Initial commit.

2025-02-02 21:44:30 +05:00
commit 6d6caf5436
2 changed files with 102 additions and 0 deletions
@@ -0,0 +1,75 @@
+#ifndef WITH99_H
+#define WITH99_H
+
+#include <metalang99.h>
+#include <metalang99/tuple.h>
+#include <metalang99/util.h>
+#include <metalang99/lang.h>
+#include <metalang99/bool.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_VERSION 1
+
+#define WITH99_PRIV_RESTYPE(res, ...)   WITH99_RESOURCE_TYPE_   ## res (__VA_ARGS__)
+#define WITH99_PRIV_RESINIT(res, ...)   WITH99_RESOURCE_INIT_   ## res (__VA_ARGS__)
+#define WITH99_PRIV_RESFREE(res, ...)   WITH99_RESOURCE_FREE_   ## res (__VA_ARGS__)
+#define WITH99_PRIV_RESTHROWS(res, ...) WITH99_RESOURCE_THROWS_ ## res (__VA_ARGS__)
+
+#define WITH99_PRIV_DECLARE_RESOURCE(res, name, ...) WITH99_PRIV_RESTYPE(res, __VA_ARGS__) name
+#define WITH99_PRIV_INIT_RESOURCE(res, name, ...) WITH99_PRIV_RESINIT(res, &name, __VA_ARGS__)
+#define WITH99_PRIV_FREE_RESOURCE(res, name, ...) WITH99_PRIV_RESFREE(res, &name, __VA_ARGS__)
+#define WITH99_PRIV_THROWS_RESOURCE(res, name, ...) WITH99_PRIV_RESTHROWS(res, __VA_ARGS__)
+
+#define WITH99_PRIV_throw_match_0_IMPL(tResNameArgs)\
+	ML99_appl(ML99_reify(v(ML99_CHAIN_EXPR_STMT)),\
+		ML99_appl(ML99_reify(v(WITH99_PRIV_INIT_RESOURCE)),\
+			ML99_untuple(v(tResNameArgs))\
+		)\
+	)
+
+#define WITH99_PRIV_IF_ERROR(code)\
+	if (!code)
+
+#define WITH99_PRIV_throw_match_1_IMPL(tResNameArgs)\
+	ML99_appl(ML99_reify(v(WITH99_PRIV_IF_ERROR)),\
+		ML99_appl(ML99_reify(v(WITH99_PRIV_INIT_RESOURCE)),\
+				ML99_untuple(v(tResNameArgs))\
+		)\
+	)
+
+#define WITH99_PRIV_create_stmt_IMPL(tResNameArgs)\
+	ML99_appl(ML99_reify(v(ML99_INTRODUCE_VAR_TO_STMT)),\
+		ML99_appl(ML99_reify(v(WITH99_PRIV_DECLARE_RESOURCE)),\
+			ML99_untuple(v(tResNameArgs))\
+		)\
+	),\
+	ML99_boolMatchWithArgs(\
+		ML99_appl(\
+			ML99_reify(\
+				v(WITH99_PRIV_THROWS_RESOURCE)\
+				),\
+			ML99_untuple(v(tResNameArgs))\
+		),\
+		v(WITH99_PRIV_throw_match_),\
+		v(tResNameArgs)\
+	),\
+	ML99_appl(ML99_reify(v(ML99_CHAIN_EXPR_STMT_AFTER)),\
+		ML99_appl(ML99_reify(v(WITH99_PRIV_FREE_RESOURCE)),\
+			ML99_untuple(v(tResNameArgs))\
+		)\
+	)
+
+
+//#define WITH99_PRIV_create_stmt_IMPL(a) ML99_untuple(v(a))
+
+#define WITH99_PRIV_create_stmt_ARITY 1
+
+#define WITH99_With(...) ML99_EVAL(WITH99_with(__VA_ARGS__))
+
+#define WITH99_with(...) ML99_call(WITH99_with, v(__VA_ARGS__))
+#define WITH99_with_IMPL(...) ML99_variadicsForEach(v(WITH99_PRIV_create_stmt), v(__VA_ARGS__))
+
+#endif