6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
//===-- LVCompare.h ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the LVCompare class, which is used to describe a logical
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// view comparison.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_LOGICALVIEW_CORE_LVCOMPARE_H
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#define LLVM_DEBUGINFO_LOGICALVIEW_CORE_LVCOMPARE_H
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#include "llvm/DebugInfo/LogicalView/Core/LVObject.h"
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namespace llvm {
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namespace logicalview {
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class LVReader;
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// Record the elements missing or added and their compare pass.
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using LVPassEntry = std::tuple<LVReader *, LVElement *, LVComparePass>;
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using LVPassTable = std::vector<LVPassEntry>;
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class LVCompare final {
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raw_ostream &OS;
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LVScopes ScopeStack;
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// As the comparison is performed twice (by exchanging the reference
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// and target readers) the element missing/added status does specify
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// the comparison pass.
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// By recording each missing/added elements along with its pass, it
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// allows checking which elements were missing/added during each pass.
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LVPassTable PassTable;
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// Reader used on the LHS of the comparison.
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// In the 'Missing' pass, it points to the reference reader.
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// In the 'Added' pass it points to the target reader.
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LVReader *Reader = nullptr;
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bool FirstMissing = true;
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bool PrintLines = false;
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bool PrintScopes = false;
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bool PrintSymbols = false;
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bool PrintTypes = false;
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static void setInstance(LVCompare *Compare);
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void printCurrentStack();
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void printSummary() const;
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public:
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LVCompare() = delete;
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LVCompare(raw_ostream &OS);
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LVCompare(const LVCompare &) = delete;
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LVCompare &operator=(const LVCompare &) = delete;
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~LVCompare() = default;
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static LVCompare &getInstance();
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// Scopes stack used during the missing/added reporting.
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void push(LVScope *Scope) { ScopeStack.push_back(Scope); }
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void pop() { ScopeStack.pop_back(); }
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// Perform comparison between the 'Reference' and 'Target' scopes tree.
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Error execute(LVReader *ReferenceReader, LVReader *TargetReader);
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void addPassEntry(LVReader *Reader, LVElement *Element, LVComparePass Pass) {
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PassTable.emplace_back(Reader, Element, Pass);
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}
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const LVPassTable &getPassTable() const & { return PassTable; }
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void printItem(LVElement *Element, LVComparePass Pass);
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void print(raw_ostream &OS) const;
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#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
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void dump() const { print(dbgs()); }
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#endif
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};
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inline LVCompare &getComparator() { return LVCompare::getInstance(); }
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} // end namespace logicalview
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_LOGICALVIEW_CORE_LVCOMPARE_H
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