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use rustc_span::symbol::{sym, Symbol};
#[derive(Clone, Debug, Copy, HashStable_Generic)]
pub enum AllocatorKind {
Global,
Default,
}
impl AllocatorKind {
pub fn fn_name(&self, base: Symbol) -> String {
match *self {
AllocatorKind::Global => format!("__rg_{}", base),
AllocatorKind::Default => format!("__rdl_{}", base),
}
}
}
pub enum AllocatorTy {
Layout,
Ptr,
ResultPtr,
Unit,
Usize,
}
pub struct AllocatorMethod {
pub name: Symbol,
pub inputs: &'static [AllocatorTy],
pub output: AllocatorTy,
}
pub static ALLOCATOR_METHODS: &[AllocatorMethod] = &[
AllocatorMethod {
name: sym::alloc,
inputs: &[AllocatorTy::Layout],
output: AllocatorTy::ResultPtr,
},
AllocatorMethod {
name: sym::dealloc,
inputs: &[AllocatorTy::Ptr, AllocatorTy::Layout],
output: AllocatorTy::Unit,
},
AllocatorMethod {
name: sym::realloc,
inputs: &[AllocatorTy::Ptr, AllocatorTy::Layout, AllocatorTy::Usize],
output: AllocatorTy::ResultPtr,
},
AllocatorMethod {
name: sym::alloc_zeroed,
inputs: &[AllocatorTy::Layout],
output: AllocatorTy::ResultPtr,
},
];
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