FuncDec class

Represents a function declaration in Balbismo.

A function declaration defines a named function with parameters, a return type, and a body. When evaluated, it generates the complete LLVM function definition including parameter handling, local variables, and the function body.

Example Balbismo code:

int add(int x, int y) {  // This is a FuncDec
  return x + y;
}

int main() {
  return add(5, 3);
}

This generates LLVM IR like:

define i64 @add(i64 %x, i64 %y) {
entry:
  %ptr.x.0 = alloca i64
  store i64 %x, ptr %ptr.x.0
  ; ... function body ...
  ret i64 %result
}