| use rustc_span::symbol::{sym, Symbol}; |
| |
| #[derive(Clone, Debug, Copy, Eq, PartialEq, HashStable_Generic)] |
| pub enum AllocatorKind { |
| Global, |
| Default, |
| } |
| |
| pub fn global_fn_name(base: Symbol) -> String { |
| format!("__rust_{base}") |
| } |
| |
| pub fn default_fn_name(base: Symbol) -> String { |
| format!("__rdl_{base}") |
| } |
| |
| pub fn alloc_error_handler_name(alloc_error_handler_kind: AllocatorKind) -> &'static str { |
| match alloc_error_handler_kind { |
| AllocatorKind::Global => "__rg_oom", |
| AllocatorKind::Default => "__rdl_oom", |
| } |
| } |
| |
| pub const NO_ALLOC_SHIM_IS_UNSTABLE: &str = "__rust_no_alloc_shim_is_unstable"; |
| |
| pub enum AllocatorTy { |
| Layout, |
| Ptr, |
| ResultPtr, |
| Unit, |
| Usize, |
| } |
| |
| pub struct AllocatorMethod { |
| pub name: Symbol, |
| pub inputs: &'static [AllocatorMethodInput], |
| pub output: AllocatorTy, |
| } |
| |
| pub struct AllocatorMethodInput { |
| pub name: &'static str, |
| pub ty: AllocatorTy, |
| } |
| |
| pub static ALLOCATOR_METHODS: &[AllocatorMethod] = &[ |
| AllocatorMethod { |
| name: sym::alloc, |
| inputs: &[AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout }], |
| output: AllocatorTy::ResultPtr, |
| }, |
| AllocatorMethod { |
| name: sym::dealloc, |
| inputs: &[ |
| AllocatorMethodInput { name: "ptr", ty: AllocatorTy::Ptr }, |
| AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout }, |
| ], |
| output: AllocatorTy::Unit, |
| }, |
| AllocatorMethod { |
| name: sym::realloc, |
| inputs: &[ |
| AllocatorMethodInput { name: "ptr", ty: AllocatorTy::Ptr }, |
| AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout }, |
| AllocatorMethodInput { name: "new_size", ty: AllocatorTy::Usize }, |
| ], |
| output: AllocatorTy::ResultPtr, |
| }, |
| AllocatorMethod { |
| name: sym::alloc_zeroed, |
| inputs: &[AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout }], |
| output: AllocatorTy::ResultPtr, |
| }, |
| ]; |