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spec/truffle/tags/core/thread/backtrace/location/inspect_tags.txt
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truffle/src/main/java/org/jruby/truffle/nodes/core/ThreadBacktraceLocationNodes.java
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/* | ||
* Copyright (c) 2015 Oracle and/or its affiliates. All rights reserved. This | ||
* code is released under a tri EPL/GPL/LGPL license. You can use it, | ||
* redistribute it and/or modify it under the terms of the: | ||
* | ||
* Eclipse Public License version 1.0 | ||
* GNU General Public License version 2 | ||
* GNU Lesser General Public License version 2.1 | ||
*/ | ||
package org.jruby.truffle.nodes.core; | ||
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import com.oracle.truffle.api.CompilerDirectives; | ||
import com.oracle.truffle.api.dsl.Specialization; | ||
import com.oracle.truffle.api.nodes.Node; | ||
import com.oracle.truffle.api.object.*; | ||
import com.oracle.truffle.api.source.NullSourceSection; | ||
import com.oracle.truffle.api.source.SourceSection; | ||
import org.jruby.truffle.nodes.objects.Allocator; | ||
import org.jruby.truffle.runtime.RubyContext; | ||
import org.jruby.truffle.runtime.backtrace.Activation; | ||
import org.jruby.truffle.runtime.core.RubyBasicObject; | ||
import org.jruby.truffle.runtime.core.RubyClass; | ||
import org.jruby.truffle.runtime.core.RubyString; | ||
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import java.util.EnumSet; | ||
import java.util.concurrent.locks.ReentrantLock; | ||
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@CoreClass(name = "Thread::Backtrace::Location") | ||
public class ThreadBacktraceLocationNodes { | ||
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private static final HiddenKey ACTIVATION_IDENTIFIER = new HiddenKey("activation"); | ||
private static final Property ACTIVATION_PROPERTY; | ||
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static { | ||
Shape.Allocator allocator = RubyBasicObject.LAYOUT.createAllocator(); | ||
ACTIVATION_PROPERTY = Property.create(ACTIVATION_IDENTIFIER, allocator.locationForType(ReentrantLock.class, EnumSet.of(LocationModifier.NonNull)), 0); | ||
} | ||
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public static Allocator createThreadBacktraceLocationAllocator(Shape emptyShape) { | ||
final Shape shape = emptyShape.addProperty(ACTIVATION_PROPERTY); | ||
final DynamicObjectFactory factory = shape.createFactory(); | ||
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return new Allocator() { | ||
@Override | ||
public RubyBasicObject allocate(RubyContext context, RubyClass rubyClass, Node currentNode) { | ||
return new RubyBasicObject(rubyClass, factory.newInstance(new ReentrantLock())); | ||
} | ||
}; | ||
} | ||
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public static void setActivation(RubyBasicObject threadBacktraceLocation, Activation activation) { | ||
assert threadBacktraceLocation.getDynamicObject().getShape().hasProperty(ACTIVATION_IDENTIFIER); | ||
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try { | ||
ACTIVATION_PROPERTY.set(threadBacktraceLocation.getDynamicObject(), activation, threadBacktraceLocation.getDynamicObject().getShape()); | ||
} catch (IncompatibleLocationException | FinalLocationException e) { | ||
throw new UnsupportedOperationException(); | ||
} | ||
} | ||
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protected static Activation getActivation(RubyBasicObject threadBacktraceLocation) { | ||
assert threadBacktraceLocation.getDynamicObject().getShape().hasProperty(ACTIVATION_IDENTIFIER); | ||
return (Activation) ACTIVATION_PROPERTY.get(threadBacktraceLocation.getDynamicObject(), true); | ||
} | ||
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@CoreMethod(names = "absolute_path") | ||
public abstract static class AbsolutePathNode extends UnaryCoreMethodNode { | ||
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public AbsolutePathNode(RubyContext context, SourceSection sourceSection) { | ||
super(context, sourceSection); | ||
} | ||
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@CompilerDirectives.TruffleBoundary | ||
@Specialization | ||
public RubyString absolutePath(RubyBasicObject threadBacktraceLocation) { | ||
final Activation activation = getActivation(threadBacktraceLocation); | ||
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final SourceSection sourceSection = activation.getCallNode().getEncapsulatingSourceSection(); | ||
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if (sourceSection instanceof NullSourceSection) { | ||
return getContext().makeString(sourceSection.getShortDescription()); | ||
} | ||
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// TODO CS 30-Apr-15: not absolute - not sure how to solve that | ||
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return getContext().makeString(sourceSection.getSource().getPath()); | ||
} | ||
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} | ||
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@CoreMethod(names = {"to_s", "inspect"}) | ||
public abstract static class ToSNode extends UnaryCoreMethodNode { | ||
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public ToSNode(RubyContext context, SourceSection sourceSection) { | ||
super(context, sourceSection); | ||
} | ||
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@CompilerDirectives.TruffleBoundary | ||
@Specialization | ||
public RubyString toS(RubyBasicObject threadBacktraceLocation) { | ||
final Activation activation = getActivation(threadBacktraceLocation); | ||
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final SourceSection sourceSection = activation.getCallNode().getEncapsulatingSourceSection(); | ||
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if (sourceSection instanceof NullSourceSection) { | ||
return getContext().makeString(sourceSection.getShortDescription()); | ||
} | ||
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return getContext().makeString(String.format("%s:%d:in `%s'", | ||
sourceSection.getSource().getShortName(), | ||
sourceSection.getStartLine(), | ||
sourceSection.getIdentifier())); | ||
} | ||
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} | ||
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} |
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