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| author | jacqueline <me@jacqueline.id.au> | 2024-02-29 12:10:44 +1100 |
|---|---|---|
| committer | jacqueline <me@jacqueline.id.au> | 2024-02-29 12:10:44 +1100 |
| commit | 7d3ddac0eaea207aee187729e3beec95d8d201dc (patch) | |
| tree | 4b4545e725697663a4768630c48f49e8bbb8cf59 /src/lua/property.cpp | |
| parent | d41f9f703375171d5766840c9edec32ff47bb25d (diff) | |
| parent | 9fca08f8434a05e1fe93a1c4f8133f0e7fc118bf (diff) | |
| download | tangara-fw-7d3ddac0eaea207aee187729e3beec95d8d201dc.tar.gz | |
Merge branch 'main' into seek-support
Diffstat (limited to 'src/lua/property.cpp')
| -rw-r--r-- | src/lua/property.cpp | 78 |
1 files changed, 51 insertions, 27 deletions
diff --git a/src/lua/property.cpp b/src/lua/property.cpp index 5357ccc5..f721f9ce 100644 --- a/src/lua/property.cpp +++ b/src/lua/property.cpp @@ -10,10 +10,12 @@ #include <cmath> #include <memory> #include <memory_resource> +#include <sstream> #include <string> #include <variant> #include "bluetooth_types.hpp" +#include "lauxlib.h" #include "lua.h" #include "lua.hpp" #include "lua_thread.hpp" @@ -76,10 +78,30 @@ static auto property_bind(lua_State* state) -> int { return 1; } -static const struct luaL_Reg kPropertyBindingFuncs[] = {{"get", property_get}, - {"set", property_set}, - {"bind", property_bind}, - {NULL, NULL}}; +static auto property_tostring(lua_State* state) -> int { + Property* p = check_property(state); + p->PushValue(*state); + + std::stringstream str{}; + str << "property { " << luaL_tolstring(state, -1, NULL); + if (!p->IsTwoWay()) { + str << ", read-only"; + } + str << " }"; + + lua_settop(state, 0); + + std::string res = str.str(); + lua_pushlstring(state, res.data(), res.size()); + return 1; +} + +static const struct luaL_Reg kPropertyBindingFuncs[] = { + {"get", property_get}, + {"set", property_set}, + {"bind", property_bind}, + {"__tostring", property_tostring}, + {NULL, NULL}}; static auto generic_function_cb(lua_State* state) -> int { lua_pushstring(state, kBinderKey); @@ -98,45 +120,47 @@ static auto generic_function_cb(lua_State* state) -> int { return std::invoke(fn, state); } -PropertyBindings::PropertyBindings(lua_State& s) { - lua_pushstring(&s, kBinderKey); - lua_pushlightuserdata(&s, this); - lua_settable(&s, LUA_REGISTRYINDEX); +PropertyBindings::PropertyBindings() : functions_(&memory::kSpiRamResource) {} + +auto PropertyBindings::install(lua_State* L) -> void { + lua_pushstring(L, kBinderKey); + lua_pushlightuserdata(L, this); + lua_settable(L, LUA_REGISTRYINDEX); // Create the metatable responsible for the Property API. - luaL_newmetatable(&s, kPropertyMetatable); + luaL_newmetatable(L, kPropertyMetatable); - lua_pushliteral(&s, "__index"); - lua_pushvalue(&s, -2); - lua_settable(&s, -3); // metatable.__index = metatable + lua_pushliteral(L, "__index"); + lua_pushvalue(L, -2); + lua_settable(L, -3); // metatable.__index = metatable // Add our binding funcs (get, set, bind) to the metatable. - luaL_setfuncs(&s, kPropertyBindingFuncs, 0); + luaL_setfuncs(L, kPropertyBindingFuncs, 0); // We've finished setting up the metatable, so pop it. - lua_pop(&s, 1); + lua_pop(L, 1); // Create a weak table in the registry to hold live bindings. - lua_pushstring(&s, kBindingsTable); - lua_newtable(&s); // bindings = {} + lua_pushstring(L, kBindingsTable); + lua_newtable(L); // bindings = {} // Metatable for the weak table. Values are weak. - lua_newtable(&s); // meta = {} - lua_pushliteral(&s, "__mode"); - lua_pushliteral(&s, "v"); - lua_settable(&s, -3); // meta.__mode='v' - lua_setmetatable(&s, -2); // setmetatable(bindings, meta) + lua_newtable(L); // meta = {} + lua_pushliteral(L, "__mode"); + lua_pushliteral(L, "v"); + lua_settable(L, -3); // meta.__mode='v' + lua_setmetatable(L, -2); // setmetatable(bindings, meta) - lua_settable(&s, LUA_REGISTRYINDEX); // REGISTRY[kBindingsTable] = bindings + lua_settable(L, LUA_REGISTRYINDEX); // REGISTRY[kBindingsTable] = bindings // Create the metatable for C++ functions. - luaL_newmetatable(&s, kFunctionMetatable); + luaL_newmetatable(L, kFunctionMetatable); - lua_pushliteral(&s, "__call"); - lua_pushcfunction(&s, generic_function_cb); - lua_settable(&s, -3); // metatable.__call = metatable + lua_pushliteral(L, "__call"); + lua_pushcfunction(L, generic_function_cb); + lua_settable(L, -3); // metatable.__call = metatable - lua_pop(&s, 1); // Clean up the function metatable + lua_pop(L, 1); // Clean up the function metatable } auto PropertyBindings::Register(lua_State* s, Property* prop) -> void { |
