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Combined memo (justified merge). The image = purest 'live' end; hardens the image-is-not-a-store boundary (export->files only), generalizing 'attach files not the kernel/image'. Pharo Tonel/Iceberg confirms even image traditions externalize to git text. Names the live<->snapshot projection axis (T16). Boundary/enrichment-only, no new UC. Marks T6+T8 done. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
34 lines
1.6 KiB
Markdown
34 lines
1.6 KiB
Markdown
# 260614 — Squeak & Pharo (image-based Smalltalk) deep dive
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Date: 2026-06-14 · Source: **SHARD-WP-0004 T6 (Squeak) + T8 (Pharo)** — combined memo
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(justified merge: both are image-based Smalltalks; Pharo is T8's thin "context for T6/T7").
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## What this is
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A deep dive into the **image-based live-object** environment — Squeak and Pharo (the
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substrate Glamorous Toolkit T7 runs on): the **image** as a persistent world of live objects
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with **no file/document/app boundary**, the live **inspector**, and Pharo's retreat to
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**code-as-text in git** (Tonel/Iceberg).
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## Why it matters
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- The **purest "live" end** of the batch's spectrum (literate source → notebook snapshot →
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GT/Lepiter live-over-files → **image: everything live**). Names the **live↔snapshot** axis
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the projection model (T16) must carry.
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- Hardens the **image-is-not-a-store** boundary (opaque monolithic non-diffable blob; no
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page identity/history/provenance) — generalizes "attach files, not the kernel/image"
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(UC-84, T7) into a named binding boundary (T14).
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- Pharo **confirms** the resolution: even image traditions externalize to **git-versionable
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text** (Tonel) to version/collaborate — files-canonical from the Smalltalk side.
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## Yield
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- **No new UC** (boundary / design prior art; covers T6 and T8). Boundary for UC-34/35/79;
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links UC-83/84 (live→snapshot), UC-54/47/48 (live-object inspection), UC-76/79 (Tonel/git).
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## Contents
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| Path | Role |
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|------|------|
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| `findings.md` | The image & live objects, the image-as-store anti-pattern, Pharo Tonel/Iceberg→git, INTENT mapping, UC disposition (enrichment-only), architecture notes (T14 boundary, T16 live↔snapshot axis) |
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