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package org.pkl.thirdparty.truffle.polyglot;
import java.io.InputStream;
import java.io.OutputStream;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Consumer;
import java.util.function.Predicate;
import org.pkl.thirdparty.graalvm.options.OptionDescriptors;
import org.pkl.thirdparty.graalvm.polyglot.Context;
import org.pkl.thirdparty.graalvm.polyglot.Engine;
import org.pkl.thirdparty.graalvm.polyglot.EnvironmentAccess;
import org.pkl.thirdparty.graalvm.polyglot.HostAccess;
import org.pkl.thirdparty.graalvm.polyglot.Instrument;
import org.pkl.thirdparty.graalvm.polyglot.Language;
import org.pkl.thirdparty.graalvm.polyglot.PolyglotAccess;
import org.pkl.thirdparty.graalvm.polyglot.SandboxPolicy;
import org.pkl.thirdparty.graalvm.polyglot.Source;
import org.pkl.thirdparty.graalvm.polyglot.impl.AbstractPolyglotImpl.AbstractEngineDispatch;
import org.pkl.thirdparty.graalvm.polyglot.impl.AbstractPolyglotImpl.LogHandler;
import org.pkl.thirdparty.graalvm.polyglot.io.IOAccess;
import org.pkl.thirdparty.graalvm.polyglot.io.ProcessHandler;
import org.pkl.thirdparty.graalvm.polyglot.management.ExecutionEvent;
import org.pkl.thirdparty.graalvm.polyglot.management.ExecutionListener;
import org.pkl.thirdparty.truffle.api.Truffle;
import org.pkl.thirdparty.truffle.api.instrumentation.EventBinding;
import org.pkl.thirdparty.truffle.api.instrumentation.EventContext;
import org.pkl.thirdparty.truffle.api.instrumentation.ExecutionEventNode;
import org.pkl.thirdparty.truffle.api.instrumentation.ExecutionEventNodeFactory;
import org.pkl.thirdparty.truffle.api.instrumentation.Instrumenter;
import org.pkl.thirdparty.truffle.api.instrumentation.SourceSectionFilter;
import org.pkl.thirdparty.truffle.api.instrumentation.StandardTags;
import org.pkl.thirdparty.truffle.api.instrumentation.Tag;
final class PolyglotEngineDispatch extends AbstractEngineDispatch {
private final PolyglotImpl polyglot;
protected PolyglotEngineDispatch(PolyglotImpl polyglot) {
super(polyglot);
this.polyglot = polyglot;
}
@Override
public void setAPI(Object oreceiver, Engine engine) {
((PolyglotEngineImpl) oreceiver).api = engine;
}
@Override
public Language requirePublicLanguage(Object oreceiver, String id) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.requirePublicLanguage(id);
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public Instrument requirePublicInstrument(Object oreceiver, String id) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.requirePublicInstrument(id);
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public void close(Object oreceiver, Object apiObject, boolean cancelIfExecuting) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
receiver.ensureClosed(cancelIfExecuting, false);
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public Map getInstruments(Object oreceiver) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.getInstruments();
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public Map getLanguages(Object oreceiver) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.getLanguages();
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public OptionDescriptors getOptions(Object oreceiver) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.getOptions();
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public Context createContext(Object oreceiver, SandboxPolicy sandboxPolicy, OutputStream out, OutputStream err, InputStream in,
boolean allowHostLookup,
HostAccess hostAccess, PolyglotAccess polyglotAccess, boolean allowNativeAccess,
boolean allowCreateThread, boolean allowHostClassLoading, boolean allowInnerContextOptions,
boolean allowExperimentalOptions, Predicate classFilter,
Map options, Map arguments, String[] onlyLanguages, IOAccess ioAccess, LogHandler logHandler, boolean allowCreateProcess,
ProcessHandler processHandler, EnvironmentAccess environmentAccess, Map environment, ZoneId zone, Object limitsImpl, String currentWorkingDirectory,
ClassLoader hostClassLoader, boolean allowValueSharing, boolean useSystemExit) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
PolyglotContextImpl context = receiver.createContext(sandboxPolicy, out, err, in, allowHostLookup, hostAccess, polyglotAccess,
allowNativeAccess, allowCreateThread, allowHostClassLoading,
allowInnerContextOptions,
allowExperimentalOptions,
classFilter, options, arguments, onlyLanguages, ioAccess, logHandler, allowCreateProcess, processHandler, environmentAccess, environment, zone, limitsImpl,
currentWorkingDirectory, hostClassLoader, allowValueSharing, useSystemExit);
return polyglot.getAPIAccess().newContext(polyglot.contextDispatch, context, context.engine.api);
}
@Override
public String getImplementationName(Object oreceiver) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return Truffle.getRuntime().getName();
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public Set getCachedSources(Object oreceiver) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.getCachedSources();
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public String getVersion(Object oreceiver) {
PolyglotEngineImpl receiver = (PolyglotEngineImpl) oreceiver;
try {
return receiver.getVersion();
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(receiver, t);
}
}
@Override
public ExecutionListener attachExecutionListener(Object engineReceiver, Consumer onEnter, Consumer onReturn, boolean expressions, boolean statements,
boolean roots,
Predicate sourceFilter, Predicate rootFilter, boolean collectInputValues, boolean collectReturnValues, boolean collectExceptions) {
PolyglotEngineImpl engine = (PolyglotEngineImpl) engineReceiver;
if (engine.sandboxPolicy.isStricterOrEqual(SandboxPolicy.CONSTRAINED)) {
throw PolyglotImpl.sandboxPolicyException(engine.sandboxPolicy, "ExecutionListener is attached to an Engine, but execution listeners are not allowed.",
"do not attach execution listeners to this engine");
}
Instrumenter instrumenter = (Instrumenter) EngineAccessor.INSTRUMENT.getEngineInstrumenter(engine.instrumentationHandler);
List> tags = new ArrayList<>();
if (expressions) {
tags.add(StandardTags.ExpressionTag.class);
}
if (statements) {
tags.add(StandardTags.StatementTag.class);
}
if (roots) {
tags.add(StandardTags.RootTag.class);
}
if (tags.isEmpty()) {
throw new IllegalArgumentException("No elements specified to listen to for execution listener. Need to specify at least one element kind: expressions, statements or roots.");
}
if (onReturn == null && onEnter == null) {
throw new IllegalArgumentException("At least one event consumer must be provided for onEnter or onReturn.");
}
SourceSectionFilter.Builder filterBuilder = SourceSectionFilter.newBuilder().tagIs(tags.toArray(new Class[0]));
filterBuilder.includeInternal(false);
PolyglotExecutionListenerDispatch.ListenerImpl config = new PolyglotExecutionListenerDispatch.ListenerImpl(polyglot.getExecutionEventDispatch(), engine,
onEnter, onReturn, collectInputValues, collectReturnValues, collectExceptions);
filterBuilder.sourceIs(new SourceSectionFilter.SourcePredicate() {
public boolean test(org.pkl.thirdparty.truffle.api.source.Source s) {
String language = s.getLanguage();
if (language == null) {
return false;
} else if (!engine.idToLanguage.containsKey(language)) {
return false;
} else if (sourceFilter != null) {
try {
return sourceFilter.test(PolyglotImpl.getOrCreatePolyglotSource(polyglot, s));
} catch (Throwable e) {
if (config.closing) {
// configuration is closing ignore errors.
return false;
}
throw engine.host.toHostException(null, e);
}
} else {
return true;
}
}
});
if (rootFilter != null) {
filterBuilder.rootNameIs(new Predicate() {
public boolean test(String s) {
try {
return rootFilter.test(s);
} catch (Throwable e) {
if (config.closing) {
// configuration is closing ignore errors.
return false;
}
throw engine.host.toHostException(null, e);
}
}
});
}
SourceSectionFilter filter = filterBuilder.build();
EventBinding binding;
try {
boolean mayNeedInputValues = config.collectInputValues && config.onReturn != null;
boolean mayNeedReturnValue = config.collectReturnValues && config.onReturn != null;
boolean mayNeedExceptions = config.collectExceptions;
if (mayNeedInputValues || mayNeedReturnValue || mayNeedExceptions) {
binding = instrumenter.attachExecutionEventFactory(filter, mayNeedInputValues ? filter : null, new ExecutionEventNodeFactory() {
public ExecutionEventNode create(EventContext context) {
return new PolyglotExecutionListenerDispatch.ProfilingNode(config, context);
}
});
} else {
// fast path no collection of additional profiles
binding = instrumenter.attachExecutionEventFactory(filter, null, new ExecutionEventNodeFactory() {
public ExecutionEventNode create(EventContext context) {
return new PolyglotExecutionListenerDispatch.DefaultNode(config, context);
}
});
}
} catch (Throwable t) {
throw PolyglotImpl.guestToHostException(engine, t);
}
config.binding = binding;
return polyglot.getManagement().newExecutionListener(polyglot.getExecutionListenerDispatch(), config);
}
@Override
public void shutdown(Object engine) {
((PolyglotEngineImpl) engine).onVMShutdown();
}
@Override
public RuntimeException hostToGuestException(Object engineReceiver, Throwable throwable) {
return PolyglotImpl.hostToGuestException((PolyglotEngineImpl) engineReceiver, throwable);
}
@Override
public SandboxPolicy getSandboxPolicy(Object engineReceiver) {
return ((PolyglotEngineImpl) engineReceiver).sandboxPolicy;
}
}
