Debugger-onNativeCall-05.js

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// Test that the onNativeCall hook cannot return a primitive value.

var g = newGlobal({newCompartment: true});

var dbg = Debugger(g);

var gdbg = dbg.addDebuggee(g);

// Returning the callee accidentally is a common mistake when implementing C++

// methods, but the debugger should not trip any checks if it does this on

// purpose.

dbg.onNativeCall = (callee, reason) => {

    return {return: callee};

};

v = gdbg.executeInGlobal("new Object")

assertEq(v.return, gdbg.makeDebuggeeValue(g.Object));

// Returning a primitive should cause the hook to throw.

dbg.onNativeCall = (callee, reason) => {

    return {return: "primitive"};

};

v = gdbg.executeInGlobal("new Object")

assertEq(v.throw.proto, gdbg.makeDebuggeeValue(g.Error.prototype))

// A no-op hook shouldn't break any checks.

dbg.onNativeCall = (callee, reason) => { };

v = gdbg.executeInGlobal("new Object")

assertEq("return" in v, true);