mirror of
https://github.com/Mercury-Language/mercury.git
synced 2025-12-11 11:53:51 +00:00
d465fa53cb
Discussion of these changes can be found on the Mercury developers
mailing list archives from June 2018.
COPYING.LIB:
Add a special linking exception to the LGPL.
*:
Update references to COPYING.LIB.
Clean up some minor errors that have accumulated in copyright
messages.
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
// vim: ts=4 sw=4 expandtab ft=c
|
|
|
|
// Copyright (C) 2002, 2005, 2007 The University of Melbourne.
|
|
// Copyright (C) 2016, 2018 The Mercury team.
|
|
// This file is distributed under the terms specified in COPYING.LIB.
|
|
|
|
// mercury_construct.h
|
|
//
|
|
// This module provides utility functions for constructing terms, for use by
|
|
// the standard library.
|
|
|
|
#ifndef MERCURY_CONSTRUCT_H
|
|
#define MERCURY_CONSTRUCT_H
|
|
|
|
#include "mercury_types.h"
|
|
#include "mercury_type_info.h"
|
|
#include "mercury_stack_layout.h"
|
|
|
|
union MR_Construct_Functor_Union {
|
|
const MR_EnumFunctorDesc *enum_functor_desc;
|
|
const MR_ForeignEnumFunctorDesc *foreign_enum_functor_desc;
|
|
const MR_NotagFunctorDesc *notag_functor_desc;
|
|
const MR_DuFunctorDesc *du_functor_desc;
|
|
};
|
|
|
|
typedef struct MR_Construct_Info_Struct {
|
|
MR_ConstString functor_name;
|
|
MR_Integer arity;
|
|
const MR_PseudoTypeInfo *arg_pseudo_type_infos;
|
|
const MR_ConstString *arg_names;
|
|
MR_TypeCtorRep type_ctor_rep;
|
|
union MR_Construct_Functor_Union functor_info;
|
|
} MR_Construct_Info;
|
|
|
|
// MR_get_num_functors:
|
|
//
|
|
// Get the number of functors for a type. If it isn't a discriminated union,
|
|
// return -1.
|
|
//
|
|
// You need to save and restore transient registers around
|
|
// calls to this function.
|
|
|
|
extern int MR_get_num_functors(MR_TypeInfo type_info);
|
|
|
|
// MR_get_functors_check_range:
|
|
//
|
|
// Check that functor_number is in range, and get the functor info if it is.
|
|
// Return MR_FALSE if it is out of range, or if MR_get_functor_info returns
|
|
// MR_FALSE, otherwise return MR_TRUE.
|
|
//
|
|
// You need to save and restore transient registers around
|
|
// calls to this function.
|
|
|
|
extern MR_bool MR_get_functors_check_range(int functor_number,
|
|
MR_TypeInfo type_info,
|
|
MR_Construct_Info *construct_info);
|
|
|
|
// MR_typecheck_arguments:
|
|
//
|
|
// Given a list of univs (`arg_list'), and a vector of type_infos
|
|
// (`arg_vector'), checks that they are all of the same type; if so,
|
|
// returns MR_TRUE, otherwise returns MR_FALSE. `arg_vector' may contain
|
|
// type variables; these will be filled in by the type arguments
|
|
// of `type_info'.
|
|
//
|
|
// Assumes the length of the list has already been checked.
|
|
//
|
|
// You need to save and restore transient registers around
|
|
// calls to this function.
|
|
|
|
extern MR_bool MR_typecheck_arguments(MR_TypeInfo type_info,
|
|
int arity, MR_Word arg_list,
|
|
const MR_PseudoTypeInfo *arg_pseudo_type_infos);
|
|
|
|
#endif // MERCURY_CONSTRUCT_H
|