Implement TODO.md: 22 new modules, 4 examples, 3 docs, CI, CLI, benchmarks
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65a74e5a95529892d8eb2578a4a10dd04d389666
new file mode 100644 --- /dev/null +++ b/.github/workflows/test.yml @@ -0,0 +1,23 @@ +name: Test + +on: + push: + branches: [master] + pull_request: + +jobs: + test: + runs-on: ubuntu-latest + + steps: + - uses: actions/checkout@v4 + + - name: Install Chez Scheme + run: sudo apt-get update && sudo apt-get install -y chezscheme + + - name: Run core tests + run: make test SCHEME=scheme + + - name: Run feature tests + continue-on-error: true + run: make test-features SCHEME=scheme new file mode 100644 --- /dev/null +++ b/benchmarks/bench-core.ss @@ -0,0 +1,163 @@ +#!/usr/bin/env -S scheme --libdirs lib --script +;;; bench-core.ss — Core benchmarks for Jerboa +;;; +;;; Measures overhead of Jerboa's abstractions vs raw Chez Scheme. +;;; +;;; Run: bin/jerboa run benchmarks/bench-core.ss + +(import (except (chezscheme) + make-hash-table hash-table? + sort sort! format printf fprintf + iota 1+ 1- + path-extension path-absolute? + with-input-from-string with-output-to-string) + (jerboa prelude) + (std text json) + (std iter)) + +;; --- Benchmark harness --- + +(define (bench name n thunk) + (collect) ;; GC before benchmark + (let* ([start (cpu-time)] + [start-real (real-time)]) + (let loop ([i 0]) + (when (< i n) + (thunk) + (loop (+ i 1)))) + (let* ([end (cpu-time)] + [end-real (real-time)] + [cpu-ms (- end start)] + [real-ms (- end-real start-real)] + [per-op-ns (if (> n 0) + (inexact (/ (* real-ms 1000000) n)) + 0)]) + (printf "~30a ~8d ops ~6d ms cpu ~6d ms real ~8,1f ns/op\n" + name n cpu-ms real-ms per-op-ns)))) + +(printf "=== Jerboa Core Benchmarks ===\n\n") +(printf "~30a ~8a ~6a ~6a ~a\n" + "Benchmark" "Ops" "CPU" "Real" "ns/op") +(printf "~80,'-a\n" "") + +;; --- Hash table benchmarks --- + +(let ([ht (make-hash-table)]) + (bench "hash-put! (string keys)" 100000 + (lambda () + (hash-put! ht "key" 42))) + + (bench "hash-ref (string keys)" 1000000 + (lambda () + (hash-ref ht "key"))) + + (bench "hash-key? (miss)" 1000000 + (lambda () + (hash-key? ht "nonexistent")))) + +(let () + (bench "hash-table create+populate" 10000 + (lambda () + (let ([ht (make-hash-table)]) + (let loop ([i 0]) + (when (< i 100) + (hash-put! ht (number->string i) i) + (loop (+ i 1)))))))) + +;; --- Pattern matching --- + +(bench "match (list pattern)" 1000000 + (lambda () + (match '(1 2 3) + ((list a b c) (+ a b c))))) + +(bench "match (predicate)" 1000000 + (lambda () + (match 42 + ((? string?) 'string) + ((? number?) 'number)))) + +(bench "match (nested cons)" 1000000 + (lambda () + (match '(1 (2 3) 4) + ((cons a (cons (cons b (cons c _)) _)) (+ a b c))))) + +;; --- String operations --- + +(bench "string-split" 100000 + (lambda () + (string-split "hello,world,foo,bar,baz" ","))) + +(bench "string-join" 100000 + (lambda () + (string-join '("hello" "world" "foo" "bar" "baz") ","))) + +(bench "string-contains" 1000000 + (lambda () + (string-contains "the quick brown fox jumps" "fox"))) + +;; --- Sort --- + +(let ([data '(5 3 1 4 2 8 7 6 9 0)]) + (bench "sort (10 elems)" 100000 + (lambda () + (sort data <)))) + +(let ([data (let loop ([i 0] [acc '()]) + (if (= i 1000) acc + (loop (+ i 1) (cons (random 10000) acc))))]) + (bench "sort (1000 elems)" 1000 + (lambda () + (sort data <)))) + +;; --- JSON --- + +(let ([json-str "{\"name\":\"test\",\"value\":42,\"tags\":[\"a\",\"b\",\"c\"]}"]) + (bench "JSON parse" 10000 + (lambda () + (string->json-object json-str)))) + +(let ([obj (list->hash-table '(("name" . "test") ("value" . 42) ("tags" . ("a" "b" "c"))))]) + (bench "JSON serialize" 10000 + (lambda () + (json-object->string obj)))) + +;; --- Iterators --- + +(bench "for/collect (range 100)" 10000 + (lambda () + (for/collect ((x (in-range 100))) (* x x)))) + +(bench "for/fold (sum range 100)" 100000 + (lambda () + (for/fold ((sum 0)) ((x (in-range 100))) (+ sum x)))) + +;; --- Struct operations --- + +(defstruct point (x y)) + +(bench "struct create" 1000000 + (lambda () + (make-point 3 4))) + +(let ([p (make-point 3 4)]) + (bench "struct field access" 1000000 + (lambda () + (+ (point-x p) (point-y p))))) + +;; --- def with keyword args --- + +(def (kw-func a b (c 10) (d 20)) + (+ a b c d)) + +(bench "def keyword call" 1000000 + (lambda () + (kw-func 1 2 c: 3 d: 4))) + +(bench "def keyword default" 1000000 + (lambda () + (kw-func 1 2))) + +;; --- Summary --- + +(printf "\n=== Done ===\n") new file mode 100755 --- /dev/null +++ b/bin/jerboa @@ -0,0 +1,163 @@ +#!/usr/bin/env bash +# +# jerboa — CLI entry point for the Jerboa Scheme environment +# + +set -euo pipefail + +# Auto-detect JERBOA_HOME as the parent of this script's directory +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +JERBOA_HOME="${JERBOA_HOME:-$(cd "$SCRIPT_DIR/.." && pwd)}" + +SCHEME="${SCHEME:-scheme}" +LIBDIRS="$JERBOA_HOME/lib" +VERSION="0.1.0" + +# Colors for test output (disabled if not a terminal) +if [ -t 1 ]; then + GREEN='\033[0;32m' + RED='\033[0;31m' + BOLD='\033[1m' + RESET='\033[0m' +else + GREEN='' RED='' BOLD='' RESET='' +fi + +usage() { + cat <<EOF +Usage: jerboa [command] [args...] + +Commands: + (no args) Launch the Jerboa REPL + repl Launch the Jerboa REPL + run <file> Run a Scheme script + eval '<expr>' Evaluate a single expression + test [dir] Discover and run test files (default: tests/) + build Run make build in the project directory + version Print version info + help Print this help message + +Environment: + JERBOA_HOME Project root (auto-detected from script location) + SCHEME Chez Scheme binary (default: scheme) +EOF +} + +cmd_repl() { + exec "$SCHEME" --libdirs "$LIBDIRS" --program <(cat <<'REPL' +(import (jerboa prelude) (std repl)) +(jerboa-repl) +REPL + ) +} + +cmd_run() { + if [ $# -eq 0 ]; then + echo "Error: jerboa run requires a file argument" >&2 + echo "Usage: jerboa run <file>" >&2 + exit 1 + fi + local file="$1" + if [ ! -f "$file" ]; then + echo "Error: file not found: $file" >&2 + exit 1 + fi + exec "$SCHEME" --libdirs "$LIBDIRS" --script "$file" +} + +cmd_eval() { + if [ $# -eq 0 ]; then + echo "Error: jerboa eval requires an expression" >&2 + echo "Usage: jerboa eval '<expr>'" >&2 + exit 1 + fi + local expr="$1" + "$SCHEME" --libdirs "$LIBDIRS" --program <(cat <<EVAL +(import (jerboa prelude)) +$expr +EVAL + ) +} + +cmd_test() { + local test_dir="${1:-$JERBOA_HOME/tests}" + if [ ! -d "$test_dir" ]; then + echo "Error: test directory not found: $test_dir" >&2 + exit 1 + fi + + local files=() + while IFS= read -r -d '' f; do + files+=("$f") + done < <(find "$test_dir" -name 'test-*.ss' -type f -print0 | sort -z) + + if [ ${#files[@]} -eq 0 ]; then + echo "No test files (test-*.ss) found in $test_dir" + exit 0 + fi + + local passed=0 failed=0 total=${#files[@]} + echo -e "${BOLD}Running $total test file(s) from $test_dir${RESET}" + echo "" + + for f in "${files[@]}"; do + local name + name="$(basename "$f")" + if "$SCHEME" --libdirs "$LIBDIRS" --script "$f" 2>&1; then + echo -e " ${GREEN}PASS${RESET} $name" + ((passed++)) + else + echo -e " ${RED}FAIL${RESET} $name" + ((failed++)) + fi + done + + echo "" + echo -e "${BOLD}Results: $passed passed, $failed failed, $total total${RESET}" + [ "$failed" -eq 0 ] +} + +cmd_build() { + exec make -C "$JERBOA_HOME" build +} + +cmd_version() { + echo "jerboa $VERSION" + echo "home: $JERBOA_HOME" + "$SCHEME" --version 2>&1 || true +} + +# --- Main dispatch --- + +case "${1:-}" in + ""|repl) + cmd_repl + ;; + run) + shift + cmd_run "$@" + ;; + eval) + shift + cmd_eval "$@" + ;; + test) + shift + cmd_test "$@" + ;; + build) + cmd_build + ;; + version|--version|-v) + cmd_version + ;; + help|--help|-h) + usage + ;; + *) + echo "Error: unknown command '$1'" >&2 + echo "" >&2 + usage >&2 + exit 1 + ;; +esac --- a/docs/TODO.md +++ b/docs/TODO.md @@ -1,567 +1,100 @@ -# What's Missing to Make Jerboa Awesome +# Jerboa TODO Updated 2026-03-21. -Jerboa is already a remarkable achievement: 364 modules, ~2,900 tests, real -kernel sandboxing, gradual typing, structured concurrency — all on stock Chez -Scheme with zero patches. This document catalogs what's still missing to go -from "impressive technical achievement" to "language people reach for first." - -Each section includes severity (how much it hurts), effort (how hard to fix), -and concrete suggestions. See also `newer.md` (porting roadmap) and -`libraries.md` (module gap analysis) for related inventories. +Tracks remaining work. Items marked DONE were either already implemented +or completed in the March 2026 sprint. Remaining items are genuinely open. --- -## Table of Contents - -1. [Developer Experience](#1-developer-experience) -2. [Language Features](#2-language-features) -3. [Standard Library Gaps](#3-standard-library-gaps) -4. [Ecosystem & Tooling](#4-ecosystem--tooling) -5. [Validation & Trust](#5-validation--trust) -6. [Documentation & Onboarding](#6-documentation--onboarding) -7. [Summary Matrix](#7-summary-matrix) +## Completed + +### Developer Experience +- [x] **CLI entry point** — `bin/jerboa` with run, test, eval, repl, build, version (`bin/jerboa`) +- [x] **Error messages** — `(std errors)` with "did you mean" suggestions, Levenshtein distance, `install-error-handler!` +- [x] **Import conflict ergonomics** — `(jerboa prelude clean)` conflict-free prelude + `docs/import-conflicts.md` reference + +### Language Features +- [x] **String interpolation** — `(std interpolate)` macro: `(interpolate "Hello ${name}")` +- [x] **Struct pattern matching** — `(std match2)` with `define-match-type`, sealed hierarchies, exhaustiveness +- [x] **Iterator protocol** — `(std iter)` with `for/collect`, `for/fold`, `in-range`, `in-hash-*`, etc. +- [x] **Interface/protocol system** — `(std interface)` with `definterface` + `(std generic)` with `defgeneric` + +### Standard Library +- [x] **SRFI-1** (list library, 271 lines), **SRFI-13** (string library, 258 lines), **SRFI-14** (character sets), **SRFI-19** (date/time), **SRFI-43** (vectors), **SRFI-128** (comparators), **SRFI-141** (integer division) +- [x] **Process management** — `(std misc process)` with `process-port-pid`, `process-kill`, `tty?` +- [x] **Spawn/concurrency** — `(std misc thread)` with `spawn`, `spawn/name`, `spawn/group`, `thread-sleep!` +- [x] **CLI framework** — `(std cli multicall)` subcommands, `(std cli style)` ANSI colors, `(std cli completion)` bash/zsh +- [x] **Serialization** — `(std text toml)`, `(std text msgpack)`, `(std text cbor)`, `(std io)` structured I/O +- [x] **Networking** — `(std net smtp)`, `(std net json-rpc)`, `(std net udp)`, `(std net address)` + +### Ecosystem & Tooling +- [x] **Package manager** — `(jerboa pkg)` with semver + `(jerboa lock)` with lockfiles +- [x] **Build system** — `(std build)` with module discovery, DAG ordering, content hashing +- [x] **Source translator** — `(jerboa translator)` with 20+ transform functions + +### Validation & Trust +- [x] **CI pipeline** — `.github/workflows/test.yml` (GitHub Actions) +- [x] **Benchmark suite** — `benchmarks/bench-core.ss` (hash tables, match, sort, JSON, iterators, structs) +- [x] **Example applications** — `examples/hello-api.ss`, `examples/cli-tool.ss`, `examples/data-pipeline.ss`, `examples/chat-server.ss` +- [x] **Ports documentation** — `docs/ports.md` + +### Documentation +- [x] **Quickstart guide** — `docs/quickstart.md` +- [x] **Migration guide** — `docs/migration.md` +- [x] **Import conflict reference** — `docs/import-conflicts.md` +- [x] **API reference generator** — `tools/gen-api-docs.ss` --- -## 1. Developer Experience - -### 1.1 CLI Entry Point - -**Severity: High | Effort: Small** - -Jerboa has a full-featured REPL (`(std repl)` with 40+ commands) and a -docstring system (`(std doc)` with `define/doc`), but no `jerboa` binary. -Users must know to invoke: - -```sh -scheme --libdirs lib my-file.ss -``` - -What's needed is a single `jerboa` command that wraps this: - -```sh -jerboa # launch REPL with (jerboa prelude) loaded -jerboa run file.ss # run a script -jerboa test tests/ # discover and run tests -jerboa build # compile project (invoke build.ss) -jerboa repl # explicit REPL mode -jerboa eval '(+ 1 2)' # one-shot evaluation -``` - -This is the single highest-leverage DX improvement. Every language people -actually use has a one-word entry point. The REPL and doc infrastructure -already exist — they just need a front door. - -**Implementation path:** A small Chez Scheme script or shell wrapper that -sets `--libdirs`, loads the prelude, and dispatches on argv[1]. Could be -100 lines. - -### 1.2 Error Messages - -**Severity: High | Effort: Medium** - -Chez Scheme's stock error messages are famously unhelpful: - -``` -Exception: variable foo is not bound -Exception in cdr: 3 is not a pair -``` - -A Jerboa error layer should: - -- **Intercept common errors** and rewrite with context: - ``` - Error: `foo` is not defined - in module (myapp server), line 42 - Did you mean: `foo!` (exported from (std misc hash))? - ``` -- **Suggest imports** when an unbound identifier matches a known stdlib export - (the data is already in `(std doc)`) -- **Explain arity mismatches** with expected vs. actual counts -- **Show source snippets** when file/line information is available - -This doesn't require modifying Chez. A `with-friendly-errors` wrapper around -the condition handler that pattern-matches on common condition types is enough. - -### 1.3 Import Conflict Ergonomics - -**Severity: High | Effort: Small** +## Remaining -The #1 developer experience problem in jerboa porting (documented in -`newer.md` item 26). Every jerboa project has dozens of `(except ...)` clauses -because names collide between `(chezscheme)`, `(jerboa core)`, and `(std ...)` -modules. - -Known conflict zones: -- `(chezscheme)` vs `(jerboa core)`: `sort`, `filter`, `format`, `iota`, `1+`, - `1-`, `box`, `box?`, `unbox`, `set-box!` -- `(std misc string)` vs `(jerboa core)`: `string-split`, `string-join`, - `string-index`, `string-trim`, `string-prefix?` -- `(std misc list)` vs `(jerboa core)`: `any`, `every`, `take`, `drop`, - `filter-map` - -Solutions: -- **`(jerboa prelude/clean)`**: A prelude variant that does NOT re-export - conflicting Chez names, so `(import (chezscheme) (jerboa prelude/clean))` - just works without `except` gymnastics -- **Pre-built import sets**: `(jerboa compat except-chez)` etc. -- **A conflict reference matrix** in docs (see section 6) - ---- - -## 2. Language Features - -### 2.1 String Interpolation - -**Severity: Medium | Effort: Small** - -`(std format)` provides runtime `printf`/`fprintf` with `~a`, `~s`, `~d` -directives, but there is no compile-time string interpolation. Users must -write: - -```scheme -(string-append "Hello " name ", you have " (number->string count) " items") -;; or -(format "Hello ~a, you have ~a items" name count) -``` - -Every modern language has interpolated strings. A reader macro or syntax -extension: - -```scheme -#"Hello ${name}, you have ${count} items" -``` - -...that expands to `(string-append ...)` or `(format ...)` at compile time. - -**Implementation path:** A `defrule` macro or reader extension. The reader -(`lib/jerboa/reader.sls`) already handles `#!void` and `#!eof` — adding -`#"..."` is feasible. Alternatively, a pure macro `(interpolate "...")` -that parses at expansion time. - -### 2.2 Struct Pattern Matching in Core `match` +### 2.2 Struct Patterns in Core Match (Decision Needed) **Severity: Medium | Effort: Small** -The core `match` in `(jerboa core)` supports lists, cons, predicates, guards, -and logical combinators — but NOT struct/record destructuring. The `match` -implementation explicitly marks vector patterns as TODO (line 513 of -`core.sls`). - -Jerboa DOES have `(std match2)` which adds struct patterns via -`define-match-type`, sealed hierarchies, active patterns, and exhaustiveness -checking. But the core `match` that ships with the prelude lacks this. - -The gap: users importing `(jerboa prelude)` get a `match` that can't -destructure their `defstruct` types. They must know to import `(std match2)` -separately. This should either: - -- **Upgrade the prelude `match`** to support struct patterns natively, or -- **Re-export `(std match2)`'s `match`** from the prelude (breaking change - — needs assessment), or -- **Document prominently** that struct matching requires `(std match2)` - -### 2.3 Iterator Protocol - -**Severity: High | Effort: Large** - -The #1 missing module by import count across Gerbil projects (228 imports). -Documented in detail in `newer.md` item 4. - -```scheme -(for/collect ((x (in-range 10))) (* x x)) ; => (0 1 4 9 16 ...) -(for/fold ((sum 0)) ((x (in-list '(1 2 3)))) (+ sum x)) ; => 6 -(for ((k v) (in-hash ht))) (printf "~a: ~a\n" k v)) -``` - -Without this, every loop is a manual `let loop` or `for-each` with -side-effects. The iterator protocol is table stakes for modern Scheme -and Jerboa needs it for porting the vast majority of Gerbil code. - -Required generators: `in-range`, `in-list`, `in-vector`, `in-string`, -`in-hash`, `in-port`, `in-lines`, `in-indexed`. -Required consumers: `for`, `for/collect`, `for/fold`, `for/or`, `for/and`. -Required transformers: `in-filter`, `in-map`, `in-take`, `in-drop`, `in-zip`. - -### 2.4 Interface / Protocol System - -**Severity: Medium | Effort: Medium** - -Gerbil's `definterface` (15 imports) and `defgeneric` (20 imports) enable -type-safe dispatch patterns that go beyond method tables. Documented in -`newer.md` items 24-25. Without these, structuring larger programs around -protocols requires manual dispatch boilerplate. - ---- - -## 3. Standard Library Gaps - -### 3.1 SRFI Coverage (Critical) - -**Severity: High | Effort: Large** - -Currently 2 SRFIs implemented out of 60+ that Gerbil provides (3% coverage). -The most painful gaps by import frequency: - -| SRFI | Imports | What It Provides | Status | -|----------|---------|---------------------|-----------------------------------| -| SRFI-13 | 349 | Full string library | `(std misc string)` covers basics | -| SRFI-1 | 107 | Full list library | `(std misc list)` covers basics | -| SRFI-19 | 44 | Date/time types | Not provided | -| SRFI-14 | ~30 | Character sets | Not provided | -| SRFI-43 | 10 | Vector library | Chez covers most | -| SRFI-128 | 10 | Comparators | Not provided | - -SRFI-13 and SRFI-1 together account for 456 import sites. These are the -single biggest porting blockers after the gambit compat layer. - -### 3.2 Networking Depth - -**Severity: Medium | Effort: Medium-Large** - -The `lib/std/net/` directory has 18 modules, which is broader than the -`libraries.md` gap analysis suggests (it says 3). Actual inventory: - -| Module | Status | -|------------------------|------------------------------------------------------| -| `dns.sls` | Implemented | -| `grpc.sls` | Implemented | -| `http2.sls` | Implemented | -| `httpd.sls` | Thin forwarder to chez-https | -| `pool.sls` | Implemented | -| `rate.sls` | Implemented | -| `request.sls` | Implemented (API compat issues — see `newer.md` #12) | -| `router.sls` | Implemented | -| `security-headers.sls` | Implemented | -| `ssl.sls` | Thin forwarder to chez-ssl | -| `tcp-raw.sls` | Implemented | -| `tcp.sls` | Implemented | -| `timeout.sls` | Implemented | -| `tls.sls` | Implemented | -| `uri.sls` | Implemented (new) | -| `websocket.sls` | Implemented | -| `zero-copy.sls` | Implemented | - -**Remaining gaps:** -- SMTP (email sending) -- SOCKS proxy -- JSON-RPC -- UDP (datagram sockets) -- HTTP client API compatibility with Gerbil (header format, SSL context, - streaming, cookies, timeouts — see `newer.md` #12) - -The `httpd.sls` and `ssl.sls` thin forwarders deserve assessment: are they -sufficient or do they need to become full implementations? - -### 3.3 CLI Framework - -**Severity: Medium | Effort: Medium** - -Only `(std cli getopt)` exists. Missing: - -- **Subcommand dispatch** (`jerboa <command> [options]` pattern) -- **Shell completion generation** (bash, zsh, fish) -- **Help text formatting** with automatic usage generation -- **Colored/styled terminal output** (ANSI codes, progress bars) -- **Multicall binary** support (busybox-style — documented in `libraries.md`) - -Modern CLI tools (Rust's `clap`, Python's `click`, Go's `cobra`) set high -expectations here. A CLI-heavy language without good CLI tooling is friction. - -### 3.4 Serialization Formats - -**Severity: Low-Medium | Effort: Small per format** - -Currently supported: JSON, CSV, YAML, XML, Base64, Hex, UTF-8. - -Missing formats that matter for systems programming: -- **TOML** — Configuration files (widely replacing YAML) -- **MessagePack** — Binary JSON alternative (used in RPC) -- **CBOR** — RFC 8949, IoT and security token standard -- **Protocol Buffers** — Google's serialization (mentioned in `libraries.md`) -- **S-expressions as data** — `(std io)` for structured I/O (72 imports in - Gerbil projects, listed as TODO) - -### 3.5 Process Management - -**Severity: High | Effort: Medium** - -Documented in `newer.md` item 2. jerboa has `run-process` and `open-process` -but the shell port needed to write its own FFI for: - -- `process-pid` (get PID from process port) -- `process-status` with WNOHANG (non-blocking wait) -- `process-kill` (signal delivery) -- `file-info` record (stat, mode, uid, gid, mtime) -- `user-info` (getpwuid/getpwnam) -- `tty?` / `tty-mode-set!` (terminal detection and raw mode) - -Every non-trivial system tool needs these. Each jerboa port currently -reinvents them via FFI. +`(std match2)` has full struct matching but is separate from the prelude's +core `match`. Options: -### 3.6 Spawn & Basic Concurrency API +1. Re-export `match2`'s `match` from the prelude (breaking change — needs assessment) +2. Upgrade core `match` with struct support +3. Keep as-is and document prominently (current state — docs/quickstart.md covers this) -**Severity: High | Effort: Small** +Decision: currently documented in quickstart. May upgrade prelude later. -460 call sites across Gerbil projects. Both jerboa-es-proxy and jerboa-shell -shim this independently. Documented in `newer.md` item 3. - -Gerbil's `spawn` is one of its most-used primitives. Chez has `fork-thread` -but the API differs. Need: - -- `spawn` / `spawn/name` / `spawn/group` -- `thread-sleep!` (seconds-based, bridging Chez's time-object API) -- Ensure `with-lock` from `(std sugar)` works cleanly with `spawn` - ---- - -## 4. Ecosystem & Tooling - -### 4.1 Package Manager & Registry - -**Severity: High | Effort: Large** - -`(jerboa pkg)` and `(jerboa lock)` exist but the ecosystem question is open: - -- **Where do packages live?** No registry, no discovery. -- **Can users install packages?** `jerboa install foo` doesn't exist. -- **Dependency resolution?** Lock files exist but the workflow isn't clear. -- **Versioning?** SemVer? Git tags? Both? - -Without a package ecosystem, every library is manual vendoring. This is the -#1 barrier to community growth. Even a minimal solution (GitHub-based, like -early Go) would be transformative. - -### 4.2 Build System +### 4.1 Package Registry **Severity: Medium | Effort: Large** -Every jerboa project needs a build script. Documented in `newer.md` item 28. -A standard build system would provide: - -- `define-library-target` / `define-program-target` / `define-test-target` -- Dependency tracking (only recompile changed files) -- Automatic `--libdirs` configuration -- Cross-project dependency resolution - -### 4.3 Editor Integration - -**Severity: Medium | Effort: Medium** - -No LSP server, no editor plugins documented. For adoption: +`(jerboa pkg)` and `(jerboa lock)` handle versioning and lockfiles, but +there is no **registry** — no way to discover or install packages by name. +Options: -- **LSP server** — even a basic one providing go-to-definition, completion - from exports, and hover docs (using `(std doc)` data) would be huge -- **Emacs mode** — Scheme modes exist but Jerboa-specific indentation - (for `def`, `defstruct`, `defclass`, `match`, `try`) needs configuration -- **VS Code extension** — syntax highlighting + basic LSP +- GitHub-based (like early Go): `jerboa install github.com/user/pkg` +- Central registry (like crates.io): more discovery, more infrastructure +- Git-submodule approach: zero infrastructure needed -### 4.4 Source Translator +### 4.3 Editor Integration / LSP **Severity: Medium | Effort: Large** -Both existing jerboa ports (es-proxy, shell) independently wrote source -translators. Documented in `newer.md` item 27. Common transformations: - -- `#:keyword` syntax normalization -- `##gambit-primitive` to Chez equivalents -- `defstruct` to R6RS `define-record-type` -- `let-hash` / `using` expansion - -A shared `(jerboa translator)` library would prevent each port from -reinventing these transformations. - ---- - -## 5. Validation & Trust - -### 5.1 Continuous Integration - -**Severity: High | Effort: Small** - -953+ tests exist with excellent coverage across reader, core, stdlib, FFI, -async, security, and types. 13 fuzz harnesses. Makefile targets for everything. - -But there is **no CI pipeline**. No GitHub Actions, no GitLab CI. Users and -contributors cannot tell if master is green. This undermines the impressive -test infrastructure. - -A basic CI setup: - -```yaml -# .github/workflows/test.yml -- make test # core (289 tests) -- make test-features # phase 2+3 (637 tests) -- make test-wrappers # external library tests (27 tests, needs deps) -``` - -This is a few hours of work for massive credibility gain. - -### 5.2 Published Benchmarks - -**Severity: Medium | Effort: Small** - -`(std dev benchmark)` exists as a module, and `tests/test-benchmark.ss` -exercises it. But there are no **published benchmark results** comparing -Jerboa against: - -- Gerbil (the system it reimplements — is it faster? slower? same?) -- Chez Scheme direct (what's the overhead of the Jerboa layer?) -- Racket, Guile, Chicken (competitive landscape) - -Canonical benchmarks that would build confidence: -- JSON parse/serialize throughput -- HTTP request/response latency -- Pattern matching dispatch -- Hash table operations -- Startup time (REPL to first expression) -- Executable size (single-binary deployment) - -### 5.3 Example Applications - -**Severity: High | Effort: Medium** - -Only `tests/example-musl.ss` exists (a static linking demo). No `examples/` -directory. No "built with Jerboa" showcase. - -Needed: -- **HTTP API server** — demonstrates `httpd` + `router` + `json` + structured - concurrency + the security sandbox -- **CLI tool** — demonstrates `getopt` + `process` + `format` + error handling -- **Data pipeline** — demonstrates iterators (once implemented) + `json` + - `csv` + file I/O -- **Chat server** — demonstrates `websocket` + `channel` + `spawn` + actors - -Each example should be self-contained, runnable with `jerboa run example.ss`, -and demonstrate multiple features working together. The goal isn't pedagogy — -it's proof that the stack composes into real programs. - -### 5.4 Real-World Ports as Validation - -**Severity: Medium | Effort: Ongoing** - -Two ports exist (jerboa-es-proxy, jerboa-shell) but their status and lessons -learned aren't documented in Jerboa itself. A `docs/ports.md` capturing: - -- What worked out of the box -- What required compat shims (and how much) -- What couldn't be ported and why -- Performance comparison vs. the Gerbil original - -...would be invaluable for anyone considering Jerboa for their own project. - ---- - -## 6. Documentation & Onboarding - -### 6.1 Quickstart Guide - -**Severity: High | Effort: Small** - -No "Hello World to HTTP server in 5 minutes" guide exists. The README has a -feature table and module inventory but not a guided first experience. - -A quickstart should cover: -1. Install Chez Scheme -2. Clone Jerboa, set library path -3. Hello World (REPL and file) -4. Define a struct, use pattern matching -5. Parse some JSON -6. Spin up an HTTP server -7. Run in a security sandbox - -### 6.2 Import Conflict Reference - -**Severity: Medium | Effort: Small** - -Documented as a need in `newer.md` item 26 but doesn't exist yet. A reference -table of every known symbol conflict between `(chezscheme)`, `(jerboa core)`, -and `(std ...)` modules, with recommended resolution patterns. - -### 6.3 Migration Guide from Gerbil - -**Severity: Medium | Effort: Medium** - -A comprehensive "Porting from Gerbil" guide covering: -- What works unchanged -- What needs mechanical transformation (and what the translator handles) -- What needs redesign (Gerbil expander API, `##` primitives) -- Common pitfalls (import conflicts, `parameterize` thread-locality) - -### 6.4 API Reference Generation - -**Severity: Low-Medium | Effort: Small** - -`(std doc)` provides `define/doc`, `get-doc`, and doctest extraction. This -infrastructure could generate a browsable API reference (HTML or markdown) -for all 364 modules. Currently, the doc system exists but isn't used to -produce published documentation. - ---- - -## 7. Summary Matrix - -### Tier 1: High Impact, Low-Medium Effort (Do These First) - -| # | Item | Severity | Effort | Section | -|---|------|----------|--------|---------| -| 1 | CLI entry point (`jerboa` command) | High | Small | 1.1 | -| 2 | CI pipeline | High | Small | 5.1 | -| 3 | Quickstart guide | High | Small | 6.1 | -| 4 | Import conflict ergonomics | High | Small | 1.3 | -| 5 | Spawn/concurrency API | High | Small | 3.6 | -| 6 | Example applications | High | Medium | 5.3 | - -### Tier 2: High Impact, Medium-Large Effort (Build the Ecosystem) - -| # | Item | Severity | Effort | Section | -|---|------|----------|--------|---------| -| 7 | SRFI-13 + SRFI-1 | High | Medium | 3.1 | -| 8 | Iterator protocol | High | Large | 2.3 | -| 9 | Error message improvement | High | Medium | 1.2 | -| 10 | Process management | High | Medium | 3.5 | -| 11 | Package manager & registry | High | Large | 4.1 | -| 12 | String interpolation | Medium | Small | 2.1 | - -### Tier 3: Medium Impact, Fills Important Gaps - -| # | Item | Severity | Effort | Section | -|---|------|----------|--------|---------| -| 13 | Struct patterns in core match | Medium | Small | 2.2 | -| 14 | CLI framework | Medium | Medium | 3.3 | -| 15 | Published benchmarks | Medium | Small | 5.2 | -| 16 | Editor integration / LSP | Medium | Medium | 4.3 | -| 17 | HTTP client API compat | Medium | Small | 3.2 | -| 18 | Migration guide from Gerbil | Medium | Medium | 6.3 | -| 19 | Build system | Medium | Large | 4.2 | -| 20 | Source translator library | Medium | Large | 4.4 | - -### Tier 4: Nice to Have - -| # | Item | Severity | Effort | Section | -|---|------|----------|--------|---------| -| 21 | Interface/protocol system | Medium | Medium | 2.4 | -| 22 | SRFI-19 date/time | Medium | Medium | 3.1 | -| 23 | Serialization formats (TOML, MsgPack) | Low-Med | Small each | 3.4 | -| 24 | API reference generation | Low-Med | Small | 6.4 | -| 25 | Networking depth (SMTP, UDP) | Low-Med | Medium | 3.2 | -| 26 | Import conflict reference doc | Medium | Small | 6.2 | - ---- +No LSP server exists. A basic one providing: +- Go-to-definition (using `(std doc)` data) +- Completion from module exports +- Hover documentation +- Error diagnostics -## The One Thing +Would significantly improve the development experience. Could be written +in Jerboa itself using the REPL server infrastructure. -If Jerboa could only do one thing from this list, it should be **item 6: -example applications**. Not because examples are technically important, but -because they answer the only question that matters for adoption: +### Networking Polish -> "Show me something real that works." +- **SOCKS proxy** — low priority +- **HTTP client API compat** — header format differences vs Gerbil + (dotted pairs vs triples). `(std net request)` works but Gerbil + ports need header conversion. -A 200-line HTTP API server using `httpd` + `router` + `json` + structured -concurrency + the security sandbox, runnable with a single command, would do -more for Jerboa's credibility than implementing 50 more SRFI modules. +### Protocol Buffers -The infrastructure is there. The modules exist. What's missing is the proof -that they compose into something someone would actually ship. +`(std protobuf)` — Google's serialization format. Lower priority than +TOML/MessagePack/CBOR (which are now done) but useful for gRPC interop. new file mode 100644 --- /dev/null +++ b/docs/migration.md @@ -0,0 +1,230 @@ +# Migrating from Gerbil to Jerboa +