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package com.oracle.truffle.js.test.instrumentation;
import org.junit.Test;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.BuiltinRootTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.FunctionCallTag;
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.ReadVariableTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.WritePropertyTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.WriteVariableTag;
import com.oracle.truffle.js.runtime.objects.Undefined;
public class BuiltinOperationTest extends FineGrainedAccessTest {
@Test
public void mathRandom() {
evalAllTags("var a = Math.random; a();");
// var a = Math.random
enter(WritePropertyTag.class, (e, write) -> {
assertAttribute(e, KEY, "a");
write.input(assertGlobalObjectInput);
enter(ReadPropertyTag.class, (e1, read) -> {
assertAttribute(e1, KEY, "random");
enter(ReadPropertyTag.class, (e2, prop) -> {
assertAttribute(e2, KEY, "Math");
prop.input(assertGlobalObjectInput);
}).exit();
read.input(assertJSObjectInput);
}).exit();
write.input(assertJSFunctionInput);
}).exit();
// a()
enter(FunctionCallTag.class, (e, call) -> {
// read target for 'a' (which is undefined)
enter(LiteralTag.class).exit(assertReturnValue(Undefined.instance));
call.input(assertUndefinedInput);
// read function 'a'
enter(ReadPropertyTag.class, assertPropertyReadName("a")).input().exit();
call.input(assertJSFunctionInput);
enter(BuiltinRootTag.class, (e2) -> {
assertAttribute(e2, NAME, "Math.random");
}).exit();
}).exit();
}
@Test
public void objectDefineProp() {
evalAllTags("const foo = {};" +
"Object.defineProperty(foo, 'bar', {" +
" value: 42" +
"});");
// const foo = {}
enter(WriteVariableTag.class, (e, w) -> {
assertAttribute(e, NAME, "foo");
enter(LiteralTag.class).exit();
w.input(assertJSObjectInput);
}).exit();
// call to 'defineProperty'
enter(FunctionCallTag.class, (e, f) -> {
// target
enter(ReadPropertyTag.class, assertPropertyReadName("Object")).input(assertJSObjectInput).exit();
f.input(assertJSFunctionInput);
// function
enter(ReadPropertyTag.class, assertPropertyReadName("defineProperty")).input().exit();
f.input(assertJSFunctionInput);
// 1st argument is the 'foo' variable
enter(ReadVariableTag.class, assertVarReadName("foo")).exit();
f.input(assertJSObjectInput);
// 2nd argument is the 'bar' literal
enter(LiteralTag.class).exit(assertReturnValue("bar"));
f.input("bar");
// create the object literal...
enter(LiteralTag.class, (e1, l) -> {
enter(LiteralTag.class).exit(assertReturnValue(42));
l.input(42);
}).exit();
// ...use it as argument
f.input(assertJSObjectInput);
// detect this is a builtin call
enter(BuiltinRootTag.class, (b) -> {
assertAttribute(b, NAME, "Object.defineProperty");
}).exit();
}).exit();
}
}