try some macro magic
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7a173035a6
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1 changed files with 17 additions and 24 deletions
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@ -263,32 +263,25 @@ impl Callable for CliArgs {
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}
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}
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/// Helper macro to create a (String, Value) tuple for a native function.
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macro_rules! native_fn {
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($callable:expr) => {{
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let callable_rc: Rc<dyn Callable> = Rc::new($callable);
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(
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callable_rc.name(),
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Value::Callable((callable_rc.clone(), CallableType::Function)),
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)
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}};
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}
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/// Return all native functions available to the Lox interpreter
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pub fn all(cli_args: Vec<String>) -> Vec<(String, Value)> {
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vec![
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(
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"asciiOut".into(),
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Value::Callable((Rc::new(AsciiOut {}), CallableType::Function)),
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),
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(
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"clock".into(),
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Value::Callable((Rc::new(Clock {}), CallableType::Function)),
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),
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(
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"out".into(),
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Value::Callable((Rc::new(Out {}), CallableType::Function)),
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),
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(
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"read".into(),
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Value::Callable((Rc::new(ReadFile {}), CallableType::Function)),
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),
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(
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"promptAscii".into(),
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Value::Callable((Rc::new(PromptAscii {}), CallableType::Function)),
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),
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(
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"args".into(),
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Value::Callable((Rc::new(CliArgs { cli_args }), CallableType::Function)),
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),
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native_fn!(AsciiOut {}),
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native_fn!(Clock {}),
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native_fn!(Out {}),
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native_fn!(ReadFile {}),
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native_fn!(PromptAscii {}),
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native_fn!(CliArgs { cli_args }),
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]
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}
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