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package com.oracle.truffle.js.test.instrumentation;
import org.junit.Test;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.LiteralTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.ReadPropertyTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.UnaryOperationTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.WritePropertyTag;
public class DeleteOperatorTest extends FineGrainedAccessTest {
@Test
public void delete() {
evalAllTags("var a = {x:42}; delete a.x;");
// var a = {x:42}
enter(WritePropertyTag.class, (e, p) -> {
assertAttribute(e, KEY, "a");
p.input(assertGlobalObjectInput);
enter(LiteralTag.class, (e1, p1) -> {
enter(LiteralTag.class).exit(assertReturnValue(42));
p1.input(42);
}).exit();
p.input(assertJSObjectInput);
}).exit();
// delete a.x
enter(UnaryOperationTag.class, (e, p) -> {
assertAttribute(e, OPERATOR, "delete");
enter(ReadPropertyTag.class, (e1, p1) -> {
p1.input(assertGlobalObjectInput);
}).exit();
// target
p.input(assertJSObjectInput);
enter(LiteralTag.class).exit(assertReturnValue("x"));
p.input("x");
}).exit(assertReturnValue(true));
}
@Test
public void deleteGlobal() {
evalAllTags("a = 'foo'; delete a;");
// a = 'foo'
enter(WritePropertyTag.class, (e, p) -> {
assertAttribute(e, KEY, "a");
p.input(assertGlobalObjectInput);
enter(LiteralTag.class).exit(assertReturnValue("foo"));
p.input("foo");
}).exit();
// delete a
enter(UnaryOperationTag.class, (e, p) -> {
assertAttribute(e, OPERATOR, "delete");
p.input(assertGlobalObjectInput);
enter(LiteralTag.class).exit(assertReturnValue("a"));
p.input("a");
}).exit(assertReturnValue(true));
}
}