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#include "src/tint/lang/core/ir/next_iteration.h"

#include <utility>

#include "src/tint/lang/core/ir/clone_context.h"
#include "src/tint/lang/core/ir/loop.h"
#include "src/tint/lang/core/ir/module.h"
#include "src/tint/lang/core/ir/multi_in_block.h"
#include "src/tint/utils/ice/ice.h"

TINT_INSTANTIATE_TYPEINFO(tint::core::ir::NextIteration);

namespace tint::core::ir {

NextIteration::NextIteration() = default;

NextIteration::NextIteration(ir::Loop* loop, VectorRef<Value*> args /* = tint::Empty */)
    : loop_(loop) {
    TINT_ASSERT(loop_);

    AddOperands(NextIteration::kArgsOperandOffset, std::move(args));

    if (loop_) {
        loop_->Body()->AddInboundSiblingBranch(this);
    }
}

NextIteration::~NextIteration() = default;

NextIteration* NextIteration::Clone(CloneContext& ctx) {
    auto* new_loop = ctx.Clone(loop_);
    auto args = ctx.Remap<NextIteration::kDefaultNumOperands>(Args());
    return ctx.ir.allocators.instructions.Create<NextIteration>(new_loop, args);
}

void NextIteration::SetLoop(ir::Loop* loop) {
    if (loop_ && loop_->Body()) {
        loop_->Body()->RemoveInboundSiblingBranch(this);
    }
    loop_ = loop;
    if (loop) {
        loop->Body()->AddInboundSiblingBranch(this);
    }
}

}  // namespace tint::core::ir