package org.eclipse.jdt.internal.compiler.lookup;
import java.util.List;
import java.util.Set;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.ClassFile;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
import org.eclipse.jdt.internal.compiler.impl.Constant;
public final class ArrayBinding extends TypeBinding {
public static final FieldBinding ArrayLength = new FieldBinding(TypeConstants.LENGTH, TypeBinding.INT, ClassFileConstants.AccPublic | ClassFileConstants.AccFinal, null, Constant.NotAConstant);
public TypeBinding leafComponentType;
public int dimensions;
LookupEnvironment environment;
char[] constantPoolName;
char[] genericTypeSignature;
public long[] nullTagBitsPerDimension;
private MethodBinding clone;
public ArrayBinding(TypeBinding type, int dimensions, LookupEnvironment environment) {
this.tagBits |= TagBits.IsArrayType;
this.leafComponentType = type;
this.dimensions = dimensions;
this.environment = environment;
if (type instanceof UnresolvedReferenceBinding)
((UnresolvedReferenceBinding) type).addWrapper(this, environment);
else
this.tagBits |= type.tagBits & (TagBits.HasTypeVariable | TagBits.HasDirectWildcard | TagBits.HasMissingType | TagBits.ContainsNestedTypeReferences | TagBits.HasCapturedWildcard);
long mask = type.tagBits & TagBits.AnnotationNullMASK;
if (mask != 0) {
this.nullTagBitsPerDimension = new long[this.dimensions + 1];
this.nullTagBitsPerDimension[this.dimensions] = mask;
this.tagBits |= TagBits.HasNullTypeAnnotation;
}
}
@Override
public TypeBinding closestMatch() {
if (isValidBinding()) {
return this;
}
TypeBinding leafClosestMatch = this.leafComponentType.closestMatch();
if (leafClosestMatch == null) {
return null;
}
return this.environment.createArrayType(this.leafComponentType.closestMatch(), this.dimensions);
}
@Override
public List<TypeBinding> collectMissingTypes(List<TypeBinding> missingTypes) {
if ((this.tagBits & TagBits.HasMissingType) != 0) {
missingTypes = this.leafComponentType.collectMissingTypes(missingTypes);
}
return missingTypes;
}
@Override
public void collectSubstitutes(Scope scope, TypeBinding actualType, InferenceContext inferenceContext, int constraint) {
if ((this.tagBits & TagBits.HasTypeVariable) == 0) return;
if (actualType == TypeBinding.NULL || actualType.kind() == POLY_TYPE) return;
switch(actualType.kind()) {
case Binding.ARRAY_TYPE :
int actualDim = actualType.dimensions();
if (actualDim == this.dimensions) {
this.leafComponentType.collectSubstitutes(scope, actualType.leafComponentType(), inferenceContext, constraint);
} else if (actualDim > this.dimensions) {
ArrayBinding actualReducedType = this.environment.createArrayType(actualType.leafComponentType(), actualDim - this.dimensions);
this.leafComponentType.collectSubstitutes(scope, actualReducedType, inferenceContext, constraint);
}
break;
case Binding.TYPE_PARAMETER :
break;
}
}
@Override
public boolean mentionsAny(TypeBinding[] parameters, int idx) {
return this.leafComponentType.mentionsAny(parameters, idx);
}
@Override
void collectInferenceVariables(Set<InferenceVariable> variables) {
this.leafComponentType.collectInferenceVariables(variables);
}
@Override
TypeBinding substituteInferenceVariable(InferenceVariable var, TypeBinding substituteType) {
TypeBinding substitutedLeaf = this.leafComponentType.substituteInferenceVariable(var, substituteType);
if (TypeBinding.notEquals(substitutedLeaf, this.leafComponentType))
return this.environment.createArrayType(substitutedLeaf, this.dimensions, this.typeAnnotations);
return this;
}
@Override
public char[] computeUniqueKey(boolean isLeaf) {
char[] brackets = new char[this.dimensions];
for (int i = this.dimensions - 1; i >= 0; i--) brackets[i] = '[';
return CharOperation.concat(brackets, this.leafComponentType.computeUniqueKey(isLeaf));
}
@Override
public char[] constantPoolName() {
if (this.constantPoolName != null)
return this.constantPoolName;
char[] brackets = new char[this.dimensions];
for (int i = this.dimensions - 1; i >= 0; i--) brackets[i] = '[';
return this.constantPoolName = CharOperation.concat(brackets, this.leafComponentType.signature());
}
@Override
public String debugName() {
if (this.hasTypeAnnotations())
return annotatedDebugName();
StringBuffer brackets = new StringBuffer(this.dimensions * 2);
for (int i = this.dimensions; --i >= 0;)
brackets.append("[]");
return this.leafComponentType.debugName() + brackets.toString();
}
@Override
public String annotatedDebugName() {
StringBuffer brackets = new StringBuffer(this.dimensions * 2);
brackets.append(this.leafComponentType.annotatedDebugName());
brackets.append(' ');
AnnotationBinding [] annotations = getTypeAnnotations();
for (int i = 0, j = -1; i < this.dimensions; i++) {
if (annotations != null) {
if (i != 0)
brackets.append(' ');
while (++j < annotations.length && annotations[j] != null) {
brackets.append(annotations[j]);
brackets.append(' ');
}
}
brackets.append("[]");
}
return brackets.toString();
}
@Override
public int dimensions() {
return this.dimensions;
}
public TypeBinding elementsType() {
if (this.dimensions == 1)
return this.leafComponentType;
AnnotationBinding [] oldies = getTypeAnnotations();
AnnotationBinding [] newbies = Binding.NO_ANNOTATIONS;
for (int i = 0, length = oldies == null ? 0 : oldies.length; i < length; i++) {
if (oldies[i] == null) {
System.arraycopy(oldies, i+1, newbies = new AnnotationBinding[length - i - 1], 0, length - i - 1);
break;
}
}
return this.environment.createArrayType(this.leafComponentType, this.dimensions - 1, newbies);
}
@Override
public TypeBinding erasure() {
TypeBinding erasedType = this.leafComponentType.erasure();
if (TypeBinding.notEquals(this.leafComponentType, erasedType))
return this.environment.createArrayType(erasedType, this.dimensions);
return this;
}
@Override
public ArrayBinding upwardsProjection(Scope scope, TypeBinding[] mentionedTypeVariables) {
TypeBinding leafType = this.leafComponentType.upwardsProjection(scope, mentionedTypeVariables);
return scope.environment().createArrayType(leafType, this.dimensions, this.typeAnnotations);
}
@Override
public ArrayBinding downwardsProjection(Scope scope, TypeBinding[] mentionedTypeVariables) {
TypeBinding leafType = this.leafComponentType.downwardsProjection(scope, mentionedTypeVariables);
return scope.environment().createArrayType(leafType, this.dimensions, this.typeAnnotations);
}
public LookupEnvironment environment() {
return this.environment;
}
@Override
public char[] genericTypeSignature() {
if (this.genericTypeSignature == null) {
char[] brackets = new char[this.dimensions];
for (int i = this.dimensions - 1; i >= 0; i--) brackets[i] = '[';
this.genericTypeSignature = CharOperation.concat(brackets, this.leafComponentType.genericTypeSignature());
}
return this.genericTypeSignature;
}
@Override
public PackageBinding getPackage() {
return this.leafComponentType.getPackage();
}
@Override
public int hashCode() {
return this.leafComponentType == null ? super.hashCode() : this.leafComponentType.hashCode();
}
@Override
public boolean isCompatibleWith(TypeBinding otherType, Scope captureScope) {
if (equalsEquals(this, otherType))
return true;
switch (otherType.kind()) {
case Binding.ARRAY_TYPE :
ArrayBinding otherArray = (ArrayBinding) otherType;
if (otherArray.leafComponentType.isBaseType())
return false;
if (this.dimensions == otherArray.dimensions)
return this.leafComponentType.isCompatibleWith(otherArray.leafComponentType);
if (this.dimensions < otherArray.dimensions)
return false;
break;
case Binding.BASE_TYPE :
return false;
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE :
return ((WildcardBinding) otherType).boundCheck(this);
case Binding.INTERSECTION_TYPE18:
for (ReferenceBinding intersecting : ((IntersectionTypeBinding18) otherType).intersectingTypes) {
if (!isCompatibleWith(intersecting, captureScope))
return false;
}
return true;
case Binding.TYPE_PARAMETER :
if (otherType.isCapture()) {
CaptureBinding otherCapture = (CaptureBinding) otherType;
TypeBinding otherLowerBound;
if ((otherLowerBound = otherCapture.lowerBound) != null) {
if (!otherLowerBound.isArrayType()) return false;
return isCompatibleWith(otherLowerBound, captureScope);
}
}
return false;
}
switch (otherType.leafComponentType().id) {
case TypeIds.T_JavaLangObject :
case TypeIds.T_JavaLangCloneable :
case TypeIds.T_JavaIoSerializable :
return true;
}
return false;
}
@Override
public boolean isSubtypeOf(TypeBinding otherType, boolean simulatingBugJDK8026527) {
if (equalsEquals(this, otherType))
return true;
switch (otherType.kind()) {
case Binding.ARRAY_TYPE :
ArrayBinding otherArray = (ArrayBinding) otherType;
if (otherArray.leafComponentType.isBaseType())
return false;
if (this.dimensions == otherArray.dimensions)
return this.leafComponentType.isSubtypeOf(otherArray.leafComponentType, simulatingBugJDK8026527);
if (this.dimensions < otherArray.dimensions)
return false;
break;
case Binding.BASE_TYPE :
return false;
case Binding.INTERSECTION_TYPE18:
for (ReferenceBinding intersecting : ((IntersectionTypeBinding18) otherType).intersectingTypes) {
if (!isSubtypeOf(intersecting, simulatingBugJDK8026527))
return false;
}
return true;
case Binding.TYPE_PARAMETER:
if (otherType.isCapture()) {
CaptureBinding otherCapture = (CaptureBinding) otherType;
TypeBinding otherLowerBound;
if ((otherLowerBound = otherCapture.lowerBound) != null) {
if (!otherLowerBound.isArrayType()) return false;
return isSubtypeOf(otherLowerBound, simulatingBugJDK8026527);
}
}
}
switch (otherType.leafComponentType().id) {
case TypeIds.T_JavaLangObject :
case TypeIds.T_JavaLangCloneable :
case TypeIds.T_JavaIoSerializable :
return true;
}
return false;
}
@Override
public boolean isProperType(boolean admitCapture18) {
return this.leafComponentType.isProperType(admitCapture18);
}
@Override
public int kind() {
return ARRAY_TYPE;
}
@Override
public TypeBinding leafComponentType(){
return this.leafComponentType;
}
@Override
public char[] nullAnnotatedReadableName(CompilerOptions options, boolean shortNames) {
if (this.nullTagBitsPerDimension == null)
return shortNames ? shortReadableName() : readableName();
char[][] brackets = new char[this.dimensions][];
for (int i = 0; i < this.dimensions; i++) {
if ((this.nullTagBitsPerDimension[i] & TagBits.AnnotationNullMASK) != 0) {
char[][] fqAnnotationName;
if ((this.nullTagBitsPerDimension[i] & TagBits.AnnotationNonNull) != 0)
fqAnnotationName = options.nonNullAnnotationName;
else
fqAnnotationName = options.nullableAnnotationName;
char[] annotationName = shortNames
? fqAnnotationName[fqAnnotationName.length-1]
: CharOperation.concatWith(fqAnnotationName, '.');
brackets[i] = new char[annotationName.length+3];
brackets[i][0] = '@';
System.arraycopy(annotationName, 0, brackets[i], 1, annotationName.length);
brackets[i][annotationName.length+1] = '[';
brackets[i][annotationName.length+2] = ']';
} else {
brackets[i] = new char[]{'[', ']'};
}
}
return CharOperation.concat(this.leafComponentType.nullAnnotatedReadableName(options, shortNames),
CharOperation.concatWith(brackets, ' '),
' ');
}
@Override
public int problemId() {
return this.leafComponentType.problemId();
}
@Override
public char[] qualifiedSourceName() {
char[] brackets = new char[this.dimensions * 2];
for (int i = this.dimensions * 2 - 1; i >= 0; i -= 2) {
brackets[i] = ']';
brackets[i - 1] = '[';
}
return CharOperation.concat(this.leafComponentType.qualifiedSourceName(), brackets);
}
@Override
public char[] readableName() {
char[] brackets = new char[this.dimensions * 2];
for (int i = this.dimensions * 2 - 1; i >= 0; i -= 2) {
brackets[i] = ']';
brackets[i - 1] = '[';
}
return CharOperation.concat(this.leafComponentType.readableName(), brackets);
}
@Override
public void setTypeAnnotations(AnnotationBinding[] annotations, boolean evalNullAnnotations) {
this.tagBits |= TagBits.HasTypeAnnotations;
if (annotations == null || annotations.length == 0)
return;
this.typeAnnotations = annotations;
if (evalNullAnnotations) {
long nullTagBits = 0;
if (this.nullTagBitsPerDimension == null)
this.nullTagBitsPerDimension = new long[this.dimensions + 1];
int dimension = 0;
for (int i = 0, length = annotations.length; i < length; i++) {
AnnotationBinding annotation = annotations[i];
if (annotation != null) {
if (annotation.type.hasNullBit(TypeIds.BitNullableAnnotation)) {
nullTagBits |= TagBits.AnnotationNullable;
this.tagBits |= TagBits.HasNullTypeAnnotation;
} else if (annotation.type.hasNullBit(TypeIds.BitNonNullAnnotation)) {
nullTagBits |= TagBits.AnnotationNonNull;
this.tagBits |= TagBits.HasNullTypeAnnotation;
}
} else {
if (nullTagBits != 0) {
this.nullTagBitsPerDimension[dimension] = nullTagBits;
nullTagBits = 0;
}
dimension++;
}
}
this.tagBits |= this.nullTagBitsPerDimension[0];
}
}
@Override
public char[] shortReadableName(){
char[] brackets = new char[this.dimensions * 2];
for (int i = this.dimensions * 2 - 1; i >= 0; i -= 2) {
brackets[i] = ']';
brackets[i - 1] = '[';
}
return CharOperation.concat(this.leafComponentType.shortReadableName(), brackets);
}
@Override
public char[] sourceName() {
char[] brackets = new char[this.dimensions * 2];
for (int i = this.dimensions * 2 - 1; i >= 0; i -= 2) {
brackets[i] = ']';
brackets[i - 1] = '[';
}
return CharOperation.concat(this.leafComponentType.sourceName(), brackets);
}
@Override
public void swapUnresolved(UnresolvedReferenceBinding unresolvedType, ReferenceBinding resolvedType, LookupEnvironment env) {
if (this.leafComponentType == unresolvedType) {
this.leafComponentType = env.convertUnresolvedBinaryToRawType(resolvedType);
if (this.leafComponentType != resolvedType)
this.id = env.createArrayType(this.leafComponentType, this.dimensions, this.typeAnnotations).id;
this.tagBits |= this.leafComponentType.tagBits & (TagBits.HasTypeVariable | TagBits.HasDirectWildcard | TagBits.HasMissingType | TagBits.HasCapturedWildcard);
}
}
@Override
public String toString() {
return this.leafComponentType != null ? debugName() : "NULL TYPE ARRAY";
}
@Override
public TypeBinding unannotated() {
return this.hasTypeAnnotations() ? this.environment.getUnannotatedType(this) : this;
}
@Override
public TypeBinding withoutToplevelNullAnnotation() {
if (!hasNullTypeAnnotations())
return this;
AnnotationBinding[] newAnnotations = this.environment.filterNullTypeAnnotations(this.typeAnnotations);
return this.environment.createArrayType(this.leafComponentType, this.dimensions, newAnnotations);
}
@Override
public TypeBinding uncapture(Scope scope) {
if ((this.tagBits & TagBits.HasCapturedWildcard) == 0)
return this;
TypeBinding leafType = this.leafComponentType.uncapture(scope);
return scope.environment().createArrayType(leafType, this.dimensions, this.typeAnnotations);
}
@Override
public boolean acceptsNonNullDefault() {
return true;
}
@Override
public long updateTagBits() {
if (this.leafComponentType != null)
this.tagBits |= this.leafComponentType.updateTagBits();
return super.updateTagBits();
}
public MethodBinding getCloneMethod(final MethodBinding originalMethod) {
if (this.clone != null)
return this.clone;
MethodBinding method = new MethodBinding() {
@Override
public char[] signature(ClassFile classFile) {
return originalMethod.signature();
}
};
method.modifiers = originalMethod.modifiers;
method.selector = originalMethod.selector;
method.declaringClass = originalMethod.declaringClass;
method.typeVariables = Binding.NO_TYPE_VARIABLES;
method.parameters = originalMethod.parameters;
method.thrownExceptions = Binding.NO_EXCEPTIONS;
method.tagBits = originalMethod.tagBits;
method.returnType = this.environment.globalOptions.sourceLevel >= ClassFileConstants.JDK1_5 ? this : originalMethod.returnType;
if (this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled) {
if (this.environment.usesNullTypeAnnotations())
method.returnType = this.environment.createAnnotatedType(method.returnType, new AnnotationBinding[] { this.environment.getNonNullAnnotation() });
else
method.tagBits |= TagBits.AnnotationNonNull;
}
if ((method.returnType.tagBits & TagBits.HasMissingType) != 0) {
method.tagBits |= TagBits.HasMissingType;
}
return this.clone = method;
}
public static boolean isArrayClone(TypeBinding receiverType, MethodBinding binding) {
if (receiverType instanceof ArrayBinding) {
MethodBinding clone = ((ArrayBinding) receiverType).clone;
return clone != null && binding == clone;
}
return false;
}
}
ArrayBinding
environment: LookupEnvironment
clone: MethodBinding
