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Wait, context already works, what the heck

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This commit is contained in:
Filip Tibell 2023-08-22 15:59:49 -05:00
parent fc90630781
commit 5ae8f662b9
1 changed files with 3 additions and 53 deletions
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56
src/lune/mod.rs
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@ -1,6 +1,6 @@
use std::process::ExitCode;
use mlua::{Lua, Table as LuaTable, Value as LuaValue};
use mlua::Lua;
mod builtins;
mod error;
@ -55,6 +55,8 @@ impl Lune {
/**
Runs a Lune script inside of the current runtime.
This will preserve any modifications to global values / context.
*/
pub async fn run(
&mut self,
@ -70,56 +72,4 @@ impl Lune {
Ok(self.scheduler.run_to_completion(self.lua).await)
}
/**
Creates a context struct that can be called / ran multiple times,
preserving the function environment / context between each run.
Note that this is slightly slower than using [`run`] directly.
*/
pub fn context(&self, script_name: impl Into<String>) -> Result<LuneContext, LuneError> {
let script_name = script_name.into();
let environment = self.lua.create_table()?;
for pair in self.lua.globals().pairs::<LuaValue, LuaValue>() {
let (key, value) = pair?;
environment.set(key, value)?;
}
Ok(LuneContext {
parent: self,
script_name,
environment,
})
}
}
pub struct LuneContext<'a> {
parent: &'a Lune,
script_name: String,
environment: LuaTable<'a>,
}
impl<'a> LuneContext<'a> {
/**
Runs a Lune script inside of the current runtime.
The function environment / context will be preserved between each run.
*/
pub async fn run(&mut self, script_contents: impl AsRef<[u8]>) -> Result<ExitCode, LuneError> {
let main = self
.parent
.lua
.load(script_contents.as_ref())
.set_name(&self.script_name)
.set_environment(self.environment.clone());
self.parent.scheduler.push_back(self.parent.lua, main, ())?;
Ok(self
.parent
.scheduler
.run_to_completion(self.parent.lua)
.await)
}
}