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carbon-lang/toolchain/check/testdata/interface/generic_import.carbon
T
Richard Smith f9ab963bd6 Add a type_literal instruction to represent syntactic type literals. (#6781) 
This allows us to capture the location at which a type literal was used,
even in the cases where we don't otherwise need to create a new
instruction to represent the type such as for `char` or `str`.

The logic used to build the underlying type is now marked as desugaring.
For cases such as `iN`, this causes the call to `Core.Int` to no longer
be added as a dedicated IR instruction, and instead its constant value
is used directly as the value of the `type_literal`. This results in
this being on balance a reduction in the size of the IR.

This also fixes a crash in C++ interop when using a `char` literal as a
template argument. The crash was caused by the template argument not
having an associated location when mapping to a C++ location. See
changes to check/testdata/interop/cpp/template/type_param.carbon for an
example that used to crash before this change.

Update alias handling to allow an alias to point at any type literal,
reinstating support for aliases for type literals such as `bool` and
`i32` that had previously worked but stopped working when we
transitioned those types to being defined in the prelude. See changes to
toolchain/check/testdata/alias/builtins.carbon.

All the test changes other than the two mentioned above are mechanical
autoupdate changes switching to the new instruction.
2026-02-26 20:10:50 +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/none.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interface/generic_import.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/generic_import.carbon
// --- a.carbon
library "[[@TEST_NAME]]";
interface AddWith(T:! type) {
fn F();
}
// --- b.carbon
library "[[@TEST_NAME]]";
import library "a";
class C {}
impl C as AddWith(C) {
fn F() {}
}
// CHECK:STDOUT: --- a.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self: %type = symbolic_binding .Self [symbolic_self]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %pattern_type: type = pattern_type type [concrete]
// CHECK:STDOUT: %AddWith.type.d53: type = generic_interface_type @AddWith [concrete]
// CHECK:STDOUT: %AddWith.generic: %AddWith.type.d53 = struct_value () [concrete]
// CHECK:STDOUT: %AddWith.type.265: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
// CHECK:STDOUT: %Self: %AddWith.type.265 = symbolic_binding Self, 1 [symbolic]
// CHECK:STDOUT: %AddWith.WithSelf.F.type: type = fn_type @AddWith.WithSelf.F, @AddWith(%T, %Self) [symbolic]
// CHECK:STDOUT: %AddWith.WithSelf.F: %AddWith.WithSelf.F.type = struct_value () [symbolic]
// CHECK:STDOUT: %AddWith.assoc_type: type = assoc_entity_type @AddWith, @AddWith(%T) [symbolic]
// CHECK:STDOUT: %assoc0: %AddWith.assoc_type = assoc_entity element0, @AddWith.%AddWith.WithSelf.F.decl [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .AddWith = %AddWith.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %AddWith.decl: %AddWith.type.d53 = interface_decl @AddWith [concrete = constants.%AddWith.generic] {
// CHECK:STDOUT: %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc4_23.1: type = splice_block %.loc4_23.2 [concrete = type] {
// CHECK:STDOUT: %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %.loc4_23.2: type = type_literal type [concrete = type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc4_19.2: type = symbolic_binding T, 0 [symbolic = %T.loc4_19.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @AddWith(%T.loc4_19.2: type) {
// CHECK:STDOUT: %T.loc4_19.1: type = symbolic_binding T, 0 [symbolic = %T.loc4_19.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %AddWith.type.loc4: type = facet_type <@AddWith, @AddWith(%T.loc4_19.1)> [symbolic = %AddWith.type.loc4 (constants.%AddWith.type.265)]
// CHECK:STDOUT: %Self.loc4_29.2: @AddWith.%AddWith.type.loc4 (%AddWith.type.265) = symbolic_binding Self, 1 [symbolic = %Self.loc4_29.2 (constants.%Self)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.loc4_29.1: @AddWith.%AddWith.type.loc4 (%AddWith.type.265) = symbolic_binding Self, 1 [symbolic = %Self.loc4_29.2 (constants.%Self)]
// CHECK:STDOUT: interface_with_self_decl @AddWith [concrete]
// CHECK:STDOUT:
// CHECK:STDOUT: !with Self:
// CHECK:STDOUT: %AddWith.WithSelf.F.decl: @AddWith.%AddWith.WithSelf.F.type (%AddWith.WithSelf.F.type) = fn_decl @AddWith.WithSelf.F [symbolic = @AddWith.%AddWith.WithSelf.F (constants.%AddWith.WithSelf.F)] {} {}
// CHECK:STDOUT: %assoc0.loc5_9.1: @AddWith.%AddWith.assoc_type (%AddWith.assoc_type) = assoc_entity element0, %AddWith.WithSelf.F.decl [symbolic = %assoc0.loc5_9.2 (constants.%assoc0)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.loc4_29.1
// CHECK:STDOUT: .F = %assoc0.loc5_9.1
// CHECK:STDOUT: witness = (%AddWith.WithSelf.F.decl)
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @AddWith.WithSelf.F(@AddWith.%T.loc4_19.2: type, @AddWith.%Self.loc4_29.1: @AddWith.%AddWith.type.loc4 (%AddWith.type.265)) {
// CHECK:STDOUT: fn();
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%T) {
// CHECK:STDOUT: %T.loc4_19.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%T, constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith.WithSelf.F(constants.%T, constants.%Self) {}
// CHECK:STDOUT:
// CHECK:STDOUT: --- b.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %C: type = class_type @C [concrete]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %AddWith.type.d53: type = generic_interface_type @AddWith [concrete]
// CHECK:STDOUT: %AddWith.generic: %AddWith.type.d53 = struct_value () [concrete]
// CHECK:STDOUT: %T: type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %AddWith.type.265: type = facet_type <@AddWith, @AddWith(%T)> [symbolic]
// CHECK:STDOUT: %Self.db2: %AddWith.type.265 = symbolic_binding Self, 1 [symbolic]
// CHECK:STDOUT: %AddWith.WithSelf.F.type.653: type = fn_type @AddWith.WithSelf.F, @AddWith(%T, %Self.db2) [symbolic]
// CHECK:STDOUT: %AddWith.WithSelf.F.d70: %AddWith.WithSelf.F.type.653 = struct_value () [symbolic]
// CHECK:STDOUT: %AddWith.type.47a: type = facet_type <@AddWith, @AddWith(%C)> [concrete]
// CHECK:STDOUT: %AddWith.impl_witness: <witness> = impl_witness @C.as.AddWith.impl.%AddWith.impl_witness_table [concrete]
// CHECK:STDOUT: %Self.58e: %AddWith.type.47a = symbolic_binding Self, 1 [symbolic]
// CHECK:STDOUT: %AddWith.WithSelf.F.type.ad2: type = fn_type @AddWith.WithSelf.F, @AddWith(%C, %Self.db2) [symbolic]
// CHECK:STDOUT: %AddWith.WithSelf.F.260: %AddWith.WithSelf.F.type.ad2 = struct_value () [symbolic]
// CHECK:STDOUT: %AddWith.assoc_type.217: type = assoc_entity_type @AddWith, @AddWith(%C) [concrete]
// CHECK:STDOUT: %assoc0.921: %AddWith.assoc_type.217 = assoc_entity element0, imports.%Main.import_ref.663 [concrete]
// CHECK:STDOUT: %C.as.AddWith.impl.F.type: type = fn_type @C.as.AddWith.impl.F [concrete]
// CHECK:STDOUT: %C.as.AddWith.impl.F: %C.as.AddWith.impl.F.type = struct_value () [concrete]
// CHECK:STDOUT: %AddWith.facet: %AddWith.type.47a = facet_value %C, (%AddWith.impl_witness) [concrete]
// CHECK:STDOUT: %AddWith.WithSelf.F.type.858: type = fn_type @AddWith.WithSelf.F, @AddWith(%C, %AddWith.facet) [concrete]
// CHECK:STDOUT: %AddWith.WithSelf.F.e0b: %AddWith.WithSelf.F.type.858 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Main.AddWith: %AddWith.type.d53 = import_ref Main//a, AddWith, loaded [concrete = constants.%AddWith.generic]
// CHECK:STDOUT: %Main.import_ref.1c3 = import_ref Main//a, loc5_9, unloaded
// CHECK:STDOUT: %Main.F: @AddWith.%AddWith.WithSelf.F.type (%AddWith.WithSelf.F.type.653) = import_ref Main//a, F, loaded [symbolic = @AddWith.%AddWith.WithSelf.F (constants.%AddWith.WithSelf.F.d70)]
// CHECK:STDOUT: %Main.import_ref.663 = import_ref Main//a, loc5_9, unloaded
// CHECK:STDOUT: %Main.import_ref.b3bc94.2: type = import_ref Main//a, loc4_19, loaded [symbolic = @AddWith.%T.1 (constants.%T)]
// CHECK:STDOUT: %Main.import_ref.cb13aa.2: @AddWith.%AddWith.type.1 (%AddWith.type.265) = import_ref Main//a, loc4_29, loaded [symbolic = @AddWith.%Self.1 (constants.%Self.db2)]
// CHECK:STDOUT: %Main.import_ref.367 = import_ref Main//a, loc4_29, unloaded
// CHECK:STDOUT: %Main.import_ref.b3bc94.3: type = import_ref Main//a, loc4_19, loaded [symbolic = @AddWith.%T.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .AddWith = imports.%Main.AddWith
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %default.import = import <none>
// CHECK:STDOUT: %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: impl_decl @C.as.AddWith.impl [concrete] {} {
// CHECK:STDOUT: %C.ref.loc7_6: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %AddWith.ref: %AddWith.type.d53 = name_ref AddWith, imports.%Main.AddWith [concrete = constants.%AddWith.generic]
// CHECK:STDOUT: %C.ref.loc7_19: type = name_ref C, file.%C.decl [concrete = constants.%C]
// CHECK:STDOUT: %AddWith.type: type = facet_type <@AddWith, @AddWith(constants.%C)> [concrete = constants.%AddWith.type.47a]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @AddWith(imports.%Main.import_ref.b3bc94.3: type) [from "a.carbon"] {
// CHECK:STDOUT: %T.1: type = symbolic_binding T, 0 [symbolic = %T.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %AddWith.type.1: type = facet_type <@AddWith, @AddWith(%T.1)> [symbolic = %AddWith.type.1 (constants.%AddWith.type.265)]
// CHECK:STDOUT: %Self.1: @AddWith.%AddWith.type.1 (%AddWith.type.265) = symbolic_binding Self, 1 [symbolic = %Self.1 (constants.%Self.db2)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = imports.%Main.import_ref.367
// CHECK:STDOUT: .F = imports.%Main.import_ref.1c3
// CHECK:STDOUT: witness = (imports.%Main.F)
// CHECK:STDOUT:
// CHECK:STDOUT: !requires:
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @C.as.AddWith.impl: %C.ref.loc7_6 as %AddWith.type {
// CHECK:STDOUT: %C.as.AddWith.impl.F.decl: %C.as.AddWith.impl.F.type = fn_decl @C.as.AddWith.impl.F [concrete = constants.%C.as.AddWith.impl.F] {} {}
// CHECK:STDOUT: %AddWith.impl_witness_table = impl_witness_table (%C.as.AddWith.impl.F.decl), @C.as.AddWith.impl [concrete]
// CHECK:STDOUT: %AddWith.impl_witness: <witness> = impl_witness %AddWith.impl_witness_table [concrete = constants.%AddWith.impl_witness]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .F = %C.as.AddWith.impl.F.decl
// CHECK:STDOUT: witness = %AddWith.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @C {
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic fn @AddWith.WithSelf.F(imports.%Main.import_ref.b3bc94.2: type, imports.%Main.import_ref.cb13aa.2: @AddWith.%AddWith.type.1 (%AddWith.type.265)) [from "a.carbon"] {
// CHECK:STDOUT: fn;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C.as.AddWith.impl.F() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%T) {
// CHECK:STDOUT: %T.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%T, constants.%Self.db2) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith.WithSelf.F(constants.%T, constants.%Self.db2) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%C) {
// CHECK:STDOUT: %T.1 => constants.%C
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %AddWith.type.1 => constants.%AddWith.type.47a
// CHECK:STDOUT: %Self.1 => constants.%Self.58e
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%C, constants.%Self.db2) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T.2 => constants.%C
// CHECK:STDOUT: %AddWith.type.2 => constants.%AddWith.type.47a
// CHECK:STDOUT: %Self.2 => constants.%Self.db2
// CHECK:STDOUT: %AddWith.WithSelf.F.type => constants.%AddWith.WithSelf.F.type.ad2
// CHECK:STDOUT: %AddWith.WithSelf.F => constants.%AddWith.WithSelf.F.260
// CHECK:STDOUT: %AddWith.assoc_type => constants.%AddWith.assoc_type.217
// CHECK:STDOUT: %assoc0 => constants.%assoc0.921
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith(constants.%C, constants.%AddWith.facet) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T.2 => constants.%C
// CHECK:STDOUT: %AddWith.type.2 => constants.%AddWith.type.47a
// CHECK:STDOUT: %Self.2 => constants.%AddWith.facet
// CHECK:STDOUT: %AddWith.WithSelf.F.type => constants.%AddWith.WithSelf.F.type.858
// CHECK:STDOUT: %AddWith.WithSelf.F => constants.%AddWith.WithSelf.F.e0b
// CHECK:STDOUT: %AddWith.assoc_type => constants.%AddWith.assoc_type.217
// CHECK:STDOUT: %assoc0 => constants.%assoc0.921
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @AddWith.WithSelf.F(constants.%C, constants.%AddWith.facet) {}
// CHECK:STDOUT:
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