package org.graalvm.compiler.truffle.test;
import org.graalvm.compiler.truffle.test.nodes.AbstractTestNode;
import org.graalvm.compiler.truffle.test.nodes.RootTestNode;
import org.graalvm.polyglot.Context;
import org.junit.Test;
import com.oracle.truffle.api.CallTarget;
import com.oracle.truffle.api.Truffle;
import com.oracle.truffle.api.frame.FrameDescriptor;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.ControlFlowException;
import com.oracle.truffle.api.nodes.DirectCallNode;
import com.oracle.truffle.api.nodes.ExplodeLoop;
import com.oracle.truffle.api.nodes.SlowPathException;
public class ControlFlowExceptionPartialEvaluationTest extends PartialEvaluationTest {
public static Object constant42() {
return 42;
}
@Test
public void catchControlFlowException() {
FrameDescriptor fd = new FrameDescriptor();
AbstractTestNode result = new CatchControlFlowExceptionTestNode(new ThrowControlFlowExceptionTestNode());
assertPartialEvalEquals("constant42", new RootTestNode(fd, "catchControlFlowException", result));
}
@Test
public void catchSlowPathAndControlFlowException() {
FrameDescriptor fd = new FrameDescriptor();
AbstractTestNode result = new CatchSlowPathAndControlFlowExceptionTestNode(new ThrowControlFlowExceptionTestNode());
assertPartialEvalEquals("constant42", new RootTestNode(fd, "catchSlowPathAndControlFlowException", result));
}
@Test
public void catchControlFlowExceptionWithLoopExplosion() {
FrameDescriptor fd = new FrameDescriptor();
AbstractTestNode result = new CatchControlFlowExceptionTestNode(new BlockTestNode(new ThrowControlFlowExceptionTestNode()));
assertPartialEvalEquals("constant42", new RootTestNode(fd, "catchControlFlowExceptionWithLoopExplosion", result));
}
@Test
public void catchControlFlowExceptionFromCall() {
setupContext(Context.newBuilder().allowExperimentalOptions(true).option("engine.Inlining", "true").build());
CallTarget callTarget = Truffle.getRuntime().createCallTarget(new RootTestNode(new FrameDescriptor(), "throwControlFlowException", new ThrowControlFlowExceptionTestNode()));
AbstractTestNode result = new CatchControlFlowExceptionTestNode(new CallTestNode(callTarget));
assertPartialEvalEquals("constant42", new RootTestNode(new FrameDescriptor(), "catchControlFlowExceptionFromCall", result));
}
public static class ThrowControlFlowExceptionTestNode extends AbstractTestNode {
@Override
public int execute(VirtualFrame frame) {
throw new ControlFlowException();
}
}
public static class CatchControlFlowExceptionTestNode extends AbstractTestNode {
@Child private AbstractTestNode child;
public CatchControlFlowExceptionTestNode(AbstractTestNode child) {
this.child = child;
}
@Override
public int execute(VirtualFrame frame) {
try {
return child.execute(frame);
} catch (ControlFlowException e) {
return 42;
}
}
}
public static class CatchSlowPathAndControlFlowExceptionTestNode extends AbstractTestNode {
@Child private AbstractTestNode child;
public CatchSlowPathAndControlFlowExceptionTestNode(AbstractTestNode child) {
this.child = child;
}
@Override
public int execute(VirtualFrame frame) {
try {
return executeChild(frame);
} catch (SlowPathException spe) {
return -1;
} catch (ControlFlowException e) {
return 42;
}
}
@SuppressWarnings("unused")
private int executeChild(VirtualFrame frame) throws SlowPathException {
return child.execute(frame);
}
}
public static class BlockTestNode extends AbstractTestNode {
@Children private final AbstractTestNode[] statements;
public BlockTestNode(AbstractTestNode... statements) {
this.statements = statements;
}
@Override
public int execute(VirtualFrame frame) {
return executeSpecial(frame);
}
@ExplodeLoop
private int executeSpecial(VirtualFrame frame) {
int result = 0;
for (AbstractTestNode statement : statements) {
result = statement.execute(frame);
}
return result;
}
}
public static class CallTestNode extends AbstractTestNode {
@Child private DirectCallNode callNode;
public CallTestNode(CallTarget callTarget) {
this.callNode = Truffle.getRuntime().createDirectCallNode(callTarget);
}
@Override
public int execute(VirtualFrame frame) {
return (int) callNode.call(new Object[0]);
}
}
}