internal JukaEnvironment Ancestor(int distance)
{
JukaEnvironment environment = this;
for (int i = 0; i < distance; i++)
{
environment = environment.enclosing;
}
return(environment);
}
internal void ExecuteBlock(List <Stmt> statements, JukaEnvironment environment)
{
JukaEnvironment previous = this.environment;
try
{
this.environment = environment;
foreach (Stmt statement in statements)
{
Execute(statement);
}
}
finally
{
this.environment = previous;
}
}
internal JukaInterpreter(ServiceProvider services)
{
environment = globals = new JukaEnvironment();
this.serviceProvider = services;
if (serviceProvider != null)
{
#pragma warning disable CS8604 // Possible null reference argument.
globals.Define("clock", serviceProvider.GetService <ISystemClock>());
globals.Define("fileOpen", services.GetService <IFileOpen>());
#pragma warning restore CS8604 // Possible null reference argument.
}
else
{
throw new JRuntimeException("Unable to load system calls");
}
}
internal JukaFunction(Stmt.Function declaration, JukaEnvironment closure, bool isInitializer)
{
this.isInitializer = isInitializer;
this.declaration = declaration;
this.closure = closure;
}
internal JukaEnvironment(JukaEnvironment enclosing)
{
this.enclosing = enclosing;
}