mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-11-15 21:28:10 +00:00
Chandler Carruth
2c9739799b
Diagnostic rendering was part of the data model: `Loc::FormatLocation` and `Loc::FormatSnippet` wrote plain text to a stream, so no capability, color, or terminal width could reach them. A diagnostic is now one message with labels, contexts, and location information attached, and `Diagnostics::Renderer` draws it into a `Terminal::Buffer`. The design is in `toolchain/docs/diagnostics_rendering.md` (#7668), authoring in `toolchain/docs/diagnostics.md`. Before: ``` example.carbon:6:3: error: 1 argument passed to function expecting 0 arguments Run0(1); ^~~~~~~ example.carbon:3:1: note: calling function declared here fn Run0() {} ^~~~~~~~~~~ ``` After: ``` error: 1 argument passed to function expecting 0 arguments ╭─┤ example.carbon:6:3 ┆ 3 │ fn Run0() {} · ─────┬───── · ╰──┤ calling function declared here ┆ -> 6 │ Run0(1); · ─────── ╰──────────── ``` `--no-diagnostic-snippets` gives a compact form, `example.carbon:6:3-9`. File tests use it; the rendering tests under `toolchain/diagnostics/testdata` ask for snippets. C++ interop diagnostics are data now rather than text Clang drew: `SemIR::ClangSourceLocId` names a `clang::SourceRange`, and a Clang location is marked as the point it names. `StreamConsumer` moves to a `:renderer` target that `:emitter` does not depend on, keeping `common/terminal` out of `consumer.h`. Capabilities come from the file behind the error stream, so tests get plain ASCII. `renderer_fuzzer` draws diagnostics built from fuzzer bytes with every capability combination, since a shape the renderer doesn't expect must never be why the compiler dies while reporting a problem. TODOs mark the follow-ups: line weights and crossing lines, wrapping that keeps a quoted type whole, and ordering diagnostics that share a byte offset. Also: `IncorrectExtension`'s hint moves into its message, since its note had no location of its own, and `strip_noise` in `check_diagnostics.py` blanks multi-line `#define`s instead of deleting them. Assisted-by: Claude Code
74 lines
3.6 KiB
Plaintext
74 lines
3.6 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/int.carbon
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// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
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// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
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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/interface/fail_assoc_const_bad_default.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/interface/fail_assoc_const_bad_default.carbon
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interface I {
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// CHECK:STDERR: fail_assoc_const_bad_default.carbon:[[@LINE+3]]:3-19: error: cannot implicitly convert non-type value of type `Core.IntLiteral` to `type` [ConversionFailureNonTypeToFacet]
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// CHECK:STDERR: fail_assoc_const_bad_default.carbon:[[@LINE+2]]:3-19: note: type `Core.IntLiteral` does not implement interface `Core.ImplicitAs(type)` [MissingImplInMemberAccessInContext]
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// CHECK:STDERR:
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let T: type = 42;
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}
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// CHECK:STDOUT: --- fail_assoc_const_bad_default.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: type: type = facet_type <type> [concrete]
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// CHECK:STDOUT: %I.type: type = facet_type <@I> [concrete]
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// CHECK:STDOUT: %Self.37e: %I.type = symbolic_binding Self, 0 [symbolic]
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// CHECK:STDOUT: %I.assoc_type: type = assoc_entity_type @I [concrete]
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// CHECK:STDOUT: %assoc0.2ce: %I.assoc_type = assoc_entity element0, @I.WithSelf.%T [concrete]
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// CHECK:STDOUT: %int_42: Core.IntLiteral = int_value 42 [concrete]
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// CHECK:STDOUT: %ImplicitAs.type.0ff: type = generic_interface_type @ImplicitAs [concrete]
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// CHECK:STDOUT: %ImplicitAs.generic: %ImplicitAs.type.0ff = struct_value () [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: imports {
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// CHECK:STDOUT: %Core: <namespace> = namespace file.%Core.import, [concrete] {
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// CHECK:STDOUT: .ImplicitAs = %Core.ImplicitAs
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// CHECK:STDOUT: import Core//prelude
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// CHECK:STDOUT: import Core//prelude/...
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.ImplicitAs: %ImplicitAs.type.0ff = import_ref Core//prelude/parts/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .Core = imports.%Core
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// CHECK:STDOUT: .I = %I.decl
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Core.import = import Core
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// CHECK:STDOUT: %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @I {
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// CHECK:STDOUT: %Self: %I.type = symbolic_binding Self, 0 [symbolic = constants.%Self.37e]
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// CHECK:STDOUT: %I.WithSelf.decl = interface_with_self_decl @I [concrete]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !with Self:
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// CHECK:STDOUT: %T: type = assoc_const_decl @T [concrete] {
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// CHECK:STDOUT: %assoc0: %I.assoc_type = assoc_entity element0, @I.WithSelf.%T [concrete = constants.%assoc0.2ce]
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// CHECK:STDOUT: %int_42: Core.IntLiteral = int_value 42 [concrete = constants.%int_42]
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// CHECK:STDOUT: %.loc19: type = converted %int_42, <error> [concrete = <error>]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: .T = @T.%assoc0
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// CHECK:STDOUT: witness = (@I.WithSelf.%T)
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// CHECK:STDOUT:
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// CHECK:STDOUT: !requires:
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @I.WithSelf(constants.%Self.37e) {}
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// CHECK:STDOUT:
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