{ "ver": 1, "comp": "chapter02/docs/02-demonstration-peephole.svg", "step": 1, "roots": [], "scope": 0, "nodes": [ {"id": 1, "label": "Start", "type": null, "kind": "CTRL", "edges": [], "proj": null}, {"id": 5, "label": "#3", "type": null, "kind": "DATA", "edges": [{"idx": 0, "def": 1, "role": "ASSOC", "label": null}], "proj": null}, {"id": 6, "label": "Return", "type": null, "kind": "CTRL", "edges": [{"idx": 0, "def": 1, "role": "CTRL", "label": null}, {"idx": 1, "def": 5, "role": "DATA", "label": null}], "proj": null} ], "groups": [ ] }