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Lua int ref typemap improvements

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Fixes complex typedefs to const int& and const unsigned int&.
Fixes cpp11_type_aliasing testcase
This commit is contained in:
William S Fulton 2021-11-12 19:30:53 +00:00
commit 01eb2e0aa9
1 changed files with 4 additions and 4 deletions
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8
Lib/lua/luatypemaps.swg
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@ -39,12 +39,12 @@ $1 = ($type)lua_tonumber(L, $input);%}
// SWIG assumes that this code will need a pointer to int to be passed in
// (this might be ok for objects by const ref, but not for numeric primitives)
// therefore we add a set of typemaps to fix this (for both in & out)
%typemap(in,checkfn="lua_isnumber") const int&($basetype temp)
%{ temp=($basetype)lua_tonumber(L,$input); $1=&temp;%}
%typemap(in,checkfn="lua_isnumber") const int&($*1_ltype temp)
%{ temp=($*1_ltype)lua_tonumber(L,$input); $1=&temp;%}
%typemap(in,checkfn="lua_isnumber") const unsigned int&($basetype temp)
%typemap(in,checkfn="lua_isnumber") const unsigned int&($*1_ltype temp)
%{SWIG_contract_assert((lua_tonumber(L,$input)>=0),"number must not be negative")
temp=($basetype)lua_tonumber(L,$input); $1=&temp;%}
temp=($*1_ltype)lua_tonumber(L,$input); $1=&temp;%}
%typemap(out) const int&, const unsigned int&
%{ lua_pushnumber(L, (lua_Number) *$1); SWIG_arg++;%}