List of usage examples for org.eclipse.jdt.internal.compiler.lookup TypeConstants LENGTH
null LENGTH
To view the source code for org.eclipse.jdt.internal.compiler.lookup TypeConstants LENGTH.
Click Source Link
From source file:org.eclipse.jdt.internal.compiler.lookup.Scope.java
License:Open Source License
public FieldBinding findField(TypeBinding receiverType, char[] fieldName, InvocationSite invocationSite, boolean needResolve, boolean invisibleFieldsOk) { CompilationUnitScope unitScope = compilationUnitScope(); unitScope.recordTypeReference(receiverType); checkArrayField: {/*from w w w . java 2 s.c o m*/ TypeBinding leafType; switch (receiverType.kind()) { case Binding.BASE_TYPE: return null; case Binding.WILDCARD_TYPE: case Binding.INTERSECTION_TYPE: case Binding.TYPE_PARAMETER: // capture TypeBinding receiverErasure = receiverType.erasure(); if (!receiverErasure.isArrayType()) break checkArrayField; leafType = receiverErasure.leafComponentType(); break; case Binding.ARRAY_TYPE: leafType = receiverType.leafComponentType(); break; default: break checkArrayField; } if (leafType instanceof ReferenceBinding) if (!((ReferenceBinding) leafType).canBeSeenBy(this)) return new ProblemFieldBinding((ReferenceBinding) leafType, fieldName, ProblemReasons.ReceiverTypeNotVisible); if (CharOperation.equals(fieldName, TypeConstants.LENGTH)) { if ((leafType.tagBits & TagBits.HasMissingType) != 0) { return new ProblemFieldBinding(ArrayBinding.ArrayLength, null, fieldName, ProblemReasons.NotFound); } return ArrayBinding.ArrayLength; } return null; } ReferenceBinding currentType = (ReferenceBinding) receiverType; if (!currentType.canBeSeenBy(this)) return new ProblemFieldBinding(currentType, fieldName, ProblemReasons.ReceiverTypeNotVisible); currentType.initializeForStaticImports(); FieldBinding field = currentType.getField(fieldName, needResolve); // https://bugs.eclipse.org/bugs/show_bug.cgi?id=316456 boolean insideTypeAnnotations = this instanceof MethodScope && ((MethodScope) this).insideTypeAnnotation; if (field != null) { if (invisibleFieldsOk) { return field; } if (invocationSite == null || insideTypeAnnotations ? field.canBeSeenBy(getCurrentPackage()) : field.canBeSeenBy(currentType, invocationSite, this)) return field; return new ProblemFieldBinding(field /* closest match*/, field.declaringClass, fieldName, ProblemReasons.NotVisible); } // collect all superinterfaces of receiverType until the field is found in a supertype ReferenceBinding[] interfacesToVisit = null; int nextPosition = 0; FieldBinding visibleField = null; boolean keepLooking = true; FieldBinding notVisibleField = null; // we could hold onto the not visible field for extra error reporting while (keepLooking) { ReferenceBinding[] itsInterfaces = currentType.superInterfaces(); if (itsInterfaces != null && itsInterfaces != Binding.NO_SUPERINTERFACES) { if (interfacesToVisit == null) { interfacesToVisit = itsInterfaces; nextPosition = interfacesToVisit.length; } else { int itsLength = itsInterfaces.length; if (nextPosition + itsLength >= interfacesToVisit.length) System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition); nextInterface: for (int a = 0; a < itsLength; a++) { ReferenceBinding next = itsInterfaces[a]; for (int b = 0; b < nextPosition; b++) if (next == interfacesToVisit[b]) continue nextInterface; interfacesToVisit[nextPosition++] = next; } } } if ((currentType = currentType.superclass()) == null) break; unitScope.recordTypeReference(currentType); currentType.initializeForStaticImports(); currentType = (ReferenceBinding) currentType.capture(this, invocationSite == null ? 0 : invocationSite.sourceEnd()); if ((field = currentType.getField(fieldName, needResolve)) != null) { if (invisibleFieldsOk) { return field; } keepLooking = false; if (field.canBeSeenBy(receiverType, invocationSite, this)) { if (visibleField == null) visibleField = field; else return new ProblemFieldBinding(visibleField /* closest match*/, visibleField.declaringClass, fieldName, ProblemReasons.Ambiguous); } else { if (notVisibleField == null) notVisibleField = field; } } } // walk all visible interfaces to find ambiguous references if (interfacesToVisit != null) { ProblemFieldBinding ambiguous = null; done: for (int i = 0; i < nextPosition; i++) { ReferenceBinding anInterface = interfacesToVisit[i]; unitScope.recordTypeReference(anInterface); // no need to capture rcv interface, since member field is going to be static anyway if ((field = anInterface.getField(fieldName, true /*resolve*/)) != null) { if (invisibleFieldsOk) { return field; } if (visibleField == null) { visibleField = field; } else { ambiguous = new ProblemFieldBinding(visibleField /* closest match*/, visibleField.declaringClass, fieldName, ProblemReasons.Ambiguous); break done; } } else { ReferenceBinding[] itsInterfaces = anInterface.superInterfaces(); if (itsInterfaces != null && itsInterfaces != Binding.NO_SUPERINTERFACES) { int itsLength = itsInterfaces.length; if (nextPosition + itsLength >= interfacesToVisit.length) System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition); nextInterface: for (int a = 0; a < itsLength; a++) { ReferenceBinding next = itsInterfaces[a]; for (int b = 0; b < nextPosition; b++) if (next == interfacesToVisit[b]) continue nextInterface; interfacesToVisit[nextPosition++] = next; } } } } if (ambiguous != null) return ambiguous; } if (visibleField != null) return visibleField; if (notVisibleField != null) { return new ProblemFieldBinding(notVisibleField, currentType, fieldName, ProblemReasons.NotVisible); } return null; }
From source file:org.eclipse.objectteams.otdt.internal.core.compiler.bytecode.ConstantPoolObjectReader.java
License:Open Source License
private FieldBinding findFieldBinding(TypeBinding class_tb, char[] name, char[] descriptor) { if (class_tb instanceof ReferenceBinding) { ReferenceBinding class_rb = (ReferenceBinding) class_tb; return findFieldByName(class_rb, name); } else if (class_tb instanceof ArrayBinding) { if (!CharOperation.equals(name, TypeConstants.LENGTH)) { assert (false); }//from ww w . j av a 2 s .c om return ArrayBinding.ArrayLength; } else { //no fields on basetypes assert (false); return null; } }