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Re: [Dltk-dev] [pdt-dev] Check if any class in the superclasshierarchy implements an interface
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After some debugging i've noticed some strange behavior in the PHPIndexingVisitorExtension:
The following code throws a ModelException when being executed on a SourceModule containing a PHP 5 namespace,
and works as expected (no exception) without the namespace declaration:
public boolean endvisit(TypeDeclaration s) {
try {
if (s instanceof ClassDeclaration) {
IType type = sourceModule.getType(s.getName());
ITypeHierarchy hierarchy = type.newSupertypeHierarchy(new NullProgressMonitor());
}
} catch (Exception e) {
e.printStackTrace();
}
}
The PHP class looks like this:
<?php
namespace My\Test\Space;
class SomeClass {
public function foobar() {
}
}
Without the namespace declaration, the call to newSupertypeHierarchy() works and returns an ITypeHierarchy, but with
the namespace i'm getting:
SomeClass [in SomeClass.php [in <default> [in src [in test]]]] does not exist
What's the difference for the newSupertypeHierarchy() call when it's being used inside a namespace?
The full stack trace of the exception:
org.eclipse.dltk.core.ModelException: SomeClass [in SomeClass.php [in <default> [in src [in test]]]] does not exist
at org.eclipse.dltk.internal.core.ModelOperation.runOperation(ModelOperation.java:760)
at org.eclipse.dltk.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:404)
at org.eclipse.dltk.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:369)
at com.dubture.symfony.core.index.SymfonyIndexingVisitorExtension.endvisit(SymfonyIndexingVisitorExtension.java:353)
at org.eclipse.php.internal.core.index.PhpIndexingVisitor.endvisit(PhpIndexingVisitor.java:208)
at org.eclipse.dltk.ast.declarations.TypeDeclaration.traverse(TypeDeclaration.java:160)
at org.eclipse.dltk.ast.statements.Block.traverse(Block.java:43)
at org.eclipse.dltk.ast.declarations.TypeDeclaration.traverse(TypeDeclaration.java:158)
at org.eclipse.dltk.ast.statements.Block.traverse(Block.java:43)
at org.eclipse.dltk.ast.declarations.ModuleDeclaration.traverse(ModuleDeclaration.java:71)
at org.eclipse.php.internal.core.index.PhpIndexingParser.parseSourceModule(PhpIndexingParser.java:30)
at com.dubture.symfony.core.index.SymfonyIndexingParser.parseSourceModule(SymfonyIndexingParser.java:29)
at org.eclipse.dltk.core.index2.AbstractIndexer.indexDocument(AbstractIndexer.java:45)
at org.eclipse.dltk.internal.core.index.sql.SqlIndexer.indexDocument(SqlIndexer.java:143)
at org.eclipse.dltk.internal.core.index2.AddSourceModuleRequest.run(AddSourceModuleRequest.java:47)
at org.eclipse.dltk.core.search.indexing.AbstractJob.execute(AbstractJob.java:76)
at org.eclipse.dltk.internal.core.search.processing.JobManager.run(JobManager.java:467)
at java.lang.Thread.run(Thread.java:680)
regards
-robert
On Thu, Oct 27, 2011 at 5:21 PM, Robert Gruendler
<r.gruendler@xxxxxxxxx> wrote:
Here's what i've come up with so far:
BindingResolver resolver = new
DefaultBindingResolver(sourceModule, sourceModule.getOwner());
IType type = sourceModule.getType(currentClass.getName());
PHPClassType evaluatedType =
PHPClassType.fromIType(type);
TypeBinding binding = new TypeBinding(resolver,
evaluatedType, type);
ITypeBinding typeBinding =
Bindings.findTypeInHierarchy(binding,
"Symfony\\Component\\DependencyInjection\\ContainerAwareInterface");
However, in the call to findTypeInHierarchy(), i'm getting a
ModelException:
org.eclipse.dltk.core.ModelException: UserController [in
UserController.php [in Acme/DemoBundle/Controller [in src [in
Test]]]] does not exist
UserController is the class being indexed and the above 5 lines of
code are being called inside the endvisit(ModuleDeclaration) of my
IndexingVisitor.
The Type definitely exists. Any ideas why i'm getting this
Exception?
thanks again,
-robert
On 10/27/11 4:01 PM, Robert Gruendler wrote:
Hi,
findTypeInHierarchy() expectes an ITypeBinding as the first
parameter. In the IndexingVisitorExtension
i only have AstNodes from the package org.eclipse.php.internal.core.compiler.ast.nodes.*
available.
It looks like the TypeDeclarations from the org.eclipse.php.internal.core.ast.nodes.*
package
have a method resolveTypeBinding() which returns an ITypeBinding.
This raises a more general question: What's the difference between
the AstNode classes in the 2 packages:
org.eclipse.php.internal.core.compiler.ast.nodes.*
org.eclipse.php.internal.core.ast.nodes.*
And if i'm inside a PHPASTVisitor, can i convert the classes from
the org.eclipse.php.internal.core.compiler.ast.nodes somehow
to the corresponding org.eclipse.php.internal.core.ast.nodes.*
class?
regards
-robert
ps: i've tried to search the pdt source for any examples of
findTypeInHierarchy(), but it looks like it's not
being used anywhere.
On 10/27/11 2:33 PM, Roy Ganor wrote:
Hi,
Try using org.eclipse.php.internal.core.ast.nodes.Bindings.findTypeInHierarchy(ITypeBinding, String)
Roy
-----Original Message-----
From: pdt-dev-bounces@xxxxxxxxxxx [mailto:pdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Robert Gruendler
Sent: Thursday, October 27, 2011 12:36 PM
To: pdt-dev@xxxxxxxxxxx
Subject: [pdt-dev] Check if any class in the superclasshierarchy implements an interface
Hi,
i'm trying to check in my IndexingVisitorExtension if a visited class
implements a certain interface.
The ClassDeclaration's "getSuperclasses()" method seemed to be a way to
do this,
but as it turns out it only evaluates the direct superclass and the
direct implemented
interfaces.
So i'm wondering if i somehow can walk through the complete superclass
hierarchy during
indexing of a php class?
regards
-robert
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