Source-to-source code translation from Haskell using AI involves utilizing natural language processing (NLP) techniques and machine learning algorithms to analyze and understand source code
| Translation Problem | Score (1-10) |
|---|---|
| Type System Differences | 9 |
| Lazy Evaluation vs. Eager Evaluation | 8 |
| Higher-Order Functions | 7 |
| Pattern Matching | 6 |
| Monads and Effects | 8 |
| Type Classes and Interfaces | 7 |
| List Comprehensions | 5 |
| Algebraic Data Types | 9 |
Haskell has a strong, static type system with features like type inference, type classes, and algebraic data types. Delphi, while also statically typed, has a more traditional object-oriented type system. This can lead to challenges when translating complex type constructs.
Example: Haskell:
data Maybe a = Nothing | Just a
Delphi:
type
TMaybe<T> = class
private
FValue: T;
FHasValue: Boolean;
public
constructor Create(AValue: T);
class function Nothing: TMaybe<T>;
end;
References:
Haskell employs lazy evaluation, meaning expressions are not evaluated until their values are needed. Delphi uses eager evaluation, which can lead to performance differences and requires careful consideration when translating code.
Example: Haskell:
take 5 (repeat 1) -- Produces [1, 1, 1, 1, 1]
Delphi:
function TakeFive: TArray<Integer>;
var
I: Integer;
begin
SetLength(Result, 5);
for I := 0 to 4 do
Result[I] := 1; // Eagerly evaluates
end;
References:
Haskell's support for higher-order functions allows functions to be passed as arguments or returned as values. Delphi supports anonymous methods, but the syntax and usage can differ significantly.
Example: Haskell:
applyTwice f x = f (f x)
Delphi:
function ApplyTwice(AProc: TProc<Integer>; AValue: Integer): Integer;
begin
AProc(AValue);
AProc(AValue);
end;
References:
Haskell's pattern matching is a powerful feature that allows for concise and expressive code. Delphi lacks direct support for pattern matching, requiring more verbose conditional statements.
Example: Haskell:
case x of
0 -> "Zero"
_ -> "Non-zero"
Delphi:
case x of
0: Result := 'Zero';
else
Result := 'Non-zero';
end;
References:
Haskell's monads provide a way to handle side effects in a pure functional way. Delphi does not have a built-in concept of monads, making it challenging to translate Haskell code that relies on them.
Example: Haskell:
import Control.Monad
main = do
x <- return 5
print x
Delphi:
procedure Main;
var
x: Integer;
begin
x := 5; // No monadic context
WriteLn(x);
end;
References:
Haskell's type classes allow for ad-hoc polymorphism, while Delphi uses interfaces for similar functionality. The translation can be complex due to differences in syntax and semantics.
Example: Haskell:
class Show a where
show :: a -> String
Delphi:
type
IShow = interface
function Show: string;
end;
References:
Haskell's list comprehensions provide a concise way to create lists. Delphi lacks this feature, requiring more verbose loops or functional constructs.
Example: Haskell:
[x * 2 | x <- [1..10]]
Delphi:
var
I: Integer;
Result: TArray<Integer>;
begin
SetLength(Result, 10);
for I := 0 to 9 do
Result[I] := (I + 1) * 2;
end;
References:
Haskell's algebraic data types allow for the creation of complex data structures. Delphi's record and class systems can achieve similar functionality, but the syntax and usage differ.
Example: Haskell:
data Shape = Circle Float | Rectangle Float Float
Delphi:
type
TShape = (stCircle, stRectangle);
TCircle = record
Radius: Float;
end;
TRectangle = record
Width, Height: Float;
end;
References: