/*
* Copyright (c) 2014 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.runtime.backtrace;
import com.oracle.truffle.api.frame.FrameDescriptor;
import com.oracle.truffle.api.frame.MaterializedFrame;
import com.oracle.truffle.api.source.SourceSection;
import org.jruby.truffle.nodes.CoreSourceSection;
import org.jruby.truffle.runtime.RubyArguments;
import org.jruby.truffle.runtime.RubyContext;
import org.jruby.truffle.runtime.control.TruffleFatalException;
import org.jruby.truffle.runtime.core.RubyException;
import org.jruby.truffle.runtime.methods.MethodLike;
import org.jruby.truffle.runtime.methods.RubyMethod;
import org.jruby.util.cli.Options;
import sun.security.ssl.Debug;
import java.util.ArrayList;
import java.util.List;
public class ImplementationDebugBacktraceFormatter implements BacktraceFormatter {
@Override
public String[] format(RubyContext context, RubyException exception, Backtrace backtrace) {
try {
final List<Activation> activations = backtrace.getActivations();
final List<String> lines = new ArrayList<>();
if (exception != null) {
lines.add(String.format("%s (%s)", exception.getMessage(), exception.getLogicalClass().getName()));
}
for (Activation activation : activations) {
formatActivation(context, activation, lines);
}
return lines.toArray(new String[lines.size()]);
} catch (Exception e) {
throw new TruffleFatalException("Exception while trying to format a Ruby call stack", e);
}
}
private static void formatActivation(RubyContext context, Activation activation, List<String> lines) {
lines.add(DebugBacktraceFormatter.formatBasicLine(activation));
final MaterializedFrame frame = activation.getMaterializedFrame();
final Object[] arguments = frame.getArguments();
final MethodLike method = RubyArguments.getMethod(arguments);
lines.add(String.format(" method = %s", method));
if (method instanceof RubyMethod) {
final RubyMethod rubyMethod = (RubyMethod) method;
if (rubyMethod.getDeclaringModule() == null) {
lines.add(String.format(" declaring module = null"));
} else {
lines.add(String.format(" declaring module = %s", rubyMethod.getDeclaringModule().getName()));
}
}
lines.add(" declaration frame:");
formatDeclarationFrame(context, RubyArguments.getDeclarationFrame(arguments), lines);
lines.add(String.format(" self = %s", DebugBacktraceFormatter.debugString(context, RubyArguments.getSelf(arguments))));
lines.add(String.format(" block = %s", RubyArguments.getBlock(arguments)));
lines.add(" arguments:");
for (int n = 0; n < RubyArguments.getUserArgumentsCount(arguments); n++) {
lines.add(String.format(" [%d] = %s", n, DebugBacktraceFormatter.debugString(context, RubyArguments.getUserArgument(arguments, n))));
}
lines.add(" frame:");
formatFrame(context, frame, lines);
}
private static void formatDeclarationFrame(RubyContext context, MaterializedFrame frame, List<String> lines) {
if (frame != null) {
formatDeclarationFrame(context, RubyArguments.getDeclarationFrame(frame.getArguments()), lines);
formatFrame(context, frame, lines);
}
}
private static void formatFrame(RubyContext context, MaterializedFrame frame, List<String> lines) {
final FrameDescriptor frameDescriptor = frame.getFrameDescriptor();
for (Object identifier : frameDescriptor.getIdentifiers()) {
lines.add(String.format(" %s = %s", identifier, DebugBacktraceFormatter.debugString(context, frame.getValue(frameDescriptor.findFrameSlot(identifier)))));
}
}
}