public State()
{
_stack = new Stack<Step>();
_prevStep = null;
_resultStack = new Stack<object>();
_constScope = new ConstScope( null );
_lookupScope = new LookupScope( _constScope );
_rootScope = new StandardScope( _lookupScope );
_baggage = new StandardScope();
}
public void ConstScope()
{
string program = @"
a = testconst
b = """"
try:
testconst = 5
except exc:
b = exc
";
Runner r = new Runner();
ConstScope scope = new ConstScope( r.state.scope );
scope.setConstant( "testconst", 10 );
r.pushScope( scope );
runAndDump( "ConstScope", r, program, null );
}
public static void RegisterObject( ConstScope scope )
{
var pt = new Passthrough( new MathObject() );
pt.registerConst( scope, "math" );
}
public object callMethod( State state, string name, object[] args )
{
if( name == "test2" )
return "test worked " + String.Join( ",", args.Select( x => x.ToStringI() ).ToArray() );
else if( name == "dumpcontext" )
{
var cxt = state.securityContext;
return "Current context: " + ( cxt == null ? "none" : cxt.name );
}
else if( name == "complex" )
{
int which = (int)args[0];
if( which == 1 )
{
return new AsyncAction()
{
action = AsyncAction.Action.Call,
function = (FValue)args[1],
args = new object[] { "added\r\n" },
frame = new StackTrace.StackFrame()
{
line = 0,
col = 0,
unitName = "test",
funcName = "PtTest.{0}".FormatI( name )
}
};
}
else if( which == 2 )
{
return new AsyncAction[]
{
new AsyncAction()
{
action = AsyncAction.Action.Variable,
name = "shouldexist",
value = "oh cool"
},
new AsyncAction()
{
action = AsyncAction.Action.Callback,
callback = st =>
{
var rv = "{0}".FormatI( st.scope.get( "shouldexist" ) );
st.pushResult( rv );
}
}
};
}
else if( which == 3 )
{
var constscope = new ConstScope( state.scope );
constscope.setConstant( "testconst", "bob" );
return new AsyncAction[]
{
new AsyncAction()
{
action = AsyncAction.Action.Code,
code = Compiler.Compile( "test", @"
def innerfunc(x):
return [x + 1, testconst]
" )
},
new AsyncAction()
{
action = AsyncAction.Action.Call,
name = "innerfunc",
args = new object[] { 5 },
frame = new StackTrace.StackFrame()
{
line = 0,
col = 0,
unitName = "test",
funcName = "PtTest.{0}".FormatI( name )
}
},
new AsyncAction()
{
action = AsyncAction.Action.PushScope,
scope = constscope
}
};
}
else if( which == 4 )
{
return new AsyncAction[]
{
new AsyncAction()
{
action = AsyncAction.Action.Code,
code = Compiler.Compile( "test", @"
def innerfunc(pt):
return pt.dumpcontext()
" )
},
new AsyncAction()
{
action = AsyncAction.Action.Call,
name = "innerfunc",
args = new object[] { this },
frame = new StackTrace.StackFrame()
},
new AsyncAction()
{
action = AsyncAction.Action.PushSecurityContext,
securityContext = new TestSC( "Context 1" )
}
};
}
else if( which == 5 )
{
return new AsyncAction[]
{
new AsyncAction()
{
action = AsyncAction.Action.Code,
code = Compiler.Compile( "test", @"
def innerfunc(pt):
return pt.dumpcontext()
" )
},
new AsyncAction()
{
action = AsyncAction.Action.Call,
name = "innerfunc",
args = new object[] { this },
frame = new StackTrace.StackFrame()
}
};
}
else /* if( which == 6 ) */
{
throw new ArgumentException( "No idea what you're talking about!" );
}
}
else
return null;
}
/// <summary>
/// Registers the string object in the const scope.
/// </summary>
/// <remarks>
/// This could probably be factored out into a helper class.
/// </remarks>
public static void RegisterObject( ConstScope scope )
{
scope.setConstant( "string",
new MetalObject()
{
indexLookup = (state, idx) =>
{
throw CoralException.GetArg( "Can't index the string object" );
},
memberLookup = (state, name) =>
{
state.pushResult( new LValue()
{
read = st => {
if( name == "join" )
{
return new FValue( (st2,args) => MethodJoin( st2, args ) );
}
else
{
throw CoralException.GetArg( "Unknown method on string object" );
}
},
write = (st,val) => { throw CoralException.GetInvOp( "Can't write to the string object" ); }
} );
}
}
);
}
