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rpc: Add RPCHelpMan::IsValidNumArgs()

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This commit is contained in:
MarcoFalke
2019-02-12 20:16:29 -05:00
parent f9775a8655
commit fa05626ca7
2 changed files with 28 additions and 9 deletions
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29
src/rpc/util.cpp
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@@ -1,4 +1,4 @@
// Copyright (c) 2017-2018 The Bitcoin Core developers
// Copyright (c) 2017-2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
@@ -315,6 +315,17 @@ std::string RPCExamples::ToDescriptionString() const
return m_examples.empty() ? m_examples : "\nExamples:\n" + m_examples;
}
bool RPCHelpMan::IsValidNumArgs(size_t num_args) const
{
size_t num_required_args = 0;
for (size_t n = m_args.size(); n > 0; --n) {
if (!m_args.at(n - 1).IsOptional()) {
num_required_args = n;
break;
}
}
return num_required_args <= num_args && num_args <= m_args.size();
}
std::string RPCHelpMan::ToString() const
{
std::string ret;
@@ -323,12 +334,7 @@ std::string RPCHelpMan::ToString() const
ret += m_name;
bool was_optional{false};
for (const auto& arg : m_args) {
bool optional;
if (arg.m_fallback.which() == 1) {
optional = true;
} else {
optional = RPCArg::Optional::NO != boost::get<RPCArg::Optional>(arg.m_fallback);
}
const bool optional = arg.IsOptional();
ret += " ";
if (optional) {
if (!was_optional) ret += "( ";
@@ -370,6 +376,15 @@ std::string RPCHelpMan::ToString() const
return ret;
}
bool RPCArg::IsOptional() const
{
if (m_fallback.which() == 1) {
return true;
} else {
return RPCArg::Optional::NO != boost::get<RPCArg::Optional>(m_fallback);
}
}
std::string RPCArg::ToDescriptionString() const
{
std::string ret;