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Contents
//! Cranelift DSL classes.
//!
//! This module defines the classes that are used to define Cranelift
//! instructions and other entities.
pub mod formats;
pub mod instructions;
pub mod isa;
pub mod operands;
pub mod settings;
pub mod types;
pub mod typevar;
/// A macro that converts boolean settings into predicates to look more natural.
#[macro_export]
macro_rules! predicate {
($a:ident && $($b:tt)*) => {
PredicateNode::And(Box::new($a.into()), Box::new(predicate!($($b)*)))
};
($a:ident) => {
$a.into()
};
}
/// A macro that joins boolean settings into a list (e.g. `preset!(feature_a && feature_b)`).
#[macro_export]
macro_rules! preset {
() => {
vec![]
};
($($x:ident)&&*) => {
{
let mut v = Vec::new();
$(
v.push($x.into());
)*
v
}
};
}
/// Convert the string `s` to CamelCase.
pub fn camel_case(s: &str) -> String {
let mut output_chars = String::with_capacity(s.len());
let mut capitalize = true;
for curr_char in s.chars() {
if curr_char == '_' {
capitalize = true;
} else {
if capitalize {
output_chars.extend(curr_char.to_uppercase());
} else {
output_chars.push(curr_char);
}
capitalize = false;
}
}
output_chars
}
#[cfg(test)]
mod tests {
use super::camel_case;
#[test]
fn camel_case_works() {
assert_eq!(camel_case("x"), "X");
assert_eq!(camel_case("camel_case"), "CamelCase");
}
}
Version data entries
4 entries across 4 versions & 1 rubygems