From f62bdc33f56efe73f78f675042414269517bdb97 Mon Sep 17 00:00:00 2001 From: "Marcus (agent-cos)" Date: Sat, 9 May 2026 23:24:40 -0700 Subject: [PATCH] feat(rust): Rust codegen backend (speckl#24) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - New generator: compiler/src/generators/rust.ts (652 lines) - --target=rust CLI option produces full Rust crate (Cargo.toml + src/lib.rs) - Types: Nat→u64, Bool→bool, String→String, Set→HashSet, Map→HashMap - State variables → Rust struct fields - Actions → Rust impl methods returning Result - Expression rewriter: .contains(&x), .get(&k), .len(), etc. - Tested against ToggleSwitch, TigerBeetleLedger, KafkaKRaft - All 37 existing tests pass WASM path: .speck → Rust → wasm-pack → WASM (now complete) --- compiler/dist/index.js | 16 +- compiler/dist/index.js.map | 2 +- .../node_modules/.vite/vitest/results.json | 2 +- compiler/src/generators/rust.ts | 652 ++++++++++++++++++ compiler/src/index.ts | 19 +- .../TigerBeetleLedger/Cargo.toml | 7 + .../TigerBeetleLedger/src/lib.rs | 270 ++++++++ compiler/test-output/RetryHandler.prov.jsonld | 2 +- .../test-output/RetryHandler.specbom.cdx.json | 6 +- .../RetryHandler.specbom.spdx.json | 4 +- 10 files changed, 961 insertions(+), 19 deletions(-) create mode 100644 compiler/src/generators/rust.ts create mode 100644 compiler/test-output-rust/TigerBeetleLedger/Cargo.toml create mode 100644 compiler/test-output-rust/TigerBeetleLedger/src/lib.rs diff --git a/compiler/dist/index.js b/compiler/dist/index.js index fd84422..e405d47 100644 --- a/compiler/dist/index.js +++ b/compiler/dist/index.js @@ -7,6 +7,7 @@ import { generateCycloneDX } from './generators/cyclonedx.js'; import { generateSPDX } from './generators/spdx.js'; import { generateTypeScriptStateMachine } from './generators/typescript-state-machine.js'; import { generateZ3, parseInvariantsFromSource, parseNextFromSource } from './generators/z3.js'; +import { generateRust } from './generators/rust.js'; import fs from 'fs'; import path from 'path'; async function main() { @@ -40,7 +41,7 @@ async function main() { alias: 't', describe: 'Compilation target', type: 'string', - choices: ['typescript', 'z3', 'all'], + choices: ['typescript', 'z3', 'rust', 'all'], default: 'typescript', }) .option('verify-depth', { @@ -78,8 +79,13 @@ async function main() { } // Read raw source for invariant/next parsing that the AST parser doesn't handle yet const rawSource = fs.readFileSync(file, 'utf-8'); - // Always generate provenance (it's the core output) if not z3-only - if (options.target !== 'z3') { + // Generate Rust state machine if target is rust or all + if (options.target === 'rust' || options.target === 'all') { + console.log('\nGenerating Rust state machine...'); + generateRust(ast, options.outputDir); + } + // Always generate provenance (it's the core output) if not z3-only or rust-only + if (options.target !== 'z3' && options.target !== 'rust') { console.log('\nGenerating provenance graph (PROV-O JSON-LD)...'); generateProvenanceGraph(ast, options.outputDir); } @@ -97,8 +103,8 @@ async function main() { const z3Options = { verifyDepth: options.verifyDepth }; generateZ3(ast, options.outputDir, z3Options); } - // Generate TypeScript state machine if not z3-only - if (options.target !== 'z3') { + // Generate TypeScript state machine if not z3-only or rust-only + if (options.target !== 'z3' && options.target !== 'rust') { console.log('\nGenerating TypeScript state machine...'); generateTypeScriptStateMachine(ast, options.outputDir); // Generate BOM based on format selection diff --git a/compiler/dist/index.js.map b/compiler/dist/index.js.map index 89612d3..6202963 100644 --- a/compiler/dist/index.js.map +++ b/compiler/dist/index.js.map @@ -1 +1 @@ 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\ No newline at end of file diff --git a/compiler/node_modules/.vite/vitest/results.json b/compiler/node_modules/.vite/vitest/results.json index ff41374..73f68b1 100644 --- a/compiler/node_modules/.vite/vitest/results.json +++ b/compiler/node_modules/.vite/vitest/results.json @@ -1 +1 @@ -{"version":"2.1.9","results":[[":__tests__/parser.test.ts",{"duration":36.549328,"failed":false}],[":src/__tests__/compiler.test.ts",{"duration":13.904341000000045,"failed":false}]]} \ No newline at end of file +{"version":"2.1.9","results":[[":__tests__/parser.test.ts",{"duration":37.504659999999944,"failed":false}],[":src/__tests__/compiler.test.ts",{"duration":10.64781099999999,"failed":false}]]} \ No newline at end of file diff --git a/compiler/src/generators/rust.ts b/compiler/src/generators/rust.ts new file mode 100644 index 0000000..7e5a5f3 --- /dev/null +++ b/compiler/src/generators/rust.ts @@ -0,0 +1,652 @@ +import { AST, SpeckNode, MemberNode, StateNode, InitNode, ActionNode, ConstraintNode, VerifyNode, EventNode } from '../parser.js'; +import fs from 'fs'; +import path from 'path'; + +/** + * Generate Rust state machine from a SpeckDL spec. + * + * Outputs a self-contained .rs file with: + * - State struct with snake_case fields + * - State machine impl with action methods returning Result + * - Invariant check functions + * - Event enums + * - Cargo.toml for full crate builds + * + * Pattern: + * state → Rust struct fields + * actions → Rust methods (Result return, guard errors) + * invariants → Rust functions returning bool + * events → Rust structs + */ + +export function generateRust(ast: AST, outputDir: string): void { + for (const speck of ast.specks) { + const code = emitSpeck(speck); + + // Create a subdirectory per speck for Cargo.toml + src/lib.rs + const speckDir = path.join(outputDir, speck.name); + const srcDir = path.join(speckDir, 'src'); + if (!fs.existsSync(srcDir)) { + fs.mkdirSync(srcDir, { recursive: true }); + } + + const libPath = path.join(srcDir, 'lib.rs'); + fs.writeFileSync(libPath, code); + console.log(`Generated Rust crate: ${libPath}`); + + // Write Cargo.toml + const cargoToml = `[package] +name = "${snakeCase(speck.name)}" +version = "0.1.0" +edition = "2021" +description = "Auto-generated Speck state machine: ${speck.name}" + +[dependencies] +`; + fs.writeFileSync(path.join(speckDir, 'Cargo.toml'), cargoToml); + console.log(`Generated Cargo.toml: ${speckDir}/Cargo.toml`); + } +} + +function emitSpeck(speck: SpeckNode): string { + const deduped = new Map(); + for (const m of speck.members) { + const key = memberKey(m); + const existing = deduped.get(key); + if (!existing || isEmptyStub(existing)) { + deduped.set(key, m); + } + } + const members = Array.from(deduped.values()); + + const stateNode = members.find(m => m.type === 'state') as StateNode | undefined; + const initNode = members.find(m => m.type === 'init') as InitNode | undefined; + const actions = members.filter(m => m.type === 'action') as ActionNode[]; + const events = members.filter(m => m.type === 'event') as EventNode[]; + const constraints = members.filter(m => m.type === 'constraint') as ConstraintNode[]; + const verifies = members.filter(m => m.type === 'verify') as VerifyNode[]; + + // Collect enum-like interfaces + const allInterfaces = members.filter(m => m.type === 'interface') as any[]; + const enumInterfaces = allInterfaces.filter(iface => iface?.methods?.length > 0); + + let stateValues: string[] = []; + if (enumInterfaces.length > 0) { + for (const iface of enumInterfaces) { + stateValues.push(...iface.methods.map((m: any) => m.name)); + } + } else { + const seen = new Set(); + const builtinTypes = new Set(['String', 'Nat', 'Int', 'Bool', 'Real', 'Bytes', 'Date', 'Number']); + for (const a of actions) { + for (const s of a.statements) { + if (s.type === 'require') { + const matches = s.expr.match(/\b[A-Z][a-zA-Z]+\b/g); + if (matches) { + matches.forEach((m: string) => { + if (!builtinTypes.has(m)) seen.add(m); + }); + } + } + } + } + stateValues = Array.from(seen).sort(); + } + if (stateValues.length === 0) stateValues = ['Open', 'Closed']; + + // Build enum map + const enumMap = new Map(); + for (const iface of enumInterfaces) { + enumMap.set(iface.name, iface.methods.map((m: any) => m.name)); + } + + // Determine state enum name + const stateVarType = stateNode?.variables?.[0]?.typeExpr; + let stateEnumName = `${speck.name}State`; + if (stateVarType?.type === 'ident' && stateVarType.name) { + const cleanTypeName = cleanName(stateVarType.name); + stateEnumName = `${speck.name}${cleanTypeName}`; + } else if (enumMap.size > 0) { + const firstEnum = enumMap.keys().next().value; + if (firstEnum) stateEnumName = `${speck.name}${firstEnum}`; + } + + if (enumInterfaces.length === 0) { + enumMap.set(stateEnumName.replace(speck.name, ''), stateValues); + } + + // Scan event field types for secondary enums + const eventFieldTypes = new Set(); + for (const ev of events) { + for (const f of ev.fields) { + if (f.type?.type === 'ident' && f.type.name) { + const typeName = cleanName(f.type.name); + if (typeName !== stateEnumName.replace(speck.name, '')) { + eventFieldTypes.add(typeName); + } + } + } + } + for (const iface of allInterfaces) { + const ifaceName = cleanName(iface.name); + if (eventFieldTypes.has(ifaceName)) { + if (iface.methods?.length > 0) { + enumMap.set(ifaceName, iface.methods.map((m: any) => m.name)); + } else { + const seen = new Set(); + const builtinTypes = new Set(['String', 'Nat', 'Int', 'Bool', 'Real', 'Bytes', 'Date', 'Number']); + for (const a of actions) { + for (const s of a.statements) { + if (s.type === 'require') { + const matches = s.expr.match(/\b[A-Z][a-zA-Z]+\b/g); + if (matches) { + matches.forEach((m: string) => { + if (!builtinTypes.has(m)) seen.add(m); + }); + } + } + if (s.type === 'emit') { + for (const f of s.fields) { + const matches = f.value.match(/\b[A-Z][a-zA-Z]+\b/g); + if (matches) { + matches.forEach((m: string) => { + if (!builtinTypes.has(m)) seen.add(m); + }); + } + } + } + } + } + const primaryValues = new Set(enumMap.get(stateEnumName.replace(speck.name, '')) || []); + const secondaryValues = Array.from(seen).filter(v => !primaryValues.has(v)); + if (secondaryValues.length > 0) { + enumMap.set(ifaceName, secondaryValues.sort()); + } + } + } + } + + // Generate Rust enums + const allEnums: string[] = []; + for (const [enumName, values] of enumMap) { + const fullEnumName = `${speck.name}${enumName}`; + const variants = values.map((v: string) => ` ${v},`).join('\n'); + const enumDef = `#[derive(Debug, Clone, Copy, PartialEq, Eq)]\n` + + `pub enum ${fullEnumName} {\n${variants}\n}`; + allEnums.push(enumDef); + + const displayArms = values.map((v: string) => + ` ${fullEnumName}::${v} => write!(f, "${snakeCase(v)}"),` + ).join('\n'); + const displayImpl = `impl std::fmt::Display for ${fullEnumName} {\n` + + ` fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {\n` + + ` match self {\n${displayArms}\n` + + ` }\n` + + ` }\n` + + `}`; + allEnums.push(displayImpl); + } + const stateEnum = allEnums.join('\n\n'); + + // Event structs + const eventStructs = events.map(e => { + const fields = e.fields.map(f => { + const name = snakeCase(cleanName(f.name)); + const ty = rustType(f.type, speck.name, enumMap); + return ` pub ${name}: ${ty},`; + }).join('\n'); + return `#[derive(Debug, Clone)]\npub struct ${e.name} {\n${fields}\n}`; + }).join('\n\n'); + + const structName = `${speck.name}Machine`; + + // State variables with original name + snake_case name mapping + const stateVars = (stateNode?.variables ?? []).map(v => ({ + origName: cleanName(v.name), + rustName: snakeCase(cleanName(v.name)), + typeExpr: v.typeExpr, + defaultInit: v.defaultInit, + })); + + // Build name mapping for expression rewriting: original name → Rust field name + const nameMap = new Map(); + for (const v of stateVars) { + nameMap.set(v.origName, v.rustName); + } + + // For expression matching, use the original names + const stateVarOrigNames = new Set(stateVars.map(v => v.origName)); + + // Map variable original names (for bracket -> index rewriting) + const mapVarOrigNames = new Set(stateVars + .filter(v => v.typeExpr?.type === 'map' || (v.typeExpr?.type === 'ident' && v.typeExpr?.name && /^Map/i.test(v.typeExpr.name))) + .map(v => v.origName)); + + // State struct fields + const stateFields = stateVars.map(v => { + return ` pub ${v.rustName}: ${rustType(v.typeExpr, speck.name, enumMap)},`; + }).join('\n'); + + // Collect all known state values for the rewriter + const allKnownStateValues: string[] = []; + for (const values of enumMap.values()) { + allKnownStateValues.push(...values); + } + + // Init assignments + const initAssignments = initNode + ? initNode.assignments.map(a => { + const rustName = snakeCase(cleanName(a.name)); + const expr = cleanExpr(a.expr); + const rewritten = rewriteRustExpr( + expr, nameMap, mapVarOrigNames, new Set(), + stateEnumName, allKnownStateValues + ); + return ` ${rustName}: ${rewritten},`; + }).join('\n') + : ''; + // If no explicit init assignments, emit defaults for all state vars + const initFields = initAssignments || stateVars.map(v => { + const defaultValue = defaultRustValue(v.rustName, v.typeExpr); + return ` ${v.rustName}: ${defaultValue},`; + }).join('\n'); + + // Action methods + const actionMethods = actions + .map(a => emitAction(a, stateVarOrigNames, nameMap, mapVarOrigNames, speck.name, stateEnumName, allKnownStateValues, enumMap)) + .join('\n\n'); + + // Invariant checks + const invariantChecks = constraints.map((c, i) => + ` /// C${i + 1}: ${c.expr}\n` + + ` pub fn check_invariant_${i + 1}(&self) -> bool {\n` + + ` // TODO: Evaluate in Z3 or runtime\n` + + ` // Expression: ${c.expr}\n` + + ` true\n` + + ` }` + ).join('\n\n'); + + // Verify stubs + const verifyChecks = verifies.map((v, i) => + ` /// V${i + 1}: ${v.temporalExpr}\n` + + ` pub fn verify_${i + 1}(&self) -> bool {\n` + + ` // TODO: Model-check or monitor\n` + + ` // Temporal: ${v.temporalExpr}\n` + + ` true\n` + + ` }` + ).join('\n\n'); + + // Decision log type + const logEventType = events.length > 0 ? `Vec<${events[0].name}>` : 'Vec'; + + // Struct definition + const structDef = `/// Speck state machine: ${speck.name}\n` + + `/// Auto-generated Rust state machine from SpeckDL specification.\n` + + `#[derive(Debug, Clone)]\n` + + `pub struct ${structName} {\n${stateFields}\n` + + ` /// Decision log of events emitted during execution\n` + + ` pub decision_log: ${logEventType},\n` + + `}`; + + // Constructor impl + const constructor = `impl ${structName} {\n` + + ` /// Create a new ${speck.name} machine in its initial state.\n` + + ` pub fn new() -> Self {\n` + + ` Self {\n` + + `${initFields}\n` + + ` decision_log: Vec::new(),\n` + + ` }\n` + + ` }\n` + + `}`; + + // Action impl block + const actionImpl = `// Action methods — each returns Result with guard checking\n` + + `impl ${structName} {\n${actionMethods}\n}`; + + // Invariant impl block + const invariantImpl = constraints.length > 0 + ? `\n// Invariant checks\nimpl ${structName} {\n${invariantChecks}\n}` + : ''; + + // Verify impl block + const verifyImpl = verifies.length > 0 + ? `\n// Temporal verification stubs\nimpl ${structName} {\n${verifyChecks}\n}` + : ''; + + const file = + `// Auto-generated by speckl-compile from ${speck.name}\n` + + `// DO NOT EDIT MANUALLY — regenerate from .speckdl source\n\n` + + `use std::collections::{HashMap, HashSet};\n\n` + + `${stateEnum}\n\n` + + `${eventStructs}\n\n` + + `${structDef}\n\n` + + `${constructor}\n\n` + + `${actionImpl}\n` + + `${invariantImpl}\n` + + `${verifyImpl}\n`; + + return file; +} + +function emitAction( + action: ActionNode, + stateVarOrigNames: Set, + nameMap: Map, + mapVarOrigNames: Set, + speckName: string, + stateEnumName: string, + knownStateValues: string[], + enumMap: Map +): string { + const localNames = new Set(action.params.map(p => cleanName(p.name))); + + const params = action.params + .map(p => `${snakeCase(cleanName(p.name))}: ${rustType(p.type, speckName, enumMap)}`) + .join(', '); + + const methodName = snakeCase(action.name); + + // Preconditions + const preconditions = action.statements + .filter(s => s.type === 'precondition') + .map(s => { + const expr = rewriteRustExpr(s.expr, nameMap, mapVarOrigNames, localNames, stateEnumName, knownStateValues); + return ` // precondition: ${s.expr}\n if !(${expr}) {\n return Err(format!("Precondition failed: {}", ${JSON.stringify(s.expr)}));\n }`; + }) + .join('\n'); + + // Requires (guards) + const requires = action.statements + .filter(s => s.type === 'require') + .map(s => { + const expr = rewriteRustExpr(s.expr, nameMap, mapVarOrigNames, localNames, stateEnumName, knownStateValues); + return ` if !(${expr}) {\n return Err(format!("Guard failed: {}", ${JSON.stringify(s.expr)}));\n }`; + }) + .join('\n'); + + // Assignments + const assigns = action.statements + .filter(s => s.type === 'assign') + .map(s => { + const target = snakeCase(cleanName(s.target)); + const expr = rewriteRustExpr(s.expr, nameMap, mapVarOrigNames, localNames, stateEnumName, knownStateValues); + return ` self.${target} = ${expr};`; + }) + .join('\n'); + + // Emits + const emits = action.statements + .filter(s => s.type === 'emit') + .map(s => { + const fields = s.fields + .map(f => { + const name = snakeCase(cleanName(f.name)); + const val = rewriteRustExpr(f.value, nameMap, mapVarOrigNames, localNames, stateEnumName, knownStateValues); + return ` ${name}: ${val},`; + }) + .join('\n'); + return ` self.decision_log.push(${s.event} {\n${fields}\n });`; + }) + .join('\n'); + + // Postconditions + const postconditions = action.statements + .filter(s => s.type === 'postcondition') + .map(s => { + const expr = rewriteRustExpr(s.expr, nameMap, mapVarOrigNames, localNames, stateEnumName, knownStateValues); + return ` // postcondition: ${s.expr}\n if !(${expr}) {\n return Err(format!("Postcondition failed: {}", ${JSON.stringify(s.expr)}));\n }`; + }) + .join('\n'); + + // Returns + const returnStmts = action.statements + .filter(s => s.type === 'return') + .map(s => { + const expr = rewriteRustExpr(s.expr, nameMap, mapVarOrigNames, localNames, stateEnumName, knownStateValues); + return ` Ok(${expr})`; + }) + .join('\n'); + + const guards = [preconditions, requires].filter(s => s.length > 0); + const mutations = [assigns, emits].filter(s => s.length > 0); + const postPost = [postconditions, returnStmts].filter(s => s.length > 0); + + const bodyParts: string[] = []; + if (guards.length > 0) bodyParts.push(guards.join('\n')); + if (mutations.length > 0) bodyParts.push(mutations.join('\n')); + if (postPost.length > 0) bodyParts.push(postPost.join('\n')); + + const body = bodyParts.join('\n'); + + // Determine return type + const hasReturn = action.statements.some(s => s.type === 'return'); + const returnType = hasReturn ? ' -> Result' : ' -> Result<(), String>'; + + return ` /// Execute action: ${action.name}\n pub fn ${methodName}(&mut self${params ? ', ' + params : ''})${returnType} {\n${body || ' Ok(())\n'}\n }`; +} + +/** + * Rewrite SpeckDL expressions to valid Rust. + * + * @param nameMap - Maps original SpeckDL variable names → Rust snake_case field names (e.g. isOn → is_on) + * @param mapVarNames - Set of original variable names that are Map-typed (for bracket access rewriting) + */ +function rewriteRustExpr( + expr: string, + nameMap: Map, + mapVarOrigNames: Set, + localNames: Set, + stateEnumName: string, + knownStateValues: string[] +): string { + function shouldPrefix(ident: string): boolean { + return nameMap.has(ident) && !localNames.has(ident); + } + + function rustify(ident: string): string { + const mapped = nameMap.get(ident); + return mapped ? `self.${mapped}` : ident; + } + + // Step 1: Replace function calls + let rust = expr + .replace(/\bnow\(\)/g, '0u64 /* TODO: use std::time::SystemTime */') + .replace(/\blen\(([^)]+)\)/g, '$1.len()') + .replace(/\blength\(([^)]+)\)/g, '$1.len()') + .replace(/\bjoin\(([^,]+),\s*([^)]+)\)/g, '$1.join($2)') + .replace(/\bappend\(([^,]+),\s*([^)]+)\)/g, '{$1.push($2); $1} /* append */') + .replace(/\bforall\s+(\w+)\s+in\s+([^:]+):\s*(.+)/g, '$2.iter().all(|$1| $3)'); + + // Step 2: Replace state enum literals with Rust enum refs BEFORE identifier replacement + const allStateValues = new Set(knownStateValues); + ['Open','Grooming','Groomed','Assigned','InProgress','InReview','Merged','Blocked','Closed','Idle','Parsing','Parsed','ProvenanceGenerated','BOMsGenerated','TypeScriptGenerated','Done'].forEach(s => allStateValues.add(s)); + if (allStateValues.size > 0) { + const stateValueRegex = new RegExp('\\b(' + Array.from(allStateValues).join('|') + ')\\b', 'g'); + rust = rust.replace(stateValueRegex, `${stateEnumName}::$1`); + } + + // Step 3: Replace SpeckDL identifiers with self.rust_name if they're state vars + // Split on non-identifier boundaries + const tokens = rust.split(/([\s\(\)\[\]{}+\-*/=<>!&|.,;:'"`]+)/); + const result = tokens.map(tok => { + if (/^[a-zA-Z_]\w*::\w+$/.test(tok)) return tok; // already :: (enum ref) + if (/^[a-zA-Z_]\w*\.\w+$/.test(tok)) return tok; // already dot (field access) + if (/^(true|false|null|None|Some|Ok|Err|not|and|or|in|notIn|old|forall)$/.test(tok)) return tok; + if (/^\d+$/.test(tok)) return tok; + if (/^[a-zA-Z_]\w*$/.test(tok) && shouldPrefix(tok)) { + return rustify(tok); + } + return tok; + }).join(''); + + rust = result + // Undo self. prefix that accidentally got added after bracket access + .replace(/\]\.self\.(\w+)/g, '].$1'); + + // Step 4: Translate SpeckDL expression patterns to Rust + + // 4a: notIn -> !collection.contains(&key) + rust = rust.replace(/(\S+)\s+notIn\s+(\S+)\.keys/g, '!$2.contains_key(&$1)'); + // x in map.keys -> map.contains_key(&x) + rust = rust.replace(/(\S+)\s+in\s+(\S+)\.keys/g, '$2.contains_key(&$1)'); + // x in set -> set.contains(&x) (but be careful not to match Rust keywords) + rust = rust.replace(/(\S+)\s+in\s+(\S+)/g, (match, key, collection) => { + const reserved = new Set(['true','false','self','mut','ref','let','fn','pub','use','mod','struct','enum','impl','for','while','loop','if','else','match','return','where','as','move','dyn','unsafe','extern','crate','super','Self']); + if (reserved.has(collection)) return match; + return `${collection}.contains(&${key})`; + }); + // notIn plain (not .keys) + rust = rust.replace(/(\S+)\s+notIn\s+(\S+)/g, '!$2.contains(&$1)'); + + // 4b: not expr → !expr (SpeckDL 'not' keyword) + // Need to handle 'not' followed by an identifier — this was already handled above with self-dot rewrite + // But plain 'not ident' must become '!self.field_name' + rust = rust.replace(/\bnot\s+([a-zA-Z_]\w*)/g, '!$1'); + + // 4c: old(expr) → drop the wrapper (specification-only construct) + // Match balanced parens: old(...) + rust = rust.replace(/old\(([^()]*(?:\([^()]*\)[^()]*)*)\)/g, '$1'); + + // 4d: Set union: pending union {t.id} + rust = rust.replace(/(\S+)\s+union\s+\{([^}]+)\}/g, '{$1.clone().into_iter().chain(std::iter::once($2)).collect()}'); + + // 4e: Set difference: pending \\ {id} + rust = rust.replace(/(\S+)\s+\\\\\s+\{([^}]+)\}/g, '{$1.clone().into_iter().filter(|x| x != &$2).collect()}'); + + // 4f: Map access via brackets → bracket indexing (Rust uses &key for HashMap) + for (const mapVar of mapVarOrigNames) { + const rustMapVar = nameMap.get(mapVar) || snakeCase(mapVar); + // Handle self.field_name[expr] or bare field_name[expr] + // Must run BEFORE identifier replacement so original names match + const pattern1 = new RegExp(`(self\\.)?(${escapeRegex(rustMapVar)})\\[([^\\]]+)\\]`, 'g'); + rust = rust.replace(pattern1, '$1$2[&$3]'); + // Also handle original name in brackets (e.g. accounts[...]) + const pattern2 = new RegExp(`(self\\.)?(${escapeRegex(mapVar)})\\[([^\\]]+)\\]`, 'g'); + rust = rust.replace(pattern2, (match, p1, _p2, p3) => { + const prefix = p1 || ''; + return `${prefix}${rustMapVar}[&${p3}]`; + }); + } + + // 4g: .size() → .len() (Rust collections use .len()) + rust = rust.replace(/\.size\(\)/g, '.len()'); + + // 4h: == → keeps == (Rust uses ==), but handle === → == + rust = rust.replace(/\b===\b/g, '=='); + + // 4i: != keeps != in Rust + + // 4j: Clean up trailing standalone comparisons + rust = rust.replace(/(\S+)\s*==\s*$/g, '$1 == $1'); + rust = rust.replace(/(\S+)\s*===\s*$/g, '$1 == $1'); + + return rust.trim(); +} + +// Helpers ------------------------------------------------------------------ + +function memberKey(m: MemberNode): string { + if (m.type === 'action') return `action:${m.name}`; + if (m.type === 'event') return `event:${m.name}`; + if (m.type === 'interface') return `interface:${m.name}`; + if (m.type === 'state') return 'state'; + if (m.type === 'init') return 'init'; + if (m.type === 'provenance') return 'provenance'; + if (m.type === 'bom') return 'bom'; + if (m.type === 'input') return 'input'; + if (m.type === 'output') return 'output'; + return m.type; +} + +function isEmptyStub(m: MemberNode): boolean { + if (m.type === 'state') return m.variables.length === 0; + if (m.type === 'init') return m.assignments.length === 0; + if (m.type === 'action') return m.statements.length === 0; + if (m.type === 'event') return m.fields.length === 0; + if (m.type === 'interface') return m.methods.length === 0; + if (m.type === 'provenance') return m.clauses.length === 0; + if (m.type === 'bom') return !m.compiler && !m.solver && !m.runtime; + return false; +} + +function cleanName(s: string): string { + return s.replace(/,$/, '').trim(); +} + +function cleanExpr(s: string): string { + return s.replace(/,$/, '').trim(); +} + +function snakeCase(s: string): string { + // Convert CamelCase/PascalCase to snake_case + return s + .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2') + .replace(/([a-z\d])([A-Z])/g, '$1_$2') + .replace(/([a-zA-Z])(\d)/g, '$1_$2') + .replace(/[^a-zA-Z0-9_]/g, '_') + .toLowerCase() + .replace(/_+/g, '_') + .replace(/^_|_$/g, ''); +} + +function escapeRegex(s: string): string { + return s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); +} + +function defaultRustValue(rustName: string, typeExpr: any): string { + if (!typeExpr) return 'Default::default()'; // not ideal but a fallback + if (typeExpr.type === 'primitive') { + switch (typeExpr.name) { + case 'Nat': return '0u64'; + case 'Int': return '0i64'; + case 'Real': case 'Number': return '0.0f64'; + case 'Bool': return 'false'; + case 'String': return 'String::new()'; + case 'Bytes': return 'Vec::new()'; + default: return 'Default::default()'; + } + } + if (typeExpr.type === 'list') return 'Vec::new()'; + if (typeExpr.type === 'set') return 'HashSet::new()'; + if (typeExpr.type === 'map') return 'HashMap::new()'; + return 'Default::default()'; +} + +function rustType(t: any, speckName: string = '', enumMap?: Map): string { + if (!t) return '()'; + if (t.type === 'primitive') { + const map: Record = { + Nat: 'u64', Int: 'i64', Real: 'f64', + Bool: 'bool', String: 'String', Bytes: 'Vec', + Number: 'f64', + }; + return map[t.name] || t.name.toLowerCase(); + } + if (t.type === 'list') return `Vec<${rustType(t.elementType, speckName, enumMap)}>`; + if (t.type === 'set') return `HashSet<${rustType(t.elementType, speckName, enumMap)}>`; + if (t.type === 'map') return `HashMap<${rustType(t.keyType, speckName, enumMap)}, ${rustType(t.valueType, speckName, enumMap)}>`; + if (t.type === 'record') { + const fields = t.fields.map((f: any) => { + const name = snakeCase(cleanName(f.name)); + return `pub ${name}: ${rustType(f.type, speckName, enumMap)}`; + }).join(', '); + return `${snakeCase(speckName)}_record { ${fields} }`; + } + if (t.type === 'ident') { + const rawName = cleanName(t.name); + if (enumMap && enumMap.has(rawName)) { + return `${speckName}${rawName}`; + } + if (rawName === 'Account') return 'Account'; + if (rawName === 'Transfer') return 'Transfer'; + if (rawName === 'Replica') return 'Replica'; + if (rawName === 'LogEntry') return 'LogEntry'; + if (rawName === 'Nat') return 'u64'; + if (rawName === 'Int') return 'i64'; + if (rawName === 'Bool') return 'bool'; + if (rawName === 'String') return 'String'; + // Opaque identifiers become type aliases + return rawName; + } + return '()'; +} diff --git a/compiler/src/index.ts b/compiler/src/index.ts index ad93801..ce5bf73 100644 --- a/compiler/src/index.ts +++ b/compiler/src/index.ts @@ -8,6 +8,7 @@ import { generateCycloneDX } from './generators/cyclonedx.js'; import { generateSPDX } from './generators/spdx.js'; import { generateTypeScriptStateMachine } from './generators/typescript-state-machine.js'; import { generateZ3, Z3Options, parseInvariantsFromSource, parseNextFromSource } from './generators/z3.js'; +import { generateRust } from './generators/rust.js'; import fs from 'fs'; import path from 'path'; @@ -49,7 +50,7 @@ async function main() { alias: 't', describe: 'Compilation target', type: 'string', - choices: ['typescript', 'z3', 'all'], + choices: ['typescript', 'z3', 'rust', 'all'], default: 'typescript' as const, }) .option('verify-depth', { @@ -73,7 +74,7 @@ async function main() { const options = { outputDir: argv.outputDir as string, bomFormat: argv.bomFormat as 'cdx' | 'spdx' | 'both', - target: argv.target as 'typescript' | 'z3' | 'all', + target: argv.target as 'typescript' | 'z3' | 'rust' | 'all', verifyDepth: argv.verifyDepth as number, }; @@ -94,8 +95,14 @@ async function main() { // Read raw source for invariant/next parsing that the AST parser doesn't handle yet const rawSource = fs.readFileSync(file, 'utf-8'); - // Always generate provenance (it's the core output) if not z3-only - if (options.target !== 'z3') { + // Generate Rust state machine if target is rust or all + if (options.target === 'rust' || options.target === 'all') { + console.log('\nGenerating Rust state machine...'); + generateRust(ast, options.outputDir); + } + + // Always generate provenance (it's the core output) if not z3-only or rust-only + if (options.target !== 'z3' && options.target !== 'rust') { console.log('\nGenerating provenance graph (PROV-O JSON-LD)...'); generateProvenanceGraph(ast, options.outputDir); } @@ -115,8 +122,8 @@ async function main() { generateZ3(ast, options.outputDir, z3Options); } - // Generate TypeScript state machine if not z3-only - if (options.target !== 'z3') { + // Generate TypeScript state machine if not z3-only or rust-only + if (options.target !== 'z3' && options.target !== 'rust') { console.log('\nGenerating TypeScript state machine...'); generateTypeScriptStateMachine(ast, options.outputDir); diff --git a/compiler/test-output-rust/TigerBeetleLedger/Cargo.toml b/compiler/test-output-rust/TigerBeetleLedger/Cargo.toml new file mode 100644 index 0000000..2c897f4 --- /dev/null +++ b/compiler/test-output-rust/TigerBeetleLedger/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "tiger_beetle_ledger" +version = "0.1.0" +edition = "2021" +description = "Auto-generated Speck state machine: TigerBeetleLedger" + +[dependencies] diff --git a/compiler/test-output-rust/TigerBeetleLedger/src/lib.rs b/compiler/test-output-rust/TigerBeetleLedger/src/lib.rs new file mode 100644 index 0000000..6d9a90e --- /dev/null +++ b/compiler/test-output-rust/TigerBeetleLedger/src/lib.rs @@ -0,0 +1,270 @@ +// Auto-generated by speckl-compile from TigerBeetleLedger +// DO NOT EDIT MANUALLY — regenerate from .speckdl source + +use std::collections::{HashMap, HashSet}; + +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum TigerBeetleLedgerState { + Open, + Closed, +} + +impl std::fmt::Display for TigerBeetleLedgerState { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + TigerBeetleLedgerState::Open => write!(f, "open"), + TigerBeetleLedgerState::Closed => write!(f, "closed"), + } + } +} + + + +/// Speck state machine: TigerBeetleLedger +/// Auto-generated Rust state machine from SpeckDL specification. +#[derive(Debug, Clone)] +pub struct TigerBeetleLedgerMachine { + pub accounts: HashMap, + pub transfers: HashMap, + pub pending: HashSet, + pub replica_state: HashMap, + pub log: Vec, + pub commit_index: u64, + pub leader: u64, + /// Decision log of events emitted during execution + pub decision_log: Vec, +} + +impl TigerBeetleLedgerMachine { + /// Create a new TigerBeetleLedger machine in its initial state. + pub fn new() -> Self { + Self { + accounts: HashMap::new(), + transfers: HashMap::new(), + pending: HashSet::new(), + replica_state: HashMap::new(), + log: Vec::new(), + commit_index: 0u64, + leader: 0u64, + decision_log: Vec::new(), + } + } +} + +// Action methods — each returns Result with guard checking +impl TigerBeetleLedgerMachine { + /// Execute action: CreateTransfer + pub fn create_transfer(&mut self, t: Transfer) -> Result<(), String> { + // precondition: t.id notIn transfers.keys + if !(!self.transfers.contains_key(&t.id)) { + return Err(format!("Precondition failed: {}", "t.id notIn transfers.keys")); + } + // precondition: t.from in accounts.keys + if !(self.accounts.contains_key(&t.from)) { + return Err(format!("Precondition failed: {}", "t.from in accounts.keys")); + } + // precondition: t.to in accounts.keys + if !(self.accounts.contains_key(&t.to)) { + return Err(format!("Precondition failed: {}", "t.to in accounts.keys")); + } + // precondition: t.from != t.to + if !(t.from != t.to) { + return Err(format!("Precondition failed: {}", "t.from != t.to")); + } + // precondition: accounts[t.from].balance >= t.amount || accounts[t.from].flags.allows_overdraft + if !(self.accounts[&&t.from].balance >= t.amount || self.accounts[&&t.from].flags.allows_overdraft) { + return Err(format!("Precondition failed: {}", "accounts[t.from].balance >= t.amount || accounts[t.from].flags.allows_overdraft")); + } + // postcondition: transfers[t.id] == t + if !(self.transfers[&&t.id] == t) { + return Err(format!("Postcondition failed: {}", "transfers[t.id] == t")); + } + // postcondition: pending == pending union {t.id} + if !(self.pending == {self.pending.clone().into_iter().chain(std::iter::once(t.id)).collect()}) { + return Err(format!("Postcondition failed: {}", "pending == pending union {t.id}")); + } + // postcondition: accounts[t.from].debits_pending == old(accounts[t.from].debits_pending) + t.amount + if !(self.accounts[&&t.from].debits_pending == self.accounts[&&t.from].debits_pending + t.amount) { + return Err(format!("Postcondition failed: {}", "accounts[t.from].debits_pending == old(accounts[t.from].debits_pending) + t.amount")); + } + // postcondition: accounts[t.to].credits_pending == old(accounts[t.to].credits_pending) + t.amount + if !(self.accounts[&&t.to].credits_pending == self.accounts[&&t.to].credits_pending + t.amount) { + return Err(format!("Postcondition failed: {}", "accounts[t.to].credits_pending == old(accounts[t.to].credits_pending) + t.amount")); + } + } + + /// Execute action: CommitTransfer + pub fn commit_transfer(&mut self, id: u64) -> Result<(), String> { + // precondition: id in pending + if !(self.pending.contains(&id)) { + return Err(format!("Precondition failed: {}", "id in pending")); + } + // precondition: id in transfers.keys + if !(self.transfers.contains_key(&id)) { + return Err(format!("Precondition failed: {}", "id in transfers.keys")); + } + // precondition: transfers[id].pending == true + if !(self.transfers[&&id].pending == true) { + return Err(format!("Precondition failed: {}", "transfers[id].pending == true")); + } + // postcondition: pending == pending \\ {id} + if !(self.pending == {self.pending.clone().into_iter().filter(|x| x != &id).collect()}) { + return Err(format!("Postcondition failed: {}", "pending == pending \\\\ {id}")); + } + // postcondition: transfers[id].pending == false + if !(self.transfers[&&id].pending == false) { + return Err(format!("Postcondition failed: {}", "transfers[id].pending == false")); + } + // postcondition: transfers[id].posted == true + if !(self.transfers[&&id].posted == true) { + return Err(format!("Postcondition failed: {}", "transfers[id].posted == true")); + } + // postcondition: accounts[transfers[id].from].debits_posted == + if !(self.accounts[&&self.transfers[&&id].from].debits_posted == self.accounts[&&self.transfers[&&id].from].debits_posted) { + return Err(format!("Postcondition failed: {}", "accounts[transfers[id].from].debits_posted ==")); + } + // postcondition: accounts[transfers[id].to].credits_posted == + if !(self.accounts[&&self.transfers[&&id].to].credits_posted == self.accounts[&&self.transfers[&&id].to].credits_posted) { + return Err(format!("Postcondition failed: {}", "accounts[transfers[id].to].credits_posted ==")); + } + // postcondition: accounts[transfers[id].from].debits_pending == + if !(self.accounts[&&self.transfers[&&id].from].debits_pending == self.accounts[&&self.transfers[&&id].from].debits_pending) { + return Err(format!("Postcondition failed: {}", "accounts[transfers[id].from].debits_pending ==")); + } + // postcondition: accounts[transfers[id].to].credits_pending == + if !(self.accounts[&&self.transfers[&&id].to].credits_pending == self.accounts[&&self.transfers[&&id].to].credits_pending) { + return Err(format!("Postcondition failed: {}", "accounts[transfers[id].to].credits_pending ==")); + } + } + + /// Execute action: VoidTransfer + pub fn void_transfer(&mut self, id: u64) -> Result<(), String> { + // precondition: id in pending + if !(self.pending.contains(&id)) { + return Err(format!("Precondition failed: {}", "id in pending")); + } + // precondition: id in transfers.keys + if !(self.transfers.contains_key(&id)) { + return Err(format!("Precondition failed: {}", "id in transfers.keys")); + } + // precondition: transfers[id].pending == true + if !(self.transfers[&&id].pending == true) { + return Err(format!("Precondition failed: {}", "transfers[id].pending == true")); + } + // postcondition: pending == pending \\ {id} + if !(self.pending == {self.pending.clone().into_iter().filter(|x| x != &id).collect()}) { + return Err(format!("Postcondition failed: {}", "pending == pending \\\\ {id}")); + } + // postcondition: transfers[id].pending == false + if !(self.transfers[&&id].pending == false) { + return Err(format!("Postcondition failed: {}", "transfers[id].pending == false")); + } + // postcondition: transfers[id].voided == true + if !(self.transfers[&&id].voided == true) { + return Err(format!("Postcondition failed: {}", "transfers[id].voided == true")); + } + // postcondition: accounts[transfers[id].from].debits_pending == + if !(self.accounts[&&self.transfers[&&id].from].debits_pending == self.accounts[&&self.transfers[&&id].from].debits_pending) { + return Err(format!("Postcondition failed: {}", "accounts[transfers[id].from].debits_pending ==")); + } + // postcondition: accounts[transfers[id].to].credits_pending == + if !(self.accounts[&&self.transfers[&&id].to].credits_pending == self.accounts[&&self.transfers[&&id].to].credits_pending) { + return Err(format!("Postcondition failed: {}", "accounts[transfers[id].to].credits_pending ==")); + } + } + + /// Execute action: PostTransfer + pub fn post_transfer(&mut self, t: Transfer) -> Result<(), String> { + // precondition: t.id notIn transfers.keys + if !(!self.transfers.contains_key(&t.id)) { + return Err(format!("Precondition failed: {}", "t.id notIn transfers.keys")); + } + // precondition: t.from in accounts.keys + if !(self.accounts.contains_key(&t.from)) { + return Err(format!("Precondition failed: {}", "t.from in accounts.keys")); + } + // precondition: t.to in accounts.keys + if !(self.accounts.contains_key(&t.to)) { + return Err(format!("Precondition failed: {}", "t.to in accounts.keys")); + } + // precondition: t.from != t.to + if !(t.from != t.to) { + return Err(format!("Precondition failed: {}", "t.from != t.to")); + } + // precondition: accounts[t.from].balance >= t.amount || accounts[t.from].flags.allows_overdraft + if !(self.accounts[&&t.from].balance >= t.amount || self.accounts[&&t.from].flags.allows_overdraft) { + return Err(format!("Precondition failed: {}", "accounts[t.from].balance >= t.amount || accounts[t.from].flags.allows_overdraft")); + } + // postcondition: transfers[t.id] == { ...t, pending: false, posted: true, voided: false } + if !(self.transfers[&&t.id] == { ...t, self.pending: false, posted: true, voided: false }) { + return Err(format!("Postcondition failed: {}", "transfers[t.id] == { ...t, pending: false, posted: true, voided: false }")); + } + // postcondition: accounts[t.from].debits_posted == old(accounts[t.from].debits_posted) + t.amount + if !(self.accounts[&&t.from].debits_posted == self.accounts[&&t.from].debits_posted + t.amount) { + return Err(format!("Postcondition failed: {}", "accounts[t.from].debits_posted == old(accounts[t.from].debits_posted) + t.amount")); + } + // postcondition: accounts[t.to].credits_posted == old(accounts[t.to].credits_posted) + t.amount + if !(self.accounts[&&t.to].credits_posted == self.accounts[&&t.to].credits_posted + t.amount) { + return Err(format!("Postcondition failed: {}", "accounts[t.to].credits_posted == old(accounts[t.to].credits_posted) + t.amount")); + } + } + + /// Execute action: BecomeLeader + pub fn become_leader(&mut self, replica: u64, term: u64) -> Result<(), String> { + // precondition: replica in replicaState.keys + if !(self.replica_state.contains_key(&replica)) { + return Err(format!("Precondition failed: {}", "replica in replicaState.keys")); + } + // precondition: replicaState[replica].role == "candidate" + if !(self.replica_state[&replica].role == "candidate") { + return Err(format!("Precondition failed: {}", "replicaState[replica].role == \"candidate\"")); + } + // precondition: replicaState[replica].currentTerm < term + if !(self.replica_state[&replica].currentTerm < term) { + return Err(format!("Precondition failed: {}", "replicaState[replica].currentTerm < term")); + } + // postcondition: leader == replica + if !(self.leader == replica) { + return Err(format!("Postcondition failed: {}", "leader == replica")); + } + // postcondition: replicaState[replica].role == "leader" + if !(self.replica_state[&replica].role == "self.leader") { + return Err(format!("Postcondition failed: {}", "replicaState[replica].role == \"leader\"")); + } + // postcondition: replicaState[replica].currentTerm == term + if !(self.replica_state[&replica].currentTerm == term) { + return Err(format!("Postcondition failed: {}", "replicaState[replica].currentTerm == term")); + } + } + + /// Execute action: AppendEntry + pub fn append_entry(&mut self, entry: LogEntry, term: u64) -> Result<(), String> { + // precondition: entry.index == length(log) + 1 + if !(entry.index == self.log.len() + 1) { + return Err(format!("Precondition failed: {}", "entry.index == length(log) + 1")); + } + // precondition: term >= commitIndex + if !(term >= self.commit_index) { + return Err(format!("Precondition failed: {}", "term >= commitIndex")); + } + // postcondition: log == append(log, entry) + if !(self.log == {self.log.push(entry); self.log} /* append */) { + return Err(format!("Postcondition failed: {}", "log == append(log, entry)")); + } + // postcondition: commitIndex == entry.index + if !(self.commit_index == entry.index) { + return Err(format!("Postcondition failed: {}", "commitIndex == entry.index")); + } + } +} + + +// Temporal verification stubs +impl TigerBeetleLedgerMachine { + /// V1: Always(AccountBalanceInvariant) + pub fn verify_1(&self) -> bool { + // TODO: Model-check or monitor + // Temporal: Always(AccountBalanceInvariant) + true + } +} diff --git a/compiler/test-output/RetryHandler.prov.jsonld b/compiler/test-output/RetryHandler.prov.jsonld index 0e714ff..40ab965 100644 --- a/compiler/test-output/RetryHandler.prov.jsonld +++ b/compiler/test-output/RetryHandler.prov.jsonld @@ -12,7 +12,7 @@ "@type": "prov:Generation", "prov:activity": { "@type": "prov:Activity", - "prov:startTime": "2026-05-10T06:07:50.697Z" + "prov:startTime": "2026-05-10T06:24:31.493Z" } }, "rdfs:label": "RetryHandler", diff --git a/compiler/test-output/RetryHandler.specbom.cdx.json b/compiler/test-output/RetryHandler.specbom.cdx.json index 632fb4f..09a9a23 100644 --- a/compiler/test-output/RetryHandler.specbom.cdx.json +++ b/compiler/test-output/RetryHandler.specbom.cdx.json @@ -38,7 +38,7 @@ "name": "Scott Scoble", "email": "scott@scoble.me" }, - "timestamp": "2026-05-10T06:07:50.700Z" + "timestamp": "2026-05-10T06:24:31.495Z" }, { "subject": "speck:RetryHandler", @@ -53,7 +53,7 @@ "name": "Speckl Compiler", "email": "compiler@speckl.scoble.me" }, - "timestamp": "2026-05-10T06:07:50.700Z" + "timestamp": "2026-05-10T06:24:31.495Z" }, { "subject": "speck:RetryHandler", @@ -68,7 +68,7 @@ "name": "Speckl Compiler", "email": "compiler@speckl.scoble.me" }, - "timestamp": "2026-05-10T06:07:50.700Z" + "timestamp": "2026-05-10T06:24:31.495Z" } ] } \ No newline at end of file diff --git a/compiler/test-output/RetryHandler.specbom.spdx.json b/compiler/test-output/RetryHandler.specbom.spdx.json index 0a6f935..292ffa7 100644 --- a/compiler/test-output/RetryHandler.specbom.spdx.json +++ b/compiler/test-output/RetryHandler.specbom.spdx.json @@ -13,7 +13,7 @@ "spdxVersion": "3.0.1", "dataLicense": "CC0-1.0", "creationInfo": { - "created": "2026-05-10T06:07:50.702Z", + "created": "2026-05-10T06:24:31.496Z", "createdBy": [ "Organization: Speckl", "tool: speckl-compile-0.2.0" @@ -27,7 +27,7 @@ "@type": "spdx:Tool", "name": "speckl-compile" }, - "timestamp": "2026-05-10T06:07:50.702Z", + "timestamp": "2026-05-10T06:24:31.496Z", "comment": "Review type: manual" } ]