public void resolveReceiver() { if (this.receiver == null) return; if (this.receiver.modifiers != 0) { this.scope .problemReporter() .illegalModifiers( this.receiver.declarationSourceStart, this.receiver.declarationSourceEnd); } TypeBinding resolvedReceiverType = this.receiver.type.resolvedType; if (this.binding == null || resolvedReceiverType == null || !resolvedReceiverType.isValidBinding()) { return; } ReferenceBinding declaringClass = this.binding.declaringClass; /* neither static methods nor methods in anonymous types can have explicit 'this' */ if (this.isStatic() || declaringClass.isAnonymousType()) { this.scope.problemReporter().disallowedThisParameter(this.receiver); return; // No need to do further validation } ReferenceBinding enclosingReceiver = this.scope.enclosingReceiverType(); if (this.isConstructor()) { /* Only non static member types or local types can declare explicit 'this' params in constructors */ if (declaringClass.isStatic() || (declaringClass.tagBits & (TagBits.IsLocalType | TagBits.IsMemberType)) == 0) { /* neither member nor local type */ this.scope.problemReporter().disallowedThisParameter(this.receiver); return; // No need to do further validation } enclosingReceiver = enclosingReceiver.enclosingType(); } char[][] tokens = (this.receiver.qualifyingName == null) ? null : this.receiver.qualifyingName.getName(); if (this.isConstructor()) { if (tokens == null || tokens.length > 1 || !CharOperation.equals(enclosingReceiver.sourceName(), tokens[0])) { this.scope .problemReporter() .illegalQualifierForExplicitThis(this.receiver, enclosingReceiver); this.receiver.qualifyingName = null; } } else if (tokens != null && tokens.length > 0) { this.scope.problemReporter().illegalQualifierForExplicitThis2(this.receiver); this.receiver.qualifyingName = null; } if (TypeBinding.notEquals(enclosingReceiver, resolvedReceiverType)) { this.scope.problemReporter().illegalTypeForExplicitThis(this.receiver, enclosingReceiver); } if (this.receiver.type.hasNullTypeAnnotation(AnnotationPosition.ANY)) { this.scope.problemReporter().nullAnnotationUnsupportedLocation(this.receiver.type); } }