carbon-lang/toolchain/check/testdata/function/declaration/fail_param_redecl.carbon

// 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
// 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/function/declaration/fail_param_redecl.carbon
// TIP: To dump output, run:
// TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/declaration/fail_param_redecl.carbon

// CHECK:STDERR: fail_param_redecl.carbon:[[@LINE+7]]:14: error: duplicate name `n` being declared in the same scope [NameDeclDuplicate]
// CHECK:STDERR: fn F(n: i32, n: i32);
// CHECK:STDERR:              ^
// CHECK:STDERR: fail_param_redecl.carbon:[[@LINE+4]]:6: note: name is previously declared here [NameDeclPrevious]
// CHECK:STDERR: fn F(n: i32, n: i32);
// CHECK:STDERR:      ^~~~~~
// CHECK:STDERR:
fn F(n: i32, n: i32);

// CHECK:STDOUT: --- fail_param_redecl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
// CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
// CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
// CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
// CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT:     .Int = %Core.Int
// CHECK:STDOUT:     import Core//prelude
// CHECK:STDOUT:     import Core//prelude/...
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
// CHECK:STDOUT:     .Core = imports.%Core
// CHECK:STDOUT:     .F = %F.decl
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %Core.import = import Core
// CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
// CHECK:STDOUT:     %n.param_patt.loc22_7: %pattern_type.7ce = value_param_pattern [concrete]
// CHECK:STDOUT:     %n.patt.loc22_7: %pattern_type.7ce = at_binding_pattern n, %n.param_patt.loc22_7 [concrete]
// CHECK:STDOUT:     %n.param_patt.loc22_15: %pattern_type.7ce = value_param_pattern [concrete]
// CHECK:STDOUT:     %n.patt.loc22_15: %pattern_type.7ce = at_binding_pattern n, %n.param_patt.loc22_15 [concrete]
// CHECK:STDOUT:   } {
// CHECK:STDOUT:     %n.param.loc22_7: %i32 = value_param call_param0
// CHECK:STDOUT:     %i32.loc22_9: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT:     %n.loc22_7: %i32 = value_binding n, %n.param.loc22_7
// CHECK:STDOUT:     %n.param.loc22_15: %i32 = value_param call_param1
// CHECK:STDOUT:     %i32.loc22_17: type = type_literal constants.%i32 [concrete = constants.%i32]
// CHECK:STDOUT:     %n.loc22_15: %i32 = value_binding n, %n.param.loc22_15
// CHECK:STDOUT:   }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F(%n.param.loc22_7: %i32, %n.param.loc22_15: %i32);
// CHECK:STDOUT: