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carbon-lang/toolchain/check/testdata/interface/fail_generic_redeclaration.carbon
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Jon Ross-Perkins 04d534abee Remove the no_prelude directory, using --no-prelude-import directly (#5607) 
People seemed receptive [on
#toolchain](https://discord.com/channels/655572317891461132/655578254970716160/1379196447827689553),
so proceeding.

For the two name conflicts, I've set it up so that there's a
"foo.carbon" and "foo_with_prelude.carbon", to indicate that the
no-prelude approach is preferred (with a shorter name).

Note min_prelude will require a little more work/thought, I want to
avoid adding `--custom-core` etc.
2025-06-04 16:56:03 +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
//
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --no-prelude-import --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/fail_generic_redeclaration.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/fail_generic_redeclaration.carbon
interface NotGeneric;
// CHECK:STDERR: fail_generic_redeclaration.carbon:[[@LINE+7]]:1: error: redeclaration differs because of parameter list [RedeclParamListDiffers]
// CHECK:STDERR: interface NotGeneric(T:! type) {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_generic_redeclaration.carbon:[[@LINE-4]]:1: note: previously declared without parameter list [RedeclParamListPrevious]
// CHECK:STDERR: interface NotGeneric;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
interface NotGeneric(T:! type) {}
interface Generic(T:! type);
// CHECK:STDERR: fail_generic_redeclaration.carbon:[[@LINE+7]]:1: error: redeclaration differs because of missing parameter list [RedeclParamListDiffers]
// CHECK:STDERR: interface Generic {}
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_generic_redeclaration.carbon:[[@LINE-4]]:1: note: previously declared with parameter list [RedeclParamListPrevious]
// CHECK:STDERR: interface Generic(T:! type);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
interface Generic {}
interface DifferentParams(T:! type);
// CHECK:STDERR: fail_generic_redeclaration.carbon:[[@LINE+7]]:27: error: type `<pattern for ()>` of parameter 1 in redeclaration differs from previous parameter type `<pattern for type>` [RedeclParamDiffersType]
// CHECK:STDERR: interface DifferentParams(T:! ()) {}
// CHECK:STDERR: ^
// CHECK:STDERR: fail_generic_redeclaration.carbon:[[@LINE-4]]:27: note: previous declaration's corresponding parameter here [RedeclParamPrevious]
// CHECK:STDERR: interface DifferentParams(T:! type);
// CHECK:STDERR: ^
// CHECK:STDERR:
interface DifferentParams(T:! ()) {}
// CHECK:STDOUT: --- fail_generic_redeclaration.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %NotGeneric.type.10e: type = facet_type <@NotGeneric.1> [concrete]
// CHECK:STDOUT: %T.8b3: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.98f: type = pattern_type type [concrete]
// CHECK:STDOUT: %NotGeneric.type.93b: type = generic_interface_type @NotGeneric.2 [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %NotGeneric.generic: %NotGeneric.type.93b = struct_value () [concrete]
// CHECK:STDOUT: %NotGeneric.type.8cb: type = facet_type <@NotGeneric.2, @NotGeneric.2(%T.8b3)> [symbolic]
// CHECK:STDOUT: %Self.c08: %NotGeneric.type.8cb = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: %Generic.type.c21: type = generic_interface_type @Generic.1 [concrete]
// CHECK:STDOUT: %Generic.generic: %Generic.type.c21 = struct_value () [concrete]
// CHECK:STDOUT: %Generic.type.c99: type = facet_type <@Generic.2> [concrete]
// CHECK:STDOUT: %Self.5ae: %Generic.type.c99 = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %DifferentParams.type.d40e5c.1: type = generic_interface_type @DifferentParams.1 [concrete]
// CHECK:STDOUT: %DifferentParams.generic.d33670.1: %DifferentParams.type.d40e5c.1 = struct_value () [concrete]
// CHECK:STDOUT: %T.7a6: %empty_tuple.type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %pattern_type.cb1: type = pattern_type %empty_tuple.type [concrete]
// CHECK:STDOUT: %DifferentParams.type.d40e5c.2: type = generic_interface_type @DifferentParams.2 [concrete]
// CHECK:STDOUT: %DifferentParams.generic.d33670.2: %DifferentParams.type.d40e5c.2 = struct_value () [concrete]
// CHECK:STDOUT: %DifferentParams.type.12c: type = facet_type <@DifferentParams.2, @DifferentParams.2(%T.7a6)> [symbolic]
// CHECK:STDOUT: %Self.8d7: %DifferentParams.type.12c = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .NotGeneric = %NotGeneric.decl.loc14
// CHECK:STDOUT: .Generic = %Generic.decl.loc24
// CHECK:STDOUT: .DifferentParams = %DifferentParams.decl.loc34
// CHECK:STDOUT: }
// CHECK:STDOUT: %NotGeneric.decl.loc14: type = interface_decl @NotGeneric.1 [concrete = constants.%NotGeneric.type.10e] {} {}
// CHECK:STDOUT: %NotGeneric.decl.loc22: %NotGeneric.type.93b = interface_decl @NotGeneric.2 [concrete = constants.%NotGeneric.generic] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %T.loc22_22.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc22_22.2 (constants.%T.8b3)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Generic.decl.loc24: %Generic.type.c21 = interface_decl @Generic.1 [concrete = constants.%Generic.generic] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %T.loc24_19.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc24_19.2 (constants.%T.8b3)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %Generic.decl.loc32: type = interface_decl @Generic.2 [concrete = constants.%Generic.type.c99] {} {}
// CHECK:STDOUT: %DifferentParams.decl.loc34: %DifferentParams.type.d40e5c.1 = interface_decl @DifferentParams.1 [concrete = constants.%DifferentParams.generic.d33670.1] {
// CHECK:STDOUT: %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %T.loc34_27.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc34_27.2 (constants.%T.8b3)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %DifferentParams.decl.loc42: %DifferentParams.type.d40e5c.2 = interface_decl @DifferentParams.2 [concrete = constants.%DifferentParams.generic.d33670.2] {
// CHECK:STDOUT: %T.patt: %pattern_type.cb1 = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.loc42_32.1: type = splice_block %.loc42_32.3 [concrete = constants.%empty_tuple.type] {
// CHECK:STDOUT: %.loc42_32.2: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc42_32.3: type = converted %.loc42_32.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %T.loc42_27.1: %empty_tuple.type = bind_symbolic_name T, 0 [symbolic = %T.loc42_27.2 (constants.%T.7a6)]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @NotGeneric.1;
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @NotGeneric.2(%T.loc22_22.1: type) {
// CHECK:STDOUT: %T.loc22_22.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc22_22.2 (constants.%T.8b3)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %NotGeneric.type: type = facet_type <@NotGeneric.2, @NotGeneric.2(%T.loc22_22.2)> [symbolic = %NotGeneric.type (constants.%NotGeneric.type.8cb)]
// CHECK:STDOUT: %Self.2: @NotGeneric.2.%NotGeneric.type (%NotGeneric.type.8cb) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c08)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.1: @NotGeneric.2.%NotGeneric.type (%NotGeneric.type.8cb) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.c08)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.1
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @Generic.1(%T.loc24_19.1: type) {
// CHECK:STDOUT: %T.loc24_19.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc24_19.2 (constants.%T.8b3)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Generic.2 {
// CHECK:STDOUT: %Self: %Generic.type.c99 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.5ae]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @DifferentParams.1(%T.loc34_27.1: type) {
// CHECK:STDOUT: %T.loc34_27.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc34_27.2 (constants.%T.8b3)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface;
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @DifferentParams.2(%T.loc42_27.1: %empty_tuple.type) {
// CHECK:STDOUT: %T.loc42_27.2: %empty_tuple.type = bind_symbolic_name T, 0 [symbolic = %T.loc42_27.2 (constants.%T.7a6)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %DifferentParams.type: type = facet_type <@DifferentParams.2, @DifferentParams.2(%T.loc42_27.2)> [symbolic = %DifferentParams.type (constants.%DifferentParams.type.12c)]
// CHECK:STDOUT: %Self.2: @DifferentParams.2.%DifferentParams.type (%DifferentParams.type.12c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.8d7)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.1: @DifferentParams.2.%DifferentParams.type (%DifferentParams.type.12c) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.8d7)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.1
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @NotGeneric.2(constants.%T.8b3) {
// CHECK:STDOUT: %T.loc22_22.2 => constants.%T.8b3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Generic.1(constants.%T.8b3) {
// CHECK:STDOUT: %T.loc24_19.2 => constants.%T.8b3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @DifferentParams.1(constants.%T.8b3) {
// CHECK:STDOUT: %T.loc34_27.2 => constants.%T.8b3
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @DifferentParams.2(constants.%T.7a6) {
// CHECK:STDOUT: %T.loc42_27.2 => constants.%T.7a6
// CHECK:STDOUT: }
// CHECK:STDOUT:
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