파이썬 지연 평가 어노테이션

<div class="visual deferred" data-step="0"><div class="visual-head"><strong>DEFERRED ANNOTATION</strong><i></i></div><div class="visual-scene"><div class="defer-line"></div><div class="defer-events"><span>define</span><span>hold expr</span><span>define name</span><span>inspect</span></div><div class="defer-hand"></div></div><div class="visual-caption"></div><div class="visual-dots"><b></b><b></b><b></b><b></b></div></div>

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.visual-head{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:19px;color:var(--accent)}.visual-head strong{font-size:1em}.visual-head i{display:block;width:8px;height:8px;flex:none;border-radius:50%;background:var(--accent);animation:visual-pulse 1.3s infinite}@keyframes visual-pulse{50%{opacity:.25}}
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const root=document.querySelector('.visual'),cap=root.querySelector('.visual-caption'),dots=[...root.querySelectorAll('.visual-dots b')],captions=["Define without resolving","Keep the expression","Name becomes available","Evaluate on inspection"];let step=0;function advance(){root.dataset.step=String(step);cap.textContent=captions[step];dots.forEach((d,i)=>d.classList.toggle('on',i===step));if(root.classList.contains('generic')){root.querySelector('.generic-input').textContent=step===3?'"hi"':'7';root.querySelector('.generic-output').textContent=step===3?'"hi" : string':'7 : number'}if(root.classList.contains('union'))root.querySelector('.set-value').textContent=step%2?'value: "seven"':'value: 7';step=(step+1)%captions.length}advance();let timer=setInterval(advance,1100);root.addEventListener('pointerdown',()=>{clearInterval(timer);advance()})