- Recursive file watching: catches imported file changes from registry/
- Auto-detect project root: walks up to find registry/ or examples/ dir
- Auto-open browser on startup (xdg-open/open/cmd)
- Verified HMR live reload: 0ms recompile on file save
- AST: When(cond, body) -> When(cond, body, Option<else_body>)
- Parser: optional 'else -> expr' after when body
- Codegen: reactive DOM swap with anchor comments
- Signal graph + type checker updated for 3-arg When
- Component prop signal wrapping: .value compatible accessors
- Added examples/when-else-demo.ds
Codegen: BinOp::Div now emits Math.trunc(l / r)
- Clock displays 0:1:30 instead of 0.016:1.5:30
- Affects both emit_expr and predicate_to_js
Lexer: removed duplicate 'in' keyword mapping
- InKw at line 312 is canonical, removed old In at line 338
Examples: added project-tracker.ds (each loops + cards)
Add 'output: field1, field2' syntax to stream declarations to control
which signals are exposed over the relay. Only listed signals are
registered in _signalRegistry (and thus streamed). Omitting output
streams all signals (backwards-compatible).
Also strips internal sync metadata (_pid, _v) from receiver state
so composition consumers only see clean signal values.
Parser: parse comma-separated idents after 'output:' key
AST: Vec<String> output field on StreamDecl
Codegen: conditional _registerSignal, delete _pid/_v on receive
Example: stream counter on 'ws://...' { mode: signal, output: count, doubled }
- Register derived signals in _signalRegistry so _streamSync includes them
- Auto-sync all signals (source + derived) after flush() recomputes effects
- Fix Object.assign identity check: create new object so signal setter detects changes
- Change _connectStream receiver path from /signal/main to /stream/default
- Initialize stream state with {} instead of null to prevent crashes
- Emit StreamFrom bindings directly without double-wrapping in signal()
Verified: static build shows Count: 9, Doubled: 18 on composition page.
HMR interference with WebSocket connections is a separate issue.
- _signalVersions: monotonic counter per signal, incremented on each local mutation
- Diffs include _v: {name: version} for version comparison
- _applyRemoteDiff only applies if remote version >= local version
- Prevents stale overwrites when both devices edit simultaneously
- onopen snapshot includes version map for late-joiner consistency
- bind: input handler now emits _streamDiff so typed text syncs
- Peers broadcast full state snapshot on WS open (late joiners sync)
- Removed dead _handleRemoteInput 0x31 case (old source/receiver model)
- Preserved scroll (0x50), pointer, and key handlers
- Added /peer/{name} route to relay: all clients are equal peers
- handle_peer: binary broadcast to all other peers, catchup for late joiners
- Simplified runtime: single /peer/ WS replaces dual source+receiver
- _peerId: random 8-char ID prevents self-echo from broadcast
- _pid in each diff JSON, filtered in _applyRemoteDiff
- Fix URL routing: /source/default and /stream/default paths
- _streamDiff sends via both source WS and receiver WS (INPUT flag)
- Source rebroadcasts 0x31 diffs from receivers to all other receivers
- Echo loop guard prevents infinite rebroadcast
Array access: Expr::Index in AST, [expr] postfix parsing, codegen for
reads (grid.value[i.value]) and writes (event handler assignments with
root signal extraction for stream diff broadcasting).
Timer: 'every N -> expr' declaration. Every keyword in lexer. EveryDecl
in AST. parse_every_decl in parser. setInterval codegen with DS.flush.
String interpolation: already committed separately.
Type checker: handles Expr::Index (infers array element type).
110 tests, 0 failures.
- Add scene container to AST, lexer, parser, analyzer, and codegen
- Add circle/rect/line as UI elements for physics body declaration
- Compile scene {} to canvas + async WASM init + Rapier2D PhysicsWorld
- Reactive gravity via DS.effect() — bodies wake on gravity change
- Mouse drag interaction with impulse-based body movement
- Compile-time hex color parsing for body colors
- Fix is_signal_ref matching numeric literals (700.value bug)
- Fix body variable uniqueness (next_node_id per body)
- Fix gravity signal detection (check AST Ident before emit_expr)
- Add physics.ds example with 5 bodies + 4 gravity control buttons
- Update DREAMSTACK.md and IMPLEMENTATION_PLAN.md with Phase 10-11
- 39 tests pass across all crates, 22KB output
Phase 6 features:
- ForIn reactive list rendering: for item in items -> body
- Optional index binding: for item, idx in items -> body
- Component declarations: component Name(props) = body
- Component instantiation: ComponentUse { name, props }
Added across 5 crates:
- ds-parser: For/In/Component tokens, ForIn/ComponentDecl AST nodes
- ds-codegen: reactive list effect, component function emission
- ds-types: ForIn/ComponentUse type inference
- local_vars tracking for non-reactive for-in loop vars
Includes examples/list.ds showcasing for-in + when + signals.
- File watcher thread using notify crate (100ms debounce)
- Auto-recompiles .ds files on change with timed output
- Poll-based HMR: client fetches /__hmr every 500ms for version
- Injects HMR script into compiled HTML before </body>
- Error pages rendered with DreamStack styling on compile failure
- Version counter shared between watcher and HTTP server via AtomicU64
