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|
use super::*;
pub trait Decode {
fn decode(file: &'static File, code: usize) -> Self;
}
macro_rules! code {
($name:ident($size:literal) $(($table:ident, $code:literal))+) => {
#[derive(Clone, Debug, Hash, PartialEq, Eq, Ord, PartialOrd)]
pub enum $name {
$($table($table),)*
}
impl Decode for $name {
fn decode(file: &'static File, code: usize) -> Self {
let (kind, row) = (code & ((1 << $size) - 1), (code >> $size) - 1);
match kind {
$($code => Self::$table($table(Row::new(file, row))),)*
rest => unimplemented!("{rest:?}"),
}
}
}
impl $name {
pub fn encode(&self) -> usize {
match self {
$(Self::$table(row) => (row.index() + 1) << $size | $code,)*
}
}
}
$(
impl From<$table> for $name {
fn from(from: $table) -> Self {
Self::$table(from)
}
}
)*
};
}
code! { AttributeType(3)
(MemberRef, 3)
}
code! { HasAttribute(5)
(MethodDef, 0)
(Field, 1)
(TypeRef, 2)
(TypeDef, 3)
(Param, 4)
(InterfaceImpl, 5)
(MemberRef, 6)
(TypeSpec, 13)
(GenericParam, 19)
}
code! { HasConstant(2)
(Field, 0)
}
code! { MemberForwarded(1)
(MethodDef, 1)
}
code! { MemberRefParent(3)
(TypeRef, 1)
}
code! { TypeDefOrRef(2)
(TypeDef, 0)
(TypeRef, 1)
(TypeSpec, 2)
}
code! { TypeOrMethodDef(1)
(TypeDef, 0)
}
code! { ResolutionScope(2)
(Module, 0)
(ModuleRef, 1)
(AssemblyRef, 2)
(TypeRef, 3)
}
impl TypeDefOrRef {
pub fn type_name(&self) -> TypeName {
match self {
Self::TypeDef(row) => row.type_name(),
Self::TypeRef(row) => row.type_name(),
rest => unimplemented!("{rest:?}"),
}
}
}
|
