public void Eval_IdentifiersAndKeywordsCoexistIndependently()
{
_env.Bind(ClSymbol.And, Value.One);
var expr = BuiltIn.ListOf(ClSymbol.And, ClBool.True, Value.Foo);
Assert.That(ClSymbol.And.Reduce(_ctx).Value, Is.EqualTo(Value.One));
Assert.That(expr.Reduce(_ctx).Value, Is.EqualTo(Value.Foo));
}
public void EvalApplication_ThrowInvalidFunctionCall_WhenCarIsNotCallable()
{
_env.Bind(Var.Fn, Value.One);
var expr = BuiltIn.ListOf(Var.Fn, Value.One);
var errorMessage = $"{nameof(ClInt)} is neither callable nor special from";
Assert.That(() => expr.Reduce(_ctx),
Throws.Exception.TypeOf <SyntaxError>().With.Message.EqualTo(errorMessage));
}
public void EvalDefinition_CreateSharedReference()
{
_env.Bind(Var.Bar, Value.Bar);
var expr = BuiltIn.ListOf(ClSymbol.Define, Var.Foo, Var.Bar);
Ignore(expr.Reduce(_ctx));
Assert.That(Object.ReferenceEquals(_env.Lookup(Var.Foo), _env.Lookup(Var.Bar)), Is.True);
}
public async Task Run()
{
using (var socket = await _env.Bind(_port)) {
while (!_env.Token.IsCancellationRequested)
{
var conn = await socket.Accept();
HandleAsync(conn);
}
}
}
async Task EventLoop()
{
try {
using (var socket = await _env.Bind(_port)) {
while (!_env.Token.IsCancellationRequested)
{
var conn = await socket.Accept();
HandleRequest(conn);
}
}
} catch (TaskCanceledException) {
return;
}
}
public void EvalAssignment_SharedReference()
{
_env.Bind(Var.Foo, Value.Foo);
_env.Bind(Var.Bar, Value.Bar);
var expr = BuiltIn.ListOf(ClSymbol.Set, Var.Foo, Var.Bar);
var ctx = expr.Reduce(_ctx);
Assert.That(Object.ReferenceEquals(ctx.Env.Lookup(Var.Foo), _env.Lookup(Var.Bar)), Is.True);
}
public static Task <ISocket> Bind(this IEnv env, ushort port)
{
return(env.Bind(port, Timeout.InfiniteTimeSpan));
}