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

#include <utility>

#include "src/tint/lang/core/ir/clone_context.h"
#include "src/tint/lang/core/ir/function.h"
#include "src/tint/lang/core/ir/module.h"

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

namespace tint::core::ir {

Return::Return(Function* func) {
    AddOperand(Return::kFunctionOperandOffset, func);
}

Return::Return(Function* func, ir::Value* arg) {
    AddOperand(Return::kFunctionOperandOffset, func);
    AddOperand(Return::kArgOperandOffset, arg);
}

Return::~Return() = default;

Return* Return::Clone(CloneContext& ctx) {
    auto* fn = ctx.Remap(Func());
    if (auto* val = Value()) {
        return ctx.ir.instructions.Create<Return>(fn, ctx.Remap(val));
    }
    return ctx.ir.instructions.Create<Return>(fn);
}

Function* Return::Func() const {
    return tint::As<Function>(operands_[kFunctionOperandOffset]);
}

}  // namespace tint::core::ir