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Fast-path for determining ability member impls for builtin opaques

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Ayaz Hafiz 2023-03-20 16:05:10 -04:00
parent 297a571b34
commit e6094df69b
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GPG key ID: 0E2A37416A25EF58
8 changed files with 182 additions and 60 deletions
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44
crates/compiler/derive_key/src/encoding.rs
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@ -112,22 +112,8 @@ impl FlatEncodable {
//
FlatType::Func(..) => Err(Underivable),
},
Content::Alias(sym, _, real_var, _) => match sym {
Symbol::BOOL_BOOL => Ok(Immediate(Symbol::ENCODE_BOOL)),
Symbol::NUM_U8 | Symbol::NUM_UNSIGNED8 => Ok(Immediate(Symbol::ENCODE_U8)),
Symbol::NUM_U16 | Symbol::NUM_UNSIGNED16 => Ok(Immediate(Symbol::ENCODE_U16)),
Symbol::NUM_U32 | Symbol::NUM_UNSIGNED32 => Ok(Immediate(Symbol::ENCODE_U32)),
Symbol::NUM_U64 | Symbol::NUM_UNSIGNED64 => Ok(Immediate(Symbol::ENCODE_U64)),
Symbol::NUM_U128 | Symbol::NUM_UNSIGNED128 => Ok(Immediate(Symbol::ENCODE_U128)),
Symbol::NUM_I8 | Symbol::NUM_SIGNED8 => Ok(Immediate(Symbol::ENCODE_I8)),
Symbol::NUM_I16 | Symbol::NUM_SIGNED16 => Ok(Immediate(Symbol::ENCODE_I16)),
Symbol::NUM_I32 | Symbol::NUM_SIGNED32 => Ok(Immediate(Symbol::ENCODE_I32)),
Symbol::NUM_I64 | Symbol::NUM_SIGNED64 => Ok(Immediate(Symbol::ENCODE_I64)),
Symbol::NUM_I128 | Symbol::NUM_SIGNED128 => Ok(Immediate(Symbol::ENCODE_I128)),
Symbol::NUM_DEC | Symbol::NUM_DECIMAL => Ok(Immediate(Symbol::ENCODE_DEC)),
Symbol::NUM_F32 | Symbol::NUM_BINARY32 => Ok(Immediate(Symbol::ENCODE_F32)),
Symbol::NUM_F64 | Symbol::NUM_BINARY64 => Ok(Immediate(Symbol::ENCODE_F64)),
Symbol::NUM_NAT | Symbol::NUM_NATURAL => Err(Underivable),
Content::Alias(sym, _, real_var, _) => match from_builtin_symbol(sym) {
Some(lambda) => Ok(lambda),
// TODO: I believe it is okay to unwrap opaques here because derivers are only used
// by the backend, and the backend treats opaques like structural aliases.
_ => Self::from_var(subs, real_var),
@ -145,4 +131,30 @@ impl FlatEncodable {
Content::LambdaSet(_) => Err(Underivable),
}
}
pub(crate) fn from_builtin_symbol(symbol: Symbol) -> Result<FlatEncodable, DeriveError> {
from_builtin_symbol(symbol).ok_or(DeriveError::Underivable)
}
}
const fn from_builtin_symbol(symbol: Symbol) -> Option<FlatEncodable> {
use FlatEncodable::*;
match symbol {
Symbol::BOOL_BOOL => Some(Immediate(Symbol::ENCODE_BOOL)),
Symbol::NUM_U8 | Symbol::NUM_UNSIGNED8 => Some(Immediate(Symbol::ENCODE_U8)),
Symbol::NUM_U16 | Symbol::NUM_UNSIGNED16 => Some(Immediate(Symbol::ENCODE_U16)),
Symbol::NUM_U32 | Symbol::NUM_UNSIGNED32 => Some(Immediate(Symbol::ENCODE_U32)),
Symbol::NUM_U64 | Symbol::NUM_UNSIGNED64 => Some(Immediate(Symbol::ENCODE_U64)),
Symbol::NUM_U128 | Symbol::NUM_UNSIGNED128 => Some(Immediate(Symbol::ENCODE_U128)),
Symbol::NUM_I8 | Symbol::NUM_SIGNED8 => Some(Immediate(Symbol::ENCODE_I8)),
Symbol::NUM_I16 | Symbol::NUM_SIGNED16 => Some(Immediate(Symbol::ENCODE_I16)),
Symbol::NUM_I32 | Symbol::NUM_SIGNED32 => Some(Immediate(Symbol::ENCODE_I32)),
Symbol::NUM_I64 | Symbol::NUM_SIGNED64 => Some(Immediate(Symbol::ENCODE_I64)),
Symbol::NUM_I128 | Symbol::NUM_SIGNED128 => Some(Immediate(Symbol::ENCODE_I128)),
Symbol::NUM_DEC | Symbol::NUM_DECIMAL => Some(Immediate(Symbol::ENCODE_DEC)),
Symbol::NUM_F32 | Symbol::NUM_BINARY32 => Some(Immediate(Symbol::ENCODE_F32)),
Symbol::NUM_F64 | Symbol::NUM_BINARY64 => Some(Immediate(Symbol::ENCODE_F64)),
Symbol::NUM_NAT | Symbol::NUM_NATURAL => None,
_ => None,
}
}