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Feature/propagate node #343

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Feature/propagate node #343

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63a86a0
Propagate the node to the users Control methods.
Apr 4, 2023
fc24142
Break out a reference to the node to be passed along. (Easier to debug).
Apr 4, 2023
e87f6e1
Clang-format cleanup.
Apr 11, 2023
fd8f999
More clang-format cleanup.
Apr 11, 2023
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11 changes: 8 additions & 3 deletions include/tao/pegtl/contrib/parse_tree.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -290,9 +290,10 @@ namespace tao::pegtl::parse_tree
template< typename ParseInput, typename... States >
static void start( const ParseInput& in, state< Node >& state, States&&... st )
{
Control< Rule >::start( in, st... );
state.emplace_back();
state.back()->template start< Rule >( in, st... );
auto& n = state.back()->children.back();
Control< Rule >::start( in, n, st... );
}

template< typename ParseInput, typename... States >
Expand All @@ -304,16 +305,20 @@ namespace tao::pegtl::parse_tree
transform< Selector< Rule > >( in, n, st... );
if( n ) {
state.back()->emplace_back( std::move( n ), st... );
Control< Rule >::success( in, state.back()->children.back(), st... );
}
else {
auto null_child = std::make_unique<Node>();
Control< Rule >::success( in, null_child, st... );
}
Control< Rule >::success( in, st... );
}

template< typename ParseInput, typename... States >
static void failure( const ParseInput& in, state< Node >& state, States&&... st )
{
state.back()->template failure< Rule >( in, st... );
Control< Rule >::failure( in, state.back()->children.back(), st... );
state.pop_back();
Control< Rule >::failure( in, st... );
}

template< typename ParseInput, typename... States >
Expand Down