mirror of https://github.com/vim/vim.git
2270 lines
57 KiB
C
2270 lines
57 KiB
C
/* vi:set ts=8 sts=4 sw=4 noet:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Lua interface by Luis Carvalho
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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#include "vim.h"
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#include <lua.h>
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#include <lualib.h>
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#include <lauxlib.h>
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// Only do the following when the feature is enabled. Needed for "make
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// depend".
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#if defined(FEAT_LUA) || defined(PROTO)
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#define LUAVIM_CHUNKNAME "vim chunk"
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#define LUAVIM_NAME "vim"
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#define LUAVIM_EVALNAME "luaeval"
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#define LUAVIM_EVALHEADER "local _A=select(1,...) return "
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typedef buf_T *luaV_Buffer;
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typedef win_T *luaV_Window;
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typedef dict_T *luaV_Dict;
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typedef list_T *luaV_List;
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typedef blob_T *luaV_Blob;
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typedef struct {
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char_u *name; // funcref
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dict_T *self; // selfdict
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} luaV_Funcref;
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typedef void (*msgfunc_T)(char_u *);
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static const char LUAVIM_DICT[] = "dict";
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static const char LUAVIM_LIST[] = "list";
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static const char LUAVIM_BLOB[] = "blob";
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static const char LUAVIM_FUNCREF[] = "funcref";
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static const char LUAVIM_BUFFER[] = "buffer";
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static const char LUAVIM_WINDOW[] = "window";
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static const char LUAVIM_FREE[] = "luaV_free";
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static const char LUAVIM_LUAEVAL[] = "luaV_luaeval";
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static const char LUAVIM_SETREF[] = "luaV_setref";
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// most functions are closures with a cache table as first upvalue;
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// get/setudata manage references to vim userdata in cache table through
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// object pointers (light userdata)
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#define luaV_getudata(L, v) \
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lua_pushlightuserdata((L), (void *) (v)); \
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lua_rawget((L), lua_upvalueindex(1))
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#define luaV_setudata(L, v) \
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lua_pushlightuserdata((L), (void *) (v)); \
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lua_pushvalue((L), -2); \
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lua_rawset((L), lua_upvalueindex(1))
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#define luaV_getfield(L, s) \
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lua_pushlightuserdata((L), (void *)(s)); \
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lua_rawget((L), LUA_REGISTRYINDEX)
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#define luaV_checksandbox(L) \
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if (sandbox) luaL_error((L), "not allowed in sandbox")
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#define luaV_msg(L) luaV_msgfunc((L), (msgfunc_T) msg)
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#define luaV_emsg(L) luaV_msgfunc((L), (msgfunc_T) emsg)
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#define luaV_checktypval(L, a, v, msg) \
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do { \
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if (luaV_totypval(L, a, v) == FAIL) \
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luaL_error(L, msg ": cannot convert value"); \
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} while (0)
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static luaV_List *luaV_pushlist(lua_State *L, list_T *lis);
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static luaV_Dict *luaV_pushdict(lua_State *L, dict_T *dic);
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static luaV_Blob *luaV_pushblob(lua_State *L, blob_T *blo);
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static luaV_Funcref *luaV_pushfuncref(lua_State *L, char_u *name);
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#if LUA_VERSION_NUM <= 501
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#define luaV_openlib(L, l, n) luaL_openlib(L, NULL, l, n)
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#define luaL_typeerror luaL_typerror
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#else
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#define luaV_openlib luaL_setfuncs
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#endif
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#ifdef DYNAMIC_LUA
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#ifndef MSWIN
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# include <dlfcn.h>
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# define HANDLE void*
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# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
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# define symbol_from_dll dlsym
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# define close_dll dlclose
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#else
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# define load_dll vimLoadLib
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# define symbol_from_dll GetProcAddress
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# define close_dll FreeLibrary
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#endif
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// lauxlib
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#if LUA_VERSION_NUM <= 501
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#define luaL_register dll_luaL_register
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#define luaL_prepbuffer dll_luaL_prepbuffer
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#define luaL_openlib dll_luaL_openlib
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#define luaL_typerror dll_luaL_typerror
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#define luaL_loadfile dll_luaL_loadfile
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#define luaL_loadbuffer dll_luaL_loadbuffer
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#else
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#define luaL_prepbuffsize dll_luaL_prepbuffsize
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#define luaL_setfuncs dll_luaL_setfuncs
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#define luaL_loadfilex dll_luaL_loadfilex
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#define luaL_loadbufferx dll_luaL_loadbufferx
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#define luaL_argerror dll_luaL_argerror
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#endif
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#define luaL_checkany dll_luaL_checkany
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#define luaL_checklstring dll_luaL_checklstring
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#define luaL_checkinteger dll_luaL_checkinteger
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#define luaL_optinteger dll_luaL_optinteger
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#define luaL_checktype dll_luaL_checktype
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#define luaL_error dll_luaL_error
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#define luaL_newstate dll_luaL_newstate
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#define luaL_buffinit dll_luaL_buffinit
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#define luaL_addlstring dll_luaL_addlstring
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#define luaL_pushresult dll_luaL_pushresult
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// lua
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#if LUA_VERSION_NUM <= 501
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#define lua_tonumber dll_lua_tonumber
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#define lua_tointeger dll_lua_tointeger
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#define lua_call dll_lua_call
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#define lua_pcall dll_lua_pcall
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#else
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#define lua_tonumberx dll_lua_tonumberx
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#define lua_tointegerx dll_lua_tointegerx
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#define lua_callk dll_lua_callk
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#define lua_pcallk dll_lua_pcallk
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#define lua_getglobal dll_lua_getglobal
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#define lua_setglobal dll_lua_setglobal
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#endif
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#if LUA_VERSION_NUM <= 502
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#define lua_replace dll_lua_replace
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#define lua_remove dll_lua_remove
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#endif
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#if LUA_VERSION_NUM >= 503
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#define lua_rotate dll_lua_rotate
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#define lua_copy dll_lua_copy
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#endif
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#define lua_typename dll_lua_typename
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#define lua_close dll_lua_close
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#define lua_gettop dll_lua_gettop
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#define lua_settop dll_lua_settop
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#define lua_pushvalue dll_lua_pushvalue
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#define lua_isnumber dll_lua_isnumber
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#define lua_isstring dll_lua_isstring
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#define lua_type dll_lua_type
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#define lua_rawequal dll_lua_rawequal
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#define lua_toboolean dll_lua_toboolean
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#define lua_tolstring dll_lua_tolstring
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#define lua_touserdata dll_lua_touserdata
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#define lua_pushnil dll_lua_pushnil
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#define lua_pushnumber dll_lua_pushnumber
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#define lua_pushinteger dll_lua_pushinteger
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#define lua_pushlstring dll_lua_pushlstring
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#define lua_pushstring dll_lua_pushstring
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#define lua_pushfstring dll_lua_pushfstring
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#define lua_pushcclosure dll_lua_pushcclosure
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#define lua_pushboolean dll_lua_pushboolean
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#define lua_pushlightuserdata dll_lua_pushlightuserdata
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#define lua_getfield dll_lua_getfield
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#define lua_rawget dll_lua_rawget
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#define lua_rawgeti dll_lua_rawgeti
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#define lua_createtable dll_lua_createtable
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#if LUA_VERSION_NUM >= 504
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#define lua_newuserdatauv dll_lua_newuserdatauv
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#else
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#define lua_newuserdata dll_lua_newuserdata
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#endif
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#define lua_getmetatable dll_lua_getmetatable
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#define lua_setfield dll_lua_setfield
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#define lua_rawset dll_lua_rawset
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#define lua_rawseti dll_lua_rawseti
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#define lua_setmetatable dll_lua_setmetatable
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#define lua_next dll_lua_next
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// libs
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#define luaopen_base dll_luaopen_base
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#define luaopen_table dll_luaopen_table
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#define luaopen_string dll_luaopen_string
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#define luaopen_math dll_luaopen_math
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#define luaopen_io dll_luaopen_io
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#define luaopen_os dll_luaopen_os
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#define luaopen_package dll_luaopen_package
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#define luaopen_debug dll_luaopen_debug
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#define luaL_openlibs dll_luaL_openlibs
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// lauxlib
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#if LUA_VERSION_NUM <= 501
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void (*dll_luaL_register) (lua_State *L, const char *libname, const luaL_Reg *l);
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char *(*dll_luaL_prepbuffer) (luaL_Buffer *B);
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void (*dll_luaL_openlib) (lua_State *L, const char *libname, const luaL_Reg *l, int nup);
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int (*dll_luaL_typerror) (lua_State *L, int narg, const char *tname);
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int (*dll_luaL_loadfile) (lua_State *L, const char *filename);
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int (*dll_luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz, const char *name);
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#else
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char *(*dll_luaL_prepbuffsize) (luaL_Buffer *B, size_t sz);
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void (*dll_luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
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int (*dll_luaL_loadfilex) (lua_State *L, const char *filename, const char *mode);
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int (*dll_luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz, const char *name, const char *mode);
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int (*dll_luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
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#endif
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void (*dll_luaL_checkany) (lua_State *L, int narg);
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const char *(*dll_luaL_checklstring) (lua_State *L, int numArg, size_t *l);
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lua_Integer (*dll_luaL_checkinteger) (lua_State *L, int numArg);
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lua_Integer (*dll_luaL_optinteger) (lua_State *L, int nArg, lua_Integer def);
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void (*dll_luaL_checktype) (lua_State *L, int narg, int t);
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int (*dll_luaL_error) (lua_State *L, const char *fmt, ...);
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lua_State *(*dll_luaL_newstate) (void);
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void (*dll_luaL_buffinit) (lua_State *L, luaL_Buffer *B);
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void (*dll_luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
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void (*dll_luaL_pushresult) (luaL_Buffer *B);
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// lua
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#if LUA_VERSION_NUM <= 501
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lua_Number (*dll_lua_tonumber) (lua_State *L, int idx);
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lua_Integer (*dll_lua_tointeger) (lua_State *L, int idx);
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void (*dll_lua_call) (lua_State *L, int nargs, int nresults);
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int (*dll_lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
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#else
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lua_Number (*dll_lua_tonumberx) (lua_State *L, int idx, int *isnum);
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lua_Integer (*dll_lua_tointegerx) (lua_State *L, int idx, int *isnum);
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void (*dll_lua_callk) (lua_State *L, int nargs, int nresults, int ctx,
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lua_CFunction k);
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int (*dll_lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
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int ctx, lua_CFunction k);
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void (*dll_lua_getglobal) (lua_State *L, const char *var);
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void (*dll_lua_setglobal) (lua_State *L, const char *var);
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#endif
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#if LUA_VERSION_NUM <= 502
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void (*dll_lua_replace) (lua_State *L, int idx);
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void (*dll_lua_remove) (lua_State *L, int idx);
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#endif
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#if LUA_VERSION_NUM >= 503
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void (*dll_lua_rotate) (lua_State *L, int idx, int n);
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void (*dll_lua_copy) (lua_State *L, int fromidx, int toidx);
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#endif
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const char *(*dll_lua_typename) (lua_State *L, int tp);
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void (*dll_lua_close) (lua_State *L);
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int (*dll_lua_gettop) (lua_State *L);
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void (*dll_lua_settop) (lua_State *L, int idx);
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void (*dll_lua_pushvalue) (lua_State *L, int idx);
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int (*dll_lua_isnumber) (lua_State *L, int idx);
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int (*dll_lua_isstring) (lua_State *L, int idx);
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int (*dll_lua_type) (lua_State *L, int idx);
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int (*dll_lua_rawequal) (lua_State *L, int idx1, int idx2);
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int (*dll_lua_toboolean) (lua_State *L, int idx);
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const char *(*dll_lua_tolstring) (lua_State *L, int idx, size_t *len);
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void *(*dll_lua_touserdata) (lua_State *L, int idx);
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void (*dll_lua_pushnil) (lua_State *L);
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void (*dll_lua_pushnumber) (lua_State *L, lua_Number n);
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void (*dll_lua_pushinteger) (lua_State *L, lua_Integer n);
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void (*dll_lua_pushlstring) (lua_State *L, const char *s, size_t l);
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void (*dll_lua_pushstring) (lua_State *L, const char *s);
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const char *(*dll_lua_pushfstring) (lua_State *L, const char *fmt, ...);
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void (*dll_lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
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void (*dll_lua_pushboolean) (lua_State *L, int b);
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void (*dll_lua_pushlightuserdata) (lua_State *L, void *p);
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void (*dll_lua_getfield) (lua_State *L, int idx, const char *k);
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#if LUA_VERSION_NUM <= 502
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void (*dll_lua_rawget) (lua_State *L, int idx);
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void (*dll_lua_rawgeti) (lua_State *L, int idx, int n);
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#else
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int (*dll_lua_rawget) (lua_State *L, int idx);
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int (*dll_lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
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#endif
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void (*dll_lua_createtable) (lua_State *L, int narr, int nrec);
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#if LUA_VERSION_NUM >= 504
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void *(*dll_lua_newuserdatauv) (lua_State *L, size_t sz, int nuvalue);
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#else
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void *(*dll_lua_newuserdata) (lua_State *L, size_t sz);
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#endif
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int (*dll_lua_getmetatable) (lua_State *L, int objindex);
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void (*dll_lua_setfield) (lua_State *L, int idx, const char *k);
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void (*dll_lua_rawset) (lua_State *L, int idx);
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#if LUA_VERSION_NUM <= 502
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void (*dll_lua_rawseti) (lua_State *L, int idx, int n);
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#else
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void (*dll_lua_rawseti) (lua_State *L, int idx, lua_Integer n);
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#endif
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int (*dll_lua_setmetatable) (lua_State *L, int objindex);
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int (*dll_lua_next) (lua_State *L, int idx);
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// libs
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int (*dll_luaopen_base) (lua_State *L);
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int (*dll_luaopen_table) (lua_State *L);
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int (*dll_luaopen_string) (lua_State *L);
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int (*dll_luaopen_math) (lua_State *L);
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int (*dll_luaopen_io) (lua_State *L);
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int (*dll_luaopen_os) (lua_State *L);
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int (*dll_luaopen_package) (lua_State *L);
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int (*dll_luaopen_debug) (lua_State *L);
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void (*dll_luaL_openlibs) (lua_State *L);
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typedef void **luaV_function;
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typedef struct {
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const char *name;
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luaV_function func;
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} luaV_Reg;
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static const luaV_Reg luaV_dll[] = {
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// lauxlib
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#if LUA_VERSION_NUM <= 501
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{"luaL_register", (luaV_function) &dll_luaL_register},
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{"luaL_prepbuffer", (luaV_function) &dll_luaL_prepbuffer},
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{"luaL_openlib", (luaV_function) &dll_luaL_openlib},
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{"luaL_typerror", (luaV_function) &dll_luaL_typerror},
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{"luaL_loadfile", (luaV_function) &dll_luaL_loadfile},
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{"luaL_loadbuffer", (luaV_function) &dll_luaL_loadbuffer},
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#else
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{"luaL_prepbuffsize", (luaV_function) &dll_luaL_prepbuffsize},
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{"luaL_setfuncs", (luaV_function) &dll_luaL_setfuncs},
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{"luaL_loadfilex", (luaV_function) &dll_luaL_loadfilex},
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{"luaL_loadbufferx", (luaV_function) &dll_luaL_loadbufferx},
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{"luaL_argerror", (luaV_function) &dll_luaL_argerror},
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#endif
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{"luaL_checkany", (luaV_function) &dll_luaL_checkany},
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{"luaL_checklstring", (luaV_function) &dll_luaL_checklstring},
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{"luaL_checkinteger", (luaV_function) &dll_luaL_checkinteger},
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{"luaL_optinteger", (luaV_function) &dll_luaL_optinteger},
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{"luaL_checktype", (luaV_function) &dll_luaL_checktype},
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{"luaL_error", (luaV_function) &dll_luaL_error},
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{"luaL_newstate", (luaV_function) &dll_luaL_newstate},
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{"luaL_buffinit", (luaV_function) &dll_luaL_buffinit},
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{"luaL_addlstring", (luaV_function) &dll_luaL_addlstring},
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{"luaL_pushresult", (luaV_function) &dll_luaL_pushresult},
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// lua
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#if LUA_VERSION_NUM <= 501
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{"lua_tonumber", (luaV_function) &dll_lua_tonumber},
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{"lua_tointeger", (luaV_function) &dll_lua_tointeger},
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{"lua_call", (luaV_function) &dll_lua_call},
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{"lua_pcall", (luaV_function) &dll_lua_pcall},
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#else
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{"lua_tonumberx", (luaV_function) &dll_lua_tonumberx},
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{"lua_tointegerx", (luaV_function) &dll_lua_tointegerx},
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{"lua_callk", (luaV_function) &dll_lua_callk},
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{"lua_pcallk", (luaV_function) &dll_lua_pcallk},
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{"lua_getglobal", (luaV_function) &dll_lua_getglobal},
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{"lua_setglobal", (luaV_function) &dll_lua_setglobal},
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#endif
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#if LUA_VERSION_NUM <= 502
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{"lua_replace", (luaV_function) &dll_lua_replace},
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{"lua_remove", (luaV_function) &dll_lua_remove},
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#endif
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#if LUA_VERSION_NUM >= 503
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{"lua_rotate", (luaV_function) &dll_lua_rotate},
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{"lua_copy", (luaV_function) &dll_lua_copy},
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#endif
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{"lua_typename", (luaV_function) &dll_lua_typename},
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{"lua_close", (luaV_function) &dll_lua_close},
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{"lua_gettop", (luaV_function) &dll_lua_gettop},
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{"lua_settop", (luaV_function) &dll_lua_settop},
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{"lua_pushvalue", (luaV_function) &dll_lua_pushvalue},
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{"lua_isnumber", (luaV_function) &dll_lua_isnumber},
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{"lua_isstring", (luaV_function) &dll_lua_isstring},
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{"lua_type", (luaV_function) &dll_lua_type},
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{"lua_rawequal", (luaV_function) &dll_lua_rawequal},
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{"lua_toboolean", (luaV_function) &dll_lua_toboolean},
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{"lua_tolstring", (luaV_function) &dll_lua_tolstring},
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{"lua_touserdata", (luaV_function) &dll_lua_touserdata},
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{"lua_pushnil", (luaV_function) &dll_lua_pushnil},
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{"lua_pushnumber", (luaV_function) &dll_lua_pushnumber},
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{"lua_pushinteger", (luaV_function) &dll_lua_pushinteger},
|
|
{"lua_pushlstring", (luaV_function) &dll_lua_pushlstring},
|
|
{"lua_pushstring", (luaV_function) &dll_lua_pushstring},
|
|
{"lua_pushfstring", (luaV_function) &dll_lua_pushfstring},
|
|
{"lua_pushcclosure", (luaV_function) &dll_lua_pushcclosure},
|
|
{"lua_pushboolean", (luaV_function) &dll_lua_pushboolean},
|
|
{"lua_pushlightuserdata", (luaV_function) &dll_lua_pushlightuserdata},
|
|
{"lua_getfield", (luaV_function) &dll_lua_getfield},
|
|
{"lua_rawget", (luaV_function) &dll_lua_rawget},
|
|
{"lua_rawgeti", (luaV_function) &dll_lua_rawgeti},
|
|
{"lua_createtable", (luaV_function) &dll_lua_createtable},
|
|
#if LUA_VERSION_NUM >= 504
|
|
{"lua_newuserdatauv", (luaV_function) &dll_lua_newuserdatauv},
|
|
#else
|
|
{"lua_newuserdata", (luaV_function) &dll_lua_newuserdata},
|
|
#endif
|
|
{"lua_getmetatable", (luaV_function) &dll_lua_getmetatable},
|
|
{"lua_setfield", (luaV_function) &dll_lua_setfield},
|
|
{"lua_rawset", (luaV_function) &dll_lua_rawset},
|
|
{"lua_rawseti", (luaV_function) &dll_lua_rawseti},
|
|
{"lua_setmetatable", (luaV_function) &dll_lua_setmetatable},
|
|
{"lua_next", (luaV_function) &dll_lua_next},
|
|
// libs
|
|
{"luaopen_base", (luaV_function) &dll_luaopen_base},
|
|
{"luaopen_table", (luaV_function) &dll_luaopen_table},
|
|
{"luaopen_string", (luaV_function) &dll_luaopen_string},
|
|
{"luaopen_math", (luaV_function) &dll_luaopen_math},
|
|
{"luaopen_io", (luaV_function) &dll_luaopen_io},
|
|
{"luaopen_os", (luaV_function) &dll_luaopen_os},
|
|
{"luaopen_package", (luaV_function) &dll_luaopen_package},
|
|
{"luaopen_debug", (luaV_function) &dll_luaopen_debug},
|
|
{"luaL_openlibs", (luaV_function) &dll_luaL_openlibs},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
static HANDLE hinstLua = NULL;
|
|
|
|
static void
|
|
end_dynamic_lua(void)
|
|
{
|
|
if (hinstLua)
|
|
{
|
|
close_dll(hinstLua);
|
|
hinstLua = 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
lua_link_init(char *libname, int verbose)
|
|
{
|
|
const luaV_Reg *reg;
|
|
if (hinstLua) return OK;
|
|
hinstLua = load_dll(libname);
|
|
if (!hinstLua)
|
|
{
|
|
if (verbose)
|
|
semsg(_(e_loadlib), libname);
|
|
return FAIL;
|
|
}
|
|
for (reg = luaV_dll; reg->func; reg++)
|
|
{
|
|
if ((*reg->func = symbol_from_dll(hinstLua, reg->name)) == NULL)
|
|
{
|
|
close_dll(hinstLua);
|
|
hinstLua = 0;
|
|
if (verbose)
|
|
semsg(_(e_loadfunc), reg->name);
|
|
return FAIL;
|
|
}
|
|
}
|
|
return OK;
|
|
}
|
|
#endif // DYNAMIC_LUA
|
|
|
|
#if defined(DYNAMIC_LUA) || defined(PROTO)
|
|
int
|
|
lua_enabled(int verbose)
|
|
{
|
|
return lua_link_init((char *)p_luadll, verbose) == OK;
|
|
}
|
|
#endif
|
|
|
|
#if LUA_VERSION_NUM > 501
|
|
static int
|
|
luaL_typeerror(lua_State *L, int narg, const char *tname)
|
|
{
|
|
const char *msg = lua_pushfstring(L, "%s expected, got %s",
|
|
tname, luaL_typename(L, narg));
|
|
return luaL_argerror(L, narg, msg);
|
|
}
|
|
#endif
|
|
|
|
|
|
// ======= Internal =======
|
|
|
|
static void
|
|
luaV_newmetatable(lua_State *L, const char *tname)
|
|
{
|
|
lua_newtable(L);
|
|
lua_pushlightuserdata(L, (void *) tname);
|
|
lua_pushvalue(L, -2);
|
|
lua_rawset(L, LUA_REGISTRYINDEX);
|
|
}
|
|
|
|
static void *
|
|
luaV_toudata(lua_State *L, int ud, const char *tname)
|
|
{
|
|
void *p = lua_touserdata(L, ud);
|
|
|
|
if (p != NULL) // value is userdata?
|
|
{
|
|
if (lua_getmetatable(L, ud)) // does it have a metatable?
|
|
{
|
|
luaV_getfield(L, tname); // get metatable
|
|
if (lua_rawequal(L, -1, -2)) // MTs match?
|
|
{
|
|
lua_pop(L, 2); // MTs
|
|
return p;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void *
|
|
luaV_checkcache(lua_State *L, void *p)
|
|
{
|
|
luaV_getudata(L, p);
|
|
if (lua_isnil(L, -1)) luaL_error(L, "invalid object");
|
|
lua_pop(L, 1);
|
|
return p;
|
|
}
|
|
|
|
#define luaV_unbox(L,luatyp,ud) (*((luatyp *) lua_touserdata((L),(ud))))
|
|
|
|
#define luaV_checkvalid(L,luatyp,ud) \
|
|
luaV_checkcache((L), (void *) luaV_unbox((L),luatyp,(ud)))
|
|
|
|
static void *
|
|
luaV_checkudata(lua_State *L, int ud, const char *tname)
|
|
{
|
|
void *p = luaV_toudata(L, ud, tname);
|
|
if (p == NULL) luaL_typeerror(L, ud, tname);
|
|
return p;
|
|
}
|
|
|
|
static void
|
|
luaV_pushtypval(lua_State *L, typval_T *tv)
|
|
{
|
|
if (tv == NULL)
|
|
{
|
|
lua_pushnil(L);
|
|
return;
|
|
}
|
|
switch (tv->v_type)
|
|
{
|
|
case VAR_STRING:
|
|
lua_pushstring(L, tv->vval.v_string == NULL
|
|
? "" : (char *)tv->vval.v_string);
|
|
break;
|
|
case VAR_NUMBER:
|
|
lua_pushinteger(L, (int) tv->vval.v_number);
|
|
break;
|
|
#ifdef FEAT_FLOAT
|
|
case VAR_FLOAT:
|
|
lua_pushnumber(L, (lua_Number) tv->vval.v_float);
|
|
break;
|
|
#endif
|
|
case VAR_LIST:
|
|
luaV_pushlist(L, tv->vval.v_list);
|
|
break;
|
|
case VAR_DICT:
|
|
luaV_pushdict(L, tv->vval.v_dict);
|
|
break;
|
|
case VAR_BOOL:
|
|
case VAR_SPECIAL:
|
|
if (tv->vval.v_number <= VVAL_TRUE)
|
|
lua_pushinteger(L, (int) tv->vval.v_number);
|
|
else
|
|
lua_pushnil(L);
|
|
break;
|
|
case VAR_FUNC:
|
|
luaV_pushfuncref(L, tv->vval.v_string);
|
|
break;
|
|
case VAR_BLOB:
|
|
luaV_pushblob(L, tv->vval.v_blob);
|
|
break;
|
|
default:
|
|
lua_pushnil(L);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Converts lua value at 'pos' to typval 'tv'.
|
|
* Returns OK or FAIL.
|
|
*/
|
|
static int
|
|
luaV_totypval(lua_State *L, int pos, typval_T *tv)
|
|
{
|
|
int status = OK;
|
|
|
|
switch (lua_type(L, pos))
|
|
{
|
|
case LUA_TBOOLEAN:
|
|
tv->v_type = VAR_BOOL;
|
|
tv->vval.v_number = (varnumber_T) lua_toboolean(L, pos);
|
|
break;
|
|
case LUA_TNIL:
|
|
tv->v_type = VAR_SPECIAL;
|
|
tv->vval.v_number = VVAL_NULL;
|
|
break;
|
|
case LUA_TSTRING:
|
|
tv->v_type = VAR_STRING;
|
|
tv->vval.v_string = vim_strsave((char_u *) lua_tostring(L, pos));
|
|
break;
|
|
case LUA_TNUMBER:
|
|
#ifdef FEAT_FLOAT
|
|
tv->v_type = VAR_FLOAT;
|
|
tv->vval.v_float = (float_T) lua_tonumber(L, pos);
|
|
#else
|
|
tv->v_type = VAR_NUMBER;
|
|
tv->vval.v_number = (varnumber_T) lua_tointeger(L, pos);
|
|
#endif
|
|
break;
|
|
case LUA_TUSERDATA:
|
|
{
|
|
void *p = lua_touserdata(L, pos);
|
|
|
|
if (lua_getmetatable(L, pos)) // has metatable?
|
|
{
|
|
// check list
|
|
luaV_getfield(L, LUAVIM_LIST);
|
|
if (lua_rawequal(L, -1, -2))
|
|
{
|
|
tv->v_type = VAR_LIST;
|
|
tv->vval.v_list = *((luaV_List *) p);
|
|
++tv->vval.v_list->lv_refcount;
|
|
lua_pop(L, 2); // MTs
|
|
break;
|
|
}
|
|
// check dict
|
|
luaV_getfield(L, LUAVIM_DICT);
|
|
if (lua_rawequal(L, -1, -3))
|
|
{
|
|
tv->v_type = VAR_DICT;
|
|
tv->vval.v_dict = *((luaV_Dict *) p);
|
|
++tv->vval.v_dict->dv_refcount;
|
|
lua_pop(L, 3); // MTs
|
|
break;
|
|
}
|
|
// check blob
|
|
luaV_getfield(L, LUAVIM_BLOB);
|
|
if (lua_rawequal(L, -1, -4))
|
|
{
|
|
tv->v_type = VAR_BLOB;
|
|
tv->vval.v_blob = *((luaV_Blob *) p);
|
|
++tv->vval.v_blob->bv_refcount;
|
|
lua_pop(L, 4); // MTs
|
|
break;
|
|
}
|
|
// check funcref
|
|
luaV_getfield(L, LUAVIM_FUNCREF);
|
|
if (lua_rawequal(L, -1, -5))
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *) p;
|
|
func_ref(f->name);
|
|
tv->v_type = VAR_FUNC;
|
|
tv->vval.v_string = vim_strsave(f->name);
|
|
lua_pop(L, 5); // MTs
|
|
break;
|
|
}
|
|
lua_pop(L, 4); // MTs
|
|
}
|
|
}
|
|
// FALLTHROUGH
|
|
default:
|
|
tv->v_type = VAR_NUMBER;
|
|
tv->vval.v_number = 0;
|
|
status = FAIL;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* similar to luaL_addlstring, but replaces \0 with \n if toline and
|
|
* \n with \0 otherwise
|
|
*/
|
|
static void
|
|
luaV_addlstring(luaL_Buffer *b, const char *s, size_t l, int toline)
|
|
{
|
|
while (l--)
|
|
{
|
|
if (*s == '\0' && toline)
|
|
luaL_addchar(b, '\n');
|
|
else if (*s == '\n' && !toline)
|
|
luaL_addchar(b, '\0');
|
|
else
|
|
luaL_addchar(b, *s);
|
|
s++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
luaV_pushline(lua_State *L, buf_T *buf, linenr_T n)
|
|
{
|
|
const char *s = (const char *) ml_get_buf(buf, n, FALSE);
|
|
luaL_Buffer b;
|
|
luaL_buffinit(L, &b);
|
|
luaV_addlstring(&b, s, strlen(s), 0);
|
|
luaL_pushresult(&b);
|
|
}
|
|
|
|
static char_u *
|
|
luaV_toline(lua_State *L, int pos)
|
|
{
|
|
size_t l;
|
|
const char *s = lua_tolstring(L, pos, &l);
|
|
|
|
luaL_Buffer b;
|
|
luaL_buffinit(L, &b);
|
|
luaV_addlstring(&b, s, l, 1);
|
|
luaL_pushresult(&b);
|
|
return (char_u *) lua_tostring(L, -1);
|
|
}
|
|
|
|
/*
|
|
* pops a string s from the top of the stack and calls mf(t) for pieces t of
|
|
* s separated by newlines
|
|
*/
|
|
static void
|
|
luaV_msgfunc(lua_State *L, msgfunc_T mf)
|
|
{
|
|
luaL_Buffer b;
|
|
size_t l;
|
|
const char *p, *s = lua_tolstring(L, -1, &l);
|
|
luaL_buffinit(L, &b);
|
|
luaV_addlstring(&b, s, l, 0);
|
|
luaL_pushresult(&b);
|
|
// break string
|
|
p = s = lua_tolstring(L, -1, &l);
|
|
while (l--)
|
|
{
|
|
if (*p++ == '\0') // break?
|
|
{
|
|
mf((char_u *) s);
|
|
s = p;
|
|
}
|
|
}
|
|
mf((char_u *) s);
|
|
lua_pop(L, 2); // original and modified strings
|
|
}
|
|
|
|
#define luaV_newtype(typ,tname,luatyp,luatname) \
|
|
static luatyp * \
|
|
luaV_new##tname(lua_State *L, typ *obj) \
|
|
{ \
|
|
luatyp *o = (luatyp *) lua_newuserdata(L, sizeof(luatyp)); \
|
|
*o = obj; \
|
|
luaV_setudata(L, obj); /* cache[obj] = udata */ \
|
|
luaV_getfield(L, luatname); \
|
|
lua_setmetatable(L, -2); \
|
|
return o; \
|
|
}
|
|
|
|
#define luaV_pushtype(typ,tname,luatyp) \
|
|
static luatyp * \
|
|
luaV_push##tname(lua_State *L, typ *obj) \
|
|
{ \
|
|
luatyp *o = NULL; \
|
|
if (obj == NULL) \
|
|
lua_pushnil(L); \
|
|
else { \
|
|
luaV_getudata(L, obj); \
|
|
if (lua_isnil(L, -1)) /* not interned? */ \
|
|
{ \
|
|
lua_pop(L, 1); \
|
|
o = luaV_new##tname(L, obj); \
|
|
} \
|
|
else \
|
|
o = (luatyp *) lua_touserdata(L, -1); \
|
|
} \
|
|
return o; \
|
|
}
|
|
|
|
#define luaV_type_tostring(tname,luatname) \
|
|
static int \
|
|
luaV_##tname##_tostring(lua_State *L) \
|
|
{ \
|
|
lua_pushfstring(L, "%s: %p", luatname, lua_touserdata(L, 1)); \
|
|
return 1; \
|
|
}
|
|
|
|
// ======= List type =======
|
|
|
|
static luaV_List *
|
|
luaV_newlist(lua_State *L, list_T *lis)
|
|
{
|
|
luaV_List *l = (luaV_List *) lua_newuserdata(L, sizeof(luaV_List));
|
|
*l = lis;
|
|
lis->lv_refcount++; // reference in Lua
|
|
luaV_setudata(L, lis); // cache[lis] = udata
|
|
luaV_getfield(L, LUAVIM_LIST);
|
|
lua_setmetatable(L, -2);
|
|
return l;
|
|
}
|
|
|
|
luaV_pushtype(list_T, list, luaV_List)
|
|
luaV_type_tostring(list, LUAVIM_LIST)
|
|
|
|
static int
|
|
luaV_list_len(lua_State *L)
|
|
{
|
|
list_T *l = luaV_unbox(L, luaV_List, 1);
|
|
lua_pushinteger(L, (int) list_len(l));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_list_iter(lua_State *L)
|
|
{
|
|
listitem_T *li = (listitem_T *) lua_touserdata(L, lua_upvalueindex(2));
|
|
if (li == NULL) return 0;
|
|
luaV_pushtypval(L, &li->li_tv);
|
|
lua_pushlightuserdata(L, (void *) li->li_next);
|
|
lua_replace(L, lua_upvalueindex(2));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_list_call(lua_State *L)
|
|
{
|
|
list_T *l = luaV_unbox(L, luaV_List, 1);
|
|
lua_pushvalue(L, lua_upvalueindex(1)); // pass cache table along
|
|
lua_pushlightuserdata(L, (void *) l->lv_first);
|
|
lua_pushcclosure(L, luaV_list_iter, 2);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_list_index(lua_State *L)
|
|
{
|
|
list_T *l = luaV_unbox(L, luaV_List, 1);
|
|
if (lua_isnumber(L, 2)) // list item?
|
|
{
|
|
listitem_T *li = list_find(l, (long) luaL_checkinteger(L, 2));
|
|
if (li == NULL)
|
|
lua_pushnil(L);
|
|
else
|
|
luaV_pushtypval(L, &li->li_tv);
|
|
}
|
|
else if (lua_isstring(L, 2)) // method?
|
|
{
|
|
const char *s = lua_tostring(L, 2);
|
|
if (strncmp(s, "add", 3) == 0
|
|
|| strncmp(s, "insert", 6) == 0)
|
|
{
|
|
lua_getmetatable(L, 1);
|
|
lua_getfield(L, -1, s);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_list_newindex(lua_State *L)
|
|
{
|
|
list_T *l = luaV_unbox(L, luaV_List, 1);
|
|
long n = (long) luaL_checkinteger(L, 2);
|
|
listitem_T *li;
|
|
if (l->lv_lock)
|
|
luaL_error(L, "list is locked");
|
|
li = list_find(l, n);
|
|
if (li == NULL) return 0;
|
|
if (lua_isnil(L, 3)) // remove?
|
|
{
|
|
vimlist_remove(l, li, li);
|
|
listitem_free(l, li);
|
|
}
|
|
else
|
|
{
|
|
typval_T v;
|
|
luaV_checktypval(L, 3, &v, "setting list item");
|
|
clear_tv(&li->li_tv);
|
|
copy_tv(&v, &li->li_tv);
|
|
clear_tv(&v);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_list_add(lua_State *L)
|
|
{
|
|
luaV_List *lis = luaV_checkudata(L, 1, LUAVIM_LIST);
|
|
list_T *l = (list_T *) luaV_checkcache(L, (void *) *lis);
|
|
typval_T v;
|
|
if (l->lv_lock)
|
|
luaL_error(L, "list is locked");
|
|
lua_settop(L, 2);
|
|
luaV_checktypval(L, 2, &v, "adding list item");
|
|
if (list_append_tv(l, &v) == FAIL)
|
|
luaL_error(L, "failed to add item to list");
|
|
clear_tv(&v);
|
|
lua_settop(L, 1);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_list_insert(lua_State *L)
|
|
{
|
|
luaV_List *lis = luaV_checkudata(L, 1, LUAVIM_LIST);
|
|
list_T *l = (list_T *) luaV_checkcache(L, (void *) *lis);
|
|
long pos = (long) luaL_optinteger(L, 3, 0);
|
|
listitem_T *li = NULL;
|
|
typval_T v;
|
|
if (l->lv_lock)
|
|
luaL_error(L, "list is locked");
|
|
if (pos < l->lv_len)
|
|
{
|
|
li = list_find(l, pos);
|
|
if (li == NULL)
|
|
luaL_error(L, "invalid position");
|
|
}
|
|
lua_settop(L, 2);
|
|
luaV_checktypval(L, 2, &v, "inserting list item");
|
|
if (list_insert_tv(l, &v, li) == FAIL)
|
|
luaL_error(L, "failed to add item to list");
|
|
clear_tv(&v);
|
|
lua_settop(L, 1);
|
|
return 1;
|
|
}
|
|
|
|
static const luaL_Reg luaV_List_mt[] = {
|
|
{"__tostring", luaV_list_tostring},
|
|
{"__len", luaV_list_len},
|
|
{"__call", luaV_list_call},
|
|
{"__index", luaV_list_index},
|
|
{"__newindex", luaV_list_newindex},
|
|
{"add", luaV_list_add},
|
|
{"insert", luaV_list_insert},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
// ======= Dict type =======
|
|
|
|
static luaV_Dict *
|
|
luaV_newdict(lua_State *L, dict_T *dic)
|
|
{
|
|
luaV_Dict *d = (luaV_Dict *) lua_newuserdata(L, sizeof(luaV_Dict));
|
|
*d = dic;
|
|
dic->dv_refcount++; // reference in Lua
|
|
luaV_setudata(L, dic); // cache[dic] = udata
|
|
luaV_getfield(L, LUAVIM_DICT);
|
|
lua_setmetatable(L, -2);
|
|
return d;
|
|
}
|
|
|
|
luaV_pushtype(dict_T, dict, luaV_Dict)
|
|
luaV_type_tostring(dict, LUAVIM_DICT)
|
|
|
|
static int
|
|
luaV_dict_len(lua_State *L)
|
|
{
|
|
dict_T *d = luaV_unbox(L, luaV_Dict, 1);
|
|
lua_pushinteger(L, (int) dict_len(d));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_dict_iter(lua_State *L UNUSED)
|
|
{
|
|
#ifdef FEAT_EVAL
|
|
hashitem_T *hi = (hashitem_T *) lua_touserdata(L, lua_upvalueindex(2));
|
|
int n = lua_tointeger(L, lua_upvalueindex(3));
|
|
dictitem_T *di;
|
|
if (n <= 0) return 0;
|
|
while (HASHITEM_EMPTY(hi)) hi++;
|
|
di = dict_lookup(hi);
|
|
lua_pushstring(L, (char *) hi->hi_key);
|
|
luaV_pushtypval(L, &di->di_tv);
|
|
lua_pushlightuserdata(L, (void *) (hi + 1));
|
|
lua_replace(L, lua_upvalueindex(2));
|
|
lua_pushinteger(L, n - 1);
|
|
lua_replace(L, lua_upvalueindex(3));
|
|
return 2;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
static int
|
|
luaV_dict_call(lua_State *L)
|
|
{
|
|
dict_T *d = luaV_unbox(L, luaV_Dict, 1);
|
|
hashtab_T *ht = &d->dv_hashtab;
|
|
lua_pushvalue(L, lua_upvalueindex(1)); // pass cache table along
|
|
lua_pushlightuserdata(L, (void *) ht->ht_array);
|
|
lua_pushinteger(L, ht->ht_used); // # remaining items
|
|
lua_pushcclosure(L, luaV_dict_iter, 3);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_dict_index(lua_State *L)
|
|
{
|
|
dict_T *d = luaV_unbox(L, luaV_Dict, 1);
|
|
char_u *key = (char_u *) luaL_checkstring(L, 2);
|
|
dictitem_T *di = dict_find(d, key, -1);
|
|
|
|
if (di == NULL)
|
|
lua_pushnil(L);
|
|
else
|
|
{
|
|
luaV_pushtypval(L, &di->di_tv);
|
|
if (di->di_tv.v_type == VAR_FUNC) // funcref?
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *) lua_touserdata(L, -1);
|
|
f->self = d; // keep "self" reference
|
|
d->dv_refcount++;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_dict_newindex(lua_State *L)
|
|
{
|
|
dict_T *d = luaV_unbox(L, luaV_Dict, 1);
|
|
char_u *key = (char_u *) luaL_checkstring(L, 2);
|
|
dictitem_T *di;
|
|
typval_T v;
|
|
|
|
if (d->dv_lock)
|
|
luaL_error(L, "dict is locked");
|
|
if (key == NULL)
|
|
return 0;
|
|
if (*key == NUL)
|
|
luaL_error(L, "empty key");
|
|
if (!lua_isnil(L, 3)) // read value?
|
|
{
|
|
luaV_checktypval(L, 3, &v, "setting dict item");
|
|
if (d->dv_scope == VAR_DEF_SCOPE && v.v_type == VAR_FUNC)
|
|
luaL_error(L, "cannot assign funcref to builtin scope");
|
|
}
|
|
di = dict_find(d, key, -1);
|
|
if (di == NULL) // non-existing key?
|
|
{
|
|
if (lua_isnil(L, 3))
|
|
return 0;
|
|
di = dictitem_alloc(key);
|
|
if (di == NULL)
|
|
return 0;
|
|
if (dict_add(d, di) == FAIL)
|
|
{
|
|
vim_free(di);
|
|
return 0;
|
|
}
|
|
}
|
|
else
|
|
clear_tv(&di->di_tv);
|
|
if (lua_isnil(L, 3)) // remove?
|
|
{
|
|
hashitem_T *hi = hash_find(&d->dv_hashtab, di->di_key);
|
|
hash_remove(&d->dv_hashtab, hi);
|
|
dictitem_free(di);
|
|
}
|
|
else
|
|
{
|
|
copy_tv(&v, &di->di_tv);
|
|
clear_tv(&v);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const luaL_Reg luaV_Dict_mt[] = {
|
|
{"__tostring", luaV_dict_tostring},
|
|
{"__len", luaV_dict_len},
|
|
{"__call", luaV_dict_call},
|
|
{"__index", luaV_dict_index},
|
|
{"__newindex", luaV_dict_newindex},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
// ======= Blob type =======
|
|
|
|
static luaV_Blob *
|
|
luaV_newblob(lua_State *L, blob_T *blo)
|
|
{
|
|
luaV_Blob *b = (luaV_Blob *) lua_newuserdata(L, sizeof(luaV_Blob));
|
|
*b = blo;
|
|
blo->bv_refcount++; // reference in Lua
|
|
luaV_setudata(L, blo); // cache[blo] = udata
|
|
luaV_getfield(L, LUAVIM_BLOB);
|
|
lua_setmetatable(L, -2);
|
|
return b;
|
|
}
|
|
|
|
luaV_pushtype(blob_T, blob, luaV_Blob)
|
|
luaV_type_tostring(blob, LUAVIM_BLOB)
|
|
|
|
static int
|
|
luaV_blob_gc(lua_State *L)
|
|
{
|
|
blob_T *b = luaV_unbox(L, luaV_Blob, 1);
|
|
blob_unref(b);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_blob_len(lua_State *L)
|
|
{
|
|
blob_T *b = luaV_unbox(L, luaV_Blob, 1);
|
|
lua_pushinteger(L, (int) blob_len(b));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_blob_index(lua_State *L)
|
|
{
|
|
blob_T *b = luaV_unbox(L, luaV_Blob, 1);
|
|
if (lua_isnumber(L, 2))
|
|
{
|
|
int idx = luaL_checkinteger(L, 2);
|
|
if (idx < blob_len(b))
|
|
lua_pushnumber(L, (lua_Number) blob_get(b, idx));
|
|
else
|
|
lua_pushnil(L);
|
|
}
|
|
else if (lua_isstring(L, 2))
|
|
{
|
|
const char *s = lua_tostring(L, 2);
|
|
if (strncmp(s, "add", 3) == 0)
|
|
{
|
|
lua_getmetatable(L, 1);
|
|
lua_getfield(L, -1, s);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_blob_newindex(lua_State *L)
|
|
{
|
|
blob_T *b = luaV_unbox(L, luaV_Blob, 1);
|
|
if (b->bv_lock)
|
|
luaL_error(L, "blob is locked");
|
|
if (lua_isnumber(L, 2))
|
|
{
|
|
long len = blob_len(b);
|
|
int idx = luaL_checkinteger(L, 2);
|
|
int val = luaL_checkinteger(L, 3);
|
|
if (idx < len || (idx == len && ga_grow(&b->bv_ga, 1) == OK))
|
|
{
|
|
blob_set(b, idx, (char_u) val);
|
|
if (idx == len)
|
|
++b->bv_ga.ga_len;
|
|
}
|
|
else
|
|
luaL_error(L, "index out of range");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_blob_add(lua_State *L)
|
|
{
|
|
luaV_Blob *blo = luaV_checkudata(L, 1, LUAVIM_BLOB);
|
|
blob_T *b = (blob_T *) luaV_checkcache(L, (void *) *blo);
|
|
if (b->bv_lock)
|
|
luaL_error(L, "blob is locked");
|
|
lua_settop(L, 2);
|
|
if (!lua_isstring(L, 2))
|
|
luaL_error(L, "string expected, got %s", luaL_typename(L, 2));
|
|
else
|
|
{
|
|
size_t i, l = 0;
|
|
const char *s = lua_tolstring(L, 2, &l);
|
|
|
|
if (ga_grow(&b->bv_ga, l) == OK)
|
|
for (i = 0; i < l; ++i)
|
|
ga_append(&b->bv_ga, s[i]);
|
|
}
|
|
lua_settop(L, 1);
|
|
return 1;
|
|
}
|
|
|
|
static const luaL_Reg luaV_Blob_mt[] = {
|
|
{"__tostring", luaV_blob_tostring},
|
|
{"__gc", luaV_blob_gc},
|
|
{"__len", luaV_blob_len},
|
|
{"__index", luaV_blob_index},
|
|
{"__newindex", luaV_blob_newindex},
|
|
{"add", luaV_blob_add},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
// ======= Funcref type =======
|
|
|
|
static luaV_Funcref *
|
|
luaV_newfuncref(lua_State *L, char_u *name)
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *)lua_newuserdata(L, sizeof(luaV_Funcref));
|
|
|
|
if (name != NULL)
|
|
{
|
|
func_ref(name);
|
|
f->name = vim_strsave(name);
|
|
}
|
|
f->self = NULL;
|
|
luaV_getfield(L, LUAVIM_FUNCREF);
|
|
lua_setmetatable(L, -2);
|
|
return f;
|
|
}
|
|
|
|
static luaV_Funcref *
|
|
luaV_pushfuncref(lua_State *L, char_u *name)
|
|
{
|
|
return luaV_newfuncref(L, name);
|
|
}
|
|
|
|
|
|
luaV_type_tostring(funcref, LUAVIM_FUNCREF)
|
|
|
|
static int
|
|
luaV_funcref_gc(lua_State *L)
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *) lua_touserdata(L, 1);
|
|
|
|
func_unref(f->name);
|
|
vim_free(f->name);
|
|
// NOTE: Don't call "dict_unref(f->self)", because the dict of "f->self"
|
|
// will be (or has been already) freed by Vim's garbage collection.
|
|
return 0;
|
|
}
|
|
|
|
// equivalent to string(funcref)
|
|
static int
|
|
luaV_funcref_len(lua_State *L)
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *) lua_touserdata(L, 1);
|
|
|
|
lua_pushstring(L, (const char *) f->name);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_funcref_call(lua_State *L)
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *) lua_touserdata(L, 1);
|
|
int i, n = lua_gettop(L) - 1; // #args
|
|
int status = FAIL;
|
|
typval_T args;
|
|
typval_T rettv;
|
|
|
|
args.v_type = VAR_LIST;
|
|
args.vval.v_list = list_alloc();
|
|
rettv.v_type = VAR_UNKNOWN; // as in clear_tv
|
|
if (args.vval.v_list != NULL)
|
|
{
|
|
typval_T v;
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
luaV_checktypval(L, i + 2, &v, "calling funcref");
|
|
list_append_tv(args.vval.v_list, &v);
|
|
clear_tv(&v);
|
|
}
|
|
status = func_call(f->name, &args, NULL, f->self, &rettv);
|
|
if (status == OK)
|
|
luaV_pushtypval(L, &rettv);
|
|
clear_tv(&args);
|
|
clear_tv(&rettv);
|
|
}
|
|
if (status != OK)
|
|
luaL_error(L, "cannot call funcref");
|
|
return 1;
|
|
}
|
|
|
|
static const luaL_Reg luaV_Funcref_mt[] = {
|
|
{"__tostring", luaV_funcref_tostring},
|
|
{"__gc", luaV_funcref_gc},
|
|
{"__len", luaV_funcref_len},
|
|
{"__call", luaV_funcref_call},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
// ======= Buffer type =======
|
|
|
|
luaV_newtype(buf_T, buffer, luaV_Buffer, LUAVIM_BUFFER)
|
|
luaV_pushtype(buf_T, buffer, luaV_Buffer)
|
|
luaV_type_tostring(buffer, LUAVIM_BUFFER)
|
|
|
|
static int
|
|
luaV_buffer_len(lua_State *L)
|
|
{
|
|
buf_T *b = (buf_T *) luaV_checkvalid(L, luaV_Buffer, 1);
|
|
lua_pushinteger(L, b->b_ml.ml_line_count);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_call(lua_State *L)
|
|
{
|
|
buf_T *b = (buf_T *) luaV_checkvalid(L, luaV_Buffer, 1);
|
|
lua_settop(L, 1);
|
|
set_curbuf(b, DOBUF_SPLIT);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_index(lua_State *L)
|
|
{
|
|
buf_T *b = (buf_T *) luaV_checkvalid(L, luaV_Buffer, 1);
|
|
linenr_T n = (linenr_T) lua_tointeger(L, 2);
|
|
if (n > 0 && n <= b->b_ml.ml_line_count)
|
|
luaV_pushline(L, b, n);
|
|
else if (lua_isstring(L, 2))
|
|
{
|
|
const char *s = lua_tostring(L, 2);
|
|
if (strncmp(s, "name", 4) == 0)
|
|
lua_pushstring(L, (b->b_sfname == NULL)
|
|
? "" : (char *) b->b_sfname);
|
|
else if (strncmp(s, "fname", 5) == 0)
|
|
lua_pushstring(L, (b->b_ffname == NULL)
|
|
? "" : (char *) b->b_ffname);
|
|
else if (strncmp(s, "number", 6) == 0)
|
|
lua_pushinteger(L, b->b_fnum);
|
|
// methods
|
|
else if (strncmp(s, "insert", 6) == 0
|
|
|| strncmp(s, "next", 4) == 0
|
|
|| strncmp(s, "previous", 8) == 0
|
|
|| strncmp(s, "isvalid", 7) == 0)
|
|
{
|
|
lua_getmetatable(L, 1);
|
|
lua_getfield(L, -1, s);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_newindex(lua_State *L)
|
|
{
|
|
buf_T *b = (buf_T *) luaV_checkvalid(L, luaV_Buffer, 1);
|
|
linenr_T n = (linenr_T) luaL_checkinteger(L, 2);
|
|
#ifdef HAVE_SANDBOX
|
|
luaV_checksandbox(L);
|
|
#endif
|
|
if (n < 1 || n > b->b_ml.ml_line_count)
|
|
luaL_error(L, "invalid line number");
|
|
if (lua_isnil(L, 3)) // delete line
|
|
{
|
|
buf_T *buf = curbuf;
|
|
curbuf = b;
|
|
if (u_savedel(n, 1L) == FAIL)
|
|
{
|
|
curbuf = buf;
|
|
luaL_error(L, "cannot save undo information");
|
|
}
|
|
else if (ml_delete(n, FALSE) == FAIL)
|
|
{
|
|
curbuf = buf;
|
|
luaL_error(L, "cannot delete line");
|
|
}
|
|
else
|
|
{
|
|
deleted_lines_mark(n, 1L);
|
|
if (b == curwin->w_buffer) // fix cursor in current window?
|
|
{
|
|
if (curwin->w_cursor.lnum >= n)
|
|
{
|
|
if (curwin->w_cursor.lnum > n)
|
|
{
|
|
curwin->w_cursor.lnum -= 1;
|
|
check_cursor_col();
|
|
}
|
|
else check_cursor();
|
|
changed_cline_bef_curs();
|
|
}
|
|
invalidate_botline();
|
|
}
|
|
}
|
|
curbuf = buf;
|
|
}
|
|
else if (lua_isstring(L, 3)) // update line
|
|
{
|
|
buf_T *buf = curbuf;
|
|
curbuf = b;
|
|
if (u_savesub(n) == FAIL)
|
|
{
|
|
curbuf = buf;
|
|
luaL_error(L, "cannot save undo information");
|
|
}
|
|
else if (ml_replace(n, luaV_toline(L, 3), TRUE) == FAIL)
|
|
{
|
|
curbuf = buf;
|
|
luaL_error(L, "cannot replace line");
|
|
}
|
|
else changed_bytes(n, 0);
|
|
curbuf = buf;
|
|
if (b == curwin->w_buffer)
|
|
check_cursor_col();
|
|
}
|
|
else
|
|
luaL_error(L, "wrong argument to change line");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_insert(lua_State *L)
|
|
{
|
|
luaV_Buffer *lb = luaV_checkudata(L, 1, LUAVIM_BUFFER);
|
|
buf_T *b = (buf_T *) luaV_checkcache(L, (void *) *lb);
|
|
linenr_T last = b->b_ml.ml_line_count;
|
|
linenr_T n = (linenr_T) luaL_optinteger(L, 3, last);
|
|
buf_T *buf;
|
|
luaL_checktype(L, 2, LUA_TSTRING);
|
|
#ifdef HAVE_SANDBOX
|
|
luaV_checksandbox(L);
|
|
#endif
|
|
// fix insertion line
|
|
if (n < 0) n = 0;
|
|
if (n > last) n = last;
|
|
// insert
|
|
buf = curbuf;
|
|
curbuf = b;
|
|
if (u_save(n, n + 1) == FAIL)
|
|
{
|
|
curbuf = buf;
|
|
luaL_error(L, "cannot save undo information");
|
|
}
|
|
else if (ml_append(n, luaV_toline(L, 2), 0, FALSE) == FAIL)
|
|
{
|
|
curbuf = buf;
|
|
luaL_error(L, "cannot insert line");
|
|
}
|
|
else
|
|
appended_lines_mark(n, 1L);
|
|
curbuf = buf;
|
|
update_screen(VALID);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_next(lua_State *L)
|
|
{
|
|
luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER);
|
|
buf_T *buf = (buf_T *) luaV_checkcache(L, (void *) *b);
|
|
luaV_pushbuffer(L, buf->b_next);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_previous(lua_State *L)
|
|
{
|
|
luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER);
|
|
buf_T *buf = (buf_T *) luaV_checkcache(L, (void *) *b);
|
|
luaV_pushbuffer(L, buf->b_prev);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer_isvalid(lua_State *L)
|
|
{
|
|
luaV_Buffer *b = luaV_checkudata(L, 1, LUAVIM_BUFFER);
|
|
luaV_getudata(L, *b);
|
|
lua_pushboolean(L, !lua_isnil(L, -1));
|
|
return 1;
|
|
}
|
|
|
|
static const luaL_Reg luaV_Buffer_mt[] = {
|
|
{"__tostring", luaV_buffer_tostring},
|
|
{"__len", luaV_buffer_len},
|
|
{"__call", luaV_buffer_call},
|
|
{"__index", luaV_buffer_index},
|
|
{"__newindex", luaV_buffer_newindex},
|
|
{"insert", luaV_buffer_insert},
|
|
{"next", luaV_buffer_next},
|
|
{"previous", luaV_buffer_previous},
|
|
{"isvalid", luaV_buffer_isvalid},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
// ======= Window type =======
|
|
|
|
luaV_newtype(win_T, window, luaV_Window, LUAVIM_WINDOW)
|
|
luaV_pushtype(win_T, window, luaV_Window)
|
|
luaV_type_tostring(window, LUAVIM_WINDOW)
|
|
|
|
static int
|
|
luaV_window_call(lua_State *L)
|
|
{
|
|
win_T *w = (win_T *) luaV_checkvalid(L, luaV_Window, 1);
|
|
lua_settop(L, 1);
|
|
win_goto(w);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_window_index(lua_State *L)
|
|
{
|
|
win_T *w = (win_T *) luaV_checkvalid(L, luaV_Window, 1);
|
|
const char *s = luaL_checkstring(L, 2);
|
|
if (strncmp(s, "buffer", 6) == 0)
|
|
luaV_pushbuffer(L, w->w_buffer);
|
|
else if (strncmp(s, "line", 4) == 0)
|
|
lua_pushinteger(L, w->w_cursor.lnum);
|
|
else if (strncmp(s, "col", 3) == 0)
|
|
lua_pushinteger(L, w->w_cursor.col + 1);
|
|
else if (strncmp(s, "width", 5) == 0)
|
|
lua_pushinteger(L, w->w_width);
|
|
else if (strncmp(s, "height", 6) == 0)
|
|
lua_pushinteger(L, w->w_height);
|
|
// methods
|
|
else if (strncmp(s, "next", 4) == 0
|
|
|| strncmp(s, "previous", 8) == 0
|
|
|| strncmp(s, "isvalid", 7) == 0)
|
|
{
|
|
lua_getmetatable(L, 1);
|
|
lua_getfield(L, -1, s);
|
|
}
|
|
else
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_window_newindex(lua_State *L)
|
|
{
|
|
win_T *w = (win_T *) luaV_checkvalid(L, luaV_Window, 1);
|
|
const char *s = luaL_checkstring(L, 2);
|
|
int v = luaL_checkinteger(L, 3);
|
|
if (strncmp(s, "line", 4) == 0)
|
|
{
|
|
#ifdef HAVE_SANDBOX
|
|
luaV_checksandbox(L);
|
|
#endif
|
|
if (v < 1 || v > w->w_buffer->b_ml.ml_line_count)
|
|
luaL_error(L, "line out of range");
|
|
w->w_cursor.lnum = v;
|
|
update_screen(VALID);
|
|
}
|
|
else if (strncmp(s, "col", 3) == 0)
|
|
{
|
|
#ifdef HAVE_SANDBOX
|
|
luaV_checksandbox(L);
|
|
#endif
|
|
w->w_cursor.col = v - 1;
|
|
w->w_set_curswant = TRUE;
|
|
update_screen(VALID);
|
|
}
|
|
else if (strncmp(s, "width", 5) == 0)
|
|
{
|
|
win_T *win = curwin;
|
|
#ifdef FEAT_GUI
|
|
need_mouse_correct = TRUE;
|
|
#endif
|
|
curwin = w;
|
|
win_setwidth(v);
|
|
curwin = win;
|
|
}
|
|
else if (strncmp(s, "height", 6) == 0)
|
|
{
|
|
win_T *win = curwin;
|
|
#ifdef FEAT_GUI
|
|
need_mouse_correct = TRUE;
|
|
#endif
|
|
curwin = w;
|
|
win_setheight(v);
|
|
curwin = win;
|
|
}
|
|
else
|
|
luaL_error(L, "invalid window property: `%s'", s);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_window_next(lua_State *L)
|
|
{
|
|
luaV_Window *w = luaV_checkudata(L, 1, LUAVIM_WINDOW);
|
|
win_T *win = (win_T *) luaV_checkcache(L, (void *) *w);
|
|
luaV_pushwindow(L, win->w_next);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_window_previous(lua_State *L)
|
|
{
|
|
luaV_Window *w = luaV_checkudata(L, 1, LUAVIM_WINDOW);
|
|
win_T *win = (win_T *) luaV_checkcache(L, (void *) *w);
|
|
luaV_pushwindow(L, win->w_prev);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_window_isvalid(lua_State *L)
|
|
{
|
|
luaV_Window *w = luaV_checkudata(L, 1, LUAVIM_WINDOW);
|
|
luaV_getudata(L, *w);
|
|
lua_pushboolean(L, !lua_isnil(L, -1));
|
|
return 1;
|
|
}
|
|
|
|
static const luaL_Reg luaV_Window_mt[] = {
|
|
{"__tostring", luaV_window_tostring},
|
|
{"__call", luaV_window_call},
|
|
{"__index", luaV_window_index},
|
|
{"__newindex", luaV_window_newindex},
|
|
{"next", luaV_window_next},
|
|
{"previous", luaV_window_previous},
|
|
{"isvalid", luaV_window_isvalid},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
// ======= Vim module =======
|
|
|
|
static int
|
|
luaV_print(lua_State *L)
|
|
{
|
|
int i, n = lua_gettop(L); // nargs
|
|
const char *s;
|
|
size_t l;
|
|
luaL_Buffer b;
|
|
luaL_buffinit(L, &b);
|
|
lua_getglobal(L, "tostring");
|
|
for (i = 1; i <= n; i++)
|
|
{
|
|
lua_pushvalue(L, -1); // tostring
|
|
lua_pushvalue(L, i); // arg
|
|
lua_call(L, 1, 1);
|
|
s = lua_tolstring(L, -1, &l);
|
|
if (s == NULL)
|
|
return luaL_error(L, "cannot convert to string");
|
|
if (i > 1) luaL_addchar(&b, ' '); // use space instead of tab
|
|
luaV_addlstring(&b, s, l, 0);
|
|
lua_pop(L, 1);
|
|
}
|
|
luaL_pushresult(&b);
|
|
if (!got_int)
|
|
luaV_msg(L);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_debug(lua_State *L)
|
|
{
|
|
lua_settop(L, 0);
|
|
lua_getglobal(L, "vim");
|
|
lua_getfield(L, -1, "eval");
|
|
lua_remove(L, -2); // vim.eval at position 1
|
|
for (;;)
|
|
{
|
|
const char *input;
|
|
size_t l;
|
|
lua_pushvalue(L, 1); // vim.eval
|
|
lua_pushliteral(L, "input('lua_debug> ')");
|
|
lua_call(L, 1, 1); // return string
|
|
input = lua_tolstring(L, -1, &l);
|
|
if (l == 0 || strcmp(input, "cont") == 0)
|
|
return 0;
|
|
msg_putchar('\n'); // avoid outputting on input line
|
|
if (luaL_loadbuffer(L, input, l, "=(debug command)")
|
|
|| lua_pcall(L, 0, 0, 0))
|
|
luaV_emsg(L);
|
|
lua_settop(L, 1); // remove eventual returns, but keep vim.eval
|
|
}
|
|
}
|
|
|
|
static int
|
|
luaV_command(lua_State *L)
|
|
{
|
|
do_cmdline_cmd((char_u *) luaL_checkstring(L, 1));
|
|
update_screen(VALID);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_eval(lua_State *L)
|
|
{
|
|
typval_T *tv = eval_expr((char_u *) luaL_checkstring(L, 1), NULL);
|
|
if (tv == NULL) luaL_error(L, "invalid expression");
|
|
luaV_pushtypval(L, tv);
|
|
free_tv(tv);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_beep(lua_State *L UNUSED)
|
|
{
|
|
vim_beep(BO_LANG);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_line(lua_State *L)
|
|
{
|
|
luaV_pushline(L, curbuf, curwin->w_cursor.lnum);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_list(lua_State *L)
|
|
{
|
|
list_T *l;
|
|
int initarg = !lua_isnoneornil(L, 1);
|
|
|
|
if (initarg && lua_type(L, 1) != LUA_TTABLE)
|
|
luaL_error(L, "table expected, got %s", luaL_typename(L, 1));
|
|
l = list_alloc();
|
|
if (l == NULL)
|
|
lua_pushnil(L);
|
|
else
|
|
{
|
|
luaV_newlist(L, l);
|
|
if (initarg) // traverse table to init list
|
|
{
|
|
int notnil, i = 0;
|
|
typval_T v;
|
|
do
|
|
{
|
|
lua_rawgeti(L, 1, ++i);
|
|
notnil = !lua_isnil(L, -1);
|
|
if (notnil)
|
|
{
|
|
luaV_checktypval(L, -1, &v, "vim.list");
|
|
list_append_tv(l, &v);
|
|
clear_tv(&v);
|
|
}
|
|
lua_pop(L, 1); // value
|
|
} while (notnil);
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_dict(lua_State *L)
|
|
{
|
|
dict_T *d;
|
|
int initarg = !lua_isnoneornil(L, 1);
|
|
|
|
if (initarg && lua_type(L, 1) != LUA_TTABLE)
|
|
luaL_error(L, "table expected, got %s", luaL_typename(L, 1));
|
|
d = dict_alloc();
|
|
if (d == NULL)
|
|
lua_pushnil(L);
|
|
else
|
|
{
|
|
luaV_newdict(L, d);
|
|
if (initarg) // traverse table to init dict
|
|
{
|
|
lua_pushnil(L);
|
|
while (lua_next(L, 1))
|
|
{
|
|
char_u *key;
|
|
dictitem_T *di;
|
|
typval_T v;
|
|
|
|
lua_pushvalue(L, -2); // dup key in case it's a number
|
|
key = (char_u *) lua_tostring(L, -1);
|
|
if (key == NULL)
|
|
{
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
if (*key == NUL)
|
|
luaL_error(L, "table has empty key");
|
|
luaV_checktypval(L, -2, &v, "vim.dict"); // value
|
|
di = dictitem_alloc(key);
|
|
if (di == NULL || dict_add(d, di) == FAIL)
|
|
{
|
|
vim_free(di);
|
|
lua_pushnil(L);
|
|
return 1;
|
|
}
|
|
copy_tv(&v, &di->di_tv);
|
|
clear_tv(&v);
|
|
lua_pop(L, 2); // key copy and value
|
|
}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_blob(lua_State *L)
|
|
{
|
|
blob_T *b;
|
|
int initarg = !lua_isnoneornil(L, 1);
|
|
|
|
if (initarg && !lua_isstring(L, 1))
|
|
luaL_error(L, "string expected, got %s", luaL_typename(L, 1));
|
|
b = blob_alloc();
|
|
if (b == NULL)
|
|
lua_pushnil(L);
|
|
else
|
|
{
|
|
luaV_newblob(L, b);
|
|
if (initarg)
|
|
{
|
|
size_t i, l = 0;
|
|
const char *s = lua_tolstring(L, 1, &l);
|
|
|
|
if (ga_grow(&b->bv_ga, l) == OK)
|
|
for (i = 0; i < l; ++i)
|
|
ga_append(&b->bv_ga, s[i]);
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_funcref(lua_State *L)
|
|
{
|
|
const char *name = luaL_checkstring(L, 1);
|
|
// note: not checking if function exists (needs function_exists)
|
|
if (name == NULL || *name == NUL || VIM_ISDIGIT(*name))
|
|
luaL_error(L, "invalid function name: %s", name);
|
|
luaV_newfuncref(L, (char_u *) name);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_buffer(lua_State *L)
|
|
{
|
|
buf_T *buf;
|
|
if (lua_isstring(L, 1)) // get by number or name?
|
|
{
|
|
if (lua_isnumber(L, 1)) // by number?
|
|
{
|
|
int n = lua_tointeger(L, 1);
|
|
FOR_ALL_BUFFERS(buf)
|
|
if (buf->b_fnum == n) break;
|
|
}
|
|
else // by name
|
|
{
|
|
size_t l;
|
|
const char *s = lua_tolstring(L, 1, &l);
|
|
FOR_ALL_BUFFERS(buf)
|
|
{
|
|
if (buf->b_ffname == NULL || buf->b_sfname == NULL)
|
|
{
|
|
if (l == 0) break;
|
|
}
|
|
else if (strncmp(s, (char *)buf->b_ffname, l) == 0
|
|
|| strncmp(s, (char *)buf->b_sfname, l) == 0)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
buf = (lua_toboolean(L, 1)) ? firstbuf : curbuf; // first buffer?
|
|
luaV_pushbuffer(L, buf);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_window(lua_State *L)
|
|
{
|
|
win_T *win;
|
|
if (lua_isnumber(L, 1)) // get by number?
|
|
{
|
|
int n = lua_tointeger(L, 1);
|
|
for (win = firstwin; win != NULL; win = win->w_next, n--)
|
|
if (n == 1) break;
|
|
}
|
|
else
|
|
win = (lua_toboolean(L, 1)) ? firstwin : curwin; // first window?
|
|
luaV_pushwindow(L, win);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_open(lua_State *L)
|
|
{
|
|
char_u *s = NULL;
|
|
#ifdef HAVE_SANDBOX
|
|
luaV_checksandbox(L);
|
|
#endif
|
|
if (lua_isstring(L, 1)) s = (char_u *) lua_tostring(L, 1);
|
|
luaV_pushbuffer(L, buflist_new(s, NULL, 1L, BLN_LISTED));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaV_type(lua_State *L)
|
|
{
|
|
luaL_checkany(L, 1);
|
|
if (lua_type(L, 1) == LUA_TUSERDATA) // check vim udata?
|
|
{
|
|
lua_settop(L, 1);
|
|
if (lua_getmetatable(L, 1))
|
|
{
|
|
luaV_getfield(L, LUAVIM_LIST);
|
|
if (lua_rawequal(L, -1, 2))
|
|
{
|
|
lua_pushstring(L, "list");
|
|
return 1;
|
|
}
|
|
luaV_getfield(L, LUAVIM_DICT);
|
|
if (lua_rawequal(L, -1, 2))
|
|
{
|
|
lua_pushstring(L, "dict");
|
|
return 1;
|
|
}
|
|
luaV_getfield(L, LUAVIM_BLOB);
|
|
if (lua_rawequal(L, -1, 2))
|
|
{
|
|
lua_pushstring(L, "blob");
|
|
return 1;
|
|
}
|
|
luaV_getfield(L, LUAVIM_FUNCREF);
|
|
if (lua_rawequal(L, -1, 2))
|
|
{
|
|
lua_pushstring(L, "funcref");
|
|
return 1;
|
|
}
|
|
luaV_getfield(L, LUAVIM_BUFFER);
|
|
if (lua_rawequal(L, -1, 2))
|
|
{
|
|
lua_pushstring(L, "buffer");
|
|
return 1;
|
|
}
|
|
luaV_getfield(L, LUAVIM_WINDOW);
|
|
if (lua_rawequal(L, -1, 2))
|
|
{
|
|
lua_pushstring(L, "window");
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
lua_pushstring(L, luaL_typename(L, 1)); // fallback
|
|
return 1;
|
|
}
|
|
|
|
static const luaL_Reg luaV_module[] = {
|
|
{"command", luaV_command},
|
|
{"eval", luaV_eval},
|
|
{"beep", luaV_beep},
|
|
{"line", luaV_line},
|
|
{"list", luaV_list},
|
|
{"dict", luaV_dict},
|
|
{"blob", luaV_blob},
|
|
{"funcref", luaV_funcref},
|
|
{"buffer", luaV_buffer},
|
|
{"window", luaV_window},
|
|
{"open", luaV_open},
|
|
{"type", luaV_type},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
/*
|
|
* for freeing list, dict, buffer and window objects; lightuserdata as arg
|
|
*/
|
|
static int
|
|
luaV_free(lua_State *L)
|
|
{
|
|
lua_pushnil(L);
|
|
luaV_setudata(L, lua_touserdata(L, 1));
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_luaeval(lua_State *L)
|
|
{
|
|
luaL_Buffer b;
|
|
size_t l;
|
|
const char *str = lua_tolstring(L, 1, &l);
|
|
typval_T *arg = (typval_T *) lua_touserdata(L, 2);
|
|
typval_T *rettv = (typval_T *) lua_touserdata(L, 3);
|
|
luaL_buffinit(L, &b);
|
|
luaL_addlstring(&b, LUAVIM_EVALHEADER, sizeof(LUAVIM_EVALHEADER) - 1);
|
|
luaL_addlstring(&b, str, l);
|
|
luaL_pushresult(&b);
|
|
str = lua_tolstring(L, -1, &l);
|
|
if (luaL_loadbuffer(L, str, l, LUAVIM_EVALNAME)) // compile error?
|
|
{
|
|
luaV_emsg(L);
|
|
return 0;
|
|
}
|
|
luaV_pushtypval(L, arg);
|
|
if (lua_pcall(L, 1, 1, 0)) // running error?
|
|
{
|
|
luaV_emsg(L);
|
|
return 0;
|
|
}
|
|
if (luaV_totypval(L, -1, rettv) == FAIL)
|
|
emsg("luaeval: cannot convert value");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
luaV_setref(lua_State *L)
|
|
{
|
|
int copyID = lua_tointeger(L, 1);
|
|
int abort = FALSE;
|
|
|
|
luaV_getfield(L, LUAVIM_LIST);
|
|
luaV_getfield(L, LUAVIM_DICT);
|
|
luaV_getfield(L, LUAVIM_FUNCREF);
|
|
lua_pushnil(L);
|
|
// traverse cache table
|
|
while (!abort && lua_next(L, lua_upvalueindex(1)) != 0)
|
|
{
|
|
lua_getmetatable(L, -1);
|
|
if (lua_rawequal(L, -1, 2)) // list?
|
|
{
|
|
list_T *l = (list_T *)lua_touserdata(L, 5); // key
|
|
|
|
abort = set_ref_in_list(l, copyID);
|
|
}
|
|
else if (lua_rawequal(L, -1, 3)) // dict?
|
|
{
|
|
dict_T *d = (dict_T *)lua_touserdata(L, 5); // key
|
|
|
|
abort = set_ref_in_dict(d, copyID);
|
|
}
|
|
else if (lua_rawequal(L, -1, 4)) // funcref?
|
|
{
|
|
luaV_Funcref *f = (luaV_Funcref *)lua_touserdata(L, 5); // key
|
|
|
|
abort = set_ref_in_dict(f->self, copyID);
|
|
}
|
|
lua_pop(L, 2); // metatable and value
|
|
}
|
|
lua_pushinteger(L, abort);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
luaopen_vim(lua_State *L)
|
|
{
|
|
// set cache table
|
|
lua_newtable(L);
|
|
lua_newtable(L);
|
|
lua_pushstring(L, "v");
|
|
lua_setfield(L, -2, "__mode");
|
|
lua_setmetatable(L, -2); // cache is weak-valued
|
|
// print
|
|
lua_pushcfunction(L, luaV_print);
|
|
lua_setglobal(L, "print");
|
|
// debug.debug
|
|
lua_getglobal(L, "debug");
|
|
lua_pushcfunction(L, luaV_debug);
|
|
lua_setfield(L, -2, "debug");
|
|
lua_pop(L, 1);
|
|
// free
|
|
lua_pushlightuserdata(L, (void *) LUAVIM_FREE);
|
|
lua_pushvalue(L, 1); // cache table
|
|
lua_pushcclosure(L, luaV_free, 1);
|
|
lua_rawset(L, LUA_REGISTRYINDEX);
|
|
// luaeval
|
|
lua_pushlightuserdata(L, (void *) LUAVIM_LUAEVAL);
|
|
lua_pushvalue(L, 1); // cache table
|
|
lua_pushcclosure(L, luaV_luaeval, 1);
|
|
lua_rawset(L, LUA_REGISTRYINDEX);
|
|
// setref
|
|
lua_pushlightuserdata(L, (void *) LUAVIM_SETREF);
|
|
lua_pushvalue(L, 1); // cache table
|
|
lua_pushcclosure(L, luaV_setref, 1);
|
|
lua_rawset(L, LUA_REGISTRYINDEX);
|
|
// register
|
|
luaV_newmetatable(L, LUAVIM_LIST);
|
|
lua_pushvalue(L, 1);
|
|
luaV_openlib(L, luaV_List_mt, 1);
|
|
luaV_newmetatable(L, LUAVIM_DICT);
|
|
lua_pushvalue(L, 1);
|
|
luaV_openlib(L, luaV_Dict_mt, 1);
|
|
luaV_newmetatable(L, LUAVIM_BLOB);
|
|
lua_pushvalue(L, 1);
|
|
luaV_openlib(L, luaV_Blob_mt, 1);
|
|
luaV_newmetatable(L, LUAVIM_FUNCREF);
|
|
lua_pushvalue(L, 1);
|
|
luaV_openlib(L, luaV_Funcref_mt, 1);
|
|
luaV_newmetatable(L, LUAVIM_BUFFER);
|
|
lua_pushvalue(L, 1); // cache table
|
|
luaV_openlib(L, luaV_Buffer_mt, 1);
|
|
luaV_newmetatable(L, LUAVIM_WINDOW);
|
|
lua_pushvalue(L, 1); // cache table
|
|
luaV_openlib(L, luaV_Window_mt, 1);
|
|
lua_newtable(L); // vim table
|
|
lua_pushvalue(L, 1); // cache table
|
|
luaV_openlib(L, luaV_module, 1);
|
|
lua_setglobal(L, LUAVIM_NAME);
|
|
return 0;
|
|
}
|
|
|
|
static lua_State *
|
|
luaV_newstate(void)
|
|
{
|
|
lua_State *L = luaL_newstate();
|
|
luaL_openlibs(L); // core libs
|
|
lua_pushcfunction(L, luaopen_vim); // vim
|
|
lua_call(L, 0, 0);
|
|
return L;
|
|
}
|
|
|
|
static void
|
|
luaV_setrange(lua_State *L, int line1, int line2)
|
|
{
|
|
lua_getglobal(L, LUAVIM_NAME);
|
|
lua_pushinteger(L, line1);
|
|
lua_setfield(L, -2, "firstline");
|
|
lua_pushinteger(L, line2);
|
|
lua_setfield(L, -2, "lastline");
|
|
lua_pop(L, 1); // vim table
|
|
}
|
|
|
|
|
|
// ======= Interface =======
|
|
|
|
static lua_State *L = NULL;
|
|
|
|
static int
|
|
lua_isopen(void)
|
|
{
|
|
return L != NULL;
|
|
}
|
|
|
|
static int
|
|
lua_init(void)
|
|
{
|
|
if (!lua_isopen())
|
|
{
|
|
#ifdef DYNAMIC_LUA
|
|
if (!lua_enabled(TRUE))
|
|
{
|
|
emsg(_("Lua library cannot be loaded."));
|
|
return FAIL;
|
|
}
|
|
#endif
|
|
L = luaV_newstate();
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
void
|
|
lua_end(void)
|
|
{
|
|
if (lua_isopen())
|
|
{
|
|
lua_close(L);
|
|
L = NULL;
|
|
#ifdef DYNAMIC_LUA
|
|
end_dynamic_lua();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ex commands
|
|
*/
|
|
void
|
|
ex_lua(exarg_T *eap)
|
|
{
|
|
char *script;
|
|
if (lua_init() == FAIL) return;
|
|
script = (char *) script_get(eap, eap->arg);
|
|
if (!eap->skip)
|
|
{
|
|
char *s = (script) ? script : (char *) eap->arg;
|
|
luaV_setrange(L, eap->line1, eap->line2);
|
|
if (luaL_loadbuffer(L, s, strlen(s), LUAVIM_CHUNKNAME)
|
|
|| lua_pcall(L, 0, 0, 0))
|
|
luaV_emsg(L);
|
|
}
|
|
if (script != NULL) vim_free(script);
|
|
}
|
|
|
|
void
|
|
ex_luado(exarg_T *eap)
|
|
{
|
|
linenr_T l;
|
|
const char *s = (const char *) eap->arg;
|
|
luaL_Buffer b;
|
|
size_t len;
|
|
buf_T *was_curbuf = curbuf;
|
|
|
|
if (lua_init() == FAIL) return;
|
|
if (u_save(eap->line1 - 1, eap->line2 + 1) == FAIL)
|
|
{
|
|
emsg(_("cannot save undo information"));
|
|
return;
|
|
}
|
|
luaV_setrange(L, eap->line1, eap->line2);
|
|
luaL_buffinit(L, &b);
|
|
luaL_addlstring(&b, "return function(line, linenr) ", 30); // header
|
|
luaL_addlstring(&b, s, strlen(s));
|
|
luaL_addlstring(&b, " end", 4); // footer
|
|
luaL_pushresult(&b);
|
|
s = lua_tolstring(L, -1, &len);
|
|
if (luaL_loadbuffer(L, s, len, LUAVIM_CHUNKNAME))
|
|
{
|
|
luaV_emsg(L);
|
|
lua_pop(L, 1); // function body
|
|
return;
|
|
}
|
|
lua_call(L, 0, 1);
|
|
lua_replace(L, -2); // function -> body
|
|
for (l = eap->line1; l <= eap->line2; l++)
|
|
{
|
|
// Check the line number, the command my have deleted lines.
|
|
if (l > curbuf->b_ml.ml_line_count)
|
|
break;
|
|
|
|
lua_pushvalue(L, -1); // function
|
|
luaV_pushline(L, curbuf, l); // current line as arg
|
|
lua_pushinteger(L, l); // current line number as arg
|
|
if (lua_pcall(L, 2, 1, 0))
|
|
{
|
|
luaV_emsg(L);
|
|
break;
|
|
}
|
|
// Catch the command switching to another buffer.
|
|
if (curbuf != was_curbuf)
|
|
break;
|
|
if (lua_isstring(L, -1)) // update line?
|
|
{
|
|
#ifdef HAVE_SANDBOX
|
|
luaV_checksandbox(L);
|
|
#endif
|
|
ml_replace(l, luaV_toline(L, -1), TRUE);
|
|
changed_bytes(l, 0);
|
|
lua_pop(L, 1); // result from luaV_toline
|
|
}
|
|
lua_pop(L, 1); // line
|
|
}
|
|
lua_pop(L, 1); // function
|
|
check_cursor();
|
|
update_screen(NOT_VALID);
|
|
}
|
|
|
|
void
|
|
ex_luafile(exarg_T *eap)
|
|
{
|
|
if (lua_init() == FAIL)
|
|
return;
|
|
if (!eap->skip)
|
|
{
|
|
luaV_setrange(L, eap->line1, eap->line2);
|
|
if (luaL_loadfile(L, (char *) eap->arg) || lua_pcall(L, 0, 0, 0))
|
|
luaV_emsg(L);
|
|
}
|
|
}
|
|
|
|
#define luaV_freetype(typ,tname) \
|
|
void \
|
|
lua_##tname##_free(typ *o) \
|
|
{ \
|
|
if (!lua_isopen()) return; \
|
|
luaV_getfield(L, LUAVIM_FREE); \
|
|
lua_pushlightuserdata(L, (void *) o); \
|
|
lua_call(L, 1, 0); \
|
|
}
|
|
|
|
luaV_freetype(buf_T, buffer)
|
|
luaV_freetype(win_T, window)
|
|
|
|
void
|
|
do_luaeval(char_u *str, typval_T *arg, typval_T *rettv)
|
|
{
|
|
lua_init();
|
|
luaV_getfield(L, LUAVIM_LUAEVAL);
|
|
lua_pushstring(L, (char *) str);
|
|
lua_pushlightuserdata(L, (void *) arg);
|
|
lua_pushlightuserdata(L, (void *) rettv);
|
|
lua_call(L, 3, 0);
|
|
}
|
|
|
|
int
|
|
set_ref_in_lua(int copyID)
|
|
{
|
|
int aborted = 0;
|
|
|
|
if (lua_isopen())
|
|
{
|
|
luaV_getfield(L, LUAVIM_SETREF);
|
|
// call the function with 1 arg, getting 1 result back
|
|
lua_pushinteger(L, copyID);
|
|
lua_call(L, 1, 1);
|
|
// get the result
|
|
aborted = lua_tointeger(L, -1);
|
|
// pop result off the stack
|
|
lua_pop(L, 1);
|
|
}
|
|
return aborted;
|
|
}
|
|
|
|
#endif
|