generic-library/ChaiScript
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Optimize dispatch for perfect match case

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This commit is contained in:
Jason Turner
2016-04-20 07:26:42 -06:00
parent 06b2893bfb
commit 647f8842fd
1 changed files with 6 additions and 11 deletions
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17
include/chaiscript/dispatchkit/proxy_functions.hpp
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@@ -181,20 +181,15 @@ namespace chaiscript
//! to the passed in values //! to the passed in values
bool filter(const std::vector<Boxed_Value> &vals, const Type_Conversions_State &t_conversions) const bool filter(const std::vector<Boxed_Value> &vals, const Type_Conversions_State &t_conversions) const
{ {
assert(m_arity == -1 || (m_arity > 1 && vals.size() == m_arity));
if (m_arity < 0) if (m_arity < 0)
{ {
return true; return true;
} else if (static_cast<size_t>(m_arity) == vals.size()) { } else if (m_arity > 1) {
if (m_arity == 0) return compare_type_to_param(m_types[1], vals[0], t_conversions) && compare_type_to_param(m_types[2], vals[1], t_conversions);
{
return true;
} else if (m_arity > 1) {
return compare_type_to_param(m_types[1], vals[0], t_conversions) && compare_type_to_param(m_types[2], vals[1], t_conversions);
} else {
return compare_type_to_param(m_types[1], vals[0], t_conversions);
}
} else { } else {
return false; return compare_type_to_param(m_types[1], vals[0], t_conversions);
} }
} }
@@ -887,7 +882,7 @@ namespace chaiscript
for (const auto &func : ordered_funcs ) for (const auto &func : ordered_funcs )
{ {
try { try {
if (func.first == i && func.second->filter(plist, t_conversions)) if (func.first == i && (i == 0 || func.second->filter(plist, t_conversions)))
{ {
return (*(func.second))(plist, t_conversions); return (*(func.second))(plist, t_conversions);
} }