
haftmann@24999: (*  Title:      HOL/Library/Code_Integer.thy
haftmann@24999:     ID:         $Id$
haftmann@24999:     Author:     Florian Haftmann, TU Muenchen
haftmann@24999: *)
haftmann@24999: 
haftmann@24999: header {* Pretty integer literals for code generation *}
haftmann@24999: 
haftmann@24999: theory Code_Integer
haftmann@27368: imports Plain Presburger
haftmann@24999: begin
haftmann@24999: 
haftmann@24999: text {*
haftmann@24999:   HOL numeral expressions are mapped to integer literals
haftmann@24999:   in target languages, using predefined target language
haftmann@24999:   operations for abstract integer operations.
haftmann@24999: *}
haftmann@24999: 
haftmann@24999: code_type int
haftmann@24999:   (SML "IntInf.int")
haftmann@24999:   (OCaml "Big'_int.big'_int")
haftmann@24999:   (Haskell "Integer")
haftmann@24999: 
haftmann@24999: code_instance int :: eq
haftmann@24999:   (Haskell -)
haftmann@24999: 
haftmann@24999: setup {*
haftmann@25928:   fold (Numeral.add_code @{const_name number_int_inst.number_of_int}
haftmann@25928:     true true) ["SML", "OCaml", "Haskell"]
haftmann@24999: *}
haftmann@24999: 
huffman@26086: code_const "Int.Pls" and "Int.Min" and "Int.Bit0" and "Int.Bit1"
haftmann@24999:   (SML "raise/ Fail/ \"Pls\""
haftmann@24999:      and "raise/ Fail/ \"Min\""
huffman@26086:      and "!((_);/ raise/ Fail/ \"Bit0\")"
huffman@26086:      and "!((_);/ raise/ Fail/ \"Bit1\")")
haftmann@24999:   (OCaml "failwith/ \"Pls\""
haftmann@24999:      and "failwith/ \"Min\""
huffman@26086:      and "!((_);/ failwith/ \"Bit0\")"
huffman@26086:      and "!((_);/ failwith/ \"Bit1\")")
haftmann@24999:   (Haskell "error/ \"Pls\""
haftmann@24999:      and "error/ \"Min\""
huffman@26086:      and "error/ \"Bit0\""
huffman@26086:      and "error/ \"Bit1\"")
haftmann@24999: 
haftmann@25919: code_const Int.pred
haftmann@24999:   (SML "IntInf.- ((_), 1)")
haftmann@24999:   (OCaml "Big'_int.pred'_big'_int")
haftmann@24999:   (Haskell "!(_/ -/ 1)")
haftmann@24999: 
haftmann@25919: code_const Int.succ
haftmann@24999:   (SML "IntInf.+ ((_), 1)")
haftmann@24999:   (OCaml "Big'_int.succ'_big'_int")
haftmann@24999:   (Haskell "!(_/ +/ 1)")
haftmann@24999: 
haftmann@24999: code_const "op + \<Colon> int \<Rightarrow> int \<Rightarrow> int"
haftmann@24999:   (SML "IntInf.+ ((_), (_))")
haftmann@24999:   (OCaml "Big'_int.add'_big'_int")
haftmann@24999:   (Haskell infixl 6 "+")
haftmann@24999: 
haftmann@24999: code_const "uminus \<Colon> int \<Rightarrow> int"
haftmann@24999:   (SML "IntInf.~")
haftmann@24999:   (OCaml "Big'_int.minus'_big'_int")
haftmann@24999:   (Haskell "negate")
haftmann@24999: 
haftmann@24999: code_const "op - \<Colon> int \<Rightarrow> int \<Rightarrow> int"
haftmann@24999:   (SML "IntInf.- ((_), (_))")
haftmann@24999:   (OCaml "Big'_int.sub'_big'_int")
haftmann@24999:   (Haskell infixl 6 "-")
haftmann@24999: 
haftmann@24999: code_const "op * \<Colon> int \<Rightarrow> int \<Rightarrow> int"
haftmann@24999:   (SML "IntInf.* ((_), (_))")
haftmann@24999:   (OCaml "Big'_int.mult'_big'_int")
haftmann@24999:   (Haskell infixl 7 "*")
haftmann@24999: 
haftmann@24999: code_const "op = \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
haftmann@24999:   (SML "!((_ : IntInf.int) = _)")
haftmann@24999:   (OCaml "Big'_int.eq'_big'_int")
haftmann@24999:   (Haskell infixl 4 "==")
haftmann@24999: 
haftmann@24999: code_const "op \<le> \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
haftmann@24999:   (SML "IntInf.<= ((_), (_))")
haftmann@24999:   (OCaml "Big'_int.le'_big'_int")
haftmann@24999:   (Haskell infix 4 "<=")
haftmann@24999: 
haftmann@24999: code_const "op < \<Colon> int \<Rightarrow> int \<Rightarrow> bool"
haftmann@24999:   (SML "IntInf.< ((_), (_))")
haftmann@24999:   (OCaml "Big'_int.lt'_big'_int")
haftmann@24999:   (Haskell infix 4 "<")
haftmann@24999: 
haftmann@24999: code_reserved SML IntInf
haftmann@24999: code_reserved OCaml Big_int
haftmann@24999: 
haftmann@24999: end



