mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-20 03:20:18 +00:00
...
This commit is contained in:
parent
f83dac9252
commit
2fd0732be5
@ -1,6 +1,6 @@
|
||||
---
|
||||
icon: cpu
|
||||
title: Write bindings
|
||||
title: Write Bindings
|
||||
order: 18
|
||||
---
|
||||
|
||||
|
80
docs/bindings_lua.md
Normal file
80
docs/bindings_lua.md
Normal file
@ -0,0 +1,80 @@
|
||||
---
|
||||
icon: cpu
|
||||
title: Reuse Lua Bindings
|
||||
order: 17
|
||||
---
|
||||
|
||||
pkpy provides a lua bridge to reuse lua bindings.
|
||||
It allows you to run lua code and call lua functions in python.
|
||||
|
||||
Add `lua_bridge.hpp` and `lua_bridge.cpp` in [3rd/lua_bridge](https://github.com/blueloveTH/pocketpy/tree/main/3rd/lua_bridge) to your project.
|
||||
Make sure `lua.h`, `lualib.h` and `lauxlib.h` are in your include path
|
||||
because `lua_bridge.hpp` needs them.
|
||||
|
||||
The lua bridge is based on lua 5.1.5 for maximum compatibility.
|
||||
lua 5.2 or higher should also work.
|
||||
|
||||
### Setup
|
||||
|
||||
Use `initialize_lua_bridge(VM*, lua_State*)` to initialize the lua bridge.
|
||||
This creates a new module `lua` in your python virtual machine.
|
||||
|
||||
You can use `lua.dostring` to execute lua code and get the result.
|
||||
And use `lua.Table()` to create a lua table.
|
||||
A `lua.Table` instance in python is a dict-like object which provides a bunch of
|
||||
magic methods to access the underlying lua table.
|
||||
|
||||
```python
|
||||
class Table:
|
||||
def keys(self) -> list:
|
||||
"""Return a list of keys in the table."""
|
||||
|
||||
def values(self) -> list:
|
||||
"""Return a list of values in the table."""
|
||||
|
||||
def items(self) -> list[tuple]:
|
||||
"""Return a list of (key, value) pairs in the table."""
|
||||
|
||||
def __len__(self) -> int:
|
||||
"""Return the length of the table."""
|
||||
|
||||
def __contains__(self, key) -> bool:
|
||||
"""Return True if the table contains the key."""
|
||||
|
||||
def __getitem__(self, key): ...
|
||||
def __setitem__(self, key, value): ...
|
||||
def __getattr__(self, key): ...
|
||||
def __setattr__(self, key, value): ...
|
||||
```
|
||||
|
||||
### Example
|
||||
```cpp
|
||||
#include "lua_bridge.hpp"
|
||||
|
||||
using namespace pkpy;
|
||||
|
||||
int main(){
|
||||
VM* vm = new VM();
|
||||
|
||||
// create lua state
|
||||
lua_State* L = luaL_newstate();
|
||||
luaL_openlibs(L);
|
||||
|
||||
// initialize lua bridge
|
||||
initialize_lua_bridge(vm, L);
|
||||
|
||||
// dostring to get _G
|
||||
vm->exec("import lua");
|
||||
vm->exec("g = lua.dostring('return _G')");
|
||||
|
||||
// create a table
|
||||
vm->exec("t = lua.Table()");
|
||||
vm->exec("t.a = 1");
|
||||
vm->exec("t.b = 2");
|
||||
|
||||
// call lua function
|
||||
vm->exec("g.print(t.a + t.b)"); // 3
|
||||
|
||||
return 0;
|
||||
}
|
||||
```
|
@ -1,6 +1,6 @@
|
||||
---
|
||||
icon: log
|
||||
title: 'Cheat sheet'
|
||||
title: 'Cheatsheet'
|
||||
order: 22
|
||||
---
|
||||
|
||||
|
@ -1,7 +1,7 @@
|
||||
---
|
||||
icon: book
|
||||
order: -5
|
||||
label: Coding style guide
|
||||
label: Coding Style Guide
|
||||
---
|
||||
|
||||
# Coding Style Guide
|
||||
|
@ -1,2 +1,3 @@
|
||||
icon: rocket
|
||||
order: 20
|
||||
order: 20
|
||||
label: Quick Start
|
||||
|
Loading…
x
Reference in New Issue
Block a user