public void executeBlock(IList <Stmt> statements, RosellaEnvironment environment)
{
var previous = this.environment;
try
{
this.environment = environment;
foreach (var statement in statements)
{
execute(statement);
}
}
finally
{
this.environment = previous;
}
}
public object call(Interpreter interpreter, IList <object> arguments)
{
var environment = new RosellaEnvironment(closure);
for (var i = 0; i < [email protected]; i++)
{
environment.define(declaration.@params[i].lexeme, arguments[i]);
}
try
{
interpreter.executeBlock(declaration.body, environment);
}
catch (Return returnValue)
{
return(returnValue.value);
}
return(null);
}
public Interpreter(Action <RuntimeError> errorFunc)
{
this.errorFunc = errorFunc;
environment = globals;
globals.define("clock", new Clock());
}
public RosellaFunction(Stmt.Function declaration, RosellaEnvironment closure)
{
this.declaration = declaration;
this.closure = closure;
}
public RosellaEnvironment(RosellaEnvironment enclosing = null)
{
this.enclosing = enclosing;
}