rustc_public/unstable/convert/stable/
abi.rs

1//! Conversion of internal Rust compiler `rustc_target` and `rustc_abi` items to stable ones.
2
3#![allow(rustc::usage_of_qualified_ty)]
4
5use rustc_abi::{ArmCall, CanonAbi, InterruptKind, X86Call};
6use rustc_middle::ty;
7use rustc_public_bridge::Tables;
8use rustc_public_bridge::context::CompilerCtxt;
9use rustc_target::callconv;
10
11use crate::IndexedVal;
12use crate::abi::{
13    AddressSpace, ArgAbi, ArgAttributes, ArgExtension, CallConvention, CastTarget, FieldsShape,
14    FloatLength, FnAbi, IntegerLength, IntegerType, Layout, LayoutShape, NumScalableVectors,
15    PassMode, Primitive, Reg, RegKind, ReprFlags, ReprOptions, Scalar, TagEncoding, TyAndLayout,
16    Uniform, ValueRepr, VariantFields, VariantsShape, WrappingRange,
17};
18use crate::compiler_interface::BridgeTys;
19use crate::target::MachineSize as Size;
20use crate::ty::{Align, VariantIdx};
21use crate::unstable::Stable;
22
23impl<'tcx> Stable<'tcx> for rustc_abi::VariantIdx {
24    type T = VariantIdx;
25    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
26        VariantIdx::to_val(self.as_usize())
27    }
28}
29
30impl<'tcx> Stable<'tcx> for rustc_abi::Endian {
31    type T = crate::target::Endian;
32
33    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
34        match self {
35            rustc_abi::Endian::Little => crate::target::Endian::Little,
36            rustc_abi::Endian::Big => crate::target::Endian::Big,
37        }
38    }
39}
40
41impl<'tcx> Stable<'tcx> for rustc_abi::TyAndLayout<'tcx, ty::Ty<'tcx>> {
42    type T = TyAndLayout;
43
44    fn stable<'cx>(
45        &self,
46        tables: &mut Tables<'cx, BridgeTys>,
47        cx: &CompilerCtxt<'cx, BridgeTys>,
48    ) -> Self::T {
49        TyAndLayout { ty: self.ty.stable(tables, cx), layout: self.layout.stable(tables, cx) }
50    }
51}
52
53impl<'tcx> Stable<'tcx> for rustc_abi::Layout<'tcx> {
54    type T = Layout;
55
56    fn stable<'cx>(
57        &self,
58        tables: &mut Tables<'cx, BridgeTys>,
59        cx: &CompilerCtxt<'cx, BridgeTys>,
60    ) -> Self::T {
61        tables.layout_id(cx.lift(*self))
62    }
63}
64
65impl<'tcx> Stable<'tcx> for rustc_abi::LayoutData<rustc_abi::FieldIdx, rustc_abi::VariantIdx> {
66    type T = LayoutShape;
67
68    fn stable<'cx>(
69        &self,
70        tables: &mut Tables<'cx, BridgeTys>,
71        cx: &CompilerCtxt<'cx, BridgeTys>,
72    ) -> Self::T {
73        LayoutShape {
74            fields: self.fields.stable(tables, cx),
75            variants: self.variants.stable(tables, cx),
76            value_repr: self.backend_repr.stable(tables, cx),
77            abi_align: self.align.abi.stable(tables, cx),
78            size: self.size.stable(tables, cx),
79        }
80    }
81}
82
83impl<'tcx> Stable<'tcx> for callconv::FnAbi<'tcx, ty::Ty<'tcx>> {
84    type T = FnAbi;
85
86    fn stable<'cx>(
87        &self,
88        tables: &mut Tables<'cx, BridgeTys>,
89        cx: &CompilerCtxt<'cx, BridgeTys>,
90    ) -> Self::T {
91        if !(self.args.len() >= self.fixed_count as usize) {
    ::core::panicking::panic("assertion failed: self.args.len() >= self.fixed_count as usize")
};assert!(self.args.len() >= self.fixed_count as usize);
92        if !(!self.c_variadic ||
            #[allow(non_exhaustive_omitted_patterns)] match self.conv {
                CanonAbi::C => true,
                _ => false,
            }) {
    ::core::panicking::panic("assertion failed: !self.c_variadic || matches!(self.conv, CanonAbi::C)")
};assert!(!self.c_variadic || matches!(self.conv, CanonAbi::C));
93        FnAbi {
94            args: self.args.as_ref().stable(tables, cx),
95            ret: self.ret.stable(tables, cx),
96            fixed_count: self.fixed_count,
97            conv: self.conv.stable(tables, cx),
98            c_variadic: self.c_variadic,
99        }
100    }
101}
102
103impl<'tcx> Stable<'tcx> for callconv::ArgAbi<'tcx, ty::Ty<'tcx>> {
104    type T = ArgAbi;
105
106    fn stable<'cx>(
107        &self,
108        tables: &mut Tables<'cx, BridgeTys>,
109        cx: &CompilerCtxt<'cx, BridgeTys>,
110    ) -> Self::T {
111        ArgAbi {
112            ty: self.layout.ty.stable(tables, cx),
113            layout: self.layout.layout.stable(tables, cx),
114            mode: self.mode.stable(tables, cx),
115        }
116    }
117}
118
119impl<'tcx> Stable<'tcx> for CanonAbi {
120    type T = CallConvention;
121
122    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
123        match self {
124            CanonAbi::C => CallConvention::C,
125            CanonAbi::Rust => CallConvention::Rust,
126            CanonAbi::RustCold => CallConvention::Cold,
127            CanonAbi::RustPreserveNone => CallConvention::PreserveNone,
128            CanonAbi::RustTail => CallConvention::Tail,
129            CanonAbi::Custom => CallConvention::Custom,
130            CanonAbi::Swift => CallConvention::Swift,
131            CanonAbi::Arm(arm_call) => match arm_call {
132                ArmCall::Aapcs => CallConvention::ArmAapcs,
133                ArmCall::CCmseNonSecureCall => CallConvention::CCmseNonSecureCall,
134                ArmCall::CCmseNonSecureEntry => CallConvention::CCmseNonSecureEntry,
135            },
136            CanonAbi::GpuKernel => CallConvention::GpuKernel,
137            CanonAbi::Interrupt(interrupt_kind) => match interrupt_kind {
138                InterruptKind::Avr => CallConvention::AvrInterrupt,
139                InterruptKind::AvrNonBlocking => CallConvention::AvrNonBlockingInterrupt,
140                InterruptKind::Msp430 => CallConvention::Msp430Intr,
141                InterruptKind::RiscvMachine | InterruptKind::RiscvSupervisor => {
142                    CallConvention::RiscvInterrupt
143                }
144                InterruptKind::X86 => CallConvention::X86Intr,
145            },
146            CanonAbi::X86(x86_call) => match x86_call {
147                X86Call::Fastcall => CallConvention::X86Fastcall,
148                X86Call::Stdcall => CallConvention::X86Stdcall,
149                X86Call::SysV64 => CallConvention::X86_64SysV,
150                X86Call::Thiscall => CallConvention::X86ThisCall,
151                X86Call::Vectorcall => CallConvention::X86VectorCall,
152                X86Call::Win64 => CallConvention::X86_64Win64,
153            },
154        }
155    }
156}
157
158impl<'tcx> Stable<'tcx> for callconv::PassMode {
159    type T = PassMode;
160
161    fn stable<'cx>(
162        &self,
163        tables: &mut Tables<'cx, BridgeTys>,
164        cx: &CompilerCtxt<'cx, BridgeTys>,
165    ) -> Self::T {
166        match self {
167            callconv::PassMode::Ignore => PassMode::Ignore,
168            callconv::PassMode::Direct(attr) => PassMode::Direct(attr.stable(tables, cx)),
169            callconv::PassMode::Pair(first, second) => {
170                PassMode::Pair(first.stable(tables, cx), second.stable(tables, cx))
171            }
172            callconv::PassMode::Cast { pad_i32_count, cast } => {
173                PassMode::Cast { pad_i32_count: *pad_i32_count, cast: cast.stable(tables, cx) }
174            }
175            callconv::PassMode::Indirect { attrs, meta_attrs, on_stack } => PassMode::Indirect {
176                attrs: attrs.stable(tables, cx),
177                meta_attrs: meta_attrs.map(|a| a.stable(tables, cx)),
178                on_stack: *on_stack,
179            },
180        }
181    }
182}
183
184impl<'tcx> Stable<'tcx> for callconv::CastTarget {
185    type T = CastTarget;
186
187    fn stable<'cx>(
188        &self,
189        tables: &mut Tables<'cx, BridgeTys>,
190        cx: &CompilerCtxt<'cx, BridgeTys>,
191    ) -> Self::T {
192        CastTarget {
193            prefix: self.prefix.iter().map(|reg| reg.stable(tables, cx)).collect(),
194            rest_offset: self.rest_offset.map(|offset| Size::from_bits(offset.bits_usize())),
195            rest: self.rest.stable(tables, cx),
196        }
197    }
198}
199
200impl<'tcx> Stable<'tcx> for callconv::Uniform {
201    type T = Uniform;
202
203    fn stable<'cx>(
204        &self,
205        tables: &mut Tables<'cx, BridgeTys>,
206        cx: &CompilerCtxt<'cx, BridgeTys>,
207    ) -> Self::T {
208        Uniform {
209            unit: self.unit.stable(tables, cx),
210            total: Size::from_bits(self.total.bits_usize()),
211            is_consecutive: self.is_consecutive,
212        }
213    }
214}
215
216impl<'tcx> Stable<'tcx> for rustc_abi::Reg {
217    type T = Reg;
218
219    fn stable<'cx>(
220        &self,
221        _: &mut Tables<'cx, BridgeTys>,
222        _: &CompilerCtxt<'cx, BridgeTys>,
223    ) -> Self::T {
224        Reg {
225            kind: match self.kind {
226                rustc_abi::RegKind::Integer => RegKind::Integer,
227                rustc_abi::RegKind::Float => RegKind::Float,
228                rustc_abi::RegKind::Vector { .. } => RegKind::Vector,
229            },
230            size: Size::from_bits(self.size.bits_usize()),
231        }
232    }
233}
234
235impl<'tcx> Stable<'tcx> for callconv::ArgAttributes {
236    type T = ArgAttributes;
237
238    fn stable<'cx>(
239        &self,
240        _: &mut Tables<'cx, BridgeTys>,
241        _: &CompilerCtxt<'cx, BridgeTys>,
242    ) -> Self::T {
243        ArgAttributes {
244            arg_ext: match self.arg_ext {
245                callconv::ArgExtension::None => ArgExtension::None,
246                callconv::ArgExtension::Zext => ArgExtension::Zext,
247                callconv::ArgExtension::Sext => ArgExtension::Sext,
248            },
249            pointee_size: Size::from_bits(self.pointee_size.bits_usize()),
250            pointee_align: self.pointee_align.map(|a| a.bytes()),
251        }
252    }
253}
254
255impl<'tcx> Stable<'tcx> for rustc_abi::FieldsShape<rustc_abi::FieldIdx> {
256    type T = FieldsShape;
257
258    fn stable<'cx>(
259        &self,
260        tables: &mut Tables<'cx, BridgeTys>,
261        cx: &CompilerCtxt<'cx, BridgeTys>,
262    ) -> Self::T {
263        match self {
264            rustc_abi::FieldsShape::Primitive => FieldsShape::Primitive,
265            rustc_abi::FieldsShape::Union(count) => FieldsShape::Union(*count),
266            rustc_abi::FieldsShape::Array { stride, count } => {
267                FieldsShape::Array { stride: stride.stable(tables, cx), count: *count }
268            }
269            rustc_abi::FieldsShape::Arbitrary { offsets, .. } => {
270                FieldsShape::Arbitrary { offsets: offsets.iter().as_slice().stable(tables, cx) }
271            }
272        }
273    }
274}
275
276impl<'tcx> Stable<'tcx> for rustc_abi::Variants<rustc_abi::FieldIdx, rustc_abi::VariantIdx> {
277    type T = VariantsShape;
278
279    fn stable<'cx>(
280        &self,
281        tables: &mut Tables<'cx, BridgeTys>,
282        cx: &CompilerCtxt<'cx, BridgeTys>,
283    ) -> Self::T {
284        match self {
285            rustc_abi::Variants::Single { index } => {
286                VariantsShape::Single { index: index.stable(tables, cx) }
287            }
288            rustc_abi::Variants::Empty => VariantsShape::Empty,
289            rustc_abi::Variants::Multiple { tag, tag_encoding, tag_field, variants } => {
290                VariantsShape::Multiple {
291                    tag: tag.stable(tables, cx),
292                    tag_encoding: tag_encoding.stable(tables, cx),
293                    tag_field: tag_field.stable(tables, cx),
294                    variants: variants
295                        .iter()
296                        .map(|v| VariantFields {
297                            offsets: v.field_offsets.iter().as_slice().stable(tables, cx),
298                        })
299                        .collect(),
300                }
301            }
302        }
303    }
304}
305
306impl<'tcx> Stable<'tcx> for rustc_abi::TagEncoding<rustc_abi::VariantIdx> {
307    type T = TagEncoding;
308
309    fn stable<'cx>(
310        &self,
311        tables: &mut Tables<'cx, BridgeTys>,
312        cx: &CompilerCtxt<'cx, BridgeTys>,
313    ) -> Self::T {
314        match self {
315            rustc_abi::TagEncoding::Direct => TagEncoding::Direct,
316            rustc_abi::TagEncoding::Niche { untagged_variant, niche_variants, niche_start } => {
317                TagEncoding::Niche {
318                    untagged_variant: untagged_variant.stable(tables, cx),
319                    niche_variants: niche_variants.stable(tables, cx),
320                    niche_start: *niche_start,
321                }
322            }
323        }
324    }
325}
326
327impl<'tcx> Stable<'tcx> for rustc_abi::NumScalableVectors {
328    type T = NumScalableVectors;
329
330    fn stable<'cx>(
331        &self,
332        _tables: &mut Tables<'cx, BridgeTys>,
333        _cx: &CompilerCtxt<'cx, BridgeTys>,
334    ) -> Self::T {
335        NumScalableVectors(self.0)
336    }
337}
338
339impl<'tcx> Stable<'tcx> for rustc_abi::BackendLaneCount {
340    type T = u64;
341
342    fn stable<'cx>(
343        &self,
344        _tables: &mut Tables<'cx, BridgeTys>,
345        _cx: &CompilerCtxt<'cx, BridgeTys>,
346    ) -> Self::T {
347        self.as_u64()
348    }
349}
350
351impl<'tcx> Stable<'tcx> for rustc_abi::BackendRepr {
352    type T = ValueRepr;
353
354    fn stable<'cx>(
355        &self,
356        tables: &mut Tables<'cx, BridgeTys>,
357        cx: &CompilerCtxt<'cx, BridgeTys>,
358    ) -> Self::T {
359        match *self {
360            rustc_abi::BackendRepr::Scalar(scalar) => ValueRepr::Scalar(scalar.stable(tables, cx)),
361            rustc_abi::BackendRepr::ScalarPair { a: first, b: second, b_offset: second_offset } => {
362                ValueRepr::ScalarPair {
363                    a: first.stable(tables, cx),
364                    b: second.stable(tables, cx),
365                    b_offset: second_offset.stable(tables, cx),
366                }
367            }
368            rustc_abi::BackendRepr::SimdVector { element, count } => ValueRepr::Vector {
369                element: element.stable(tables, cx),
370                count: count.stable(tables, cx),
371            },
372            rustc_abi::BackendRepr::SimdScalableVector { element, count, number_of_vectors } => {
373                ValueRepr::ScalableVector {
374                    element: element.stable(tables, cx),
375                    count: count.stable(tables, cx),
376                    number_of_vectors: number_of_vectors.stable(tables, cx),
377                }
378            }
379            rustc_abi::BackendRepr::Memory { sized } => ValueRepr::Aggregate { sized },
380        }
381    }
382}
383
384impl<'tcx> Stable<'tcx> for rustc_abi::Size {
385    type T = Size;
386
387    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
388        Size::from_bits(self.bits_usize())
389    }
390}
391
392impl<'tcx> Stable<'tcx> for rustc_abi::Align {
393    type T = Align;
394
395    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
396        self.bytes()
397    }
398}
399
400impl<'tcx> Stable<'tcx> for rustc_abi::Scalar {
401    type T = Scalar;
402
403    fn stable<'cx>(
404        &self,
405        tables: &mut Tables<'cx, BridgeTys>,
406        cx: &CompilerCtxt<'cx, BridgeTys>,
407    ) -> Self::T {
408        match self {
409            rustc_abi::Scalar::Initialized { value, valid_range } => Scalar::Initialized {
410                value: value.stable(tables, cx),
411                valid_range: valid_range.stable(tables, cx),
412            },
413            rustc_abi::Scalar::Union { value } => Scalar::Union { value: value.stable(tables, cx) },
414        }
415    }
416}
417
418impl<'tcx> Stable<'tcx> for rustc_abi::Primitive {
419    type T = Primitive;
420
421    fn stable<'cx>(
422        &self,
423        tables: &mut Tables<'cx, BridgeTys>,
424        cx: &CompilerCtxt<'cx, BridgeTys>,
425    ) -> Self::T {
426        match self {
427            rustc_abi::Primitive::Int(length, signed) => {
428                Primitive::Int { length: length.stable(tables, cx), signed: *signed }
429            }
430            rustc_abi::Primitive::Float(length) => {
431                Primitive::Float { length: length.stable(tables, cx) }
432            }
433            rustc_abi::Primitive::Pointer(space) => Primitive::Pointer(space.stable(tables, cx)),
434        }
435    }
436}
437
438impl<'tcx> Stable<'tcx> for rustc_abi::AddressSpace {
439    type T = AddressSpace;
440
441    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
442        AddressSpace(self.0)
443    }
444}
445
446impl<'tcx> Stable<'tcx> for rustc_abi::Integer {
447    type T = IntegerLength;
448
449    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
450        match self {
451            rustc_abi::Integer::I8 => IntegerLength::I8,
452            rustc_abi::Integer::I16 => IntegerLength::I16,
453            rustc_abi::Integer::I32 => IntegerLength::I32,
454            rustc_abi::Integer::I64 => IntegerLength::I64,
455            rustc_abi::Integer::I128 => IntegerLength::I128,
456        }
457    }
458}
459
460impl<'tcx> Stable<'tcx> for rustc_abi::Float {
461    type T = FloatLength;
462
463    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
464        match self {
465            rustc_abi::Float::F16 => FloatLength::F16,
466            rustc_abi::Float::F32 => FloatLength::F32,
467            rustc_abi::Float::F64 => FloatLength::F64,
468            rustc_abi::Float::F128 => FloatLength::F128,
469        }
470    }
471}
472
473impl<'tcx> Stable<'tcx> for rustc_abi::WrappingRange {
474    type T = WrappingRange;
475
476    fn stable(&self, _: &mut Tables<'_, BridgeTys>, _: &CompilerCtxt<'_, BridgeTys>) -> Self::T {
477        WrappingRange { start: self.start, end: self.end }
478    }
479}
480
481impl<'tcx> Stable<'tcx> for rustc_abi::ReprFlags {
482    type T = ReprFlags;
483
484    fn stable<'cx>(
485        &self,
486        _tables: &mut Tables<'cx, BridgeTys>,
487        _cx: &CompilerCtxt<'cx, BridgeTys>,
488    ) -> Self::T {
489        ReprFlags {
490            is_simd: self.intersects(Self::IS_SIMD),
491            is_c: self.intersects(Self::IS_C),
492            is_transparent: self.intersects(Self::IS_TRANSPARENT),
493            is_linear: self.intersects(Self::IS_LINEAR),
494        }
495    }
496}
497
498impl<'tcx> Stable<'tcx> for rustc_abi::IntegerType {
499    type T = IntegerType;
500
501    fn stable<'cx>(
502        &self,
503        tables: &mut Tables<'cx, BridgeTys>,
504        cx: &CompilerCtxt<'cx, BridgeTys>,
505    ) -> Self::T {
506        match self {
507            rustc_abi::IntegerType::Pointer(signed) => IntegerType::Pointer { is_signed: *signed },
508            rustc_abi::IntegerType::Fixed(integer, signed) => {
509                IntegerType::Fixed { length: integer.stable(tables, cx), is_signed: *signed }
510            }
511        }
512    }
513}
514
515impl<'tcx> Stable<'tcx> for rustc_abi::ReprOptions {
516    type T = ReprOptions;
517
518    fn stable<'cx>(
519        &self,
520        tables: &mut Tables<'cx, BridgeTys>,
521        cx: &CompilerCtxt<'cx, BridgeTys>,
522    ) -> Self::T {
523        ReprOptions {
524            int: self.int.map(|int| int.stable(tables, cx)),
525            align: self.align.map(|align| align.stable(tables, cx)),
526            pack: self.pack.map(|pack| pack.stable(tables, cx)),
527            flags: self.flags.stable(tables, cx),
528        }
529    }
530}
rustc_public/unstable/convert/stable/abi.rs

rustc_public/unstable/convert/stable/
abi.rs
