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75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
//===--- WarningAsErrorRule.h -----------------------------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2024 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_BASIC_WARNINGASERRORRULE_H
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#define SWIFT_BASIC_WARNINGASERRORRULE_H
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#include "llvm/Support/ErrorHandling.h"
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#include <string>
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#include <variant>
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#include <vector>
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namespace swift {
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/// Describes a rule how to treat a warning or all warnings.
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class WarningAsErrorRule {
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public:
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enum class Action { Disable, Enable };
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struct TargetAll {};
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struct TargetGroup {
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std::string name;
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};
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using Target = std::variant<TargetAll, TargetGroup>;
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/// Init as a rule targeting all diagnostic groups
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WarningAsErrorRule(Action action) : action(action), target(TargetAll()) {}
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/// Init as a rule targeting a specific diagnostic group
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WarningAsErrorRule(Action action, const std::string &group)
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: action(action), target(TargetGroup{group}) {}
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Action getAction() const { return action; }
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Target getTarget() const { return target; }
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static bool hasConflictsWithSuppressWarnings(
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const std::vector<WarningAsErrorRule> &rules) {
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bool warningsAsErrorsAllEnabled = false;
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for (const auto &rule : rules) {
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const auto target = rule.getTarget();
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if (std::holds_alternative<TargetAll>(target)) {
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// Only `-warnings-as-errors` conflicts with `-suppress-warnings`
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switch (rule.getAction()) {
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case WarningAsErrorRule::Action::Enable:
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warningsAsErrorsAllEnabled = true;
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break;
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case WarningAsErrorRule::Action::Disable:
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warningsAsErrorsAllEnabled = false;
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break;
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}
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} else if (std::holds_alternative<TargetGroup>(target)) {
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// Both `-Wwarning` and `-Werror` conflict with `-suppress-warnings`
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return true;
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} else {
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llvm_unreachable("unhandled WarningAsErrorRule::Target");
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}
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}
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return warningsAsErrorsAllEnabled;
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}
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private:
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Action action;
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Target target;
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};
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} // end namespace swift
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#endif // SWIFT_BASIC_WARNINGASERRORRULE_H
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