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[llvm][Object] Add missing const qualifier for value_type in content_iterator #124106

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Merged
merged 3 commits into from
Jan 28, 2025
Merged

[llvm][Object] Add missing const qualifier for value_type in content_iterator #124106

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cc28e55
[llvm][Object] Add missing const qualifier for value_type in content_…
Jan 23, 2025
27d2197
added unit test
Jan 24, 2025
ec01c39
Addressing kuhar's and jh7370's comments
Jan 27, 2025
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2 changes: 1 addition & 1 deletion llvm/include/llvm/Object/SymbolicFile.h
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Original file line number Diff line number Diff line change
Expand Up @@ -71,7 +71,7 @@ template <class content_type> class content_iterator {

public:
using iterator_category = std::forward_iterator_tag;
using value_type = content_type;
using value_type = const content_type;
using difference_type = std::ptrdiff_t;
using pointer = value_type *;
using reference = value_type &;
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21 changes: 21 additions & 0 deletions llvm/unittests/Object/SymbolicFileTest.cpp
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Expand Up @@ -7,8 +7,10 @@
//===----------------------------------------------------------------------===//

#include "llvm/Object/SymbolicFile.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Host.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <sstream>

Expand Down Expand Up @@ -38,3 +40,22 @@ TEST(Object, DataRefImplOstream) {

EXPECT_EQ(Expected, s);
}

struct ProxyContent {
unsigned Index = 0;
ProxyContent(unsigned Index) : Index(Index) {};
void moveNext() { ++Index; }

bool operator==(const ProxyContent &Another) const {
return Index == Another.Index;
}
};

TEST(Object, ContentIterator) {
using Iter = llvm::object::content_iterator<ProxyContent>;
auto Sequence = llvm::make_range(Iter(0u), Iter(10u));
auto EvenSequence = llvm::make_filter_range(
Sequence, [](auto &&PC) { return PC.Index % 2 == 0; });

EXPECT_THAT(EvenSequence, testing::ElementsAre(0u, 2u, 4u, 6u, 8u));
}
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