address_space_feature.cc | Explore in Territory

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#include "third_party/blink/public/common/security/address_space_feature.h"

#include <tuple>

namespace blink {
namespace {

AddressSpace;
Feature;

// A key in |kFeatureMap|.
//
// Mirrors the arguments to |AddressSpaceFeature()| except for |fetch_type|.
struct FeatureKey { … };

// FeatureKey instances are comparable for equality.
bool operator==(const FeatureKey& lhs, const FeatureKey& rhs) { … }

// An entry in |kFeatureMap|.
//
// A single key maps to features for all |fetch_type| values. We could instead
// have two maps, one for subresources and one for navigations, but they would
// have the exact same set of keys. Hence it is simpler to have a single map.
struct FeatureEntry { … };

constexpr bool kNonSecureContext = …;
constexpr bool kSecureContext = …;

constexpr struct FeatureEntry kFeatureMap[] = …;

// Attempts to find an entry matching |key| in |kFeatureMap|.
// Returns a pointer to the entry if successful, nullptr otherwise.
const FeatureEntry* FindFeatureEntry(const FeatureKey& key) { … }

}  // namespace

std::optional<Feature> AddressSpaceFeature(
    FetchType fetch_type,
    AddressSpace client_address_space,
    bool client_is_secure_context,
    AddressSpace response_address_space) { … }

}  // namespace blink
chromium/third_party/blink/common/security/address_space_feature.cc
