable in many contexts
060    
061        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
062    
063        DiagnosticFactory1<PsiElement, String> REDECLARATION = DiagnosticFactory1.create(ERROR, FOR_REDECLARATION);
064    
065        DiagnosticFactory1<JetReferenceExpression, JetReferenceExpression> UNRESOLVED_REFERENCE =
066                DiagnosticFactory1.create(ERROR, FOR_UNRESOLVED_REFERENCE);
067    
068        //Elements with "INVISIBLE_REFERENCE" error are marked as unresolved, unlike elements with "INVISIBLE_MEMBER" error
069        //"INVISIBLE_REFERENCE" is used for invisible classes references and references in import
070        DiagnosticFactory3<JetSimpleNameExpression, DeclarationDescriptor, Visibility, DeclarationDescriptor> INVISIBLE_REFERENCE =
071                DiagnosticFactory3.create(ERROR);
072        DiagnosticFactory3<PsiElement, DeclarationDescriptor, Visibility, DeclarationDescriptor> INVISIBLE_MEMBER = DiagnosticFactory3.create(ERROR, CALL_ELEMENT);
073    
074        DiagnosticFactory1<JetElement, Collection<ClassDescriptor>> PLATFORM_CLASS_MAPPED_TO_KOTLIN = DiagnosticFactory1.create(WARNING);
075    
076        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
077    
078        // Errors/warnings in types
079        // Note: class/trait declaration is NOT a type. A type is something that may be written on the right-hand side of ":"
080    
081        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
082    
083        DiagnosticFactory0<JetTypeProjection> PROJECTION_ON_NON_CLASS_TYPE_ARGUMENT = DiagnosticFactory0.create(ERROR, VARIANCE_IN_PROJECTION);
084        DiagnosticFactory2<JetTypeReference, JetType, JetType> UPPER_BOUND_VIOLATED = DiagnosticFactory2.create(ERROR);
085        DiagnosticFactory0<JetNullableType> REDUNDANT_NULLABLE = DiagnosticFactory0.create(WARNING, NULLABLE_TYPE);
086        DiagnosticFactory1<JetNullableType, JetType> BASE_WITH_NULLABLE_UPPER_BOUND = DiagnosticFactory1.create(WARNING, NULLABLE_TYPE);
087        DiagnosticFactory1<JetElement, Integer> WRONG_NUMBER_OF_TYPE_ARGUMENTS = DiagnosticFactory1.create(ERROR);
088        DiagnosticFactory2<JetTypeReference, Integer, String> NO_TYPE_ARGUMENTS_ON_RHS = DiagnosticFactory2.create(ERROR);
089        DiagnosticFactory1<JetTypeProjection, ClassifierDescriptor> CONFLICTING_PROJECTION = DiagnosticFactory1.create(ERROR, VARIANCE_IN_PROJECTION);
090        DiagnosticFactory1<JetTypeProjection, ClassifierDescriptor> REDUNDANT_PROJECTION = DiagnosticFactory1.create(WARNING, VARIANCE_IN_PROJECTION);
091        DiagnosticFactory1<PsiElement, VarianceConflictDiagnosticData> TYPE_VARIANCE_CONFLICT =
092                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE_OR_DEFAULT);
093    
094        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
095    
096        // Errors in declarations
097    
098        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
099    
100        // Imports
101    
102        DiagnosticFactory1<JetSimpleNameExpression, DeclarationDescriptor> CANNOT_IMPORT_FROM_ELEMENT = DiagnosticFactory1.create(ERROR);
103        DiagnosticFactory1<JetSimpleNameExpression, ClassDescriptor> CANNOT_IMPORT_ON_DEMAND_FROM_SINGLETON = DiagnosticFactory1.create(ERROR);
104        DiagnosticFactory1<JetSimpleNameExpression, DeclarationDescriptor> CANNOT_BE_IMPORTED = DiagnosticFactory1.create(ERROR);
105    
106        DiagnosticFactory1<JetExpression, String> CONFLICTING_IMPORT = DiagnosticFactory1.create(ERROR);
107    
108        // Modifiers
109    
110        DiagnosticFactory1<PsiElement, Collection<JetModifierKeywordToken>> INCOMPATIBLE_MODIFIERS = DiagnosticFactory1.create(ERROR);
111        DiagnosticFactory1<PsiElement, JetModifierKeywordToken> ILLEGAL_MODIFIER = DiagnosticFactory1.create(ERROR);
112        DiagnosticFactory1<PsiElement, JetModifierKeywordToken> REPEATED_MODIFIER = DiagnosticFactory1.create(ERROR);
113        DiagnosticFactory2<PsiElement, JetModifierKeywordToken, JetModifierKeywordToken> REDUNDANT_MODIFIER = DiagnosticFactory2.create(WARNING);
114        DiagnosticFactory0<PsiElement> INAPPLICABLE_ANNOTATION = DiagnosticFactory0.create(ERROR);
115    
116        // Annotations
117    
118        DiagnosticFactory0<JetDelegationSpecifierList> SUPERTYPES_FOR_ANNOTATION_CLASS = DiagnosticFactory0.create(ERROR);
119        DiagnosticFactory0<JetParameter> MISSING_VAL_ON_ANNOTATION_PARAMETER = DiagnosticFactory0.create(ERROR);
120        DiagnosticFactory0<JetCallExpression> ANNOTATION_CLASS_CONSTRUCTOR_CALL = DiagnosticFactory0.create(ERROR);
121        DiagnosticFactory1<JetAnnotationEntry, DeclarationDescriptor> NOT_AN_ANNOTATION_CLASS = DiagnosticFactory1.create(ERROR);
122        DiagnosticFactory0<PsiElement> ANNOTATION_CLASS_WITH_BODY = DiagnosticFactory0.create(ERROR);
123        DiagnosticFactory0<JetTypeReference> INVALID_TYPE_OF_ANNOTATION_MEMBER = DiagnosticFactory0.create(ERROR);
124        DiagnosticFactory0<JetTypeReference> NULLABLE_TYPE_OF_ANNOTATION_MEMBER = DiagnosticFactory0.create(ERROR);
125        DiagnosticFactory0<JetModifierListOwner> ILLEGAL_ANNOTATION_KEYWORD = DiagnosticFactory0
126                .create(ERROR, modifierSetPosition(JetTokens.ANNOTATION_KEYWORD));
127        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_MUST_BE_CONST = DiagnosticFactory0.create(ERROR);
128        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_MUST_BE_CLASS_LITERAL = DiagnosticFactory0.create(ERROR);
129        DiagnosticFactory0<JetExpression> ANNOTATION_PARAMETER_MUST_BE_ENUM_CONST = DiagnosticFactory0.create(ERROR);
130    
131        // Classes and traits
132    
133        DiagnosticFactory0<JetTypeProjection> PROJECTION_IN_IMMEDIATE_ARGUMENT_TO_SUPERTYPE =
134                DiagnosticFactory0.create(ERROR, VARIANCE_IN_PROJECTION);
135    
136        DiagnosticFactory0<PsiElement> CYCLIC_INHERITANCE_HIERARCHY = DiagnosticFactory0.create(ERROR);
137    
138        DiagnosticFactory0<JetDelegatorToSuperClass> SUPERTYPE_NOT_INITIALIZED = DiagnosticFactory0.create(ERROR);
139    
140        DiagnosticFactory0<JetTypeReference> DELEGATION_NOT_TO_TRAIT = DiagnosticFactory0.create(ERROR);
141        DiagnosticFactory0<JetTypeReference> SUPERTYPE_NOT_A_CLASS_OR_TRAIT = DiagnosticFactory0.create(ERROR);
142    
143        DiagnosticFactory0<PsiElement> NO_GENERICS_IN_SUPERTYPE_SPECIFIER = DiagnosticFactory0.create(ERROR);
144    
145        DiagnosticFactory0<JetTypeReference> MANY_CLASSES_IN_SUPERTYPE_LIST = DiagnosticFactory0.create(ERROR);
146        DiagnosticFactory0<JetTypeReference> SUPERTYPE_APPEARS_TWICE = DiagnosticFactory0.create(ERROR);
147        DiagnosticFactory3<JetDelegationSpecifierList, TypeParameterDescriptor, ClassDescriptor, Collection<JetType>>
148                INCONSISTENT_TYPE_PARAMETER_VALUES = DiagnosticFactory3.create(ERROR);
149    
150    
151        DiagnosticFactory0<JetTypeReference> FINAL_SUPERTYPE = DiagnosticFactory0.create(ERROR);
152        DiagnosticFactory0<JetTypeReference> SINGLETON_IN_SUPERTYPE = DiagnosticFactory0.create(ERROR);
153        DiagnosticFactory0<JetNullableType> NULLABLE_SUPERTYPE = DiagnosticFactory0.create(ERROR, NULLABLE_TYPE);
154        DiagnosticFactory0<JetTypeReference> DYNAMIC_SUPERTYPE = DiagnosticFactory0.create(ERROR);
155    
156        // Trait-specific
157    
158        DiagnosticFactory0<JetModifierListOwner> ABSTRACT_MODIFIER_IN_TRAIT = DiagnosticFactory0
159                .create(WARNING, ABSTRACT_MODIFIER);
160        DiagnosticFactory0<JetModifierListOwner> OPEN_MODIFIER_IN_TRAIT = DiagnosticFactory0
161                .create(WARNING, modifierSetPosition(JetTokens.OPEN_KEYWORD));
162        DiagnosticFactory0<JetModifierListOwner> TRAIT_CAN_NOT_BE_FINAL = DiagnosticFactory0.create(ERROR, FINAL_MODIFIER);
163    
164        DiagnosticFactory0<PsiElement> CONSTRUCTOR_IN_TRAIT = DiagnosticFactory0.create(ERROR);
165    
166        DiagnosticFactory0<PsiElement> SUPERTYPE_INITIALIZED_IN_TRAIT = DiagnosticFactory0.create(ERROR);
167    
168        DiagnosticFactory0<JetDelegatorByExpressionSpecifier> DELEGATION_IN_TRAIT = DiagnosticFactory0.create(ERROR);
169    
170        DiagnosticFactory2<JetNamedDeclaration, ClassDescriptor, ClassDescriptor> UNMET_TRAIT_REQUIREMENT =
171                DiagnosticFactory2.create(ERROR, PositioningStrategies.DECLARATION_NAME);
172    
173        // Enum-specific
174    
175        DiagnosticFactory0<JetModifierListOwner> ILLEGAL_ENUM_ANNOTATION = DiagnosticFactory0
176                .create(ERROR, modifierSetPosition(JetTokens.ENUM_KEYWORD));
177    
178        DiagnosticFactory0<JetModifierListOwner> OPEN_MODIFIER_IN_ENUM = DiagnosticFactory0
179                .create(ERROR, modifierSetPosition(JetTokens.OPEN_KEYWORD));
180        DiagnosticFactory0<JetModifierListOwner> ABSTRACT_MODIFIER_IN_ENUM = DiagnosticFactory0
181                .create(ERROR, modifierSetPosition(JetTokens.ABSTRACT_KEYWORD));
182    
183        DiagnosticFactory0<PsiElement> CLASS_IN_SUPERTYPE_FOR_ENUM = DiagnosticFactory0.create(ERROR);
184        DiagnosticFactory0<JetTypeParameterList> TYPE_PARAMETERS_IN_ENUM = DiagnosticFactory0.create(ERROR);
185        DiagnosticFactory1<JetClass, ClassDescriptor> ENUM_ENTRY_SHOULD_BE_INITIALIZED = DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
186        DiagnosticFactory1<JetTypeReference, ClassDescriptor> ENUM_ENTRY_ILLEGAL_TYPE = DiagnosticFactory1.create(ERROR);
187        DiagnosticFactory1<JetClass, ClassDescriptor> LOCAL_ENUM_NOT_ALLOWED = DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
188    
189        // Default objects
190    
191        DiagnosticFactory0<JetObjectDeclaration> MANY_DEFAULT_OBJECTS = DiagnosticFactory0.create(ERROR);
192        DiagnosticFactory0<JetObjectDeclaration> DEFAULT_OBJECT_NOT_ALLOWED = DiagnosticFactory0.create(ERROR);
193    
194        // Objects
195    
196        DiagnosticFactory1<JetObjectDeclaration, ClassDescriptor> LOCAL_OBJECT_NOT_ALLOWED = DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
197    
198        // Type parameter declarations
199    
200        DiagnosticFactory1<JetTypeReference, JetType> FINAL_UPPER_BOUND = DiagnosticFactory1.create(WARNING);
201        DiagnosticFactory1<JetTypeReference, JetType> FINAL_DEFAULT_OBJECT_UPPER_BOUND = DiagnosticFactory1.create(ERROR);
202        DiagnosticFactory0<JetTypeReference> DYNAMIC_UPPER_BOUND = DiagnosticFactory0.create(ERROR);
203    
204        DiagnosticFactory1<JetNamedDeclaration, TypeParameterDescriptor> CONFLICTING_UPPER_BOUNDS =
205                DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
206        DiagnosticFactory1<JetNamedDeclaration, TypeParameterDescriptor> CONFLICTING_DEFAULT_OBJECT_UPPER_BOUNDS
207                = DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
208    
209        DiagnosticFactory2<JetSimpleNameExpression, JetTypeConstraint, JetTypeParameterListOwner> NAME_IN_CONSTRAINT_IS_NOT_A_TYPE_PARAMETER =
210                DiagnosticFactory2.create(ERROR);
211    
212        DiagnosticFactory0<JetTypeParameter>
213                VARIANCE_ON_TYPE_PARAMETER_OF_FUNCTION_OR_PROPERTY = DiagnosticFactory0.create(ERROR, VARIANCE_MODIFIER);
214    
215        DiagnosticFactory0<PsiElement> REIFIED_TYPE_PARAMETER_NO_INLINE = DiagnosticFactory0.create(ERROR);
216    
217        // Members
218    
219        DiagnosticFactory0<JetModifierListOwner> PACKAGE_MEMBER_CANNOT_BE_PROTECTED =
220                DiagnosticFactory0.create(ERROR, modifierSetPosition(JetTokens.PROTECTED_KEYWORD));
221    
222        DiagnosticFactory0<JetNamedDeclaration> PUBLIC_MEMBER_SHOULD_SPECIFY_TYPE = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
223    
224        DiagnosticFactory2<JetDeclaration, CallableMemberDescriptor, String> CONFLICTING_OVERLOADS =
225                DiagnosticFactory2.create(ERROR, DECLARATION_SIGNATURE_OR_DEFAULT);
226    
227        DiagnosticFactory1<JetAnnotationEntry, String> ILLEGAL_PLATFORM_NAME = DiagnosticFactory1.create(ERROR);
228    
229        DiagnosticFactory0<JetNamedDeclaration> NON_FINAL_MEMBER_IN_FINAL_CLASS = DiagnosticFactory0.create(WARNING, modifierSetPosition(
230                JetTokens.OPEN_KEYWORD));
231    
232        DiagnosticFactory1<JetModifierListOwner, CallableMemberDescriptor> NOTHING_TO_OVERRIDE = DiagnosticFactory1.create(ERROR, OVERRIDE_MODIFIER);
233    
234        DiagnosticFactory3<JetNamedDeclaration, CallableMemberDescriptor, CallableMemberDescriptor, DeclarationDescriptor> VIRTUAL_MEMBER_HIDDEN =
235                DiagnosticFactory3.create(ERROR, DECLARATION_SIGNATURE);
236    
237        DiagnosticFactory2<JetModifierListOwner, CallableMemberDescriptor, CallableDescriptor> CANNOT_OVERRIDE_INVISIBLE_MEMBER =
238                DiagnosticFactory2.create(ERROR, OVERRIDE_MODIFIER);
239    
240        DiagnosticFactory2<JetAnnotationEntry, CallableMemberDescriptor, DeclarationDescriptor> DATA_CLASS_OVERRIDE_CONFLICT =
241                DiagnosticFactory2.create(ERROR);
242    
243        DiagnosticFactory1<JetDeclaration, CallableMemberDescriptor> CANNOT_INFER_VISIBILITY =
244                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE_OR_DEFAULT);
245    
246        DiagnosticFactory2<JetNamedDeclaration, CallableMemberDescriptor, DeclarationDescriptor> OVERRIDING_FINAL_MEMBER =
247                DiagnosticFactory2.create(ERROR, OVERRIDE_MODIFIER);
248    
249        DiagnosticFactory3<JetModifierListOwner, Visibility, CallableMemberDescriptor, DeclarationDescriptor> CANNOT_WEAKEN_ACCESS_PRIVILEGE =
250                DiagnosticFactory3.create(ERROR, VISIBILITY_MODIFIER);
251        DiagnosticFactory3<JetModifierListOwner, Visibility, CallableMemberDescriptor, DeclarationDescriptor> CANNOT_CHANGE_ACCESS_PRIVILEGE =
252                DiagnosticFactory3.create(ERROR, VISIBILITY_MODIFIER);
253        DiagnosticFactory2<JetNamedDeclaration, CallableMemberDescriptor, CallableMemberDescriptor> RETURN_TYPE_MISMATCH_ON_OVERRIDE =
254                DiagnosticFactory2.create(ERROR, DECLARATION_RETURN_TYPE);
255        DiagnosticFactory2<JetNamedDeclaration, CallableMemberDescriptor, CallableMemberDescriptor> PROPERTY_TYPE_MISMATCH_ON_OVERRIDE =
256                DiagnosticFactory2.create(ERROR, DECLARATION_RETURN_TYPE);
257    
258        DiagnosticFactory2<JetClassOrObject, JetClassOrObject, CallableMemberDescriptor> ABSTRACT_MEMBER_NOT_IMPLEMENTED =
259                DiagnosticFactory2.create(ERROR, DECLARATION_NAME);
260        DiagnosticFactory2<JetClassOrObject, JetClassOrObject, CallableMemberDescriptor> MANY_IMPL_MEMBER_NOT_IMPLEMENTED =
261                DiagnosticFactory2.create(ERROR, DECLARATION_NAME);
262    
263        DiagnosticFactory1<JetNamedDeclaration, Collection<JetType>> AMBIGUOUS_ANONYMOUS_TYPE_INFERRED =
264                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE);
265    
266        // Property-specific
267    
268        DiagnosticFactory2<JetProperty, PropertyDescriptor, PropertyDescriptor> VAR_OVERRIDDEN_BY_VAL =
269                DiagnosticFactory2.create(ERROR, VAL_OR_VAR_NODE);
270    
271        DiagnosticFactory0<PsiElement> REDUNDANT_MODIFIER_IN_GETTER = DiagnosticFactory0.create(WARNING);
272        DiagnosticFactory0<PsiElement> GETTER_VISIBILITY_DIFFERS_FROM_PROPERTY_VISIBILITY = DiagnosticFactory0.create(ERROR);
273        DiagnosticFactory2<JetTypeReference, JetType, JetType> WRONG_GETTER_RETURN_TYPE = DiagnosticFactory2.create(ERROR);
274    
275        DiagnosticFactory0<JetModifierListOwner>
276                ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS = DiagnosticFactory0.create(ERROR, ABSTRACT_MODIFIER);
277        DiagnosticFactory0<JetExpression> ABSTRACT_PROPERTY_WITH_INITIALIZER = DiagnosticFactory0.create(ERROR);
278        DiagnosticFactory0<JetPropertyAccessor> ABSTRACT_PROPERTY_WITH_GETTER = DiagnosticFactory0.create(ERROR);
279        DiagnosticFactory0<JetPropertyAccessor> ABSTRACT_PROPERTY_WITH_SETTER = DiagnosticFactory0.create(ERROR);
280    
281        DiagnosticFactory0<JetPropertyDelegate> ABSTRACT_DELEGATED_PROPERTY = DiagnosticFactory0.create(ERROR);
282        DiagnosticFactory0<JetPropertyAccessor> ACCESSOR_FOR_DELEGATED_PROPERTY = DiagnosticFactory0.create(ERROR);
283        DiagnosticFactory0<JetPropertyDelegate> DELEGATED_PROPERTY_IN_TRAIT = DiagnosticFactory0.create(ERROR);
284        DiagnosticFactory0<JetPropertyDelegate> LOCAL_VARIABLE_WITH_DELEGATE = DiagnosticFactory0.create(ERROR);
285    
286        DiagnosticFactory0<JetProperty> PROPERTY_WITH_NO_TYPE_NO_INITIALIZER = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
287    
288        DiagnosticFactory0<JetProperty> MUST_BE_INITIALIZED = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
289        DiagnosticFactory0<JetProperty> MUST_BE_INITIALIZED_OR_BE_ABSTRACT = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
290    
291        DiagnosticFactory0<JetExpression> EXTENSION_PROPERTY_WITH_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
292        DiagnosticFactory0<JetExpression> PROPERTY_INITIALIZER_NO_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
293        DiagnosticFactory0<JetExpression> PROPERTY_INITIALIZER_IN_TRAIT = DiagnosticFactory0.create(ERROR);
294        DiagnosticFactory0<JetProperty> FINAL_PROPERTY_IN_TRAIT = DiagnosticFactory0.create(ERROR, FINAL_MODIFIER);
295        DiagnosticFactory0<JetProperty> BACKING_FIELD_IN_TRAIT = DiagnosticFactory0.create(ERROR, DECLARATION_SIGNATURE);
296    
297        DiagnosticFactory2<JetModifierListOwner, String, ClassDescriptor> ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS = DiagnosticFactory2.create(ERROR, ABSTRACT_MODIFIER);
298    
299        DiagnosticFactory0<JetPropertyAccessor> VAL_WITH_SETTER = DiagnosticFactory0.create(ERROR);
300    
301        DiagnosticFactory0<JetExpression> SETTER_PARAMETER_WITH_DEFAULT_VALUE = DiagnosticFactory0.create(ERROR);
302    
303        DiagnosticFactory2<JetTypeReference, JetType, JetType> WRONG_SETTER_PARAMETER_TYPE = DiagnosticFactory2.create(ERROR);
304    
305        // Function-specific
306    
307        DiagnosticFactory2<JetFunction, String, ClassDescriptor> ABSTRACT_FUNCTION_IN_NON_ABSTRACT_CLASS = DiagnosticFactory2.create(ERROR, ABSTRACT_MODIFIER);
308    
309        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> ABSTRACT_FUNCTION_WITH_BODY = DiagnosticFactory1.create(ERROR, ABSTRACT_MODIFIER);
310        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> NON_ABSTRACT_FUNCTION_WITH_NO_BODY =
311                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE);
312        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> FINAL_FUNCTION_WITH_NO_BODY = DiagnosticFactory1.create(ERROR, FINAL_MODIFIER);
313    
314        DiagnosticFactory1<JetFunction, SimpleFunctionDescriptor> NON_MEMBER_FUNCTION_NO_BODY =
315                DiagnosticFactory1.create(ERROR, DECLARATION_SIGNATURE);
316    
317        DiagnosticFactory0<JetParameter> VALUE_PARAMETER_WITH_NO_TYPE_ANNOTATION = DiagnosticFactory0.create(ERROR);
318    
319        DiagnosticFactory0<JetNamedFunction> NO_TAIL_CALLS_FOUND = DiagnosticFactory0.create(WARNING, DECLARATION_SIGNATURE);
320    
321        // Named parameters
322    
323        DiagnosticFactory0<JetParameter> DEFAULT_VALUE_NOT_ALLOWED_IN_OVERRIDE = DiagnosticFactory0.create(ERROR, PARAMETER_DEFAULT_VALUE);
324    
325        DiagnosticFactory1<JetParameter, ValueParameterDescriptor> MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES = DiagnosticFactory1.create(ERROR);
326    
327        DiagnosticFactory1<JetClassOrObject, ValueParameterDescriptor> MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_WHEN_NO_EXPLICIT_OVERRIDE =
328                DiagnosticFactory1.create(ERROR, DECLARATION_NAME);
329    
330        DiagnosticFactory2<JetParameter, ClassDescriptor, ValueParameterDescriptor> PARAMETER_NAME_CHANGED_ON_OVERRIDE =
331                DiagnosticFactory2.create(WARNING, DECLARATION_NAME);
332    
333        DiagnosticFactory2<JetClassOrObject, Collection<? extends CallableMemberDescriptor>, Integer> DIFFERENT_NAMES_FOR_THE_SAME_PARAMETER_IN_SUPERTYPES =
334                DiagnosticFactory2.create(WARNING, DECLARATION_NAME);
335    
336        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
337    
338        // Errors/warnings inside code blocks
339    
340        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
341    
342        // General
343    
344        DiagnosticFactory1<PsiElement, String> NAME_SHADOWING = DiagnosticFactory1.create(WARNING, PositioningStrategies.FOR_REDECLARATION);
345    
346        DiagnosticFactory0<JetExpression> TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM = DiagnosticFactory0.create(ERROR);
347    
348        // Checking call arguments
349    
350        DiagnosticFactory0<PsiElement> MIXING_NAMED_AND_POSITIONED_ARGUMENTS = DiagnosticFactory0.create(ERROR);
351        DiagnosticFactory0<JetReferenceExpression> ARGUMENT_PASSED_TWICE = DiagnosticFactory0.create(ERROR);
352        DiagnosticFactory1<JetReferenceExpression, JetReferenceExpression> NAMED_PARAMETER_NOT_FOUND =
353                DiagnosticFactory1.create(ERROR, FOR_UNRESOLVED_REFERENCE);
354        DiagnosticFactory0<PsiElement> NAMED_ARGUMENTS_NOT_ALLOWED = DiagnosticFactory0.create(ERROR);
355    
356        DiagnosticFactory0<JetExpression> VARARG_OUTSIDE_PARENTHESES = DiagnosticFactory0.create(ERROR);
357        DiagnosticFactory0<LeafPsiElement> NON_VARARG_SPREAD = DiagnosticFactory0.create(ERROR);
358    
359        DiagnosticFactory0<JetExpression> MANY_FUNCTION_LITERAL_ARGUMENTS = DiagnosticFactory0.create(ERROR);
360    
361        DiagnosticFactory1<PsiElement, CallableDescriptor> TOO_MANY_ARGUMENTS = DiagnosticFactory1.create(ERROR);
362    
363        DiagnosticFactory1<JetElement, ValueParameterDescriptor> NO_VALUE_FOR_PARAMETER = DiagnosticFactory1.create(ERROR, VALUE_ARGUMENTS);
364    
365        DiagnosticFactory1<JetExpression, JetType> MISSING_RECEIVER = DiagnosticFactory1.create(ERROR);
366        DiagnosticFactory0<JetExpression> NO_RECEIVER_ALLOWED = DiagnosticFactory0.create(ERROR);
367    
368        // Call resolution
369    
370        DiagnosticFactory1<JetExpression, String> ILLEGAL_SELECTOR = DiagnosticFactory1.create(ERROR);
371    
372        DiagnosticFactory2<JetExpression, JetExpression, JetType> FUNCTION_EXPECTED = DiagnosticFactory2.create(ERROR);
373        DiagnosticFactory2<JetExpression, JetExpression, Boolean> FUNCTION_CALL_EXPECTED = DiagnosticFactory2.create(ERROR, CALL_EXPRESSION);
374    
375        DiagnosticFactory0<PsiElement> NON_TAIL_RECURSIVE_CALL = DiagnosticFactory0.create(WARNING, CALL_EXPRESSION);
376        DiagnosticFactory0<PsiElement> TAIL_RECURSION_IN_TRY_IS_NOT_SUPPORTED = DiagnosticFactory0.create(WARNING, CALL_EXPRESSION);
377    
378        DiagnosticFactory0<PsiElement> NO_CONSTRUCTOR = DiagnosticFactory0.create(ERROR);
379        DiagnosticFactory0<PsiElement> CREATING_AN_INSTANCE_OF_ABSTRACT_CLASS = DiagnosticFactory0.create(ERROR);
380        DiagnosticFactory0<JetExpression> NOT_A_CLASS = DiagnosticFactory0.create(ERROR);
381    
382        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> OVERLOAD_RESOLUTION_AMBIGUITY = DiagnosticFactory1.create(ERROR);
383        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> NONE_APPLICABLE = DiagnosticFactory1.create(ERROR);
384        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> CANNOT_COMPLETE_RESOLVE = DiagnosticFactory1.create(ERROR);
385        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> UNRESOLVED_REFERENCE_WRONG_RECEIVER = DiagnosticFactory1.create(ERROR);
386    
387        DiagnosticFactory0<JetExpression> DANGLING_FUNCTION_LITERAL_ARGUMENT_SUSPECTED = DiagnosticFactory0.create(WARNING);
388    
389        DiagnosticFactory1<PsiElement, TypeParameterDescriptor> TYPE_PARAMETER_AS_REIFIED = DiagnosticFactory1.create(ERROR);
390        DiagnosticFactory1<PsiElement, JetType> REIFIED_TYPE_FORBIDDEN_SUBSTITUTION = DiagnosticFactory1.create(ERROR);
391    
392        // Type inference
393    
394        DiagnosticFactory0<JetParameter> CANNOT_INFER_PARAMETER_TYPE = DiagnosticFactory0.create(ERROR);
395    
396        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER = DiagnosticFactory1.create(ERROR);
397        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_CONFLICTING_SUBSTITUTIONS = DiagnosticFactory1.create(ERROR);
398        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_CANNOT_CAPTURE_TYPES = DiagnosticFactory1.create(ERROR);
399        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_TYPE_CONSTRUCTOR_MISMATCH = DiagnosticFactory1.create(ERROR);
400        DiagnosticFactory1<PsiElement, InferenceErrorData> TYPE_INFERENCE_UPPER_BOUND_VIOLATED = DiagnosticFactory1.create(ERROR);
401        DiagnosticFactory2<JetExpression, JetType, JetType> TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH = DiagnosticFactory2.create(ERROR);
402    
403        // Reflection
404    
405        DiagnosticFactory0<PsiElement> REFLECTION_TYPES_NOT_LOADED = DiagnosticFactory0.create(ERROR);
406    
407        DiagnosticFactory1<JetExpression, CallableMemberDescriptor> EXTENSION_IN_CLASS_REFERENCE_NOT_ALLOWED = DiagnosticFactory1.create(ERROR);
408        DiagnosticFactory0<JetExpression> CALLABLE_REFERENCE_LHS_NOT_A_CLASS = DiagnosticFactory0.create(ERROR);
409    
410        // Multi-declarations
411    
412        DiagnosticFactory0<JetMultiDeclaration> INITIALIZER_REQUIRED_FOR_MULTIDECLARATION = DiagnosticFactory0.create(ERROR, DEFAULT);
413        DiagnosticFactory2<JetExpression, Name, JetType> COMPONENT_FUNCTION_MISSING = DiagnosticFactory2.create(ERROR, DEFAULT);
414        DiagnosticFactory2<JetExpression, Name, Collection<? extends ResolvedCall<?>>> COMPONENT_FUNCTION_AMBIGUITY = DiagnosticFactory2.create(ERROR, DEFAULT);
415        DiagnosticFactory3<JetExpression, Name, JetType, JetType> COMPONENT_FUNCTION_RETURN_TYPE_MISMATCH = DiagnosticFactory3.create(ERROR, DEFAULT);
416    
417        // Super calls
418    
419        DiagnosticFactory1<JetSuperExpression, String> SUPER_IS_NOT_AN_EXPRESSION = DiagnosticFactory1.create(ERROR);
420        DiagnosticFactory1<JetSuperExpression, String> SUPER_CANT_BE_EXTENSION_RECEIVER = DiagnosticFactory1.create(ERROR);
421        DiagnosticFactory0<JetSuperExpression> SUPER_NOT_AVAILABLE = DiagnosticFactory0.create(ERROR);
422        DiagnosticFactory0<JetSuperExpression> SUPERCLASS_NOT_ACCESSIBLE_FROM_TRAIT = DiagnosticFactory0.create(ERROR);
423        DiagnosticFactory0<JetSuperExpression> AMBIGUOUS_SUPER = DiagnosticFactory0.create(ERROR);
424        DiagnosticFactory0<JetExpression> ABSTRACT_SUPER_CALL = DiagnosticFactory0.create(ERROR);
425        DiagnosticFactory0<JetTypeReference> NOT_A_SUPERTYPE = DiagnosticFactory0.create(ERROR);
426        DiagnosticFactory0<PsiElement> TYPE_ARGUMENTS_REDUNDANT_IN_SUPER_QUALIFIER = DiagnosticFactory0.create(WARNING);
427    
428        // Conventions
429    
430        DiagnosticFactory0<JetArrayAccessExpression> NO_GET_METHOD = DiagnosticFactory0.create(ERROR, ARRAY_ACCESS);
431        DiagnosticFactory0<JetArrayAccessExpression> NO_SET_METHOD = DiagnosticFactory0.create(ERROR, ARRAY_ACCESS);
432    
433        DiagnosticFactory0<JetSimpleNameExpression> INC_DEC_SHOULD_NOT_RETURN_UNIT = DiagnosticFactory0.create(ERROR);
434        DiagnosticFactory2<JetSimpleNameExpression, DeclarationDescriptor, JetSimpleNameExpression> ASSIGNMENT_OPERATOR_SHOULD_RETURN_UNIT =
435                DiagnosticFactory2.create(ERROR);
436        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>>
437                ASSIGN_OPERATOR_AMBIGUITY = DiagnosticFactory1.create(ERROR);
438    
439        DiagnosticFactory0<JetSimpleNameExpression> EQUALS_MISSING = DiagnosticFactory0.create(ERROR);
440        DiagnosticFactory3<JetBinaryExpression, JetSimpleNameExpression, JetType, JetType> EQUALITY_NOT_APPLICABLE =
441                DiagnosticFactory3.create(ERROR);
442    
443    
444        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_MISSING = DiagnosticFactory1.create(ERROR);
445        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_FUNCTION_AMBIGUITY = DiagnosticFactory1.create(ERROR);
446        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_FUNCTION_NONE_APPLICABLE = DiagnosticFactory1.create(ERROR);
447        DiagnosticFactory1<JetExpression, JetType> HAS_NEXT_FUNCTION_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
448    
449        DiagnosticFactory1<JetExpression, JetType> NEXT_AMBIGUITY = DiagnosticFactory1.create(ERROR);
450        DiagnosticFactory1<JetExpression, JetType> NEXT_MISSING = DiagnosticFactory1.create(ERROR);
451        DiagnosticFactory1<JetExpression, JetType> NEXT_NONE_APPLICABLE = DiagnosticFactory1.create(ERROR);
452    
453        DiagnosticFactory0<JetExpression> ITERATOR_MISSING = DiagnosticFactory0.create(ERROR);
454        DiagnosticFactory1<PsiElement, Collection<? extends ResolvedCall<?>>> ITERATOR_AMBIGUITY = DiagnosticFactory1.create(ERROR);
455    
456        DiagnosticFactory2<JetExpression, String, JetType> DELEGATE_SPECIAL_FUNCTION_MISSING = DiagnosticFactory2.create(ERROR);
457        DiagnosticFactory2<JetExpression, String, Collection<? extends ResolvedCall<?>>> DELEGATE_SPECIAL_FUNCTION_AMBIGUITY = DiagnosticFactory2.create(ERROR);
458        DiagnosticFactory2<JetExpression, String, Collection<? extends ResolvedCall<?>>> DELEGATE_SPECIAL_FUNCTION_NONE_APPLICABLE = DiagnosticFactory2.create(ERROR);
459        DiagnosticFactory3<JetExpression, String, JetType, JetType> DELEGATE_SPECIAL_FUNCTION_RETURN_TYPE_MISMATCH = DiagnosticFactory3.create(ERROR);
460        DiagnosticFactory2<JetExpression, String, Collection<? extends ResolvedCall<?>>> DELEGATE_PD_METHOD_NONE_APPLICABLE = DiagnosticFactory2.create(WARNING);
461    
462        DiagnosticFactory1<JetSimpleNameExpression, JetType> COMPARE_TO_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
463    
464        // Labels
465    
466        DiagnosticFactory0<JetSimpleNameExpression> LABEL_NAME_CLASH = DiagnosticFactory0.create(WARNING);
467        DiagnosticFactory0<JetSimpleNameExpression> AMBIGUOUS_LABEL = DiagnosticFactory0.create(ERROR);
468    
469        DiagnosticFactory0<JetExpressionWithLabel> BREAK_OR_CONTINUE_OUTSIDE_A_LOOP = DiagnosticFactory0.create(ERROR);
470        DiagnosticFactory0<JetExpressionWithLabel> BREAK_OR_CONTINUE_JUMPS_ACROSS_FUNCTION_BOUNDARY = DiagnosticFactory0.create(ERROR);
471        DiagnosticFactory1<JetExpressionWithLabel, String> NOT_A_LOOP_LABEL = DiagnosticFactory1.create(ERROR);
472        DiagnosticFactory1<JetReturnExpression, String> NOT_A_RETURN_LABEL = DiagnosticFactory1.create(ERROR);
473    
474        // Control flow / Data flow
475    
476        DiagnosticFactory1<JetElement, List<TextRange>> UNREACHABLE_CODE = DiagnosticFactory1.create(
477                WARNING, PositioningStrategies.UNREACHABLE_CODE);
478    
479        DiagnosticFactory0<JetVariableDeclaration> VARIABLE_WITH_NO_TYPE_NO_INITIALIZER = DiagnosticFactory0.create(ERROR, DECLARATION_NAME);
480    
481        DiagnosticFactory1<JetSimpleNameExpression, VariableDescriptor> UNINITIALIZED_VARIABLE = DiagnosticFactory1.create(ERROR);
482        DiagnosticFactory1<JetSimpleNameExpression, ValueParameterDescriptor> UNINITIALIZED_PARAMETER = DiagnosticFactory1.create(ERROR);
483    
484        DiagnosticFactory1<JetNamedDeclaration, VariableDescriptor> UNUSED_VARIABLE = DiagnosticFactory1.create(WARNING, DECLARATION_NAME);
485        DiagnosticFactory1<JetParameter, VariableDescriptor> UNUSED_PARAMETER = DiagnosticFactory1.create(WARNING, DECLARATION_NAME);
486    
487        DiagnosticFactory1<JetNamedDeclaration, VariableDescriptor> ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE =
488                DiagnosticFactory1.create(WARNING, DECLARATION_NAME);
489        DiagnosticFactory1<JetExpression, DeclarationDescriptor> VARIABLE_WITH_REDUNDANT_INITIALIZER = DiagnosticFactory1.create(WARNING);
490        DiagnosticFactory2<JetElement, JetElement, DeclarationDescriptor> UNUSED_VALUE = DiagnosticFactory2.create(WARNING);
491        DiagnosticFactory1<JetElement, JetElement> UNUSED_CHANGED_VALUE = DiagnosticFactory1.create(WARNING);
492        DiagnosticFactory0<JetElement> UNUSED_EXPRESSION = DiagnosticFactory0.create(WARNING);
493        DiagnosticFactory0<JetFunctionLiteralExpression> UNUSED_FUNCTION_LITERAL = DiagnosticFactory0.create(WARNING);
494    
495        DiagnosticFactory1<JetExpression, DeclarationDescriptor> VAL_REASSIGNMENT = DiagnosticFactory1.create(ERROR);
496        DiagnosticFactory1<JetExpression, DeclarationDescriptor> SETTER_PROJECTED_OUT = DiagnosticFactory1.create(ERROR);
497    
498        DiagnosticFactory1<JetExpression, DeclarationDescriptor> INITIALIZATION_BEFORE_DECLARATION = DiagnosticFactory1.create(ERROR);
499    
500        DiagnosticFactory0<JetExpression> VARIABLE_EXPECTED = DiagnosticFactory0.create(ERROR);
501    
502        DiagnosticFactory2<JetBinaryExpression, JetBinaryExpression, Boolean> SENSELESS_COMPARISON = DiagnosticFactory2.create(WARNING);
503    
504        DiagnosticFactory0<JetElement> SENSELESS_NULL_IN_WHEN = DiagnosticFactory0.create(WARNING);
505    
506        // Nullability
507    
508        DiagnosticFactory1<PsiElement, JetType> UNSAFE_CALL = DiagnosticFactory1.create(ERROR);
509        DiagnosticFactory3<JetExpression, String, String, String> UNSAFE_INFIX_CALL = DiagnosticFactory3.create(ERROR);
510        DiagnosticFactory1<PsiElement, JetType> UNNECESSARY_SAFE_CALL = DiagnosticFactory1.create(WARNING);
511        DiagnosticFactory1<PsiElement, JetType> UNNECESSARY_NOT_NULL_ASSERTION = DiagnosticFactory1.create(WARNING);
512    
513        DiagnosticFactory1<JetExpression, JetType> USELESS_ELVIS = DiagnosticFactory1.create(WARNING);
514    
515        // Compile-time values
516    
517        DiagnosticFactory0<JetExpression> INTEGER_OVERFLOW = DiagnosticFactory0.create(WARNING);
518        DiagnosticFactory0<JetConstantExpression> WRONG_LONG_SUFFIX = DiagnosticFactory0.create(ERROR, LONG_LITERAL_SUFFIX);
519        DiagnosticFactory0<JetConstantExpression> INT_LITERAL_OUT_OF_RANGE = DiagnosticFactory0.create(ERROR);
520        DiagnosticFactory0<JetConstantExpression> FLOAT_LITERAL_OUT_OF_RANGE = DiagnosticFactory0.create(ERROR);
521        DiagnosticFactory2<JetConstantExpression, String, JetType> CONSTANT_EXPECTED_TYPE_MISMATCH = DiagnosticFactory2.create(ERROR);
522        DiagnosticFactory0<JetConstantExpression> INCORRECT_CHARACTER_LITERAL = DiagnosticFactory0.create(ERROR);
523        DiagnosticFactory0<JetConstantExpression> EMPTY_CHARACTER_LITERAL = DiagnosticFactory0.create(ERROR);
524        DiagnosticFactory1<JetConstantExpression, JetConstantExpression> TOO_MANY_CHARACTERS_IN_CHARACTER_LITERAL = DiagnosticFactory1.create(ERROR);
525        DiagnosticFactory1<JetElement, JetElement> ILLEGAL_ESCAPE = DiagnosticFactory1.create(ERROR, CUT_CHAR_QUOTES);
526        DiagnosticFactory1<JetConstantExpression, JetType> NULL_FOR_NONNULL_TYPE = DiagnosticFactory1.create(ERROR);
527        DiagnosticFactory0<JetEscapeStringTemplateEntry> ILLEGAL_ESCAPE_SEQUENCE = DiagnosticFactory0.create(ERROR);
528    
529        // Casts and is-checks
530    
531        DiagnosticFactory1<JetElement, JetType> CANNOT_CHECK_FOR_ERASED = DiagnosticFactory1.create(ERROR);
532        DiagnosticFactory2<JetBinaryExpressionWithTypeRHS, JetType, JetType> UNCHECKED_CAST = DiagnosticFactory2.create(WARNING);
533    
534        DiagnosticFactory0<JetBinaryExpressionWithTypeRHS> USELESS_CAST_STATIC_ASSERT_IS_FINE = DiagnosticFactory0.create(WARNING, AS_TYPE);
535        DiagnosticFactory0<JetBinaryExpressionWithTypeRHS> USELESS_CAST = DiagnosticFactory0.create(WARNING, AS_TYPE);
536        DiagnosticFactory0<JetSimpleNameExpression> CAST_NEVER_SUCCEEDS = DiagnosticFactory0.create(WARNING);
537        DiagnosticFactory0<JetTypeReference> DYNAMIC_NOT_ALLOWED = DiagnosticFactory0.create(ERROR);
538    
539        DiagnosticFactory1<JetExpression, JetType> IMPLICIT_CAST_TO_UNIT_OR_ANY = DiagnosticFactory1.create(WARNING);
540    
541        DiagnosticFactory2<JetExpression, JetType, String> SMARTCAST_IMPOSSIBLE = DiagnosticFactory2.create(ERROR);
542    
543        DiagnosticFactory0<JetNullableType> USELESS_NULLABLE_CHECK = DiagnosticFactory0.create(WARNING, NULLABLE_TYPE);
544    
545        // Properties / locals
546    
547        DiagnosticFactory1<JetExpression, DeclarationDescriptor> INITIALIZATION_USING_BACKING_FIELD_CUSTOM_SETTER = DiagnosticFactory1.create(ERROR);
548        DiagnosticFactory1<JetExpression, DeclarationDescriptor> INITIALIZATION_USING_BACKING_FIELD_OPEN_SETTER = DiagnosticFactory1.create(ERROR);
549    
550        DiagnosticFactory0<JetTypeReference> LOCAL_EXTENSION_PROPERTY = DiagnosticFactory0.create(ERROR);
551        DiagnosticFactory0<JetPropertyAccessor> LOCAL_VARIABLE_WITH_GETTER = DiagnosticFactory0.create(ERROR);
552        DiagnosticFactory0<JetPropertyAccessor> LOCAL_VARIABLE_WITH_SETTER = DiagnosticFactory0.create(ERROR);
553    
554        DiagnosticFactory3<JetExpression, DeclarationDescriptor, Visibility, DeclarationDescriptor> INVISIBLE_SETTER = DiagnosticFactory3.create(ERROR);
555    
556        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_LOOP_PARAMETER = DiagnosticFactory1.create(ERROR);
557        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_FUN_PARAMETER = DiagnosticFactory1.create(ERROR);
558        DiagnosticFactory1<PsiElement, JetKeywordToken> VAL_OR_VAR_ON_CATCH_PARAMETER = DiagnosticFactory1.create(ERROR);
559    
560        // Backing fields
561    
562        DiagnosticFactory0<JetElement> NO_BACKING_FIELD_ABSTRACT_PROPERTY = DiagnosticFactory0.create(ERROR);
563        DiagnosticFactory0<JetElement> NO_BACKING_FIELD_CUSTOM_ACCESSORS = DiagnosticFactory0.create(ERROR);
564        DiagnosticFactory0<JetElement> INACCESSIBLE_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
565        DiagnosticFactory0<JetElement> NOT_PROPERTY_BACKING_FIELD = DiagnosticFactory0.create(ERROR);
566    
567        // When expressions
568    
569        DiagnosticFactory0<JetWhenCondition> EXPECTED_CONDITION = DiagnosticFactory0.create(ERROR);
570        DiagnosticFactory0<JetWhenEntry> ELSE_MISPLACED_IN_WHEN = DiagnosticFactory0.create(ERROR, ELSE_ENTRY);
571        DiagnosticFactory0<JetWhenExpression> NO_ELSE_IN_WHEN = DiagnosticFactory0.create(ERROR, WHEN_EXPRESSION);
572    
573        // Type mismatch
574    
575        DiagnosticFactory2<JetExpression, JetType, JetType> TYPE_MISMATCH = DiagnosticFactory2.create(ERROR);
576        DiagnosticFactory1<JetExpression, JetType> RETURN_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
577        DiagnosticFactory1<JetExpression, JetType> EXPECTED_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
578        DiagnosticFactory1<JetBinaryExpression, JetType> ASSIGNMENT_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
579        DiagnosticFactory2<JetTypeReference, JetType, JetType> TYPE_MISMATCH_IN_FOR_LOOP = DiagnosticFactory2.create(ERROR);
580        DiagnosticFactory1<JetElement, JetType> TYPE_MISMATCH_IN_CONDITION = DiagnosticFactory1.create(ERROR);
581        DiagnosticFactory3<JetExpression, String, JetType, JetType> RESULT_TYPE_MISMATCH = DiagnosticFactory3.create(ERROR);
582        DiagnosticFactory0<JetWhenConditionInRange> TYPE_MISMATCH_IN_RANGE = DiagnosticFactory0.create(ERROR, WHEN_CONDITION_IN_RANGE);
583    
584        DiagnosticFactory1<JetParameter, JetType> EXPECTED_PARAMETER_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
585        DiagnosticFactory1<JetTypeReference, JetType> EXPECTED_RETURN_TYPE_MISMATCH = DiagnosticFactory1.create(ERROR);
586        DiagnosticFactory2<JetFunctionLiteral, Integer, List<JetType>> EXPECTED_PARAMETERS_NUMBER_MISMATCH =
587                DiagnosticFactory2.create(ERROR, FUNCTION_LITERAL_PARAMETERS);
588    
589        DiagnosticFactory2<JetElement, JetType, JetType> INCOMPATIBLE_TYPES = DiagnosticFactory2.create(ERROR);
590    
591        // Context tracking
592    
593        DiagnosticFactory1<JetExpression, JetExpression> EXPRESSION_EXPECTED = DiagnosticFactory1.create(ERROR);
594        DiagnosticFactory0<JetBinaryExpression> ASSIGNMENT_IN_EXPRESSION_CONTEXT = DiagnosticFactory0.create(ERROR);
595        DiagnosticFactory0<JetDeclaration> DECLARATION_IN_ILLEGAL_CONTEXT = DiagnosticFactory0.create(ERROR);
596    
597        DiagnosticFactory0<JetSimpleNameExpression> EXPRESSION_EXPECTED_PACKAGE_FOUND = DiagnosticFactory0.create(ERROR);
598    
599        DiagnosticFactory0<JetReturnExpression> RETURN_NOT_ALLOWED = DiagnosticFactory0.create(ERROR);
600        DiagnosticFactory0<JetReturnExpression> RETURN_IN_FUNCTION_WITH_EXPRESSION_BODY = DiagnosticFactory0.create(ERROR);
601        DiagnosticFactory0<JetDeclarationWithBody>
602                NO_RETURN_IN_FUNCTION_WITH_BLOCK_BODY = DiagnosticFactory0.create(ERROR, DECLARATION_WITH_BODY);
603    
604        DiagnosticFactory0<JetClassInitializer> ANONYMOUS_INITIALIZER_IN_TRAIT = DiagnosticFactory0.create(ERROR);
605    
606        DiagnosticFactory0<JetThisExpression> NO_THIS = DiagnosticFactory0.create(ERROR);
607        DiagnosticFactory0<JetRootPackageExpression> PACKAGE_IS_NOT_AN_EXPRESSION = DiagnosticFactory0.create(ERROR);
608        DiagnosticFactory1<JetSimpleNameExpression, ClassifierDescriptor> NO_DEFAULT_OBJECT = DiagnosticFactory1.create(ERROR);
609        DiagnosticFactory1<JetSimpleNameExpression, TypeParameterDescriptor> TYPE_PARAMETER_IS_NOT_AN_EXPRESSION = DiagnosticFactory1.create(ERROR);
610        DiagnosticFactory1<JetSimpleNameExpression, TypeParameterDescriptor> TYPE_PARAMETER_ON_LHS_OF_DOT = DiagnosticFactory1.create(ERROR);
611        DiagnosticFactory1<JetExpression, ClassDescriptor> NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE = DiagnosticFactory1.create(ERROR);
612        DiagnosticFactory2<JetExpression, ClassDescriptor, String> NESTED_CLASS_SHOULD_BE_QUALIFIED = DiagnosticFactory2.create(ERROR);
613    
614        DiagnosticFactory1<PsiElement, ClassDescriptor> INACCESSIBLE_OUTER_CLASS_EXPRESSION = DiagnosticFactory1.create(ERROR);
615        DiagnosticFactory0<JetClass> NESTED_CLASS_NOT_ALLOWED = DiagnosticFactory0.create(ERROR, DECLARATION_NAME);
616    
617        DiagnosticFactory0<JetModifierListOwner> INNER_CLASS_IN_TRAIT = DiagnosticFactory0.create(ERROR, PositioningStrategies.INNER_MODIFIER);
618        DiagnosticFactory0<JetModifierListOwner> INNER_CLASS_IN_OBJECT = DiagnosticFactory0.create(ERROR, PositioningStrategies.INNER_MODIFIER);
619    
620        //Inline and inlinable parameters
621        DiagnosticFactory2<JetElement, DeclarationDescriptor, DeclarationDescriptor> INVISIBLE_MEMBER_FROM_INLINE = DiagnosticFactory2.create(ERROR, CALL_ELEMENT);
622        DiagnosticFactory3<JetElement, JetElement, DeclarationDescriptor, DeclarationDescriptor> NON_LOCAL_RETURN_NOT_ALLOWED = DiagnosticFactory3.create(ERROR, CALL_ELEMENT);
623        DiagnosticFactory2<JetElement, JetNamedDeclaration, DeclarationDescriptor> NOT_YET_SUPPORTED_IN_INLINE = DiagnosticFactory2.create(ERROR);
624        DiagnosticFactory1<JetFunction, DeclarationDescriptor> NOTHING_TO_INLINE = DiagnosticFactory1.create(WARNING, DECLARATION_SIGNATURE);
625        DiagnosticFactory2<JetElement, JetExpression, DeclarationDescriptor> USAGE_IS_NOT_INLINABLE = DiagnosticFactory2.create(ERROR);
626        DiagnosticFactory2<JetElement, JetElement, DeclarationDescriptor> NULLABLE_INLINE_PARAMETER = DiagnosticFactory2.create(ERROR);
627        DiagnosticFactory2<JetElement, JetElement, DeclarationDescriptor> RECURSION_IN_INLINE = DiagnosticFactory2.create(ERROR);
628        DiagnosticFactory0<JetElement> DECLARATION_CANT_BE_INLINED = DiagnosticFactory0.create(ERROR);
629    
630        // Error sets
631        ImmutableSet<? extends DiagnosticFactory<?>> UNRESOLVED_REFERENCE_DIAGNOSTICS = ImmutableSet.of(
632                UNRESOLVED_REFERENCE, NAMED_PARAMETER_NOT_FOUND, UNRESOLVED_REFERENCE_WRONG_RECEIVER);
633        ImmutableSet<? extends DiagnosticFactory<?>> INVISIBLE_REFERENCE_DIAGNOSTICS = ImmutableSet.of(
634                INVISIBLE_MEMBER, INVISIBLE_MEMBER_FROM_INLINE, INVISIBLE_REFERENCE, INVISIBLE_SETTER);
635        ImmutableSet<? extends DiagnosticFactory<?>> UNUSED_ELEMENT_DIAGNOSTICS = ImmutableSet.of(
636                UNUSED_VARIABLE, UNUSED_PARAMETER, ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE, VARIABLE_WITH_REDUNDANT_INITIALIZER,
637                UNUSED_FUNCTION_LITERAL, USELESS_CAST, USELESS_CAST_STATIC_ASSERT_IS_FINE);
638        ImmutableSet<? extends DiagnosticFactory<?>> TYPE_INFERENCE_ERRORS = ImmutableSet.of(
639                TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER, TYPE_INFERENCE_CONFLICTING_SUBSTITUTIONS, TYPE_INFERENCE_TYPE_CONSTRUCTOR_MISMATCH,
640                TYPE_INFERENCE_UPPER_BOUND_VIOLATED, TYPE_INFERENCE_EXPECTED_TYPE_MISMATCH);
641    
642        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
643    
644        // This field is needed to make the Initializer class load (interfaces cannot have static initializers)
645    
646        ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
647        @SuppressWarnings("UnusedDeclaration")
648        Initializer __initializer = Initializer.INSTANCE;
649    
650        class Initializer {
651            static {
652                initializeFactoryNames(Errors.class);
653            }
654    
655            public static void initializeFactoryNames(@NotNull Class<?> aClass) {
656                for (Field field : aClass.getFields()) {
657                    if (Modifier.isStatic(field.getModifiers())) {
658                        try {
659                            Object value = field.get(null);
660                            if (value instanceof DiagnosticFactory) {
661                                DiagnosticFactory<?> factory = (DiagnosticFactory<?>)value;
662                                factory.setName(field.getName());
663                            }
664                        }
665                        catch (IllegalAccessException e) {
666                            throw new IllegalStateException(e);
667                        }
668                    }
669                }
670            }
671    
672            private static final Initializer INSTANCE = new Initializer();
673    
674            private Initializer() {
675            }
676        }
677    }