with99/include/with99.h

62 lines
1.8 KiB
C

#ifndef WITH99_H
#define WITH99_H
#include <metalang99.h>
#include <metalang99/tuple.h>
#include <metalang99/variadics.h>
#include <metalang99/util.h>
#include <metalang99/lang.h>
#include <metalang99/bool.h>
#include <metalang99/maybe.h>
#if !ML99_VERSION_COMPATIBLE(1, 13, 2)
#error Your Metalang99 is a bit mouldy, update to v1.13.2 or later.
#endif
#define WITH99_MAJOR 1
#define WITH99_MINOR 0
#define WITH99_PATCH 0
#define WITH99_VERSION_COMPATIBLE(x, y, z) (WITH99_MAJOR == (x) && ((WITH99_MINOR == (y) && WITH99_PATCH >= (z)) || (WITH99_MINOR > (y))))
#define WITH99_VERSION_EQ(x, y, z) (WITH99_MAJOR == (x) && WITH99_MINOR == (y) && WITH99_PATCH == (z))
#define WITH99_PRIV_IF_ERROR(code)\
if (!(code))
#define WITH99_priv_res2stmt(f, maybe) ML99_call(v(WITH99_priv_res2stmt), f, maybe)
#define WITH99_priv_res2stmt_IMPL(f, maybe)\
ML99_if(\
ML99_isJust(v(maybe)),\
ML99_appl(\
ML99_reify(v(f)),\
ML99_maybeUnwrap(v(maybe))\
),\
v()\
)
#define WITH99_priv_res2stmts_IMPL(tDeclInitDeinit)\
ML99_TERMS(\
WITH99_priv_res2stmt(v(ML99_INTRODUCE_VAR_TO_STMT), ML99_tupleGet(0)(v(tDeclInitDeinit))),\
WITH99_priv_res2stmt(v(WITH99_PRIV_IF_ERROR), ML99_tupleGet(1)(v(tDeclInitDeinit))),\
WITH99_priv_res2stmt(v(ML99_CHAIN_EXPR_STMT_AFTER), ML99_tupleGet(2)(v(tDeclInitDeinit)))\
)
#define WITH99_priv_create_stmt_IMPL(tResNameArgs)\
ML99_call(\
WITH99_priv_res2stmts,\
ML99_call(\
ML99_cat(v(WITH99_resource_), ML99_tupleGet(0)(v(tResNameArgs))),\
ML99_tupleTail(v(tResNameArgs))\
)\
)
#define WITH99_priv_create_stmt_ARITY 1
#define WITH99_With(...) ML99_EVAL(WITH99_with(v(__VA_ARGS__)))
#define WITH99_with(...) ML99_call(WITH99_with, __VA_ARGS__)
#define WITH99_with_IMPL(...) ML99_variadicsForEach(v(WITH99_priv_create_stmt), v(__VA_ARGS__))
#endif