static boolean areTypesEqual(TypeBinding one, TypeBinding two) {
if (TypeBinding.equalsEquals(one, two)) return true;
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=329584
switch (one.kind()) {
case Binding.TYPE:
switch (two.kind()) {
case Binding.PARAMETERIZED_TYPE:
case Binding.RAW_TYPE:
if (TypeBinding.equalsEquals(one, two.erasure())) return true;
}
break;
case Binding.RAW_TYPE:
case Binding.PARAMETERIZED_TYPE:
switch (two.kind()) {
case Binding.TYPE:
if (TypeBinding.equalsEquals(one.erasure(), two)) return true;
}
}
// need to consider X<?> and X<? extends Object> as the same 'type'
if (one.isParameterizedType() && two.isParameterizedType())
return one.isEquivalentTo(two) && two.isEquivalentTo(one);
// Can skip this since we resolved each method before comparing it, see
// computeSubstituteMethod()
// if (one instanceof UnresolvedReferenceBinding)
// return ((UnresolvedReferenceBinding) one).resolvedType == two;
// if (two instanceof UnresolvedReferenceBinding)
// return ((UnresolvedReferenceBinding) two).resolvedType == one;
return false; // all other type bindings are identical
}
/* Answer true if the type use is considered deprecated.
* An access in the same compilation unit is allowed.
*/
public final boolean isTypeUseDeprecated(TypeBinding type, Scope scope) {
if (type.isArrayType()) {
type = ((ArrayBinding) type).leafComponentType;
}
if (type.isBaseType()) return false;
ReferenceBinding refType = (ReferenceBinding) type;
// ignore references insing Javadoc comments
if ((this.bits & ASTNode.InsideJavadoc) == 0
&& refType.isOrEnclosedByPrivateType()
&& !scope.isDefinedInType(refType)) {
// ignore cases where type is used from inside itself
((ReferenceBinding) refType.erasure()).modifiers |= ExtraCompilerModifiers.AccLocallyUsed;
}
if (refType.hasRestrictedAccess()) {
AccessRestriction restriction = scope.environment().getAccessRestriction(type.erasure());
if (restriction != null) {
scope
.problemReporter()
.forbiddenReference(
type,
this,
restriction.classpathEntryType,
restriction.classpathEntryName,
restriction.getProblemId());
}
}
// force annotations resolution before deciding whether the type may be deprecated
refType.initializeDeprecatedAnnotationTagBits();
if (!refType.isViewedAsDeprecated()) return false;
// inside same unit - no report
if (scope.isDefinedInSameUnit(refType)) return false;
// if context is deprecated, may avoid reporting
if (!scope.compilerOptions().reportDeprecationInsideDeprecatedCode
&& scope.isInsideDeprecatedCode()) return false;
return true;
}
private ReferenceBinding typeToRecord(TypeBinding type) {
if (type == null) return null;
while (type.isArrayType()) type = ((ArrayBinding) type).leafComponentType();
switch (type.kind()) {
case Binding.BASE_TYPE:
case Binding.TYPE_PARAMETER:
case Binding.WILDCARD_TYPE:
case Binding.INTERSECTION_TYPE:
case Binding.INTERSECTION_TYPE18: // constituents would have been recorded.
case Binding.POLY_TYPE: // not a real type, will mutate into one, hopefully soon.
return null;
case Binding.PARAMETERIZED_TYPE:
case Binding.RAW_TYPE:
type = type.erasure();
}
ReferenceBinding refType = (ReferenceBinding) type;
if (refType.isLocalType()) return null;
return refType;
}
public final boolean canBeSeenBy(
TypeBinding receiverType, InvocationSite invocationSite, Scope scope) {
if (isPublic()) return true;
SourceTypeBinding invocationType = scope.enclosingSourceType();
if (invocationType == this.declaringClass && invocationType == receiverType) return true;
if (invocationType == null) // static import call
return !isPrivate() && scope.getCurrentPackage() == this.declaringClass.fPackage;
if (isProtected()) {
// answer true if the invocationType is the declaringClass or they are in the same package
// OR the invocationType is a subclass of the declaringClass
// AND the receiverType is the invocationType or its subclass
// OR the method is a static method accessed directly through a type
// OR previous assertions are true for one of the enclosing type
if (invocationType == this.declaringClass) return true;
if (invocationType.fPackage == this.declaringClass.fPackage) return true;
ReferenceBinding currentType = invocationType;
int depth = 0;
ReferenceBinding receiverErasure = (ReferenceBinding) receiverType.erasure();
ReferenceBinding declaringErasure = (ReferenceBinding) this.declaringClass.erasure();
do {
if (currentType.findSuperTypeOriginatingFrom(declaringErasure) != null) {
if (invocationSite.isSuperAccess()) return true;
// receiverType can be an array binding in one case... see if you can change it
if (receiverType instanceof ArrayBinding) return false;
if (isStatic()) {
if (depth > 0) invocationSite.setDepth(depth);
return true; // see 1FMEPDL - return invocationSite.isTypeAccess();
}
if (currentType == receiverErasure
|| receiverErasure.findSuperTypeOriginatingFrom(currentType) != null) {
if (depth > 0) invocationSite.setDepth(depth);
return true;
}
}
depth++;
currentType = currentType.enclosingType();
} while (currentType != null);
return false;
}
if (isPrivate()) {
// answer true if the receiverType is the declaringClass
// AND the invocationType and the declaringClass have a common enclosingType
receiverCheck:
{
if (receiverType != this.declaringClass) {
// special tolerance for type variable direct bounds
if (receiverType.isTypeVariable()
&& ((TypeVariableBinding) receiverType)
.isErasureBoundTo(this.declaringClass.erasure())) break receiverCheck;
return false;
}
}
if (invocationType != this.declaringClass) {
ReferenceBinding outerInvocationType = invocationType;
ReferenceBinding temp = outerInvocationType.enclosingType();
while (temp != null) {
outerInvocationType = temp;
temp = temp.enclosingType();
}
ReferenceBinding outerDeclaringClass = (ReferenceBinding) this.declaringClass.erasure();
temp = outerDeclaringClass.enclosingType();
while (temp != null) {
outerDeclaringClass = temp;
temp = temp.enclosingType();
}
if (outerInvocationType != outerDeclaringClass) return false;
}
return true;
}
// isDefault()
PackageBinding declaringPackage = this.declaringClass.fPackage;
if (invocationType.fPackage != declaringPackage) return false;
// receiverType can be an array binding in one case... see if you can change it
if (receiverType instanceof ArrayBinding) return false;
TypeBinding originalDeclaringClass = this.declaringClass.original();
ReferenceBinding currentType = (ReferenceBinding) receiverType;
do {
if (originalDeclaringClass == currentType.original()) return true;
PackageBinding currentPackage = currentType.fPackage;
// package could be null for wildcards/intersection types, ignore and recurse in superclass
if (currentPackage != null && currentPackage != declaringPackage) return false;
} while ((currentType = currentType.superclass()) != null);
return false;
}