hi,
if you only want to content assist for ClassRegistry::init(B)-> you could
follow http://wiki.eclipse.org/Extending_PDT_2.2#Code_assist_strategies then
call context via
getStatementText() and parse this text manually in class
XYZCompletionStrategy(extends ClassMembersStrategy),instead of call
context.getLhsTypes().
for example you could use the following code in XYZCompletionStrategy#apply:
public void apply(ICompletionReporter reporter) throws
BadLocationException {
ICompletionContext context = getContext();
if (!(context instanceof ClassMemberContext)) {
return;
}
ClassMemberContext concreteContext = (ClassMemberContext) context;
CompletionRequestor requestor = concreteContext
.getCompletionRequestor();
String prefix = concreteContext.getPrefix();
boolean isParentCall = isParentCall(concreteContext);
String suffix = getSuffix(concreteContext);
SourceRange replaceRange = null;
if (suffix.equals("")) {
replaceRange = getReplacementRange(concreteContext);
} else {
replaceRange = getReplacementRangeWithBraces(concreteContext);
}
PHPVersion phpVersion = concreteContext.getPhpVersion();
Set<String> magicMethods = new HashSet<String>();
magicMethods.addAll(Arrays.asList(PHPMagicMethods
.getMethods(phpVersion)));
boolean exactName = requestor.isContextInformationMode();
List<IMethod> result = new LinkedList<IMethod>();
ISourceModuleContext sourceModuleContext = new FileContext(
concreteContext.getSourceModule(),
SourceParserUtil.getModuleDeclaration(concreteContext
.getSourceModule()));
String textSequence = concreteContext.getStatementText().toString();
if (textSequence.indexOf("ClassRegistry::init(") >= 0) {
textSequence = textSequence.substring(textSequence
.indexOf("ClassRegistry::init(")
+ "ClassRegistry::init(".length());
textSequence = textSequence.substring(0, textSequence
.lastIndexOf(")->"));
String className = textSequence.substring(1,
textSequence.length() - 1);
IType[] types = PHPTypeInferenceUtils.getModelElements(
new PHPClassType(className), sourceModuleContext,
concreteContext.getOffset());
for (IType type : types) {
try {
ITypeHierarchy hierarchy = getCompanion()
.getSuperTypeHierarchy(type, null);
IMethod[] methods = isParentCall ? PHPModelUtils
.getSuperTypeHierarchyMethod(type, hierarchy,
prefix, exactName, null) : PHPModelUtils
.getTypeHierarchyMethod(type, hierarchy, prefix,
exactName, null);
boolean inConstructor = isInConstructor(type, type
.getMethods(), concreteContext);
for (IMethod method : removeOverriddenElements(Arrays
.asList(methods))) {
if ((!isConstructor(method) || inConstructor
&& isSuperConstructor(method, type,
concreteContext))
&& !isFiltered(method, type,
concreteContext)) {
if
(magicMethods.contains(method.getElementName())) {
reporter.reportMethod(method, suffix,
replaceRange,
ProposalExtraInfo.MAGIC_METHOD);
} else {
result.add(method);
}
}
}
} catch (CoreException e) {
PHPCorePlugin.log(e);
}
}
for (IMethod method : result) {
reporter.reportMethod((IMethod) method, suffix,
replaceRange);
}
}
}
of course the above code is just an example,you need make some changes
to make ctrl+click and hover on method bbb(ClassRegistry::init('B')->bbb())
work,you still need class XYZGoalEvaluatorFactory.
Hope this works for you:)
On Fri, Dec 31, 2010 at 10:41 PM, Kooper <[email protected]>wrote:
> Hello,
>
> It is really simple - here it is:
>
> <?php
>
> class ClassRegistry {
> public static function init($classname) {
> $a = new $classname();
>
> if ($a) {
> return $a;
> }
>
> return null;
> }
> }
>
> class A {
> public function aaa() { echo "A"; }
> }
>
> class B {
> public function bbb() { echo "B"; }
> }
>
> ClassRegistry::init(B)->
>
>
> I'm not using quotes around class name in method call currently (it is
> because of quotes are included in value of classname in GoalEvaluator
> - just didn't handle this yet)
>
> --
> Victor Kupriyanov
>
> On Thu, Dec 30, 2010 at 4:00 PM, Roy Ganor <[email protected]> wrote:
> > Hi Victor,
> >
> > Can you provide a code snippet of your ClassRegistry class? Including the
> "init" static method.
> >
> > Thanks,
> > Roy
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]]
> On Behalf Of Kooper
> > Sent: Wednesday, December 29, 2010 12:55 PM
> > To: [email protected]
> > Subject: [pdt-dev] Extending PDT: type inference questions
> >
> > Hello,
> >
> > I'm trying to write a custom extension to PDT 2.2 that adds code
> assistance for
> > object instantiation for particular framework. I'm following the
> guidelines at
> > http://wiki.eclipse.org/Extending_PDT_2.2#Type_inference_hinting and
> have a
> > working code for exactly the case from the article:
> >
> > $myObject = ClassRegistry::init('MyClass');
> > $myObject->... // A list of methods of MyClass is shown ok
> >
> > However it seems like the same type inference approach does not work when
> > not using variable assignment:
> >
> > ClassRegistry::init('MyClass')->... // No proposals available
> >
> > Tracing goals evaluation factory for the latter case I found that this
> > code snippet does not bring up evaluation of any ExpressionTypeGoal goals
> for
> > context of the call, but starts with evaluation of
> MethodElementReturnTypeGoal
> > that later leads to evaluation of method 'ClassRegistry::init's code.
> >
> > Attempting to implement evaluation of MethodElementReturnTypeGoal I was
> > unable to access call context and actual arguments' values. Neither I
> > succeeded in attempts to obtain MethodReturnTypeGoal object (which has
> > getArguments() method)
> >
> >
> > I also tried to utilize code assist strategy via ClassMemberContext. At
> > first glance it looked promising. However I was unable to find out
> reciever
> > class for '->' operator, as ClassMemberContext.getLhsTypes() returns
> empty
> > list for the example above.
> >
> > Albeit I'm actually have access to call context with ClassMemberContext,
> I'm
> > not happy with it - as it provides only text of call context via
> > getStatementText() and it turns out that I have to parse this text
> manually.
> >
> > * So, can anybody help me by pointing directions that I should dig
> further?
> > * Is there an access from MethodElementReturnTypeGoal to call context or
> actual
> > call arguments?
> > * Why there is no attempt to evaluate goal for call context prior to
> > goal for method's content?
> > * Is there a way to access goal evaluator from ClassMemberContext?
> > * Do I have a broken installation or facing a known bug?
> >
> >
> > Thank you in advance.
> >
> > --
> > Victor Kupriyanov
> > _______________________________________________
> > pdt-dev mailing list
> > [email protected]
> > https://dev.eclipse.org/mailman/listinfo/pdt-dev
> > _______________________________________________
> > pdt-dev mailing list
> > [email protected]
> > https://dev.eclipse.org/mailman/listinfo/pdt-dev
> >
> _______________________________________________
> pdt-dev mailing list
> [email protected]
> https://dev.eclipse.org/mailman/listinfo/pdt-dev
>
--
Thanks!
Best Regards!
Zhao
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