Files
carbon-lang/toolchain/check/testdata/array/fail_incomplete_element.carbon
T
Richard SmithandDana Jansens bba32900c3 Preserve type sugar in ArrayType, ConstType, and PointerType. (#5235)
Each of these types takes another type as an operand. Instead of storing
that other type as a `TypeId`, store it as an `InstId` so that we can
track how it was written, not only its canonical form.

The canonical constant values of these types continue to store the
canonical constant values of their operands, as normal.

---------

Co-authored-by: Dana Jansens <danakj@orodu.net>
2025-04-03 21:14:03 +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
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/array/fail_incomplete_element.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/fail_incomplete_element.carbon
class Incomplete;
// CHECK:STDERR: fail_incomplete_element.carbon:[[@LINE+7]]:8: error: binding pattern has incomplete type `array(Incomplete, 1)` in name binding declaration [IncompleteTypeInBindingDecl]
// CHECK:STDERR: var a: array(Incomplete, 1);
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~
// CHECK:STDERR: fail_incomplete_element.carbon:[[@LINE-5]]:1: note: class was forward declared here [ClassForwardDeclaredHere]
// CHECK:STDERR: class Incomplete;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
// CHECK:STDERR:
var a: array(Incomplete, 1);
var p: Incomplete* = &a[0];
// CHECK:STDOUT: --- fail_incomplete_element.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Incomplete: type = class_type @Incomplete [concrete]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %array_type: type = array_type %int_1, %Incomplete [concrete]
// CHECK:STDOUT: %ptr: type = ptr_type %Incomplete [concrete]
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Incomplete = %Incomplete.decl
// CHECK:STDOUT: .a = %a
// CHECK:STDOUT: .p = %p
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Incomplete.decl: type = class_decl @Incomplete [concrete = constants.%Incomplete] {} {}
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %a.patt: <error> = binding_pattern a
// CHECK:STDOUT: %.loc20_1: <error> = var_pattern %a.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %a.var: ref <error> = var a
// CHECK:STDOUT: %.loc20_27: type = splice_block %array_type [concrete = constants.%array_type] {
// CHECK:STDOUT: %Incomplete.ref.loc20: type = name_ref Incomplete, %Incomplete.decl [concrete = constants.%Incomplete]
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1]
// CHECK:STDOUT: %array_type: type = array_type %int_1, %Incomplete.ref.loc20 [concrete = constants.%array_type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %a: <error> = bind_name a, <error>
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %p.patt: %ptr = binding_pattern p
// CHECK:STDOUT: %.loc22_1: %ptr = var_pattern %p.patt
// CHECK:STDOUT: }
// CHECK:STDOUT: %p.var: ref %ptr = var p
// CHECK:STDOUT: %.loc22_18: type = splice_block %ptr [concrete = constants.%ptr] {
// CHECK:STDOUT: %Incomplete.ref.loc22: type = name_ref Incomplete, %Incomplete.decl [concrete = constants.%Incomplete]
// CHECK:STDOUT: %ptr: type = ptr_type %Incomplete.ref.loc22 [concrete = constants.%ptr]
// CHECK:STDOUT: }
// CHECK:STDOUT: %p: ref %ptr = bind_name p, %p.var
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Incomplete;
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %a.ref: <error> = name_ref a, file.%a [concrete = <error>]
// CHECK:STDOUT: %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
// CHECK:STDOUT: %addr: <error> = addr_of <error> [concrete = <error>]
// CHECK:STDOUT: assign file.%p.var, <error>
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: