summaryrefslogtreecommitdiff
path: root/libs/luajit-cmake/luajit/src/lj_cconv.h
diff options
context:
space:
mode:
authorsanine <sanine.not@pm.me>2023-03-11 15:58:20 -0600
committersanine <sanine.not@pm.me>2023-03-11 15:58:20 -0600
commitebc50b387ab209c9f9a0d92e340ac293d5697274 (patch)
treeea8c8b3677a18c994d2b9d33dbef3461dcf18113 /libs/luajit-cmake/luajit/src/lj_cconv.h
parentc2329b4c8258baa9429c77566c9def97d00e96d7 (diff)
build & link with luajit instead of lua5.1
Diffstat (limited to 'libs/luajit-cmake/luajit/src/lj_cconv.h')
-rw-r--r--libs/luajit-cmake/luajit/src/lj_cconv.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/libs/luajit-cmake/luajit/src/lj_cconv.h b/libs/luajit-cmake/luajit/src/lj_cconv.h
new file mode 100644
index 0000000..45b0ca1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cconv.h
@@ -0,0 +1,71 @@
+/*
+** C type conversions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCONV_H
+#define _LJ_CCONV_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Compressed C type index. ORDER CCX. */
+enum {
+ CCX_B, /* Bool. */
+ CCX_I, /* Integer. */
+ CCX_F, /* Floating-point number. */
+ CCX_C, /* Complex. */
+ CCX_V, /* Vector. */
+ CCX_P, /* Pointer. */
+ CCX_A, /* Refarray. */
+ CCX_S /* Struct/union. */
+};
+
+/* Convert C type info to compressed C type index. ORDER CT. ORDER CCX. */
+static LJ_AINLINE uint32_t cconv_idx(CTInfo info)
+{
+ uint32_t idx = ((info >> 26) & 15u); /* Dispatch bits. */
+ lj_assertX(ctype_type(info) <= CT_MAYCONVERT,
+ "cannot convert ctype %08x", info);
+#if LJ_64
+ idx = ((uint32_t)(U64x(f436fff5,fff7f021) >> 4*idx) & 15u);
+#else
+ idx = (((idx < 8 ? 0xfff7f021u : 0xf436fff5) >> 4*(idx & 7u)) & 15u);
+#endif
+ lj_assertX(idx < 8, "cannot convert ctype %08x", info);
+ return idx;
+}
+
+#define cconv_idx2(dinfo, sinfo) \
+ ((cconv_idx((dinfo)) << 3) + cconv_idx((sinfo)))
+
+#define CCX(dst, src) ((CCX_##dst << 3) + CCX_##src)
+
+/* Conversion flags. */
+#define CCF_CAST 0x00000001u
+#define CCF_FROMTV 0x00000002u
+#define CCF_SAME 0x00000004u
+#define CCF_IGNQUAL 0x00000008u
+
+#define CCF_ARG_SHIFT 8
+#define CCF_ARG(n) ((n) << CCF_ARG_SHIFT)
+#define CCF_GETARG(f) ((f) >> CCF_ARG_SHIFT)
+
+LJ_FUNC int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags);
+LJ_FUNC void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
+ uint8_t *dp, uint8_t *sp, CTInfo flags);
+LJ_FUNC int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
+ TValue *o, uint8_t *sp);
+LJ_FUNC int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp);
+LJ_FUNC void lj_cconv_ct_tv(CTState *cts, CType *d,
+ uint8_t *dp, TValue *o, CTInfo flags);
+LJ_FUNC void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o);
+LJ_FUNC int lj_cconv_multi_init(CTState *cts, CType *d, TValue *o);
+LJ_FUNC void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
+ uint8_t *dp, TValue *o, MSize len);
+
+#endif
+
+#endif