Files
carbon-lang/toolchain/check/testdata/pointer/fail_deref_error.carbon
T
Richard Smith 797b14eb8e Import ImplWitnessTable into the imports block instead of the constants block. (#5374)
Don't import `ImplWitnessTable` into the `constants` block, because we
generally don't put `Unique` constants there. This matches the handling
of the other kinds of `Unique` constants. In order to keep the
instruction visible in formatted SemIR, add it to the `imports` block
instead.

Also fix a bug in the instruction formatter that resulted in
instructions in the `imports` block being omitted from the output if
they were only referenced by earlier instructions in the `imports` block
and by instructions in the `constants` block. This was already resulting
in some referenced instructions being omitted from the output, but also
occurred frequently for `impl_witness_table` instructions after this
change because it is common for the only reference to those instructions
to be from `impl_witness` instructions in the `constants` block.
2025-05-01 00:08:43 +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/pointer/fail_deref_error.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/pointer/fail_deref_error.carbon
// CHECK:STDERR: fail_deref_error.carbon:[[@LINE+4]]:15: error: name `undeclared` not found [NameNotFound]
// CHECK:STDERR: let n: i32 = *undeclared;
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
let n: i32 = *undeclared;
// CHECK:STDERR: fail_deref_error.carbon:[[@LINE+4]]:15: error: name `undeclared` not found [NameNotFound]
// CHECK:STDERR: let n2: i32 = undeclared->foo;
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
let n2: i32 = undeclared->foo;
// CHECK:STDOUT: --- fail_deref_error.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: }
// 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/types/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: .n = %n
// CHECK:STDOUT: .undeclared = <poisoned>
// CHECK:STDOUT: .n2 = %n2
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %n.patt: %pattern_type.7ce = binding_pattern n [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc15: type = splice_block %i32.loc15 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc15: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc15: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %n: %i32 = bind_name n, <error>
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %n2.patt: %pattern_type.7ce = binding_pattern n2 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT: %.loc20: type = splice_block %i32.loc20 [concrete = constants.%i32] {
// CHECK:STDOUT: %int_32.loc20: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
// CHECK:STDOUT: %i32.loc20: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %n2: %i32 = bind_name n2, <error>
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @__global_init() {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %undeclared.ref.loc15: <error> = name_ref undeclared, <error> [concrete = <error>]
// CHECK:STDOUT: %.loc15: ref <error> = deref <error> [concrete = <error>]
// CHECK:STDOUT: %undeclared.ref.loc20: <error> = name_ref undeclared, <error> [concrete = <error>]
// CHECK:STDOUT: %.loc20: ref <error> = deref <error> [concrete = <error>]
// CHECK:STDOUT: %foo.ref: <error> = name_ref foo, <error> [concrete = <error>]
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT: