- It is not possible to call a random function like that.
- For class and object functions (MyObject.Function) this can be done with RTTI, but it's a lot of work.
- If you just need to call one particular type of functions (say, function(integer, integer): string), it's a lot easier.
For the last one, declare a function type, then get a function pointer and cast it like this:
type
TMyFuncType = function(a: integer; b: integer): string of object;
TMyClass = class
published
function Func1(a: integer; b: integer): string;
function Func2(a: integer; b: integer): string;
function Func3(a: integer; b: integer): string;
public
function Call(MethodName: string; a, b: integer): string;
end;
function TMyClass.Call(MethodName: string; a, b: integer): string;
var m: TMethod;
begin
m.Code := Self.MethodAddress(MethodName); //find method code
m.Data := pointer(Self); //store pointer to object instance
Result := TMyFuncType(m)(a, b);
end;
{...}
//use it like this
var MyClass: TMyClass;
begin
MyClass := TMyClass.Create;
MyClass.Call('Func1', 3, 5);
MyClass.Call('Func2', 6, 4);
MyClass.Destroy;
end.
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