mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 10:41:03 +01:00
Jon Ross-Perkins
8ee0ecec94
Visible with bazel test //toolchain/parser/testdata:if/fail_errors.carbon.test --runs_per_test=20 (produces 2 errors on the same line)
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// 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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#ifndef CARBON_TOOLCHAIN_DIAGNOSTICS_SORTING_DIAGNOSTIC_CONSUMER_H_
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#define CARBON_TOOLCHAIN_DIAGNOSTICS_SORTING_DIAGNOSTIC_CONSUMER_H_
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#include "common/check.h"
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#include "llvm/ADT/STLExtras.h"
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#include "toolchain/diagnostics/diagnostic_emitter.h"
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namespace Carbon {
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// Buffers incoming diagnostics for printing and sorting.
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class SortingDiagnosticConsumer : public DiagnosticConsumer {
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public:
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explicit SortingDiagnosticConsumer(DiagnosticConsumer& next_consumer)
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: next_consumer_(&next_consumer) {}
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~SortingDiagnosticConsumer() override { Flush(); }
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// Buffers the diagnostic.
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auto HandleDiagnostic(const Diagnostic& diagnostic) -> void override {
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diagnostics_.push_back(diagnostic);
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}
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// Sorts and flushes buffered diagnostics.
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void Flush() override {
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llvm::stable_sort(diagnostics_, [](const Diagnostic& lhs,
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const Diagnostic& rhs) {
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return std::tie(lhs.location.line_number, lhs.location.column_number) <
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std::tie(rhs.location.line_number, rhs.location.column_number);
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});
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for (const auto& diagnostic : diagnostics_) {
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next_consumer_->HandleDiagnostic(diagnostic);
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}
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diagnostics_.clear();
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}
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private:
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llvm::SmallVector<Diagnostic, 0> diagnostics_;
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DiagnosticConsumer* next_consumer_;
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};
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} // namespace Carbon
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#endif // CARBON_TOOLCHAIN_DIAGNOSTICS_SORTING_DIAGNOSTIC_CONSUMER_H_
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