%% LaTeX2e file `tmp-gen-anatomy-of-a-while-loop.tex'
%% generated by the `filecontents' environment
%% from source `codeanatomy.lstlisting' on 2025/10/19.
%%
\lstset{escapeinside={!}{!}}
\begin{lrbox}{\mycodebox}
\begin{lstlisting}
!\cPart{i}{\bgcode{int power = 1;}}\phantom{\rule[-2ex]{0.1ex}{0.1ex}}!
while ( !\cPart{c}{power <= n/2}! )
!\cPart{po}{\{}!
    !\cPart{b}{power = 2*power;}!
!\cPart{pc}{\}}!
\end{lstlisting}
\end{lrbox}


\begin{tikzpicture}[remember picture]
%    {[on background layer]\draw[code grid debug] (-2.5,-0.5) grid (2.5,2.5);}
\node(code) [anatomy] at (0,0) {\usebox\mycodebox};

% Annotation
\codeAnnotation{iText}  (-1,3.25) {initialization is a\\separate statement}
\codeAnnotation{cText} (3.5,3)    {loop-\\continuation\\condition}
\codeAnnotation{pText} (-1.5,0.5) {braces are\\optional\\when body\\is a single\\statement}
\codeAnnotation{bText} (2.125,-0.5) {body}
% Arrows
\draw[->,annotation] (iText) -- (i.north west);
\draw[->,annotation] (cText) -- (c);
\draw[->,annotation] (bText) -- (b);
\draw[->,annotation] (pText) -- (po);
\draw[->,annotation] (pText) -- (pc);
\end{tikzpicture}