public static SprakBoolean IsKeyPressed(
ExecutionContext context, SprakString key)
{
bool result = context.Computer?.Screen.IsKeyPressed(key.Value) ?? false;
return(SprakBoolean.From(result));
}
// H
public static SprakBoolean HasFunction(ExecutionContext context,
SprakString name)
{
bool exists = context.SignatureResolver
.FindFunctions(name.Value)
.Any();
return(SprakBoolean.From(exists));
}
public override void Execute(ExecutionContext context)
{
// Remember, latest first on a stack
SprakNumber second = context.Memory.PopValue <SprakNumber>();
SprakNumber first = context.Memory.PopValue <SprakNumber>();
SprakBoolean result = SprakBoolean.From(first.Value > second.Value);
context.Memory.PushValue(result);
}
public override void Execute(ExecutionContext context)
{
SprakBoolean condition = context.Memory.PopValue <SprakBoolean>();
if (!condition.Value)
{
context.Instructions.Jump(LabelName);
}
else
{
context.Instructions.Step();
}
}
public LiteralGet(Token token) : base(token)
{
switch (Token.Type)
{
case TokenType.Boolean:
if (bool.TryParse(token.Content, out bool boolean))
{
Value = SprakBoolean.From(boolean);
}
else
{
throw new TokenCheckException(token, $"Unable to parse boolean from {token}");
}
break;
case TokenType.Number:
if (double.TryParse(token.Content, out double number))
{
Value = new SprakNumber(number);
}
else
{
throw new TokenCheckException(token, $"Unable to parse number from {token}");
}
break;
case TokenType.String:
Value = new SprakString(token.Content);
break;
default: throw new TokenCheckException(
token, $"Unsupported token for {nameof(LiteralGet)}: {token}");
}
token.ExpressionHint = this;
}
public static SprakBoolean NotEqual(SprakString left, SprakString right)
{
return(SprakBoolean.From(left != right));
}
public static SprakBoolean And(SprakBoolean left, SprakBoolean right)
{
return(SprakBoolean.From(left.Value && right.Value));
}
public static SprakBoolean Not(SprakBoolean right)
{
return(SprakBoolean.From(!right.Value));
}
public static SprakBoolean GreaterThanOrEquals(SprakNumber left, SprakNumber right)
{
return(SprakBoolean.From(left.Value >= right.Value));
}
public static SprakBoolean LessThanOrEquals(SprakNumber left, SprakNumber right)
{
return(SprakBoolean.From(left.Value <= right.Value));
}
public static SprakBoolean NotEqual(SprakConnection left, SprakConnection right)
{
return(SprakBoolean.From(left.ConnectionString != right.ConnectionString));
}
public static SprakBoolean NotEqual(Value left, Value right)
{
return(SprakBoolean.From(left != right));
}
public static SprakBoolean NotEqual(SprakArray left, SprakArray right)
{
return(SprakBoolean.From(left != right));
}
public static SprakBoolean Or(SprakBoolean left, SprakBoolean right)
{
return(SprakBoolean.From(left.Value || right.Value));
}
public static SprakBoolean NotEqual(SprakNumber left, SprakNumber right)
{
return(SprakBoolean.From(left != right));
}
public static SprakBoolean Equal(SprakConnection left, SprakConnection right)
{
return(SprakBoolean.From(left == right));
}
public static SprakBoolean Equal(SprakBoolean left, SprakBoolean right)
{
return(SprakBoolean.From(left.Value == right.Value));
}
