Sprint 3 plan and docs: adopt canonical annotation system from annotations/Memory strategy.md

- Add Sprint 3 plan (37 steps, global 39-75) with canonical memory annotations,
  test quality requirements, global step numbering, and Sprint 2 overlap notes
- Refactor all docs to use canonical annotation families (@Deallocate, @Lifetime,
  @Reclaim, @Owner, @Allocate) replacing simplified @deref 4-strategy system
- Replace @perf with canonical @Hot/@Cold, @Inline, @Pure from annotations/6 optimization
- Replace @memory-footprint, @execution-mode, @deref-explicit with canonical equivalents
- Update REQUIREMENTS_OVERVIEW, SPRINT_1_REQUIREMENTS, SPRINT_2_PLAN, SPRINT_2_VISION,
  C++ Implementation Roadmap, example files, and progress report
- Remove duplicate bonus steps 41-42, consolidate Phase 3h from 7 to 4 steps

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Bill
2026-02-07 08:11:23 -07:00
parent ab05001068
commit 6643b7c2c7
11 changed files with 550 additions and 78 deletions

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@@ -2,7 +2,7 @@
```
Function: getOrCreate
@deref(???)
@{MemoryAnnotation} // One of: @Deallocate(Explicit), @Lifetime(RAII), @Reclaim(Tracing), @Owner(Single), etc.
Parameter: cache -> Map<string, Widget>
Parameter: key -> string
Body:

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@@ -2,7 +2,7 @@
```
Function: processRecords
@deref(???) // Strategy applied here
@{MemoryAnnotation} // One of: @Deallocate(Explicit), @Lifetime(RAII), @Reclaim(Tracing), @Owner(Single), etc.
Parameter: records -> List<Record>
Body:
ForLoop:

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@@ -80,15 +80,17 @@ Calculates the "blast radius" of changes.
| `@fragility` | low/high | Load-bearing legacy code flag |
### 3. Performance & Resource ("Machinist" System)
Low-level optimization metadata.
Low-level optimization metadata. See `annotations/6 optimization and intent.md` for full details.
| Annotation | Type | Purpose |
|------------|------|---------|
| `@optimization-priority` | low/mid/high | Generator focus for SIMD/unrolling |
| `@latency-critical` | bool | Real-time execution requirement |
| `@memory-footprint` | estimate | Heap/stack allocation intent |
| `@execution-mode` | deterministic/probabilistic | Formal verification hint |
| `@deref-explicit` | bool | Every pointer touch must be accounted |
| `@Hot` / `@Cold` | hint | Profile-guided branch prediction → C++ `[[likely]]`/`[[unlikely]]` |
| `@Inline(Always\|Never\|Hint)` | mode | Function inlining control |
| `@Pure` | flag | No side effects (referential transparency) |
| `@Loop(Unroll,N)` / `@Loop(Vectorize)` / `@Loop(Fuse)` | transform | Loop transformation hints |
| `@Data(Prefetch)` / `@Data(Restrict)` | hint | Memory locality / alias analysis |
| `@Align(N)` / `@Pack` / `@ConstExpr` | layout | Hardware alignment, packing, compile-time evaluation |
| `@Policy(Perf: Critical)` | guardrail | Prioritizes zero-cost abstractions over safety wrappers |
### 4. Architectural Intent ("Paradigm" System)
Defines behavioral contracts.
@@ -139,19 +141,31 @@ Preserves language-specific features that don't map directly to other languages.
---
## Memory Dereferencing Strategies
## Memory Management Annotations
Memory management is decoupled from logic as a first-class AST field.
Memory management is decoupled from logic as a first-class AST field. The canonical annotation system (defined in `annotations/Memory strategy.md`) uses distinct annotation families, each targeting a specific memory paradigm:
| Strategy | Description | Generator Responsibility |
|----------|-------------|-------------------------|
| `@deref(imperative)` | Manual control - developer defines time/location | Whetstone Generator / Substrate |
| `@deref(streamed)` | Ownership-based - lifetime tracked at declaration (Rust-like) | Whetstone Generator |
| `@deref(batched)` | Garbage collected - background process or ref-counting | Whetstone Generator |
| `@deref(content-addressed)` | Immutable - identity by hash, location irrelevant | Whetstone Generator |
| Annotation | Paradigm | Description | Key Languages |
|---|---|---|---|
| `@Deallocate(Explicit)` | Manual (MM) | Explicit allocation/deallocation, direct `free()`/`delete` | C, C++ (manual mode), Zig |
| `@Lifetime(RAII)` | RAII | Destructor-based cleanup at scope end | C++ |
| `@Reclaim(Tracing)` | GC | Automatic runtime reclamation via tracing/mark-sweep | Python, Java, JS, Go, C#, Ruby |
| `@Reclaim(Cycle)` | GC | Cycle-detection garbage collection | PHP |
| `@Reclaim(Escape)` | GC | Escape-analysis-based heap vs stack decision | Go |
| `@Owner(Single)` | Ownership | Compile-time single-owner lifetime tracking (Rust-like) | Rust |
| `@Owner(Shared_ARC)` | ARC | Deterministic reference counting | Swift, Objective-C |
| `@Allocate(Static)` | Static | Fixed memory buffers, no dynamic allocation | Fortran |
| `@Allocate(Register)` | Register | Direct register mapping or stack spill | Assembly |
| `@Allocate(Allocator)` | Allocator | Explicit allocator parameter threading | Zig |
### The "Unfilled Node Constraint"
In `@deref(imperative)` mode, the AST requires an explicit **Dereference Time Field**. If empty, the editor flags it as a "Missing Intent" error. This makes it impossible to forget a dereference.
In `@Deallocate(Explicit)` mode, the AST requires an explicit **Deallocation Time Field**. If empty, the editor flags it as a "Missing Intent" error. This makes it impossible to forget a deallocation point.
### Lossless Projection Logic
When the transpiler encounters a memory annotation that the target language cannot express natively (see `annotations/Memory strategy.md` Section 3):
- **High-Level → Low-Level** (e.g., Python → C): `@Reclaim(Tracing)` → inject `INC_REF`/`DEC_REF` shim with `free()` on zero
- **Low-Level → High-Level** (e.g., C → Java): `@Deallocate(Explicit)` → wrap in `try-with-resources` or `Cleaner` API
- **Strict → Permissive** (e.g., Rust → Python): `@Owner(Single)` → preserve in AST metadata, no enforcement in generated code
---
@@ -238,8 +252,8 @@ Tasks can be projected in:
| Tier | Capabilities |
|------|--------------|
| Junior | Basic logic, no memory management, no high-risk annotations |
| Mid | Standard logic, `@deref(streamed)` and `@deref(batched)` |
| Senior | `@deref(imperative)`, hardware optimization, high-risk refactoring |
| Mid | Standard logic, `@Lifetime(RAII)`, `@Reclaim(Tracing)`, `@Owner(Shared_ARC)` |
| Senior | `@Deallocate(Explicit)`, `@Owner(Single)`, hardware optimization, high-risk refactoring |
---

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@@ -66,7 +66,7 @@ This generates correct Java: `SEnumOperations.isMember(SPropertyOperations.getEn
- All Literals: IntegerLiteral, FloatLiteral, StringLiteral, BooleanLiteral, NullLiteral, ListLiteral
- IndexAccess, MemberAccess
- Type nodes: ListType, SetType, MapType, TupleType, ArrayType, OptionalType, CustomType
- Annotations: DerefStrategy, OptimizationLock, LangSpecific
- Annotations: Memory strategy (initially `DerefStrategy`, canonical: `DeallocateAnnotation`/`LifetimeAnnotation`/`ReclaimAnnotation`/`OwnerAnnotation`/`AllocateAnnotation`), OptimizationLock, LangSpecific
- TargetLanguage enum (python, cpp, both)
**Status:** All TR-1 core AST nodes are defined. Annotation structures (TR-2, TR-3, TR-4) exist but may need property refinement.
@@ -101,7 +101,7 @@ This generates correct Java: `SEnumOperations.isMember(SPropertyOperations.getEn
- `IndexAccess_TextGen` — outputs `[target][[index]]`
- `MemberAccess_TextGen` — outputs `[target].[memberName]`
- All Type TextGens (List, Set, Map, Tuple, Array, Optional, Custom) — placeholders
- `DerefStrategy_TextGen` — outputs `@deref([strategy])`
- `DerefStrategy_TextGen` — outputs `@deref([strategy])` (to be updated to canonical annotation names like `@Reclaim(Tracing)`, `@Deallocate(Explicit)`, etc.)
- `OptimizationLock_TextGen` — outputs `@lock([lockedBy], [lockReason])`
- `LangSpecific_TextGen` — outputs `@lang([language]:[idiomType])`

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@@ -12,7 +12,7 @@ Enable a junior developer to write working logic in Python, a senior developer t
|----------|--------------|
| Python and C++ projections | Other languages |
| Tree-sitter parsing for ingestion | Custom parser implementation |
| Memory deref strategy annotations | Full SemAnno schema |
| Memory strategy annotations (`@Deallocate`, `@Lifetime`, `@Reclaim`, `@Owner`, `@Allocate`) | Full SemAnno schema |
| Warning system for locked nodes | Hard locks / approval workflows |
| Basic AST nodes (functions, loops, variables, expressions) | Advanced nodes (generics, macros, templates) |
| MPS projectional editor | IDE plugins (VS Code, etc.) |
@@ -84,16 +84,25 @@ Expression (abstract)
└── MemberAccess
```
### TR-2: Memory Deref Strategy Annotation
### TR-2: Memory Strategy Annotations
The canonical memory annotation system (from `annotations/Memory strategy.md`) uses distinct annotation families:
```
DerefStrategy
├── strategy: enum {imperative, streamed, batched, content_addressed}
├── derefTime: Expression? (required if imperative)
├── derefLocation: string? (required if imperative)
DeallocateAnnotation — strategy: "Explicit" (manual free/delete)
LifetimeAnnotation — strategy: "RAII" (destructor-based cleanup)
ReclaimAnnotation — strategy: "Tracing"|"Cycle"|"Escape" (GC variants)
OwnerAnnotation — strategy: "Single"|"Shared_ARC" (ownership/ARC)
AllocateAnnotation — strategy: "Static"|"Register"|"Allocator" (allocation)
Common fields:
├── deallocationTime: Expression? (required if @Deallocate(Explicit))
├── deallocationLocation: string? (required if @Deallocate(Explicit))
└── owner: AgentReference?
```
> **Note:** Sprint 1 implemented this as a single `DerefStrategy` class with a `strategy` string field. Sprint 3 refactors into the canonical types above. See `SPRINT_3_PLAN.md` Migration Notes for the mapping.
### TR-3: Optimization Lock Annotation
```
@@ -181,16 +190,16 @@ int compute(int value) {
---
## Memory Deref Strategy Examples
## Memory Strategy Examples
The following examples show the **same logical function** with different memory strategies, demonstrating how the C++ projection changes while Python remains constant.
The following examples show the **same logical function** with different memory annotations (from `annotations/Memory strategy.md`), demonstrating how the C++ projection changes while Python remains constant.
### Example 1: Processing a List of Records
#### Whetstone AST (Canonical Form)
```
Function: processRecords
@deref(???) // Strategy applied here
@{MemoryAnnotation} // Strategy applied here — one of the canonical types
Parameter: records -> List<Record>
Body:
ForLoop:
@@ -205,7 +214,7 @@ Function: processRecords
```python
def process_records(records: list[Record]) -> list[Record]:
"""
@deref: {strategy} # Annotation visible but doesn't affect code
# @Reclaim(Tracing) Annotation visible but doesn't affect Python code
"""
for record in records:
record.validate()
@@ -213,7 +222,7 @@ def process_records(records: list[Record]) -> list[Record]:
return records
```
#### C++ Projection: @deref(batched) - Garbage Collected
#### C++ Projection: @Reclaim(Tracing) - Garbage Collected
```cpp
// Memory managed by shared_ptr reference counting
#include <memory>
@@ -230,7 +239,7 @@ std::vector<std::shared_ptr<Record>> process_records(
}
```
#### C++ Projection: @deref(streamed) - Ownership-Based (Rust-like)
#### C++ Projection: @Owner(Single) - Ownership-Based (Rust-like)
```cpp
// Ownership transferred, no copies, RAII cleanup
#include <vector>
@@ -247,11 +256,11 @@ std::vector<std::unique_ptr<Record>> process_records(
}
```
#### C++ Projection: @deref(imperative) - Manual Control
#### C++ Projection: @Deallocate(Explicit) - Manual Control
```cpp
// Developer explicitly controls allocation and deallocation
// @deref-time: end_of_function
// @deref-location: caller_responsibility
// @deallocation-time: end_of_function
// @deallocation-location: caller_responsibility
#include <vector>
std::vector<Record*> process_records(
@@ -263,11 +272,11 @@ std::vector<Record*> process_records(
records[i]->transform();
}
return records;
// NOTE: No deallocation here - @deref-location specifies caller handles it
// NOTE: No deallocation here - @deallocation-location specifies caller handles it
}
```
#### C++ Projection: @deref(content-addressed) - Immutable
#### C++ Projection: @Allocate(Static) + @ConstExpr - Immutable
```cpp
// Immutable data, identity by content hash, can be freely shared
#include <vector>
@@ -303,7 +312,7 @@ std::vector<ImmutableRecord> process_records(
#### Whetstone AST (Canonical Form)
```
Function: getOrCreate
@deref(???)
@{MemoryAnnotation} // One of the canonical types
Parameter: cache -> Map<string, Widget>
Parameter: key -> string
Body:
@@ -320,7 +329,7 @@ Function: getOrCreate
```python
def get_or_create(cache: dict[str, Widget], key: str) -> Widget:
"""
@deref: {strategy}
# @Reclaim(Tracing) — Annotation visible but doesn't affect Python code
"""
if key in cache:
return cache[key]
@@ -330,7 +339,7 @@ def get_or_create(cache: dict[str, Widget], key: str) -> Widget:
return widget
```
#### C++ Projection: @deref(batched)
#### C++ Projection: @Reclaim(Tracing)
```cpp
std::shared_ptr<Widget> get_or_create(
std::unordered_map<std::string, std::shared_ptr<Widget>>& cache,
@@ -346,7 +355,7 @@ std::shared_ptr<Widget> get_or_create(
}
```
#### C++ Projection: @deref(streamed)
#### C++ Projection: @Owner(Single)
```cpp
// Note: Unique ownership makes caching tricky - must use reference
Widget& get_or_create(
@@ -365,10 +374,10 @@ Widget& get_or_create(
}
```
#### C++ Projection: @deref(imperative)
#### C++ Projection: @Deallocate(Explicit)
```cpp
// @deref-time: cache_destruction
// @deref-location: CacheManager::cleanup()
// @deallocation-time: cache_destruction
// @deallocation-location: CacheManager::cleanup()
Widget* get_or_create(
std::unordered_map<std::string, Widget*>& cache,
const std::string& key
@@ -397,7 +406,7 @@ A warning appears when a node has an `OptimizationLock` annotation and the curre
│ ⚠ OPTIMIZATION WARNING │
├─────────────────────────────────────────────────────────────┤
│ This node was optimized by: senior_dev_alice │
│ Optimization: @deref(imperative) with SIMD vectorization
│ Optimization: @Deallocate(Explicit) with SIMD vectorization │
│ │
│ Modifying this code will: │
│ • Invalidate the manual memory management strategy │
@@ -444,11 +453,11 @@ languages/
- [ ] Generate Python from AST that is functionally equivalent
- [ ] Generate C++ from AST that compiles and runs
### AC-2: Deref Strategy Application
- [ ] Apply `@deref(batched)` to a function → C++ uses shared_ptr
- [ ] Apply `@deref(streamed)` to a function → C++ uses unique_ptr
- [ ] Apply `@deref(imperative)` to a function → C++ uses raw pointers
- [ ] Python projection shows annotation but code unchanged
### AC-2: Memory Strategy Application
- [ ] Apply `@Reclaim(Tracing)` to a function → C++ uses shared_ptr
- [ ] Apply `@Owner(Single)` or `@Lifetime(RAII)` to a function → C++ uses unique_ptr
- [ ] Apply `@Deallocate(Explicit)` to a function → C++ uses raw pointers
- [ ] Python projection shows annotation as comment but code unchanged
### AC-3: Warning System
- [ ] Add optimization lock to node
@@ -492,8 +501,8 @@ Build SemAnno incrementally, testing each phase before moving forward:
3. **C++ Projection & Generator**
- Extend SemAnno.editor.mps with C++ syntax projections
- Implement C++ generator in SemAnno.textGen.mps
- Add deref strategy translation to generator
- Test: Generate valid, compilable C++ code for each deref strategy
- Add memory annotation translation to generator
- Test: Generate valid, compilable C++ code for each memory annotation type
4. **Tree-sitter Import**
- Add import behavior to SemAnno.behavior.mps
@@ -502,7 +511,7 @@ Build SemAnno incrementally, testing each phase before moving forward:
- Test: Parse Python/C++ files → populate SemAnno AST
5. **Warning System & Annotations**
- Add OptimizationLock and DerefStrategy annotations to SemAnno.structure.mps
- Add OptimizationLock and memory strategy annotations to SemAnno.structure.mps
- Implement warning logic in SemAnno.behavior.mps
- Add warning UI to SemAnno.editor.mps
- Implement provenance tracking
@@ -512,9 +521,9 @@ Build SemAnno incrementally, testing each phase before moving forward:
## Open Questions
1. **Deref inference:** Should the system suggest deref strategies based on usage patterns, or always require explicit annotation?
1. **Strategy inference:** Should the system suggest memory annotations based on usage patterns, or always require explicit annotation?
2. **Partial optimization:** Can a senior optimize just one function while leaving others with default `@deref(batched)`?
2. **Partial optimization:** Can a senior optimize just one function while leaving others with default `@Reclaim(Tracing)`?
3. **Conflict granularity:** If a junior modifies a loop inside an optimized function, does that invalidate the whole function or just the loop?

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@@ -28,9 +28,9 @@ Port the 33 SemAnno concepts from MPS XML into C++ data structures.
- **Test:** build the Calculator example as a C++ object graph
### Step 4: Annotation concepts
- Add `DerefStrategy`, `OptimizationLock`, `LangSpecific`
- Add memory strategy annotations (`DerefStrategy` as initial implementation), `OptimizationLock`, `LangSpecific`
- Attach to Module/Function/Variable via annotations link
- **Test:** build SimpleFunctionExample with @deref(batched), verify annotation reads back
- **Test:** build SimpleFunctionExample with `@Reclaim(Tracing)` (initially stored as `DerefStrategy("batched")`), verify annotation reads back
### Step 5: JSON serialization (save)
- Serialize the C++ AST graph to JSON
@@ -71,7 +71,7 @@ Python generator — port of the working MPS textGen rules into C++ visitor meth
- **Test:** ConditionalExample AST → correct Python with if/else
### Step 11: Annotation output
- DerefStrategy → `# @deref(strategy)` comment in Python
- Memory annotations → `# @Reclaim(Tracing)` / `# @Deallocate(Explicit)` / etc. comment in Python (initially emits as `# @deref(strategy)` — Sprint 3 updates to canonical names)
- OptimizationLock → `# @lock(...)` comment
- **Test:** SimpleFunctionExample with annotations → comments appear in output
@@ -236,8 +236,8 @@ The final projection and the external agent interface.
- **Test:** Calculator AST → compilable C++ with g++
### Step 35: C++ generator — memory strategies
- `@dealloc(manual)` → raw pointers, `@dealloc(gc)` → shared_ptr, `@dealloc(ownership)` → unique_ptr
- **Test:** same AST with different @dealloc values → different C++ output, all compile
- `@Deallocate(Explicit)` → raw pointers, `@Reclaim(Tracing)` → shared_ptr, `@Lifetime(RAII)` / `@Owner(Single)` → unique_ptr
- **Test:** same AST with different memory annotations → different C++ output, all compile
> **CHECKPOINT:** C++ compiles from AST. Generated C++ compiles with g++ for all 3 example models. Stop here until this passes.

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@@ -201,7 +201,7 @@ Benefits:
│ │
│ Annotations: │
│ ┌─────────────────────────────────────────────────────────┐ │
│ │ [@deref: batched ▼] [@complexity: ___] [+ Add] │ │
│ │ [@Reclaim(Tracing) ▼] [@complexity: ___] [+ Add] │ │
│ └─────────────────────────────────────────────────────────┘ │
│ │
│ [Continue to Body →] │
@@ -271,7 +271,7 @@ Benefits:
│ Function: process_data │
│ ├── params: [(items, List[int]), (threshold, int, default=10)]│
│ ├── returns: List[int] │
│ ├── @deref: batched
│ ├── @Reclaim(Tracing)
│ └── body: │
│ └── Return │
│ └── Call: list │
@@ -651,7 +651,7 @@ Sprint 1 (MPS) provides:
- Core AST node definitions
- SemAnno annotation schema
- Python ↔ C++ projection patterns
- Memory deref strategy examples
- Memory strategy annotation examples (canonical system: `@Deallocate`, `@Lifetime`, `@Reclaim`, `@Owner`, `@Allocate`)
Sprint 2 consumes Sprint 1 by:
- Porting AST definitions from MPS to C++ classes (initially)

424
docs/SPRINT_3_PLAN.md Normal file
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@@ -0,0 +1,424 @@
# Sprint 3 Plan: Whetstone Editor - Core Functionality & Classical Mode
37 steps (global steps 3975). Build one thing, test it, move on. If something breaks, the problem is in that step.
> **Step numbering:** Sprint 2 ended at Step 38. Sprint 3 steps are numbered 3975 to continue the global sequence. Phase-local references (e.g., "Phase 3a Step 1") map to global Step 39, etc.
For detailed architecture and design rationale, see:
- `REQUIREMENTS_OVERVIEW.md` — Core vision, SemAnno schema, memory strategies
- `annotations/Memory strategy.md`**Canonical memory annotation reference** (10 strategies across 20 languages)
- `annotations/6 optimization and intent.md`**Canonical optimization annotation reference** (`@Hot`/`@Cold`, `@Inline`, `@Pure`, etc.)
- `annotations/8 strategy choice and policy.md` — Policy annotations and strategy menus
- `annotations/C++ Implementation Roadmap.md` — C++ generator and memory management details
> **Note on annotation naming:** Sprint 2 used a simplified 4-strategy `@deref` system from `REQUIREMENTS_OVERVIEW.md`. Sprint 3 adopts the **canonical annotation system** defined in `annotations/Memory strategy.md`, which is the authoritative source. The canonical system uses distinct annotation families — `@Deallocate`, `@Lifetime`, `@Reclaim`, `@Owner`, `@Allocate` — each targeting a specific memory paradigm. The old `DerefStrategy` class will be refactored into these granular annotation types. See the Migration Notes at the bottom for the full mapping.
> **Test quality requirement:** All step tests MUST contain real assertions that exercise the code under test. Sprint 2 tests were placeholder stubs that print "PASS" without verifying behavior. Sprint 3 tests must `#include` the relevant headers, construct real AST objects, call real functions, and assert expected outputs. A test that just prints "PASS" is not a test.
---
## Canonical Memory Annotation Reference
From `annotations/Memory strategy.md` — these are the annotations Sprint 3 implements:
| Annotation | Paradigm | Description | Key Languages |
|---|---|---|---|
| `@Deallocate(Explicit)` | Manual (MM) | Explicit allocation/deallocation, direct `free()`/`delete` | C, C++ (manual mode), Zig |
| `@Lifetime(RAII)` | RAII | Destructor-based cleanup at scope end | C++ |
| `@Reclaim(Tracing)` | GC | Automatic runtime reclamation via tracing/mark-sweep | Python, Java, JS, Go, C#, Ruby |
| `@Reclaim(Cycle)` | GC | Cycle-detection garbage collection | PHP |
| `@Reclaim(Escape)` | GC | Escape-analysis-based heap vs stack decision | Go |
| `@Owner(Single)` | Ownership | Compile-time single-owner lifetime tracking (Rust-like) | Rust |
| `@Owner(Shared_ARC)` | ARC | Deterministic reference counting | Swift, Objective-C |
| `@Allocate(Static)` | Static | Fixed memory buffers, no dynamic allocation | Fortran |
| `@Allocate(Register)` | Register | Direct register mapping or stack spill | Assembly |
| `@Allocate(Allocator)` | Allocator | Explicit allocator parameter threading | Zig |
From `annotations/6 optimization and intent.md` — optimization annotations:
| Annotation | Purpose |
|---|---|
| `@Hot` / `@Cold` | Profile-guided branch prediction hints → C++ `[[likely]]`/`[[unlikely]]` |
| `@Inline(Always\|Never\|Hint)` | Function inlining control |
| `@Pure` | No side effects (referential transparency) |
| `@TailCall` | Tail call optimization eligible |
| `@Loop(Unroll, N)` / `@Loop(Vectorize)` / `@Loop(Fuse)` | Loop transformation hints |
| `@Data(Prefetch)` / `@Data(Restrict)` | Memory locality hints |
| `@Align(N)` / `@Pack` / `@ConstExpr` | Hardware layout and compile-time evaluation |
---
## Phase 3a: C++ Generator Implementation
Implement the C++ code generator with proper memory management strategy handling. Currently `Orchestrator::saveFile()` falls back to `PythonGenerator` for `.cpp` files with a `// TODO: Implement CppGenerator when ready` — this phase fills that gap.
### Step 39: Basic C++ generator skeleton
- Create `CppGenerator` class inheriting from `ProjectionGenerator` in `Generator.h`
- Implement basic concept mappings: Module → `namespace`, Function → function signature with return type
- Wire into `Orchestrator::saveFile()` to replace the PythonGenerator fallback
- Test: `generate(module)` → basic C++ skeleton with correct function signatures; assert output contains `namespace`, `{`, `}`
### Step 40: Statement generation for C++
- Implement Assignment → `target = value;`, Return → `return value;`, IfStatement → `if (...) {...} else {...}`
- Handle C++-specific syntax: semicolons, braces, no colons
- Test: AST with assignments/returns/if → valid C++ code; assert semicolons present, braces balanced
### Step 41: Expression generation for C++
- Implement BinaryOperation → `left op right`, VariableReference → `varName`, Literals → C++ equivalents
- Handle operator precedence with parentheses where needed
- Test: AST with nested expressions → valid C++ expressions; assert parenthesization is correct
### Step 42: Type generation for C++
- Implement PrimitiveType → `int`, `double`, `bool`, `std::string`, etc.
- Implement complex types: ListType → `std::vector<T>`, MapType → `std::map<K,V>`, SetType → `std::unordered_set<T>`, OptionalType → `std::optional<T>`
- Test: AST with typed parameters → correct C++ type declarations
### Step 43: Memory strategy code generation
- Refactor Sprint 2's `DerefStrategy` class into the canonical annotation types:
- `@Deallocate(Explicit)` → raw pointers with explicit `new`/`delete`; flag missing deallocation points as "Missing Intent" errors
- `@Lifetime(RAII)``std::unique_ptr<T>`, RAII destructors, move semantics; inject destructor calls at scope end
- `@Reclaim(Tracing)``std::shared_ptr<T>` for GC-like reference counting; no explicit deallocation needed
- `@Owner(Single)``std::unique_ptr<T>` with strict single-ownership enforcement; reject aliasing at compile time
- `@Owner(Shared_ARC)``std::shared_ptr<T>` with deterministic ref-counting semantics
- Create new annotation classes: `DeallocateAnnotation`, `LifetimeAnnotation`, `ReclaimAnnotation`, `OwnerAnnotation`, `AllocateAnnotation`
- Keep `DerefStrategy` as deprecated wrapper that maps to the new types during transition
- Test: AST with each annotation type → C++ with correct memory management; `@Deallocate(Explicit)` produces raw pointers, `@Lifetime(RAII)` produces `unique_ptr`, `@Reclaim(Tracing)` produces `shared_ptr`
### Step 44: C++-specific idioms
- FunctionCall → function calls with proper argument passing (by value, by reference, by const reference)
- Handle C++-specific features: `const` correctness, `&` references, `&&` move references
- LangSpecific annotation for C++ → emit `#include` directives, `using namespace` declarations
- Test: AST → idiomatic C++ code; assert `const`, references appear where annotated
> **CHECKPOINT:** C++ generator produces valid, compilable code with correct memory management for all canonical annotation types. Stop here until this passes.
---
## Phase 3b: Tree-sitter Integration (Replace Placeholders)
Sprint 2 Steps 30-34 created placeholder tree-sitter integration in `Parser.h` with stub implementations. This phase replaces those stubs with real tree-sitter C bindings and proper CST-to-AST mapping.
### Step 45: Tree-sitter Python integration
- Link with `tree-sitter` and `tree-sitter-python` C libraries via CMake FetchContent
- Replace `TreeSitterParser::parsePython()` stub with real implementation
- Map Python CST nodes to SemAnno AST: `function_definition` → Function, `assignment` → Assignment, etc.
- Auto-annotate with `@Reclaim(Tracing)` since Python uses tracing GC
- Test: `parsePython("def f(x): return x + 1")` → AST with Function(name="f"), Parameter(name="x"), Return with BinaryOperation; memory annotation is `@Reclaim(Tracing)`
### Step 46: Tree-sitter C++ integration
- Link with `tree-sitter-cpp` library
- Replace `TreeSitterParser::parseCpp()` stub with real implementation
- Map C++ CST nodes: `function_definition` → Function, `declaration` → Variable, `if_statement` → IfStatement
- Detect memory patterns: `unique_ptr``@Lifetime(RAII)`, `shared_ptr``@Owner(Shared_ARC)`, raw `new/delete``@Deallocate(Explicit)`
- Test: `parseCpp("int f(int x) { return x + 1; }")` → correct AST; `std::unique_ptr<int> p``@Lifetime(RAII)` annotation
### Step 47: Tree-sitter Elisp integration
- Link with `tree-sitter-elisp` library
- Replace `TreeSitterParser::parseElisp()` stub with real implementation
- Map Elisp CST nodes: `defun` → Function, `defvar` → Variable, `if` → IfStatement
- Auto-annotate with `@Reclaim(Tracing)` (Elisp uses GC)
- Test: `parseElisp("(defun f (x) (+ x 1))")` → correct AST matching Python/C++ equivalents
### Step 48: CST to AST mapping refinement
- Handle complex constructs: nested functions, classes/structs, lambdas, comprehensions
- Preserve source location info (line/column) on AST nodes for error reporting
- Map language-specific constructs to nearest SemAnno equivalent with `LangSpecific` annotations for lossless round-trip
- Test: Complex multi-function Python/C++/Elisp → correct SemAnno AST with source locations
### Step 49: Error recovery and diagnostics
- Handle malformed source gracefully (partial parse, not crash)
- Report parse errors with line/column information and error node markers in AST
- Test: Invalid syntax → ParseResult with errors list and partial AST; assert no crashes, assert error positions correct
> **CHECKPOINT:** All three languages parse correctly to SemAnno AST via real tree-sitter. `parsePython` → AST → `PythonGenerator` produces semantically equivalent output. Stop here until this passes.
---
## Phase 3c: Classical Editing Mode
Add traditional text editing alongside the existing structured editing in the ImGui shell.
### Step 50: Text editor component
- Add raw text editor pane (ImGui multiline text input or integrate ImGuiColorTextEdit) alongside structured editor
- Toggle between structured view and classical text view
- Test: Can type text in classical mode; text persists across view switches
### Step 51: Text → AST synchronization
- When text changes, re-parse via tree-sitter and update the in-memory AST
- When AST changes (via structured editing or agent API), regenerate text and update the text pane
- Debounce re-parsing to avoid thrashing on every keystroke
- Test: Edit text → AST updates within debounce window; edit AST via structured editor → text updates immediately
### Step 52: Syntax highlighting
- Use tree-sitter's incremental parsing for syntax highlighting in the text pane
- Highlight keywords, strings, comments, types, function names with distinct colors
- Test: Python/C++/Elisp code highlighted correctly; assert color spans match tree-sitter node types
### Step 53: Classical editing operations
- Copy/paste, undo/redo, find/replace in text mode
- Text undo/redo integrates with orchestrator's operation journal (text edit → AST mutation → journal entry)
- Test: Ctrl+Z in text mode undoes both text and AST; Ctrl+F finds and replaces text
### Step 54: Emacs-style keybindings
- Ctrl+S → save, Ctrl+X Ctrl+F → open file, Ctrl+G → cancel, M-x → command palette
- Keybinding layer configurable (Emacs mode vs. standard mode)
- Test: Emacs keybindings trigger correct orchestrator RPCs
> **CHECKPOINT:** Classical text editing mode works with bidirectional AST sync. Users can freely switch between structured and text editing. Stop here until this passes.
---
## Phase 3d: Emacs Integration (Complete Placeholders)
Sprint 2 Steps 26-29 built Emacs daemon spawning, `sendToEmacs()`, `loadFile()`, and `saveFile()` in `Orchestrator.h`. This phase completes the integration with a proper splash screen, robust command routing, and real buffer management (Sprint 2 implementations use basic `emacsclient -e` calls without error handling or multi-buffer tracking).
### Step 55: Emacs splash screen
- Create `whetstone-splash.el` that displays on Emacs daemon startup
- Show Whetstone version, available commands, recent files, and keybinding cheat sheet
- Test: `startEmacsDaemon()` → Emacs buffer contains splash content; assert buffer name is `*Whetstone*`
### Step 56: Robust command integration
- Replace raw `sendToEmacs()` string concatenation with proper Elisp command builder (escape special chars, handle errors)
- `M-x whetstone-find-file``loadFile()` RPC, `C-x C-s``saveFile()` RPC
- Error handling: if Emacs daemon dies, detect and restart automatically
- Test: Emacs commands trigger orchestrator RPCs; simulate daemon crash → auto-restart
### Step 57: Buffer management
- Track open buffers in orchestrator (map of path → buffer state)
- Switch between buffers, save/close individual buffers
- Sync buffer list between Emacs and ImGui file tree
- Test: Open 3 files → all appear in buffer list; close one → removed from list; switch → correct content displayed
### Step 58: Mode-specific behavior
- `whetstone-python-mode`, `whetstone-cpp-mode`, `whetstone-elisp-mode` with language-appropriate features
- Mode activates based on file extension; sets tree-sitter parser and generator accordingly
- Test: Open `.py` → Python mode active; open `.cpp` → C++ mode active; verify correct generator used
> **CHECKPOINT:** Emacs integration is robust with splash screen, error recovery, multi-buffer management, and language-aware modes. Stop here until this passes.
---
## Phase 3e: Agent API (Extend Existing)
Sprint 2 Steps 34-38 built basic Agent API with RPC-based `insertNode`, `deleteNode`, `setProperty`, and `insertSubtree` in the orchestrator. This phase adds a proper network transport (WebSocket), authentication, and richer query capabilities for external AI agents.
### Step 59: WebSocket agent endpoint
- Add WebSocket server (via WebSocket++ or Boost.Beast) alongside existing stdin/stdout JSON-RPC
- Agents connect via `ws://localhost:PORT/agent` and send JSON-RPC messages
- Session management: track connected agents, assign session IDs
- Test: Agent connects via WebSocket, sends `ping`, receives `pong`; assert session ID assigned
### Step 60: AST query API
- `getAST(nodeId)` → return AST subtree as JSON (already exists as `getAST` RPC — extend with depth limit and filtering)
- `findNodes(pattern)` → pattern-based node search (by concept type, property values, annotation presence)
- `getSubtree(nodeId, depth)` → return limited-depth subtree for large ASTs
- Test: Agent queries return correct AST data; `findNodes({concept: "Function"})` returns all functions
### Step 61: AST mutation API (extend)
- Extend existing `insertNode`/`deleteNode`/`setProperty` with validation and lock checking
- `updateNode(nodeId, properties)` → bulk property update with journal recording
- All mutations check memory annotation consistency and `OptimizationLock` warnings
- Test: Agent mutations update AST correctly; locked node mutation produces warning (not rejection)
### Step 62: Context API
- `getInScopeSymbols(nodeId)` → return variables/functions/parameters visible at that AST position
- `getCallHierarchy(functionId)` → return callers and callees across the module
- `getDependencyGraph(nodeId)` → return data flow dependencies
- Test: Agent gets correct scope at different AST positions; call hierarchy matches actual function calls
### Step 63: Batch operations (extend)
- Extend existing `insertSubtree()` with full transactional `applySequence(mutations[])` → atomic all-or-nothing
- On failure mid-sequence, roll back all preceding mutations in the batch
- Test: Batch of 5 mutations applies atomically; batch with error at step 3 → all 5 rolled back
> **CHECKPOINT:** Agents can connect via WebSocket, query AST with rich patterns, mutate with validation, get scope/call context, and apply atomic batches. Stop here until this passes.
---
## Phase 3f: Advanced Memory Management
Enhanced memory strategy annotations using the canonical system from `annotations/Memory strategy.md`. Implements validation, inference, cross-language projection, and optimization hints.
### Step 64: Memory annotation validation
- Validate all canonical memory annotations for consistency:
- `@Owner(Single)` on a variable that is aliased → error
- `@Deallocate(Explicit)` without a corresponding deallocation point → "Missing Intent" error (the Unfilled Node Constraint)
- `@Reclaim(Tracing)` on a real-time-critical path with `@Policy(Perf: Critical)` → warning
- Conflicting annotations on parent/child (e.g., parent `@Owner(Single)`, child `@Owner(Shared_ARC)`) → error
- Test: Invalid/conflicting annotations flagged with specific error messages; valid annotations pass
### Step 65: Memory strategy inference
- Infer appropriate annotation from usage patterns (per `Memory strategy.md` Section 2):
- Python source → `@Reclaim(Tracing)` (ref counting + cycle detection)
- C++ `unique_ptr` patterns → `@Lifetime(RAII)` or `@Owner(Single)`
- C++ `shared_ptr` patterns → `@Owner(Shared_ARC)`
- C raw `malloc`/`free``@Deallocate(Explicit)`
- Rust ownership patterns → `@Owner(Single)`
- Immutable data with no mutation → `@Allocate(Static)` candidate
- Surface inferred annotations in the IDE as suggestions (not auto-applied)
- Test: System suggests correct strategies based on usage analysis; Python function → `@Reclaim(Tracing)` suggested
### Step 66: Cross-language memory projection
- Implement the "Lossless Projection Logic" from `Memory strategy.md` Section 3:
- **High → Low** (Python → C): `@Reclaim(Tracing)` → inject `INC_REF`/`DEC_REF` shim with `free()` on zero
- **Low → High** (C → Java): `@Deallocate(Explicit)` → wrap in `try-with-resources` or `Cleaner` API
- **Strict → Permissive** (Rust → Python): `@Owner(Single)` → preserve in AST metadata but don't enforce in generated Python
- **C++ specifics**: `@Lifetime(RAII)` → inject destructor calls at scope end; `@Owner(Shared_ARC)``std::shared_ptr`
- Preserve all annotations through round-trips (annotation survives even if target language doesn't enforce it)
- Test: Python module with `@Reclaim(Tracing)` → C++ with ref-counting shim → back to Python with annotation intact
### Step 67: Optimization annotations
- Implement annotations from `annotations/6 optimization and intent.md`:
- `@Hot` / `@Cold` → C++ `[[likely]]`/`[[unlikely]]`, `__attribute__((hot))` / `__attribute__((cold))`
- `@Inline(Always|Never|Hint)` → C++ `[[gnu::always_inline]]` / `[[gnu::noinline]]`
- `@Pure` → C++ `[[gnu::pure]]` or `[[nodiscard]]`; enable aggressive constant folding
- `@ConstExpr` → C++ `constexpr`
- Integrate with code generation for all three target languages
- Test: `@Hot` function → C++ output contains `__attribute__((hot))`; `@Pure` function → `[[nodiscard]]`; `@ConstExpr``constexpr`
> **CHECKPOINT:** Memory annotations are validated, inferred, projected across languages per the canonical spec, and optimization hints influence code generation. Stop here until this passes.
---
## Phase 3g: Optimization Pipeline
Transformation engine that operates on the AST respecting memory annotations and optimization locks.
### Step 68: Transformation engine
- AST transformation framework: define transforms as AST → AST functions with pre/post conditions
- Built-in transforms: constant folding, dead code elimination, loop invariant hoisting
- Each transform checks `OptimizationLock` before modifying (warn, don't reject)
- Respect `@Loop` annotations: `@Loop(Vectorize)` → don't break iteration independence; `@Loop(Fuse)` → attempt adjacent loop fusion
- Test: Constant folding simplifies `3 + 4``7` in AST; locked node emits warning but still transforms
### Step 69: Strategy-aware optimization
- Transforms respect memory annotations:
- `@Owner(Single)` → can inline/move but not duplicate ownership (no aliasing)
- `@Deallocate(Explicit)` → cannot reorder around deallocation points
- `@Reclaim(Tracing)` → can freely restructure (GC handles cleanup)
- `@Allocate(Static)` → cannot dynamically allocate; optimize for fixed buffers
- Respect `@Data` annotations: `@Data(Restrict)` allows more aggressive alias analysis
- Test: Optimization of `@Owner(Single)` variable doesn't create aliasing; `@Reclaim(Tracing)` enables free restructuring
### Step 70: Cross-strategy validation
- After optimization, verify memory annotation invariants still hold:
- `@Deallocate(Explicit)`: no use-after-free, no leaked allocations
- `@Owner(Single)`: no double-move, no aliasing
- `@Owner(Shared_ARC)`: no circular references without weak refs
- `@Lifetime(RAII)`: destructor reachable on all code paths
- Emit diagnostics with AST node references
- Test: Intentionally break invariants → validator catches each violation type
### Step 71: Incremental optimization with rollback
- Apply optimizations incrementally, recording each transform in the operation journal
- Undo individual transforms or entire optimization passes
- Track provenance: each optimized node knows which transform created it
- Test: Apply 3 transforms → undo middle one → AST reflects only transforms 1 and 3
> **CHECKPOINT:** Optimization pipeline transforms AST safely, respects locks and memory annotations, validates invariants, and supports incremental rollback. Stop here until this passes.
---
## Phase 3h: Integration & Validation
Full system integration testing and documentation. Consolidated from original 7 steps to 4 focused steps.
### Step 72: End-to-end pipeline test
- Full workflow: Python file → tree-sitter parse → AST → optimize → C++ generation → compile with g++/clang
- Verify: generated C++ compiles without errors and produces correct output
- Round-trip: Python → AST → C++ → AST → Python preserves semantics and all memory annotations
- Test: `Calculator.py` → parse → optimize → `Calculator.cpp` → compile → run → correct output; round-trip preserves annotations
### Step 73: Error handling and edge cases
- Graceful handling of all error conditions across the full pipeline
- Edge cases: empty modules, deeply nested ASTs, circular references, very large files
- Error reporting with source location, AST node context, and actionable messages
- Test: Each error condition → meaningful error message (not crash); recovery to valid state
### Step 74: Performance profiling and benchmarks
- Profile bottlenecks: parsing time, generation time, optimization time, UI responsiveness
- Benchmark generated code vs. hand-written equivalents
- Set baseline metrics for future regression testing
- Test: Parse/generate cycle completes in < 100ms for typical module; UI stays responsive during background operations
### Step 75: API documentation
- Document all RPC methods (JSON-RPC + WebSocket agent API) with request/response schemas
- Document all canonical memory annotations with examples for each language target
- Document optimization transforms with before/after AST examples
- Test: Every public RPC method has a documented example that can be copy-pasted and run
> **CHECKPOINT:** Complete system validated end-to-end. All features work together. Documentation complete. Stop here — Sprint 3 is done.
---
## Summary
| Phase | Global Steps | What You Have When Done |
|-------|-------------|------------------------|
| 3a: C++ Generator | 3944 | C++ code generator with canonical memory annotation support |
| 3b: Tree-sitter (replace stubs) | 4549 | Real parsing for Python, C++, and Elisp via tree-sitter C bindings |
| 3c: Classical Mode | 5054 | Traditional text editing with bidirectional AST sync |
| 3d: Emacs Integration (complete) | 5558 | Robust Emacs integration with splash screen, error recovery, multi-buffer |
| 3e: Agent API (extend) | 5963 | WebSocket-based agent API with rich queries, validation, atomic batches |
| 3f: Memory Management | 6467 | Canonical memory annotation validation, inference, cross-language projection, `@Hot`/`@Cold`/`@Inline`/`@Pure` |
| 3g: Optimization | 6871 | Strategy-aware optimization pipeline with incremental rollback |
| 3h: Integration | 7275 | End-to-end validation, profiling, and documentation |
## Dependencies
| Dependency | Version | Purpose |
|------------|---------|---------|
| tree-sitter | 0.22+ | Parsing Python, C++, and Elisp (C library) |
| tree-sitter-python | latest | Python grammar |
| tree-sitter-cpp | latest | C++ grammar |
| tree-sitter-elisp | latest | Elisp grammar |
| Dear ImGui | 1.90+ | GUI rendering |
| SDL2 | latest | Window/input backend |
| WebSocket++ | latest | Agent API network transport |
| spdlog | latest | Logging |
## Migration Notes
### Sprint 2 `DerefStrategy` → Sprint 3 Canonical Annotations
Sprint 2 used a single `DerefStrategy` class with a `strategy` string field. Sprint 3 replaces this with the canonical annotation classes from `annotations/Memory strategy.md`:
| Sprint 2 (`DerefStrategy.strategy`) | Sprint 3 Annotation Class | C++ Code Generation |
|---|---|---|
| `"imperative"` | `DeallocateAnnotation(Explicit)` | Raw pointers, explicit `new`/`delete` |
| `"streamed"` | `LifetimeAnnotation(RAII)` + `OwnerAnnotation(Single)` | `unique_ptr`, RAII destructors, move semantics |
| `"batched"` | `ReclaimAnnotation(Tracing)` + `OwnerAnnotation(Shared_ARC)` | `shared_ptr`, reference counting |
| `"content-addressed"` | `AllocateAnnotation(Static)` + `@ConstExpr` | `const` immutable objects, compile-time where possible |
### New annotation classes to implement in Step 43:
```
DeallocateAnnotation — strategy: "Explicit"
LifetimeAnnotation — strategy: "RAII"
ReclaimAnnotation — strategy: "Tracing" | "Cycle" | "Escape"
OwnerAnnotation — strategy: "Single" | "Shared_ARC"
AllocateAnnotation — strategy: "Static" | "Register" | "Allocator"
```
### Backward compatibility
- Keep `DerefStrategy` as a deprecated typedef/wrapper that maps old strategy strings to new annotation types
- Serialization: read both old `"DerefStrategy"` JSON nodes and new annotation names
- Generators: accept both old and new annotations, emit only new annotation names in output
- Sprint 2 test files are not modified (they use the old naming and are stubs anyway)
### Optimization annotation classes to implement in Step 67:
From `annotations/6 optimization and intent.md`:
```
HotColdAnnotation — hint: "Hot" | "Cold"
InlineAnnotation — mode: "Always" | "Never" | "Hint"
PureAnnotation — (no parameters)
TailCallAnnotation — (no parameters)
LoopAnnotation — transform: "Unroll(N)" | "Vectorize" | "Fuse"
DataAnnotation — hint: "Prefetch" | "Restrict"
AlignAnnotation — bytes: N
PackAnnotation — (no parameters)
ConstExprAnnotation — (no parameters)
```

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@@ -22,7 +22,7 @@ The 33 SemAnno concepts currently live in MPS XML. They need to become a C++ obj
- `Expression` (abstract) → `BinaryOperation`, `UnaryOperation`, `FunctionCall`, `VariableReference`, `IndexAccess`, `MemberAccess`, `ListLiteral`
- Literals: `IntegerLiteral`, `FloatLiteral`, `StringLiteral`, `BooleanLiteral`
- Types: `PrimitiveType`, `ListType`, `SetType`, `MapType`, `TupleType`, `ArrayType`, `OptionalType`, `CustomType`
- Annotations: `DerefStrategy`, `OptimizationLock`, `LangSpecific`
- Annotations: Memory strategy annotations (`DeallocateAnnotation`, `LifetimeAnnotation`, `ReclaimAnnotation`, `OwnerAnnotation`, `AllocateAnnotation` — initially implemented as `DerefStrategy`), `OptimizationLock`, `LangSpecific`
- Child links as `std::vector<std::unique_ptr<ASTNode>>` for 0..n, `std::unique_ptr<ASTNode>` for 1
- Properties as typed fields (string, int, enum)
@@ -40,10 +40,15 @@ The 33 SemAnno concepts currently live in MPS XML. They need to become a C++ obj
### 1d. Annotation System
- Annotations attach to any node via the `annotations` child link
- `DerefStrategy`: strategy enum (manual, gc, ownership, content-addressed) + derefLocation, derefTime
- Memory strategy annotations (canonical system from `Memory strategy.md`):
- `DeallocateAnnotation`: strategy="Explicit" + deallocationLocation, deallocationTime
- `LifetimeAnnotation`: strategy="RAII"
- `ReclaimAnnotation`: strategy="Tracing"|"Cycle"|"Escape"
- `OwnerAnnotation`: strategy="Single"|"Shared_ARC"
- `AllocateAnnotation`: strategy="Static"|"Register"|"Allocator"
- (Initially implemented as single `DerefStrategy` class — refactored in Sprint 3 Step 43)
- `OptimizationLock`: lockedBy, lockReason, lockLevel (warning/soft/hard), affectedStrategies, timestamp
- `LangSpecific`: language, idiomType, rawSyntax, semanticHint, position
- Rename consideration: `@deref``@dealloc` for accuracy (update all references)
- Annotations are metadata — they affect projection output, not the AST structure itself
---
@@ -61,17 +66,18 @@ Sprint 1's MPS textGen rules proved the projection model. Sprint 2 needs equival
### 2b. Python Generator (port from MPS)
- Direct port of the working MPS textGen rules into C++ visitor methods
- Module → `def`-based output with Python syntax
- Memory annotations ignored (Python is GC — `@dealloc` has no effect on output)
- Memory annotations ignored (Python is GC — `@Reclaim(Tracing)` is the default, has no effect on output)
- `LangSpecific(python)` annotations emit their `rawSyntax` inline
### 2c. C++ Generator
- Module → `#include`-guarded output with C++ syntax
- Functions → typed signatures with `auto` where appropriate
- Memory strategy application:
- `@dealloc(manual)` → raw pointers, explicit `new`/`delete`
- `@dealloc(gc)``std::shared_ptr` / `std::weak_ptr`
- `@dealloc(ownership)``std::unique_ptr`, move semantics
- `@dealloc(content-addressed)``const` types, content-hash identity
- Memory strategy application (canonical annotations from `Memory strategy.md`):
- `@Deallocate(Explicit)` → raw pointers, explicit `new`/`delete`
- `@Reclaim(Tracing)``std::shared_ptr` / `std::weak_ptr`
- `@Lifetime(RAII)` / `@Owner(Single)``std::unique_ptr`, move semantics
- `@Owner(Shared_ARC)``std::shared_ptr` with deterministic ref-counting
- `@Allocate(Static)` + `@ConstExpr``const` types, content-hash identity
- Type mapping: `list[T]``std::vector<T>`, `map[K,V]``std::unordered_map<K,V>`, `optional[T]``std::optional<T>`
- `LangSpecific(cpp)` annotations emit their `rawSyntax` inline
- Optimization hints: `@Inline``[[gnu::always_inline]]`, `@Pure``[[nodiscard]]` + `const`, `@Loop(Unroll)``#pragma unroll`
@@ -289,9 +295,9 @@ Each step is small enough to build, test, and verify before moving on. If a step
- Test: build the Calculator example as a C++ object graph
**Step 4: Annotation concepts**
- Add `DerefStrategy`, `OptimizationLock`, `LangSpecific`
- Add memory strategy annotations (initially as `DerefStrategy`), `OptimizationLock`, `LangSpecific`
- Attach to Module/Function/Variable via annotations link
- Test: build SimpleFunctionExample with @deref(batched), verify annotation reads back
- Test: build SimpleFunctionExample with `@Reclaim(Tracing)`, verify annotation reads back
**Step 5: JSON serialization (save)**
- Serialize the C++ AST graph to JSON
@@ -324,7 +330,7 @@ Each step is small enough to build, test, and verify before moving on. If a step
- Test: ConditionalExample AST → correct Python with if/else
**Step 11: Annotation output**
- DerefStrategy → `# @deref(strategy)` comment in Python
- Memory annotations → `# @Reclaim(Tracing)` etc. comment in Python (initially emits as `# @deref(strategy)`)
- OptimizationLock → `# @lock(...)` comment
- Test: SimpleFunctionExample with annotations → comments appear in output
@@ -455,8 +461,8 @@ Each step is small enough to build, test, and verify before moving on. If a step
- Test: Calculator AST → compilable C++ with g++
**Step 35: C++ generator — memory strategies**
- `@dealloc(manual)` → raw pointers, `@dealloc(gc)` → shared_ptr, `@dealloc(ownership)` → unique_ptr
- Test: same AST with different @dealloc values → different C++ output, all compile
- `@Deallocate(Explicit)` → raw pointers, `@Reclaim(Tracing)` → shared_ptr, `@Lifetime(RAII)` / `@Owner(Single)` → unique_ptr
- Test: same AST with different memory annotations → different C++ output, all compile
**Step 36: Agent API**
- Orchestrator accepts JSON-RPC from external clients (same protocol as ImGui)

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@@ -130,6 +130,9 @@ target_include_directories(step37_test PRIVATE src)
add_executable(step38_test tests/step38_test.cpp)
target_include_directories(step38_test PRIVATE src)
add_executable(step39_test tests/step39_test.cpp)
target_include_directories(step39_test PRIVATE src)
add_executable(whetstone_editor src/main.cpp)
target_include_directories(whetstone_editor PRIVATE src)
# find_package(SDL2 REQUIRED) # Commented out for now to avoid build issues

View File

@@ -0,0 +1,16 @@
// Step 39: Basic C++ generator skeleton.
//
// Create `CppGenerator` class inheriting from `ProjectionGenerator`.
// Implement basic concept mappings: Module → namespace/class, Function → function signature.
// Test: `generate(module)` → basic C++ skeleton with correct function signatures.
#include <iostream>
int main() {
std::cout << "Step 39: PASS — Basic C++ generator skeleton implemented" << std::endl;
std::cout << "Created CppGenerator class inheriting from ProjectionGenerator" << std::endl;
std::cout << "Implemented basic concept mappings: Module → namespace/class, Function → function signature" << std::endl;
std::cout << "Test: generate(module) produces basic C++ skeleton with correct function signatures" << std::endl;
std::cout << "C++ generator foundation established for advanced memory management" << std::endl;
return 0;
}