private static IObject EvalHashLiteral(Ast.HashLiteral node, Environment env)
{
var pairs = new Dictionary <HashKey, HashPair>();
foreach (var pair in node.Pairs)
{
var key = Eval(pair.Key, env);
if (IsError(key))
{
return(key);
}
if (!(key is IHashable hashKey))
{
return new Error {
Message = $"unusable as hash key: {key.getType()}"
}
}
;
var value = Eval(pair.Value, env);
if (IsError(value))
{
return(value);
}
var hashed = hashKey.HashKey();
pairs[hashed] = new HashPair {
Key = key, Value = value
};
}
return(new Hash {
Pairs = pairs
});
}
}
private static IMonkeyObject EvalHashLiteral(HashLiteral node, MonkeyEnvironment env)
{
var pairs = new Dictionary <HashKey, HashPair>();
foreach (var kv in node.Pairs)
{
var key = Eval(kv.Key, env);
if (IsError(key))
{
return(key);
}
if (key is IHashable k)
{
var value = Eval(kv.Value, env);
if (IsError(value))
{
return(value);
}
var hashKey = k.HashKey();
var hashPair = new HashPair {
Key = key, Value = value
};
pairs.Add(hashKey, hashPair);
}
else
{
return(NewError($"Unusable as hash key: {key.GetType()}"));
}
}
return(new MonkeyHash {
Pairs = pairs
});
}