@agoric/marshal - npm Package Compare versions

Comparing version 0.5.1-dev-4b40da0.0 to 0.5.1-dev-4e2aef4.0

index.js

@@ -1,4 +0,12 @@
-export { PASS_STYLE, isObject } from './src/helpers/passStyleHelpers.js';
-export { getErrorConstructor } from './src/helpers/error.js';
+export { mapIterable, filterIterable } from './src/helpers/iter-helpers.js';
 export {
+  PASS_STYLE,
+  isObject,
+  assertChecker,
+  getTag,
+  hasOwnPropertyOf,
+} from './src/helpers/passStyle-helpers.js';
+
+export { getErrorConstructor, toPassableError } from './src/helpers/error.js';
+export {
   getInterfaceOf,
@@ -8,15 +16,21 @@ ALLOW_IMPLICIT_REMOTABLES,
 
-export { passStyleOf, everyPassableChild } from './src/passStyleOf.js';
+export {
+  nameForPassableSymbol,
+  passableSymbolForName,
+} from './src/helpers/symbol.js';
 
+export { passStyleOf, assertPassable } from './src/passStyleOf.js';
+
+export { pureCopy, sameValueZero } from './src/pureCopy.js';
+export { deeplyFulfilled } from './src/deeplyFulfilled.js';
+
+export { makeTagged } from './src/makeTagged.js';
+export { Remotable, Far, ToFarFunction } from './src/make-far.js';
+
 export { QCLASS, makeMarshal } from './src/marshal.js';
+export { stringify, parse } from './src/marshal-stringify.js';
+// Works, but not yet used
+// export { decodeToJustin } from './src/marshal-justin.js';
 
-export { pureCopy, Remotable, Far, ToFarFunction } from './src/make-far.js';
-export { stringify, parse } from './src/marshal-stringify.js';
 export {
-  isStructure,
-  assertStructure,
-  sameStructure,
-  fulfillToStructure,
-} from './src/structure.js';
-export {
   assertRecord,
@@ -28,2 +42,2 @@ assertCopyArray,
   isCopyArray,
-} from './src/assertPassStyleOf.js';
+} from './src/typeGuards.js';

package.json

 {
   "name": "@agoric/marshal",
-  "version": "0.5.1-dev-4b40da0.0+4b40da0",
+  "version": "0.5.1-dev-4e2aef4.0+4e2aef4",
   "description": "marshal",
@@ -37,10 +37,10 @@ "type": "module",
   "dependencies": {
-    "@agoric/assert": "0.3.16-dev-4b40da0.0+4b40da0",
-    "@agoric/eventual-send": "0.14.1-dev-4b40da0.0+4b40da0",
+    "@agoric/assert": "0.3.16-dev-4e2aef4.0+4e2aef4",
+    "@agoric/eventual-send": "0.14.1-dev-4e2aef4.0+4e2aef4",
     "@agoric/nat": "^4.1.0",
-    "@agoric/promise-kit": "0.2.30-dev-4b40da0.0+4b40da0"
+    "@agoric/promise-kit": "0.2.30-dev-4e2aef4.0+4e2aef4"
   },
   "devDependencies": {
-    "@agoric/lockdown": "0.1.2-dev-4b40da0.0+4b40da0",
-    "@endo/ses-ava": "^0.2.8",
+    "@agoric/lockdown": "0.1.2-dev-4e2aef4.0+4e2aef4",
+    "@endo/ses-ava": "^0.2.13",
     "ava": "^3.12.1",
@@ -72,3 +72,3 @@ "c8": "^7.7.2"
   },
-  "gitHead": "4b40da01ad20fe1cc9361b4e3d2f7ad52e609f9c"
+  "gitHead": "4e2aef4b3f8064b940e639c2e87fbfdced983e92"
 }

src/dot-membrane.js

@@ -9,3 +9,3 @@ /* eslint-disable no-use-before-define */
 import { E } from '@agoric/eventual-send';
-import { isObject } from './helpers/passStyleHelpers.js';
+import { isObject } from './helpers/passStyle-helpers.js';
 import { getInterfaceOf } from './helpers/remotable.js';
@@ -12,0 +12,0 @@ import { Far } from './make-far.js';

src/helpers/copyArray.js

@@ -9,3 +9,3 @@ // @ts-check
 import '@agoric/assert/exported.js';
-import { assertChecker, checkNormalProperty } from './passStyleHelpers.js';
+import { assertChecker, checkNormalProperty } from './passStyle-helpers.js';
 
@@ -48,9 +48,4 @@ const { details: X } = assert;
     // Recursively validate that each member is passable.
-    CopyArrayHelper.every(candidate, v => !!passStyleOfRecur(v));
+    candidate.every(v => !!passStyleOfRecur(v));
   },
-
-  every: (passable, fn) =>
-    // Note that we explicitly call `fn` with only the arguments we want
-    // to provide.
-    passable.every((v, i) => fn(v, i)),
 });

src/helpers/copyRecord.js

@@ -10,3 +10,3 @@ // @ts-check
   checkNormalProperty,
-} from './passStyleHelpers.js';
+} from './passStyle-helpers.js';
 
@@ -22,3 +22,2 @@ import '../types.js';
   getOwnPropertyDescriptors,
-  entries,
   prototype: objectPrototype,
@@ -67,9 +66,4 @@ } = Object;
     // Recursively validate that each member is passable.
-    CopyRecordHelper.every(candidate, v => !!passStyleOfRecur(v));
+    Object.values(candidate).every(v => !!passStyleOfRecur(v));
   },
-
-  every: (passable, fn) =>
-    // Note that we explicitly call `fn` with only the arguments we want
-    // to provide.
-    entries(passable).every(([k, v]) => fn(v, k)),
 });

src/helpers/error.js

@@ -9,3 +9,3 @@ // @ts-check
 import '@agoric/assert/exported.js';
-import { assertChecker } from './passStyleHelpers.js';
+import { assertChecker } from './passStyle-helpers.js';
 
@@ -99,4 +99,2 @@ const { details: X } = assert;
   },
-
-  every: (_passable, _fn) => true,
 });
@@ -103,0 +101,0 @@

src/helpers/internal-types.js

@@ -30,8 +30,2 @@ // @ts-check
  *            ) => void} assertValid
- *
- * @property {(passable: Passable,
- *             fn: (passable: Passable, index: any) => boolean
- *           ) => boolean} every
- * For recuring through the nested passable structure. Like
- * `Array.prototype.every`, return `false` to stop early.
  */

src/helpers/remotable.js

@@ -17,3 +17,3 @@ // @ts-check
   getTag,
-} from './passStyleHelpers.js';
+} from './passStyle-helpers.js';
 import { getEnvironmentOption } from './environment-options.js';
@@ -20,0 +20,0 @@

src/make-far.js

@@ -7,3 +7,3 @@ // @ts-check
 import { assert, details as X, q } from '@agoric/assert';
-import { assertChecker, PASS_STYLE } from './helpers/passStyleHelpers.js';
+import { assertChecker, PASS_STYLE } from './helpers/passStyle-helpers.js';
 import {
@@ -14,3 +14,3 @@ assertIface,
 } from './helpers/remotable.js';
-import { passStyleOf } from './passStyleOf.js';
+import { pureCopy } from './pureCopy.js';
 
@@ -27,69 +27,2 @@ const { prototype: functionPrototype } = Function;
 /**
- * Do a deep copy of the object, handling Proxies and recursion.
- * The resulting copy is guaranteed to be pure data, as well as hardened.
- * Such a hardened, pure copy cannot be used as a communications path.
- *
- * @template {OnlyData} T
- * @param {T} val input value.  NOTE: Must be hardened!
- * @returns {T} pure, hardened copy
- */
-export const pureCopy = val => {
-  // passStyleOf now asserts that val has no pass-by-copy cycles.
-  const passStyle = passStyleOf(val);
-  switch (passStyle) {
-    case 'bigint':
-    case 'boolean':
-    case 'null':
-    case 'number':
-    case 'string':
-    case 'undefined':
-    case 'symbol':
-      return val;
-
-    case 'copyArray':
-    case 'copyRecord': {
-      const obj = /** @type {Object} */ (val);
-
-      // Create a new identity.
-      const copy = /** @type {T} */ (passStyle === 'copyArray' ? [] : {});
-
-      // Make a deep copy on the new identity.
-      // Object.entries(obj) takes a snapshot (even if a Proxy).
-      // Since we already know it is a copyRecord or copyArray, we
-      // know that Object.entries is safe enough. On a copyRecord it
-      // will represent all the own properties. On a copyArray it
-      // will represent all the own properties except for the length.
-      Object.entries(obj).forEach(([prop, value]) => {
-        copy[prop] = pureCopy(value);
-      });
-      return harden(copy);
-    }
-
-    case 'error': {
-      assert.fail(X`Errors cannot be copied: ${val}`, TypeError);
-    }
-
-    case 'remotable': {
-      assert.fail(
-        X`Input value ${q(
-          passStyle,
-        )} cannot be copied as it must be passed by reference`,
-        TypeError,
-      );
-    }
-
-    case 'promise': {
-      assert.fail(X`Promises cannot be copied`, TypeError);
-    }
-
-    default:
-      assert.fail(
-        X`Input value ${q(passStyle)} is not recognized as data`,
-        TypeError,
-      );
-  }
-};
-harden(pureCopy);
-
-/**
  * Now that the remotableProto does not provide its own `toString` method,
@@ -96,0 +29,0 @@ * ensure it always inherits from something. The original prototype of

src/marshal-justin.js

@@ -12,3 +12,4 @@ // @ts-check
 import { getErrorConstructor } from './helpers/error.js';
-import { isObject } from './helpers/passStyleHelpers.js';
+import { isObject } from './helpers/passStyle-helpers.js';
+import { AtAtPrefixPattern, passableSymbolForName } from './helpers/symbol.js';
 
@@ -169,20 +170,14 @@ const { ownKeys } = Reflect;
         }
-        case 'error': {
-          const { name, message } = rawTree;
-          assert.typeof(
-            name,
-            'string',
-            X`invalid error name typeof ${q(typeof name)}`,
-          );
-          assert(
-            getErrorConstructor(name) !== undefined,
-            X`Must be the name of an Error constructor ${name}`,
-          );
-          assert.typeof(
-            message,
-            'string',
-            X`invalid error message typeof ${q(typeof message)}`,
-          );
+        case 'symbol': {
+          const { name } = rawTree;
+          const sym = passableSymbolForName(name);
+          assert.typeof(sym, 'symbol');
           return;
         }
+        case 'tagged': {
+          const { tag, payload } = rawTree;
+          assert.typeof(tag, 'string');
+          prepare(payload);
+          return;
+        }
         case 'slot': {
@@ -229,2 +224,20 @@ const { index, iface } = rawTree;
         }
+        case 'error': {
+          const { name, message } = rawTree;
+          assert.typeof(
+            name,
+            'string',
+            X`invalid error name typeof ${q(typeof name)}`,
+          );
+          assert(
+            getErrorConstructor(name) !== undefined,
+            X`Must be the name of an Error constructor ${name}`,
+          );
+          assert.typeof(
+            message,
+            'string',
+            X`invalid error message typeof ${q(typeof message)}`,
+          );
+          return;
+        }
 
@@ -321,9 +334,25 @@ default: {
         case '@@asyncIterator': {
+          // TODO deprecated. Eventually remove.
           return out.next('Symbol.asyncIterator');
         }
-
-        case 'error': {
-          const { name, message } = rawTree;
-          return out.next(`${name}(${quote(message)})`);
+        case 'symbol': {
+          const { name } = rawTree;
+          const sym = passableSymbolForName(name);
+          assert.typeof(sym, 'symbol');
+          const registeredName = Symbol.keyFor(sym);
+          if (registeredName === undefined) {
+            const match = AtAtPrefixPattern.exec(name);
+            assert(match !== null);
+            const suffix = match[1];
+            assert(Symbol[suffix] === sym);
+            return out.next(`Symbol[${quote(suffix)}]`);
+          }
+          return out.next(`Symbol.for(${quote(registeredName)})`);
         }
+        case 'tagged': {
+          const { tag, payload } = rawTree;
+          out.next(`makeTagged(${quote(tag)},`);
+          decode(payload);
+          return out.next(')');
+        }
 
@@ -352,2 +381,7 @@ case 'slot': {
 
+        case 'error': {
+          const { name, message } = rawTree;
+          return out.next(`${name}(${quote(message)})`);
+        }
+
         default: {
@@ -354,0 +388,0 @@ assert.fail(X`unrecognized ${q(QCLASS)} ${q(qclass)}`, TypeError);

src/marshal.js

@@ -13,3 +13,9 @@ // @ts-check
 import { ErrorHelper, getErrorConstructor } from './helpers/error.js';
-import { isObject } from './helpers/passStyleHelpers.js';
+import { makeTagged } from './makeTagged.js';
+import { isObject, getTag } from './helpers/passStyle-helpers.js';
+import {
+  assertPassableSymbol,
+  nameForPassableSymbol,
+  passableSymbolForName,
+} from './helpers/symbol.js';
 
@@ -138,6 +144,5 @@ const { ownKeys } = Reflect;
      * Must encode `val` into plain JSON data *canonically*, such that
-     * `sameStructure(v1, v2)` implies
-     * `JSON.stringify(encode(v1)) === JSON.stringify(encode(v2))`
-     * For each record, we only accept sortable property names
-     * (no anonymous symbols). On the encoded form the sort
+     * `JSON.stringify(encode(v1)) === JSON.stringify(encode(v1))`
+     * For each copyRecord, we only accept string property names,
+     * not symbols. The encoded form the sort
      * order of these names must be the same as their enumeration
@@ -190,12 +195,17 @@ * order, so a `JSON.stringify` of the encoded form agrees with
         case 'symbol': {
-          switch (val) {
-            case Symbol.asyncIterator: {
-              return harden({
-                [QCLASS]: '@@asyncIterator',
-              });
-            }
-            default: {
-              assert.fail(X`Unsupported symbol ${q(String(val))}`);
-            }
+          assertPassableSymbol(val);
+          const name = /** @type {string} */ (nameForPassableSymbol(val));
+          if (name === '@@asyncIterator') {
+            // Deprectated qclass. TODO make conditional
+            // on environment variable. Eventually remove, but only after
+            // confident that all supported receivers understand
+            // `[QCLASS]: 'symbol'`.
+            return harden({
+              [QCLASS]: '@@asyncIterator',
+            });
           }
+          return harden({
+            [QCLASS]: 'symbol',
+            name,
+          });
         }
@@ -232,4 +242,10 @@ case 'copyRecord': {
         }
-        case 'error': {
-          return encodeError(val);
+        case 'tagged': {
+          /** @type {Encoding} */
+          const result = harden({
+            [QCLASS]: 'tagged',
+            tag: getTag(val),
+            payload: encode(val.payload),
+          });
+          return result;
         }
@@ -241,2 +257,5 @@ case 'remotable': {
         }
+        case 'error': {
+          return encodeError(val);
+        }
         case 'promise': {
@@ -352,5 +371,17 @@ // console.log(`serializeSlot: ${val}`);
           case '@@asyncIterator': {
+            // Deprectated qclass. TODO make conditional
+            // on environment variable. Eventually remove, but after confident
+            // that there are no more supported senders.
             return Symbol.asyncIterator;
           }
+          case 'symbol': {
+            const { name } = rawTree;
+            return passableSymbolForName(name);
+          }
 
+          case 'tagged': {
+            const { tag, payload } = rawTree;
+            return makeTagged(tag, fullRevive(payload));
+          }
+
           case 'error': {
@@ -357,0 +388,0 @@ const { name, message, errorId } = rawTree;

src/passStyleOf.js

@@ -7,11 +7,13 @@ // @ts-check
 import { isPromise } from '@agoric/promise-kit';
-import { isObject, PASS_STYLE } from './helpers/passStyleHelpers.js';
+import { isObject, PASS_STYLE } from './helpers/passStyle-helpers.js';
 
 import { CopyArrayHelper } from './helpers/copyArray.js';
 import { CopyRecordHelper } from './helpers/copyRecord.js';
+import { TaggedHelper } from './helpers/tagged.js';
+import { RemotableHelper } from './helpers/remotable.js';
 import { ErrorHelper } from './helpers/error.js';
-import { RemotableHelper } from './helpers/remotable.js';
 
 import './types.js';
 import './helpers/internal-types.js';
+import { assertPassableSymbol } from './helpers/symbol.js';
 
@@ -30,5 +32,5 @@ const { details: X, quote: q } = assert;
  * accidents.
- * @returns {{passStyleOf: PassStyleOf, HelperTable: any}}
+ * @returns {PassStyleOf}
  */
-const makePassStyleOfKit = passStyleHelpers => {
+const makePassStyleOf = passStyleHelpers => {
   const HelperTable = {
@@ -38,4 +40,5 @@ __proto__: null,
     copyRecord: undefined,
+    tagged: undefined,
+    remotable: undefined,
     error: undefined,
-    remotable: undefined,
   };
@@ -120,6 +123,9 @@ for (const helper of passStyleHelpers) {
         case 'number':
-        case 'bigint':
-        case 'symbol': {
+        case 'bigint': {
           return typestr;
         }
+        case 'symbol': {
+          assertPassableSymbol(inner);
+          return 'symbol';
+        }
         case 'object': {
@@ -180,23 +186,16 @@ if (inner === null) {
   };
-  return harden({ passStyleOf, HelperTable });
+  return harden(passStyleOf);
 };
 
-const { passStyleOf, HelperTable } = makePassStyleOfKit([
+export const passStyleOf = makePassStyleOf([
   CopyArrayHelper,
   CopyRecordHelper,
+  TaggedHelper,
+  RemotableHelper,
   ErrorHelper,
-  RemotableHelper,
 ]);
-export { passStyleOf };
 
-export const everyPassableChild = (passable, fn) => {
-  const passStyle = passStyleOf(passable);
-  const helper = HelperTable[passStyle];
-  if (helper) {
-    // everyPassable guards .every so that each helper only gets a
-    // genuine passable of its own flavor.
-    return helper.every(passable, fn);
-  }
-  return true;
+export const assertPassable = val => {
+  passStyleOf(val); // throws if val is not a passable
 };
-harden(everyPassableChild);
+harden(assertPassable);

src/types.js

@@ -9,4 +9,10 @@ // @ts-nocheck TODO Fix the recursive types to it checks. Will this
  * @typedef { "undefined" | "null" |
- *   "boolean" | "number" | "bigint" | "string" | "symbol" |
- *   "copyArray" | "copyRecord" | "remotable" |
+ *   "boolean" | "number" | "bigint" | "string" | "symbol"
+ * } PrimitiveStyle
+ */
+
+/**
+ * @typedef { PrimitiveStyle |
+ *   "copyRecord" | "copyArray" | "tagged" |
+ *   "remotable" |
  *   "error" | "promise"
@@ -28,6 +34,6 @@ * } PassStyle
  *      "boolean" | "number" | "bigint" | "string" | "symbol"),
- *    * the pass-by-copy containers ("copyArray" | "copyRecord") that
+ *    * the pass-by-copy containers
+ *      ("copyRecord" | "copyArray" | "tagged") that
  *      contain other Passables,
- *    * and the special cases ("error" | "promise"), which
- *      also contain other Passables.
+ *    * and the special cases ("error" | "promise").
  *
@@ -48,14 +54,3 @@ * A Passable's pass-by-copy superstructure ends in
 /**
- * @typedef {Passable} Structure
- *
- * A Passable is a Structure when it contains only
- *    * pass-by-copy primitives,
- *    * pass-by-copy containers,
- *    * remotables.
- *
- * Two Structures may be compared by for equivalence according to
- * `sameStructure`, which is the strongest equivalence class supported by
- * marshal's distributed object semantics.
- *
- * Two Structures can also be compared for full ordering,
+ * Two Passables can also be compared for total rank ordering,
  *    * where their passStyles are ordered according to the
@@ -79,10 +74,5 @@ *      PassStyle typedef above.
 /**
- * @deprecated Renamed to `Structure`
- * @typedef {Structure} Comparable
- */
-
-/**
- * @typedef {Structure} OnlyData
+ * @typedef {Passable} OnlyData
  *
- * A Structure is OnlyData when its pass-by-copy superstructure has no
+ * A Passable is OnlyData when its pass-by-copy superstructure has no
  * remotables, i.e., when all the leaves of the data structure tree are
@@ -115,11 +105,19 @@ * primitive data types or empty composites.
 /**
- * @typedef {Passable} CopySet
+ * @template T
+ * @typedef {T[]} CopyArray
  */
 
 /**
- * @typedef {Passable} CopyMap
+ * @template T
+ * @typedef {Record<string, T>} CopyRecord
  */
 
 /**
- * @typedef {Passable} PatternNode
+ * @typedef {{
+ *   [PASS_STYLE]: 'tagged',
+ *   [Symbol.toStringTag]: string,
+ *   payload: Passable
+ * }} CopyTagged
+ *
+ * The tag is the value of the `[String.toStringTag]` property.
  */
@@ -156,2 +154,3 @@
  *           EncodingClass<'@@asyncIterator'> |
+ *           EncodingClass<'symbol'> & { name: string } |
  *           EncodingClass<'error'> & { name: string,
@@ -163,10 +162,12 @@ *                                      message: string,
  *           EncodingClass<'hilbert'> & { original: Encoding,
- *                                        rest?: Encoding }
+ *                                        rest?: Encoding
+ *           } |
+ *           EncodingClass<'tagged'> & { tag: string,
+ *                                       payload: Encoding
+ *           }
  * } EncodingUnion
- *
  * @typedef {{ [index: string]: Encoding,
- *             '@qclass'?: undefined }
- * } EncodingRecord
+ *             '@qclass'?: undefined
+ * }} EncodingRecord
  * We exclude '@qclass' as a property in encoding records.
- *
  * @typedef {EncodingUnion | null | string |
@@ -256,3 +257,2 @@ *           boolean | number | EncodingRecord
  * Simple semantics, just tell what interface (or undefined) a remotable has.
- *
  * @param {*} maybeRemotable the value to check
@@ -279,3 +279,2 @@ * @returns {InterfaceSpec|undefined} the interface specification, or undefined
  * See the various uses for good examples.
- *
  * @param {boolean} cond
@@ -282,0 +281,0 @@ * @param {Details=} details

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Improved metrics

Total package byte prevSize

135247

increased by5.55%

Number of package files

29

increased by20.83%

Lines of code

2888

increased by6.77%

Worsened metrics

Number of downloads

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decreased by-4.02%

Dependency changes

• Updated@agoric/assert@0.3.16-dev-4e2aef4.0+4e2aef4

• Updated@agoric/eventual-send@0.14.1-dev-4e2aef4.0+4e2aef4

• Updated@agoric/promise-kit@0.2.30-dev-4e2aef4.0+4e2aef4