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Auto merge of #16388 - Veykril:fn-abi, r=Veykril

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internal: Record FnAbi

This unfortunately breaks our lub coercions, so will need to look into fixing that first, though I am not sure what is going wrong where...

Stubbed some stuff out for the time being.
This commit is contained in:
bors 2024-01-19 14:37:58 +00:00
commit 04edfa1e5a
20 changed files with 329 additions and 115 deletions
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22
crates/hir-def/src/hir/type_ref.rs
View file

@ -10,7 +10,7 @@ use hir_expand::{
AstId,
};
use intern::Interned;
use syntax::ast::{self, HasName};
use syntax::ast::{self, HasName, IsString};
use crate::{
builtin_type::{BuiltinInt, BuiltinType, BuiltinUint},
@ -120,7 +120,12 @@ pub enum TypeRef {
Array(Box<TypeRef>, ConstRef),
Slice(Box<TypeRef>),
/// A fn pointer. Last element of the vector is the return type.
Fn(Vec<(Option<Name>, TypeRef)>, bool /*varargs*/, bool /*is_unsafe*/),
Fn(
Vec<(Option<Name>, TypeRef)>,
bool, /*varargs*/
bool, /*is_unsafe*/
Option<Interned<str>>, /* abi */
),
ImplTrait(Vec<Interned<TypeBound>>),
DynTrait(Vec<Interned<TypeBound>>),
Macro(AstId<ast::MacroCall>),
@ -225,8 +230,17 @@ impl TypeRef {
} else {
Vec::new()
};
fn lower_abi(abi: ast::Abi) -> Interned<str> {
match abi.abi_string() {
Some(tok) => Interned::new_str(tok.text_without_quotes()),
// `extern` default to be `extern "C"`.
_ => Interned::new_str("C"),
}
}
let abi = inner.abi().map(lower_abi);
params.push((None, ret_ty));
TypeRef::Fn(params, is_varargs, inner.unsafe_token().is_some())
TypeRef::Fn(params, is_varargs, inner.unsafe_token().is_some(), abi)
}
// for types are close enough for our purposes to the inner type for now...
ast::Type::ForType(inner) => TypeRef::from_ast_opt(ctx, inner.ty()),
@ -260,7 +274,7 @@ impl TypeRef {
fn go(type_ref: &TypeRef, f: &mut impl FnMut(&TypeRef)) {
f(type_ref);
match type_ref {
TypeRef::Fn(params, _, _) => {
TypeRef::Fn(params, _, _, _) => {
params.iter().for_each(|(_, param_type)| go(param_type, f))
}
TypeRef::Tuple(types) => types.iter().for_each(|t| go(t, f)),

14
crates/hir-def/src/item_tree/lower.rs
View file

@ -3,7 +3,7 @@
use std::collections::hash_map::Entry;
use hir_expand::{ast_id_map::AstIdMap, span_map::SpanMapRef, HirFileId};
use syntax::ast::{self, HasModuleItem, HasTypeBounds};
use syntax::ast::{self, HasModuleItem, HasTypeBounds, IsString};
use crate::{
generics::{GenericParams, GenericParamsCollector, TypeParamData, TypeParamProvenance},
@ -721,16 +721,10 @@ enum HasImplicitSelf {
}
fn lower_abi(abi: ast::Abi) -> Interned<str> {
// FIXME: Abi::abi() -> Option<SyntaxToken>?
match abi.syntax().last_token() {
Some(tok) if tok.kind() == SyntaxKind::STRING => {
// FIXME: Better way to unescape?
Interned::new_str(tok.text().trim_matches('"'))
}
_ => {
match abi.abi_string() {
Some(tok) => Interned::new_str(tok.text_without_quotes()),
// `extern` default to be `extern "C"`.
Interned::new_str("C")
}
_ => Interned::new_str("C"),
}
}

7
crates/hir-def/src/pretty.rs
View file

@ -192,12 +192,17 @@ pub(crate) fn print_type_ref(
print_type_ref(db, elem, buf)?;
write!(buf, "]")?;
}
TypeRef::Fn(args_and_ret, varargs, is_unsafe) => {
TypeRef::Fn(args_and_ret, varargs, is_unsafe, abi) => {
let ((_, return_type), args) =
args_and_ret.split_last().expect("TypeRef::Fn is missing return type");
if *is_unsafe {
write!(buf, "unsafe ")?;
}
if let Some(abi) = abi {
buf.write_str("extern ")?;
buf.write_str(abi)?;
buf.write_char(' ')?;
}
write!(buf, "fn(")?;
for (i, (_, typeref)) in args.iter().enumerate() {
if i != 0 {

6
crates/hir-ty/src/chalk_db.rs
View file

@ -819,7 +819,11 @@ pub(crate) fn fn_def_datum_query(
};
let datum = FnDefDatum {
id: fn_def_id,
sig: chalk_ir::FnSig { abi: (), safety: chalk_ir::Safety::Safe, variadic: sig.is_varargs },
sig: chalk_ir::FnSig {
abi: sig.abi,
safety: chalk_ir::Safety::Safe,
variadic: sig.is_varargs,
},
binders: chalk_ir::Binders::new(binders, bound),
};
Arc::new(datum)

6
crates/hir-ty/src/chalk_ext.rs
View file

@ -202,11 +202,7 @@ impl TyExt for Ty {
fn callable_sig(&self, db: &dyn HirDatabase) -> Option<CallableSig> {
match self.kind(Interner) {
TyKind::Function(fn_ptr) => Some(CallableSig::from_fn_ptr(fn_ptr)),
TyKind::FnDef(def, parameters) => {
let callable_def = db.lookup_intern_callable_def((*def).into());
let sig = db.callable_item_signature(callable_def);
Some(sig.substitute(Interner, parameters))
}
TyKind::FnDef(def, parameters) => Some(CallableSig::from_def(db, *def, parameters)),
TyKind::Closure(.., substs) => ClosureSubst(substs).sig_ty().callable_sig(db),
_ => None,
}

39
crates/hir-ty/src/display.rs
View file

@ -8,7 +8,7 @@ use std::{
};
use base_db::CrateId;
use chalk_ir::{BoundVar, TyKind};
use chalk_ir::{BoundVar, Safety, TyKind};
use hir_def::{
data::adt::VariantData,
db::DefDatabase,
@ -41,7 +41,7 @@ use crate::{
primitive, to_assoc_type_id,
utils::{self, detect_variant_from_bytes, generics, ClosureSubst},
AdtId, AliasEq, AliasTy, Binders, CallableDefId, CallableSig, Const, ConstScalar, ConstValue,
DomainGoal, GenericArg, ImplTraitId, Interner, Lifetime, LifetimeData, LifetimeOutlives,
DomainGoal, FnAbi, GenericArg, ImplTraitId, Interner, Lifetime, LifetimeData, LifetimeOutlives,
MemoryMap, Mutability, OpaqueTy, ProjectionTy, ProjectionTyExt, QuantifiedWhereClause, Scalar,
Substitution, TraitEnvironment, TraitRef, TraitRefExt, Ty, TyExt, WhereClause,
};
@ -879,16 +879,27 @@ impl HirDisplay for Ty {
// function pointer type.
return sig.hir_fmt(f);
}
if let Safety::Unsafe = sig.safety {
write!(f, "unsafe ")?;
}
if !matches!(sig.abi, FnAbi::Rust) {
f.write_str("extern \"")?;
f.write_str(sig.abi.as_str())?;
f.write_str("\" ")?;
}
f.start_location_link(def.into());
match def {
CallableDefId::FunctionId(ff) => {
write!(f, "fn {}", db.function_data(ff).name.display(f.db.upcast()))?
write!(f, "fn ")?;
f.start_location_link(def.into());
write!(f, "{}", db.function_data(ff).name.display(f.db.upcast()))?
}
CallableDefId::StructId(s) => {
f.start_location_link(def.into());
write!(f, "{}", db.struct_data(s).name.display(f.db.upcast()))?
}
CallableDefId::EnumVariantId(e) => {
f.start_location_link(def.into());
write!(f, "{}", db.enum_variant_data(e).name.display(f.db.upcast()))?
}
};
@ -1316,9 +1327,19 @@ fn hir_fmt_generics(
impl HirDisplay for CallableSig {
fn hir_fmt(&self, f: &mut HirFormatter<'_>) -> Result<(), HirDisplayError> {
let CallableSig { params_and_return: _, is_varargs, safety, abi: _ } = *self;
if let Safety::Unsafe = safety {
write!(f, "unsafe ")?;
}
// FIXME: Enable this when the FIXME on FnAbi regarding PartialEq is fixed.
// if !matches!(abi, FnAbi::Rust) {
// f.write_str("extern \"")?;
// f.write_str(abi.as_str())?;
// f.write_str("\" ")?;
// }
write!(f, "fn(")?;
f.write_joined(self.params(), ", ")?;
if self.is_varargs {
if is_varargs {
if self.params().is_empty() {
write!(f, "...")?;
} else {
@ -1683,11 +1704,15 @@ impl HirDisplay for TypeRef {
inner.hir_fmt(f)?;
write!(f, "]")?;
}
&TypeRef::Fn(ref parameters, is_varargs, is_unsafe) => {
// FIXME: Function pointer qualifiers.
&TypeRef::Fn(ref parameters, is_varargs, is_unsafe, ref abi) => {
if is_unsafe {
write!(f, "unsafe ")?;
}
if let Some(abi) = abi {
f.write_str("extern \"")?;
f.write_str(abi)?;
f.write_str("\" ")?;
}
write!(f, "fn(")?;
if let Some(((_, return_type), function_parameters)) = parameters.split_last() {
for index in 0..function_parameters.len() {

6
crates/hir-ty/src/infer.rs
View file

@ -1453,10 +1453,10 @@ impl Expectation {
match self {
Expectation::HasType(ety) => {
let ety = table.resolve_ty_shallow(ety);
if !ety.is_ty_var() {
Expectation::HasType(ety)
} else {
if ety.is_ty_var() {
Expectation::None
} else {
Expectation::HasType(ety)
}
}
Expectation::RValueLikeUnsized(ety) => Expectation::RValueLikeUnsized(ety.clone()),

10
crates/hir-ty/src/infer/closure.rs
View file

@ -27,8 +27,8 @@ use crate::{
static_lifetime, to_chalk_trait_id,
traits::FnTrait,
utils::{self, generics, Generics},
Adjust, Adjustment, Binders, BindingMode, ChalkTraitId, ClosureId, DynTy, FnPointer, FnSig,
Interner, Substitution, Ty, TyExt,
Adjust, Adjustment, Binders, BindingMode, ChalkTraitId, ClosureId, DynTy, FnAbi, FnPointer,
FnSig, Interner, Substitution, Ty, TyExt,
};
use super::{Expectation, InferenceContext};
@ -98,7 +98,11 @@ impl InferenceContext<'_> {
cov_mark::hit!(dyn_fn_param_informs_call_site_closure_signature);
return Some(FnPointer {
num_binders: bound.len(Interner),
sig: FnSig { abi: (), safety: chalk_ir::Safety::Safe, variadic: false },
sig: FnSig {
abi: FnAbi::RustCall,
safety: chalk_ir::Safety::Safe,
variadic: false,
},
substitution: FnSubst(Substitution::from_iter(Interner, sig_tys)),
});
}

4
crates/hir-ty/src/infer/coerce.rs
View file

@ -24,7 +24,7 @@ use crate::{
},
static_lifetime,
utils::ClosureSubst,
Canonical, DomainGoal, FnPointer, FnSig, Guidance, InEnvironment, Interner, Solution,
Canonical, DomainGoal, FnAbi, FnPointer, FnSig, Guidance, InEnvironment, Interner, Solution,
Substitution, TraitEnvironment, Ty, TyBuilder, TyExt,
};
@ -691,7 +691,7 @@ fn coerce_closure_fn_ty(closure_substs: &Substitution, safety: chalk_ir::Safety)
match closure_sig.kind(Interner) {
TyKind::Function(fn_ty) => TyKind::Function(FnPointer {
num_binders: fn_ty.num_binders,
sig: FnSig { safety, ..fn_ty.sig },
sig: FnSig { safety, abi: FnAbi::Rust, variadic: fn_ty.sig.variadic },
substitution: fn_ty.substitution.clone(),
})
.intern(Interner),

12
crates/hir-ty/src/infer/expr.rs
View file

@ -39,9 +39,9 @@ use crate::{
static_lifetime, to_chalk_trait_id,
traits::FnTrait,
utils::{generics, Generics},
Adjust, Adjustment, AdtId, AutoBorrow, Binders, CallableDefId, FnPointer, FnSig, FnSubst,
Interner, Rawness, Scalar, Substitution, TraitEnvironment, TraitRef, Ty, TyBuilder, TyExt,
TyKind,
Adjust, Adjustment, AdtId, AutoBorrow, Binders, CallableDefId, FnAbi, FnPointer, FnSig,
FnSubst, Interner, Rawness, Scalar, Substitution, TraitEnvironment, TraitRef, Ty, TyBuilder,
TyExt, TyKind,
};
use super::{
@ -224,7 +224,11 @@ impl InferenceContext<'_> {
let sig_ty = TyKind::Function(FnPointer {
num_binders: 0,
sig: FnSig { abi: (), safety: chalk_ir::Safety::Safe, variadic: false },
sig: FnSig {
abi: FnAbi::RustCall,
safety: chalk_ir::Safety::Safe,
variadic: false,
},
substitution: FnSubst(
Substitution::from_iter(Interner, sig_tys.iter().cloned())
.shifted_in(Interner),

6
crates/hir-ty/src/interner.rs
View file

@ -3,8 +3,8 @@
use crate::{
chalk_db, tls, AliasTy, CanonicalVarKind, CanonicalVarKinds, ClosureId, Const, ConstData,
ConstScalar, Constraint, Constraints, FnDefId, GenericArg, GenericArgData, Goal, GoalData,
Goals, InEnvironment, Lifetime, LifetimeData, OpaqueTy, OpaqueTyId, ProgramClause,
ConstScalar, Constraint, Constraints, FnAbi, FnDefId, GenericArg, GenericArgData, Goal,
GoalData, Goals, InEnvironment, Lifetime, LifetimeData, OpaqueTy, OpaqueTyId, ProgramClause,
ProgramClauseData, ProgramClauses, ProjectionTy, QuantifiedWhereClause, QuantifiedWhereClauses,
Substitution, Ty, TyData, TyKind, VariableKind, VariableKinds,
};
@ -71,7 +71,7 @@ impl chalk_ir::interner::Interner for Interner {
type DefId = InternId;
type InternedAdtId = hir_def::AdtId;
type Identifier = TypeAliasId;
type FnAbi = ();
type FnAbi = FnAbi;
fn debug_adt_id(
type_kind_id: chalk_db::AdtId,

160
crates/hir-ty/src/lib.rs
View file

@ -351,10 +351,156 @@ pub struct CallableSig {
params_and_return: Arc<[Ty]>,
is_varargs: bool,
safety: Safety,
abi: FnAbi,
}
has_interner!(CallableSig);
#[derive(Debug, Copy, Clone, Eq)]
pub enum FnAbi {
Aapcs,
AapcsUnwind,
AmdgpuKernel,
AvrInterrupt,
AvrNonBlockingInterrupt,
C,
CCmseNonsecureCall,
CDecl,
CDeclUnwind,
CUnwind,
Efiapi,
Fastcall,
FastcallUnwind,
Msp430Interrupt,
PlatformIntrinsic,
PtxKernel,
RiscvInterruptM,
RiscvInterruptS,
Rust,
RustCall,
RustCold,
RustIntrinsic,
Stdcall,
StdcallUnwind,
System,
SystemUnwind,
Sysv64,
Sysv64Unwind,
Thiscall,
ThiscallUnwind,
Unadjusted,
Vectorcall,
VectorcallUnwind,
Wasm,
Win64,
Win64Unwind,
X86Interrupt,
Unknown,
}
impl PartialEq for FnAbi {
fn eq(&self, _other: &Self) -> bool {
// FIXME: Proper equality breaks `coercion::two_closures_lub` test
true
}
}
impl Hash for FnAbi {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
// Required because of the FIXME above and due to us implementing `Eq`, without this
// we would break the `Hash` + `Eq` contract
core::mem::discriminant(&Self::Unknown).hash(state);
}
}
impl FnAbi {
pub fn from_str(s: &str) -> FnAbi {
match s {
"aapcs-unwind" => FnAbi::AapcsUnwind,
"aapcs" => FnAbi::Aapcs,
"amdgpu-kernel" => FnAbi::AmdgpuKernel,
"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,
_ => FnAbi::Unknown,
}
}
pub fn as_str(self) -> &'static str {
match self {
FnAbi::Aapcs => "aapcs",
FnAbi::AapcsUnwind => "aapcs-unwind",
FnAbi::AmdgpuKernel => "amdgpu-kernel",
FnAbi::AvrInterrupt => "avr-interrupt",
FnAbi::AvrNonBlockingInterrupt => "avr-non-blocking-interrupt",
FnAbi::C => "C",
FnAbi::CCmseNonsecureCall => "C-cmse-nonsecure-call",
FnAbi::CDecl => "C-decl",
FnAbi::CDeclUnwind => "cdecl-unwind",
FnAbi::CUnwind => "C-unwind",
FnAbi::Efiapi => "efiapi",
FnAbi::Fastcall => "fastcall",
FnAbi::FastcallUnwind => "fastcall-unwind",
FnAbi::Msp430Interrupt => "msp430-interrupt",
FnAbi::PlatformIntrinsic => "platform-intrinsic",
FnAbi::PtxKernel => "ptx-kernel",
FnAbi::RiscvInterruptM => "riscv-interrupt-m",
FnAbi::RiscvInterruptS => "riscv-interrupt-s",
FnAbi::Rust => "Rust",
FnAbi::RustCall => "rust-call",
FnAbi::RustCold => "rust-cold",
FnAbi::RustIntrinsic => "rust-intrinsic",
FnAbi::Stdcall => "stdcall",
FnAbi::StdcallUnwind => "stdcall-unwind",
FnAbi::System => "system",
FnAbi::SystemUnwind => "system-unwind",
FnAbi::Sysv64 => "sysv64",
FnAbi::Sysv64Unwind => "sysv64-unwind",
FnAbi::Thiscall => "thiscall",
FnAbi::ThiscallUnwind => "thiscall-unwind",
FnAbi::Unadjusted => "unadjusted",
FnAbi::Vectorcall => "vectorcall",
FnAbi::VectorcallUnwind => "vectorcall-unwind",
FnAbi::Wasm => "wasm",
FnAbi::Win64 => "win64",
FnAbi::Win64Unwind => "win64-unwind",
FnAbi::X86Interrupt => "x86-interrupt",
FnAbi::Unknown => "unknown-abi",
}
}
}
/// A polymorphic function signature.
pub type PolyFnSig = Binders<CallableSig>;
@ -364,11 +510,17 @@ impl CallableSig {
ret: Ty,
is_varargs: bool,
safety: Safety,
abi: FnAbi,
) -> CallableSig {
params.push(ret);
CallableSig { params_and_return: params.into(), is_varargs, safety }
CallableSig { params_and_return: params.into(), is_varargs, safety, abi }
}
pub fn from_def(db: &dyn HirDatabase, def: FnDefId, substs: &Substitution) -> CallableSig {
let callable_def = db.lookup_intern_callable_def(def.into());
let sig = db.callable_item_signature(callable_def);
sig.substitute(Interner, substs)
}
pub fn from_fn_ptr(fn_ptr: &FnPointer) -> CallableSig {
CallableSig {
// FIXME: what to do about lifetime params? -> return PolyFnSig
@ -385,13 +537,14 @@ impl CallableSig {
),
is_varargs: fn_ptr.sig.variadic,
safety: fn_ptr.sig.safety,
abi: fn_ptr.sig.abi,
}
}
pub fn to_fn_ptr(&self) -> FnPointer {
FnPointer {
num_binders: 0,
sig: FnSig { abi: (), safety: self.safety, variadic: self.is_varargs },
sig: FnSig { abi: self.abi, safety: self.safety, variadic: self.is_varargs },
substitution: FnSubst(Substitution::from_iter(
Interner,
self.params_and_return.iter().cloned(),
@ -420,6 +573,7 @@ impl TypeFoldable<Interner> for CallableSig {
params_and_return: folded.into(),
is_varargs: self.is_varargs,
safety: self.safety,
abi: self.abi,
})
}
}
@ -704,7 +858,7 @@ pub fn callable_sig_from_fnonce(
let params =
args_ty.as_tuple()?.iter(Interner).map(|it| it.assert_ty_ref(Interner)).cloned().collect();
Some(CallableSig::from_params_and_return(params, ret_ty, false, Safety::Safe))
Some(CallableSig::from_params_and_return(params, ret_ty, false, Safety::Safe, FnAbi::RustCall))
}
struct PlaceholderCollector<'db> {

17
crates/hir-ty/src/lower.rs
View file

@ -58,7 +58,7 @@ use crate::{
InTypeConstIdMetadata,
},
AliasEq, AliasTy, Binders, BoundVar, CallableSig, Const, ConstScalar, DebruijnIndex, DynTy,
FnPointer, FnSig, FnSubst, ImplTraitId, Interner, ParamKind, PolyFnSig, ProjectionTy,
FnAbi, FnPointer, FnSig, FnSubst, ImplTraitId, Interner, ParamKind, PolyFnSig, ProjectionTy,
QuantifiedWhereClause, QuantifiedWhereClauses, ReturnTypeImplTrait, ReturnTypeImplTraits,
Substitution, TraitEnvironment, TraitRef, TraitRefExt, Ty, TyBuilder, TyKind, WhereClause,
};
@ -279,14 +279,14 @@ impl<'a> TyLoweringContext<'a> {
.intern(Interner)
}
TypeRef::Placeholder => TyKind::Error.intern(Interner),
&TypeRef::Fn(ref params, variadic, is_unsafe) => {
&TypeRef::Fn(ref params, variadic, is_unsafe, ref abi) => {
let substs = self.with_shifted_in(DebruijnIndex::ONE, |ctx| {
Substitution::from_iter(Interner, params.iter().map(|(_, tr)| ctx.lower_ty(tr)))
});
TyKind::Function(FnPointer {
num_binders: 0, // FIXME lower `for<'a> fn()` correctly
sig: FnSig {
abi: (),
abi: abi.as_deref().map_or(FnAbi::Rust, FnAbi::from_str),
safety: if is_unsafe { Safety::Unsafe } else { Safety::Safe },
variadic,
},
@ -1675,6 +1675,7 @@ 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),
);
make_binders(db, &generics, sig)
}
@ -1719,7 +1720,10 @@ fn fn_sig_for_struct_constructor(db: &dyn HirDatabase, def: StructId) -> PolyFnS
.with_type_param_mode(ParamLoweringMode::Variable);
let params = fields.iter().map(|(_, field)| ctx.lower_ty(&field.type_ref)).collect::<Vec<_>>();
let (ret, binders) = type_for_adt(db, def.into()).into_value_and_skipped_binders();
Binders::new(binders, CallableSig::from_params_and_return(params, ret, false, Safety::Safe))
Binders::new(
binders,
CallableSig::from_params_and_return(params, ret, false, Safety::Safe, FnAbi::RustCall),
)
}
/// Build the type of a tuple struct constructor.
@ -1749,7 +1753,10 @@ fn fn_sig_for_enum_variant_constructor(db: &dyn HirDatabase, def: EnumVariantId)
let params = fields.iter().map(|(_, field)| ctx.lower_ty(&field.type_ref)).collect::<Vec<_>>();
let (ret, binders) =
type_for_adt(db, def.lookup(db.upcast()).parent.into()).into_value_and_skipped_binders();
Binders::new(binders, CallableSig::from_params_and_return(params, ret, false, Safety::Safe))
Binders::new(
binders,
CallableSig::from_params_and_return(params, ret, false, Safety::Safe, FnAbi::RustCall),
)
}
/// Build the type of a tuple enum variant constructor.

1
crates/hir-ty/src/tests/coercion.rs
View file

@ -574,6 +574,7 @@ fn two_closures_lub() {
r#"
fn foo(c: i32) {
let add = |a: i32, b: i32| a + b;
//^^^^^^^^^^^^^^^^^^^^^^ impl Fn(i32, i32) -> i32
let sub = |a, b| a - b;
//^^^^^^^^^^^^ impl Fn(i32, i32) -> i32
if c > 42 { add } else { sub };

4
crates/hir-ty/src/tests/macros.rs
View file

@ -64,7 +64,7 @@ fn infer_macros_expanded() {
"#,
expect![[r#"
!0..17 '{Foo(v...,2,])}': Foo
!1..4 'Foo': Foo({unknown}) -> Foo
!1..4 'Foo': extern "rust-call" Foo({unknown}) -> Foo
!1..16 'Foo(vec![1,2,])': Foo
!5..15 'vec![1,2,]': {unknown}
155..181 '{ ...,2); }': ()
@ -97,7 +97,7 @@ fn infer_legacy_textual_scoped_macros_expanded() {
"#,
expect![[r#"
!0..17 '{Foo(v...,2,])}': Foo
!1..4 'Foo': Foo({unknown}) -> Foo
!1..4 'Foo': extern "rust-call" Foo({unknown}) -> Foo
!1..16 'Foo(vec![1,2,])': Foo
!5..15 'vec![1,2,]': {unknown}
194..250 '{ ...,2); }': ()

12
crates/hir-ty/src/tests/patterns.rs
View file

@ -210,13 +210,13 @@ fn infer_pattern_match_ergonomics() {
37..41 'A(n)': A<i32>
39..40 'n': &i32
44..49 '&A(1)': &A<i32>
45..46 'A': A<i32>(i32) -> A<i32>
45..46 'A': extern "rust-call" A<i32>(i32) -> A<i32>
45..49 'A(1)': A<i32>
47..48 '1': i32
59..63 'A(n)': A<i32>
61..62 'n': &mut i32
66..75 '&mut A(1)': &mut A<i32>
71..72 'A': A<i32>(i32) -> A<i32>
71..72 'A': extern "rust-call" A<i32>(i32) -> A<i32>
71..75 'A(1)': A<i32>
73..74 '1': i32
"#]],
@ -531,18 +531,18 @@ impl Foo {
56..64 'Self(s,)': Foo
61..62 's': &usize
67..75 '&Foo(0,)': &Foo
68..71 'Foo': Foo(usize) -> Foo
68..71 'Foo': extern "rust-call" Foo(usize) -> Foo
68..75 'Foo(0,)': Foo
72..73 '0': usize
89..97 'Self(s,)': Foo
94..95 's': &mut usize
100..112 '&mut Foo(0,)': &mut Foo
105..108 'Foo': Foo(usize) -> Foo
105..108 'Foo': extern "rust-call" Foo(usize) -> Foo
105..112 'Foo(0,)': Foo
109..110 '0': usize
126..134 'Self(s,)': Foo
131..132 's': usize
137..140 'Foo': Foo(usize) -> Foo
137..140 'Foo': extern "rust-call" Foo(usize) -> Foo
137..144 'Foo(0,)': Foo
141..142 '0': usize
"#]],
@ -916,7 +916,7 @@ fn foo(foo: Foo) {
48..51 'foo': Foo
62..84 'const ... 32) }': Foo
68..84 '{ Foo(... 32) }': Foo
70..73 'Foo': Foo(usize) -> Foo
70..73 'Foo': extern "rust-call" Foo(usize) -> Foo
70..82 'Foo(15 + 32)': Foo
74..76 '15': usize
74..81 '15 + 32': usize

8
crates/hir-ty/src/tests/regression.rs
View file

@ -644,7 +644,7 @@ fn issue_4953() {
"#,
expect![[r#"
58..72 '{ Self(0i64) }': Foo
60..64 'Self': Foo(i64) -> Foo
60..64 'Self': extern "rust-call" Foo(i64) -> Foo
60..70 'Self(0i64)': Foo
65..69 '0i64': i64
"#]],
@ -658,7 +658,7 @@ fn issue_4953() {
"#,
expect![[r#"
64..78 '{ Self(0i64) }': Foo<i64>
66..70 'Self': Foo<i64>(i64) -> Foo<i64>
66..70 'Self': extern "rust-call" Foo<i64>(i64) -> Foo<i64>
66..76 'Self(0i64)': Foo<i64>
71..75 '0i64': i64
"#]],
@ -858,7 +858,7 @@ fn main() {
94..96 '{}': ()
109..160 '{ ...10); }': ()
119..120 's': S<i32>
123..124 'S': S<i32>() -> S<i32>
123..124 'S': extern "rust-call" S<i32>() -> S<i32>
123..126 'S()': S<i32>
132..133 's': S<i32>
132..144 's.g(|_x| {})': ()
@ -1693,7 +1693,7 @@ fn main() {
37..48 'S(.., a, b)': S
43..44 'a': usize
46..47 'b': {unknown}
51..52 'S': S(usize) -> S
51..52 'S': extern "rust-call" S(usize) -> S
51..55 'S(1)': S
53..54 '1': usize
65..75 '(.., a, b)': (i32, {unknown})

54
crates/hir-ty/src/tests/simple.rs
View file

@ -236,14 +236,14 @@ fn test() {
expect![[r#"
71..153 '{ ...a.c; }': ()
81..82 'c': C
85..86 'C': C(usize) -> C
85..86 'C': extern "rust-call" C(usize) -> C
85..89 'C(1)': C
87..88 '1': usize
95..96 'B': B
106..107 'a': A
113..132 'A { b:...C(1) }': A
120..121 'B': B
126..127 'C': C(usize) -> C
126..127 'C': extern "rust-call" C(usize) -> C
126..130 'C(1)': C
128..129 '1': usize
138..139 'a': A
@ -303,14 +303,14 @@ unsafe fn baz(u: MyUnion) {
71..89 'MyUnio...o: 0 }': MyUnion
86..87 '0': u32
95..113 'unsafe...(u); }': ()
104..107 'baz': fn baz(MyUnion)
104..107 'baz': unsafe fn baz(MyUnion)
104..110 'baz(u)': ()
108..109 'u': MyUnion
122..123 'u': MyUnion
126..146 'MyUnio... 0.0 }': MyUnion
141..144 '0.0': f32
152..170 'unsafe...(u); }': ()
161..164 'baz': fn baz(MyUnion)
161..164 'baz': unsafe fn baz(MyUnion)
161..167 'baz(u)': ()
165..166 'u': MyUnion
188..189 'u': MyUnion
@ -625,12 +625,12 @@ impl E {
86..107 '{ ... }': ()
96..100 'Self': S1
134..158 '{ ... }': ()
144..148 'Self': S2(isize) -> S2
144..148 'Self': extern "rust-call" S2(isize) -> S2
144..151 'Self(1)': S2
149..150 '1': isize
184..230 '{ ... }': ()
194..202 'Self::V1': E
212..220 'Self::V2': V2(u32) -> E
212..220 'Self::V2': extern "rust-call" V2(u32) -> E
212..223 'Self::V2(1)': E
221..222 '1': u32
"#]],
@ -856,11 +856,11 @@ fn test() {
256..277 'A::foo...42))))': &i32
263..276 '&&B(B(A(42)))': &&B<B<A<i32>>>
264..276 '&B(B(A(42)))': &B<B<A<i32>>>
265..266 'B': B<B<A<i32>>>(B<A<i32>>) -> B<B<A<i32>>>
265..266 'B': extern "rust-call" B<B<A<i32>>>(B<A<i32>>) -> B<B<A<i32>>>
265..276 'B(B(A(42)))': B<B<A<i32>>>
267..268 'B': B<A<i32>>(A<i32>) -> B<A<i32>>
267..268 'B': extern "rust-call" B<A<i32>>(A<i32>) -> B<A<i32>>
267..275 'B(A(42))': B<A<i32>>
269..270 'A': A<i32>(i32) -> A<i32>
269..270 'A': extern "rust-call" A<i32>(i32) -> A<i32>
269..274 'A(42)': A<i32>
271..273 '42': i32
"#]],
@ -910,16 +910,16 @@ fn test(a: A<i32>) {
253..254 'a': A<i32>
264..310 '{ ...))); }': ()
274..275 't': &i32
278..279 'A': A<i32>(*mut i32) -> A<i32>
278..279 'A': extern "rust-call" A<i32>(*mut i32) -> A<i32>
278..292 'A(0 as *mut _)': A<i32>
278..307 'A(0 as...B(a)))': &i32
280..281 '0': i32
280..291 '0 as *mut _': *mut i32
297..306 '&&B(B(a))': &&B<B<A<i32>>>
298..306 '&B(B(a))': &B<B<A<i32>>>
299..300 'B': B<B<A<i32>>>(B<A<i32>>) -> B<B<A<i32>>>
299..300 'B': extern "rust-call" B<B<A<i32>>>(B<A<i32>>) -> B<B<A<i32>>>
299..306 'B(B(a))': B<B<A<i32>>>
301..302 'B': B<A<i32>>(A<i32>) -> B<A<i32>>
301..302 'B': extern "rust-call" B<A<i32>>(A<i32>) -> B<A<i32>>
301..305 'B(a)': B<A<i32>>
303..304 'a': A<i32>
"#]],
@ -1273,16 +1273,16 @@ fn infer_tuple_struct_generics() {
"#,
expect![[r#"
75..183 '{ ...one; }': ()
81..82 'A': A<i32>(i32) -> A<i32>
81..82 'A': extern "rust-call" A<i32>(i32) -> A<i32>
81..86 'A(42)': A<i32>
83..85 '42': i32
92..93 'A': A<u128>(u128) -> A<u128>
92..93 'A': extern "rust-call" A<u128>(u128) -> A<u128>
92..101 'A(42u128)': A<u128>
94..100 '42u128': u128
107..111 'Some': Some<&str>(&str) -> Option<&str>
107..111 'Some': extern "rust-call" Some<&str>(&str) -> Option<&str>
107..116 'Some("x")': Option<&str>
112..115 '"x"': &str
122..134 'Option::Some': Some<&str>(&str) -> Option<&str>
122..134 'Option::Some': extern "rust-call" Some<&str>(&str) -> Option<&str>
122..139 'Option...e("x")': Option<&str>
135..138 '"x"': &str
145..149 'None': Option<{unknown}>
@ -1568,7 +1568,7 @@ fn infer_type_alias() {
204..207 'z.y': i8
298..362 '{ ... &e; }': ()
308..309 'e': Enum
312..325 'm::Alias::Foo': Foo(u8) -> Enum
312..325 'm::Alias::Foo': extern "rust-call" Foo(u8) -> Enum
312..328 'm::Ali...Foo(0)': Enum
326..327 '0': u8
338..354 'm::Ali...Foo(x)': Enum
@ -2184,10 +2184,10 @@ fn main() {
103..231 '{ ... }); }': ()
109..161 'async ... }': impl Future<Output = Result<(), ()>>
125..139 'return Err(())': !
132..135 'Err': Err<(), ()>(()) -> Result<(), ()>
132..135 'Err': extern "rust-call" Err<(), ()>(()) -> Result<(), ()>
132..139 'Err(())': Result<(), ()>
136..138 '()': ()
149..151 'Ok': Ok<(), ()>(()) -> Result<(), ()>
149..151 'Ok': extern "rust-call" Ok<(), ()>(()) -> Result<(), ()>
149..155 'Ok(())': Result<(), ()>
152..154 '()': ()
167..171 'test': fn test<(), (), impl Fn() -> impl Future<Output = Result<(), ()>>, impl Future<Output = Result<(), ()>>>(impl Fn() -> impl Future<Output = Result<(), ()>>)
@ -2195,10 +2195,10 @@ fn main() {
172..227 '|| asy... }': impl Fn() -> impl Future<Output = Result<(), ()>>
175..227 'async ... }': impl Future<Output = Result<(), ()>>
191..205 'return Err(())': !
198..201 'Err': Err<(), ()>(()) -> Result<(), ()>
198..201 'Err': extern "rust-call" Err<(), ()>(()) -> Result<(), ()>
198..205 'Err(())': Result<(), ()>
202..204 '()': ()
215..217 'Ok': Ok<(), ()>(()) -> Result<(), ()>
215..217 'Ok': extern "rust-call" Ok<(), ()>(()) -> Result<(), ()>
215..221 'Ok(())': Result<(), ()>
218..220 '()': ()
"#]],
@ -2227,7 +2227,7 @@ fn infer_generic_from_later_assignment() {
94..127 '{ ... }': ()
104..107 'end': Option<bool>
104..120 'end = ...(true)': ()
110..114 'Some': Some<bool>(bool) -> Option<bool>
110..114 'Some': extern "rust-call" Some<bool>(bool) -> Option<bool>
110..120 'Some(true)': Option<bool>
115..119 'true': bool
"#]],
@ -2262,7 +2262,7 @@ fn infer_loop_break_with_val() {
111..121 'break None': !
117..121 'None': Option<bool>
142..158 'break ...(true)': !
148..152 'Some': Some<bool>(bool) -> Option<bool>
148..152 'Some': extern "rust-call" Some<bool>(bool) -> Option<bool>
148..158 'Some(true)': Option<bool>
153..157 'true': bool
"#]],
@ -2509,7 +2509,7 @@ fn generic_default_in_struct_literal() {
254..281 'OtherT...1i32 }': OtherThing<i32>
275..279 '1i32': i32
291..292 'b': OtherThing<i32>
295..310 'OtherThing::Two': Two<i32>(i32) -> OtherThing<i32>
295..310 'OtherThing::Two': extern "rust-call" Two<i32>(i32) -> OtherThing<i32>
295..316 'OtherT...(1i32)': OtherThing<i32>
311..315 '1i32': i32
"#]],
@ -2984,7 +2984,7 @@ fn f() {
expect![[r#"
72..166 '{ ... } }': ()
78..164 'match ... }': ()
84..92 'Foo::Bar': Bar(i32) -> Foo
84..92 'Foo::Bar': extern "rust-call" Bar(i32) -> Foo
84..95 'Foo::Bar(3)': Foo
93..94 '3': i32
106..119 'Qux::Bar(bar)': Foo
@ -3043,9 +3043,9 @@ fn main() {
322..324 '{}': Foo<T>
338..559 '{ ...r(); }': ()
348..353 'boxed': Box<Foo<i32>>
356..359 'Box': Box<Foo<i32>>(Foo<i32>) -> Box<Foo<i32>>
356..359 'Box': extern "rust-call" Box<Foo<i32>>(Foo<i32>) -> Box<Foo<i32>>
356..371 'Box(Foo(0_i32))': Box<Foo<i32>>
360..363 'Foo': Foo<i32>(i32) -> Foo<i32>
360..363 'Foo': extern "rust-call" Foo<i32>(i32) -> Foo<i32>
360..370 'Foo(0_i32)': Foo<i32>
364..369 '0_i32': i32
382..386 'bad1': &i32

26
crates/hir-ty/src/tests/traits.rs
View file

@ -522,7 +522,7 @@ fn test() -> u64 {
expect![[r#"
37..86 '{ ... a.1 }': u64
47..48 'a': S
51..52 'S': S(i32, u64) -> S
51..52 'S': extern "rust-call" S(i32, u64) -> S
51..58 'S(4, 6)': S
53..54 '4': i32
56..57 '6': u64
@ -548,7 +548,7 @@ fn test() -> u64 {
expect![[r#"
43..108 '{ ...0(2) }': u64
53..54 'a': S
57..58 'S': S(fn(u32) -> u64) -> S
57..58 'S': extern "rust-call" S(fn(u32) -> u64) -> S
57..74 'S(|i| ...s u64)': S
59..73 '|i| 2*i as u64': impl Fn(u32) -> u64
60..61 'i': u32
@ -1026,7 +1026,7 @@ fn test(x: impl Trait<u64>, y: &impl Trait<u32>) {
201..202 'x': impl Trait<u64>
208..209 'y': &impl Trait<u32>
219..220 'z': S<u16>
223..224 'S': S<u16>(u16) -> S<u16>
223..224 'S': extern "rust-call" S<u16>(u16) -> S<u16>
223..227 'S(1)': S<u16>
225..226 '1': u16
233..236 'bar': fn bar(S<u16>)
@ -1339,7 +1339,7 @@ fn foo<const C: u8, T>() -> (impl FnOnce(&str, T), impl Trait<u8>) {
142..147 'input': &str
149..150 't': T
152..154 '{}': ()
156..159 'Bar': Bar<u8>(u8) -> Bar<u8>
156..159 'Bar': extern "rust-call" Bar<u8>(u8) -> Bar<u8>
156..162 'Bar(C)': Bar<u8>
160..161 'C': u8
"#]],
@ -1958,7 +1958,7 @@ fn test() {
118..120 '{}': ()
136..255 '{ ... 1); }': ()
146..147 'x': Option<u32>
150..162 'Option::Some': Some<u32>(u32) -> Option<u32>
150..162 'Option::Some': extern "rust-call" Some<u32>(u32) -> Option<u32>
150..168 'Option...(1u32)': Option<u32>
163..167 '1u32': u32
174..175 'x': Option<u32>
@ -2514,7 +2514,7 @@ fn test() -> impl Trait<i32> {
178..180 '{}': ()
213..309 '{ ...t()) }': S<i32>
223..225 's1': S<u32>
228..229 'S': S<u32>(u32) -> S<u32>
228..229 'S': extern "rust-call" S<u32>(u32) -> S<u32>
228..240 'S(default())': S<u32>
230..237 'default': fn default<u32>() -> u32
230..239 'default()': u32
@ -2524,11 +2524,11 @@ fn test() -> impl Trait<i32> {
263..264 'x': i32
272..275 'bar': fn bar<i32>(S<i32>) -> i32
272..289 'bar(S(...lt()))': i32
276..277 'S': S<i32>(i32) -> S<i32>
276..277 'S': extern "rust-call" S<i32>(i32) -> S<i32>
276..288 'S(default())': S<i32>
278..285 'default': fn default<i32>() -> i32
278..287 'default()': i32
295..296 'S': S<i32>(i32) -> S<i32>
295..296 'S': extern "rust-call" S<i32>(i32) -> S<i32>
295..307 'S(default())': S<i32>
297..304 'default': fn default<i32>() -> i32
297..306 'default()': i32
@ -2758,7 +2758,7 @@ fn main() {
1036..1041 'x > 0': bool
1040..1041 '0': i32
1042..1060 '{ Some...u32) }': Option<u32>
1044..1048 'Some': Some<u32>(u32) -> Option<u32>
1044..1048 'Some': extern "rust-call" Some<u32>(u32) -> Option<u32>
1044..1058 'Some(x as u32)': Option<u32>
1049..1050 'x': i32
1049..1057 'x as u32': u32
@ -2894,9 +2894,9 @@ fn test() {
175..185 'foo.test()': bool
191..194 'bar': fn bar<{unknown}>({unknown}) -> {unknown}
191..201 'bar.test()': bool
207..213 'Struct': Struct(usize) -> Struct
207..213 'Struct': extern "rust-call" Struct(usize) -> Struct
207..220 'Struct.test()': bool
226..239 'Enum::Variant': Variant(usize) -> Enum
226..239 'Enum::Variant': extern "rust-call" Variant(usize) -> Enum
226..246 'Enum::...test()': bool
"#]],
);
@ -3475,12 +3475,12 @@ fn main(){
95..99 'self': Wrapper
101..104 'rhs': u32
122..150 '{ ... }': Wrapper
132..139 'Wrapper': Wrapper(u32) -> Wrapper
132..139 'Wrapper': extern "rust-call" Wrapper(u32) -> Wrapper
132..144 'Wrapper(rhs)': Wrapper
140..143 'rhs': u32
162..248 '{ ...um; }': ()
172..179 'wrapped': Wrapper
182..189 'Wrapper': Wrapper(u32) -> Wrapper
182..189 'Wrapper': extern "rust-call" Wrapper(u32) -> Wrapper
182..193 'Wrapper(10)': Wrapper
190..192 '10': u32
203..206 'num': u32

6
crates/syntax/src/ast/node_ext.rs
View file

@ -53,6 +53,12 @@ fn text_of_first_token(node: &SyntaxNode) -> TokenText<'_> {
}
}
impl ast::Abi {
pub fn abi_string(&self) -> Option<ast::String> {
support::token(&self.syntax, SyntaxKind::STRING).and_then(ast::String::cast)
}
}
impl ast::HasModuleItem for ast::StmtList {}
impl ast::BlockExpr {