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TypeDeclaration.java
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TypeDeclaration.java
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/*******************************************************************************
* Copyright (c) 2000, 2020 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Stephan Herrmann - Contributions for
* Bug 360328 - [compiler][null] detect null problems in nested code (local class inside a loop)
* Bug 388630 - @NonNull diagnostics at line 0
* Bug 392099 - [1.8][compiler][null] Apply null annotation on types for null analysis
* Bug 416176 - [1.8][compiler][null] null type annotations cause grief on type variables
* Bug 424727 - [compiler][null] NullPointerException in nullAnnotationUnsupportedLocation(ProblemReporter.java:5708)
* Bug 457210 - [1.8][compiler][null] Wrong Nullness errors given on full build build but not on incremental build?
* Keigo Imai - Contribution for bug 388903 - Cannot extend inner class as an anonymous class when it extends the outer class
* Pierre-Yves B. <pyvesdev@gmail.com> - Contributions for
* Bug 542520 - [JUnit 5] Warning The method xxx from the type X is never used locally is shown when using MethodSource
* Bug 546084 - Using Junit 5s MethodSource leads to ClassCastException
*******************************************************************************/
package org.eclipse.jdt.internal.compiler.ast;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import org.eclipse.jdt.core.compiler.*;
import org.eclipse.jdt.internal.compiler.*;
import org.eclipse.jdt.internal.compiler.impl.*;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.codegen.*;
import org.eclipse.jdt.internal.compiler.flow.*;
import org.eclipse.jdt.internal.compiler.lookup.*;
import org.eclipse.jdt.internal.compiler.parser.*;
import org.eclipse.jdt.internal.compiler.problem.*;
import org.eclipse.jdt.internal.compiler.util.SimpleSetOfCharArray;
import org.eclipse.jdt.internal.compiler.util.Util;
public class TypeDeclaration extends Statement implements ProblemSeverities, ReferenceContext {
// Type decl kinds
public static final int CLASS_DECL = 1;
public static final int INTERFACE_DECL = 2;
public static final int ENUM_DECL = 3;
public static final int ANNOTATION_TYPE_DECL = 4;
/*
* @noreference This field is not intended to be referenced by clients as it is a part of Java preview feature.
*/
public static final int RECORD_DECL = 5;
public int modifiers = ClassFileConstants.AccDefault;
public int modifiersSourceStart;
public int functionalExpressionsCount = 0;
public Annotation[] annotations;
public char[] name;
public TypeReference superclass;
public TypeReference[] superInterfaces;
public FieldDeclaration[] fields;
public AbstractMethodDeclaration[] methods;
public TypeDeclaration[] memberTypes;
public SourceTypeBinding binding;
public ClassScope scope;
public MethodScope initializerScope;
public MethodScope staticInitializerScope;
public boolean ignoreFurtherInvestigation = false;
public int maxFieldCount;
public int declarationSourceStart;
public int declarationSourceEnd;
public int restrictedIdentifierStart = -1; // used only for record and permits restricted keywords.
public int bodyStart;
public int bodyEnd; // doesn't include the trailing comment if any.
public CompilationResult compilationResult;
public MethodDeclaration[] missingAbstractMethods;
public Javadoc javadoc;
public QualifiedAllocationExpression allocation; // for anonymous only
public TypeDeclaration enclosingType; // for member types only
public FieldBinding enumValuesSyntheticfield; // for enum
public int enumConstantsCounter;
// 1.5 support
public TypeParameter[] typeParameters;
// 14 Records preview support
public RecordComponent[] recordComponents;
public int nRecordComponents;
public static Set<String> disallowedComponentNames;
// 15 Sealed Type preview support
public TypeReference[] permittedTypes;
// TEST ONLY: disable one fix here to challenge another related fix (in TypeSystem):
public static boolean TESTING_GH_2158 = false;
static {
disallowedComponentNames = new HashSet<>(6);
disallowedComponentNames.add("clone"); //$NON-NLS-1$
disallowedComponentNames.add("finalize"); //$NON-NLS-1$
disallowedComponentNames.add("getClass"); //$NON-NLS-1$
disallowedComponentNames.add("hashCode"); //$NON-NLS-1$
disallowedComponentNames.add("notify"); //$NON-NLS-1$
disallowedComponentNames.add("notifyAll");//$NON-NLS-1$
disallowedComponentNames.add("toString"); //$NON-NLS-1$
disallowedComponentNames.add("wait"); //$NON-NLS-1$
}
public TypeDeclaration(CompilationResult compilationResult){
this.compilationResult = compilationResult;
}
/*
* We cause the compilation task to abort to a given extent.
*/
@Override
public void abort(int abortLevel, CategorizedProblem problem) {
switch (abortLevel) {
case AbortCompilation :
throw new AbortCompilation(this.compilationResult, problem);
case AbortCompilationUnit :
throw new AbortCompilationUnit(this.compilationResult, problem);
case AbortMethod :
throw new AbortMethod(this.compilationResult, problem);
default :
throw new AbortType(this.compilationResult, problem);
}
}
/**
* This method is responsible for adding a {@code <clinit>} method declaration to the type method collections.
* Note that this implementation is inserting it in first place (as VAJ or javac), and that this
* impacts the behavior of the method ConstantPool.resetForClinit(int. int), in so far as
* the latter will have to reset the constant pool state accordingly (if it was added first, it does
* not need to preserve some of the method specific cached entries since this will be the first method).
* inserts the clinit method declaration in the first position.
*
* @see org.eclipse.jdt.internal.compiler.codegen.ConstantPool#resetForClinit(int, int)
*/
public final void addClinit() {
//see comment on needClassInitMethod
if (needClassInitMethod()) {
int length;
AbstractMethodDeclaration[] methodDeclarations;
if ((methodDeclarations = this.methods) == null) {
length = 0;
methodDeclarations = new AbstractMethodDeclaration[1];
} else {
length = methodDeclarations.length;
System.arraycopy(
methodDeclarations,
0,
(methodDeclarations = new AbstractMethodDeclaration[length + 1]),
1,
length);
}
Clinit clinit = new Clinit(this.compilationResult);
methodDeclarations[0] = clinit;
// clinit is added in first location, so as to minimize the use of ldcw (big consumer of constant inits)
clinit.declarationSourceStart = clinit.sourceStart = this.sourceStart;
clinit.declarationSourceEnd = clinit.sourceEnd = this.sourceEnd;
clinit.bodyEnd = this.sourceEnd;
this.methods = methodDeclarations;
}
}
/*
* INTERNAL USE ONLY - Creates a fake method declaration for the corresponding binding.
* It is used to report errors for missing abstract methods.
*/
public MethodDeclaration addMissingAbstractMethodFor(MethodBinding methodBinding) {
TypeBinding[] argumentTypes = methodBinding.parameters;
int argumentsLength = argumentTypes.length;
//the constructor
MethodDeclaration methodDeclaration = new MethodDeclaration(this.compilationResult);
methodDeclaration.selector = methodBinding.selector;
methodDeclaration.sourceStart = this.sourceStart;
methodDeclaration.sourceEnd = this.sourceEnd;
methodDeclaration.modifiers = methodBinding.getAccessFlags() & ~ClassFileConstants.AccAbstract;
if (argumentsLength > 0) {
String baseName = "arg";//$NON-NLS-1$
Argument[] arguments = (methodDeclaration.arguments = new Argument[argumentsLength]);
for (int i = argumentsLength; --i >= 0;) {
arguments[i] = new Argument((baseName + i).toCharArray(), 0L, null /*type ref*/, ClassFileConstants.AccDefault);
}
}
//adding the constructor in the methods list
if (this.missingAbstractMethods == null) {
this.missingAbstractMethods = new MethodDeclaration[] { methodDeclaration };
} else {
MethodDeclaration[] newMethods;
System.arraycopy(
this.missingAbstractMethods,
0,
newMethods = new MethodDeclaration[this.missingAbstractMethods.length + 1],
1,
this.missingAbstractMethods.length);
newMethods[0] = methodDeclaration;
this.missingAbstractMethods = newMethods;
}
//============BINDING UPDATE==========================
methodDeclaration.binding = new MethodBinding(
methodDeclaration.modifiers | ClassFileConstants.AccSynthetic, //methodDeclaration
methodBinding.selector,
methodBinding.returnType,
argumentsLength == 0 ? Binding.NO_PARAMETERS : argumentTypes, //arguments bindings
methodBinding.thrownExceptions, //exceptions
this.binding); //declaringClass
methodDeclaration.scope = new MethodScope(this.scope, methodDeclaration, true);
methodDeclaration.bindArguments();
/* if (binding.methods == null) {
binding.methods = new MethodBinding[] { methodDeclaration.binding };
} else {
MethodBinding[] newMethods;
System.arraycopy(
binding.methods,
0,
newMethods = new MethodBinding[binding.methods.length + 1],
1,
binding.methods.length);
newMethods[0] = methodDeclaration.binding;
binding.methods = newMethods;
}*/
//===================================================
return methodDeclaration;
}
/**
* Flow analysis for a local innertype
*/
@Override
public FlowInfo analyseCode(BlockScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
if (this.ignoreFurtherInvestigation)
return flowInfo;
try {
if ((flowInfo.tagBits & FlowInfo.UNREACHABLE_OR_DEAD) == 0) {
this.bits |= ASTNode.IsReachable;
LocalTypeBinding localType = (LocalTypeBinding) this.binding;
localType.setConstantPoolName(currentScope.compilationUnitScope().computeConstantPoolName(localType));
}
manageEnclosingInstanceAccessIfNecessary(currentScope, flowInfo);
updateMaxFieldCount(); // propagate down the max field count
internalAnalyseCode(flowContext, flowInfo);
} catch (AbortType e) {
this.ignoreFurtherInvestigation = true;
}
return flowInfo;
}
/**
* Flow analysis for a member innertype
*/
public void analyseCode(ClassScope enclosingClassScope) {
if (this.ignoreFurtherInvestigation)
return;
try {
// propagate down the max field count
updateMaxFieldCount();
internalAnalyseCode(null, FlowInfo.initial(this.maxFieldCount));
} catch (AbortType e) {
this.ignoreFurtherInvestigation = true;
}
}
/**
* Flow analysis for a local member innertype
*/
public void analyseCode(ClassScope currentScope, FlowContext flowContext, FlowInfo flowInfo) {
if (this.ignoreFurtherInvestigation)
return;
try {
if ((flowInfo.tagBits & FlowInfo.UNREACHABLE_OR_DEAD) == 0) {
this.bits |= ASTNode.IsReachable;
LocalTypeBinding localType = (LocalTypeBinding) this.binding;
localType.setConstantPoolName(currentScope.compilationUnitScope().computeConstantPoolName(localType));
}
manageEnclosingInstanceAccessIfNecessary(currentScope, flowInfo);
updateMaxFieldCount(); // propagate down the max field count
internalAnalyseCode(flowContext, flowInfo);
} catch (AbortType e) {
this.ignoreFurtherInvestigation = true;
}
}
/**
* Flow analysis for a package member type
*/
public void analyseCode(CompilationUnitScope unitScope) {
if (this.ignoreFurtherInvestigation)
return;
try {
internalAnalyseCode(null, FlowInfo.initial(this.maxFieldCount));
} catch (AbortType e) {
this.ignoreFurtherInvestigation = true;
}
}
/**
* Check for constructor vs. method with no return type.
* Answers true if at least one constructor is defined
*/
public boolean checkConstructors(Parser parser) {
//if a constructor has not the name of the type,
//convert it into a method with 'null' as its return type
boolean hasConstructor = false;
if (this.methods != null) {
for (int i = this.methods.length; --i >= 0;) {
AbstractMethodDeclaration am;
if ((am = this.methods[i]).isConstructor()) {
if (!CharOperation.equals(am.selector, this.name)) {
// the constructor was in fact a method with no return type
// unless an explicit constructor call was supplied
ConstructorDeclaration c = (ConstructorDeclaration) am;
if (c.constructorCall == null || c.constructorCall.isImplicitSuper()) { //changed to a method
MethodDeclaration m = parser.convertToMethodDeclaration(c, this.compilationResult);
this.methods[i] = m;
}
} else {
switch (kind(this.modifiers)) {
case TypeDeclaration.INTERFACE_DECL :
// report the problem and continue the parsing
parser.problemReporter().interfaceCannotHaveConstructors((ConstructorDeclaration) am);
break;
case TypeDeclaration.ANNOTATION_TYPE_DECL :
// report the problem and continue the parsing
parser.problemReporter().annotationTypeDeclarationCannotHaveConstructor((ConstructorDeclaration) am);
break;
}
hasConstructor = true;
}
}
}
}
return hasConstructor;
}
@Override
public CompilationResult compilationResult() {
return this.compilationResult;
}
public ConstructorDeclaration createDefaultConstructorForRecord(boolean needExplicitConstructorCall, boolean needToInsert) {
//Add to method'set, the default constuctor that just recall the
//super constructor with no arguments
//The arguments' type will be positionned by the TC so just use
//the default int instead of just null (consistency purpose)
ConstructorDeclaration constructor = new ConstructorDeclaration(this.compilationResult);
constructor.bits |= ASTNode.IsCanonicalConstructor | ASTNode.IsImplicit;
constructor.selector = this.name;
constructor.modifiers = this.modifiers & ExtraCompilerModifiers.AccVisibilityMASK;
// constructor.modifiers = this.modifiers & ClassFileConstants.AccPublic;
// constructor.modifiers |= ClassFileConstants.AccPublic; // JLS 14 8.10.5
constructor.arguments = getArgumentsFromComponents(this.recordComponents);
for (Argument argument : constructor.arguments) {
if ((argument.bits & ASTNode.HasTypeAnnotations) != 0) {
constructor.bits |= ASTNode.HasTypeAnnotations;
break;
}
}
constructor.declarationSourceStart = constructor.sourceStart =
constructor.bodyStart = this.sourceStart;
constructor.declarationSourceEnd =
constructor.sourceEnd = constructor.bodyEnd = this.sourceStart - 1;
//the super call inside the constructor
if (needExplicitConstructorCall) {
constructor.constructorCall = SuperReference.implicitSuperConstructorCall();
constructor.constructorCall.sourceStart = this.sourceStart;
constructor.constructorCall.sourceEnd = this.sourceEnd;
}
/* The body of the implicitly declared canonical constructor initializes each field corresponding
* to a record component with the corresponding formal parameter in the order that they appear
* in the record component list.*/
List<Statement> statements = new ArrayList<>();
int l = this.recordComponents != null ? this.recordComponents.length : 0;
if (l > 0 && this.fields != null) {
List<String> fNames = Arrays.stream(this.fields)
.filter(f -> f.isARecordComponent)
.map(f ->new String(f.name))
.collect(Collectors.toList());
for (int i = 0; i < l; ++i) {
RecordComponent component = this.recordComponents[i];
if (!fNames.contains(new String(component.name)))
continue;
FieldReference lhs = new FieldReference(component.name, 0);
lhs.receiver = ThisReference.implicitThis();
statements.add(new Assignment(lhs, new SingleNameReference(component.name, 0), 0));
}
}
constructor.statements = statements.toArray(new Statement[0]);
//adding the constructor in the methods list: rank is not critical since bindings will be sorted
if (needToInsert) {
if (this.methods == null) {
this.methods = new AbstractMethodDeclaration[] { constructor };
} else {
AbstractMethodDeclaration[] newMethods;
System.arraycopy(
this.methods,
0,
newMethods = new AbstractMethodDeclaration[this.methods.length + 1],
1,
this.methods.length);
newMethods[0] = constructor;
this.methods = newMethods;
}
}
return constructor;
}
private Argument[] getArgumentsFromComponents(RecordComponent[] comps) {
Argument[] args2 = comps == null || comps.length == 0 ? ASTNode.NO_ARGUMENTS :
new Argument[comps.length];
int count = 0;
for (RecordComponent comp : comps) {
Argument argument = new Argument(comp.name, ((long)comp.sourceStart) << 32 | comp.sourceEnd,
comp.type, 0); // no modifiers allowed for record components - enforce
args2[count++] = argument;
}
return args2;
}
public ConstructorDeclaration createDefaultConstructor( boolean needExplicitConstructorCall, boolean needToInsert) {
if (this.isRecord())
return createDefaultConstructorForRecord(needExplicitConstructorCall, needToInsert);
//Add to method'set, the default constuctor that just recall the
//super constructor with no arguments
//The arguments' type will be positionned by the TC so just use
//the default int instead of just null (consistency purpose)
//the constructor
ConstructorDeclaration constructor = new ConstructorDeclaration(this.compilationResult);
constructor.bits |= ASTNode.IsDefaultConstructor;
constructor.selector = this.name;
constructor.modifiers = this.modifiers & ExtraCompilerModifiers.AccVisibilityMASK;
//if you change this setting, please update the
//SourceIndexer2.buildTypeDeclaration(TypeDeclaration,char[]) method
constructor.declarationSourceStart = constructor.sourceStart = this.sourceStart;
constructor.declarationSourceEnd =
constructor.sourceEnd = constructor.bodyEnd = this.sourceEnd;
//the super call inside the constructor
if (needExplicitConstructorCall) {
constructor.constructorCall = SuperReference.implicitSuperConstructorCall();
constructor.constructorCall.sourceStart = this.sourceStart;
constructor.constructorCall.sourceEnd = this.sourceEnd;
}
//adding the constructor in the methods list: rank is not critical since bindings will be sorted
if (needToInsert) {
if (this.methods == null) {
this.methods = new AbstractMethodDeclaration[] { constructor };
} else {
AbstractMethodDeclaration[] newMethods;
System.arraycopy(
this.methods,
0,
newMethods = new AbstractMethodDeclaration[this.methods.length + 1],
1,
this.methods.length);
newMethods[0] = constructor;
this.methods = newMethods;
}
}
return constructor;
}
// anonymous type constructor creation: rank is important since bindings already got sorted
public MethodBinding createDefaultConstructorWithBinding(MethodBinding inheritedConstructorBinding, boolean eraseThrownExceptions) {
//Add to method'set, the default constuctor that just recall the
//super constructor with the same arguments
String baseName = "$anonymous"; //$NON-NLS-1$
TypeBinding[] argumentTypes = inheritedConstructorBinding.parameters;
int argumentsLength = argumentTypes.length;
//the constructor
ConstructorDeclaration constructor = new ConstructorDeclaration(this.compilationResult);
constructor.selector = new char[] { 'x' }; //no maining
constructor.sourceStart = this.sourceStart;
constructor.sourceEnd = this.sourceEnd;
int newModifiers = this.modifiers & ExtraCompilerModifiers.AccVisibilityMASK;
if (inheritedConstructorBinding.isVarargs()) {
newModifiers |= ClassFileConstants.AccVarargs;
}
constructor.modifiers = newModifiers;
constructor.bits |= ASTNode.IsDefaultConstructor;
if (argumentsLength > 0) {
Argument[] arguments = (constructor.arguments = new Argument[argumentsLength]);
for (int i = argumentsLength; --i >= 0;) {
arguments[i] = new Argument((baseName + i).toCharArray(), 0L, null /*type ref*/, ClassFileConstants.AccDefault);
}
}
//the super call inside the constructor
constructor.constructorCall = SuperReference.implicitSuperConstructorCall();
constructor.constructorCall.sourceStart = this.sourceStart;
constructor.constructorCall.sourceEnd = this.sourceEnd;
if (argumentsLength > 0) {
Expression[] args1;
args1 = constructor.constructorCall.arguments = new Expression[argumentsLength];
for (int i = argumentsLength; --i >= 0;) {
args1[i] = new SingleNameReference((baseName + i).toCharArray(), 0L);
}
}
//adding the constructor in the methods list
if (this.methods == null) {
this.methods = new AbstractMethodDeclaration[] { constructor };
} else {
AbstractMethodDeclaration[] newMethods;
System.arraycopy(this.methods, 0, newMethods = new AbstractMethodDeclaration[this.methods.length + 1], 1, this.methods.length);
newMethods[0] = constructor;
this.methods = newMethods;
}
//============BINDING UPDATE==========================
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=277643, align with javac on JLS 15.12.2.6
ReferenceBinding[] thrownExceptions = eraseThrownExceptions
? this.scope.environment().convertToRawTypes(inheritedConstructorBinding.thrownExceptions, true, true)
: inheritedConstructorBinding.thrownExceptions;
SourceTypeBinding sourceType = this.binding;
constructor.binding = new MethodBinding(
constructor.modifiers, //methodDeclaration
argumentsLength == 0 ? Binding.NO_PARAMETERS : argumentTypes, //arguments bindings
thrownExceptions, //exceptions
sourceType); //declaringClass
constructor.binding.tagBits |= (inheritedConstructorBinding.tagBits & TagBits.HasMissingType);
constructor.binding.modifiers |= ExtraCompilerModifiers.AccIsDefaultConstructor;
if (inheritedConstructorBinding.parameterFlowBits != null // this implies that annotation based null/resource analysis is enabled
&& argumentsLength > 0)
{
// copy flowbits from inherited constructor to the new constructor:
int len = inheritedConstructorBinding.parameterFlowBits.length;
System.arraycopy(inheritedConstructorBinding.parameterFlowBits, 0,
constructor.binding.parameterFlowBits = new byte[len], 0, len);
}
// TODO(stephan): do argument types already carry sufficient info about type annotations?
constructor.scope = new MethodScope(this.scope, constructor, true);
constructor.bindArguments();
constructor.constructorCall.resolve(constructor.scope);
MethodBinding[] methodBindings = sourceType.methods(); // trigger sorting
int length;
System.arraycopy(methodBindings, 0, methodBindings = new MethodBinding[(length = methodBindings.length) + 1], 1, length);
methodBindings[0] = constructor.binding;
if (++length > 1)
ReferenceBinding.sortMethods(methodBindings, 0, length); // need to resort, since could be valid methods ahead (140643) - DOM needs eager sorting
sourceType.setMethods(methodBindings);
//===================================================
return constructor.binding;
}
/**
* Find the matching parse node, answers null if nothing found
*/
public FieldDeclaration declarationOf(FieldBinding fieldBinding) {
if (fieldBinding != null && this.fields != null) {
for (FieldDeclaration field : this.fields) {
FieldDeclaration fieldDecl;
if ((fieldDecl = field).binding == fieldBinding)
return fieldDecl;
}
}
return null;
}
/**
* Find the matching parse node, answers null if nothing found
*/
public TypeDeclaration declarationOf(MemberTypeBinding memberTypeBinding) {
if (memberTypeBinding != null && this.memberTypes != null) {
for (TypeDeclaration memberType : this.memberTypes) {
TypeDeclaration memberTypeDecl;
if (TypeBinding.equalsEquals((memberTypeDecl = memberType).binding, memberTypeBinding))
return memberTypeDecl;
}
}
return null;
}
/**
* Find the matching parse node, answers null if nothing found
*/
public AbstractMethodDeclaration declarationOf(MethodBinding methodBinding) {
if (methodBinding != null && this.methods != null) {
for (AbstractMethodDeclaration method : this.methods) {
AbstractMethodDeclaration methodDecl;
if ((methodDecl = method).binding == methodBinding)
return methodDecl;
}
}
return null;
}
/**
* Find the matching parse node, answers null if nothing found
*/
public RecordComponent declarationOf(RecordComponentBinding recordComponentBinding) {
if (recordComponentBinding != null && this.recordComponents != null) {
for (RecordComponent recordComponent : this.recordComponents) {
if (recordComponent.binding == recordComponentBinding)
return recordComponent;
}
}
return null;
}
/**
* Finds the matching type amoung this type's member types.
* Returns null if no type with this name is found.
* The type name is a compound name relative to this type
* e.g. if this type is X and we're looking for Y.X.A.B
* then a type name would be {X, A, B}
*/
public TypeDeclaration declarationOfType(char[][] typeName) {
int typeNameLength = typeName.length;
if (typeNameLength < 1 || !CharOperation.equals(typeName[0], this.name)) {
return null;
}
if (typeNameLength == 1) {
return this;
}
char[][] subTypeName = new char[typeNameLength - 1][];
System.arraycopy(typeName, 1, subTypeName, 0, typeNameLength - 1);
for (TypeDeclaration memberType : this.memberTypes) {
TypeDeclaration typeDecl = memberType.declarationOfType(subTypeName);
if (typeDecl != null) {
return typeDecl;
}
}
return null;
}
@Override
public CompilationUnitDeclaration getCompilationUnitDeclaration() {
if (this.scope != null) {
return this.scope.compilationUnitScope().referenceContext;
}
return null;
}
/**
* This is applicable only for records - ideally get the canonical constructor, if not
* get a constructor and at the client side tentatively marked as canonical constructor
* which gets checked at the binding time. If there are no constructors, then null is returned.
**/
public ConstructorDeclaration getConstructor(Parser parser) {
ConstructorDeclaration cd = null;
if (this.methods != null) {
for (int i = this.methods.length; --i >= 0;) {
AbstractMethodDeclaration am;
if ((am = this.methods[i]).isConstructor()) {
if (!CharOperation.equals(am.selector, this.name)) {
// the constructor was in fact a method with no return type
// unless an explicit constructor call was supplied
ConstructorDeclaration c = (ConstructorDeclaration) am;
if (c.constructorCall == null || c.constructorCall.isImplicitSuper()) { //changed to a method
MethodDeclaration m = parser.convertToMethodDeclaration(c, this.compilationResult);
this.methods[i] = m;
}
} else {
if (am instanceof CompactConstructorDeclaration) {
CompactConstructorDeclaration ccd = (CompactConstructorDeclaration) am;
ccd.recordDeclaration = this;
if (ccd.arguments == null)
ccd.arguments = getArgumentsFromComponents(this.recordComponents);
return ccd;
}
// now we are looking at a "normal" constructor
if ((this.recordComponents == null || this.recordComponents.length == 0)
&& am.arguments == null)
return (ConstructorDeclaration) am;
cd = (ConstructorDeclaration) am; // just return the last constructor
}
}
}
}
// /* At this point we can only say that there is high possibility that there is a constructor
// * If it is a CCD, then definitely it is there (except for empty one); else we need to check
// * the bindings to say that there is a canonical constructor. To take care at binding resolution time.
// */
return cd; // the last constructor
}
/**
* Generic bytecode generation for type
*/
public void generateCode(ClassFile enclosingClassFile) {
if ((this.bits & ASTNode.HasBeenGenerated) != 0)
return;
this.bits |= ASTNode.HasBeenGenerated;
if (this.ignoreFurtherInvestigation) {
if (this.binding == null)
return;
ClassFile.createProblemType(
this,
this.scope.referenceCompilationUnit().compilationResult);
return;
}
try {
// create the result for a compiled type
ClassFile classFile = ClassFile.getNewInstance(this.binding);
classFile.initialize(this.binding, enclosingClassFile, false);
if (this.binding.isMemberType()) {
classFile.recordInnerClasses(this.binding);
} else if (this.binding.isLocalType()) {
enclosingClassFile.recordInnerClasses(this.binding);
classFile.recordInnerClasses(this.binding);
}
SourceTypeBinding nestHost = this.binding.getNestHost();
if (nestHost != null && !TypeBinding.equalsEquals(nestHost, this.binding)) {
ClassFile ocf = enclosingClassFile.outerMostEnclosingClassFile();
if (ocf != null)
ocf.recordNestMember(this.binding);
}
TypeVariableBinding[] typeVariables = this.binding.typeVariables();
for (TypeVariableBinding typeVariableBinding : typeVariables) {
if ((typeVariableBinding.tagBits & TagBits.ContainsNestedTypeReferences) != 0) {
Util.recordNestedType(classFile, typeVariableBinding);
}
}
// generate all fiels
classFile.addFieldInfos();
if (this.memberTypes != null) {
for (TypeDeclaration memberType : this.memberTypes) {
classFile.recordInnerClasses(memberType.binding);
memberType.generateCode(this.scope, classFile);
}
}
// generate all methods
classFile.setForMethodInfos();
if (this.methods != null) {
for (AbstractMethodDeclaration method : this.methods) {
method.generateCode(this.scope, classFile);
}
}
// generate all synthetic and abstract methods
classFile.addSpecialMethods(this);
if (this.ignoreFurtherInvestigation) { // trigger problem type generation for code gen errors
throw new AbortType(this.scope.referenceCompilationUnit().compilationResult, null);
}
// finalize the compiled type result
classFile.addAttributes();
this.scope.referenceCompilationUnit().compilationResult.record(
this.binding.constantPoolName(),
classFile);
} catch (AbortType e) {
if (this.binding == null)
return;
ClassFile.createProblemType(
this,
this.scope.referenceCompilationUnit().compilationResult);
}
}
/**
* Bytecode generation for a local inner type (API as a normal statement code gen)
*/
@Override
public void generateCode(BlockScope blockScope, CodeStream codeStream) {
if ((this.bits & ASTNode.IsReachable) == 0) {
return;
}
if ((this.bits & ASTNode.HasBeenGenerated) != 0) return;
int pc = codeStream.position;
if (this.binding != null) {
SyntheticArgumentBinding[] enclosingInstances = ((NestedTypeBinding) this.binding).syntheticEnclosingInstances();
for (int i = 0, slotSize = 0, count = enclosingInstances == null ? 0 : enclosingInstances.length; i < count; i++){
SyntheticArgumentBinding enclosingInstance = enclosingInstances[i];
enclosingInstance.resolvedPosition = ++slotSize; // shift by 1 to leave room for aload0==this
if (slotSize > 0xFF) { // no more than 255 words of arguments
blockScope.problemReporter().noMoreAvailableSpaceForArgument(enclosingInstance, blockScope.referenceType());
}
}
}
generateCode(codeStream.classFile);
codeStream.recordPositionsFrom(pc, this.sourceStart);
}
/**
* Bytecode generation for a member inner type
*/
public void generateCode(ClassScope classScope, ClassFile enclosingClassFile) {
if ((this.bits & ASTNode.HasBeenGenerated) != 0) return;
if (this.binding != null) {
SyntheticArgumentBinding[] enclosingInstances = ((NestedTypeBinding) this.binding).syntheticEnclosingInstances();
for (int i = 0, slotSize = 0, count = enclosingInstances == null ? 0 : enclosingInstances.length; i < count; i++){
SyntheticArgumentBinding enclosingInstance = enclosingInstances[i];
enclosingInstance.resolvedPosition = ++slotSize; // shift by 1 to leave room for aload0==this
if (slotSize > 0xFF) { // no more than 255 words of arguments
classScope.problemReporter().noMoreAvailableSpaceForArgument(enclosingInstance, classScope.referenceType());
}
}
}
generateCode(enclosingClassFile);
}
/**
* Bytecode generation for a package member
*/
public void generateCode(CompilationUnitScope unitScope) {
generateCode((ClassFile) null);
}
@Override
public boolean hasErrors() {
return this.ignoreFurtherInvestigation;
}
/**
* Common flow analysis for all types
*/
private void internalAnalyseCode(FlowContext flowContext, FlowInfo flowInfo) {
if (CharOperation.equals(this.name, TypeConstants.YIELD)) {
this.scope.problemReporter().validateRestrictedKeywords(this.name, this);
}
if (!this.binding.isUsed() && this.binding.isOrEnclosedByPrivateType()) {
if (!this.scope.referenceCompilationUnit().compilationResult.hasSyntaxError) {
this.scope.problemReporter().unusedPrivateType(this);
}
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=385780
if (this.typeParameters != null &&
!this.scope.referenceCompilationUnit().compilationResult.hasSyntaxError) {
for (TypeParameter typeParameter : this.typeParameters) {
if ((typeParameter.binding.modifiers & ExtraCompilerModifiers.AccLocallyUsed) == 0) {
this.scope.problemReporter().unusedTypeParameter(typeParameter);
}
}
}
boolean useOwningAnnotations = this.scope.compilerOptions().isAnnotationBasedResourceAnalysisEnabled;
boolean isCloseable = this.binding.hasTypeBit(TypeIds.BitAutoCloseable|TypeIds.BitCloseable);
FieldDeclaration fieldNeedingClose = null;
// for local classes we use the flowContext as our parent, but never use an initialization context for this purpose
// see Bug 360328 - [compiler][null] detect null problems in nested code (local class inside a loop)
FlowContext parentContext = (flowContext instanceof InitializationFlowContext) ? null : flowContext;
InitializationFlowContext initializerContext = new InitializationFlowContext(parentContext, this, flowInfo, flowContext, this.initializerScope);
// no static initializer in local classes, thus no need to set parent:
InitializationFlowContext staticInitializerContext = new InitializationFlowContext(null, this, flowInfo, flowContext, this.staticInitializerScope);
FlowInfo nonStaticFieldInfo = flowInfo.unconditionalFieldLessCopy();
FlowInfo staticFieldInfo = flowInfo.unconditionalFieldLessCopy();
if (this.fields != null) {
for (FieldDeclaration field : this.fields) {
if (field.isStatic()) {
if ((staticFieldInfo.tagBits & FlowInfo.UNREACHABLE_OR_DEAD) != 0)
field.bits &= ~ASTNode.IsReachable;
/*if (field.isField()){
staticInitializerContext.handledExceptions = NoExceptions; // no exception is allowed jls8.3.2
} else {*/
staticInitializerContext.handledExceptions = Binding.ANY_EXCEPTION; // tolerate them all, and record them
/*}*/
staticFieldInfo = field.analyseCode(this.staticInitializerScope, staticInitializerContext, staticFieldInfo);
// in case the initializer is not reachable, use a reinitialized flowInfo and enter a fake reachable
// branch, since the previous initializer already got the blame.
if (staticFieldInfo == FlowInfo.DEAD_END) {
this.staticInitializerScope.problemReporter().initializerMustCompleteNormally(field);
staticFieldInfo = FlowInfo.initial(this.maxFieldCount).setReachMode(FlowInfo.UNREACHABLE_OR_DEAD);
}
} else {
if ((nonStaticFieldInfo.tagBits & FlowInfo.UNREACHABLE_OR_DEAD) != 0)
field.bits &= ~ASTNode.IsReachable;
/*if (field.isField()){
initializerContext.handledExceptions = NoExceptions; // no exception is allowed jls8.3.2
} else {*/
initializerContext.handledExceptions = Binding.ANY_EXCEPTION; // tolerate them all, and record them
/*}*/
nonStaticFieldInfo = field.analyseCode(this.initializerScope, initializerContext, nonStaticFieldInfo);
// in case the initializer is not reachable, use a reinitialized flowInfo and enter a fake reachable
// branch, since the previous initializer already got the blame.
if (nonStaticFieldInfo == FlowInfo.DEAD_END) {
this.initializerScope.problemReporter().initializerMustCompleteNormally(field);
nonStaticFieldInfo = FlowInfo.initial(this.maxFieldCount).setReachMode(FlowInfo.UNREACHABLE_OR_DEAD);
}
if (fieldNeedingClose == null && useOwningAnnotations && isCloseable && (field.binding.tagBits & TagBits.AnnotationOwning) != 0) {
fieldNeedingClose = field;
}
}
}
}
if (this.memberTypes != null) {
for (TypeDeclaration memberType : this.memberTypes) {
if (flowContext != null){ // local type
memberType.analyseCode(this.scope, flowContext, nonStaticFieldInfo.copy().setReachMode(flowInfo.reachMode())); // reset reach mode in case initializers did abrupt completely
} else {
memberType.analyseCode(this.scope);
}
}
}
if (this.scope.compilerOptions().complianceLevel >= ClassFileConstants.JDK9) {
// synthesize <clinit> if one is not present. Required to initialize
// synthetic final fields as modifying final fields outside of a <clinit>
// is disallowed in Java 9
if (this.methods == null || !this.methods[0].isClinit()) {
Clinit clinit = new Clinit(this.compilationResult);
clinit.declarationSourceStart = clinit.sourceStart = this.sourceStart;
clinit.declarationSourceEnd = clinit.sourceEnd = this.sourceEnd;
clinit.bodyEnd = this.sourceEnd;
int length = this.methods == null ? 0 : this.methods.length;
AbstractMethodDeclaration[] methodDeclarations = new AbstractMethodDeclaration[length + 1];
methodDeclarations[0] = clinit;
if (this.methods != null)
System.arraycopy(this.methods, 0, methodDeclarations, 1, length);
}
}
if (this.methods != null) {
UnconditionalFlowInfo outerInfo = flowInfo.unconditionalFieldLessCopy();
FlowInfo constructorInfo = nonStaticFieldInfo.unconditionalInits().discardNonFieldInitializations().addInitializationsFrom(outerInfo);
SimpleSetOfCharArray jUnitMethodSourceValues = getJUnitMethodSourceValues();
for (AbstractMethodDeclaration method : this.methods) {
if (method.ignoreFurtherInvestigation)
continue;
if (method.isInitializationMethod()) {
// pass down the appropriate initializerContext:
if (method.isStatic()) { // <clinit>
((Clinit)method).analyseCode(
this.scope,
staticInitializerContext,
staticFieldInfo.unconditionalInits().discardNonFieldInitializations().addInitializationsFrom(outerInfo));
} else { // constructor
((ConstructorDeclaration)method).analyseCode(this.scope, initializerContext, constructorInfo.copy(), flowInfo.reachMode());
}
} else { // regular method
// JUnit 5 only accepts methods without arguments for method sources
if (method.arguments == null && jUnitMethodSourceValues.includes(method.selector) && method.binding != null) {
method.binding.modifiers |= ExtraCompilerModifiers.AccLocallyUsed;
}
// pass down the parentContext (NOT an initializer context, see above):
((MethodDeclaration)method).analyseCode(this.scope, parentContext, flowInfo.copy());
if (fieldNeedingClose != null && CharOperation.equals(TypeConstants.CLOSE, method.selector) && method.arguments == null) {
fieldNeedingClose = null;
}
}
}
}
if (fieldNeedingClose != null) {
this.scope.problemReporter().missingImplementationOfClose(fieldNeedingClose);
}
// enable enum support ?
if (this.binding.isEnum() && !this.binding.isAnonymousType()) {
this.enumValuesSyntheticfield = this.binding.addSyntheticFieldForEnumValues();
}
}
private SimpleSetOfCharArray getJUnitMethodSourceValues() {
SimpleSetOfCharArray junitMethodSourceValues = new SimpleSetOfCharArray();
for (AbstractMethodDeclaration methodDeclaration : this.methods) {
if (methodDeclaration.annotations != null) {
for (Annotation annotation : methodDeclaration.annotations) {
if (annotation.resolvedType != null && annotation.resolvedType.id == TypeIds.T_OrgJunitJupiterParamsProviderMethodSource) {
addJUnitMethodSourceValues(junitMethodSourceValues, annotation, methodDeclaration.selector);
}
}
}
}
return junitMethodSourceValues;
}
private void addJUnitMethodSourceValues(SimpleSetOfCharArray junitMethodSourceValues, Annotation annotation, char[] methodName) {
for (MemberValuePair memberValuePair : annotation.memberValuePairs()) {
if (CharOperation.equals(memberValuePair.name, TypeConstants.VALUE)) {
Expression value = memberValuePair.value;
if (value instanceof ArrayInitializer) { // e.g. @MethodSource({ "someMethod" })
ArrayInitializer arrayInitializer = (ArrayInitializer) value;
for (Expression arrayValue : arrayInitializer.expressions) {
junitMethodSourceValues.add(getValueAsChars(arrayValue));
}
} else {