wasmtime_environ/
ext.rs

1use target_lexicon::{Architecture, Triple};
2
3/// Extension methods for `target_lexicon::Triple`.
4pub trait TripleExt {
5    /// Helper for returning whether this target is for pulley, wasmtime's
6    /// interpreter.
7    fn is_pulley(&self) -> bool;
8
9    /// Returns the target triple for pulley to run on this host.
10    fn pulley_host() -> Self;
11}
12
13impl TripleExt for Triple {
14    fn is_pulley(&self) -> bool {
15        match self.architecture {
16            Architecture::Pulley32 | Architecture::Pulley32be => true,
17            Architecture::Pulley64 | Architecture::Pulley64be => true,
18            _ => false,
19        }
20    }
21
22    fn pulley_host() -> Self {
23        if cfg!(target_endian = "little") {
24            if cfg!(target_pointer_width = "32") {
25                return "pulley32".parse().unwrap();
26            } else if cfg!(target_pointer_width = "64") {
27                return "pulley64".parse().unwrap();
28            }
29        }
30        if cfg!(target_endian = "big") {
31            if cfg!(target_pointer_width = "32") {
32                return "pulley32be".parse().unwrap();
33            } else if cfg!(target_pointer_width = "64") {
34                return "pulley64be".parse().unwrap();
35            }
36        }
37
38        unreachable!()
39    }
40}
wasmtime_environ/ext.rs

wasmtime_environ/
ext.rs
