bjoernager/rust
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Use is_lang_item more aggressively

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This commit is contained in:
Michael Goulet 2024-06-14 14:46:32 -04:00
parent d5c48ebc71
commit 93ff86ed7c
44 changed files with 171 additions and 166 deletions
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3
compiler/rustc_mir_build/src/build/expr/as_constant.rs
View file

@ -2,6 +2,7 @@
use crate::build::{parse_float_into_constval, Builder};
use rustc_ast as ast;
use rustc_hir::LangItem;
use rustc_middle::mir;
use rustc_middle::mir::interpret::{Allocation, LitToConstError, LitToConstInput, Scalar};
use rustc_middle::mir::*;
@ -142,7 +143,7 @@ fn lit_to_mir_constant<'tcx>(
let id = tcx.allocate_bytes(data);
ConstValue::Scalar(Scalar::from_pointer(id.into(), &tcx))
}
(ast::LitKind::CStr(data, _), ty::Ref(_, inner_ty, _)) if matches!(inner_ty.kind(), ty::Adt(def, _) if Some(def.did()) == tcx.lang_items().c_str()) =>
(ast::LitKind::CStr(data, _), ty::Ref(_, inner_ty, _)) if matches!(inner_ty.kind(), ty::Adt(def, _) if tcx.is_lang_item(def.did(), LangItem::CStr)) =>
{
let allocation = Allocation::from_bytes_byte_aligned_immutable(data as &[u8]);
let allocation = tcx.mk_const_alloc(allocation);

2
compiler/rustc_mir_build/src/build/matches/test.rs
View file

@ -141,7 +141,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
let success_block = target_block(TestBranch::Success);
let fail_block = target_block(TestBranch::Failure);
if let ty::Adt(def, _) = ty.kind()
&& Some(def.did()) == tcx.lang_items().string()
&& tcx.is_lang_item(def.did(), LangItem::String)
{
if !tcx.features().string_deref_patterns {
bug!(

3
compiler/rustc_mir_build/src/thir/constant.rs
View file

@ -1,4 +1,5 @@
use rustc_ast as ast;
use rustc_hir::LangItem;
use rustc_middle::bug;
use rustc_middle::mir::interpret::{LitToConstError, LitToConstInput};
use rustc_middle::ty::{self, ParamEnv, ScalarInt, TyCtxt};
@ -46,7 +47,7 @@ pub(crate) fn lit_to_const<'tcx>(
(ast::LitKind::Byte(n), ty::Uint(ty::UintTy::U8)) => {
ty::ValTree::from_scalar_int((*n).into())
}
(ast::LitKind::CStr(data, _), ty::Ref(_, inner_ty, _)) if matches!(inner_ty.kind(), ty::Adt(def, _) if Some(def.did()) == tcx.lang_items().c_str()) =>
(ast::LitKind::CStr(data, _), ty::Ref(_, inner_ty, _)) if matches!(inner_ty.kind(), ty::Adt(def, _) if tcx.is_lang_item(def.did(), LangItem::CStr)) =>
{
let bytes = data as &[u8];
ty::ValTree::from_raw_bytes(tcx, bytes)