mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-11-15 14:58:09 +00:00
Chandler Carruth
d0badecd2a
Historically, we disabled the rendered form in tests outside of `toolchain/diagnostics`. The idea was to keep tests shorter and avoid very long chains of autoupdate before stabilizing due to all the line numbers and other artifacts in the rendered form. This PR adds `--diagnostic-line-numbers=[all|first]` and defaults to `first` in tests. This keeps the rendered form so that we can easily code review that form and the visual cues it does or doesn't provide. But it removes all but the first location's line numbers to provide significantly more stability in tests. By default, tests get the full unicode line-drawing form of diagnostics so we can ensure all of the artifacts there make sense with the specific case being diagnosed, but we do retain some focused ASCII-rendering tests to ensure that fallback remains usable. There are some issues here that will be fixed in subsequent PRs. Notably, we try to keep the frame together in the check lines, and so force some parts to use the first location. This largely works, but fails in some edge cases, causing the entire frame to be located incorrectly. There is a TODO about this that we need to fix, and it only occurs 6 times across the test suite, so it didn't seem worth front-loading a fix for here. Assisted-by: Claude Code
141 lines
6.8 KiB
Plaintext
141 lines
6.8 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/array.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/function/export/array.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/function/export/array.carbon
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// --- array_value_param.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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fn FArrayValueParam(a: array(i32, 5)) -> i32 { return a[2]; }
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inline Cpp '''
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int GArrayValueParam() {
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int arr[5];
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//@dump-sem-ir-begin
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return Carbon::FArrayValueParam(arr);
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//@dump-sem-ir-end
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}
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int HArrayValueParam() {
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//@dump-sem-ir-begin
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return Carbon::FArrayValueParam({1, 2, 3, 4, 5});
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//@dump-sem-ir-end
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}
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''';
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// --- fail_todo_array_var_param.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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// We do not currently support C++ calls to functions with by-var array
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// parameters, as C++ does not have such parameters.
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// TODO: Support this, perhaps using Clang's `ArrayParameterType`, which is an
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// HLSL extension, or by mapping to a `std::array` parameter.
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// TODO: These diagnostics are very bad.
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// CHECK:STDERR: ╭─┤ fail_todo_array_var_param.carbon:[[@LINE+14]]:1
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// CHECK:STDERR: -> │ fn FArrayVarParam(var a: array(i32, 5)) -> i32 { return a[2]; }
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// CHECK:STDERR: · ━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━
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// CHECK:STDERR: · ┗━━┫ error: semantics TODO: `by-var array parameter`
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// CHECK:STDERR: · ┃ [SemanticsTodo]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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// CHECK:STDERR: ╭─┤ fail_todo_array_var_param.carbon:[[@LINE+7]]:1
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// CHECK:STDERR: -> │ fn FArrayVarParam(var a: array(i32, 5)) -> i32 { return a[2]; }
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// CHECK:STDERR: · ━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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// CHECK:STDERR: · ┗━━┫ error: semantics TODO: `failed to map C++ type to Carbon`
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// CHECK:STDERR: · ┃ [SemanticsTodo]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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fn FArrayVarParam(var a: array(i32, 5)) -> i32 { return a[2]; }
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inline Cpp '''
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int GArrayVarParam() {
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//@dump-sem-ir-begin
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// CHECK:STDERR: ╭─┤ fail_todo_array_var_param.carbon:[[@LINE+25]]:10
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// CHECK:STDERR: │ int GArrayVarParam() {
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// CHECK:STDERR: · ┬
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// CHECK:STDERR: · ╰──┤ 'GArrayVarParam' declared here [CppInteropParseNote]
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// CHECK:STDERR: ┆
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// CHECK:STDERR: -> │ return Carbon::FArrayVarParam({1, 2, 3, 4, 5});
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// CHECK:STDERR: · ┳─────────────────────
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// CHECK:STDERR: · ┗━━┫ error: no member named 'FArrayVarParam' in namespace 'Carbon'; did
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// CHECK:STDERR: · │ ┃ you mean 'GArrayVarParam'?
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// CHECK:STDERR: · │ ┃ [CppInteropParseError]
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// CHECK:STDERR: · ╰────┤ replace with `GArrayVarParam` [CppInteropFixItReplacement]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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// CHECK:STDERR: ╭─┤ fail_todo_array_var_param.carbon:[[@LINE+12]]:33
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// CHECK:STDERR: │ int GArrayVarParam() {
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// CHECK:STDERR: · ┬
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// CHECK:STDERR: · ╰──┤ 'GArrayVarParam' declared here [CppInteropParseNote]
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// CHECK:STDERR: ┆
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// CHECK:STDERR: -> │ return Carbon::FArrayVarParam({1, 2, 3, 4, 5});
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// CHECK:STDERR: · ────────────── ┳━━━━━━━━━━━━━━
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// CHECK:STDERR: · ┗━━┫ error: too many arguments to function call,
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// CHECK:STDERR: · ┃ expected 0, have 1
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// CHECK:STDERR: · ┃ [CppInteropParseError]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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return Carbon::FArrayVarParam({1, 2, 3, 4, 5});
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//@dump-sem-ir-end
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}
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''';
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// --- fail_todo_array_return.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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// We do not currently support C++ calls to functions with array return
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// types, as C++ does not have such return types.
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// TODO: Support this, perhaps by returning a `std::array`.
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// CHECK:STDERR: ╭─┤ fail_todo_array_return.carbon:[[@LINE+7]]:1
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// CHECK:STDERR: -> │ fn FArrayReturn() -> array(i32, 5) {
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// CHECK:STDERR: · ━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━
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// CHECK:STDERR: · ┗━━┫ error: semantics TODO: `array return type`
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// CHECK:STDERR: · ┃ [SemanticsTodo]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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fn FArrayReturn() -> array(i32, 5) {
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return (1, 2, 3, 4, 5);
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}
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inline Cpp '''
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int GArrayReturn() {
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// CHECK:STDERR: ╭─┤ fail_todo_array_return.carbon:[[@LINE+13]]:16
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// CHECK:STDERR: │ int GArrayReturn() {
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// CHECK:STDERR: · ┬
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// CHECK:STDERR: · ╰──┤ 'GArrayReturn' declared here [CppInteropParseNote]
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// CHECK:STDERR: ┆
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// CHECK:STDERR: -> │ auto &&arr = Carbon::FArrayReturn();
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// CHECK:STDERR: · ┳───────────────────
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// CHECK:STDERR: · ┗━━┫ error: no member named 'FArrayReturn' in namespace 'Carbon';
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// CHECK:STDERR: · │ ┃ did you mean 'GArrayReturn'?
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// CHECK:STDERR: · │ ┃ [CppInteropParseError]
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// CHECK:STDERR: · ╰────┤ replace with `GArrayReturn` [CppInteropFixItReplacement]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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auto &&arr = Carbon::FArrayReturn();
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// CHECK:STDERR: ╭─┤ fail_todo_array_return.carbon:[[@LINE+7]]:13
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// CHECK:STDERR: -> │ return arr[0];
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// CHECK:STDERR: · ──╴╻╶
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// CHECK:STDERR: · ┗━━┫ error: subscripted value is not an array, pointer, or vector
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// CHECK:STDERR: · ┃ [CppInteropParseError]
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// CHECK:STDERR: ╰────
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// CHECK:STDERR:
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return arr[0];
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}
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''';
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