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carbon-lang/toolchain/check/testdata/function/declaration/no_prelude/fail_redecl.carbon
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Richard Smith c6d35e1c4a Rename template constant -> concrete constant. (#4939) 
This implements a direction decided in a
[recent
discussion](https://docs.google.com/document/d/1Iut5f2TQBrtBNIduF4vJYOKfw7MbS8xH_J01_Q4e6Rk/edit?resourcekey=0-mc_vh5UzrzXfU4kO-3tOjA&tab=t.0#heading=h.mas1g68xx9ct)
to switch away from "template constant" when naming a constant that
doesn't depend on any generic parameters, because that creates confusion
with template-dependent constant values that depend on a template
parameter.
2025-02-12 21:24:51 +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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/function/declaration/no_prelude/fail_redecl.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/declaration/no_prelude/fail_redecl.carbon
fn A();
// CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration of `fn A` is redundant [RedeclRedundant]
// CHECK:STDERR: fn A();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared here [RedeclPrevDecl]
// CHECK:STDERR: fn A();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
fn A();
fn B(x: ());
// CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration of `fn B` is redundant [RedeclRedundant]
// CHECK:STDERR: fn B(x: ());
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared here [RedeclPrevDecl]
// CHECK:STDERR: fn B(x: ());
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR:
fn B(x: ());
fn C();
// CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration differs because of parameter count of 1 [RedeclParamCountDiffers]
// CHECK:STDERR: fn C(x: ());
// CHECK:STDERR: ^~~~~~~~~~~~
// CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared with parameter count of 0 [RedeclParamCountPrevious]
// CHECK:STDERR: fn C();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
fn C(x: ());
fn D() {}
// CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration of `fn D` is redundant [RedeclRedundant]
// CHECK:STDERR: fn D();
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared here [RedeclPrevDecl]
// CHECK:STDERR: fn D() {}
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR:
fn D();
fn E() {}
// CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redefinition of `fn E` [RedeclRedef]
// CHECK:STDERR: fn E() {}
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously defined here [RedeclPrevDef]
// CHECK:STDERR: fn E() {}
// CHECK:STDERR: ^~~~~~~~
// CHECK:STDERR:
fn E() {}
// CHECK:STDOUT: --- fail_redecl.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %A.type: type = fn_type @A [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %A: %A.type = struct_value () [concrete]
// CHECK:STDOUT: %B.type: type = fn_type @B [concrete]
// CHECK:STDOUT: %B: %B.type = struct_value () [concrete]
// CHECK:STDOUT: %C.type: type = fn_type @C [concrete]
// CHECK:STDOUT: %C: %C.type = struct_value () [concrete]
// CHECK:STDOUT: %.type.b6a92a.1: type = fn_type @.1 [concrete]
// CHECK:STDOUT: %.d852be.1: %.type.b6a92a.1 = struct_value () [concrete]
// CHECK:STDOUT: %D.type: type = fn_type @D [concrete]
// CHECK:STDOUT: %D: %D.type = struct_value () [concrete]
// CHECK:STDOUT: %E.type: type = fn_type @E [concrete]
// CHECK:STDOUT: %E: %E.type = struct_value () [concrete]
// CHECK:STDOUT: %.type.b6a92a.2: type = fn_type @.2 [concrete]
// CHECK:STDOUT: %.d852be.2: %.type.b6a92a.2 = struct_value () [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .A = %A.decl.loc11
// CHECK:STDOUT: .B = %B.decl.loc21
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .D = %D.decl.loc41
// CHECK:STDOUT: .E = %E.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %A.decl.loc11: %A.type = fn_decl @A [concrete = constants.%A] {} {}
// CHECK:STDOUT: %A.decl.loc19: %A.type = fn_decl @A [concrete = constants.%A] {} {}
// CHECK:STDOUT: %B.decl.loc21: %B.type = fn_decl @B [concrete = constants.%B] {
// CHECK:STDOUT: %x.patt: %empty_tuple.type = binding_pattern x
// CHECK:STDOUT: %x.param_patt: %empty_tuple.type = value_param_pattern %x.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %x.param.loc21: %empty_tuple.type = value_param runtime_param0
// CHECK:STDOUT: %.loc21_10.1: type = splice_block %.loc21_10.3 [concrete = constants.%empty_tuple.type] {
// CHECK:STDOUT: %.loc21_10.2: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc21_10.3: type = converted %.loc21_10.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.loc21: %empty_tuple.type = bind_name x, %x.param.loc21
// CHECK:STDOUT: }
// CHECK:STDOUT: %B.decl.loc29: %B.type = fn_decl @B [concrete = constants.%B] {
// CHECK:STDOUT: %x.patt: %empty_tuple.type = binding_pattern x
// CHECK:STDOUT: %x.param_patt: %empty_tuple.type = value_param_pattern %x.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %x.param.loc29: %empty_tuple.type = value_param runtime_param0
// CHECK:STDOUT: %.loc29_10.1: type = splice_block %.loc29_10.3 [concrete = constants.%empty_tuple.type] {
// CHECK:STDOUT: %.loc29_10.2: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc29_10.3: type = converted %.loc29_10.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x.loc29: %empty_tuple.type = bind_name x, %x.param.loc29
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: %C.type = fn_decl @C [concrete = constants.%C] {} {}
// CHECK:STDOUT: %.decl.loc39: %.type.b6a92a.1 = fn_decl @.1 [concrete = constants.%.d852be.1] {
// CHECK:STDOUT: %x.patt: %empty_tuple.type = binding_pattern x
// CHECK:STDOUT: %x.param_patt: %empty_tuple.type = value_param_pattern %x.patt, runtime_param0
// CHECK:STDOUT: } {
// CHECK:STDOUT: %x.param: %empty_tuple.type = value_param runtime_param0
// CHECK:STDOUT: %.loc39_10.1: type = splice_block %.loc39_10.3 [concrete = constants.%empty_tuple.type] {
// CHECK:STDOUT: %.loc39_10.2: %empty_tuple.type = tuple_literal ()
// CHECK:STDOUT: %.loc39_10.3: type = converted %.loc39_10.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %x: %empty_tuple.type = bind_name x, %x.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %D.decl.loc41: %D.type = fn_decl @D [concrete = constants.%D] {} {}
// CHECK:STDOUT: %D.decl.loc49: %D.type = fn_decl @D [concrete = constants.%D] {} {}
// CHECK:STDOUT: %E.decl: %E.type = fn_decl @E [concrete = constants.%E] {} {}
// CHECK:STDOUT: %.decl.loc59: %.type.b6a92a.2 = fn_decl @.2 [concrete = constants.%.d852be.2] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @A();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @B(%x.param_patt: %empty_tuple.type);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @C();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @.1(%x.param_patt: %empty_tuple.type);
// CHECK:STDOUT:
// CHECK:STDOUT: fn @D() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @E() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @.2() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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