Method createMetadata

libsolidity/interface/CompilerStack.cpp:1746–1876

}

std::string CompilerStack::createMetadata(Contract const& _contract, bool _forIR) const
{
	Json meta;
	meta["version"] = 1;
	std::string sourceType;
	switch (m_compilationSourceType)
	{
	case CompilationSourceType::Solidity:
		sourceType = "Solidity";
		break;
	case CompilationSourceType::SolidityAST:
		sourceType = "SolidityAST";
		break;
	}
	meta["language"] = sourceType;
	meta["compiler"]["version"] = VersionStringStrict;

	/// All the source files (including self), which should be included in the metadata.
	std::set<std::string> referencedSources;
	referencedSources.insert(*_contract.contract->sourceUnit().annotation().path);
	for (auto const sourceUnit: _contract.contract->sourceUnit().referencedSourceUnits(true))
		referencedSources.insert(*sourceUnit->annotation().path);

	meta["sources"] = Json::object();
	for (auto const& s: m_sources)
	{
		if (!referencedSources.count(s.first))
			continue;

		solAssert(s.second.charStream, "Character stream not available");
		meta["sources"][s.first]["keccak256"] = "0x" + util::toHex(s.second.keccak256().asBytes());
		if (std::optional<std::string> licenseString = s.second.ast->licenseString())
			meta["sources"][s.first]["license"] = *licenseString;
		if (m_metadataLiteralSources)
			meta["sources"][s.first]["content"] = s.second.charStream->source();
		else
		{
			meta["sources"][s.first]["urls"] = Json::array();
			meta["sources"][s.first]["urls"].emplace_back("bzz-raw://" + util::toHex(s.second.swarmHash().asBytes()));
			meta["sources"][s.first]["urls"].emplace_back(s.second.ipfsUrl());
		}
	}

	static_assert(sizeof(m_optimiserSettings.expectedExecutionsPerDeployment) <= sizeof(Json::number_integer_t), "Invalid word size.");
	solAssert(static_cast<Json::number_integer_t>(m_optimiserSettings.expectedExecutionsPerDeployment) < std::numeric_limits<Json::number_integer_t>::max(), "");
	meta["settings"]["optimizer"]["runs"] = Json::number_integer_t(m_optimiserSettings.expectedExecutionsPerDeployment);

	/// Backwards compatibility: If set to one of the default settings, do not provide details.
	OptimiserSettings settingsWithoutRuns = m_optimiserSettings;
	// reset to default
	settingsWithoutRuns.expectedExecutionsPerDeployment = OptimiserSettings::minimal().expectedExecutionsPerDeployment;
	if (settingsWithoutRuns == OptimiserSettings::minimal())
		meta["settings"]["optimizer"]["enabled"] = false;
	else if (settingsWithoutRuns == OptimiserSettings::standard())
		meta["settings"]["optimizer"]["enabled"] = true;
	else
	{
		Json details = Json::object();