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Modernize lua read (part 2 & 3): C++ templating assurance (#7410)

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* Modernize lua read (part 2 & 3): C++ templating assurance

Implement the boolean reader
Implement the string reader
Also remove unused & unimplemented script_error_handler
Add a reader with default value
This commit is contained in:
Loïc Blot 2018-06-30 17:11:38 +02:00 • committed by GitHub
parent 227c71eb76
commit eef62c82a2
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GPG key ID: 4AEE18F83AFDEB23
35 changed files with 247 additions and 154 deletions
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21
src/script/lua_api/l_base.cpp
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@ -63,8 +63,8 @@ GUIEngine *ModApiBase::getGuiEngine(lua_State *L)
std::string ModApiBase::getCurrentModPath(lua_State *L)
{
lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
const char *current_mod_name = lua_tostring(L, -1);
if (!current_mod_name)
std::string current_mod_name = readParam<std::string>(L, -1, "");
if (current_mod_name.empty())
return ".";
const ModSpec *mod = getServer(L)->getModSpec(current_mod_name);
@ -85,20 +85,3 @@ bool ModApiBase::registerFunction(lua_State *L, const char *name,
return true;
}
bool ModApiBase::isNaN(lua_State *L, int idx)
{
return lua_type(L, idx) == LUA_TNUMBER && std::isnan(lua_tonumber(L, idx));
}
/*
* Read template functions
*/
template<>
float ModApiBase::readParam(lua_State *L, int index)
{
if (isNaN(L, index))
throw LuaError("NaN value is not allowed.");
return (float) luaL_checknumber(L, index);
}