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package com.oracle.truffle.js.test.instrumentation;

import org.junit.Test;

import com.oracle.truffle.js.nodes.instrumentation.JSTags.FunctionCallTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.ObjectAllocationTag;

public class YieldTest extends FineGrainedAccessTest {

    @Test
    public void yieldAsArgumentNew() {
        evalWithTag("class Noop {" +
                        "  constructor(obj) {" +
                        "    this.obj = obj;" +
                        "  }" +
                        "};" +
                        "function* boom() {" +
                        "  return new Noop(yield);" +
                        "};" +
                        "a = boom();" +
                        "a.next();" +
                        "a.next(42);", ObjectAllocationTag.class);

        enter(ObjectAllocationTag.class, (e, call) -> {
            call.input(assertJSFunctionInputWithName("Noop"));
            call.input(42);
        }).exit();
    }

    @Test
    public void yieldAsArgumentCall() {
        evalWithTag("function Noop(obj) {" +
                        "};" +
                        "function* boom() {" +
                        "  return Noop(yield);" +
                        "};" +
                        "a = boom();" +
                        "a.next();" +
                        "a.next(42);", FunctionCallTag.class);

        enter(FunctionCallTag.class, (e, call) -> {
            call.input(assertUndefinedInput);
            call.input(assertJSFunctionInputWithName("boom"));
        }).exit();
        enter(FunctionCallTag.class, (e, call) -> {
            call.input(assertJSObjectInput);
            call.input(assertJSFunctionInputWithName("next"));
        }).exit();

        enter(FunctionCallTag.class, (e, call) -> {
            call.input(assertJSObjectInput);
            call.input(assertJSFunctionInputWithName("next"));
            call.input(42);

            enter(FunctionCallTag.class, (e1, call1) -> {
                call.input(assertUndefinedInput);
                call.input(assertJSFunctionInputWithName("Noop"));
                call.input(42);

            }).exit();
        }).exit();
    }

    @Test
    public void yieldAsArgumentInvoke() {
        evalWithTag("const Noop = { fun : function(obj) {}};" +
                        "function* boom() {" +
                        "  return Noop.fun(yield);" +
                        "};" +
                        "a = boom();" +
                        "a.next();" +
                        "a.next(42);", FunctionCallTag.class);

        enter(FunctionCallTag.class, (e, call) -> {
            call.input(assertUndefinedInput);
            call.input(assertJSFunctionInputWithName("boom"));
        }).exit();
        enter(FunctionCallTag.class, (e, call) -> {
            call.input(assertJSObjectInput);
            call.input(assertJSFunctionInputWithName("next"));
        }).exit();

        enter(FunctionCallTag.class, (e, call) -> {
            call.input(assertJSObjectInput);
            call.input(assertJSFunctionInputWithName("next"));
            call.input(42);

            enter(FunctionCallTag.class, (e1, call1) -> {
                call.input(assertJSObjectInput);
                call.input(assertJSFunctionInputWithName("fun"));
                call.input(42);
            }).exit();
        }).exit();
    }

}