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Add derive keys for decoders

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Ayaz Hafiz 2022-08-01 16:17:04 -05:00
parent 6697e353a1
commit e2179348c6
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6 changed files with 129 additions and 4 deletions
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12
crates/compiler/derive_key/src/lib.rs
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@ -13,8 +13,10 @@
//! For these reasons the content keying is based on a strategy as well, which are the variants of
//! [`DeriveKey`].
pub mod decoding;
pub mod encoding;
use decoding::{FlatDecodable, FlatDecodableKey};
use encoding::{FlatEncodable, FlatEncodableKey};
use roc_module::symbol::Symbol;
@ -33,15 +35,14 @@ pub enum DeriveError {
#[repr(u8)]
pub enum DeriveKey {
ToEncoder(FlatEncodableKey),
#[allow(unused)]
Decoding,
Decoder(FlatDecodableKey),
}
impl DeriveKey {
pub fn debug_name(&self) -> String {
match self {
DeriveKey::ToEncoder(key) => format!("toEncoder_{}", key.debug_name()),
DeriveKey::Decoding => todo!(),
DeriveKey::Decoder(key) => format!("decoder_{}", key.debug_name()),
}
}
}
@ -61,6 +62,7 @@ pub enum Derived {
#[derive(Clone, Copy)]
pub enum DeriveBuiltin {
ToEncoder,
Decoder,
}
impl Derived {
@ -74,6 +76,10 @@ impl Derived {
FlatEncodable::Immediate(imm) => Ok(Derived::Immediate(imm)),
FlatEncodable::Key(repr) => Ok(Derived::Key(DeriveKey::ToEncoder(repr))),
},
DeriveBuiltin::Decoder => match decoding::FlatDecodable::from_var(subs, var)? {
FlatDecodable::Immediate(imm) => Ok(Derived::Immediate(imm)),
FlatDecodable::Key(repr) => Ok(Derived::Key(DeriveKey::Decoder(repr))),
},
}
}
}