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package com.oracle.truffle.sl.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Before;
import org.junit.Test;
import com.oracle.truffle.api.CallTarget;
import com.oracle.truffle.api.Truffle;
import com.oracle.truffle.api.TruffleLanguage;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.TruffleLanguage.Env;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.RootNode;
import com.oracle.truffle.api.source.Source;
import com.oracle.truffle.api.vm.PolyglotEngine;
public class SLParseInContextTest {
private PolyglotEngine vm;
@Before
public void prepareMethods() throws Exception {
vm = PolyglotEngine.newBuilder().build();
}
@Test
public void parseAPlusB() throws Exception {
PolyglotEngine.Value value = vm.eval(Source.newBuilder("").name("eval.eval").mimeType("application/x-test-eval").build());
Object fourtyTwo = value.get();
assertTrue("Result is a number: " + fourtyTwo, fourtyTwo instanceof Number);
assertEquals(42, ((Number) fourtyTwo).intValue());
}
@TruffleLanguage.Registration(mimeType = "application/x-test-eval", name = "EvalLang", version = "1.0")
public static final class EvalLang extends TruffleLanguage<Env> {
@Override
protected Env createContext(Env env) {
return env;
}
@Override
protected Object findExportedSymbol(Env context, String globalName, boolean onlyExplicit) {
return null;
}
@Override
protected Object getLanguageGlobal(Env context) {
return null;
}
@Override
protected boolean isObjectOfLanguage(Object object) {
return false;
}
@Override
protected CallTarget parse(ParsingRequest request) throws Exception {
return Truffle.getRuntime().createCallTarget(new RootNode(this) {
@Override
public Object execute(VirtualFrame frame) {
return parseAndEval();
}
@TruffleBoundary
private Object parseAndEval() {
Source aPlusB = Source.newBuilder("a + b").mimeType("application/x-sl").name("plus.sl").build();
return getContextReference().get().parse(aPlusB, "a", "b").call(30, 12);
}
});
}
}
}