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#include "src/tint/lang/core/type/swizzle_view.h"

#include "src/tint/lang/core/type/manager.h"
#include "src/tint/lang/core/type/vector.h"
#include "src/tint/utils/math/hash.h"
#include "src/tint/utils/text/string_stream.h"

TINT_INSTANTIATE_TYPEINFO(tint::core::type::SwizzleView);

namespace tint::core::type {

SwizzleView::SwizzleView(core::AddressSpace address_space,
                         const type::Type* store_type,
                         core::Access access,
                         uint32_t from,
                         uint32_t to)
    : Base(Hash(tint::TypeCode::Of<SwizzleView>().bits), address_space, store_type, access),
      from_(from),
      to_(to) {
    TINT_ASSERT(1 <= from_ && from_ < 5);
    TINT_ASSERT(1 <= to_ && to_ < 5);
}

bool SwizzleView::Equals(const UniqueNode& other) const {
    if (auto* o = other.As<SwizzleView>()) {
        return o->AddressSpace() == AddressSpace() && o->StoreType() == StoreType() &&
               o->Access() == Access() && o->FromSize() == FromSize() && o->ToSize() == ToSize();
    }
    return false;
}

std::string SwizzleView::FriendlyName() const {
    StringStream out;
    out << "swizzle<";
    if (AddressSpace() != core::AddressSpace::kUndefined) {
        out << AddressSpace() << ", ";
    }
    out << StoreType()->FriendlyName() << ", " << Access();
    out << ", " << from_;
    out << ", " << to_;
    out << ">";
    return out.str();
}

SwizzleView::~SwizzleView() = default;

SwizzleView* SwizzleView::Clone(CloneContext& ctx) const {
    auto* ty = StoreType()->Clone(ctx);
    return ctx.dst.mgr->Get<SwizzleView>(AddressSpace(), ty, Access(), from_, to_);
}

}  // namespace tint::core::type
