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carbon-lang/toolchain/check/testdata/array/fail_incomplete_element.carbon
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Richard Smith 7553d864e1 Very basic support for constant evaluation of expressions. (#3581)
Form a side table with constant values for each instruction. Evaluation
is only supported for a few very simple kinds of instruction for now.
This is not observable outside of the SemIR output, because nothing
depends on expressions having a constant value phase yet.
2024-01-11 23:12:58 +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
class Incomplete;
// CHECK:STDERR: fail_incomplete_element.carbon:[[@LINE+6]]:8: ERROR: Variable has incomplete type `[Incomplete; 1]`.
// CHECK:STDERR: var a: [Incomplete; 1];
// CHECK:STDERR: ^~~~~~~~~~~~~~~
// CHECK:STDERR: fail_incomplete_element.carbon:[[@LINE-5]]:1: Class was forward declared here.
// CHECK:STDERR: class Incomplete;
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~
var a: [Incomplete; 1];
// CHECK:STDERR: fail_incomplete_element.carbon:[[@LINE+3]]:1: ERROR: Cannot implicitly convert from `<error>*` to `Incomplete*`.
// CHECK:STDERR: var p: Incomplete* = &a[0];
// CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~
var p: Incomplete* = &a[0];
// CHECK:STDOUT: --- fail_incomplete_element.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %.loc15_21: i32 = int_literal 1, const
// CHECK:STDOUT: %.loc15_22: type = array_type %.loc15_21, Incomplete, const
// CHECK:STDOUT: %.loc20_25: i32 = int_literal 0, const
// CHECK:STDOUT: %.loc20_22: type = ptr_type <error>, const
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace package, {.Incomplete = %Incomplete.decl, .a = %a, .p = %p}
// CHECK:STDOUT: %Incomplete.decl = class_decl @Incomplete, ()
// CHECK:STDOUT: %Incomplete: type = class_type @Incomplete, const
// CHECK:STDOUT: %Incomplete.ref.loc15: type = name_ref Incomplete, %Incomplete, const = %Incomplete
// CHECK:STDOUT: %.loc15_21: i32 = int_literal 1, const = constants.%.loc15_21
// CHECK:STDOUT: %.loc15_22: type = array_type %.loc15_21, Incomplete, const = constants.%.loc15_22
// CHECK:STDOUT: %a.var: ref <error> = var a
// CHECK:STDOUT: %a: ref <error> = bind_name a, %a.var
// CHECK:STDOUT: %Incomplete.ref.loc20: type = name_ref Incomplete, %Incomplete, const = %Incomplete
// CHECK:STDOUT: %.loc20_18: type = ptr_type Incomplete, const
// CHECK:STDOUT: %p.var: ref Incomplete* = var p
// CHECK:STDOUT: %p: ref Incomplete* = bind_name p, %p.var
// CHECK:STDOUT: %a.ref: ref <error> = name_ref a, %a
// CHECK:STDOUT: %.loc20_25: i32 = int_literal 0, const = constants.%.loc20_25
// CHECK:STDOUT: %.loc20_22: <error>* = addr_of <error>
// CHECK:STDOUT: assign %p.var, <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Incomplete;
// CHECK:STDOUT: