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carbon-lang/toolchain/lower/testdata/class/adapt.carbon
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Richard Smith cefa0397bb More fixes to package and library fingerprinting. (#7297) 
Fix import logic to make all imported packages be children of the
`NameScopeId::Package` scope. Previously, indirectly-imported packages
would end up as children of their importing package's scope, which
resulted in them not being treated as packages at all, and in particular
not being fingerprinted as packages.

Fixing that caused a failure in the fingerprinting logic as we started
to encounter packages with no correspoding import scopes. Instead of
looking for import scopes, use a simpler mechanism to map packages to
their package names, and clean up.

Unfortunately the latter change churns all the fingerprints again :(
Hopefully this is the last time for a while.
2026-06-04 17:41:46 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/class/adapt.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/class/adapt.carbon
// --- adapt_class.carbon
library "[[@TEST_NAME]]";
class PairOfInts {
var a: i32;
var b: i32;
fn Make() -> Self {
return {.a = 1, .b = 2};
}
}
class PairAdapter {
adapt PairOfInts;
fn Make() -> Self {
return PairOfInts.Make() as Self;
}
fn GetB[self: Self]() -> i32 {
let pi: PairOfInts = self as PairOfInts;
return pi.b;
}
}
fn Use() -> i32 {
var pa: PairAdapter = PairAdapter.Make();
return pa.GetB();
}
// --- adapt_int.carbon
library "[[@TEST_NAME]]";
class Int {
adapt i32;
impl as Core.Copy {
fn Op[self: Self]() -> Self { return (self as i32).(Core.Copy.Op)() as Int; }
}
}
fn DoStuff(a: Int) -> Int {
return a;
}
// CHECK:STDOUT: ; ModuleID = 'adapt_class.carbon'
// CHECK:STDOUT: source_filename = "adapt_class.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: @PairOfInts.val.loc9_28 = internal constant { i32, i32 } { i32 1, i32 2 }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CMake.PairOfInts.Main(ptr sret({ i32, i32 }) %return) #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc9_27.3.a = getelementptr inbounds nuw { i32, i32 }, ptr %return, i32 0, i32 0, !dbg !8
// CHECK:STDOUT: %.loc9_27.6.b = getelementptr inbounds nuw { i32, i32 }, ptr %return, i32 0, i32 1, !dbg !8
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %return, ptr align 4 @PairOfInts.val.loc9_28, i64 8, i1 false), !dbg !9
// CHECK:STDOUT: ret void, !dbg !9
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CMake.PairAdapter.Main(ptr sret({ i32, i32 }) %return) #0 !dbg !10 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_CMake.PairOfInts.Main(ptr %return), !dbg !11
// CHECK:STDOUT: ret void, !dbg !12
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @_CGetB.PairAdapter.Main(ptr %self) #0 !dbg !13 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc22_14.1.b = getelementptr inbounds nuw { i32, i32 }, ptr %self, i32 0, i32 1, !dbg !19
// CHECK:STDOUT: %.loc22_14.2 = load i32, ptr %.loc22_14.1.b, align 4, !dbg !19
// CHECK:STDOUT: ret i32 %.loc22_14.2, !dbg !20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @_CUse.Main() #0 !dbg !21 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %pa.var = alloca { i32, i32 }, align 4, !dbg !24
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %pa.var), !dbg !24
// CHECK:STDOUT: call void @_CMake.PairAdapter.Main(ptr %pa.var), !dbg !25
// CHECK:STDOUT: %PairAdapter.GetB.call = call i32 @_CGetB.PairAdapter.Main(ptr %pa.var), !dbg !26
// CHECK:STDOUT: call void @"_COp.d8149a936c4ca850:core.Destroy.Core"(ptr %pa.var), !dbg !24
// CHECK:STDOUT: ret i32 %PairAdapter.GetB.call, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.5e27612b9dd31a14:core.Destroy.Core"(ptr %self) #0 !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !33
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.f30036b66b652106:core.Destroy.Core"(ptr %self) #0 !dbg !34 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !39
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.d8149a936c4ca850:core.Destroy.Core"(ptr %self) #0 !dbg !40 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !43
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "adapt_class.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Make", linkageName: "_CMake.PairOfInts.Main", scope: null, file: !3, line: 8, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{!7}
// CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !8 = !DILocation(line: 9, column: 12, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 9, column: 5, scope: !4)
// CHECK:STDOUT: !10 = distinct !DISubprogram(name: "Make", linkageName: "_CMake.PairAdapter.Main", scope: null, file: !3, line: 16, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !11 = !DILocation(line: 17, column: 12, scope: !10)
// CHECK:STDOUT: !12 = !DILocation(line: 17, column: 5, scope: !10)
// CHECK:STDOUT: !13 = distinct !DISubprogram(name: "GetB", linkageName: "_CGetB.PairAdapter.Main", scope: null, file: !3, line: 20, type: !14, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !17)
// CHECK:STDOUT: !14 = !DISubroutineType(types: !15)
// CHECK:STDOUT: !15 = !{!16, !7}
// CHECK:STDOUT: !16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !17 = !{!18}
// CHECK:STDOUT: !18 = !DILocalVariable(arg: 1, scope: !13, type: !7)
// CHECK:STDOUT: !19 = !DILocation(line: 22, column: 12, scope: !13)
// CHECK:STDOUT: !20 = !DILocation(line: 22, column: 5, scope: !13)
// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Use", linkageName: "_CUse.Main", scope: null, file: !3, line: 26, type: !22, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !22 = !DISubroutineType(types: !23)
// CHECK:STDOUT: !23 = !{!16}
// CHECK:STDOUT: !24 = !DILocation(line: 27, column: 3, scope: !21)
// CHECK:STDOUT: !25 = !DILocation(line: 27, column: 25, scope: !21)
// CHECK:STDOUT: !26 = !DILocation(line: 28, column: 10, scope: !21)
// CHECK:STDOUT: !27 = !DILocation(line: 28, column: 3, scope: !21)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "Op", linkageName: "_COp.5e27612b9dd31a14:core.Destroy.Core", scope: null, file: !3, line: 27, type: !29, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !31)
// CHECK:STDOUT: !29 = !DISubroutineType(types: !30)
// CHECK:STDOUT: !30 = !{null, !16}
// CHECK:STDOUT: !31 = !{!32}
// CHECK:STDOUT: !32 = !DILocalVariable(arg: 1, scope: !28, type: !16)
// CHECK:STDOUT: !33 = !DILocation(line: 27, column: 3, scope: !28)
// CHECK:STDOUT: !34 = distinct !DISubprogram(name: "Op", linkageName: "_COp.f30036b66b652106:core.Destroy.Core", scope: null, file: !3, line: 27, type: !35, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !37)
// CHECK:STDOUT: !35 = !DISubroutineType(types: !36)
// CHECK:STDOUT: !36 = !{null, !7}
// CHECK:STDOUT: !37 = !{!38}
// CHECK:STDOUT: !38 = !DILocalVariable(arg: 1, scope: !34, type: !7)
// CHECK:STDOUT: !39 = !DILocation(line: 27, column: 3, scope: !34)
// CHECK:STDOUT: !40 = distinct !DISubprogram(name: "Op", linkageName: "_COp.d8149a936c4ca850:core.Destroy.Core", scope: null, file: !3, line: 27, type: !35, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !41)
// CHECK:STDOUT: !41 = !{!42}
// CHECK:STDOUT: !42 = !DILocalVariable(arg: 1, scope: !40, type: !7)
// CHECK:STDOUT: !43 = !DILocation(line: 27, column: 3, scope: !40)
// CHECK:STDOUT: ; ModuleID = 'adapt_int.carbon'
// CHECK:STDOUT: source_filename = "adapt_int.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @"_COp.Int.Main:Copy.Core"(i32 %self) #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret i32 %self, !dbg !10
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @_CDoStuff.Main(i32 %a) #0 !dbg !11 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call = call i32 @"_COp.Int.Main:Copy.Core"(i32 %a), !dbg !14
// CHECK:STDOUT: ret i32 %Int.as.Copy.impl.Op.call, !dbg !15
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "adapt_int.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Op", linkageName: "_COp.Int.Main:Copy.Core", scope: null, file: !3, line: 8, type: !5, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !8)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{!7, !7}
// CHECK:STDOUT: !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !8 = !{!9}
// CHECK:STDOUT: !9 = !DILocalVariable(arg: 1, scope: !4, type: !7)
// CHECK:STDOUT: !10 = !DILocation(line: 8, column: 35, scope: !4)
// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "DoStuff", linkageName: "_CDoStuff.Main", scope: null, file: !3, line: 12, type: !5, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !12)
// CHECK:STDOUT: !12 = !{!13}
// CHECK:STDOUT: !13 = !DILocalVariable(arg: 1, scope: !11, type: !7)
// CHECK:STDOUT: !14 = !DILocation(line: 13, column: 10, scope: !11)
// CHECK:STDOUT: !15 = !DILocation(line: 13, column: 3, scope: !11)
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