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Actually define __ipairs on LuaAssFile

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Thomas Goyne 2013-05-01 20:51:17 -07:00
parent 995e0d85e9
commit b2f5a993d9
2 changed files with 25 additions and 0 deletions
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2
aegisub/src/auto4_lua.h
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@ -93,6 +93,8 @@ namespace Automation4 {
void ObjectAppend(lua_State *L);
void ObjectInsert(lua_State *L);
void ObjectGarbageCollect(lua_State *L);
int ObjectIPairs(lua_State *L);
int IterNext(lua_State *L);
int LuaParseKaraokeData(lua_State *L);

23
aegisub/src/auto4_lua_assfile.cpp
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@ -512,6 +512,28 @@ namespace Automation4 {
LOG_D("automation/lua") << "Garbage collected LuaAssFile";
}
int LuaAssFile::ObjectIPairs(lua_State *L)
{
lua_pushvalue(L, lua_upvalueindex(1)); // push 'this' as userdata
lua_pushcclosure(L, closure_wrapper<&LuaAssFile::IterNext>, 1);
lua_pushnil(L);
push_value(L, 0);
return 3;
}
int LuaAssFile::IterNext(lua_State *L)
{
int i = luaL_checkint(L, 2);
if (i >= (int)lines.size()) {
lua_pushnil(L);
return 1;
}
push_value(L, i + 1);
AssEntryToLua(L, lines[i]);
return 2;
}
int LuaAssFile::LuaParseKaraokeData(lua_State *L)
{
agi::scoped_ptr<AssEntry> e(LuaToAssEntry(L));
@ -619,6 +641,7 @@ namespace Automation4 {
set_field(L, "__newindex", closure_wrapper_v<&LuaAssFile::ObjectIndexWrite>);
set_field(L, "__len", closure_wrapper<&LuaAssFile::ObjectGetLen>);
set_field(L, "__gc", closure_wrapper_v<&LuaAssFile::ObjectGarbageCollect>);
set_field(L, "__ipairs", closure_wrapper<&LuaAssFile::ObjectIPairs>);
lua_setmetatable(L, -2);
// register misc functions