@czap/canonical - npm Package Compare versions

Comparing version 0.3.1 to 0.4.0

README.md

+# @czap/canonical
+
+The sync bytes kernel — deterministic CBOR encoding, FNV-1a content labels, and addressed digests, with no Effect runtime and no `@czap/core` graph behind it.
+
+> You usually don't install this directly — `@czap/core` re-exports these surfaces at its public boundary, so app authors who already depend on core get them for free. Reach for `@czap/canonical` standalone only when core is too heavy: an upstream factory or WASM-side path that needs stable bytes without pulling the full graph.
+
+## Install
+
+```bash
+pnpm add @czap/core # brings @czap/canonical with it
+```
+
+If you do need the kernel standalone, install it directly: `pnpm add @czap/canonical`. Its only third-party dependency is `@noble/hashes` (for the sha256/blake3 digests) — no Effect, no peer setup.
+
+## 30 seconds
+
+```ts
+import { CanonicalCbor, AddressedDigest, fnv1a } from '@czap/canonical';
+
+// Key-permuted objects encode to byte-identical output (RFC 8949 §4.2.1).
+const bytes = CanonicalCbor.encode({ title: 'hello', n: 42 });
+
+const digest = AddressedDigest.of(bytes);
+console.log(digest.display_id);       // 'fnv1a:xxxxxxxx' — sync identity label
+console.log(digest.integrity_digest); // 'sha256:...'      — cryptographic digest
+console.log(digest.algo);             // 'sha256' (pass 'blake3' for the blake3 digest)
+
+console.log(fnv1a('any string'));     // 'fnv1a:xxxxxxxx'
+```
+
+`CanonicalCbor.encode` produces a stable `Uint8Array` for any JSON-shaped value; `decode` is its strict inverse, accepting only the canonical subset the encoder emits. `AddressedDigest.of` pairs a sync FNV-1a `display_id` with a cryptographic `integrity_digest` over the very same bytes, so identity and integrity can never disagree.
+
+## Where it sits
+
+This package is a standalone leaf — it carries no `@czap/core`, no Effect, and no spine imports, which is exactly why upstream and WASM-side code can address content without dragging in the full graph. `@czap/core` re-anchors `ContentAddress` / `IntegrityDigest` to spine brands at its own boundary (ADR-0012); here they are kept local. See the [package surfaces map](https://github.com/heyoub/LiteShip/blob/main/PACKAGE-SURFACES.md) for the full layout.
+
+## If encoding throws
+
+Only the JSON-shaped value subset encodes: numbers, strings, booleans, `null`, `Uint8Array`, arrays, and plain objects. Functions, symbols, `bigint`, `Map`, `Set`, and `Date` raise an `UnsupportedError` rather than emit ambiguous bytes — determinism is the whole point. Plain-object properties whose value is `undefined` are skipped, matching JSON semantics.
+
+## Docs
+
+- [Getting started](https://github.com/heyoub/LiteShip/blob/main/GETTING-STARTED.md)
+- [ADR-0013 — the canonical package](https://github.com/heyoub/LiteShip/blob/main/docs/adr/0013-canonical-package.md) — why the bytes kernel is a standalone leaf
+- [Glossary](https://github.com/heyoub/LiteShip/blob/main/GLOSSARY.md) — the vocabulary used above
+- [API reference](https://github.com/heyoub/LiteShip/tree/main/docs/api/canonical/src/) — generated from source
+
+---
+
+Part of [LiteShip](https://github.com/heyoub/LiteShip#readme) — powered by the CZAP engine (Content-Zoned Adaptive Projection), distributed as `@czap/*` packages.

dist/brands.d.ts

@@ -8,2 +8,7 @@ /**
  *
+ * The constructors are VALIDATING smart constructors (parse-don't-validate):
+ * each throws `ValidationError` on input that does not match the brand's
+ * real runtime shape, so a branded value is a proof of that shape. `@czap/error`
+ * is a zero-dep foundational package, so importing it here introduces no cycle.
+ *
  * @module
@@ -15,6 +20,16 @@ */
 export type IntegrityDigest = `sha256:${string}` | `blake3:${string}`;
-/** Wrap a plain string as a {@link ContentAddress}. */
+/** Type guard: `s` is a syntactically valid {@link ContentAddress}. */
+export declare const isContentAddress: (s: string) => s is ContentAddress;
+/** Type guard: `s` is a syntactically valid {@link IntegrityDigest}. */
+export declare const isIntegrityDigest: (s: string) => s is IntegrityDigest;
+/**
+ * Parse a plain string into a {@link ContentAddress}.
+ * @throws `ValidationError` when `value` is not `fnv1a:` + 8 lowercase hex.
+ */
 export declare const ContentAddress: (value: string) => ContentAddress;
-/** Wrap a plain string as an {@link IntegrityDigest}. */
+/**
+ * Parse a plain string into an {@link IntegrityDigest}.
+ * @throws `ValidationError` when `value` is not `sha256:`/`blake3:` + 64 lowercase hex.
+ */
 export declare const IntegrityDigest: (value: string) => IntegrityDigest;
 //# sourceMappingURL=brands.d.ts.map

dist/brands.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"brands.d.ts","sourceRoot":"","sources":["../src/brands.ts"],"names":[],"mappings":"AAAA;;;;;;;;GAQG;AAEH,uEAAuE;AACvE,MAAM,MAAM,cAAc,GAAG,SAAS,MAAM,EAAE,CAAC;AAE/C,kFAAkF;AAClF,MAAM,MAAM,eAAe,GAAG,UAAU,MAAM,EAAE,GAAG,UAAU,MAAM,EAAE,CAAC;AAEtE,uDAAuD;AACvD,eAAO,MAAM,cAAc,GAAI,OAAO,MAAM,KAAG,cAAyC,CAAC;AAEzF,yDAAyD;AACzD,eAAO,MAAM,eAAe,GAAI,OAAO,MAAM,KAAG,eAA2C,CAAC"}
+{"version":3,"file":"brands.d.ts","sourceRoot":"","sources":["../src/brands.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;GAaG;AAIH,uEAAuE;AACvE,MAAM,MAAM,cAAc,GAAG,SAAS,MAAM,EAAE,CAAC;AAE/C,kFAAkF;AAClF,MAAM,MAAM,eAAe,GAAG,UAAU,MAAM,EAAE,GAAG,UAAU,MAAM,EAAE,CAAC;AAgBtE,uEAAuE;AACvE,eAAO,MAAM,gBAAgB,GAAI,GAAG,MAAM,KAAG,CAAC,IAAI,cAA4C,CAAC;AAE/F,wEAAwE;AACxE,eAAO,MAAM,iBAAiB,GAAI,GAAG,MAAM,KAAG,CAAC,IAAI,eAA8C,CAAC;AAElG;;;GAGG;AACH,eAAO,MAAM,cAAc,GAAI,OAAO,MAAM,KAAG,cAK9C,CAAC;AAEF;;;GAGG;AACH,eAAO,MAAM,eAAe,GAAI,OAAO,MAAM,KAAG,eAQ/C,CAAC"}

dist/brands.js

@@ -8,8 +8,46 @@ /**
  *
+ * The constructors are VALIDATING smart constructors (parse-don't-validate):
+ * each throws `ValidationError` on input that does not match the brand's
+ * real runtime shape, so a branded value is a proof of that shape. `@czap/error`
+ * is a zero-dep foundational package, so importing it here introduces no cycle.
+ *
  * @module
  */
-/** Wrap a plain string as a {@link ContentAddress}. */
-export const ContentAddress = (value) => value;
-/** Wrap a plain string as an {@link IntegrityDigest}. */
-export const IntegrityDigest = (value) => value;
+import { ValidationError } from '@czap/error';
+/**
+ * A {@link ContentAddress} is the `fnv1a:` prefix followed by exactly 8 lowercase
+ * hex digits — the full width of the FNV-1a 32-bit output ({@link fnv.ts} pads to
+ * 8 via `(h >>> 0).toString(16).padStart(8, '0')`).
+ */
+const CONTENT_ADDRESS_RE = /^fnv1a:[0-9a-f]{8}$/;
+/**
+ * An {@link IntegrityDigest} is `sha256:` or `blake3:` followed by exactly 64
+ * lowercase hex digits — the full width of a 256-bit cryptographic digest
+ * (ADR-0011). Only these two algorithms are sanctioned.
+ */
+const INTEGRITY_DIGEST_RE = /^(?:sha256|blake3):[0-9a-f]{64}$/;
+/** Type guard: `s` is a syntactically valid {@link ContentAddress}. */
+export const isContentAddress = (s) => CONTENT_ADDRESS_RE.test(s);
+/** Type guard: `s` is a syntactically valid {@link IntegrityDigest}. */
+export const isIntegrityDigest = (s) => INTEGRITY_DIGEST_RE.test(s);
+/**
+ * Parse a plain string into a {@link ContentAddress}.
+ * @throws `ValidationError` when `value` is not `fnv1a:` + 8 lowercase hex.
+ */
+export const ContentAddress = (value) => {
+    if (!isContentAddress(value)) {
+        throw ValidationError('ContentAddress', `expected fnv1a:<8 lowercase hex>, got ${JSON.stringify(value)}`);
+    }
+    return value;
+};
+/**
+ * Parse a plain string into an {@link IntegrityDigest}.
+ * @throws `ValidationError` when `value` is not `sha256:`/`blake3:` + 64 lowercase hex.
+ */
+export const IntegrityDigest = (value) => {
+    if (!isIntegrityDigest(value)) {
+        throw ValidationError('IntegrityDigest', `expected (sha256|blake3):<64 lowercase hex>, got ${JSON.stringify(value)}`);
+    }
+    return value;
+};
 //# sourceMappingURL=brands.js.map

dist/brands.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"brands.js","sourceRoot":"","sources":["../src/brands.ts"],"names":[],"mappings":"AAAA;;;;;;;;GAQG;AAQH,uDAAuD;AACvD,MAAM,CAAC,MAAM,cAAc,GAAG,CAAC,KAAa,EAAkB,EAAE,CAAC,KAAuB,CAAC;AAEzF,yDAAyD;AACzD,MAAM,CAAC,MAAM,eAAe,GAAG,CAAC,KAAa,EAAmB,EAAE,CAAC,KAAwB,CAAC"}
+{"version":3,"file":"brands.js","sourceRoot":"","sources":["../src/brands.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;GAaG;AAEH,OAAO,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AAQ9C;;;;GAIG;AACH,MAAM,kBAAkB,GAAG,qBAAqB,CAAC;AAEjD;;;;GAIG;AACH,MAAM,mBAAmB,GAAG,kCAAkC,CAAC;AAE/D,uEAAuE;AACvE,MAAM,CAAC,MAAM,gBAAgB,GAAG,CAAC,CAAS,EAAuB,EAAE,CAAC,kBAAkB,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;AAE/F,wEAAwE;AACxE,MAAM,CAAC,MAAM,iBAAiB,GAAG,CAAC,CAAS,EAAwB,EAAE,CAAC,mBAAmB,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC;AAElG;;;GAGG;AACH,MAAM,CAAC,MAAM,cAAc,GAAG,CAAC,KAAa,EAAkB,EAAE;IAC9D,IAAI,CAAC,gBAAgB,CAAC,KAAK,CAAC,EAAE,CAAC;QAC7B,MAAM,eAAe,CAAC,gBAAgB,EAAE,yCAAyC,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;IAC5G,CAAC;IACD,OAAO,KAAK,CAAC;AACf,CAAC,CAAC;AAEF;;;GAGG;AACH,MAAM,CAAC,MAAM,eAAe,GAAG,CAAC,KAAa,EAAmB,EAAE;IAChE,IAAI,CAAC,iBAAiB,CAAC,KAAK,CAAC,EAAE,CAAC;QAC9B,MAAM,eAAe,CACnB,iBAAiB,EACjB,oDAAoD,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,EAAE,CAC5E,CAAC;IACJ,CAAC;IACD,OAAO,KAAK,CAAC;AACf,CAAC,CAAC"}

dist/cbor-decode.d.ts

@@ -6,4 +6,5 @@ /**
  * encoder (`./cbor.ts`) emits, and rejects everything else with a typed
- * {@link CborDecodeError}. This is the reader the encoder's bytes have
- * lacked: a persisted DocumentGraph (content-addressed via the encoder)
+ * `ParseError` (source `'cbor'`, `code` = the reason discriminant,
+ * `offset` = the byte position). This is the reader the encoder's bytes
+ * have lacked: a persisted DocumentGraph (content-addressed via the encoder)
  * can now be re-read without a third-party CBOR library that would accept
@@ -21,3 +22,3 @@ * non-canonical encodings.
  *
- * Rejected (typed `CborDecodeError`):
+ * Rejected (typed `ParseError`, `code` carries the reason):
  * - non-shortest integer/length encodings (`'non_canonical'`).
@@ -33,11 +34,2 @@ * - float16 (ai=25) and float32 (ai=26) in major 7 (`'non_canonical'`).
  */
-/** Reason a {@link CborDecodeError} was raised. */
-export type CborDecodeErrorReason = 'non_canonical' | 'malformed' | 'unexpected_eof';
-/** Typed error for any input outside the canonical subset. */
-export declare class CborDecodeError extends Error {
-    readonly reason: CborDecodeErrorReason;
-    /** Byte offset where decoding failed (best effort). */
-    readonly offset: number;
-    constructor(reason: CborDecodeErrorReason, message: string, offset: number);
-}
 /**
@@ -48,7 +40,8 @@ * Decode a canonical CBOR byte sequence produced by {@link CanonicalCbor.encode}.
  * encoder emits (non-shortest forms, float16/32, indefinite lengths,
- * out-of-order map keys, trailing bytes) raises a typed {@link CborDecodeError}.
+ * out-of-order map keys, trailing bytes) raises a typed `ParseError`
+ * (source `'cbor'`, `code` = the reason discriminant).
  *
- * @throws {CborDecodeError}
+ * @throws A `@czap/error` `ParseError` (`source` `'cbor'`).
  */
 export declare function decode(bytes: Uint8Array): unknown;
 //# sourceMappingURL=cbor-decode.d.ts.map

dist/cbor-decode.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"cbor-decode.d.ts","sourceRoot":"","sources":["../src/cbor-decode.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA6BG;AAEH,mDAAmD;AACnD,MAAM,MAAM,qBAAqB,GAAG,eAAe,GAAG,WAAW,GAAG,gBAAgB,CAAC;AAErF,8DAA8D;AAC9D,qBAAa,eAAgB,SAAQ,KAAK;IACxC,QAAQ,CAAC,MAAM,EAAE,qBAAqB,CAAC;IACvC,uDAAuD;IACvD,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;gBACZ,MAAM,EAAE,qBAAqB,EAAE,OAAO,EAAE,MAAM,EAAE,MAAM,EAAE,MAAM;CAM3E;AAkOD;;;;;;;;GAQG;AACH,wBAAgB,MAAM,CAAC,KAAK,EAAE,UAAU,GAAG,OAAO,CAUjD"}
+{"version":3,"file":"cbor-decode.d.ts","sourceRoot":"","sources":["../src/cbor-decode.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;GA8BG;AAuOH;;;;;;;;;GASG;AACH,wBAAgB,MAAM,CAAC,KAAK,EAAE,UAAU,GAAG,OAAO,CAUjD"}

dist/cbor-decode.js

@@ -6,4 +6,5 @@ /**
  * encoder (`./cbor.ts`) emits, and rejects everything else with a typed
- * {@link CborDecodeError}. This is the reader the encoder's bytes have
- * lacked: a persisted DocumentGraph (content-addressed via the encoder)
+ * `ParseError` (source `'cbor'`, `code` = the reason discriminant,
+ * `offset` = the byte position). This is the reader the encoder's bytes
+ * have lacked: a persisted DocumentGraph (content-addressed via the encoder)
  * can now be re-read without a third-party CBOR library that would accept
@@ -21,3 +22,3 @@ * non-canonical encodings.
  *
- * Rejected (typed `CborDecodeError`):
+ * Rejected (typed `ParseError`, `code` carries the reason):
  * - non-shortest integer/length encodings (`'non_canonical'`).
@@ -33,13 +34,6 @@ * - float16 (ai=25) and float32 (ai=26) in major 7 (`'non_canonical'`).
  */
-/** Typed error for any input outside the canonical subset. */
-export class CborDecodeError extends Error {
-    reason;
-    /** Byte offset where decoding failed (best effort). */
-    offset;
-    constructor(reason, message, offset) {
-        super(`CborDecodeError[${reason}] @${offset}: ${message}`);
-        this.name = 'CborDecodeError';
-        this.reason = reason;
-        this.offset = offset;
-    }
+import { ParseError } from '@czap/error';
+/** Raise a canonical-CBOR `ParseError`: `code` = reason, `offset` = byte position. */
+function fail(reason, message, offset) {
+    throw ParseError('cbor', message, { code: reason, offset });
 }
@@ -66,3 +60,3 @@ const textDecoder = new TextDecoder('utf-8', { fatal: true });
         if (this.pos + n > this.bytes.length) {
-            throw new CborDecodeError('unexpected_eof', `need ${n} byte(s) but only ${this.bytes.length - this.pos} remain`, this.pos);
+            fail('unexpected_eof', `need ${n} byte(s) but only ${this.bytes.length - this.pos} remain`, this.pos);
         }
@@ -95,3 +89,3 @@ }
         if (v < 24) {
-            throw new CborDecodeError('non_canonical', `1-byte argument ${v} should be inlined`, headOffset);
+            fail('non_canonical', `1-byte argument ${v} should be inlined`, headOffset);
         }
@@ -105,3 +99,3 @@ return v;
         if (v < 0x100) {
-            throw new CborDecodeError('non_canonical', `2-byte argument ${v} should use a shorter head`, headOffset);
+            fail('non_canonical', `2-byte argument ${v} should use a shorter head`, headOffset);
         }
@@ -117,3 +111,3 @@ return v;
         if (v < 0x10000) {
-            throw new CborDecodeError('non_canonical', `4-byte argument ${v} should use a shorter head`, headOffset);
+            fail('non_canonical', `4-byte argument ${v} should use a shorter head`, headOffset);
         }
@@ -127,6 +121,6 @@ return v;
         if (hi === 0 && lo < 0x100000000) {
-            throw new CborDecodeError('non_canonical', `8-byte argument ${v} should use a shorter head`, headOffset);
+            fail('non_canonical', `8-byte argument ${v} should use a shorter head`, headOffset);
         }
         if (!Number.isSafeInteger(v)) {
-            throw new CborDecodeError('malformed', `integer ${v} exceeds the encoder's safe-integer range`, headOffset);
+            fail('malformed', `integer ${v} exceeds the encoder's safe-integer range`, headOffset);
         }
@@ -137,5 +131,5 @@ return v;
     if (ai === 31) {
-        throw new CborDecodeError('non_canonical', 'indefinite-length items are not canonical', headOffset);
+        fail('non_canonical', 'indefinite-length items are not canonical', headOffset);
     }
-    throw new CborDecodeError('malformed', `reserved additional-info value ${ai}`, headOffset);
+    fail('malformed', `reserved additional-info value ${ai}`, headOffset);
 }
@@ -161,3 +155,3 @@ function decodeFloat64(r) {
             if (!Number.isSafeInteger(v)) {
-                throw new CborDecodeError('malformed', `negative integer ${v} out of safe range`, headOffset);
+                fail('malformed', `negative integer ${v} out of safe range`, headOffset);
             }
@@ -180,3 +174,3 @@ return v;
             catch {
-                throw new CborDecodeError('malformed', 'invalid UTF-8 in text string', headOffset);
+                fail('malformed', 'invalid UTF-8 in text string', headOffset);
             }
@@ -203,3 +197,3 @@ }
                 if (keyHead === undefined || keyHead >> 5 !== 3) {
-                    throw new CborDecodeError('malformed', 'map keys must be text strings', keyOffset);
+                    fail('malformed', 'map keys must be text strings', keyOffset);
                 }
@@ -212,6 +206,6 @@ const keyStart = r.pos;
                     if (cmp > 0) {
-                        throw new CborDecodeError('non_canonical', 'map keys are not in canonical byte order', keyOffset);
+                        fail('non_canonical', 'map keys are not in canonical byte order', keyOffset);
                     }
                     if (cmp === 0) {
-                        throw new CborDecodeError('non_canonical', 'duplicate map key', keyOffset);
+                        fail('non_canonical', 'duplicate map key', keyOffset);
                     }
@@ -246,14 +240,14 @@ }
                 case 25:
-                    throw new CborDecodeError('non_canonical', 'float16 is not in the canonical subset', headOffset);
+                    return fail('non_canonical', 'float16 is not in the canonical subset', headOffset);
                 case 26:
-                    throw new CborDecodeError('non_canonical', 'float32 is not in the canonical subset', headOffset);
+                    return fail('non_canonical', 'float32 is not in the canonical subset', headOffset);
                 case 27:
                     return decodeFloat64(r);
                 case 31:
-                    throw new CborDecodeError('non_canonical', 'indefinite-length break is not canonical', headOffset);
+                    return fail('non_canonical', 'indefinite-length break is not canonical', headOffset);
                 case 23:
                     // `undefined` (simple 23) is never emitted — encoder coerces it to null.
-                    throw new CborDecodeError('non_canonical', 'simple value `undefined` is not in the canonical subset', headOffset);
+                    return fail('non_canonical', 'simple value `undefined` is not in the canonical subset', headOffset);
                 default:
-                    throw new CborDecodeError('malformed', `unsupported simple/float value (ai=${ai})`, headOffset);
+                    return fail('malformed', `unsupported simple/float value (ai=${ai})`, headOffset);
             }
@@ -263,3 +257,3 @@ }
             // Major 6 (tags) is not part of the encoder's output.
-            throw new CborDecodeError('malformed', `unsupported major type ${major}`, headOffset);
+            return fail('malformed', `unsupported major type ${major}`, headOffset);
     }
@@ -272,9 +266,10 @@ }
  * encoder emits (non-shortest forms, float16/32, indefinite lengths,
- * out-of-order map keys, trailing bytes) raises a typed {@link CborDecodeError}.
+ * out-of-order map keys, trailing bytes) raises a typed `ParseError`
+ * (source `'cbor'`, `code` = the reason discriminant).
  *
- * @throws {CborDecodeError}
+ * @throws A `@czap/error` `ParseError` (`source` `'cbor'`).
  */
 export function decode(bytes) {
     if (!(bytes instanceof Uint8Array)) {
-        throw new CborDecodeError('malformed', 'input must be a Uint8Array', 0);
+        fail('malformed', 'input must be a Uint8Array', 0);
     }
@@ -284,3 +279,3 @@ const r = new Reader(bytes);
     if (r.pos !== bytes.length) {
-        throw new CborDecodeError('malformed', `trailing ${bytes.length - r.pos} byte(s) after top-level item`, r.pos);
+        fail('malformed', `trailing ${bytes.length - r.pos} byte(s) after top-level item`, r.pos);
     }
@@ -287,0 +282,0 @@ return value;

dist/cbor-decode.js.map

@@ -1,1 +0,1 @@
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dist/cbor.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"cbor.d.ts","sourceRoot":"","sources":["../src/cbor.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;GAuBG;AAqKH,2DAA2D;AAC3D,eAAO,MAAM,aAAa;6BA1BF,OAAO,KAAG,UAAU;CA0Ba,CAAC;AAE1D,MAAM,CAAC,OAAO,WAAW,aAAa,CAAC;IACrC,wDAAwD;IACxD,KAAY,OAAO,GAAG,UAAU,CAAC;CAClC"}
+{"version":3,"file":"cbor.d.ts","sourceRoot":"","sources":["../src/cbor.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;GAuBG;AA0KH,2DAA2D;AAC3D,eAAO,MAAM,aAAa;6BA1BF,OAAO,KAAG,UAAU;CA0Ba,CAAC;AAE1D,MAAM,CAAC,OAAO,WAAW,aAAa,CAAC;IACrC,wDAAwD;IACxD,KAAY,OAAO,GAAG,UAAU,CAAC;CAClC"}

dist/cbor.js

@@ -25,2 +25,3 @@ /**
  */
+import { UnsupportedError, ValidationError } from '@czap/error';
 const MAJOR_UNSIGNED = 0 << 5;
@@ -41,3 +42,3 @@ const MAJOR_NEGATIVE = 1 << 5;
     if (value < 0 || !Number.isFinite(value)) {
-        throw new RangeError(`CanonicalCbor: head argument must be a non-negative finite integer, got ${value}`);
+        throw ValidationError('CanonicalCbor.encodeHead', `head argument must be a non-negative finite integer, got ${value}`);
     }
@@ -175,3 +176,3 @@ if (value < 24) {
     }
-    throw new TypeError(`CanonicalCbor: unsupported value type ${typeof value}`);
+    throw UnsupportedError('CBOR value type', `${typeof value} cannot be canonically encoded`);
 };
@@ -178,0 +179,0 @@ /** Canonical CBOR encoder namespace (ADR-0001 pattern). */

dist/cbor.js.map

@@ -1,1 +0,1 @@
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dist/index.d.ts

@@ -7,4 +7,3 @@ /**
 export { CanonicalCbor } from './cbor.js';
-export { decode, CborDecodeError } from './cbor-decode.js';
-export type { CborDecodeErrorReason } from './cbor-decode.js';
+export { decode } from './cbor-decode.js';
 export { ContentAddress, IntegrityDigest } from './brands.js';
@@ -11,0 +10,0 @@ export { fnv1a, fnv1aBytes } from './fnv.js';

dist/index.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,OAAO,EAAE,aAAa,EAAE,MAAM,WAAW,CAAC;AAC1C,OAAO,EAAE,MAAM,EAAE,eAAe,EAAE,MAAM,kBAAkB,CAAC;AAC3D,YAAY,EAAE,qBAAqB,EAAE,MAAM,kBAAkB,CAAC;AAC9D,OAAO,EAAE,cAAc,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AAC9D,OAAO,EAAE,KAAK,EAAE,UAAU,EAAE,MAAM,UAAU,CAAC;AAC7C,OAAO,EAAE,eAAe,EAAE,iBAAiB,EAAE,MAAM,uBAAuB,CAAC"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,OAAO,EAAE,aAAa,EAAE,MAAM,WAAW,CAAC;AAC1C,OAAO,EAAE,MAAM,EAAE,MAAM,kBAAkB,CAAC;AAC1C,OAAO,EAAE,cAAc,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AAC9D,OAAO,EAAE,KAAK,EAAE,UAAU,EAAE,MAAM,UAAU,CAAC;AAC7C,OAAO,EAAE,eAAe,EAAE,iBAAiB,EAAE,MAAM,uBAAuB,CAAC"}

dist/index.js

@@ -7,3 +7,3 @@ /**
 export { CanonicalCbor } from './cbor.js';
-export { decode, CborDecodeError } from './cbor-decode.js';
+export { decode } from './cbor-decode.js';
 export { ContentAddress, IntegrityDigest } from './brands.js';
@@ -10,0 +10,0 @@ export { fnv1a, fnv1aBytes } from './fnv.js';

dist/index.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,OAAO,EAAE,aAAa,EAAE,MAAM,WAAW,CAAC;AAC1C,OAAO,EAAE,MAAM,EAAE,eAAe,EAAE,MAAM,kBAAkB,CAAC;AAE3D,OAAO,EAAE,cAAc,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AAC9D,OAAO,EAAE,KAAK,EAAE,UAAU,EAAE,MAAM,UAAU,CAAC;AAC7C,OAAO,EAAE,eAAe,EAAE,iBAAiB,EAAE,MAAM,uBAAuB,CAAC"}
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AAEH,OAAO,EAAE,aAAa,EAAE,MAAM,WAAW,CAAC;AAC1C,OAAO,EAAE,MAAM,EAAE,MAAM,kBAAkB,CAAC;AAC1C,OAAO,EAAE,cAAc,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AAC9D,OAAO,EAAE,KAAK,EAAE,UAAU,EAAE,MAAM,UAAU,CAAC;AAC7C,OAAO,EAAE,eAAe,EAAE,iBAAiB,EAAE,MAAM,uBAAuB,CAAC"}

package.json

 {
   "name": "@czap/canonical",
-  "version": "0.3.1",
-  "description": "Self-contained canonical bytes kernel — deterministic CBOR, FNV-1a, and sync digests",
+  "version": "0.4.0",
+  "description": "Self-contained bytes kernel: RFC 8949 §4.2.1 CBOR, FNV-1a labels, sync `AddressedDigest` (no Effect/spine in-package)",
   "license": "MIT",
@@ -38,3 +38,4 @@ "author": "Eassa Ayoub <[e-mail]>",
   "dependencies": {
-    "@noble/hashes": "^1.8.0"
+    "@noble/hashes": "^1.8.0",
+    "@czap/error": "0.4.0"
   },
@@ -41,0 +42,0 @@ "engines": {

src/brands.ts

@@ -8,5 +8,12 @@ /**
  *
+ * The constructors are VALIDATING smart constructors (parse-don't-validate):
+ * each throws `ValidationError` on input that does not match the brand's
+ * real runtime shape, so a branded value is a proof of that shape. `@czap/error`
+ * is a zero-dep foundational package, so importing it here introduces no cycle.
+ *
  * @module
  */
 
+import { ValidationError } from '@czap/error';
+
 /** Content-addressed hash. Format: `fnv1a:XXXXXXXX` (8 hex digits). */
@@ -18,6 +25,45 @@ export type ContentAddress = `fnv1a:${string}`;
 
-/** Wrap a plain string as a {@link ContentAddress}. */
-export const ContentAddress = (value: string): ContentAddress => value as ContentAddress;
+/**
+ * A {@link ContentAddress} is the `fnv1a:` prefix followed by exactly 8 lowercase
+ * hex digits — the full width of the FNV-1a 32-bit output ({@link fnv.ts} pads to
+ * 8 via `(h >>> 0).toString(16).padStart(8, '0')`).
+ */
+const CONTENT_ADDRESS_RE = /^fnv1a:[0-9a-f]{8}$/;
 
-/** Wrap a plain string as an {@link IntegrityDigest}. */
-export const IntegrityDigest = (value: string): IntegrityDigest => value as IntegrityDigest;
+/**
+ * An {@link IntegrityDigest} is `sha256:` or `blake3:` followed by exactly 64
+ * lowercase hex digits — the full width of a 256-bit cryptographic digest
+ * (ADR-0011). Only these two algorithms are sanctioned.
+ */
+const INTEGRITY_DIGEST_RE = /^(?:sha256|blake3):[0-9a-f]{64}$/;
+
+/** Type guard: `s` is a syntactically valid {@link ContentAddress}. */
+export const isContentAddress = (s: string): s is ContentAddress => CONTENT_ADDRESS_RE.test(s);
+
+/** Type guard: `s` is a syntactically valid {@link IntegrityDigest}. */
+export const isIntegrityDigest = (s: string): s is IntegrityDigest => INTEGRITY_DIGEST_RE.test(s);
+
+/**
+ * Parse a plain string into a {@link ContentAddress}.
+ * @throws `ValidationError` when `value` is not `fnv1a:` + 8 lowercase hex.
+ */
+export const ContentAddress = (value: string): ContentAddress => {
+  if (!isContentAddress(value)) {
+    throw ValidationError('ContentAddress', `expected fnv1a:<8 lowercase hex>, got ${JSON.stringify(value)}`);
+  }
+  return value;
+};
+
+/**
+ * Parse a plain string into an {@link IntegrityDigest}.
+ * @throws `ValidationError` when `value` is not `sha256:`/`blake3:` + 64 lowercase hex.
+ */
+export const IntegrityDigest = (value: string): IntegrityDigest => {
+  if (!isIntegrityDigest(value)) {
+    throw ValidationError(
+      'IntegrityDigest',
+      `expected (sha256|blake3):<64 lowercase hex>, got ${JSON.stringify(value)}`,
+    );
+  }
+  return value;
+};

src/cbor-decode.ts

@@ -6,4 +6,5 @@ /**
  * encoder (`./cbor.ts`) emits, and rejects everything else with a typed
- * {@link CborDecodeError}. This is the reader the encoder's bytes have
- * lacked: a persisted DocumentGraph (content-addressed via the encoder)
+ * `ParseError` (source `'cbor'`, `code` = the reason discriminant,
+ * `offset` = the byte position). This is the reader the encoder's bytes
+ * have lacked: a persisted DocumentGraph (content-addressed via the encoder)
  * can now be re-read without a third-party CBOR library that would accept
@@ -21,3 +22,3 @@ * non-canonical encodings.
  *
- * Rejected (typed `CborDecodeError`):
+ * Rejected (typed `ParseError`, `code` carries the reason):
  * - non-shortest integer/length encodings (`'non_canonical'`).
@@ -34,16 +35,13 @@ * - float16 (ai=25) and float32 (ai=26) in major 7 (`'non_canonical'`).
 
-/** Reason a {@link CborDecodeError} was raised. */
-export type CborDecodeErrorReason = 'non_canonical' | 'malformed' | 'unexpected_eof';
+import { ParseError } from '@czap/error';
 
-/** Typed error for any input outside the canonical subset. */
-export class CborDecodeError extends Error {
-  readonly reason: CborDecodeErrorReason;
-  /** Byte offset where decoding failed (best effort). */
-  readonly offset: number;
-  constructor(reason: CborDecodeErrorReason, message: string, offset: number) {
-    super(`CborDecodeError[${reason}] @${offset}: ${message}`);
-    this.name = 'CborDecodeError';
-    this.reason = reason;
-    this.offset = offset;
-  }
+/**
+ * The reason a canonical-CBOR `ParseError` was raised. Carried in the
+ * error's `code` field; kept local to constrain the value at every throw site.
+ */
+type CborDecodeErrorReason = 'non_canonical' | 'malformed' | 'unexpected_eof';
+
+/** Raise a canonical-CBOR `ParseError`: `code` = reason, `offset` = byte position. */
+function fail(reason: CborDecodeErrorReason, message: string, offset: number): never {
+  throw ParseError('cbor', message, { code: reason, offset });
 }
@@ -73,7 +71,3 @@
     if (this.pos + n > this.bytes.length) {
-      throw new CborDecodeError(
-        'unexpected_eof',
-        `need ${n} byte(s) but only ${this.bytes.length - this.pos} remain`,
-        this.pos,
-      );
+      fail('unexpected_eof', `need ${n} byte(s) but only ${this.bytes.length - this.pos} remain`, this.pos);
     }
@@ -109,3 +103,3 @@ }
     if (v < 24) {
-      throw new CborDecodeError('non_canonical', `1-byte argument ${v} should be inlined`, headOffset);
+      fail('non_canonical', `1-byte argument ${v} should be inlined`, headOffset);
     }
@@ -119,3 +113,3 @@ return v;
     if (v < 0x100) {
-      throw new CborDecodeError('non_canonical', `2-byte argument ${v} should use a shorter head`, headOffset);
+      fail('non_canonical', `2-byte argument ${v} should use a shorter head`, headOffset);
     }
@@ -131,3 +125,3 @@ return v;
     if (v < 0x10000) {
-      throw new CborDecodeError('non_canonical', `4-byte argument ${v} should use a shorter head`, headOffset);
+      fail('non_canonical', `4-byte argument ${v} should use a shorter head`, headOffset);
     }
@@ -141,6 +135,6 @@ return v;
     if (hi === 0 && lo < 0x100000000) {
-      throw new CborDecodeError('non_canonical', `8-byte argument ${v} should use a shorter head`, headOffset);
+      fail('non_canonical', `8-byte argument ${v} should use a shorter head`, headOffset);
     }
     if (!Number.isSafeInteger(v)) {
-      throw new CborDecodeError('malformed', `integer ${v} exceeds the encoder's safe-integer range`, headOffset);
+      fail('malformed', `integer ${v} exceeds the encoder's safe-integer range`, headOffset);
     }
@@ -151,5 +145,5 @@ return v;
   if (ai === 31) {
-    throw new CborDecodeError('non_canonical', 'indefinite-length items are not canonical', headOffset);
+    fail('non_canonical', 'indefinite-length items are not canonical', headOffset);
   }
-  throw new CborDecodeError('malformed', `reserved additional-info value ${ai}`, headOffset);
+  fail('malformed', `reserved additional-info value ${ai}`, headOffset);
 }
@@ -178,3 +172,3 @@
       if (!Number.isSafeInteger(v)) {
-        throw new CborDecodeError('malformed', `negative integer ${v} out of safe range`, headOffset);
+        fail('malformed', `negative integer ${v} out of safe range`, headOffset);
       }
@@ -196,3 +190,3 @@ return v;
       } catch {
-        throw new CborDecodeError('malformed', 'invalid UTF-8 in text string', headOffset);
+        fail('malformed', 'invalid UTF-8 in text string', headOffset);
       }
@@ -219,3 +213,3 @@ }
         if (keyHead === undefined || keyHead >> 5 !== 3) {
-          throw new CborDecodeError('malformed', 'map keys must be text strings', keyOffset);
+          fail('malformed', 'map keys must be text strings', keyOffset);
         }
@@ -228,6 +222,6 @@ const keyStart = r.pos;
           if (cmp > 0) {
-            throw new CborDecodeError('non_canonical', 'map keys are not in canonical byte order', keyOffset);
+            fail('non_canonical', 'map keys are not in canonical byte order', keyOffset);
           }
           if (cmp === 0) {
-            throw new CborDecodeError('non_canonical', 'duplicate map key', keyOffset);
+            fail('non_canonical', 'duplicate map key', keyOffset);
           }
@@ -261,18 +255,14 @@ }
         case 25:
-          throw new CborDecodeError('non_canonical', 'float16 is not in the canonical subset', headOffset);
+          return fail('non_canonical', 'float16 is not in the canonical subset', headOffset);
         case 26:
-          throw new CborDecodeError('non_canonical', 'float32 is not in the canonical subset', headOffset);
+          return fail('non_canonical', 'float32 is not in the canonical subset', headOffset);
         case 27:
           return decodeFloat64(r);
         case 31:
-          throw new CborDecodeError('non_canonical', 'indefinite-length break is not canonical', headOffset);
+          return fail('non_canonical', 'indefinite-length break is not canonical', headOffset);
         case 23:
           // `undefined` (simple 23) is never emitted — encoder coerces it to null.
-          throw new CborDecodeError(
-            'non_canonical',
-            'simple value `undefined` is not in the canonical subset',
-            headOffset,
-          );
+          return fail('non_canonical', 'simple value `undefined` is not in the canonical subset', headOffset);
         default:
-          throw new CborDecodeError('malformed', `unsupported simple/float value (ai=${ai})`, headOffset);
+          return fail('malformed', `unsupported simple/float value (ai=${ai})`, headOffset);
       }
@@ -282,3 +272,3 @@ }
       // Major 6 (tags) is not part of the encoder's output.
-      throw new CborDecodeError('malformed', `unsupported major type ${major}`, headOffset);
+      return fail('malformed', `unsupported major type ${major}`, headOffset);
   }
@@ -292,9 +282,10 @@ }
  * encoder emits (non-shortest forms, float16/32, indefinite lengths,
- * out-of-order map keys, trailing bytes) raises a typed {@link CborDecodeError}.
+ * out-of-order map keys, trailing bytes) raises a typed `ParseError`
+ * (source `'cbor'`, `code` = the reason discriminant).
  *
- * @throws {CborDecodeError}
+ * @throws A `@czap/error` `ParseError` (`source` `'cbor'`).
  */
 export function decode(bytes: Uint8Array): unknown {
   if (!(bytes instanceof Uint8Array)) {
-    throw new CborDecodeError('malformed', 'input must be a Uint8Array', 0);
+    fail('malformed', 'input must be a Uint8Array', 0);
   }
@@ -304,5 +295,5 @@ const r = new Reader(bytes);
   if (r.pos !== bytes.length) {
-    throw new CborDecodeError('malformed', `trailing ${bytes.length - r.pos} byte(s) after top-level item`, r.pos);
+    fail('malformed', `trailing ${bytes.length - r.pos} byte(s) after top-level item`, r.pos);
   }
   return value;
 }

src/cbor.ts

@@ -26,2 +26,4 @@ /**
 
+import { UnsupportedError, ValidationError } from '@czap/error';
+
 const MAJOR_UNSIGNED = 0 << 5;
@@ -45,3 +47,6 @@ const MAJOR_NEGATIVE = 1 << 5;
   if (value < 0 || !Number.isFinite(value)) {
-    throw new RangeError(`CanonicalCbor: head argument must be a non-negative finite integer, got ${value}`);
+    throw ValidationError(
+      'CanonicalCbor.encodeHead',
+      `head argument must be a non-negative finite integer, got ${value}`,
+    );
   }
@@ -188,3 +193,3 @@ if (value < 24) {
   }
-  throw new TypeError(`CanonicalCbor: unsupported value type ${typeof value}`);
+  throw UnsupportedError('CBOR value type', `${typeof value} cannot be canonically encoded`);
 };
@@ -191,0 +196,0 @@

src/index.ts

@@ -8,6 +8,5 @@ /**
 export { CanonicalCbor } from './cbor.js';
-export { decode, CborDecodeError } from './cbor-decode.js';
-export type { CborDecodeErrorReason } from './cbor-decode.js';
+export { decode } from './cbor-decode.js';
 export { ContentAddress, IntegrityDigest } from './brands.js';
 export { fnv1a, fnv1aBytes } from './fnv.js';
 export { AddressedDigest, addressedDigestOf } from './addressed-digest.js';

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Improved metrics

Total package byte prevSize

74982

10.01%

Number of package files

33

3.13%

Lines of code

1298

6.13%

Number of medium quality alerts

0

-100%

Number of lines in readme file

51

Infinity%

Worsened metrics

Dependency count

2

100%

Dependency changes

• + Added

  @czap/error@0.4.0

• + Added

  @czap/error@0.4.0
  (transitive)