More symbol usage

This commit is contained in:
Lukas Wirth 2024-07-16 12:05:16 +02:00
parent c30bdfcc84
commit df5f1777b8
50 changed files with 388 additions and 303 deletions

View file

@ -24,6 +24,7 @@ use hir_expand::{
name::{AsName, Name},
HirFileId, MacroFileIdExt,
};
use intern::sym;
use stdx::{always, never};
use syntax::{
ast::{self, HasName},
@ -163,8 +164,8 @@ impl<'a> DeclValidator<'a> {
let is_allowed = |def_id| {
let attrs = self.db.attrs(def_id);
// don't bug the user about directly no_mangle annotated stuff, they can't do anything about it
(!recursing && attrs.by_key("no_mangle").exists())
|| attrs.by_key("allow").tt_values().any(|tt| {
(!recursing && attrs.by_key(&sym::no_mangle).exists())
|| attrs.by_key(&sym::allow).tt_values().any(|tt| {
let allows = tt.to_string();
allows.contains(allow_name)
|| allows.contains(allow::BAD_STYLE)

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@ -101,7 +101,7 @@ impl<'db> MatchCheckCtx<'db> {
/// Returns whether the given ADT is from another crate declared `#[non_exhaustive]`.
fn is_foreign_non_exhaustive(&self, adt: hir_def::AdtId) -> bool {
let is_local = adt.krate(self.db.upcast()) == self.module.krate();
!is_local && self.db.attrs(adt.into()).by_key("non_exhaustive").exists()
!is_local && self.db.attrs(adt.into()).by_key(&sym::non_exhaustive).exists()
}
fn variant_id_for_adt(

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@ -1935,7 +1935,7 @@ impl HirDisplay for TypeRef {
}
if let Some(abi) = abi {
f.write_str("extern \"")?;
f.write_str(abi)?;
f.write_str(abi.as_str())?;
f.write_str("\" ")?;
}
write!(f, "fn(")?;
@ -2044,7 +2044,7 @@ impl HirDisplay for Path {
.display_name
.as_ref()
.map(|name| name.canonical_name())
.unwrap_or("$crate");
.unwrap_or(&sym::dollar_crate);
write!(f, "{name}")?
}
}

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@ -6,6 +6,7 @@ use chalk_ir::{
DebruijnIndex,
};
use hir_def::{visibility::Visibility, AdtId, EnumVariantId, HasModule, ModuleId, VariantId};
use intern::sym;
use rustc_hash::FxHashSet;
use crate::{
@ -118,7 +119,7 @@ impl UninhabitedFrom<'_> {
subst: &Substitution,
) -> ControlFlow<VisiblyUninhabited> {
let is_local = variant.krate(self.db.upcast()) == self.target_mod.krate();
if !is_local && self.db.attrs(variant.into()).by_key("non_exhaustive").exists() {
if !is_local && self.db.attrs(variant.into()).by_key(&sym::non_exhaustive).exists() {
return CONTINUE_OPAQUELY_INHABITED;
}

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@ -8,6 +8,7 @@ use hir_def::{
layout::{Integer, LayoutCalculator, ReprOptions, TargetDataLayout},
AdtId, VariantId,
};
use intern::sym;
use rustc_index::IndexVec;
use smallvec::SmallVec;
use triomphe::Arc;
@ -129,7 +130,10 @@ fn layout_scalar_valid_range(db: &dyn HirDatabase, def: AdtId) -> (Bound<u128>,
}
Bound::Unbounded
};
(get("rustc_layout_scalar_valid_range_start"), get("rustc_layout_scalar_valid_range_end"))
(
get(&sym::rustc_layout_scalar_valid_range_start),
get(&sym::rustc_layout_scalar_valid_range_end),
)
}
pub fn layout_of_adt_recover(

View file

@ -62,7 +62,7 @@ use chalk_ir::{
use either::Either;
use hir_def::{hir::ExprId, type_ref::Rawness, CallableDefId, GeneralConstId, TypeOrConstParamId};
use hir_expand::name::Name;
use intern::sym;
use intern::{sym, Symbol};
use la_arena::{Arena, Idx};
use mir::{MirEvalError, VTableMap};
use rustc_hash::{FxHashMap, FxHashSet};
@ -423,45 +423,45 @@ impl Hash for FnAbi {
}
impl FnAbi {
#[allow(clippy::should_implement_trait)]
pub fn from_str(s: &str) -> FnAbi {
#[rustfmt::skip]
pub fn from_symbol(s: &Symbol) -> FnAbi {
match s {
"aapcs-unwind" => FnAbi::AapcsUnwind,
"aapcs" => FnAbi::Aapcs,
"avr-interrupt" => FnAbi::AvrInterrupt,
"avr-non-blocking-interrupt" => FnAbi::AvrNonBlockingInterrupt,
"C-cmse-nonsecure-call" => FnAbi::CCmseNonsecureCall,
"C-unwind" => FnAbi::CUnwind,
"C" => FnAbi::C,
"cdecl-unwind" => FnAbi::CDeclUnwind,
"cdecl" => FnAbi::CDecl,
"efiapi" => FnAbi::Efiapi,
"fastcall-unwind" => FnAbi::FastcallUnwind,
"fastcall" => FnAbi::Fastcall,
"msp430-interrupt" => FnAbi::Msp430Interrupt,
"platform-intrinsic" => FnAbi::PlatformIntrinsic,
"ptx-kernel" => FnAbi::PtxKernel,
"riscv-interrupt-m" => FnAbi::RiscvInterruptM,
"riscv-interrupt-s" => FnAbi::RiscvInterruptS,
"rust-call" => FnAbi::RustCall,
"rust-cold" => FnAbi::RustCold,
"rust-intrinsic" => FnAbi::RustIntrinsic,
"Rust" => FnAbi::Rust,
"stdcall-unwind" => FnAbi::StdcallUnwind,
"stdcall" => FnAbi::Stdcall,
"system-unwind" => FnAbi::SystemUnwind,
"system" => FnAbi::System,
"sysv64-unwind" => FnAbi::Sysv64Unwind,
"sysv64" => FnAbi::Sysv64,
"thiscall-unwind" => FnAbi::ThiscallUnwind,
"thiscall" => FnAbi::Thiscall,
"unadjusted" => FnAbi::Unadjusted,
"vectorcall-unwind" => FnAbi::VectorcallUnwind,
"vectorcall" => FnAbi::Vectorcall,
"wasm" => FnAbi::Wasm,
"win64-unwind" => FnAbi::Win64Unwind,
"win64" => FnAbi::Win64,
"x86-interrupt" => FnAbi::X86Interrupt,
s if *s == sym::aapcs_dash_unwind => FnAbi::AapcsUnwind,
s if *s == sym::aapcs => FnAbi::Aapcs,
s if *s == sym::avr_dash_interrupt => FnAbi::AvrInterrupt,
s if *s == sym::avr_dash_non_dash_blocking_dash_interrupt => FnAbi::AvrNonBlockingInterrupt,
s if *s == sym::C_dash_cmse_dash_nonsecure_dash_call => FnAbi::CCmseNonsecureCall,
s if *s == sym::C_dash_unwind => FnAbi::CUnwind,
s if *s == sym::C => FnAbi::C,
s if *s == sym::cdecl_dash_unwind => FnAbi::CDeclUnwind,
s if *s == sym::cdecl => FnAbi::CDecl,
s if *s == sym::efiapi => FnAbi::Efiapi,
s if *s == sym::fastcall_dash_unwind => FnAbi::FastcallUnwind,
s if *s == sym::fastcall => FnAbi::Fastcall,
s if *s == sym::msp430_dash_interrupt => FnAbi::Msp430Interrupt,
s if *s == sym::platform_dash_intrinsic => FnAbi::PlatformIntrinsic,
s if *s == sym::ptx_dash_kernel => FnAbi::PtxKernel,
s if *s == sym::riscv_dash_interrupt_dash_m => FnAbi::RiscvInterruptM,
s if *s == sym::riscv_dash_interrupt_dash_s => FnAbi::RiscvInterruptS,
s if *s == sym::rust_dash_call => FnAbi::RustCall,
s if *s == sym::rust_dash_cold => FnAbi::RustCold,
s if *s == sym::rust_dash_intrinsic => FnAbi::RustIntrinsic,
s if *s == sym::Rust => FnAbi::Rust,
s if *s == sym::stdcall_dash_unwind => FnAbi::StdcallUnwind,
s if *s == sym::stdcall => FnAbi::Stdcall,
s if *s == sym::system_dash_unwind => FnAbi::SystemUnwind,
s if *s == sym::system => FnAbi::System,
s if *s == sym::sysv64_dash_unwind => FnAbi::Sysv64Unwind,
s if *s == sym::sysv64 => FnAbi::Sysv64,
s if *s == sym::thiscall_dash_unwind => FnAbi::ThiscallUnwind,
s if *s == sym::thiscall => FnAbi::Thiscall,
s if *s == sym::unadjusted => FnAbi::Unadjusted,
s if *s == sym::vectorcall_dash_unwind => FnAbi::VectorcallUnwind,
s if *s == sym::vectorcall => FnAbi::Vectorcall,
s if *s == sym::wasm => FnAbi::Wasm,
s if *s == sym::win64_dash_unwind => FnAbi::Win64Unwind,
s if *s == sym::win64 => FnAbi::Win64,
s if *s == sym::x86_dash_interrupt => FnAbi::X86Interrupt,
_ => FnAbi::Unknown,
}
}

View file

@ -298,7 +298,7 @@ impl<'a> TyLoweringContext<'a> {
TyKind::Function(FnPointer {
num_binders: 0, // FIXME lower `for<'a> fn()` correctly
sig: FnSig {
abi: abi.as_deref().map_or(FnAbi::Rust, FnAbi::from_str),
abi: abi.as_ref().map_or(FnAbi::Rust, FnAbi::from_symbol),
safety: if is_unsafe { Safety::Unsafe } else { Safety::Safe },
variadic,
},
@ -1858,7 +1858,7 @@ fn fn_sig_for_fn(db: &dyn HirDatabase, def: FunctionId) -> PolyFnSig {
ret,
data.is_varargs(),
if data.has_unsafe_kw() { Safety::Unsafe } else { Safety::Safe },
data.abi.as_deref().map_or(FnAbi::Rust, FnAbi::from_str),
data.abi.as_ref().map_or(FnAbi::Rust, FnAbi::from_symbol),
);
make_binders(db, &generics, sig)
}

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@ -13,6 +13,7 @@ use hir_def::{
ModuleId, TraitId,
};
use hir_expand::name::Name;
use intern::sym;
use rustc_hash::{FxHashMap, FxHashSet};
use smallvec::{smallvec, SmallVec};
use span::Edition;
@ -200,7 +201,7 @@ impl TraitImpls {
// FIXME: Reservation impls should be considered during coherence checks. If we are
// (ever) to implement coherence checks, this filtering should be done by the trait
// solver.
if db.attrs(impl_id.into()).by_key("rustc_reservation_impl").exists() {
if db.attrs(impl_id.into()).by_key(&sym::rustc_reservation_impl).exists() {
continue;
}
let target_trait = match db.impl_trait(impl_id) {

View file

@ -15,7 +15,7 @@ use hir_def::{
StaticId, VariantId,
};
use hir_expand::{mod_path::path, name::Name, HirFileIdExt, InFile};
use intern::{sym, Interned};
use intern::sym;
use la_arena::ArenaMap;
use rustc_abi::TargetDataLayout;
use rustc_apfloat::{

View file

@ -15,9 +15,9 @@ use crate::{
error_lifetime,
mir::eval::{
pad16, Address, AdtId, Arc, BuiltinType, Evaluator, FunctionId, HasModule, HirDisplay,
Interned, InternedClosure, Interner, Interval, IntervalAndTy, IntervalOrOwned,
ItemContainerId, LangItem, Layout, Locals, Lookup, MirEvalError, MirSpan, Mutability,
Result, Substitution, Ty, TyBuilder, TyExt,
InternedClosure, Interner, Interval, IntervalAndTy, IntervalOrOwned, ItemContainerId,
LangItem, Layout, Locals, Lookup, MirEvalError, MirSpan, Mutability, Result, Substitution,
Ty, TyBuilder, TyExt,
},
};
@ -54,12 +54,12 @@ impl Evaluator<'_> {
let function_data = self.db.function_data(def);
let is_intrinsic = match &function_data.abi {
Some(abi) => *abi == Interned::new_str("rust-intrinsic"),
Some(abi) => *abi == sym::rust_dash_intrinsic,
None => match def.lookup(self.db.upcast()).container {
hir_def::ItemContainerId::ExternBlockId(block) => {
let id = block.lookup(self.db.upcast()).id;
id.item_tree(self.db.upcast())[id.value].abi.as_deref()
== Some("rust-intrinsic")
id.item_tree(self.db.upcast())[id.value].abi.as_ref()
== Some(&sym::rust_dash_intrinsic)
}
_ => false,
},
@ -76,12 +76,12 @@ impl Evaluator<'_> {
return Ok(true);
}
let is_platform_intrinsic = match &function_data.abi {
Some(abi) => *abi == Interned::new_str("platform-intrinsic"),
Some(abi) => *abi == sym::platform_dash_intrinsic,
None => match def.lookup(self.db.upcast()).container {
hir_def::ItemContainerId::ExternBlockId(block) => {
let id = block.lookup(self.db.upcast()).id;
id.item_tree(self.db.upcast())[id.value].abi.as_deref()
== Some("platform-intrinsic")
id.item_tree(self.db.upcast())[id.value].abi.as_ref()
== Some(&sym::platform_dash_intrinsic)
}
_ => false,
},
@ -100,7 +100,7 @@ impl Evaluator<'_> {
let is_extern_c = match def.lookup(self.db.upcast()).container {
hir_def::ItemContainerId::ExternBlockId(block) => {
let id = block.lookup(self.db.upcast()).id;
id.item_tree(self.db.upcast())[id.value].abi.as_deref() == Some("C")
id.item_tree(self.db.upcast())[id.value].abi.as_ref() == Some(&sym::C)
}
_ => false,
};
@ -314,7 +314,7 @@ impl Evaluator<'_> {
use LangItem::*;
let attrs = self.db.attrs(def.into());
if attrs.by_key("rustc_const_panic_str").exists() {
if attrs.by_key(&sym::rustc_const_panic_str).exists() {
// `#[rustc_const_panic_str]` is treated like `lang = "begin_panic"` by rustc CTFE.
return Some(LangItem::BeginPanic);
}

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@ -1406,6 +1406,7 @@ impl<'ctx> MirLowerCtx<'ctx> {
const USIZE_SIZE: usize = mem::size_of::<usize>();
let bytes: Box<[_]> = match l {
hir_def::hir::Literal::String(b) => {
let b = b.as_str();
let mut data = [0; { 2 * USIZE_SIZE }];
data[..USIZE_SIZE].copy_from_slice(&0usize.to_le_bytes());
data[USIZE_SIZE..].copy_from_slice(&b.len().to_le_bytes());

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@ -18,6 +18,7 @@ use hir_def::{
TypeOrConstParamId,
};
use hir_expand::name::Name;
use intern::sym;
use rustc_abi::TargetDataLayout;
use rustc_hash::FxHashSet;
use smallvec::{smallvec, SmallVec};
@ -254,7 +255,7 @@ pub fn is_fn_unsafe_to_call(db: &dyn HirDatabase, func: FunctionId) -> bool {
let data = db.function_data(func);
if data.has_unsafe_kw() {
// Functions that are `#[rustc_deprecated_safe_2024]` are safe to call before 2024.
if db.attrs(func.into()).by_key("rustc_deprecated_safe_2024").exists() {
if db.attrs(func.into()).by_key(&sym::rustc_deprecated_safe_2024).exists() {
// FIXME: Properly check the caller span and mark it as unsafe after 2024.
return false;
}
@ -268,11 +269,11 @@ pub fn is_fn_unsafe_to_call(db: &dyn HirDatabase, func: FunctionId) -> bool {
let id = block.lookup(db.upcast()).id;
let is_intrinsic =
id.item_tree(db.upcast())[id.value].abi.as_deref() == Some("rust-intrinsic");
id.item_tree(db.upcast())[id.value].abi.as_ref() == Some(&sym::rust_dash_intrinsic);
if is_intrinsic {
// Intrinsics are unsafe unless they have the rustc_safe_intrinsic attribute
!data.attrs.by_key("rustc_safe_intrinsic").exists()
!data.attrs.by_key(&sym::rustc_safe_intrinsic).exists()
} else {
// Extern items are always unsafe
true