val build_builtin_fn_code :
  Code_selection_context.code_selection_context ->
  Algebra_type.algop_expr ->
  (Xquery_common_ast.cfname * int) *
  Xquery_algebra_ast.asequencetype option array *
  Xquery_algebra_ast.asequencetype ->
  Algebra_type.alg_eval_code_dep *
  Code_selection_context.code_selection_context
val build_convert_simple_code :
  Code_selection_context.code_selection_context ->
  Algebra_type.algop_expr ->
  Datatypes.atomic_type ->
  Algebra_type.alg_eval_code_dep *
  Code_selection_context.code_selection_context
val build_promote_numeric_code :
  Code_selection_context.code_selection_context ->
  Algebra_type.algop_expr ->
  Datatypes.atomic_type ->
  Algebra_type.alg_eval_code_dep *
  Code_selection_context.code_selection_context
val build_promote_anystring_code :
  Code_selection_context.code_selection_context ->
  Algebra_type.algop_expr ->
  Algebra_type.alg_eval_code_dep *
  Code_selection_context.code_selection_context
val build_unsafe_promote_numeric_code :
  Code_selection_context.code_selection_context ->
  Algebra_type.algop_expr ->
  Datatypes.atomic_type ->
  Algebra_type.alg_eval_code_dep *
  Code_selection_context.code_selection_context
val select_physical_op :
  Code_selection_context.code_selection_context ->
  Xquery_algebra_ast.input_signature ->
  Algebra_type.algop_expr ->
  (Xquery_common_ast.cfname * int) *
  Xquery_algebra_ast.asequencetype option array *
  Xquery_algebra_ast.asequencetype ->
  Xquery_physical_algebra_ast.physop_expr_name