private MethodDeclaration findAfter(
char[] startWith,
Scope s,
int from,
int to,
int maxLineCount,
boolean outsideEnclosingBlock,
char[][] discouragedNames,
UnresolvedReferenceNameRequestor nameRequestor) {
this.requestor = nameRequestor;
// reinitialize completion scanner to be usable as a normal scanner
this.completionScanner.cursorLocation = 0;
if (!outsideEnclosingBlock) {
// compute location of the end of the current block
this.completionScanner.resetTo(from + 1, to);
this.completionScanner.jumpOverBlock();
to = this.completionScanner.startPosition - 1;
}
int maxEnd =
this.completionScanner.getLineEnd(
Util.getLineNumber(
from, this.completionScanner.lineEnds, 0, this.completionScanner.linePtr)
+ maxLineCount);
int end;
if (maxEnd < 0) {
end = to;
} else {
end = maxEnd < to ? maxEnd : to;
}
this.parser.startRecordingIdentifiers(from, end);
MethodDeclaration fakeMethod =
this.parser.parseSomeStatements(
from,
end,
outsideEnclosingBlock ? FAKE_BLOCKS_COUNT : 0,
s.compilationUnitScope().referenceContext);
this.parser.stopRecordingIdentifiers();
if (!this.initPotentialNamesTables(discouragedNames)) return null;
this.parentsPtr = -1;
this.parents = new ASTNode[10];
return fakeMethod;
}
private MethodDeclaration findBefore(
char[] startWith,
Scope s,
int from,
int recordTo,
int parseTo,
int maxLineCount,
char[][] discouragedNames,
UnresolvedReferenceNameRequestor nameRequestor) {
this.requestor = nameRequestor;
// reinitialize completion scanner to be usable as a normal scanner
this.completionScanner.cursorLocation = 0;
int minStart =
this.completionScanner.getLineStart(
Util.getLineNumber(
recordTo, this.completionScanner.lineEnds, 0, this.completionScanner.linePtr)
- maxLineCount);
int start;
int fakeBlocksCount;
if (minStart <= from) {
start = from;
fakeBlocksCount = 0;
} else {
start = minStart;
fakeBlocksCount = FAKE_BLOCKS_COUNT;
}
this.parser.startRecordingIdentifiers(start, recordTo);
MethodDeclaration fakeMethod =
this.parser.parseSomeStatements(
start, parseTo, fakeBlocksCount, s.compilationUnitScope().referenceContext);
this.parser.stopRecordingIdentifiers();
if (!this.initPotentialNamesTables(discouragedNames)) return null;
this.parentsPtr = -1;
this.parents = new ASTNode[10];
return fakeMethod;
}
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;
}
}
