// 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

// TODO: The errors here are in bad locations. We should build a SemIR
// representation for a reference to a name so that we can track the location
// properly.

namespace N;
// CHECK:STDERR: fail_invalid_base.carbon:[[@LINE+4]]:14: ERROR: Expression cannot be used as a value.
// CHECK:STDERR: var a: i32 = N[0];
// CHECK:STDERR:              ^
// CHECK:STDERR:
var a: i32 = N[0];

fn F();
// CHECK:STDERR: fail_invalid_base.carbon:[[@LINE+4]]:14: ERROR: Expression cannot be used as a value.
// CHECK:STDERR: var b: i32 = F[1];
// CHECK:STDERR:              ^
// CHECK:STDERR:
var b: i32 = F[1];

// CHECK:STDERR: fail_invalid_base.carbon:[[@LINE+4]]:14: ERROR: Type `{.a: i32, .b: i32}` does not support indexing.
// CHECK:STDERR: var c: i32 = {.a = 1, .b = 2}[0];
// CHECK:STDERR:              ^~~~~~~~~~~~~~~~~~~
// CHECK:STDERR:
var c: i32 = {.a = 1, .b = 2}[0];

// CHECK:STDERR: fail_invalid_base.carbon:[[@LINE+3]]:14: ERROR: Type `type` does not support indexing.
// CHECK:STDERR: var d: i32 = {.a: i32, .b: i32}[0];
// CHECK:STDERR:              ^~~~~~~~~~~~~~~~~~~~~
var d: i32 = {.a: i32, .b: i32}[0];

// CHECK:STDOUT: --- fail_invalid_base.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT:   %.1: i32 = int_literal 0 [template]
// CHECK:STDOUT:   %.2: i32 = int_literal 1 [template]
// CHECK:STDOUT:   %.3: i32 = int_literal 2 [template]
// CHECK:STDOUT:   %.4: type = struct_type {.a: i32, .b: i32} [template]
// CHECK:STDOUT:   %.5: type = ptr_type {.a: i32, .b: i32} [template]
// CHECK:STDOUT:   %.6: {.a: i32, .b: i32} = struct_value (%.2, %.3) [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT:   package: <namespace> = namespace [template] {
// CHECK:STDOUT:     .N = %N
// CHECK:STDOUT:     .a = %a
// CHECK:STDOUT:     .F = %F
// CHECK:STDOUT:     .b = %b
// CHECK:STDOUT:     .c = %c
// CHECK:STDOUT:     .d = %d
// CHECK:STDOUT:   }
// CHECK:STDOUT:   %N: <namespace> = namespace [template] {}
// CHECK:STDOUT:   %a.var: ref i32 = var a
// CHECK:STDOUT:   %a: ref i32 = bind_name a, %a.var
// CHECK:STDOUT:   %F: <function> = fn_decl @F [template] {}
// CHECK:STDOUT:   %b.var: ref i32 = var b
// CHECK:STDOUT:   %b: ref i32 = bind_name b, %b.var
// CHECK:STDOUT:   %c.var: ref i32 = var c
// CHECK:STDOUT:   %c: ref i32 = bind_name c, %c.var
// CHECK:STDOUT:   %d.var: ref i32 = var d
// CHECK:STDOUT:   %d: ref i32 = bind_name d, %d.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F();
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT:   %N.ref: <namespace> = name_ref N, file.%N [template = file.%N]
// CHECK:STDOUT:   %.loc16: i32 = int_literal 0 [template = constants.%.1]
// CHECK:STDOUT:   assign file.%a.var, <error>
// CHECK:STDOUT:   %F.ref: <function> = name_ref F, file.%F [template = file.%F]
// CHECK:STDOUT:   %.loc23: i32 = int_literal 1 [template = constants.%.2]
// CHECK:STDOUT:   assign file.%b.var, <error>
// CHECK:STDOUT:   %.loc29_20: i32 = int_literal 1 [template = constants.%.2]
// CHECK:STDOUT:   %.loc29_28: i32 = int_literal 2 [template = constants.%.3]
// CHECK:STDOUT:   %.loc29_29.1: {.a: i32, .b: i32} = struct_literal (%.loc29_20, %.loc29_28)
// CHECK:STDOUT:   %.loc29_31: i32 = int_literal 0 [template = constants.%.1]
// CHECK:STDOUT:   %.loc29_29.2: {.a: i32, .b: i32} = struct_value (%.loc29_20, %.loc29_28) [template = constants.%.6]
// CHECK:STDOUT:   %.loc29_29.3: {.a: i32, .b: i32} = converted %.loc29_29.1, %.loc29_29.2 [template = constants.%.6]
// CHECK:STDOUT:   assign file.%c.var, <error>
// CHECK:STDOUT:   %.loc34_31: type = struct_type {.a: i32, .b: i32} [template = constants.%.4]
// CHECK:STDOUT:   %.loc34_33: i32 = int_literal 0 [template = constants.%.1]
// CHECK:STDOUT:   assign file.%d.var, <error>
// CHECK:STDOUT:   return
// CHECK:STDOUT: }
// CHECK:STDOUT: