public TypeBinding resolveType(BlockScope scope) {
// field and/or local are done before type lookups
// the only available value for the restrictiveFlag BEFORE
// the TC is Flag_Type Flag_LocalField and Flag_TypeLocalField
this.actualReceiverType = scope.enclosingReceiverType();
this.constant = Constant.NotAConstant;
if ((
/*this.codegenBinding =*/ this.binding =
scope.getBinding(
this.tokens, this.bits & ASTNode.RestrictiveFlagMASK, this, true /*resolve*/))
.isValidBinding()) {
switch (this.bits & ASTNode.RestrictiveFlagMASK) {
case Binding.VARIABLE: // ============only variable===========
case Binding.TYPE | Binding.VARIABLE:
if (this.binding instanceof LocalVariableBinding) {
this.bits &= ~ASTNode.RestrictiveFlagMASK; // clear bits
this.bits |= Binding.LOCAL;
return this.resolvedType = getOtherFieldBindings(scope);
}
if (this.binding instanceof FieldBinding) {
FieldBinding fieldBinding = (FieldBinding) this.binding;
MethodScope methodScope = scope.methodScope();
// check for forward references
if (this.indexOfFirstFieldBinding == 1
&& methodScope.enclosingSourceType() == fieldBinding.original().declaringClass
&& methodScope.lastVisibleFieldID >= 0
&& fieldBinding.id >= methodScope.lastVisibleFieldID
&& (!fieldBinding.isStatic() || methodScope.isStatic)) {
scope.problemReporter().forwardReference(this, 0, methodScope.enclosingSourceType());
}
this.bits &= ~ASTNode.RestrictiveFlagMASK; // clear bits
this.bits |= Binding.FIELD;
// // check for deprecated receiver type
// // deprecation check for receiver type if not first token
// if (indexOfFirstFieldBinding > 1) {
// if (isTypeUseDeprecated(this.actualReceiverType, scope))
// scope.problemReporter().deprecatedType(this.actualReceiverType, this);
// }
return this.resolvedType = getOtherFieldBindings(scope);
}
// thus it was a type
this.bits &= ~ASTNode.RestrictiveFlagMASK; // clear bits
this.bits |= Binding.TYPE;
case Binding.TYPE: // =============only type ==============
TypeBinding type = (TypeBinding) this.binding;
// if (isTypeUseDeprecated(type, scope))
// scope.problemReporter().deprecatedType(type, this);
return this.resolvedType = type;
}
}
// ========error cases===============
return this.resolvedType = this.reportError(scope);
}
/** Check and/or redirect the field access to the delegate receiver if any */
public TypeBinding checkFieldAccess(BlockScope scope) {
FieldBinding fieldBinding = (FieldBinding) this.binding;
MethodScope methodScope = scope.methodScope();
// check for forward references
if (this.indexOfFirstFieldBinding == 1
&& methodScope.enclosingSourceType() == fieldBinding.original().declaringClass
&& methodScope.lastVisibleFieldID >= 0
&& fieldBinding.id >= methodScope.lastVisibleFieldID
&& (!fieldBinding.isStatic() || methodScope.isStatic)) {
scope.problemReporter().forwardReference(this, 0, methodScope.enclosingSourceType());
}
this.bits &= ~ASTNode.RestrictiveFlagMASK; // clear bits
this.bits |= Binding.FIELD;
return getOtherFieldBindings(scope);
}
public FlowInfo analyseCode(
MethodScope initializationScope, FlowContext flowContext, FlowInfo flowInfo) {
if (this.binding != null && !this.binding.isUsed()) {
if (this.binding.isPrivate()
|| (this.binding.declaringClass != null && this.binding.declaringClass.isLocalType())) {
if (!initializationScope.referenceCompilationUnit().compilationResult.hasSyntaxError) {
initializationScope.problemReporter().unusedPrivateField(this);
}
}
}
if (this.initialization != null) {
flowInfo =
this.initialization
.analyseCode(initializationScope, flowContext, flowInfo)
.unconditionalInits();
flowInfo.markAsDefinitelyAssigned(this.binding);
}
return flowInfo;
}
/*
* Look for missing method @param tags
*/
private char[][] missingParamTags(Binding paramNameRefBinding, MethodScope methScope) {
// Verify if there's some possible param tag
AbstractMethodDeclaration md = methScope.referenceMethod();
int paramTagsSize = this.paramReferences == null ? 0 : this.paramReferences.length;
if (md == null) return null;
int argumentsSize = md.arguments == null ? 0 : md.arguments.length;
if (argumentsSize == 0) return null;
// Store all method arguments if there's no @param in javadoc
if (paramTagsSize == 0) {
char[][] missingParams = new char[argumentsSize][];
for (int i = 0; i < argumentsSize; i++) {
missingParams[i] = md.arguments[i].name;
}
return missingParams;
}
// Look for missing arguments
char[][] missingParams = new char[argumentsSize][];
int size = 0;
for (int i = 0; i < argumentsSize; i++) {
Argument arg = md.arguments[i];
boolean found = false;
int paramNameRefCount = 0;
for (int j = 0; j < paramTagsSize && !found; j++) {
JavadocSingleNameReference param = this.paramReferences[j];
if (arg.binding == param.binding) {
if (param.binding
== paramNameRefBinding) { // do not count first occurence of param name reference
paramNameRefCount++;
found = paramNameRefCount > 1;
} else {
found = true;
}
}
}
if (!found) {
missingParams[size++] = arg.name;
}
}
if (size > 0) {
if (size != argumentsSize) {
System.arraycopy(missingParams, 0, missingParams = new char[size][], 0, size);
}
return missingParams;
}
return null;
}
public void resolve(MethodScope initializationScope) {
// the two <constant = Constant.NotAConstant> could be regrouped into
// a single line but it is clearer to have two lines while the reason of their
// existence is not at all the same. See comment for the second one.
// --------------------------------------------------------
if ((this.bits & ASTNode.HasBeenResolved) != 0) return;
if (this.binding == null || !this.binding.isValidBinding()) return;
this.bits |= ASTNode.HasBeenResolved;
// check if field is hiding some variable - issue is that field binding already got inserted in
// scope
// thus must lookup separately in super type and outer context
ClassScope classScope = initializationScope.enclosingClassScope();
if (classScope != null) {
checkHiding:
{
SourceTypeBinding declaringType = classScope.enclosingSourceType();
checkHidingSuperField:
{
if (declaringType.superclass == null) break checkHidingSuperField;
Binding existingVariable =
classScope.findField(
declaringType.superclass, this.name, this, false /*do not resolve hidden field*/);
if (existingVariable == null) break checkHidingSuperField; // keep checking outer scenario
if (!existingVariable.isValidBinding())
break checkHidingSuperField; // keep checking outer scenario
if (existingVariable instanceof FieldBinding) {
FieldBinding existingField = (FieldBinding) existingVariable;
if (existingField.original() == this.binding)
break checkHidingSuperField; // keep checking outer scenario
}
// collision with supertype field
initializationScope.problemReporter().fieldHiding(this, existingVariable);
break checkHiding; // already found a matching field
}
// only corner case is: lookup of outer field through static declaringType, which isn't
// detected by #getBinding as lookup starts
// from outer scope. Subsequent static contexts are detected for free.
Scope outerScope = classScope.parent;
if (outerScope.kind == Scope.COMPILATION_UNIT_SCOPE) break checkHiding;
Binding existingVariable =
outerScope.getBinding(
this.name, Binding.VARIABLE, this, false /*do not resolve hidden field*/);
if (existingVariable == null) break checkHiding;
if (!existingVariable.isValidBinding()) break checkHiding;
if (existingVariable == this.binding) break checkHiding;
if (existingVariable instanceof FieldBinding) {
FieldBinding existingField = (FieldBinding) existingVariable;
if (existingField.original() == this.binding) break checkHiding;
if (!existingField.isStatic() && declaringType.isStatic()) break checkHiding;
}
// collision with outer field or local variable
initializationScope.problemReporter().fieldHiding(this, existingVariable);
}
}
if (this.type != null) { // enum constants have no declared type
this.type.resolvedType = this.binding.type; // update binding for type reference
}
FieldBinding previousField = initializationScope.initializedField;
int previousFieldID = initializationScope.lastVisibleFieldID;
try {
initializationScope.initializedField = this.binding;
initializationScope.lastVisibleFieldID = this.binding.id;
// resolveAnnotations(initializationScope, this.annotations, this.binding);
// the resolution of the initialization hasn't been done
if (this.initialization != null) {
TypeBinding fieldType = this.binding.type;
TypeBinding initializationType;
this.initialization.setExpectedType(
fieldType); // needed in case of generic method invocation
if (this.initialization instanceof ArrayInitializer) {
if ((initializationType =
this.initialization.resolveTypeExpecting(initializationScope, fieldType))
!= null) {
((ArrayInitializer) this.initialization).binding = (ArrayBinding) initializationType;
}
} else if ((initializationType = this.initialization.resolveType(initializationScope))
!= null) {
if (fieldType
!= initializationType) // must call before computeConversion() and typeMismatchError()
initializationScope
.compilationUnitScope()
.recordTypeConversion(fieldType, initializationType);
if (this.initialization.isConstantValueOfTypeAssignableToType(
initializationType, fieldType)
|| (fieldType.isBaseType()
&& BaseTypeBinding.isWidening(fieldType.id, initializationType.id))
|| initializationType.isCompatibleWith(fieldType)) {
} else if (initializationScope.isBoxingCompatibleWith(initializationType, fieldType)
|| (initializationType.isBaseType() // narrowing then boxing ?
&& initializationScope.compilerOptions().sourceLevel
>= ClassFileConstants.JDK1_5 // autoboxing
&& !fieldType.isBaseType()
&& initialization.isConstantValueOfTypeAssignableToType(
initializationType,
initializationScope.environment().computeBoxingType(fieldType)))) {
} else {
initializationScope
.problemReporter()
.typeMismatchError(initializationType, fieldType, this);
}
}
// check for assignment with no effect
if (this.binding == Assignment.getDirectBinding(this.initialization)) {
initializationScope.problemReporter().assignmentHasNoEffect(this, this.name);
}
}
// Resolve Javadoc comment if one is present
if (this.javadoc != null) {
/*
if (classScope != null) {
this.javadoc.resolve(classScope);
}
*/
this.javadoc.resolve(initializationScope);
} else if (this.binding.declaringClass != null
&& !this.binding.declaringClass.isLocalType()) {
initializationScope
.problemReporter()
.javadocMissing(this.sourceStart, this.sourceEnd, this.binding.modifiers);
}
} finally {
initializationScope.initializedField = previousField;
initializationScope.lastVisibleFieldID = previousFieldID;
}
}