%% LaTeX2e file `tmp-gen-using-a-primitive-data-type.tex'
%% generated by the `filecontents' environment
%% from source `codeanatomy.lstlisting' on 2025/10/19.
%%
\lstset{escapeinside={!}{!}}
\begin{lrbox}{\mycodebox}
\begin{lstlisting}
!\cPart{d}{int a, b;}!
!\iPart{v}{a}! = !\cPart{l}{1234}!;
!\iPart{a}{b = 99}!;
!\cPart{i}{int c = a + b}!;
\end{lstlisting}
\end{lrbox}
\begin{tikzpicture}[
remember picture %
,code annotation/.append style = { % customize style of annotation text
  font=\sffamily\footnotesize
}
]
{[on background layer]\draw[code grid debug] (-2.5,-0.5) grid (2.5,2.5);}
\node(code) [anatomy] at (0,0){\usebox\mycodebox};
% Annotations
\codeAnnotation{declareText}   (   1,2.75 )   {declaration statement}
\codeAnnotation{literalText}   (  2.5,1.45)   {literal}
\codeAnnotation{varText}       (-1.5,1.75 )   {variable name}
\codeAnnotation{assignText}    (-1.5,0.75 )   {assignment\\statement}
\codeAnnotation{initText}      (-1.5,-0.75)   {inline initialization\\statement}
% Arrows
\draw[->,annotation] (declareText) -- (d);
\draw[->,annotation] (literalText) -- (l);
\draw[->,annotation] (varText.south east) -- (v);
\draw[->,annotation] (assignText) -- (a);
\draw[->,annotation] (initText) -- (i.south west);
\end{tikzpicture}