com.oracle.graal.python.nodes.bytecode.SendNode Maven / Gradle / Ivy
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package com.oracle.graal.python.nodes.bytecode;
import static com.oracle.graal.python.util.PythonUtils.tsLiteral;
import com.oracle.graal.python.builtins.objects.PNone;
import com.oracle.graal.python.builtins.objects.exception.PBaseException;
import com.oracle.graal.python.builtins.objects.exception.StopIterationBuiltins;
import com.oracle.graal.python.builtins.objects.generator.CommonGeneratorBuiltins;
import com.oracle.graal.python.builtins.objects.generator.PGenerator;
import com.oracle.graal.python.lib.GetNextNode;
import com.oracle.graal.python.lib.PyIterCheckNode;
import com.oracle.graal.python.lib.PyObjectCallMethodObjArgs;
import com.oracle.graal.python.nodes.PNodeWithContext;
import com.oracle.graal.python.nodes.object.BuiltinClassProfiles.IsBuiltinObjectProfile;
import com.oracle.graal.python.runtime.exception.PException;
import com.oracle.truffle.api.dsl.Bind;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Cached.Exclusive;
import com.oracle.truffle.api.dsl.Fallback;
import com.oracle.truffle.api.dsl.GenerateInline;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.api.strings.TruffleString;
@GenerateInline(false) // used in BCI root node
public abstract class SendNode extends PNodeWithContext {
private static final TruffleString T_SEND = tsLiteral("send");
// Returns true when the generator finished
public abstract boolean execute(VirtualFrame virtualFrame, int stackTop, Object iter, Object arg);
@Specialization
static boolean doGenerator(VirtualFrame virtualFrame, int stackTop, PGenerator generator, Object arg,
@Bind("this") Node inliningTarget,
@Cached CommonGeneratorBuiltins.SendNode sendNode,
@Exclusive @Cached IsBuiltinObjectProfile stopIterationProfile,
@Exclusive @Cached StopIterationBuiltins.StopIterationValueNode getValue) {
try {
Object value = sendNode.execute(virtualFrame, generator, arg);
virtualFrame.setObject(stackTop, value);
return false;
} catch (PException e) {
handleException(virtualFrame, e, inliningTarget, stopIterationProfile, getValue, stackTop);
return true;
}
}
@Specialization(guards = "iterCheck.execute(inliningTarget, iter)", limit = "1")
static boolean doIterator(VirtualFrame virtualFrame, int stackTop, Object iter, @SuppressWarnings("unused") PNone arg,
@Bind("this") Node inliningTarget,
@SuppressWarnings("unused") @Cached PyIterCheckNode iterCheck,
@Cached GetNextNode getNextNode,
@Exclusive @Cached IsBuiltinObjectProfile stopIterationProfile,
@Exclusive @Cached StopIterationBuiltins.StopIterationValueNode getValue) {
try {
Object value = getNextNode.execute(virtualFrame, iter);
virtualFrame.setObject(stackTop, value);
return false;
} catch (PException e) {
handleException(virtualFrame, e, inliningTarget, stopIterationProfile, getValue, stackTop);
return true;
}
}
@Fallback
static boolean doOther(VirtualFrame virtualFrame, int stackTop, Object obj, Object arg,
@Bind("this") Node inliningTarget,
@Cached PyObjectCallMethodObjArgs callMethodNode,
@Exclusive @Cached IsBuiltinObjectProfile stopIterationProfile,
@Exclusive @Cached StopIterationBuiltins.StopIterationValueNode getValue) {
try {
Object value = callMethodNode.execute(virtualFrame, inliningTarget, obj, T_SEND, arg);
virtualFrame.setObject(stackTop, value);
return false;
} catch (PException e) {
handleException(virtualFrame, e, inliningTarget, stopIterationProfile, getValue, stackTop);
return true;
}
}
private static void handleException(VirtualFrame frame, PException e, Node inliningTarget, IsBuiltinObjectProfile stopIterationProfile, StopIterationBuiltins.StopIterationValueNode getValue,
int stackTop) {
e.expectStopIteration(inliningTarget, stopIterationProfile);
Object value = getValue.execute((PBaseException) e.getUnreifiedException());
frame.setObject(stackTop, null);
frame.setObject(stackTop - 1, value);
}
public static SendNode create() {
return SendNodeGen.create();
}
}
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