7fb93fb490
Change-Id: I479e20bf2087e5c4aa20e31b364c57ed0d961bcf Reviewed-on: https://cl.tvl.fyi/c/depot/+/2416 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
25 lines
664 B
Rust
25 lines
664 B
Rust
use std::fmt;
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use std::time::{SystemTime, UNIX_EPOCH};
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use crate::treewalk::errors::Error;
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use crate::treewalk::interpreter::Value;
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use crate::treewalk::parser::Literal;
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pub trait Builtin: fmt::Debug {
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fn arity(&self) -> usize;
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fn call(&self, args: Vec<Value>) -> Result<Value, Error>;
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}
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// Builtin to return the current timestamp.
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#[derive(Debug)]
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pub struct Clock {}
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impl Builtin for Clock {
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fn arity(&self) -> usize {
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0
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}
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fn call(&self, _args: Vec<Value>) -> Result<Value, Error> {
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let now = SystemTime::now().duration_since(UNIX_EPOCH).unwrap();
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Ok(Value::Literal(Literal::Number(now.as_secs() as f64)))
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}
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}
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