src/tint/lang/spirv/writer/common/function.cc

// Copyright 2020 The Dawn & Tint Authors
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#include "src/tint/lang/spirv/writer/common/function.h"

namespace tint::spirv::writer {

Function::Function() : declaration_(Instruction{spv::Op::OpNop, {}}), label_op_(Operand(0u)) {}

Function::Function(const Instruction& declaration,
                   const Operand& label_op,
                   const InstructionList& params)
    : declaration_(declaration), label_op_(label_op), params_(params) {}

Function::Function(const Function& other) = default;

Function& Function::operator=(const Function& other) = default;

Function::~Function() = default;

void Function::iterate(std::function<void(const Instruction&)> cb) const {
    cb(declaration_);

    for (const auto& param : params_) {
        cb(param);
    }

    cb(Instruction{spv::Op::OpLabel, {label_op_}});

    for (const auto& var : vars_) {
        cb(var);
    }
    for (const auto& inst : instructions_) {
        cb(inst);
    }

    cb(Instruction{spv::Op::OpFunctionEnd, {}});
}

}  // namespace tint::spirv::writer