public override ExecuteResult Execute(Space space) {
if (_variableExpresison.GetExpressionType() != ExpressionType.Variable) {
ErrorLogger.LogRuntimeError(ErrorRuntimeCode.ExpressionDouble, "The expression isn't a type of variable!");
return ExecuteResult.Failed;
}
if (!IsSuccess(_variableExpresison.Execute(space))) {
ErrorLogger.LogRuntimeError(ErrorRuntimeCode.ExpressionDouble, "The expression execute failed!");
return ExecuteResult.Failed;
}
var variable = (_variableExpresison as SentenceExpressionVariable).variable;
var value = _variableExpresison.value;
if (!ValueTool.IsNumber(value)) {
ErrorLogger.LogRuntimeError(ErrorRuntimeCode.ExpressionDouble, "The value of variable isn't a type of 'number'!");
return ExecuteResult.Failed;
}
var ret = _calculate.Calculate(value, new ValueNumber(1));
if (!ret) {
ErrorLogger.LogRuntimeError(ErrorRuntimeCode.ExpressionDouble, "The calculate is failed!");
return ExecuteResult.Failed;
}
if (!variable.SetValue(ret)) {
ErrorLogger.LogRuntimeError(ErrorRuntimeCode.ExpressionDouble, "The variable set value failed!");
return ExecuteResult.Failed;
}
SetValue(_bLast ? value : ret);
return ExecuteResult.Successed;
}
private BuiltInFunction()
{
Action <string, int, Func <List <Value>, Space, Value> > _Emplace = (string name, int paramSize, Func <List <Value>, Space, Value> func) => {
var value = new ValueFunction(paramSize, func);
var variable = new Variable(name, VariableAttribute.Const, value);
variables.Add(name, variable);
};
// print
_Emplace.Invoke("print", 1, (List <Value> args, Space s) => {
string ret = "";
foreach (var arg in args)
{
ret += ValueTool.ToString(arg);
}
System0.Echo(ret);
return(ValueNull.DEFAULT_VALUE);
});
// type
_Emplace("type", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
return(new ValueString(ValueTool.ToTypeString(args[0])));
});
// is_null
_Emplace("is_null", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsNull(arg);
}
return(new ValueBool(ret));
});
// is_number
_Emplace("is_number", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsNumber(arg);
}
return(new ValueBool(ret));
});
// is_bool
_Emplace("is_bool", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsBool(arg);
}
return(new ValueBool(ret));
});
// is_string
_Emplace("is_string", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsString(arg);
}
return(new ValueBool(ret));
});
// is_array
_Emplace("is_array", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsArray(arg);
}
return(new ValueBool(ret));
});
// is_function
_Emplace("is_function", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsFunction(arg);
}
return(new ValueBool(ret));
});
// is_object
_Emplace("is_object", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
bool ret = true;
foreach (var arg in args)
{
ret &= ValueTool.IsObject(arg);
}
return(new ValueBool(ret));
});
// len
_Emplace("len", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
var value = args[0];
if (ValueTool.IsArray(value))
{
return(new ValueNumber((double)(value as ValueArray).value.Count));
}
else if (ValueTool.IsString(value))
{
return(new ValueNumber((double)(value as ValueString).value.Length));
}
return(ValueNull.DEFAULT_VALUE);
});
// to_string
_Emplace("to_string", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
var value = args[0];
return(new ValueString(ValueTool.ToString(value)));
});
// to_number
_Emplace("to_number", 1, (List <Value> args, Space s) => {
if (args.Count == 0)
{
return(null);
}
var value = args[0];
if (!ValueTool.IsString(value))
{
return(null);
}
double ret = 0;
if (!double.TryParse((value as ValueString).value, out ret))
{
ret = 0;
}
return(new ValueNumber(ret));
});
}