40 lines
820 B
Rust
40 lines
820 B
Rust
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use std::{
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rc::Rc,
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time::{SystemTime, UNIX_EPOCH},
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};
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use crate::{
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callable::{Callable, CallingError},
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interpreter::Interpreter,
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value::Value,
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};
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struct Clock;
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impl Callable for Clock {
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fn name(&self) -> String {
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"clock".into()
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}
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fn arity(&self) -> usize {
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0
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}
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fn call(
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&self,
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_interpreter: &mut Interpreter,
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_args: Vec<crate::value::Value>,
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) -> Result<Value, CallingError> {
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let start = SystemTime::now();
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let since_the_epoch = start
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.duration_since(UNIX_EPOCH)
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.map_err(|e| CallingError::CallFailed(e.to_string()))?;
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Ok(Value::Number(since_the_epoch.as_secs_f64()))
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}
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}
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pub fn all() -> Vec<(String, Value)> {
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vec![("clock".into(), Value::Callable(Rc::new(Clock {})))]
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}
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