Initial commit

2026-06-29 15:11:48 -07:00
commit 66dfdcc58d
404 changed files with 45970 additions and 0 deletions
@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+"""Replicate the (updated) reconstructFlexRow and report success + bail reasons + band impact."""
+import json, glob, os, sys, collections
+run = sys.argv[1] if len(sys.argv) > 1 else "compiler/output-dense/sample/.clone"
+caps = {}
+for f in sorted(glob.glob(os.path.join(run, "source/capture/dom-*.json"))):
+    caps[int(os.path.basename(f)[4:-5])] = json.load(open(f))["root"]
+VPS = sorted(caps); BAND_VPS = [v for v in (375, 768, 1280, 1920) if v in VPS]
+acc = []
+def walkidx(n):
+    n["_i"] = len(acc); acc.append(n); n["_kids"] = []
+    for c in (n.get("children") or []):
+        n["_kids"].append(len(acc)); walkidx(c)
+walkidx(caps[VPS[0]])
+N = len(acc)
+# per-vp flat lists aligned by index
+F = {vp: [] for vp in VPS}
+def flat(n, a):
+    a.append(n)
+    for c in (n.get("children") or []): flat(c, a)
+for vp in VPS: flat(caps[vp], F[vp])
+def pf(v):
+    try: return float(str(v).replace("px", ""))
+    except: return 0.0
+def CS(i, vp): return F[vp][i].get("computed") or {}
+def BB(i, vp): return F[vp][i].get("bbox") or {}
+def VIS(i, vp): return F[vp][i].get("visible")
+reasons = collections.Counter(); succ = 0; succ_items = 0; bands_removed = 0
+for i in range(N):
+    c0 = CS(i, VPS[0]); disp = c0.get("display", "")
+    if "flex" not in disp: continue
+    if c0.get("flexDirection", "row") not in ("row", "row-reverse"): reasons["not_row"] += 1; continue
+    if (c0.get("flexWrap") or "nowrap") != "nowrap": reasons["wrap"] += 1; continue
+    info = []; bail = None
+    for k in acc[i]["_kids"]:
+        if not acc[k].get("tag"): continue
+        ck = CS(k, VPS[0]); pos = ck.get("position", "static")
+        if pos in ("absolute", "fixed"): continue
+        if (ck.get("float") or "none") != "none": continue
+        if ck.get("marginLeft") == "auto" or ck.get("marginRight") == "auto": bail = "auto_margin"; break
+        if (ck.get("boxSizing") or "border-box") == "content-box": bail = "content_box"; break
+        if pf(ck.get("flexGrow")) > 0: bail = "grow"; break
+        basis = ck.get("flexBasis") or "auto"
+        if basis != "auto" and not basis.endswith("px"): bail = "basis_pct"; break
+        info.append((k, pf(ck.get("flexShrink")), pf(basis) if basis.endswith("px") else None,
+                     pf(ck.get("minWidth")) if (ck.get("minWidth") or "").endswith("px") else 0,
+                     pf(ck.get("maxWidth")) if (ck.get("maxWidth") or "").endswith("px") else float("inf")))
+    if bail: reasons[bail] += 1; continue
+    if not info: continue
+    used = {}; margin = {}; cw = {}; gap = {}
+    for vp in VPS:
+        pcs = CS(i, vp); pb = BB(i, vp)
+        cw[vp] = pb.get("width", 0) - pf(pcs.get("paddingLeft")) - pf(pcs.get("paddingRight"))
+        gap[vp] = pf(pcs.get("columnGap") if pcs.get("columnGap") not in (None, "normal") else pcs.get("gap"))
+        u = []; m = []
+        for (k, sh, bp, mn, mx) in info:
+            ck = CS(k, vp); hidden = (not VIS(k, vp)) or ck.get("display") == "none"
+            u.append(None if hidden else BB(k, vp).get("width", 0)); m.append(0 if hidden else pf(ck.get("marginLeft")) + pf(ck.get("marginRight")))
+        used[vp] = u; margin[vp] = m
+    def slack(vp):
+        vis = [j for j in range(len(info)) if used[vp][j] is not None]
+        return cw[vp] - sum(used[vp][j] for j in vis) - (gap[vp] * max(0, len(vis) - 1) + sum(margin[vp][j] for j in vis))
+    bases = []; ok = True
+    for j, (k, sh, bp, mn, mx) in enumerate(info):
+        if bp is not None: bases.append(bp); continue
+        base = None
+        for v in range(len(VPS) - 1, -1, -1):
+            vp = VPS[v]
+            if used[vp][j] is None: continue
+            if slack(vp) >= -0.5: base = used[vp][j]; break
+        if base is None: ok = False; break
+        bases.append(base)
+    if not ok: reasons["no_base"] += 1; continue
+    bad = False
+    for vp in VPS:
+        vis = [j for j in range(len(info)) if used[vp][j] is not None]
+        if not vis: continue
+        hyp = [min(max(bases[j], info[j][3]), info[j][4]) for j in vis]
+        gaps = gap[vp] * max(0, len(vis) - 1) + sum(margin[vp][j] for j in vis)
+        free = cw[vp] - sum(hyp) - gaps
+        sim = list(hyp)
+        if free < -0.5:
+            ts = sum(info[vis[k]][1] * hyp[k] for k in range(len(vis)))
+            if ts > 0:
+                for k in range(len(vis)): sim[k] = max(hyp[k] - abs(free) * (info[vis[k]][1] * hyp[k]) / ts, info[vis[k]][3])
+        for k in range(len(vis)):
+            if abs(sim[k] - used[vp][vis[k]]) > 1: bad = True
+    if bad: reasons["sim_mismatch"] += 1; continue
+    varies = [j for j in range(len(info)) if len([used[vp][j] for vp in VPS if used[vp][j] is not None]) >= 2 and max(x for vp in VPS if (x:=used[vp][j]) is not None) - min(x for vp in VPS if (x:=used[vp][j]) is not None) > 8]
+    if not varies: reasons["no_variation"] += 1; continue
+    succ += 1; succ_items += len(info)
+    # estimate band variants removed: for each varying item, count distinct band-vp widths != base-vp
+    for j in varies:
+        bandw = set(round(used[vp][j]) for vp in BAND_VPS if used[vp][j] is not None)
+        bands_removed += max(0, len(bandw) - 1)
+print(f"SUCCESS lines: {succ}  items: {succ_items}  est. width-band variants removed: ~{bands_removed}")
+for k, v in reasons.most_common(): print(f"  bail {k:16} {v}")