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carbon-lang/toolchain/check/testdata/class/init.carbon
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Jon Ross-Perkins 6b5eb1a101 Id::Invalid -> Id::None (#4834) 
High level, replacing `Id::Invalid` with `Id::None` and `Id::is_valid`
with `Id::has_value` for clarity, as discussed
[here](https://discord.com/channels/655572317891461132/655578254970716160/1331664574545395794).
The `IntId` refactoring is needed together with `AnyIdBase` because it's
also used with `ValueStore`.

Note, trying to be careful not to rewrite `EnumBase::InvalidIndex`, or
`is_valid` in general (e.g., `IdKind::is_valid`).

I've tried to sequence commits here:

1. Automatic replacements:

- `((?:Id|Index)(?: |::|\(|Base(?:\(|::)))Invalid((?:Index)?\W)` ->
`$1None$2`
  - `<invalid>` -> `<none>`
  - `InvalidNodeId` -> `NoneNodeId`
  - `/\*invalid\*/` -> `/*none*/`
  - `id((?:_|\(\))(?:\.|->))is_valid` -> `id$1has_value`

2. Manual edits:

  - In `int.h` and `int_test.cpp`
    - `IntT` has `is_value`, which I'm renaming to `is_embedded_value`.
    - Manual edits to comments in this file.
  - `AnyIdBase` and `IdBase`
- Declaration of `is_valid` -> `has_value`, `InvalidIndex` ->
`NoneIndex`.
  - In `ids.h` and `ids.cpp`
    - `is_valid` -> `has_value`
- `// An explicitly invalid ID.` -> `// An ID with no value.`; similar
for index
    - Various math on `InvalidIndex` -> `NoneIndex`
    - Various mentions of "valid" in comments
  - In `value_store.h`, for `IdT::Invalid`, plus one comment
- In `impl.h` and `tokenized_buffer.h`, we had different initialization
of `::None` values (versus `ids.h` syntax) that I fixed manually.
  - Spot checks to compile
- Particularly where `is_valid` replacements didn't catch spots due to
different naming.

3. Autoupdate tests

4. verbose.carbon (NOAUTOUPDATE)

5. Comment spot checks

Note there are probably other mentions of "Invalid" that should be swept
up, but I'd like to argue for merging and separating out remaining
cleanup since this is so sweeping (and likely to hit merge conflicts
from churn). We'll probably have lingering mentions of "invalid" for a
bit regardless, just because there are uses of "invalid" in non-Id APIs.
2025-01-22 23:15:00 +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/class/init.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/init.carbon
class Class {
var n: i32;
var next: Class*;
}
fn Make(n: i32, next: Class*) -> Class {
return {.n = n, .next = next};
}
fn MakeReorder(n: i32, next: Class*) -> Class {
return {.next = next, .n = n};
}
// CHECK:STDOUT: --- init.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Class: type = class_type @Class [template]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [template]
// CHECK:STDOUT: %Class.elem.c91: type = unbound_element_type %Class, %i32 [template]
// CHECK:STDOUT: %ptr.e71: type = ptr_type %Class [template]
// CHECK:STDOUT: %Class.elem.0c0: type = unbound_element_type %Class, %ptr.e71 [template]
// CHECK:STDOUT: %struct_type.n.next: type = struct_type {.n: %i32, .next: %ptr.e71} [template]
// CHECK:STDOUT: %complete_type.78f: <witness> = complete_type_witness %struct_type.n.next [template]
// CHECK:STDOUT: %Make.type: type = fn_type @Make [template]
// CHECK:STDOUT: %Make: %Make.type = struct_value () [template]
// CHECK:STDOUT: %MakeReorder.type: type = fn_type @MakeReorder [template]
// CHECK:STDOUT: %MakeReorder: %MakeReorder.type = struct_value () [template]
// CHECK:STDOUT: %struct_type.next.n: type = struct_type {.next: %ptr.e71, .n: %i32} [template]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [template] {
// CHECK:STDOUT: .Int = %Core.Int
// CHECK:STDOUT: import Core//prelude
// CHECK:STDOUT: import Core//prelude/...
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [template] {
// CHECK:STDOUT: .Core = imports.%Core
// CHECK:STDOUT: .Class = %Class.decl
// CHECK:STDOUT: .Make = %Make.decl
// CHECK:STDOUT: .MakeReorder = %MakeReorder.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Core.import = import Core
// CHECK:STDOUT: %Class.decl: type = class_decl @Class [template = constants.%Class] {} {}
// CHECK:STDOUT: %Make.decl: %Make.type = fn_decl @Make [template = constants.%Make] {
// CHECK:STDOUT: %n.patt: %i32 = binding_pattern n
// CHECK:STDOUT: %n.param_patt: %i32 = value_param_pattern %n.patt, runtime_param0
// CHECK:STDOUT: %next.patt: %ptr.e71 = binding_pattern next
// CHECK:STDOUT: %next.param_patt: %ptr.e71 = value_param_pattern %next.patt, runtime_param1
// CHECK:STDOUT: %return.patt: %Class = return_slot_pattern
// CHECK:STDOUT: %return.param_patt: %Class = out_param_pattern %return.patt, runtime_param2
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Class.ref.loc16_34: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT: %n.param: %i32 = value_param runtime_param0
// CHECK:STDOUT: %.loc16_12: type = splice_block %i32 [template = constants.%i32] {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %n: %i32 = bind_name n, %n.param
// CHECK:STDOUT: %next.param: %ptr.e71 = value_param runtime_param1
// CHECK:STDOUT: %.loc16_28: type = splice_block %ptr [template = constants.%ptr.e71] {
// CHECK:STDOUT: %Class.ref.loc16_23: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT: %ptr: type = ptr_type %Class [template = constants.%ptr.e71]
// CHECK:STDOUT: }
// CHECK:STDOUT: %next: %ptr.e71 = bind_name next, %next.param
// CHECK:STDOUT: %return.param: ref %Class = out_param runtime_param2
// CHECK:STDOUT: %return: ref %Class = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: %MakeReorder.decl: %MakeReorder.type = fn_decl @MakeReorder [template = constants.%MakeReorder] {
// CHECK:STDOUT: %n.patt: %i32 = binding_pattern n
// CHECK:STDOUT: %n.param_patt: %i32 = value_param_pattern %n.patt, runtime_param0
// CHECK:STDOUT: %next.patt: %ptr.e71 = binding_pattern next
// CHECK:STDOUT: %next.param_patt: %ptr.e71 = value_param_pattern %next.patt, runtime_param1
// CHECK:STDOUT: %return.patt: %Class = return_slot_pattern
// CHECK:STDOUT: %return.param_patt: %Class = out_param_pattern %return.patt, runtime_param2
// CHECK:STDOUT: } {
// CHECK:STDOUT: %Class.ref.loc20_41: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT: %n.param: %i32 = value_param runtime_param0
// CHECK:STDOUT: %.loc20_19: type = splice_block %i32 [template = constants.%i32] {
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
// CHECK:STDOUT: }
// CHECK:STDOUT: %n: %i32 = bind_name n, %n.param
// CHECK:STDOUT: %next.param: %ptr.e71 = value_param runtime_param1
// CHECK:STDOUT: %.loc20_35: type = splice_block %ptr [template = constants.%ptr.e71] {
// CHECK:STDOUT: %Class.ref.loc20_30: type = name_ref Class, file.%Class.decl [template = constants.%Class]
// CHECK:STDOUT: %ptr: type = ptr_type %Class [template = constants.%ptr.e71]
// CHECK:STDOUT: }
// CHECK:STDOUT: %next: %ptr.e71 = bind_name next, %next.param
// CHECK:STDOUT: %return.param: ref %Class = out_param runtime_param2
// CHECK:STDOUT: %return: ref %Class = return_slot %return.param
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @Class {
// CHECK:STDOUT: %.loc12_8: %Class.elem.c91 = field_decl n, element0 [template]
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %.loc12_3: %Class.elem.c91 = var_pattern %.loc12_8
// CHECK:STDOUT: }
// CHECK:STDOUT: %.var.loc12: ref %Class.elem.c91 = var <none>
// CHECK:STDOUT: %.loc13_11: %Class.elem.0c0 = field_decl next, element1 [template]
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %.loc13_3: %Class.elem.0c0 = var_pattern %.loc13_11
// CHECK:STDOUT: }
// CHECK:STDOUT: %.var.loc13: ref %Class.elem.0c0 = var <none>
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %struct_type.n.next [template = constants.%complete_type.78f]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%Class
// CHECK:STDOUT: .n = %.loc12_8
// CHECK:STDOUT: .next = %.loc13_11
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @Make(%n.param_patt: %i32, %next.param_patt: %ptr.e71) -> %return.param_patt: %Class {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %n.ref: %i32 = name_ref n, %n
// CHECK:STDOUT: %next.ref: %ptr.e71 = name_ref next, %next
// CHECK:STDOUT: %.loc17_31.1: %struct_type.n.next = struct_literal (%n.ref, %next.ref)
// CHECK:STDOUT: %.loc17_31.2: ref %i32 = class_element_access %return, element0
// CHECK:STDOUT: %.loc17_31.3: init %i32 = initialize_from %n.ref to %.loc17_31.2
// CHECK:STDOUT: %.loc17_31.4: ref %ptr.e71 = class_element_access %return, element1
// CHECK:STDOUT: %.loc17_31.5: init %ptr.e71 = initialize_from %next.ref to %.loc17_31.4
// CHECK:STDOUT: %.loc17_31.6: init %Class = class_init (%.loc17_31.3, %.loc17_31.5), %return
// CHECK:STDOUT: %.loc17_32: init %Class = converted %.loc17_31.1, %.loc17_31.6
// CHECK:STDOUT: return %.loc17_32 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @MakeReorder(%n.param_patt: %i32, %next.param_patt: %ptr.e71) -> %return.param_patt: %Class {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %next.ref: %ptr.e71 = name_ref next, %next
// CHECK:STDOUT: %n.ref: %i32 = name_ref n, %n
// CHECK:STDOUT: %.loc21_31.1: %struct_type.next.n = struct_literal (%next.ref, %n.ref)
// CHECK:STDOUT: %.loc21_31.2: ref %i32 = class_element_access %return, element1
// CHECK:STDOUT: %.loc21_31.3: init %i32 = initialize_from %n.ref to %.loc21_31.2
// CHECK:STDOUT: %.loc21_31.4: ref %ptr.e71 = class_element_access %return, element0
// CHECK:STDOUT: %.loc21_31.5: init %ptr.e71 = initialize_from %next.ref to %.loc21_31.4
// CHECK:STDOUT: %.loc21_31.6: init %Class = class_init (%.loc21_31.3, %.loc21_31.5), %return
// CHECK:STDOUT: %.loc21_32: init %Class = converted %.loc21_31.1, %.loc21_31.6
// CHECK:STDOUT: return %.loc21_32 to %return
// CHECK:STDOUT: }
// CHECK:STDOUT:
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