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Pass TraitEnvironment into layout_ty and const_eval

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This commit is contained in:
hkalbasi 2023-07-20 13:08:38 +03:30
parent cc2f0ec32c
commit eb143383c3
14 changed files with 149 additions and 87 deletions
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17
crates/hir-ty/src/consteval.rs
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@ -16,7 +16,8 @@ use triomphe::Arc;
use crate::{
db::HirDatabase, infer::InferenceContext, lower::ParamLoweringMode,
mir::monomorphize_mir_body_bad, to_placeholder_idx, utils::Generics, Const, ConstData,
ConstScalar, ConstValue, GenericArg, Interner, MemoryMap, Substitution, Ty, TyBuilder,
ConstScalar, ConstValue, GenericArg, Interner, MemoryMap, Substitution, TraitEnvironment, Ty,
TyBuilder,
};
use super::mir::{interpret_mir, lower_to_mir, pad16, MirEvalError, MirLowerError};
@ -135,7 +136,7 @@ pub fn intern_const_ref(
ty: Ty,
krate: CrateId,
) -> Const {
let layout = db.layout_of_ty(ty.clone(), krate);
let layout = db.layout_of_ty(ty.clone(), Arc::new(TraitEnvironment::empty(krate)));
let bytes = match value {
LiteralConstRef::Int(i) => {
// FIXME: We should handle failure of layout better.
@ -173,7 +174,7 @@ pub fn try_const_usize(db: &dyn HirDatabase, c: &Const) -> Option<u128> {
chalk_ir::ConstValue::Concrete(c) => match &c.interned {
ConstScalar::Bytes(it, _) => Some(u128::from_le_bytes(pad16(&it, false))),
ConstScalar::UnevaluatedConst(c, subst) => {
let ec = db.const_eval(*c, subst.clone()).ok()?;
let ec = db.const_eval(*c, subst.clone(), None).ok()?;
try_const_usize(db, &ec)
}
_ => None,
@ -186,6 +187,7 @@ pub(crate) fn const_eval_recover(
_: &[String],
_: &GeneralConstId,
_: &Substitution,
_: &Option<Arc<TraitEnvironment>>,
) -> Result<Const, ConstEvalError> {
Err(ConstEvalError::MirLowerError(MirLowerError::Loop))
}
@ -210,6 +212,7 @@ pub(crate) fn const_eval_query(
db: &dyn HirDatabase,
def: GeneralConstId,
subst: Substitution,
trait_env: Option<Arc<TraitEnvironment>>,
) -> Result<Const, ConstEvalError> {
let body = match def {
GeneralConstId::ConstId(c) => {
@ -228,7 +231,7 @@ pub(crate) fn const_eval_query(
}
GeneralConstId::InTypeConstId(c) => db.mir_body(c.into())?,
};
let c = interpret_mir(db, body, false).0?;
let c = interpret_mir(db, body, false, trait_env).0?;
Ok(c)
}
@ -241,7 +244,7 @@ pub(crate) fn const_eval_static_query(
Substitution::empty(Interner),
db.trait_environment_for_body(def.into()),
)?;
let c = interpret_mir(db, body, false).0?;
let c = interpret_mir(db, body, false, None).0?;
Ok(c)
}
@ -268,7 +271,7 @@ pub(crate) fn const_eval_discriminant_variant(
Substitution::empty(Interner),
db.trait_environment_for_body(def),
)?;
let c = interpret_mir(db, mir_body, false).0?;
let c = interpret_mir(db, mir_body, false, None).0?;
let c = try_const_usize(db, &c).unwrap() as i128;
Ok(c)
}
@ -293,7 +296,7 @@ pub(crate) fn eval_to_const(
}
let infer = ctx.clone().resolve_all();
if let Ok(mir_body) = lower_to_mir(ctx.db, ctx.owner, &ctx.body, &infer, expr) {
if let Ok(result) = interpret_mir(db, Arc::new(mir_body), true).0 {
if let Ok(result) = interpret_mir(db, Arc::new(mir_body), true, None).0 {
return result;
}
}