@preserves/core - npm Package Compare versions

Comparing version 0.995.101 to 0.995.200

dist/preserves.es6.min.js

@@ -1,1 +0,1 @@
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Number.isFinite(this.value)?ft(this.value):'#xd"'+this.toBytes().toHex()+'"'}get[ht](){return"Double"}}function yt(t){return new pt(t)}function mt(t,e){return s(t,e)?e:void 0}class bt{constructor(t,e){this.index=0,this.packet=x(t),this.options=e}get includeAnnotations(){var t;return null!==(t=this.options.includeAnnotations)&&void 0!==t&&t}write(t){this.index===this.packet.length?this.packet=x(t):this.packet=g.concat([this.packet.slice(this.index),t])._view,this.index=0}atEnd(){return this.index>=this.packet.length}mark(){return this.index}restoreMark(t){this.index=t}shortGuard(t,e){if(this.atEnd())return e();const n=this.mark();try{return t()}catch(t){if(I.isShortPacket(t))return this.restoreMark(n),e();throw t}}nextbyte(){if(this.atEnd())throw new I("Short packet");return this.packet[this.index++]}nextbytes(t){const e=this.index;if(this.index+=t,this.index>this.packet.length)throw new I("Short packet");return new DataView(this.packet.buffer,this.packet.byteOffset+e,t)}varint(){const t=this.nextbyte();return t<128?t:(this.varint()<<7)+(t-128)}peekend(){return this.nextbyte()===t.End||(this.index--,!1)}nextint(t){const e=this.index;if(0===t)return 0;if(t>7)return this.nextbigint(t);if(7===t){const e=this.packet[this.index];if(e>=32&&e<224)return this.nextbigint(t)}let n=this.nextbyte();128&n&&(n-=256);for(let e=1;e<t;e++)n=256*n+this.nextbyte();return Number.isSafeInteger(n)?n:(this.index=e,this.nextbigint(t))}nextbigint(t){if(0===t)return BigInt(0);const e=g.from(this.nextbytes(t));if(e.get(0)>=128){const t=e.toHex((t=>v(15-t)));return~BigInt("0x"+t)}{const t=e.toHex();return BigInt("0x"+t)}}wrap(t){return this.includeAnnotations?new c(t):t}unshiftAnnotation(t,e){return this.includeAnnotations&&e.annotations.unshift(t),e}}const wt={decode(t){throw new Error("Embeddeds not permitted at this point in Preserves document")},fromValue(t,e){throw new Error("Embeddeds not permitted at this point in Preserves document")}};class gt{constructor(t=new Uint8Array(0),e){var n,r,s;if(t instanceof bt)this.state=t,this.embeddedDecode=null!==(n=e)&&void 0!==n?n:wt;else{const n=null!==(r=e)&&void 0!==r?r:{};this.state=new bt(t,n),this.embeddedDecode=null!==(s=n.embeddedDecode)&&void 0!==s?s:wt}}write(t){this.state.write(t)}nextvalues(){const t=[];for(;!this.state.peekend();)t.push(this.next());return t}static dictionaryFromArray(t){const e=new tt;if(t.length%2)throw new E("Missing dictionary value");for(let n=0;n<t.length;n+=2)e.set(t[n],t[n+1]);return e}next(){const e=this.state.nextbyte();switch(e){case t.False:return this.state.wrap(!1);case t.True:return this.state.wrap(!0);case t.End:throw new E("Unexpected Compound end marker");case t.Annotation:{const t=this.next(),e=this.next();return this.state.unshiftAnnotation(t,e)}case t.Embedded:return this.state.wrap(this.embeddedDecode.decode(this.state));case t.Ieee754:if(8===this.state.varint())return this.state.wrap(pt.fromBytes(this.state.nextbytes(8)));throw new E("Invalid IEEE754 size");case t.SignedInteger:return this.state.wrap(this.state.nextint(this.state.varint()));case t.String:return this.state.wrap(g.from(this.state.nextbytes(this.state.varint())).fromUtf8());case t.ByteString:return this.state.wrap(g.from(this.state.nextbytes(this.state.varint())));case t.Symbol:return this.state.wrap(Symbol.for(g.from(this.state.nextbytes(this.state.varint())).fromUtf8()));case t.Record:{const t=this.nextvalues();if(0===t.length)throw new E("Too few elements in encoded record");return this.state.wrap(D(t[0],t.slice(1)))}case t.Sequence:return this.state.wrap(this.nextvalues());case t.Set:return this.state.wrap(new it(this.nextvalues()));case t.Dictionary:return this.state.wrap(gt.dictionaryFromArray(this.nextvalues()));default:throw new E("Unsupported Preserves tag: "+e)}}try_next(){return this.state.shortGuard((()=>this.next()),(()=>{}))}atEnd(){return this.state.atEnd()}mark(){return this.state.mark()}restoreMark(t){return this.state.restoreMark(t)}skip(){this.next()}withEmbeddedDecode(t,e){return e(new gt(this.state,t))}skipAnnotations(e){const n=this.mark();for(;!this.state.atEnd()&&this.state.packet[this.state.index]===t.Annotation;)this.state.index++,this.skip();return e((()=>this.restoreMark(n)))}nextBoolean(){return this.skipAnnotations((e=>{switch(this.state.nextbyte()){case t.False:return!1;case t.True:return!0;default:return e()}}))}nextDouble(){return this.skipAnnotations((e=>this.state.nextbyte()!==t.Ieee754||8!==this.state.nextbyte()?e():pt.fromBytes(this.state.nextbytes(8))))}nextEmbedded(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Embedded?this.embeddedDecode.decode(this.state):e()))}nextSignedInteger(){return this.skipAnnotations((e=>this.state.nextbyte()===t.SignedInteger?this.state.nextint(this.state.varint()):e()))}nextString(){return this.skipAnnotations((e=>this.state.nextbyte()===t.String?g.from(this.state.nextbytes(this.state.varint())).fromUtf8():e()))}nextByteString(){return this.skipAnnotations((e=>this.state.nextbyte()===t.ByteString?g.from(this.state.nextbytes(this.state.varint())):e()))}nextSymbol(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Symbol?Symbol.for(g.from(this.state.nextbytes(this.state.varint())).fromUtf8()):e()))}openRecord(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Record||(e(),!1)))}openSequence(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Sequence||(e(),!1)))}openSet(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Set||(e(),!1)))}openDictionary(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Dictionary||(e(),!1)))}closeCompound(){return this.state.peekend()}}function vt(t,e={}){return new gt(t,e).next()}function _t(t,e={}){return vt(t,Object.assign(Object.assign({},e),{includeAnnotations:!0}))}function xt(t){return!("object"!=typeof t||null===t||Array.isArray(t)||g.isBytes(t)||dt.isFloat(t)||it.isSet(t)||tt.isDictionary(t)||c.isAnnotated(t))}class St{constructor(t){this.value=t}}class At{constructor(t){this.generic=t}equals(t,e){return"object"==typeof t&&"generic"in t&&e(this.generic,t.generic)}toString(){return this.generic.toString()}}function kt(t){return c.isAnnotated(t)?t.item:t}function Et(t){return Bt(t,1)}function Bt(t,e=1/0){return function t(e,n){if(0===n)return e;if(!c.isAnnotated(e))return e;const r=n-1;function s(e){return t(e,r)}if(D.isRecord(e.item))return D(t(e.item.label,n),e.item.map(s));if(c.isAnnotated(e.item))throw new Error("Improper annotation structure");return 0===r?e.item:Array.isArray(e.item)||it.isSet(e.item)?e.item.map(s):tt.isDictionary(e.item)?e.item.mapEntries((t=>[s(t[0]),s(t[1])])):e.item}(t,e)}function It(t){return"object"==typeof t&&null!==t&&"__preserve_text_on__"in t&&"function"==typeof t.__preserve_text_on__}const Dt={encode(t,e){new N(t,this).push(e.generic)},toValue:t=>t.generic},Ct={encode(t,e){throw new Error("Embeddeds not permitted encoding Preserves document")},toValue(t){throw new Error("Embeddeds not permitted writing Preserves document")}};class jt{constructor(t){var e;this.pieces=[],this.indentCount=0,this.options=t,this.indentDelta=" ".repeat(null!==(e=t.indent)&&void 0!==e?e:0)}get isIndenting(){return this.indentDelta.length>0}get includeAnnotations(){var t;return null===(t=this.options.includeAnnotations)||void 0===t||t}writeIndent(){if(this.isIndenting){this.pieces.push("\n");for(let t=0;t<this.indentCount;t++)this.pieces.push(this.indentDelta)}}writeIndentSpace(){this.isIndenting?this.writeIndent():this.pieces.push(" ")}escapeStringlikeChar(t,e=(t=>t)){switch(t){case"\\":return"\\\\";case"\b":return"\\b";case"\f":return"\\f";case"\n":return"\\n";case"\r":return"\\r";case"\t":return"\\t";default:return e(t)}}escapeStringlike(t,e){let n=e;for(let r of t)n+=r===e?"\\"+e:this.escapeStringlikeChar(r);return n+e}writeSeq(t,e,n,r){let s=n[Symbol.iterator]();this.pieces.push(t);const i=s.next();if(!0!==i.done){const t=i.value,e=s.next();if(!0===e.done)r(t);else{let n;for(this.indentCount++,this.writeIndent(),r(t),this.writeIndentSpace(),r(e.value);!0!==(n=s.next()).done;)this.writeIndentSpace(),r(n.value);this.indentCount--,this.writeIndent()}}this.pieces.push(e)}writeBytes(t){var e,n;const r=null!==(e=this.options.maxBinaryAsciiLength)&&void 0!==e?e:1024,s=null!==(n=this.options.maxBinaryAsciiProportion)&&void 0!==n?n:.75;if(t.length>=r)this.writeBase64(t);else{let e=0,n=Math.min(t.length,r);for(let r=0;r<n;r++){const n=t[r];switch(n){case 9:case 10:case 13:e++;break;default:n>=32&&n<=126&&e++}}0===n||e/n>=s?this.writeBinaryStringlike(t):this.writeBase64(t)}}writeBase64(t){this.pieces.push("#[",y(t),"]")}writeBinaryStringlike(t){let e='#"';for(let n of t)e+=34===n?'\\"':this.escapeStringlikeChar(String.fromCharCode(n),(t=>n>=32&&n<=126&&92!==n?t:"\\x"+("0"+n.toString(16)).slice(-2)));this.pieces.push(e+'"')}couldBeFlat(t){let e=!1;for(let n of t){if(Array.isArray(n)||Set.isSet(n)||Map.isMap(n)){if(e)return!1;e=!0}if(this.includeAnnotations&&r(n)&&n.annotations.length>1)return!1}return!0}}class Ot{constructor(t={},e){var n;t instanceof jt?(this.state=t,this.embeddedWrite=e):(this.state=new jt(t),this.embeddedWrite=null!==(n=t.embeddedWrite)&&void 0!==n?n:Ct)}static stringify(t,e){const n=new Ot(e);return n.push(t),n.contents()}contents(){return this.state.pieces.join("")}get includeAnnotations(){return this.state.includeAnnotations}push(t){switch(typeof t){case"boolean":this.state.pieces.push(t?"#t":"#f");break;case"string":this.state.pieces.push(this.state.escapeStringlike(t,'"'));break;case"symbol":{const e=t.description;/^[-a-zA-Z0-9~!$%^&*?_=+/.]+$/.exec(e)&&!Pt.exec(e)?this.state.pieces.push(e):this.state.pieces.push(this.state.escapeStringlike(e,"|"));break}case"bigint":case"number":this.state.pieces.push(""+t);break;case"object":if(null===t)throw new Error("Cannot encode null in Preserves Writer.push");if(It(t))t.__preserve_text_on__(this);else if(It(t))t.__preserve_text_on__(this);else if(ArrayBuffer.isView(t))if(t instanceof Uint8Array)this.state.writeBytes(t);else{const e=new Uint8Array(t.buffer,t.byteOffset,t.byteLength);this.state.writeBytes(e)}else if(D.isRecord(t)){const e=this.state.couldBeFlat(t);this.state.pieces.push("<"),this.push(t.label),e||this.state.indentCount++;for(let n of t)e?this.state.pieces.push(" "):this.state.writeIndentSpace(),this.push(n);e||this.state.indentCount--,this.state.pieces.push(">")}else!function(t){return"object"==typeof t&&null!==t&&"function"==typeof t[Symbol.iterator]}(t)?(t=>{this.state.pieces.push("#:"),"write"in this.embeddedWrite?this.embeddedWrite.write(this.state,t):new Ot(this.state,Dt).push(this.embeddedWrite.toValue(t))})(t):this.state.writeSeq("[","]",t,(t=>this.push(t)));break;default:(e=>{throw new Error(`Internal error: unhandled in Preserves Writer.push for ${t}`)})()}return this}}function qt(t){switch(typeof t){case"number":if(!Number.isInteger(t))throw new TypeError("Refusing to autoconvert non-integer number to Double");case"bigint":case"string":case"symbol":case"boolean":return t;case"undefined":case"function":break;case"object":if(null===t)break;if("function"==typeof t.__as_preserve__)return t.__as_preserve__();if(D.isRecord(t))return t;if(Array.isArray(t))return t.map(qt);if(ArrayBuffer.isView(t)||t instanceof ArrayBuffer)return g.from(t);if(Map.isMap(t)){const e=new tt;return t.forEach(((t,n)=>e.set(qt(n),qt(t)))),e}if(it.isSet(t)){const e=new it;return t.forEach((t=>e.add(qt(t)))),e}return t}throw new TypeError("Cannot represent JavaScript value as Preserves: "+t)}function Mt(t,e){return new Wt(t,e).next()}function Ut(t,e){return new Wt(t,e).readToEnd()}tt.fromJS=function(t){if(tt.isDictionary(t))return t;const e=new tt;return Object.entries(t).forEach((([t,n])=>e.set(t,qt(n)))),e};const Ft={write(t,e){if(e instanceof At)new Ot(t,this).push(e.generic);else{try{const n=qt(e);if(!xt(n))return void new Ot(t,this).push(n)}catch(t){}try{return void t.pieces.push(JSON.stringify(e))}catch(t){}t.pieces.push("⌜"+e+"⌝")}}};function Nt(t,e){var n;return(e=Object.assign({},null!=e?e:{})).embeddedWrite=null!==(n=e.embeddedWrite)&&void 0!==n?n:Ft,Ot.stringify(qt(t),e)}function Tt(t,...e){const n=[t[0]];return e.forEach(((e,r)=>{n.push(Nt(e)),n.push(t[r+1])})),n.join("")}[c,g,Y,st].forEach((t=>{t.prototype.toString=function(){return Nt(this)}}));const Rt=BigInt(Number.MAX_SAFE_INTEGER),Vt=BigInt(Number.MIN_SAFE_INTEGER),Pt=/^([-+]?\d+)((\.\d+([eE][-+]?\d+)?)|([eE][-+]?\d+))?$/;class zt{constructor(t,e){switch(this.discarded=0,this.buffer=t,typeof e.name){case"undefined":this.pos=i();break;case"string":this.pos=i(e.name);break;case"object":this.pos=Object.assign({},e.name)}this.index=0,this.options=e}error(t,e){throw new E(t,Object.assign({},e))}get includeAnnotations(){var t;return null!==(t=this.options.includeAnnotations)&&void 0!==t&&t}copyPos(){return Object.assign({},this.pos)}write(t){this.atEnd()?this.buffer=t:this.buffer=this.buffer.substring(this.index)+t,this.discarded+=this.index,this.index=0}atEnd(){return this.index>=this.buffer.length}peek(){if(this.atEnd())throw new I("Short term",this.pos);return this.buffer[this.index]}advance(){const t=this.index++;return o(this.pos,this.buffer[t]),t}nextchar(){if(this.atEnd())throw new I("Short term",this.pos);return this.buffer[this.advance()]}nextcharcode(){if(this.atEnd())throw new I("Short term",this.pos);return this.buffer.charCodeAt(this.advance())}skipws(t=!1){for(;!this.atEnd();){const e=this.peek();if(!(Lt(e)||t&&","===e))break;this.advance()}}readHex2(){return _(this.nextcharcode(),E)<<4|_(this.nextcharcode(),E)}readHex4(){return _(this.nextcharcode(),E)<<12|_(this.nextcharcode(),E)<<8|_(this.nextcharcode(),E)<<4|_(this.nextcharcode(),E)}readHexBinary(){const t=[];for(;;){if(this.skipws(),'"'===this.peek())return this.advance(),g.from(t);t.push(this.readHex2())}}readHexFloat(){const t=this.copyPos();'"'!==this.nextchar()&&this.error("Missing open-double-quote in hex-encoded floating-point number",t);const e=this.readHexBinary();return 8!==e.length&&this.error("Incorrect number of bytes in hex-encoded Double",t),pt.fromBytes(e)}readBase64Binary(){let t="";for(;;){this.skipws();const e=this.nextchar();if("]"===e)break;t+=e}return g.fromBase64(t)}requireDelimiter(t){this.delimiterFollows()||this.error(`Delimiter must follow ${t}`,this.pos)}delimiterFollows(){if(this.atEnd())return!0;const t=this.peek();return-1!=='(){}[]<>";,@#:|'.indexOf(t)||Lt(t)}readRawSymbolOrNumber(t){for(;!this.delimiterFollows();)t+=this.nextchar();const e=Pt.exec(t);if(e){if(void 0===e[2]){let t=BigInt(e[1]);return t<=Vt||t>=Rt?t:Number(t)}return yt(parseFloat(t))}return Symbol.for(t)}readStringlike(t,e,n,r,s){let i=[];for(;;){const o=this.nextchar();switch(o){case n:return e(i);case"\\":{const e=this.nextchar();switch(e){case r:i.push(s());break;case n:case"\\":case"/":i.push(t(e));break;case"b":i.push(t("\b"));break;case"f":i.push(t("\f"));break;case"n":i.push(t("\n"));break;case"r":i.push(t("\r"));break;case"t":i.push(t("\t"));break;default:this.error(`Invalid escape code \\${e}`,this.pos)}break}default:i.push(t(o))}}}readString(t){return this.readStringlike((t=>t),(t=>t.join("")),t,"u",(()=>{const t=this.readHex4();if(t>=55296&&t<=57343){if("\\"===this.nextchar()&&"u"===this.nextchar()){const e=this.readHex4();if(e>=56320&&e<=57343&&t<=56319)return String.fromCharCode(t,e)}this.error("Invalid surrogate pair",this.pos)}return String.fromCharCode(t)}))}readLiteralBinary(){return this.readStringlike((t=>{const e=t.charCodeAt(0);return e>=256&&this.error(`Invalid code point ${e} in literal binary`,this.pos),e}),g.from,'"',"x",(()=>this.readHex2()))}}const Ht={decode(t){return new At(new gt(t,this).next())},fromValue:(t,e)=>new At(e.includeAnnotations?t:Bt(t))};class Wt{constructor(t="",e){var n,r;if(t instanceof zt)this.state=t,this.embeddedType=e;else{const s=null!==(n=e)&&void 0!==n?n:{};this.state=new zt(t,s),this.embeddedType=null!==(r=s.embeddedDecode)&&void 0!==r?r:wt}}write(t){this.state.write(t)}readCommentLine(){const t=this.state.copyPos();let e="";for(;;){const n=this.state.nextchar();if("\n"===n||"\r"===n)return this.wrap(e,t);e+=n}}wrap(t,e){return this.state.includeAnnotations&&!c.isAnnotated(t)&&(t=new c(t,e)),t}annotateNextWith(t){if(this.state.skipws(),this.state.atEnd())throw new E("Trailing annotations and comments are not permitted",this.state.pos);const e=this.next();return this.state.includeAnnotations&&e.annotations.unshift(t),e}readToEnd(){const t=[];for(;;){if(this.state.skipws(),this.state.atEnd())return t;t.push(this.next())}}next(){this.state.skipws();const t=this.state.copyPos(),e=(()=>{const e=this.state.nextchar();switch(e){case'"':return this.state.readString('"');case"|":return Symbol.for(this.state.readString("|"));case";":this.state.error("Semicolon is reserved syntax",t);case"@":return this.annotateNextWith(this.next());case":":this.state.error("Unexpected key/value separator between items",t);case"#":{const e=this.state.nextchar();switch(e){case" ":case"\t":return this.annotateNextWith(this.readCommentLine());case"\n":case"\r":return this.annotateNextWith("");case"!":return this.annotateNextWith(D(Symbol.for("interpreter"),[this.readCommentLine()]));case"f":return this.state.requireDelimiter("#f"),!1;case"t":return this.state.requireDelimiter("#t"),!0;case"{":return this.readSet();case'"':return this.state.readLiteralBinary();case"x":switch(this.state.nextchar()){case'"':return this.state.readHexBinary();case"d":return this.state.readHexFloat();default:this.state.error("Invalid #x syntax",t)}case"[":return this.state.readBase64Binary();case":":return this.embeddedType.fromValue(new Wt(this.state,Ht).next(),this.state.options);default:this.state.error(`Invalid # syntax: ${e}`,t)}}case"<":return D(this.next(),this.readSequence(">",!1));case"[":return this.readSequence("]",!0);case"{":return this.readDictionary();case">":this.state.error("Unexpected >",t);case"]":this.state.error("Unexpected ]",t);case"}":this.state.error("Unexpected }",t);case",":this.state.error("Unexpected ,",t);default:return this.state.readRawSymbolOrNumber(e)}})();return this.wrap(e,t)}seq(t,e,n,r){for(;;){if(this.state.skipws(t),this.state.peek()===r)return this.state.advance(),e;n(this.next(),e)}}readSequence(t,e){return this.seq(e,[],((t,e)=>e.push(t)),t)}readDictionary(){return this.seq(!0,new tt,((t,e)=>{if(this.state.skipws(),":"===this.state.peek())e.has(t)&&this.state.error(`Duplicate key: ${Nt(t)}`,this.state.pos),this.state.advance(),e.set(t,this.next());else this.state.error("Missing key/value separator",this.state.pos)}),"}")}readSet(){return this.seq(!0,new it,((t,e)=>{e.has(t)&&this.state.error(`Duplicate value in set: ${Nt(t)}`,this.state.pos),e.add(t)}),"}")}}function Lt(t){return-1!==" \t\n\r".indexOf(t)}const $t=Object.assign({},Ht,Dt),Kt=Object.assign({},wt,Ct),Gt={decode(t){throw new Error("Cannot decode identityEmbeddedType")},fromValue(t,e){throw new Error("Cannot decode identityEmbeddedType")}},Jt=Object.assign({},Gt,U);var 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are not permitted",this.state.pos);const e=this.next();return this.state.includeAnnotations&&e.annotations.unshift(t),e}readToEnd(){const t=[];for(;;){if(this.state.skipws(),this.state.atEnd())return t;t.push(this.next())}}next(){this.state.skipws();const t=this.state.copyPos(),e=(()=>{const e=this.state.nextchar();switch(e){case'"':return this.state.readString('"');case"|":return Symbol.for(this.state.readString("|"));case";":this.state.error("Semicolon is reserved syntax",t);case"@":return this.annotateNextWith(this.next());case":":this.state.error("Unexpected key/value separator between items",t);case"#":{const e=this.state.nextchar();switch(e){case" ":case"\t":return this.annotateNextWith(this.readCommentLine());case"\n":case"\r":return this.annotateNextWith("");case"!":return this.annotateNextWith(g(Symbol.for("interpreter"),[this.readCommentLine()]));case"f":return this.state.requireDelimiter("#f"),!1;case"t":return this.state.requireDelimiter("#t"),!0;case"{":return this.readSet();case'"':return this.state.readLiteralBinary();case"x":switch(this.state.nextchar()){case'"':return this.state.readHexBinary();case"d":return this.state.readHexFloat();default:this.state.error("Invalid #x syntax",t)}case"[":return this.state.readBase64Binary();case":":return this.embeddedType.fromValue(new Dt(this.state,It).next(),this.state.options);default:this.state.error(`Invalid # syntax: ${e}`,t)}}case"<":return g(this.next(),this.readSequence(">",!1));case"[":return this.readSequence("]",!0);case"{":return this.readDictionary();case">":this.state.error("Unexpected >",t);case"]":this.state.error("Unexpected ]",t);case"}":this.state.error("Unexpected }",t);case",":this.state.error("Unexpected ,",t);default:return this.state.readRawSymbolOrNumber(e)}})();return this.wrap(e,t)}seq(t,e,n,r){for(;;){if(this.state.skipws(t),this.state.peek()===r)return this.state.advance(),e;n(this.next(),e)}}readSequence(t,e){return this.seq(e,[],((t,e)=>e.push(t)),t)}readDictionary(){return this.seq(!0,new Q,((t,e)=>{if(this.state.skipws(),":"===this.state.peek())this.state.advance(),e.has(t)&&this.state.error(`Duplicate key: ${Pt(t)}`,this.state.pos),e.set(t,this.next());else this.state.error("Missing key/value separator",this.state.pos)}),"}").simplifiedValue()}readSet(){return this.seq(!0,new st,((t,e)=>{e.has(t)&&this.state.error(`Duplicate value in set: ${Pt(t)}`,this.state.pos),e.add(t)}),"}")}}function Ct(t){return-1!==" \t\n\r".indexOf(t)}function Ot(t){return"object"==typeof t&&null!==t&&"__preserve_text_on__"in t&&"function"==typeof t.__preserve_text_on__}const Mt={encode(t,e){new C(t,this).push(e.generic)},toValue:t=>t.generic},qt={encode(t,e){throw new Error("Embeddeds not permitted encoding Preserves document")},toValue(t){throw new Error("Embeddeds not permitted writing Preserves document")}};class Tt{constructor(t){var e;this.pieces=[],this.indentCount=0,this.options=t,this.indentDelta=" ".repeat(null!==(e=t.indent)&&void 0!==e?e:0)}get isIndenting(){return this.indentDelta.length>0}get includeAnnotations(){var t;return null===(t=this.options.includeAnnotations)||void 0===t||t}writeIndent(){if(this.isIndenting){this.pieces.push("\n");for(let t=0;t<this.indentCount;t++)this.pieces.push(this.indentDelta)}}writeIndentSpace(){this.isIndenting?this.writeIndent():this.pieces.push(" ")}escapeStringlikeChar(t,e=(t=>t)){switch(t){case"\\":return"\\\\";case"\b":return"\\b";case"\f":return"\\f";case"\n":return"\\n";case"\r":return"\\r";case"\t":return"\\t";default:return e(t)}}escapeStringlike(t,e){let n=e;for(let r of t)n+=r===e?"\\"+e:this.escapeStringlikeChar(r);return n+e}writeSeq(t,e,n,r){let s=n[Symbol.iterator]();this.pieces.push(t);const i=s.next();if(!0!==i.done){const t=i.value,e=s.next();if(!0===e.done)r(t);else{let n;for(this.indentCount++,this.writeIndent(),r(t),this.writeIndentSpace(),r(e.value);!0!==(n=s.next()).done;)this.writeIndentSpace(),r(n.value);this.indentCount--,this.writeIndent()}}this.pieces.push(e)}writeBytes(t){var e,n;const r=null!==(e=this.options.maxBinaryAsciiLength)&&void 0!==e?e:1024,s=null!==(n=this.options.maxBinaryAsciiProportion)&&void 0!==n?n:.75;if(t.length>=r)this.writeBase64(t);else{let e=0,n=Math.min(t.length,r);for(let r=0;r<n;r++){const n=t[r];switch(n){case 9:case 10:case 13:e++;break;default:n>=32&&n<=126&&e++}}0===n||e/n>=s?this.writeBinaryStringlike(t):this.writeBase64(t)}}writeBase64(t){this.pieces.push("#[",i(t),"]")}writeBinaryStringlike(t){let e='#"';for(let n of t)e+=34===n?'\\"':this.escapeStringlikeChar(String.fromCharCode(n),(t=>n>=32&&n<=126&&92!==n?t:"\\x"+("0"+n.toString(16)).slice(-2)));this.pieces.push(e+'"')}couldBeFlat(t){let e=!1;for(let n of t){if(Array.isArray(n)||Set.isSet(n)||Map.isMap(n)){if(e)return!1;e=!0}if(this.includeAnnotations&&ut(n)&&n.annotations.length>1)return!1}return!0}}class Ut{constructor(t={},e){var n;t instanceof Tt?(this.state=t,this.embeddedWrite=e):(this.state=new Tt(t),this.embeddedWrite=null!==(n=t.embeddedWrite)&&void 0!==n?n:qt)}static stringify(t,e){const n=new Ut(e);return n.push(t),n.contents()}contents(){return this.state.pieces.join("")}get includeAnnotations(){return this.state.includeAnnotations}push(t){switch(typeof t){case"boolean":this.state.pieces.push(t?"#t":"#f");break;case"string":this.state.pieces.push(this.state.escapeStringlike(t,'"'));break;case"symbol":{const e=t.description;/^[-a-zA-Z0-9~!$%^&*?_=+/.]+$/.exec(e)&&!jt.exec(e)?this.state.pieces.push(e):this.state.pieces.push(this.state.escapeStringlike(e,"|"));break}case"bigint":case"number":this.state.pieces.push(""+t);break;case"object":if(null===t)throw new Error("Cannot encode null in Preserves Writer.push");if(Ot(t))t.__preserve_text_on__(this);else if(Ot(t))t.__preserve_text_on__(this);else if(ArrayBuffer.isView(t))if(t instanceof Uint8Array)this.state.writeBytes(t);else{const e=new Uint8Array(t.buffer,t.byteOffset,t.byteLength);this.state.writeBytes(e)}else if(g.isRecord(t)){const e=this.state.couldBeFlat(t);this.state.pieces.push("<"),this.push(t.label),e||this.state.indentCount++;for(let n of t)e?this.state.pieces.push(" "):this.state.writeIndentSpace(),this.push(n);e||this.state.indentCount--,this.state.pieces.push(">")}else!function(t){return"object"==typeof t&&null!==t&&"function"==typeof t[Symbol.iterator]}(t)?_(t)?(this.state.pieces.push("#:"),"write"in this.embeddedWrite?this.embeddedWrite.write(this.state,t):new Ut(this.state,Mt).push(this.embeddedWrite.toValue(t))):et(new Q(t),this,((t,e)=>e.push(t)),((t,e)=>e.push(t))):this.state.writeSeq("[","]",t,(t=>this.push(t)));break;default:(e=>{throw new Error(`Internal error: unhandled in Preserves Writer.push for ${t}`)})()}return this}}function Vt(t){switch(typeof t){case"number":if(!Number.isInteger(t))throw new TypeError("Refusing to autoconvert non-integer number to Double");case"bigint":case"string":case"symbol":case"boolean":return t;case"undefined":case"function":break;case"object":if(null===t)break;if("function"==typeof t.__as_preserve__)return t.__as_preserve__();if(g.isRecord(t))return t;if(Array.isArray(t))return t.map(Vt);if(ArrayBuffer.isView(t)||t instanceof ArrayBuffer)return c.from(t);if(Map.isMap(t)){const e=new Z;return t.forEach(((t,n)=>e.set(Vt(n),Vt(t)))),e}if(st.isSet(t)){const e=new st;return t.forEach((t=>e.add(Vt(t)))),e}if(_(t))return t;{const e={};return Object.entries(t).forEach((([t,n])=>e[t]=Vt(n))),e}}throw new TypeError("Cannot represent JavaScript value as Preserves: "+t)}function Nt(t,e){return new Dt(t,e).next()}function Ft(t,e){return new Dt(t,e).readToEnd()}Y.stringMap=function(t){const e=new Z;return Object.entries(t).forEach((([t,n])=>e.set(t,Vt(n)))),e};const zt={write(t,e){if(e instanceof S)new Ut(t,this).push(e.generic);else{try{const n=Vt(e);if(!_(n))return void new Ut(t,this).push(n)}catch(t){}try{return void t.pieces.push(JSON.stringify(e))}catch(t){}t.pieces.push("⌜"+e+"⌝")}}};function Pt(t,e){var n;return(e=Object.assign({},null!=e?e:{})).embeddedWrite=null!==(n=e.embeddedWrite)&&void 0!==n?n:zt,Ut.stringify(Vt(t),e)}function Rt(t,...e){const n=[t[0]];return e.forEach(((e,r)=>{n.push(Pt(e)),n.push(t[r+1])})),n.join("")}function Ht(t,e){return ct(t,e)?e:void 0}[ft,c,Z,rt].forEach((t=>{t.prototype.toString=function(){return Pt(this)}}));class Wt{constructor(t,e){this.index=0,this.packet=d(t),this.options=e}get includeAnnotations(){var t;return null!==(t=this.options.includeAnnotations)&&void 0!==t&&t}write(t){this.index===this.packet.length?this.packet=d(t):this.packet=c.concat([this.packet.slice(this.index),t])._view,this.index=0}atEnd(){return this.index>=this.packet.length}mark(){return this.index}restoreMark(t){this.index=t}shortGuard(t,e){if(this.atEnd())return e();const n=this.mark();try{return t()}catch(t){if(w.isShortPacket(t))return this.restoreMark(n),e();throw t}}nextbyte(){if(this.atEnd())throw new w("Short packet");return this.packet[this.index++]}nextbytes(t){const e=this.index;if(this.index+=t,this.index>this.packet.length)throw new w("Short packet");return new DataView(this.packet.buffer,this.packet.byteOffset+e,t)}varint(){const t=this.nextbyte();return t<128?t:(this.varint()<<7)+(t-128)}peekend(){return this.nextbyte()===t.End||(this.index--,!1)}nextint(t){const e=this.index;if(0===t)return 0;if(t>7)return this.nextbigint(t);if(7===t){const e=this.packet[this.index];if(e>=32&&e<224)return this.nextbigint(t)}let n=this.nextbyte();128&n&&(n-=256);for(let e=1;e<t;e++)n=256*n+this.nextbyte();return Number.isSafeInteger(n)?n:(this.index=e,this.nextbigint(t))}nextbigint(t){if(0===t)return BigInt(0);const e=c.from(this.nextbytes(t));if(e.get(0)>=128){const t=e.toHex((t=>h(15-t)));return~BigInt("0x"+t)}{const t=e.toHex();return BigInt("0x"+t)}}wrap(t){return this.includeAnnotations?new ft(t):t}unshiftAnnotation(t,e){return this.includeAnnotations&&e.annotations.unshift(t),e}}const Lt={decode(t){throw new Error("Embeddeds not permitted at this point in Preserves document")},fromValue(t,e){throw new Error("Embeddeds not permitted at this point in Preserves document")}};class $t{constructor(t=new Uint8Array(0),e){var n,r,s;if(t instanceof Wt)this.state=t,this.embeddedDecode=null!==(n=e)&&void 0!==n?n:Lt;else{const n=null!==(r=e)&&void 0!==r?r:{};this.state=new Wt(t,n),this.embeddedDecode=null!==(s=n.embeddedDecode)&&void 0!==s?s:Lt}}write(t){this.state.write(t)}nextvalues(){const t=[];for(;!this.state.peekend();)t.push(this.next());return t}static dictionaryFromArray(t){const e=new Q;if(t.length%2)throw new m("Missing dictionary value");for(let n=0;n<t.length;n+=2){if(e.has(t[n]))throw new m(`Duplicate key: ${Pt(t[n])}`);e.set(t[n],t[n+1])}return e.simplifiedValue()}next(){const e=this.state.nextbyte();switch(e){case t.False:return this.state.wrap(!1);case t.True:return this.state.wrap(!0);case t.End:throw new m("Unexpected Compound end marker");case t.Annotation:{const t=this.next(),e=this.next();return this.state.unshiftAnnotation(t,e)}case t.Embedded:return this.state.wrap(this.embeddedDecode.decode(this.state));case t.Ieee754:if(8===this.state.varint())return this.state.wrap(St.fromBytes(this.state.nextbytes(8)));throw new m("Invalid IEEE754 size");case t.SignedInteger:return this.state.wrap(this.state.nextint(this.state.varint()));case t.String:return this.state.wrap(c.from(this.state.nextbytes(this.state.varint())).fromUtf8());case t.ByteString:return this.state.wrap(c.from(this.state.nextbytes(this.state.varint())));case t.Symbol:return this.state.wrap(Symbol.for(c.from(this.state.nextbytes(this.state.varint())).fromUtf8()));case t.Record:{const t=this.nextvalues();if(0===t.length)throw new m("Too few elements in encoded record");return this.state.wrap(g(t[0],t.slice(1)))}case t.Sequence:return this.state.wrap(this.nextvalues());case t.Set:{const t=new st;for(const e of this.nextvalues()){if(t.has(e))throw new m(`Duplicate value: ${Pt(e)}`);t.add(e)}return this.state.wrap(t)}case t.Dictionary:return this.state.wrap($t.dictionaryFromArray(this.nextvalues()));default:throw new m("Unsupported Preserves tag: "+e)}}try_next(){return this.state.shortGuard((()=>this.next()),(()=>{}))}atEnd(){return this.state.atEnd()}mark(){return this.state.mark()}restoreMark(t){return this.state.restoreMark(t)}skip(){this.next()}withEmbeddedDecode(t,e){return e(new $t(this.state,t))}skipAnnotations(e){const n=this.mark();for(;!this.state.atEnd()&&this.state.packet[this.state.index]===t.Annotation;)this.state.index++,this.skip();return e((()=>this.restoreMark(n)))}nextBoolean(){return this.skipAnnotations((e=>{switch(this.state.nextbyte()){case t.False:return!1;case t.True:return!0;default:return e()}}))}nextDouble(){return this.skipAnnotations((e=>this.state.nextbyte()!==t.Ieee754||8!==this.state.nextbyte()?e():St.fromBytes(this.state.nextbytes(8))))}nextEmbedded(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Embedded?this.embeddedDecode.decode(this.state):e()))}nextSignedInteger(){return this.skipAnnotations((e=>this.state.nextbyte()===t.SignedInteger?this.state.nextint(this.state.varint()):e()))}nextString(){return this.skipAnnotations((e=>this.state.nextbyte()===t.String?c.from(this.state.nextbytes(this.state.varint())).fromUtf8():e()))}nextByteString(){return this.skipAnnotations((e=>this.state.nextbyte()===t.ByteString?c.from(this.state.nextbytes(this.state.varint())):e()))}nextSymbol(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Symbol?Symbol.for(c.from(this.state.nextbytes(this.state.varint())).fromUtf8()):e()))}openRecord(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Record||(e(),!1)))}openSequence(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Sequence||(e(),!1)))}openSet(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Set||(e(),!1)))}openDictionary(){return this.skipAnnotations((e=>this.state.nextbyte()===t.Dictionary||(e(),!1)))}closeCompound(){return this.state.peekend()}}function Kt(t,e={}){return new $t(t,e).next()}function Jt(t,e={}){return Kt(t,Object.assign(Object.assign({},e),{includeAnnotations:!0}))}const Gt=Object.assign({},It,Mt),Xt=Object.assign({},Lt,qt),Zt={decode(t){throw new Error("Cannot decode identityEmbeddedType")},fromValue(t,e){throw new Error("Cannot decode identityEmbeddedType")}},Qt=Object.assign({},Zt,I);var Yt;!function(t){t[t.Boolean=0]="Boolean",t[t.Double=1]="Double",t[t.SignedInteger=2]="SignedInteger",t[t.String=3]="String",t[t.ByteString=4]="ByteString",t[t.Symbol=5]="Symbol",t[t.Record=6]="Record",t[t.Sequence=7]="Sequence",t[t.Set=8]="Set",t[t.Dictionary=9]="Dictionary",t[t.Embedded=10]="Embedded",t[t.Annotated=11]="Annotated"}(Yt||(Yt={}));class te{boolean(t){}double(t){}integer(t){}string(t){}bytes(t){}symbol(t){}record(t,e){e(t.label),t.forEach(e)}array(t,e){t.forEach(e)}set(t,e){t.forEach(e)}dictionary(t,e){t.forEach(((t,n)=>{e(n),e(t)}))}annotated(t,e){e(t.item),t.annotations.forEach(e)}embedded(t,e){}}class ee extends te{constructor(t){super(),this.f=t}embedded(t,e){this.f(t,e)}}class ne{boolean(t){return t}double(t){return kt(t)}integer(t){return t}string(t){return t}bytes(t){return t}symbol(t){return t}record(t,e){return g(e(t.label),t.map(e))}array(t,e){return t.map(e)}set(t,e){return t.map(e)}dictionary(t,e){const n=new Q;return t.forEach(((t,r)=>n.set(e(r),e(t)))),n.simplifiedValue()}annotated(t,e){return pt(e(t.item),...t.annotations.map(e))}}class re extends ne{embedded(t,e){return t}}class se extends ne{constructor(t){super(),this.f=t}embedded(t,e){return this.f(t)}}function ie(t){switch(typeof t){case"boolean":return Yt.Boolean;case"number":if(Number.isInteger(t))return Yt.SignedInteger;throw new Error("Non-integer number in Preserves valueClass; missing Float wrapper?");case"bigint":return Yt.SignedInteger;case"string":return Yt.String;case"symbol":return Yt.Symbol;case"object":return g.isRecord(t)?Yt.Record:Array.isArray(t)?Yt.Sequence:st.isSet(t)?Yt.Set:Y.isDictionary(t)?Yt.Dictionary:ft.isAnnotated(t)?Yt.Annotated:c.isBytes(t)?Yt.ByteString:vt.isDouble(t)?Yt.Double:Yt.Embedded;default:(t=>{throw new Error("Internal error")})()}}const oe=new re;function ae(t,e){const n=t=>{switch(typeof t){case"boolean":return e.boolean(t);case"number":return Number.isInteger(t)?e.integer(t):e.double(t);case"bigint":return e.integer(t);case"string":return e.string(t);case"symbol":return e.symbol(t);case"object":if(g.isRecord(t))return e.record(t,n);if(Array.isArray(t))return e.array(t,n);if(st.isSet(t))return e.set(t,n);if(_(t))return e.embedded(t,n);if(ft.isAnnotated(t))return e.annotated(t,n);if(c.isBytes(t))return e.bytes(t);if(vt.isDouble(t))return e.double(t.value);if(Y.isDictionary(t))return e.dictionary(new Q(t),n);default:(t=>{throw new Error("Internal error")})()}};return n(t)}function ue(t,e){return ae(t,new se(e))}function ce(t,e){return ae(t,new ee(e))}function he(t,e,...n){function r(){throw new Error("Cannot merge items")}function s(e,n){return e===n?e:bt(e)||bt(n)||!ct(e,n)?ae(e,{boolean:r,double:t=>ct(e,n)?e:r(),integer:r,string:r,bytes:t=>ct(e,n)?e:r(),symbol:r,record:t=>(g.isRecord(n)||r(),g(s(t.label,n.label),i(t,n))),array:t=>(Array.isArray(n)&&!g.isRecord(n)||r(),i(t,n)),set(t){r()},dictionary(t){const e=Y.asMap(n);void 0===e&&r();const i=new Q;return t.forEach(((t,n)=>{const r=e.get(n);i.set(n,void 0===r?t:s(t,r))})),e.forEach(((e,n)=>{t.has(n)||i.set(n,e)})),i.simplifiedValue()},annotated:t=>s(t,$(n)),embedded(e){_(n)||r();const s=t(e,n);return void 0===s&&r(),s}}):e}function i(t,e){return t.length<=e.length?e.map(((e,n)=>n<t.length?s(t[n],e):e)):t.map(((t,n)=>n<e.length?s(t,e[n]):t))}return n.reduce(s,e)}function le(t){switch(ut(t)&&(t=t.item),typeof t){case"boolean":return 0;case"number":case"bigint":return 3;case"string":return 4;case"symbol":return 6;case"object":if(vt.isFloat(t))return 2;if(c.isBytes(t))return 5;if(Array.isArray(t))return"label"in t?7:8;if(st.isSet(t))return 9;if(Y.isDictionary(t))return 10;if(_(t))return 11;default:throw new Error("Invalid Value<T> in typeCode")}}function de(t,e,n=((t,e)=>ct(t,e)?0:t<e?-1:1)){return function t(e,r){ut(e)&&(e=e.item),ut(r)&&(r=r.item);const s=le(e),i=le(r);if(s<i)return-1;if(s>i)return 1;switch(s){case 0:case 3:case 4:return e<r?-1:e>r?1:0;case 2:{const t=e.value,n=r.value;return t<n?-1:t>n?1:0}case 5:return c.compare(e,r);case 6:{const t=e.description,n=r.description;return t<n?-1:t>n?1:0}case 7:{const n=t(e.label,r.label);if(0!==n)return n}case 8:{const n=e,s=r,i=Math.min(n.length,s.length);for(let e=0;e<i;e++){const r=t(n[e],s[e]);if(0!==r)return r}return n.length<s.length?-1:n.length>s.length?1:0}case 9:return t(Array.from(e).sort(t),Array.from(r).sort(t));case 10:return t(Array.from(Y.asMap(e).entries()).sort(t),Array.from(Y.asMap(r).entries()).sort(t));case 11:return n(e,r);default:throw new Error("Invalid typeCode: "+s)}}(t,e)}Array.__from_preserve__=t=>Array.isArray(t)?t:void 0;const fe=Array,pe=Symbol;export{ft as Annotated,fe as Array,c as Bytes,e as Constants,m as DecodeError,$t as Decoder,Wt as DecoderState,Y as Dictionary,Q as DictionaryMap,G as DictionaryType,kt as Double,St as DoubleFloat,x as Embedded,X as EncodableDictionary,nt as EncodableSet,b as EncodeError,C as Encoder,D as EncoderState,p as ErrorType,H as FlexMap,W as FlexSet,vt as Float,gt as FloatType,ee as ForEachEmbedded,S as GenericEmbedded,oe as IDENTITY_FOLD,re as IdentityFold,N as IdentityMap,F as IdentitySet,v as IsEmbedded,z as IsMap,at as IsPreservesAnnotated,u as IsPreservesBytes,P as IsSet,L as JsDictionary,Z as KeyedDictionary,rt as KeyedSet,se as MapFold,jt as NUMBER_RE,y as PreservesCodecError,Dt as Reader,Bt as ReaderState,g as Record,st as Set,w as ShortPacket,pe as Symbol,Yt as ValueClass,ne as ValueFold,te as VoidFold,Ut as Writer,Tt as WriterState,R as _iterMap,pt as annotate,yt as annotations,Ht as asLiteral,T as canonicalEncode,U as canonicalString,de as compare,f as dataview,Kt as decode,r as decodeBase64,Jt as decodeWithAnnotations,B as embeddedId,O as encode,i as encodeBase64,tt as encodeDictionaryOn,it as encodeSetOn,V as encodeWithAnnotations,_t as floatValue,xt as floatlikeString,ae as fold,ce as forEachEmbedded,dt as formatPosition,Vt as fromJS,Gt as genericEmbeddedType,It as genericEmbeddedTypeDecode,Mt as genericEmbeddedTypeEncode,h as hexDigit,Qt as identityEmbeddedType,Zt as identityEmbeddedTypeDecode,I as identityEmbeddedTypeEncode,ct as is,ut as isAnnotated,bt as isCompound,_ as isEmbedded,k as isPreservable,Ot as isPreserveWritable,wt as isSequence,ue as mapEmbeddeds,he as merge,Xt as neverEmbeddedType,Lt as neverEmbeddedTypeDecode,qt as neverEmbeddedTypeEncode,ht as newPosition,Nt as parse,Ft as parseAll,K as peel,mt as position,Rt as preserves,Pt as stringify,zt as stringifyEmbeddedWrite,J as strip,le as typeCode,$ as unannotate,d as underlying,l as unhexDigit,lt as updatePosition,ie as valueClass,et as writeDictionaryOn,ot as writeSetOn};

dist/preserves.min.js

@@ -1,1 +0,1 @@
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e){if(Array.isArray(n)||Set.isSet(n)||Map.isMap(n)){if(t)return!1;t=!0}if(this.includeAnnotations&&s(n)&&n.annotations.length>1)return!1}return!0}}class Se{constructor(e={},t){var n;e instanceof xe?(this.state=e,this.embeddedWrite=t):(this.state=new xe(e),this.embeddedWrite=null!==(n=e.embeddedWrite)&&void 0!==n?n:_e)}static stringify(e,t){const n=new Se(t);return n.push(e),n.contents()}contents(){return this.state.pieces.join("")}get includeAnnotations(){return this.state.includeAnnotations}push(e){switch(typeof e){case"boolean":this.state.pieces.push(e?"#t":"#f");break;case"string":this.state.pieces.push(this.state.escapeStringlike(e,'"'));break;case"symbol":{const t=e.description;/^[-a-zA-Z0-9~!$%^&*?_=+/.]+$/.exec(t)&&!Be.exec(t)?this.state.pieces.push(t):this.state.pieces.push(this.state.escapeStringlike(t,"|"));break}case"bigint":case"number":this.state.pieces.push(""+e);break;case"object":if(null===e)throw new Error("Cannot encode null in Preserves 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e){case"number":if(!Number.isInteger(e))throw new TypeError("Refusing to autoconvert non-integer number to Double");case"bigint":case"string":case"symbol":case"boolean":return e;case"undefined":case"function":break;case"object":if(null===e)break;if("function"==typeof e.__as_preserve__)return e.__as_preserve__();if(I.isRecord(e))return e;if(Array.isArray(e))return e.map(Ee);if(ArrayBuffer.isView(e)||e instanceof ArrayBuffer)return g.from(e);if(Map.isMap(e)){const t=new Y;return e.forEach(((e,n)=>t.set(Ee(n),Ee(e)))),t}if(ne.isSet(e)){const t=new ne;return e.forEach((e=>t.add(Ee(e)))),t}return e}throw new TypeError("Cannot represent JavaScript value as Preserves: "+e)}Y.fromJS=function(e){if(Y.isDictionary(e))return e;const t=new Y;return Object.entries(e).forEach((([e,n])=>t.set(e,Ee(n)))),t};const Ae={write(e,t){if(t instanceof me)new Se(e,this).push(t.generic);else{try{const n=Ee(t);if(!ye(n))return void new Se(e,this).push(n)}catch(e){}try{return void 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this.index>=this.buffer.length}peek(){if(this.atEnd())throw new D("Short term",this.pos);return this.buffer[this.index]}advance(){const e=this.index++;return a(this.pos,this.buffer[e]),e}nextchar(){if(this.atEnd())throw new D("Short term",this.pos);return this.buffer[this.advance()]}nextcharcode(){if(this.atEnd())throw new D("Short term",this.pos);return this.buffer.charCodeAt(this.advance())}skipws(e=!1){for(;!this.atEnd();){const t=this.peek();if(!(Ve(t)||e&&","===t))break;this.advance()}}readHex2(){return v(this.nextcharcode(),A)<<4|v(this.nextcharcode(),A)}readHex4(){return v(this.nextcharcode(),A)<<12|v(this.nextcharcode(),A)<<8|v(this.nextcharcode(),A)<<4|v(this.nextcharcode(),A)}readHexBinary(){const e=[];for(;;){if(this.skipws(),'"'===this.peek())return this.advance(),g.from(e);e.push(this.readHex2())}}readHexFloat(){const e=this.copyPos();'"'!==this.nextchar()&&this.error("Missing open-double-quote in hex-encoded floating-point number",e);const t=this.readHexBinary();return 8!==t.length&&this.error("Incorrect number of bytes in hex-encoded Double",e),ue.fromBytes(t)}readBase64Binary(){let e="";for(;;){this.skipws();const t=this.nextchar();if("]"===t)break;e+=t}return g.fromBase64(e)}requireDelimiter(e){this.delimiterFollows()||this.error(`Delimiter must follow ${e}`,this.pos)}delimiterFollows(){if(this.atEnd())return!0;const e=this.peek();return-1!=='(){}[]<>";,@#:|'.indexOf(e)||Ve(e)}readRawSymbolOrNumber(e){for(;!this.delimiterFollows();)e+=this.nextchar();const t=Be.exec(e);if(t){if(void 0===t[2]){let e=BigInt(t[1]);return e<=Ie||e>=De?e:Number(e)}return he(parseFloat(e))}return Symbol.for(e)}readStringlike(e,t,n,r,s){let i=[];for(;;){const o=this.nextchar();switch(o){case n:return t(i);case"\\":{const t=this.nextchar();switch(t){case r:i.push(s());break;case n:case"\\":case"/":i.push(e(t));break;case"b":i.push(e("\b"));break;case"f":i.push(e("\f"));break;case"n":i.push(e("\n"));break;case"r":i.push(e("\r"));break;case"t":i.push(e("\t"));break;default:this.error(`Invalid escape code \\${t}`,this.pos)}break}default:i.push(e(o))}}}readString(e){return this.readStringlike((e=>e),(e=>e.join("")),e,"u",(()=>{const e=this.readHex4();if(e>=55296&&e<=57343){if("\\"===this.nextchar()&&"u"===this.nextchar()){const t=this.readHex4();if(t>=56320&&t<=57343&&e<=56319)return String.fromCharCode(e,t)}this.error("Invalid surrogate pair",this.pos)}return String.fromCharCode(e)}))}readLiteralBinary(){return this.readStringlike((e=>{const t=e.charCodeAt(0);return t>=256&&this.error(`Invalid code point ${t} in literal binary`,this.pos),t}),g.from,'"',"x",(()=>this.readHex2()))}}const Te={decode(e){return new me(new fe(e,this).next())},fromValue:(e,t)=>new me(t.includeAnnotations?e:ge(e))};class Oe{constructor(e="",t){var n,r;if(e instanceof Ce)this.state=e,this.embeddedType=t;else{const s=null!==(n=t)&&void 0!==n?n:{};this.state=new Ce(e,s),this.embeddedType=null!==(r=s.embeddedDecode)&&void 0!==r?r:le}}write(e){this.state.write(e)}readCommentLine(){const e=this.state.copyPos();let t="";for(;;){const n=this.state.nextchar();if("\n"===n||"\r"===n)return this.wrap(t,e);t+=n}}wrap(e,t){return this.state.includeAnnotations&&!c.isAnnotated(e)&&(e=new c(e,t)),e}annotateNextWith(e){if(this.state.skipws(),this.state.atEnd())throw new A("Trailing annotations and comments are not permitted",this.state.pos);const t=this.next();return this.state.includeAnnotations&&t.annotations.unshift(e),t}readToEnd(){const e=[];for(;;){if(this.state.skipws(),this.state.atEnd())return e;e.push(this.next())}}next(){this.state.skipws();const e=this.state.copyPos(),t=(()=>{const t=this.state.nextchar();switch(t){case'"':return this.state.readString('"');case"|":return Symbol.for(this.state.readString("|"));case";":this.state.error("Semicolon is 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I(this.next(),this.readSequence(">",!1));case"[":return this.readSequence("]",!0);case"{":return this.readDictionary();case">":this.state.error("Unexpected >",e);case"]":this.state.error("Unexpected ]",e);case"}":this.state.error("Unexpected }",e);case",":this.state.error("Unexpected ,",e);default:return this.state.readRawSymbolOrNumber(t)}})();return this.wrap(t,e)}seq(e,t,n,r){for(;;){if(this.state.skipws(e),this.state.peek()===r)return this.state.advance(),t;n(this.next(),t)}}readSequence(e,t){return this.seq(t,[],((e,t)=>t.push(e)),e)}readDictionary(){return this.seq(!0,new Y,((e,t)=>{if(this.state.skipws(),":"===this.state.peek())t.has(e)&&this.state.error(`Duplicate key: ${ke(e)}`,this.state.pos),this.state.advance(),t.set(e,this.next());else this.state.error("Missing key/value separator",this.state.pos)}),"}")}readSet(){return this.seq(!0,new ne,((e,t)=>{t.has(e)&&this.state.error(`Duplicate value in set: ${ke(e)}`,this.state.pos),t.add(e)}),"}")}}function Ve(e){return-1!==" 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this.readStringlike((t=>t),(t=>t.join("")),t,"u",(()=>{const t=this.readHex4();if(t>=55296&&t<=57343){if("\\"===this.nextchar()&&"u"===this.nextchar()){const e=this.readHex4();if(e>=56320&&e<=57343&&t<=56319)return String.fromCharCode(t,e)}this.error("Invalid surrogate pair",this.pos)}return String.fromCharCode(t)}))}readLiteralBinary(){return this.readStringlike((t=>{const e=t.charCodeAt(0);return e>=256&&this.error(`Invalid code point ${e} in literal binary`,this.pos),e}),h.from,'"',"x",(()=>this.readHex2()))}}const vt={decode(t){return new S(new Vt(t,this).next())},fromValue:(t,e)=>new S(e.includeAnnotations?t:W(t))};class _t{constructor(t="",e){var n,r;if(t instanceof wt)this.state=t,this.embeddedType=e;else{const i=null!==(n=e)&&void 0!==n?n:{};this.state=new wt(t,i),this.embeddedType=null!==(r=i.embeddedDecode)&&void 0!==r?r:Ot}}write(t){this.state.write(t)}readCommentLine(){const t=this.state.copyPos();let e="";for(;;){const n=this.state.nextchar();if("\n"===n||"\r"===n)return 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this.annotateNextWith("");case"!":return this.annotateNextWith(v(Symbol.for("interpreter"),[this.readCommentLine()]));case"f":return this.state.requireDelimiter("#f"),!1;case"t":return this.state.requireDelimiter("#t"),!0;case"{":return this.readSet();case'"':return this.state.readLiteralBinary();case"x":switch(this.state.nextchar()){case'"':return this.state.readHexBinary();case"d":return this.state.readHexFloat();default:this.state.error("Invalid #x syntax",t)}case"[":return this.state.readBase64Binary();case":":return this.embeddedType.fromValue(new _t(this.state,vt).next(),this.state.options);default:this.state.error(`Invalid # syntax: ${e}`,t)}}case"<":return v(this.next(),this.readSequence(">",!1));case"[":return this.readSequence("]",!0);case"{":return this.readDictionary();case">":this.state.error("Unexpected >",t);case"]":this.state.error("Unexpected ]",t);case"}":this.state.error("Unexpected }",t);case",":this.state.error("Unexpected ,",t);default:return this.state.readRawSymbolOrNumber(e)}})();return this.wrap(e,t)}seq(t,e,n,r){for(;;){if(this.state.skipws(t),this.state.peek()===r)return this.state.advance(),e;n(this.next(),e)}}readSequence(t,e){return this.seq(e,[],((t,e)=>e.push(t)),t)}readDictionary(){return this.seq(!0,new K,((t,e)=>{if(this.state.skipws(),":"===this.state.peek())this.state.advance(),e.has(t)&&this.state.error(`Duplicate key: ${Ct(t)}`,this.state.pos),e.set(t,this.next());else this.state.error("Missing key/value separator",this.state.pos)}),"}").simplifiedValue()}readSet(){return this.seq(!0,new Q,((t,e)=>{e.has(t)&&this.state.error(`Duplicate value in set: ${Ct(t)}`,this.state.pos),e.add(t)}),"}")}}function xt(t){return-1!==" \t\n\r".indexOf(t)}function St(t){return"object"==typeof t&&null!==t&&"__preserve_text_on__"in t&&"function"==typeof t.__preserve_text_on__}const Et={encode(t,e){new B(t,this).push(e.generic)},toValue:t=>t.generic},kt={encode(t,e){throw new Error("Embeddeds not permitted encoding Preserves document")},toValue(t){throw new Error("Embeddeds not permitted writing Preserves document")}};class At{constructor(t){var e;this.pieces=[],this.indentCount=0,this.options=t,this.indentDelta=" ".repeat(null!==(e=t.indent)&&void 0!==e?e:0)}get isIndenting(){return this.indentDelta.length>0}get includeAnnotations(){var t;return null===(t=this.options.includeAnnotations)||void 0===t||t}writeIndent(){if(this.isIndenting){this.pieces.push("\n");for(let t=0;t<this.indentCount;t++)this.pieces.push(this.indentDelta)}}writeIndentSpace(){this.isIndenting?this.writeIndent():this.pieces.push(" ")}escapeStringlikeChar(t,e=(t=>t)){switch(t){case"\\":return"\\\\";case"\b":return"\\b";case"\f":return"\\f";case"\n":return"\\n";case"\r":return"\\r";case"\t":return"\\t";default:return e(t)}}escapeStringlike(t,e){let n=e;for(let r of t)n+=r===e?"\\"+e:this.escapeStringlikeChar(r);return n+e}writeSeq(t,e,n,r){let i=n[Symbol.iterator]();this.pieces.push(t);const s=i.next();if(!0!==s.done){const t=s.value,e=i.next();if(!0===e.done)r(t);else{let n;for(this.indentCount++,this.writeIndent(),r(t),this.writeIndentSpace(),r(e.value);!0!==(n=i.next()).done;)this.writeIndentSpace(),r(n.value);this.indentCount--,this.writeIndent()}}this.pieces.push(e)}writeBytes(t){var e,n;const r=null!==(e=this.options.maxBinaryAsciiLength)&&void 0!==e?e:1024,i=null!==(n=this.options.maxBinaryAsciiProportion)&&void 0!==n?n:.75;if(t.length>=r)this.writeBase64(t);else{let e=0,n=Math.min(t.length,r);for(let r=0;r<n;r++){const n=t[r];switch(n){case 9:case 10:case 13:e++;break;default:n>=32&&n<=126&&e++}}0===n||e/n>=i?this.writeBinaryStringlike(t):this.writeBase64(t)}}writeBase64(t){this.pieces.push("#[",o(t),"]")}writeBinaryStringlike(t){let e='#"';for(let n of t)e+=34===n?'\\"':this.escapeStringlikeChar(String.fromCharCode(n),(t=>n>=32&&n<=126&&92!==n?t:"\\x"+("0"+n.toString(16)).slice(-2)));this.pieces.push(e+'"')}couldBeFlat(t){let e=!1;for(let n of t){if(Array.isArray(n)||Set.isSet(n)||Map.isMap(n)){if(e)return!1;e=!0}if(this.includeAnnotations&&rt(n)&&n.annotations.length>1)return!1}return!0}}class Dt{constructor(t={},e){var n;t instanceof At?(this.state=t,this.embeddedWrite=e):(this.state=new At(t),this.embeddedWrite=null!==(n=t.embeddedWrite)&&void 0!==n?n:kt)}static stringify(t,e){const n=new Dt(e);return n.push(t),n.contents()}contents(){return this.state.pieces.join("")}get includeAnnotations(){return this.state.includeAnnotations}push(t){switch(typeof t){case"boolean":this.state.pieces.push(t?"#t":"#f");break;case"string":this.state.pieces.push(this.state.escapeStringlike(t,'"'));break;case"symbol":{const e=t.description;/^[-a-zA-Z0-9~!$%^&*?_=+/.]+$/.exec(e)&&!gt.exec(e)?this.state.pieces.push(e):this.state.pieces.push(this.state.escapeStringlike(e,"|"));break}case"bigint":case"number":this.state.pieces.push(""+t);break;case"object":if(null===t)throw new Error("Cannot encode null in Preserves Writer.push");if(St(t))t.__preserve_text_on__(this);else if(St(t))t.__preserve_text_on__(this);else if(ArrayBuffer.isView(t))if(t instanceof Uint8Array)this.state.writeBytes(t);else{const e=new Uint8Array(t.buffer,t.byteOffset,t.byteLength);this.state.writeBytes(e)}else if(v.isRecord(t)){const e=this.state.couldBeFlat(t);this.state.pieces.push("<"),this.push(t.label),e||this.state.indentCount++;for(let n of t)e?this.state.pieces.push(" "):this.state.writeIndentSpace(),this.push(n);e||this.state.indentCount--,this.state.pieces.push(">")}else!function(t){return"object"==typeof t&&null!==t&&"function"==typeof t[Symbol.iterator]}(t)?x(t)?(this.state.pieces.push("#:"),"write"in this.embeddedWrite?this.embeddedWrite.write(this.state,t):new Dt(this.state,Et).push(this.embeddedWrite.toValue(t))):X(new K(t),this,((t,e)=>e.push(t)),((t,e)=>e.push(t))):this.state.writeSeq("[","]",t,(t=>this.push(t)));break;default:(e=>{throw new Error(`Internal error: unhandled in Preserves Writer.push for ${t}`)})()}return this}}function jt(t){switch(typeof t){case"number":if(!Number.isInteger(t))throw new TypeError("Refusing to autoconvert non-integer number to Double");case"bigint":case"string":case"symbol":case"boolean":return t;case"undefined":case"function":break;case"object":if(null===t)break;if("function"==typeof t.__as_preserve__)return t.__as_preserve__();if(v.isRecord(t))return t;if(Array.isArray(t))return t.map(jt);if(ArrayBuffer.isView(t)||t instanceof ArrayBuffer)return h.from(t);if(Map.isMap(t)){const e=new $;return t.forEach(((t,n)=>e.set(jt(n),jt(t)))),e}if(Q.isSet(t)){const e=new Q;return t.forEach((t=>e.add(jt(t)))),e}if(x(t))return t;{const e={};return Object.entries(t).forEach((([t,n])=>e[t]=jt(n))),e}}throw new TypeError("Cannot represent JavaScript value as Preserves: "+t)}t.Dictionary.stringMap=function(t){const e=new $;return Object.entries(t).forEach((([t,n])=>e.set(t,jt(n)))),e};const It={write(t,e){if(e instanceof S)new Dt(t,this).push(e.generic);else{try{const n=jt(e);if(!x(n))return void new Dt(t,this).push(n)}catch(t){}try{return void t.pieces.push(JSON.stringify(e))}catch(t){}t.pieces.push("⌜"+e+"⌝")}}};function Ct(t,e){var n;return(e=Object.assign({},null!=e?e:{})).embeddedWrite=null!==(n=e.embeddedWrite)&&void 0!==n?n:It,Dt.stringify(jt(t),e)}[at,h,$,Z].forEach((t=>{t.prototype.toString=function(){return Ct(this)}}));class Bt{constructor(t,e){this.index=0,this.packet=f(t),this.options=e}get includeAnnotations(){var t;return null!==(t=this.options.includeAnnotations)&&void 0!==t&&t}write(t){this.index===this.packet.length?this.packet=f(t):this.packet=h.concat([this.packet.slice(this.index),t])._view,this.index=0}atEnd(){return this.index>=this.packet.length}mark(){return this.index}restoreMark(t){this.index=t}shortGuard(t,e){if(this.atEnd())return e();const n=this.mark();try{return t()}catch(t){if(w.isShortPacket(t))return this.restoreMark(n),e();throw t}}nextbyte(){if(this.atEnd())throw new w("Short packet");return this.packet[this.index++]}nextbytes(t){const e=this.index;if(this.index+=t,this.index>this.packet.length)throw new w("Short packet");return new DataView(this.packet.buffer,this.packet.byteOffset+e,t)}varint(){const t=this.nextbyte();return t<128?t:(this.varint()<<7)+(t-128)}peekend(){return this.nextbyte()===e.End||(this.index--,!1)}nextint(t){const e=this.index;if(0===t)return 0;if(t>7)return this.nextbigint(t);if(7===t){const e=this.packet[this.index];if(e>=32&&e<224)return this.nextbigint(t)}let n=this.nextbyte();128&n&&(n-=256);for(let e=1;e<t;e++)n=256*n+this.nextbyte();return Number.isSafeInteger(n)?n:(this.index=e,this.nextbigint(t))}nextbigint(t){if(0===t)return BigInt(0);const e=h.from(this.nextbytes(t));if(e.get(0)>=128){const t=e.toHex((t=>d(15-t)));return~BigInt("0x"+t)}{const t=e.toHex();return BigInt("0x"+t)}}wrap(t){return this.includeAnnotations?new at(t):t}unshiftAnnotation(t,e){return this.includeAnnotations&&e.annotations.unshift(t),e}}const Ot={decode(t){throw new Error("Embeddeds not permitted at this point in Preserves document")},fromValue(t,e){throw new Error("Embeddeds not permitted at this point in Preserves document")}};class Vt{constructor(t=new Uint8Array(0),e){var n,r,i;if(t instanceof Bt)this.state=t,this.embeddedDecode=null!==(n=e)&&void 0!==n?n:Ot;else{const n=null!==(r=e)&&void 0!==r?r:{};this.state=new Bt(t,n),this.embeddedDecode=null!==(i=n.embeddedDecode)&&void 0!==i?i:Ot}}write(t){this.state.write(t)}nextvalues(){const t=[];for(;!this.state.peekend();)t.push(this.next());return t}static dictionaryFromArray(t){const e=new K;if(t.length%2)throw new b("Missing dictionary value");for(let n=0;n<t.length;n+=2){if(e.has(t[n]))throw new b(`Duplicate key: ${Ct(t[n])}`);e.set(t[n],t[n+1])}return e.simplifiedValue()}next(){const t=this.state.nextbyte();switch(t){case e.False:return this.state.wrap(!1);case e.True:return this.state.wrap(!0);case e.End:throw new b("Unexpected Compound end marker");case e.Annotation:{const t=this.next(),e=this.next();return this.state.unshiftAnnotation(t,e)}case e.Embedded:return this.state.wrap(this.embeddedDecode.decode(this.state));case e.Ieee754:if(8===this.state.varint())return this.state.wrap(pt.fromBytes(this.state.nextbytes(8)));throw new b("Invalid IEEE754 size");case e.SignedInteger:return this.state.wrap(this.state.nextint(this.state.varint()));case e.String:return this.state.wrap(h.from(this.state.nextbytes(this.state.varint())).fromUtf8());case e.ByteString:return this.state.wrap(h.from(this.state.nextbytes(this.state.varint())));case e.Symbol:return this.state.wrap(Symbol.for(h.from(this.state.nextbytes(this.state.varint())).fromUtf8()));case e.Record:{const t=this.nextvalues();if(0===t.length)throw new b("Too few elements in encoded record");return this.state.wrap(v(t[0],t.slice(1)))}case e.Sequence:return this.state.wrap(this.nextvalues());case e.Set:{const t=new Q;for(const e of this.nextvalues()){if(t.has(e))throw new b(`Duplicate value: ${Ct(e)}`);t.add(e)}return this.state.wrap(t)}case e.Dictionary:return this.state.wrap(Vt.dictionaryFromArray(this.nextvalues()));default:throw new b("Unsupported Preserves tag: "+t)}}try_next(){return this.state.shortGuard((()=>this.next()),(()=>{}))}atEnd(){return this.state.atEnd()}mark(){return this.state.mark()}restoreMark(t){return this.state.restoreMark(t)}skip(){this.next()}withEmbeddedDecode(t,e){return e(new Vt(this.state,t))}skipAnnotations(t){const n=this.mark();for(;!this.state.atEnd()&&this.state.packet[this.state.index]===e.Annotation;)this.state.index++,this.skip();return t((()=>this.restoreMark(n)))}nextBoolean(){return this.skipAnnotations((t=>{switch(this.state.nextbyte()){case e.False:return!1;case e.True:return!0;default:return t()}}))}nextDouble(){return this.skipAnnotations((t=>this.state.nextbyte()!==e.Ieee754||8!==this.state.nextbyte()?t():pt.fromBytes(this.state.nextbytes(8))))}nextEmbedded(){return this.skipAnnotations((t=>this.state.nextbyte()===e.Embedded?this.embeddedDecode.decode(this.state):t()))}nextSignedInteger(){return this.skipAnnotations((t=>this.state.nextbyte()===e.SignedInteger?this.state.nextint(this.state.varint()):t()))}nextString(){return this.skipAnnotations((t=>this.state.nextbyte()===e.String?h.from(this.state.nextbytes(this.state.varint())).fromUtf8():t()))}nextByteString(){return this.skipAnnotations((t=>this.state.nextbyte()===e.ByteString?h.from(this.state.nextbytes(this.state.varint())):t()))}nextSymbol(){return this.skipAnnotations((t=>this.state.nextbyte()===e.Symbol?Symbol.for(h.from(this.state.nextbytes(this.state.varint())).fromUtf8()):t()))}openRecord(){return this.skipAnnotations((t=>this.state.nextbyte()===e.Record||(t(),!1)))}openSequence(){return this.skipAnnotations((t=>this.state.nextbyte()===e.Sequence||(t(),!1)))}openSet(){return this.skipAnnotations((t=>this.state.nextbyte()===e.Set||(t(),!1)))}openDictionary(){return this.skipAnnotations((t=>this.state.nextbyte()===e.Dictionary||(t(),!1)))}closeCompound(){return this.state.peekend()}}function Mt(t,e={}){return new Vt(t,e).next()}const Tt=Object.assign({},vt,Et),Ft=Object.assign({},Ot,kt),qt={decode(t){throw new Error("Cannot decode identityEmbeddedType")},fromValue(t,e){throw new Error("Cannot decode identityEmbeddedType")}},Pt=Object.assign({},qt,I);var Nt;t.ValueClass=void 0,(Nt=t.ValueClass||(t.ValueClass={}))[Nt.Boolean=0]="Boolean",Nt[Nt.Double=1]="Double",Nt[Nt.SignedInteger=2]="SignedInteger",Nt[Nt.String=3]="String",Nt[Nt.ByteString=4]="ByteString",Nt[Nt.Symbol=5]="Symbol",Nt[Nt.Record=6]="Record",Nt[Nt.Sequence=7]="Sequence",Nt[Nt.Set=8]="Set",Nt[Nt.Dictionary=9]="Dictionary",Nt[Nt.Embedded=10]="Embedded",Nt[Nt.Annotated=11]="Annotated";class Ut{boolean(t){}double(t){}integer(t){}string(t){}bytes(t){}symbol(t){}record(t,e){e(t.label),t.forEach(e)}array(t,e){t.forEach(e)}set(t,e){t.forEach(e)}dictionary(t,e){t.forEach(((t,n)=>{e(n),e(t)}))}annotated(t,e){e(t.item),t.annotations.forEach(e)}embedded(t,e){}}class Rt extends Ut{constructor(t){super(),this.f=t}embedded(t,e){this.f(t,e)}}class zt{boolean(t){return t}double(t){return yt(t)}integer(t){return t}string(t){return t}bytes(t){return t}symbol(t){return t}record(t,e){return v(e(t.label),t.map(e))}array(t,e){return t.map(e)}set(t,e){return t.map(e)}dictionary(t,e){const n=new K;return t.forEach(((t,r)=>n.set(e(r),e(t)))),n.simplifiedValue()}annotated(t,e){return ct(e(t.item),...t.annotations.map(e))}}class Jt extends zt{embedded(t,e){return t}}class Wt extends zt{constructor(t){super(),this.f=t}embedded(t,e){return this.f(t)}}const Ht=new Jt;function Lt(e,n){const r=e=>{switch(typeof e){case"boolean":return n.boolean(e);case"number":return Number.isInteger(e)?n.integer(e):n.double(e);case"bigint":return n.integer(e);case"string":return n.string(e);case"symbol":return n.symbol(e);case"object":if(v.isRecord(e))return n.record(e,r);if(Array.isArray(e))return n.array(e,r);if(Q.isSet(e))return n.set(e,r);if(x(e))return n.embedded(e,r);if(at.isAnnotated(e))return n.annotated(e,r);if(h.isBytes(e))return n.bytes(e);if(lt.isDouble(e))return n.double(e.value);if(t.Dictionary.isDictionary(e))return n.dictionary(new K(e),r);default:(t=>{throw new Error("Internal error")})()}};return r(e)}function $t(e){switch(rt(e)&&(e=e.item),typeof e){case"boolean":return 0;case"number":case"bigint":return 3;case"string":return 4;case"symbol":return 6;case"object":if(lt.isFloat(e))return 2;if(h.isBytes(e))return 5;if(Array.isArray(e))return"label"in e?7:8;if(Q.isSet(e))return 9;if(t.Dictionary.isDictionary(e))return 10;if(x(e))return 11;default:throw new Error("Invalid Value<T> in typeCode")}}Array.__from_preserve__=t=>Array.isArray(t)?t:void 0;const Kt=Array,Gt=Symbol;t.Annotated=at,t.Array=Kt,t.Bytes=h,t.Constants=n,t.DecodeError=b,t.Decoder=Vt,t.DecoderState=Bt,t.DictionaryMap=K,t.DictionaryType=H,t.Double=yt,t.DoubleFloat=pt,t.Embedded=class{get[_](){return!0}constructor(t){this.value=t}equals(t){return"object"==typeof t&&"value"in t&&Object.is(this.value,t.value)}},t.EncodableDictionary=L,t.EncodableSet=Y,t.EncodeError=g,t.Encoder=B,t.EncoderState=C,t.ErrorType=y,t.FlexMap=R,t.FlexSet=z,t.Float=lt,t.FloatType=dt,t.ForEachEmbedded=Rt,t.GenericEmbedded=S,t.IDENTITY_FOLD=Ht,t.IdentityFold=Jt,t.IdentityMap=F,t.IdentitySet=q,t.IsEmbedded=_,t.IsMap=P,t.IsPreservesAnnotated=nt,t.IsPreservesBytes=u,t.IsSet=N,t.KeyedDictionary=$,t.KeyedSet=Z,t.MapFold=Wt,t.NUMBER_RE=gt,t.PreservesCodecError=m,t.Reader=_t,t.ReaderState=wt,t.Record=v,t.Set=Q,t.ShortPacket=w,t.Symbol=Gt,t.ValueFold=zt,t.VoidFold=Ut,t.Writer=Dt,t.WriterState=At,t._iterMap=U,t.annotate=ct,t.annotations=ut,t.asLiteral=function(t,e){return it(t,e)?e:void 0},t.canonicalEncode=function(t,e){if(void 0!==e||M)return O(t,Object.assign(Object.assign({},e),{canonical:!0}));{M=!0;const e=V.push(t).contents();return M=!1,e}},t.canonicalString=T,t.compare=function(e,n,r=((t,e)=>it(t,e)?0:t<e?-1:1)){return function e(n,i){rt(n)&&(n=n.item),rt(i)&&(i=i.item);const s=$t(n),o=$t(i);if(s<o)return-1;if(s>o)return 1;switch(s){case 0:case 3:case 4:return n<i?-1:n>i?1:0;case 2:{const t=n.value,e=i.value;return t<e?-1:t>e?1:0}case 5:return h.compare(n,i);case 6:{const t=n.description,e=i.description;return t<e?-1:t>e?1:0}case 7:{const t=e(n.label,i.label);if(0!==t)return t}case 8:{const t=n,r=i,s=Math.min(t.length,r.length);for(let n=0;n<s;n++){const i=e(t[n],r[n]);if(0!==i)return i}return t.length<r.length?-1:t.length>r.length?1:0}case 9:return e(Array.from(n).sort(e),Array.from(i).sort(e));case 10:return e(Array.from(t.Dictionary.asMap(n).entries()).sort(e),Array.from(t.Dictionary.asMap(i).entries()).sort(e));case 11:return r(n,i);default:throw new Error("Invalid typeCode: "+s)}}(e,n)},t.dataview=p,t.decode=Mt,t.decodeBase64=i,t.decodeWithAnnotations=function(t,e={}){return Mt(t,Object.assign(Object.assign({},e),{includeAnnotations:!0}))},t.embeddedId=j,t.encode=O,t.encodeBase64=o,t.encodeDictionaryOn=G,t.encodeSetOn=tt,t.encodeWithAnnotations=function(t,e={}){return O(t,Object.assign(Object.assign({},e),{includeAnnotations:!0}))},t.floatValue=function(t){return"number"==typeof t?t:lt.isFloat(t)?t.value:NaN},t.floatlikeString=ft,t.fold=Lt,t.forEachEmbedded=function(t,e){return Lt(t,new Rt(e))},t.formatPosition=function(t){var e,n,r;return null===t?"<unknown>":"string"==typeof t?t:`${null!==(e=t.name)&&void 0!==e?e:""}:${null!==(n=t.line)&&void 0!==n?n:""}:${null!==(r=t.column)&&void 0!==r?r:""}:${t.pos}`},t.fromJS=jt,t.genericEmbeddedType=Tt,t.genericEmbeddedTypeDecode=vt,t.genericEmbeddedTypeEncode=Et,t.hexDigit=d,t.identityEmbeddedType=Pt,t.identityEmbeddedTypeDecode=qt,t.identityEmbeddedTypeEncode=I,t.is=it,t.isAnnotated=rt,t.isCompound=ht,t.isEmbedded=x,t.isPreservable=E,t.isPreserveWritable=St,t.isSequence=function(t){return Array.isArray(t)&&!("label"in t)},t.mapEmbeddeds=function(t,e){return Lt(t,new Wt(e))},t.merge=function(e,n,...r){function i(){throw new Error("Cannot merge items")}function s(n,r){return n===r?n:ht(n)||ht(r)||!it(n,r)?Lt(n,{boolean:i,double:t=>it(n,r)?n:i(),integer:i,string:i,bytes:t=>it(n,r)?n:i(),symbol:i,record:t=>(v.isRecord(r)||i(),v(s(t.label,r.label),o(t,r))),array:t=>(Array.isArray(r)&&!v.isRecord(r)||i(),o(t,r)),set(t){i()},dictionary(e){const n=t.Dictionary.asMap(r);void 0===n&&i();const o=new K;return e.forEach(((t,e)=>{const r=n.get(e);o.set(e,void 0===r?t:s(t,r))})),n.forEach(((t,n)=>{e.has(n)||o.set(n,t)})),o.simplifiedValue()},annotated:t=>s(t,J(r)),embedded(t){x(r)||i();const n=e(t,r);return void 0===n&&i(),n}}):n}function o(t,e){return t.length<=e.length?e.map(((e,n)=>n<t.length?s(t[n],e):e)):t.map(((t,n)=>n<e.length?s(t,e[n]):t))}return r.reduce(s,n)},t.neverEmbeddedType=Ft,t.neverEmbeddedTypeDecode=Ot,t.neverEmbeddedTypeEncode=kt,t.newPosition=st,t.parse=function(t,e){return new _t(t,e).next()},t.parseAll=function(t,e){return new _t(t,e).readToEnd()},t.peel=function(t){return W(t,1)},t.position=function(t){return at.isAnnotated(t)?t.pos:null},t.preserves=function(t,...e){const n=[t[0]];return e.forEach(((e,r)=>{n.push(Ct(e)),n.push(t[r+1])})),n.join("")},t.stringify=Ct,t.stringifyEmbeddedWrite=It,t.strip=W,t.typeCode=$t,t.unannotate=J,t.underlying=f,t.unhexDigit=l,t.updatePosition=ot,t.valueClass=function(e){switch(typeof e){case"boolean":return t.ValueClass.Boolean;case"number":if(Number.isInteger(e))return t.ValueClass.SignedInteger;throw new Error("Non-integer number in Preserves valueClass; missing Float wrapper?");case"bigint":return t.ValueClass.SignedInteger;case"string":return t.ValueClass.String;case"symbol":return t.ValueClass.Symbol;case"object":return v.isRecord(e)?t.ValueClass.Record:Array.isArray(e)?t.ValueClass.Sequence:Q.isSet(e)?t.ValueClass.Set:t.Dictionary.isDictionary(e)?t.ValueClass.Dictionary:at.isAnnotated(e)?t.ValueClass.Annotated:h.isBytes(e)?t.ValueClass.ByteString:lt.isDouble(e)?t.ValueClass.Double:t.ValueClass.Embedded;default:(t=>{throw new Error("Internal error")})()}},t.writeDictionaryOn=X,t.writeSetOn=et}));

lib/decoder.js

 import { Annotated } from "./annotated";
 import { DecodeError, ShortPacket } from "./codec";
 import { Tag } from "./constants";
-import { Set, Dictionary } from "./dictionary";
+import { Set, DictionaryMap } from "./dictionary";
 import { DoubleFloat } from "./float";
@@ -9,2 +9,3 @@ import { Record } from "./record";
 import { is } from "./is";
+import { stringify } from "./text";
 export function asLiteral(actual, expected) {
@@ -162,9 +163,11 @@ return is(actual, expected) ? expected : void 0;
     static dictionaryFromArray(vs) {
-        const d = new Dictionary();
+        const d = new DictionaryMap();
         if (vs.length % 2)
             throw new DecodeError("Missing dictionary value");
         for (let i = 0; i < vs.length; i += 2) {
+            if (d.has(vs[i]))
+                throw new DecodeError(`Duplicate key: ${stringify(vs[i])}`);
             d.set(vs[i], vs[i + 1]);
         }
-        return d;
+        return d.simplifiedValue();
     }
@@ -199,3 +202,11 @@ next() {
             case Tag.Sequence: return this.state.wrap(this.nextvalues());
-            case Tag.Set: return this.state.wrap(new Set(this.nextvalues()));
+            case Tag.Set: {
+                const s = new Set();
+                for (const v of this.nextvalues()) {
+                    if (s.has(v))
+                        throw new DecodeError(`Duplicate value: ${stringify(v)}`);
+                    s.add(v);
+                }
+                return this.state.wrap(s);
+            }
             case Tag.Dictionary: return this.state.wrap(Decoder.dictionaryFromArray(this.nextvalues()));
@@ -202,0 +213,0 @@ default: throw new DecodeError("Unsupported Preserves tag: " + tag);

lib/dictionary.d.ts

 import { Encoder } from "./encoder";
-import { FlexMap, FlexSet, IdentitySet } from "./flex";
+import { FlexMap, FlexSet, IdentitySet, Equivalence, IsMap } from "./flex";
 import { Value } from "./values";
-import type { Embeddable, GenericEmbedded } from "./embedded";
+import { Embeddable, GenericEmbedded } from "./embedded";
 import type { Preservable } from "./encoder";
 import type { Writer, PreserveWritable } from "./writer";
+import { JsDictionary } from "./jsdictionary";
 export type DictionaryType = 'Dictionary' | 'Set';
 export declare const DictionaryType: unique symbol;
 export type CompoundKey<T extends Embeddable> = Value<T> | (Preservable<T> & PreserveWritable<T>);
-export declare class EncodableDictionary<K, V, T extends Embeddable = GenericEmbedded> extends FlexMap<K, V> implements Preservable<T>, PreserveWritable<T> {
+export declare class EncodableDictionary<T extends Embeddable, K, V> extends FlexMap<K, V> implements Preservable<T>, PreserveWritable<T> {
     readonly encodeK: (k: K) => CompoundKey<T>;
@@ -17,17 +18,46 @@ readonly encodeV: (v: V) => CompoundKey<T>;
 }
-export declare class KeyedDictionary<K extends CompoundKey<T>, V, T extends Embeddable = GenericEmbedded> extends EncodableDictionary<K, V, T> {
+export declare class KeyedDictionary<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>, V = Value<T>> extends EncodableDictionary<T, K, V> {
     get [DictionaryType](): DictionaryType;
-    static isKeyedDictionary<K extends CompoundKey<T>, V, T extends Embeddable = GenericEmbedded>(x: any): x is KeyedDictionary<K, V, T>;
+    static isKeyedDictionary<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>, V = Value<T>>(x: any): x is KeyedDictionary<T, K, V>;
     constructor(items?: readonly [K, V][] | Iterable<readonly [K, V]>);
-    mapEntries<W, S extends Value<R>, R extends Embeddable = GenericEmbedded>(f: (entry: [K, V]) => [S, W]): KeyedDictionary<S, W, R>;
-    clone(): KeyedDictionary<K, V, T>;
+    clone(): KeyedDictionary<T, K, V>;
     get [Symbol.toStringTag](): string;
+    equals(otherAny: any, eqv?: Equivalence<V>): boolean;
 }
-export declare class Dictionary<T extends Embeddable = GenericEmbedded, V = Value<T>> extends KeyedDictionary<Value<T>, V, T> {
-    static isDictionary<T extends Embeddable = GenericEmbedded, V = Value<T>>(x: any): x is Dictionary<T, V>;
-    static __from_preserve__<T extends Embeddable>(v: Value<T>): undefined | Dictionary<T>;
+export type Dictionary<T extends Embeddable = GenericEmbedded, V = Value<T>> = JsDictionary<V> | KeyedDictionary<T, Value<T>, V>;
+export declare class DictionaryMap<T extends Embeddable = GenericEmbedded, V = Value<T>> implements Map<Value<T>, V> {
+    get [IsMap](): boolean;
+    j: JsDictionary<V> | undefined;
+    k: KeyedDictionary<T, Value<T>, V> | undefined;
+    constructor(input?: Dictionary<T, V>);
+    static from<T extends Embeddable = GenericEmbedded, V = Value<T>>(entries: Iterable<[Value<T>, V]>): DictionaryMap<T, V>;
+    clear(): void;
+    delete(key: Value<T>): boolean;
+    forEach(callbackfn: (value: V, key: Value<T>, map: Map<Value<T>, V>) => void, thisArg?: any): void;
+    get(key: Value<T>): V | undefined;
+    has(key: Value<T>): boolean;
+    set(key: Value<T>, value: V): this;
+    get size(): number;
+    entries(): IterableIterator<[Value<T>, V]>;
+    keys(): IterableIterator<Value<T>>;
+    values(): IterableIterator<V>;
+    [Symbol.iterator](): IterableIterator<[Value<T>, V]>;
+    get [Symbol.toStringTag](): string;
+    clone(): DictionaryMap<T, V>;
+    get value(): Dictionary<T, V>;
+    simplify(): void;
+    simplifiedValue(): Dictionary<T, V>;
+    asJsDictionary(): JsDictionary<V>;
+    asKeyedDictionary(): KeyedDictionary<T, Value<T>, V>;
 }
-export declare function encodeDictionaryOn<K, V, T extends Embeddable>(dict: Map<K, V>, encoder: Encoder<T>, encodeK: (k: K, encoder: Encoder<T>) => void, encodeV: (v: V, encoder: Encoder<T>) => void): void;
-export declare function writeDictionaryOn<K, V, T extends Embeddable>(dict: Map<K, V>, w: Writer<T>, writeK: (k: K, w: Writer<T>) => void, writeV: (v: V, w: Writer<T>) => void): void;
-export declare class EncodableSet<V, T extends Embeddable = GenericEmbedded> extends FlexSet<V> implements Preservable<T>, PreserveWritable<T> {
+export declare namespace Dictionary {
+    function isDictionary<T extends Embeddable = GenericEmbedded, V = Value<T>>(x: any): x is Dictionary<T, V>;
+    function asMap<T extends Embeddable = GenericEmbedded, V = Value<T>>(x: Dictionary<T, V>): DictionaryMap<T, V>;
+    function asMap<T extends Embeddable = GenericEmbedded, V = Value<T>>(x: any): DictionaryMap<T, V> | undefined;
+    function from<T extends Embeddable = GenericEmbedded, V = Value<T>>(entries: Iterable<[Value<T>, V]>): Dictionary<T, V>;
+    function __from_preserve__<T extends Embeddable>(v: Value<T>): undefined | Dictionary<T>;
+}
+export declare function encodeDictionaryOn<T extends Embeddable, K, V>(dict: Map<K, V>, encoder: Encoder<T>, encodeK: (k: K, encoder: Encoder<T>) => void, encodeV: (v: V, encoder: Encoder<T>) => void): void;
+export declare function writeDictionaryOn<T extends Embeddable, K, V>(dict: Map<K, V>, w: Writer<T>, writeK: (k: K, w: Writer<T>) => void, writeV: (v: V, w: Writer<T>) => void): void;
+export declare class EncodableSet<T extends Embeddable, V> extends FlexSet<V> implements Preservable<T>, PreserveWritable<T> {
     readonly encodeV: (v: V) => CompoundKey<T>;
@@ -38,16 +68,16 @@ constructor(encodeV: (v: V) => CompoundKey<T>, items?: Iterable<V>);
 }
-export declare class KeyedSet<K extends CompoundKey<T>, T extends Embeddable = GenericEmbedded> extends EncodableSet<K, T> {
+export declare class KeyedSet<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>> extends EncodableSet<T, K> {
     get [DictionaryType](): DictionaryType;
-    static isKeyedSet<K extends CompoundKey<T>, T extends Embeddable = GenericEmbedded>(x: any): x is KeyedSet<K, T>;
+    static isKeyedSet<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>>(x: any): x is KeyedSet<T, K>;
     constructor(items?: Iterable<K>);
-    map<S extends Value<R>, R extends Embeddable = GenericEmbedded>(f: (value: K) => S): KeyedSet<S, R>;
-    filter(f: (value: K) => boolean): KeyedSet<K, T>;
-    clone(): KeyedSet<K, T>;
+    map<R extends Embeddable = GenericEmbedded, S extends Value<R> = Value<R>>(f: (value: K) => S): KeyedSet<R, S>;
+    filter(f: (value: K) => boolean): KeyedSet<T, K>;
+    clone(): KeyedSet<T, K>;
     get [Symbol.toStringTag](): string;
 }
-export declare class Set<T extends Embeddable = GenericEmbedded> extends KeyedSet<Value<T>, T> {
+export declare class Set<T extends Embeddable = GenericEmbedded> extends KeyedSet<T> {
     static isSet<T extends Embeddable = GenericEmbedded>(x: any): x is Set<T>;
     static __from_preserve__<T extends Embeddable>(v: Value<T>): undefined | Set<T>;
 }
-export declare function encodeSetOn<V, T extends Embeddable>(s: IdentitySet<V>, encoder: Encoder<T>, encodeV: (v: V, encoder: Encoder<T>) => void): void;
-export declare function writeSetOn<V, T extends Embeddable>(s: IdentitySet<V>, w: Writer<T>, writeV: (v: V, w: Writer<T>) => void): void;
+export declare function encodeSetOn<T extends Embeddable, V>(s: IdentitySet<V>, encoder: Encoder<T>, encodeV: (v: V, encoder: Encoder<T>) => void): void;
+export declare function writeSetOn<T extends Embeddable, V>(s: IdentitySet<V>, w: Writer<T>, writeV: (v: V, w: Writer<T>) => void): void;

lib/dictionary.js

 import { Encoder, canonicalString } from "./encoder";
 import { Tag } from "./constants";
-import { FlexMap, FlexSet, _iterMap } from "./flex";
+import { FlexMap, FlexSet, _iterMap, IsMap } from "./flex";
 import { Bytes } from './bytes';
 import { annotations, Annotated } from "./annotated";
+import { JsDictionary } from "./jsdictionary";
+import { unannotate } from "./strip";
 export const DictionaryType = Symbol.for('DictionaryType');
@@ -32,10 +34,2 @@ export class EncodableDictionary extends FlexMap {
     }
-    mapEntries(f) {
-        const result = new KeyedDictionary();
-        for (let oldEntry of this.entries()) {
-            const newEntry = f(oldEntry);
-            result.set(newEntry[0], newEntry[1]);
-        }
-        return result;
-    }
     clone() {
@@ -45,11 +39,169 @@ return new KeyedDictionary(this);
     get [Symbol.toStringTag]() { return 'Dictionary'; }
+    equals(otherAny, eqv = (v1, v2) => v1 === v2) {
+        const otherMap = Dictionary.asMap(otherAny);
+        if (!otherMap)
+            return false;
+        return super.equals(otherMap, eqv);
+    }
 }
-export class Dictionary extends KeyedDictionary {
-    static isDictionary(x) {
-        return (x === null || x === void 0 ? void 0 : x[DictionaryType]) === 'Dictionary';
+export class DictionaryMap {
+    get [IsMap]() { return true; }
+    constructor(input) {
+        if (input === void 0) {
+            this.j = {};
+            this.k = void 0;
+        }
+        else if (DictionaryType in input) {
+            this.j = void 0;
+            this.k = input;
+        }
+        else {
+            this.j = input;
+            this.k = void 0;
+        }
     }
-    static __from_preserve__(v) {
+    static from(entries) {
+        const r = new DictionaryMap();
+        for (const [key, value] of entries)
+            r.set(key, value);
+        return r;
+    }
+    clear() {
+        if (this.j) {
+            JsDictionary.clear(this.j);
+        }
+        else {
+            this.k.clear();
+        }
+    }
+    delete(key) {
+        if (this.j) {
+            key = unannotate(key);
+            if (typeof key !== 'symbol')
+                return false;
+            return JsDictionary.remove(this.j, key);
+        }
+        else {
+            return this.k.delete(key);
+        }
+    }
+    forEach(callbackfn, thisArg) {
+        if (this.j) {
+            JsDictionary.forEach(this.j, (v, k) => callbackfn.call(thisArg, v, k, this));
+        }
+        else {
+            this.k.forEach(callbackfn, thisArg);
+        }
+    }
+    get(key) {
+        if (this.j) {
+            key = unannotate(key);
+            if (typeof key !== 'symbol')
+                return void 0;
+            return JsDictionary.get(this.j, key);
+        }
+        else {
+            return this.k.get(key);
+        }
+    }
+    has(key) {
+        if (this.j) {
+            key = unannotate(key);
+            if (typeof key !== 'symbol')
+                return false;
+            return JsDictionary.has(this.j, key);
+        }
+        else {
+            return this.k.has(key);
+        }
+    }
+    set(key, value) {
+        if (this.j) {
+            if (typeof key === 'symbol') {
+                JsDictionary.set(this.j, key, value);
+                return this;
+            }
+            this.k = new KeyedDictionary(JsDictionary.entries(this.j));
+            this.j = void 0;
+        }
+        this.k.set(key, value);
+        return this;
+    }
+    get size() {
+        return this.j ? JsDictionary.size(this.j) : this.k.size;
+    }
+    entries() {
+        return this.j ? JsDictionary.entries(this.j) : this.k.entries();
+    }
+    keys() {
+        return this.j ? JsDictionary.keys(this.j) : this.k.keys();
+    }
+    values() {
+        return this.j ? JsDictionary.values(this.j) : this.k.values();
+    }
+    [Symbol.iterator]() {
+        return this.entries();
+    }
+    get [Symbol.toStringTag]() {
+        return 'DictionaryMap';
+    }
+    clone() {
+        return new DictionaryMap(this.j ? JsDictionary.clone(this.j) : this.k.clone());
+    }
+    get value() {
+        var _a;
+        return (_a = this.j) !== null && _a !== void 0 ? _a : this.k;
+    }
+    simplify() {
+        if (!this.j) {
+            const r = {};
+            for (const [key, value] of this.k.entries()) {
+                if (typeof key !== 'symbol')
+                    return;
+                r[key.description] = value;
+            }
+            this.j = r;
+            this.k = void 0;
+        }
+    }
+    simplifiedValue() {
+        this.simplify();
+        return this.value;
+    }
+    asJsDictionary() {
+        this.simplify();
+        if (!this.j)
+            throw new Error("Cannot represent general dictionary as JsDictionary");
+        return this.j;
+    }
+    asKeyedDictionary() {
+        var _a;
+        return (_a = this.k) !== null && _a !== void 0 ? _a : new KeyedDictionary(JsDictionary.entries(this.j));
+    }
+}
+export var Dictionary;
+(function (Dictionary) {
+    function isDictionary(x) {
+        if (typeof x !== 'object' || x === null)
+            return false;
+        switch (x[DictionaryType]) {
+            case 'Dictionary': return true;
+            case void 0: return JsDictionary.isJsDictionary(x);
+            default: return false;
+        }
+    }
+    Dictionary.isDictionary = isDictionary;
+    function asMap(x) {
+        return isDictionary(x) ? new DictionaryMap(x) : void 0;
+    }
+    Dictionary.asMap = asMap;
+    function from(entries) {
+        return DictionaryMap.from(entries).simplifiedValue();
+    }
+    Dictionary.from = from;
+    function __from_preserve__(v) {
         return Dictionary.isDictionary(v) ? v : void 0;
     }
-}
+    Dictionary.__from_preserve__ = __from_preserve__;
+})(Dictionary || (Dictionary = {}));
 export function encodeDictionaryOn(dict, encoder, encodeK, encodeV) {
@@ -56,0 +208,0 @@ if (encoder.canonical) {

lib/embedded.d.ts

@@ -5,3 +5,7 @@ import type { DecoderState } from "./decoder";
 import { ReaderStateOptions } from "./reader";
-export type Embeddable = object;
+export declare const IsEmbedded: unique symbol;
+export interface Embeddable {
+    readonly [IsEmbedded]: true;
+}
+export declare function isEmbedded<T extends Embeddable>(v: any): v is T;
 export type EmbeddedTypeEncode<T extends Embeddable> = {
@@ -15,9 +19,11 @@ encode(s: EncoderState, v: T): void;
 export type EmbeddedType<T extends Embeddable> = EmbeddedTypeEncode<T> & EmbeddedTypeDecode<T>;
-export declare function isEmbedded<T extends Embeddable>(v: Value<T>): v is T;
 export declare class Embedded<T> {
     readonly value: T;
+    get [IsEmbedded](): true;
     constructor(value: T);
+    equals(other: any): boolean;
 }
 export declare class GenericEmbedded {
-    generic: Value;
+    readonly generic: Value;
+    get [IsEmbedded](): true;
     constructor(generic: Value);
@@ -24,0 +30,0 @@ equals(other: any, is: (a: any, b: any) => boolean): boolean;

lib/embedded.js

@@ -1,22 +0,16 @@
-import { Annotated } from "./annotated";
-import { Bytes } from "./bytes";
-import { Float } from "./float";
-import { Set, Dictionary } from "./dictionary";
+export const IsEmbedded = Symbol.for('IsEmbedded');
 export function isEmbedded(v) {
-    return (typeof (v) === 'object')
-        && (v !== null)
-        && !Array.isArray(v)
-        && !Bytes.isBytes(v)
-        && !Float.isFloat(v)
-        && !Set.isSet(v)
-        && !Dictionary.isDictionary(v)
-        && !Annotated.isAnnotated(v)
-        && ((_v) => true)(v);
+    return !!(v === null || v === void 0 ? void 0 : v[IsEmbedded]);
 }
 export class Embedded {
+    get [IsEmbedded]() { return true; }
     constructor(value) {
         this.value = value;
     }
+    equals(other) {
+        return typeof other === 'object' && 'value' in other && Object.is(this.value, other.value);
+    }
 }
 export class GenericEmbedded {
+    get [IsEmbedded]() { return true; }
     constructor(generic) {
@@ -23,0 +17,0 @@ this.generic = generic;

lib/encoder.js

@@ -5,2 +5,4 @@ import { Tag } from "./constants";
 import { Record } from "./record";
+import { isEmbedded } from "./embedded";
+import { DictionaryMap, encodeDictionaryOn } from "./dictionary";
 export function isPreservable(v) {
@@ -240,7 +242,8 @@ return typeof v === 'object' && v !== null && '__preserve_on__' in v && typeof v.__preserve_on__ === 'function';
         }
+        else if (isEmbedded(v)) {
+            this.state.emitbyte(Tag.Embedded);
+            this.embeddedEncode.encode(this.state, v);
+        }
         else {
-            ((v) => {
-                this.state.emitbyte(Tag.Embedded);
-                this.embeddedEncode.encode(this.state, v);
-            })(v);
+            encodeDictionaryOn(new DictionaryMap(v), this, (k, e) => e.push(k), (v, e) => e.push(v));
         }
@@ -247,0 +250,0 @@ return this; // for chaining

lib/fold.d.ts

 import { Record, Tuple } from "./record";
 import { Bytes } from "./bytes";
 import { Value } from "./values";
-import { Set, Dictionary } from "./dictionary";
+import { Set, DictionaryMap } from "./dictionary";
 import { Annotated } from "./annotated";
@@ -32,3 +32,3 @@ import { Embeddable } from "./embedded";
     set(s: Set<T>, k: Fold<T, R>): R;
-    dictionary(d: Dictionary<T>, k: Fold<T, R>): R;
+    dictionary(d: DictionaryMap<T>, k: Fold<T, R>): R;
     annotated(a: Annotated<T>, k: Fold<T, R>): R;
@@ -47,3 +47,3 @@ embedded(t: T, k: Fold<T, R>): R;
     set(s: Set<T>, k: Fold<T, void>): void;
-    dictionary(d: Dictionary<T>, k: Fold<T, void>): void;
+    dictionary(d: DictionaryMap<T>, k: Fold<T, void>): void;
     annotated(a: Annotated<T>, k: Fold<T, void>): void;
@@ -67,3 +67,3 @@ embedded(_t: T, _k: Fold<T, void>): void;
     set(s: Set<T>, k: Fold<T, Value<R>>): Value<R>;
-    dictionary(d: Dictionary<T>, k: Fold<T, Value<R>>): Value<R>;
+    dictionary(d: DictionaryMap<T>, k: Fold<T, Value<R>>): Value<R>;
     annotated(a: Annotated<T>, k: Fold<T, Value<R>>): Value<R>;
@@ -70,0 +70,0 @@ abstract embedded(t: T, k: Fold<T, Value<R>>): Value<R>;

lib/fold.js

 import { Record } from "./record";
 import { Bytes } from "./bytes";
-import { Set, Dictionary } from "./dictionary";
+import { Set, Dictionary, DictionaryMap } from "./dictionary";
 import { annotate, Annotated } from "./annotated";
 import { Double, Float } from "./float";
+import { isEmbedded } from "./embedded";
 export var ValueClass;
@@ -76,3 +77,5 @@ (function (ValueClass) {
     dictionary(d, k) {
-        return d.mapEntries(([key, value]) => [k(key), k(value)]);
+        const result = new DictionaryMap();
+        d.forEach((value, key) => result.set(k(key), k(value)));
+        return result.simplifiedValue();
     }
@@ -173,4 +176,4 @@ annotated(a, k) {
                 }
-                else if (Dictionary.isDictionary(v)) {
-                    return o.dictionary(v, walk);
+                else if (isEmbedded(v)) {
+                    return o.embedded(v, walk);
                 }
@@ -186,4 +189,4 @@ else if (Annotated.isAnnotated(v)) {
                 }
-                else {
-                    return ((_v) => o.embedded(v, walk))(v);
+                else if (Dictionary.isDictionary(v)) {
+                    return o.dictionary(new DictionaryMap(v), walk);
                 }
@@ -190,0 +193,0 @@ default:

lib/fromjs.d.ts

@@ -6,4 +6,4 @@ import { Embeddable, GenericEmbedded } from "./embedded";
     namespace Dictionary {
-        function fromJS<T extends Embeddable = GenericEmbedded, V extends Embeddable = GenericEmbedded>(x: object): Dictionary<T, Value<V>>;
+        function stringMap<T extends Embeddable = GenericEmbedded>(x: object): KeyedDictionary<T, string, Value<T>>;
     }
 }

lib/fromjs.js

@@ -0,4 +1,5 @@
+import { isEmbedded } from "./embedded";
 import { Bytes } from "./bytes";
 import { Record } from "./record";
-import { Dictionary, Set } from "./dictionary";
+import { Dictionary, KeyedDictionary, Set } from "./dictionary";
 export function fromJS(x) {
@@ -37,3 +38,3 @@ switch (typeof x) {
             if (Map.isMap(x)) {
-                const d = new Dictionary();
+                const d = new KeyedDictionary();
                 x.forEach((v, k) => d.set(fromJS(k), fromJS(v)));
@@ -47,4 +48,11 @@ return d;
             }
-            // Just... assume it's a T.
-            return x;
+            if (isEmbedded(x)) {
+                return x;
+            }
+            // Handle plain JS objects to build a JsDictionary
+            {
+                const r = {};
+                Object.entries(x).forEach(([k, v]) => r[k] = fromJS(v));
+                return r;
+            }
         default:
@@ -55,9 +63,7 @@ break;
 }
-Dictionary.fromJS = function (x) {
-    if (Dictionary.isDictionary(x))
-        return x;
-    const d = new Dictionary();
-    Object.entries(x).forEach(([key, value]) => d.set(key, fromJS(value)));
-    return d;
+Dictionary.stringMap = function (x) {
+    const r = new KeyedDictionary();
+    Object.entries(x).forEach(([key, value]) => r.set(key, fromJS(value)));
+    return r;
 };
 //# sourceMappingURL=fromjs.js.map

lib/is.js

@@ -0,1 +1,2 @@
+import { Dictionary } from "./dictionary";
 export const IsPreservesAnnotated = Symbol.for('IsPreservesAnnotated');
@@ -37,2 +38,17 @@ export function isAnnotated(x) {
         }
+        {
+            const aMap = Dictionary.asMap(a);
+            const bMap = Dictionary.asMap(b);
+            if (!aMap || !bMap)
+                return false;
+            if (aMap.size !== bMap.size)
+                return false;
+            for (const k of aMap.keys()) {
+                if (!bMap.has(k))
+                    return false;
+                if (!is(aMap.get(k), bMap.get(k)))
+                    return false;
+            }
+            return true;
+        }
     }
@@ -39,0 +55,0 @@ return false;

lib/merge.js

 import { Record } from "./record";
 import { fold } from "./fold";
 import { is } from "./is";
-import { Dictionary } from "./dictionary";
+import { Dictionary, DictionaryMap } from "./dictionary";
 import { unannotate } from "./strip";
@@ -42,15 +42,16 @@ import { isEmbedded } from "./embedded";
             set(_s) { die(); },
-            dictionary(d) {
-                if (!Dictionary.isDictionary(b))
+            dictionary(aMap) {
+                const bMap = Dictionary.asMap(b);
+                if (bMap === void 0)
                     die();
-                const r = new Dictionary();
-                d.forEach((av, ak) => {
-                    const bv = b.get(ak);
+                const r = new DictionaryMap();
+                aMap.forEach((av, ak) => {
+                    const bv = bMap.get(ak);
                     r.set(ak, bv === void 0 ? av : walk(av, bv));
                 });
-                b.forEach((bv, bk) => {
-                    if (!d.has(bk))
+                bMap.forEach((bv, bk) => {
+                    if (!aMap.has(bk))
                         r.set(bk, bv);
                 });
-                return r;
+                return r.simplifiedValue();
             },
@@ -57,0 +58,0 @@ annotated(a) {

lib/node_support.js

 // Patching to support node.js extensions.
 import { Annotated } from './annotated';
 import { Bytes } from './bytes';
-import { Set, Dictionary } from './dictionary';
+import { Set, EncodableDictionary } from './dictionary';
 import { stringify } from './text';
 import * as util from 'util';
-[Bytes, Annotated, Set, Dictionary].forEach((C) => {
+[Bytes, Annotated, Set, EncodableDictionary].forEach((C) => {
     C.prototype[util.inspect.custom] =
@@ -9,0 +9,0 @@ function (_depth, _options) {

lib/order.js

@@ -94,4 +94,4 @@ import { is, isAnnotated } from './is';
             case 10: {
-                const va = Array.from(a).sort(cmp);
-                const vb = Array.from(b).sort(cmp);
+                const va = Array.from(Dictionary.asMap(a).entries()).sort(cmp);
+                const vb = Array.from(Dictionary.asMap(b).entries()).sort(cmp);
                 return cmp(va, vb);
@@ -98,0 +98,0 @@ }

lib/reader.js

 // Text syntax reader.
 import { DecodeError, ShortPacket } from './codec';
-import { Dictionary, Set } from './dictionary';
+import { DictionaryMap, Set } from './dictionary';
 import { strip } from './strip';
@@ -369,9 +369,9 @@ import { Bytes, unhexDigit } from './bytes';
     readDictionary() {
-        return this.seq(true, new Dictionary(), (k, acc) => {
+        return this.seq(true, new DictionaryMap(), (k, acc) => {
             this.state.skipws();
             switch (this.state.peek()) {
                 case ':':
+                    this.state.advance();
                     if (acc.has(k))
                         this.state.error(`Duplicate key: ${stringify(k)}`, this.state.pos);
-                    this.state.advance();
                     acc.set(k, this.next());
@@ -382,3 +382,3 @@ break;
             }
-        }, '}');
+        }, '}').simplifiedValue();
     }
@@ -385,0 +385,0 @@ readSet() {

lib/runtime.d.ts

@@ -16,2 +16,3 @@ export * from './annotated';
 export * from './is';
+export * from './jsdictionary';
 export * from './merge';
@@ -18,0 +19,0 @@ export * from './order';

lib/runtime.js

@@ -16,2 +16,3 @@ export * from './annotated';
 export * from './is';
+export * from './jsdictionary';
 export * from './merge';
@@ -18,0 +19,0 @@ export * from './order';

lib/strip.js

 import { Annotated } from "./annotated";
 import { Record } from "./record";
-import { Set, Dictionary } from "./dictionary";
+import { Set, Dictionary, DictionaryMap } from "./dictionary";
 export function unannotate(v) {
@@ -34,3 +34,5 @@ return Annotated.isAnnotated(v) ? v.item : v;
         else if (Dictionary.isDictionary(v.item)) {
-            return v.item.mapEntries((e) => [walk(e[0]), walk(e[1])]);
+            const result = new DictionaryMap();
+            new DictionaryMap(v.item).forEach((val, key) => result.set(walk(key), walk(val)));
+            return result.simplifiedValue();
         }
@@ -37,0 +39,0 @@ else {

lib/values.d.ts

 import type { Bytes } from './bytes';
 import type { DoubleFloat } from './float';
 import type { Annotated } from './annotated';
-import type { Set, Dictionary } from './dictionary';
+import type { JsDictionary } from './jsdictionary';
+import { Set, KeyedDictionary } from './dictionary';
 import type { Embeddable, GenericEmbedded } from './embedded';
@@ -10,2 +11,2 @@ export type Value<T extends Embeddable = GenericEmbedded> = Atom | Compound<T> | T | Annotated<T>;
     label: Value<T>;
-} | Array<Value<T>> | Set<T> | Dictionary<T>;
+} | Array<Value<T>> | Set<T> | JsDictionary<Value<T>> | KeyedDictionary<T>;

lib/writer.d.ts

@@ -1,2 +0,2 @@
-import type { Embeddable, GenericEmbedded, EmbeddedTypeEncode } from "./embedded";
+import { Embeddable, GenericEmbedded, EmbeddedTypeEncode } from "./embedded";
 import type { Value } from "./values";
@@ -3,0 +3,0 @@ export type Writable<T extends Embeddable> = Value<T> | PreserveWritable<T> | Iterable<Value<T>> | ArrayBufferView;

lib/writer.js

 import { isAnnotated } from './is';
 import { Record } from "./record";
+import { isEmbedded } from "./embedded";
 import { Encoder } from "./encoder";
 import { NUMBER_RE } from './reader';
 import { encodeBase64 } from './base64';
+import { DictionaryMap, writeDictionaryOn } from './dictionary';
 export function isPreserveWritable(v) {
@@ -261,13 +263,14 @@ return typeof v === 'object' && v !== null && '__preserve_text_on__' in v && typeof v.__preserve_text_on__ === 'function';
                 }
+                else if (isEmbedded(v)) {
+                    this.state.pieces.push('#:');
+                    if ('write' in this.embeddedWrite) {
+                        this.embeddedWrite.write(this.state, v);
+                    }
+                    else {
+                        new Writer(this.state, genericEmbeddedTypeEncode)
+                            .push(this.embeddedWrite.toValue(v));
+                    }
+                }
                 else {
-                    ((v) => {
-                        this.state.pieces.push('#:');
-                        if ('write' in this.embeddedWrite) {
-                            this.embeddedWrite.write(this.state, v);
-                        }
-                        else {
-                            new Writer(this.state, genericEmbeddedTypeEncode)
-                                .push(this.embeddedWrite.toValue(v));
-                        }
-                    })(v);
+                    writeDictionaryOn(new DictionaryMap(v), this, (k, w) => w.push(k), (v, w) => w.push(v));
                 }
@@ -274,0 +277,0 @@ break;

package.json

 {
   "name": "@preserves/core",
-  "version": "0.995.101",
+  "version": "0.995.200",
   "description": "Preserves data serialization format",
@@ -26,3 +26,3 @@ "homepage": "https://gitlab.com/preserves/preserves",
   },
-  "gitHead": "f0815ce4ebac9c67fceefd13a3f3fec758c178fb"
+  "gitHead": "3e67c754275431964a06b72176573e7741f385eb"
 }

src/decoder.ts

 import { Annotated } from "./annotated";
 import { DecodeError, ShortPacket } from "./codec";
 import { Tag } from "./constants";
-import { Set, Dictionary } from "./dictionary";
+import { Set, Dictionary, DictionaryMap } from "./dictionary";
 import { DoubleFloat } from "./float";
@@ -11,3 +11,4 @@ import { Record } from "./record";
 import { GenericEmbedded, Embeddable, EmbeddedTypeDecode } from "./embedded";
-import { ReaderStateOptions } from "reader";
+import { ReaderStateOptions } from "./reader";
+import { stringify } from "./text";
 
@@ -222,8 +223,9 @@ export interface DecoderOptions {
     static dictionaryFromArray<T extends Embeddable>(vs: Value<T>[]): Dictionary<T> {
-        const d = new Dictionary<T>();
+        const d = new DictionaryMap<T>();
         if (vs.length % 2) throw new DecodeError("Missing dictionary value");
         for (let i = 0; i < vs.length; i += 2) {
+            if (d.has(vs[i])) throw new DecodeError(`Duplicate key: ${stringify(vs[i])}`);
             d.set(vs[i], vs[i+1]);
         }
-        return d;
+        return d.simplifiedValue();
     }
@@ -258,3 +260,10 @@
             case Tag.Sequence: return this.state.wrap<T>(this.nextvalues());
-            case Tag.Set: return this.state.wrap<T>(new Set(this.nextvalues()));
+            case Tag.Set: {
+                const s = new Set<T>();
+                for (const v of this.nextvalues()) {
+                    if (s.has(v)) throw new DecodeError(`Duplicate value: ${stringify(v)}`);
+                    s.add(v);
+                }
+                return this.state.wrap<T>(s);
+            }
             case Tag.Dictionary: return this.state.wrap<T>(Decoder.dictionaryFromArray(this.nextvalues()));
@@ -261,0 +270,0 @@ default: throw new DecodeError("Unsupported Preserves tag: " + tag);

src/dictionary.ts

 import { Encoder, canonicalString } from "./encoder";
 import { Tag } from "./constants";
-import { FlexMap, FlexSet, _iterMap, IdentitySet } from "./flex";
+import { FlexMap, FlexSet, _iterMap, IdentitySet, Equivalence, IsMap } from "./flex";
 import { Value } from "./values";
 import { Bytes } from './bytes';
-import type { Embeddable, GenericEmbedded } from "./embedded";
+import { Embeddable, GenericEmbedded, isEmbedded } from "./embedded";
 import type { Preservable } from "./encoder";
 import type { Writer, PreserveWritable } from "./writer";
 import { annotations, Annotated } from "./annotated";
+import { Float } from "./float";
+import { JsDictionary } from "./jsdictionary";
+import { unannotate } from "./strip";
 
@@ -16,3 +19,3 @@ export type DictionaryType = 'Dictionary' | 'Set';
 
-export class EncodableDictionary<K, V, T extends Embeddable = GenericEmbedded> extends FlexMap<K, V>
+export class EncodableDictionary<T extends Embeddable, K, V> extends FlexMap<K, V>
     implements Preservable<T>, PreserveWritable<T>
@@ -43,4 +46,4 @@ {
 
-export class KeyedDictionary<K extends CompoundKey<T>, V, T extends Embeddable = GenericEmbedded>
-    extends EncodableDictionary<K, V, T>
+export class KeyedDictionary<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>, V = Value<T>>
+    extends EncodableDictionary<T, K, V>
 {
@@ -51,5 +54,5 @@ get [DictionaryType](): DictionaryType {
 
-    static isKeyedDictionary<K extends CompoundKey<T>, V, T extends Embeddable = GenericEmbedded>(
+    static isKeyedDictionary<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>, V = Value<T>>(
         x: any,
-    ): x is KeyedDictionary<K, V, T> {
+    ): x is KeyedDictionary<T, K, V> {
         return x?.[DictionaryType] === 'Dictionary';
@@ -64,26 +67,195 @@ }
 
-    mapEntries<W, S extends Value<R>, R extends Embeddable = GenericEmbedded>(
-        f: (entry: [K, V]) => [S, W],
-    ): KeyedDictionary<S, W, R> {
-        const result = new KeyedDictionary<S, W, R>();
-        for (let oldEntry of this.entries()) {
-            const newEntry = f(oldEntry);
-            result.set(newEntry[0], newEntry[1])
+    clone(): KeyedDictionary<T, K, V> {
+        return new KeyedDictionary(this);
+    }
+
+    get [Symbol.toStringTag]() { return 'Dictionary'; }
+
+    equals(otherAny: any, eqv: Equivalence<V> = (v1, v2) => v1 === v2): boolean {
+        const otherMap = Dictionary.asMap(otherAny);
+        if (!otherMap) return false;
+        return super.equals(otherMap, eqv);
+    }
+}
+
+export type Dictionary<T extends Embeddable = GenericEmbedded, V = Value<T>> =
+    JsDictionary<V> | KeyedDictionary<T, Value<T>, V>;
+
+export class DictionaryMap<T extends Embeddable = GenericEmbedded, V = Value<T>> implements Map<Value<T>, V> {
+    get [IsMap](): boolean { return true; }
+
+    j: JsDictionary<V> | undefined;
+    k: KeyedDictionary<T, Value<T>, V> | undefined;
+
+    constructor(input?: Dictionary<T, V>) {
+        if (input === void 0) {
+            this.j = {};
+            this.k = void 0;
+        } else if (DictionaryType in input) {
+            this.j = void 0;
+            this.k = input;
+        } else {
+            this.j = input;
+            this.k = void 0;
         }
-        return result;
     }
 
-    clone(): KeyedDictionary<K, V, T> {
-        return new KeyedDictionary(this);
+    static from<T extends Embeddable = GenericEmbedded, V = Value<T>>(
+        entries: Iterable<[Value<T>, V]>,
+    ): DictionaryMap<T, V> {
+        const r = new DictionaryMap<T, V>();
+        for (const [key, value] of entries) r.set(key, value);
+        return r;
     }
 
-    get [Symbol.toStringTag]() { return 'Dictionary'; }
+    clear(): void {
+        if (this.j) {
+            JsDictionary.clear(this.j);
+        } else {
+            this.k!.clear();
+        }
+    }
+
+    delete(key: Value<T>): boolean {
+        if (this.j) {
+            key = unannotate(key);
+            if (typeof key !== 'symbol') return false;
+            return JsDictionary.remove(this.j, key);
+        } else {
+            return this.k!.delete(key);
+        }
+    }
+
+    forEach(callbackfn: (value: V, key: Value<T>, map: Map<Value<T>, V>) => void, thisArg?: any): void {
+        if (this.j) {
+            JsDictionary.forEach(this.j, (v, k) => callbackfn.call(thisArg, v, k, this));
+        } else {
+            this.k!.forEach(callbackfn, thisArg);
+        }
+    }
+
+    get(key: Value<T>): V | undefined {
+        if (this.j) {
+            key = unannotate(key);
+            if (typeof key !== 'symbol') return void 0;
+            return JsDictionary.get(this.j, key);
+        } else {
+            return this.k!.get(key);
+        }
+    }
+
+    has(key: Value<T>): boolean {
+        if (this.j) {
+            key = unannotate(key);
+            if (typeof key !== 'symbol') return false;
+            return JsDictionary.has(this.j, key);
+        } else {
+            return this.k!.has(key);
+        }
+    }
+
+    set(key: Value<T>, value: V): this {
+        if (this.j) {
+            if (typeof key === 'symbol') {
+                JsDictionary.set(this.j, key, value);
+                return this;
+            }
+            this.k = new KeyedDictionary<T, Value<T>, V>(JsDictionary.entries(this.j));
+            this.j = void 0;
+        }
+        this.k!.set(key, value);
+        return this;
+    }
+
+    get size(): number {
+        return this.j ? JsDictionary.size(this.j) : this.k!.size;
+    }
+
+    entries(): IterableIterator<[Value<T>, V]> {
+        return this.j ? JsDictionary.entries(this.j) : this.k!.entries();
+    }
+
+    keys(): IterableIterator<Value<T>> {
+        return this.j ? JsDictionary.keys(this.j) : this.k!.keys();
+    }
+
+    values(): IterableIterator<V> {
+        return this.j ? JsDictionary.values(this.j) : this.k!.values();
+    }
+
+    [Symbol.iterator](): IterableIterator<[Value<T>, V]> {
+        return this.entries();
+    }
+
+    get [Symbol.toStringTag](): string {
+        return 'DictionaryMap';
+    }
+
+    clone(): DictionaryMap<T, V> {
+        return new DictionaryMap<T, V>(this.j ? JsDictionary.clone(this.j) : this.k!.clone());
+    }
+
+    get value(): Dictionary<T, V> {
+        return this.j ?? this.k!;
+    }
+
+    simplify(): void {
+        if (!this.j) {
+            const r: JsDictionary<V> = {};
+            for (const [key, value] of this.k!.entries()) {
+                if (typeof key !== 'symbol') return;
+                r[key.description!] = value;
+            }
+            this.j = r;
+            this.k = void 0;
+        }
+    }
+
+    simplifiedValue(): Dictionary<T, V> {
+        this.simplify();
+        return this.value;
+    }
+
+    asJsDictionary(): JsDictionary<V> {
+        this.simplify();
+        if (!this.j) throw new Error("Cannot represent general dictionary as JsDictionary");
+        return this.j;
+    }
+
+    asKeyedDictionary(): KeyedDictionary<T, Value<T>, V> {
+        return this.k ?? new KeyedDictionary<T, Value<T>, V>(JsDictionary.entries(this.j!));
+    }
 }
 
-export class Dictionary<T extends Embeddable = GenericEmbedded, V = Value<T>> extends KeyedDictionary<Value<T>, V, T> {
-    static isDictionary<T extends Embeddable = GenericEmbedded, V = Value<T>>(x: any): x is Dictionary<T, V> {
-        return x?.[DictionaryType] === 'Dictionary';
+export namespace Dictionary {
+    export function isDictionary<T extends Embeddable = GenericEmbedded, V = Value<T>>(
+        x: any
+    ): x is Dictionary<T, V> {
+        if (typeof x !== 'object' || x === null) return false;
+        switch (x[DictionaryType]) {
+            case 'Dictionary': return true;
+            case void 0: return JsDictionary.isJsDictionary(x);
+            default: return false;
+        }
     }
 
-    static __from_preserve__<T extends Embeddable>(v: Value<T>): undefined | Dictionary<T> {
+    export function asMap<T extends Embeddable = GenericEmbedded, V = Value<T>>(
+        x: Dictionary<T, V>
+    ): DictionaryMap<T, V>;
+    export function asMap<T extends Embeddable = GenericEmbedded, V = Value<T>>(
+        x: any
+    ): DictionaryMap<T, V> | undefined;
+    export function asMap<T extends Embeddable = GenericEmbedded, V = Value<T>>(
+        x: any
+    ): DictionaryMap<T, V> | undefined {
+        return isDictionary<T, V>(x) ? new DictionaryMap(x) : void 0;
+    }
+
+    export function from<T extends Embeddable = GenericEmbedded, V = Value<T>>(
+        entries: Iterable<[Value<T>, V]>,
+    ): Dictionary<T, V> {
+        return DictionaryMap.from(entries).simplifiedValue();
+    }
+
+    export function __from_preserve__<T extends Embeddable>(v: Value<T>): undefined | Dictionary<T> {
         return Dictionary.isDictionary<T>(v) ? v : void 0;
@@ -93,3 +265,3 @@ }
 
-export function encodeDictionaryOn<K, V, T extends Embeddable>(
+export function encodeDictionaryOn<T extends Embeddable, K, V>(
     dict: Map<K, V>,
@@ -124,3 +296,3 @@ encoder: Encoder<T>,
 
-export function writeDictionaryOn<K, V, T extends Embeddable>(
+export function writeDictionaryOn<T extends Embeddable, K, V>(
     dict: Map<K, V>,
@@ -146,3 +318,3 @@ w: Writer<T>,
 
-export class EncodableSet<V, T extends Embeddable = GenericEmbedded> extends FlexSet<V>
+export class EncodableSet<T extends Embeddable, V> extends FlexSet<V>
     implements Preservable<T>, PreserveWritable<T>
@@ -166,4 +338,4 @@ {
 
-export class KeyedSet<K extends CompoundKey<T>, T extends Embeddable = GenericEmbedded>
-    extends EncodableSet<K, T>
+export class KeyedSet<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>>
+    extends EncodableSet<T, K>
 {
@@ -174,5 +346,5 @@ get [DictionaryType](): DictionaryType {
 
-    static isKeyedSet<K extends CompoundKey<T>, T extends Embeddable = GenericEmbedded>(
+    static isKeyedSet<T extends Embeddable = GenericEmbedded, K extends CompoundKey<T> = Value<T>>(
         x: any,
-    ): x is KeyedSet<K, T> {
+    ): x is KeyedSet<T, K> {
         return x?.[DictionaryType] === 'Set';
@@ -185,10 +357,10 @@ }
 
-    map<S extends Value<R>, R extends Embeddable = GenericEmbedded>(
+    map<R extends Embeddable = GenericEmbedded, S extends Value<R> = Value<R>>(
         f: (value: K) => S,
-    ): KeyedSet<S, R> {
+    ): KeyedSet<R, S> {
         return new KeyedSet(_iterMap(this[Symbol.iterator](), f));
     }
 
-    filter(f: (value: K) => boolean): KeyedSet<K, T> {
-        const result = new KeyedSet<K, T>();
+    filter(f: (value: K) => boolean): KeyedSet<T, K> {
+        const result = new KeyedSet<T, K>();
         for (let k of this) if (f(k)) result.add(k);
@@ -198,3 +370,3 @@ return result;
 
-    clone(): KeyedSet<K, T> {
+    clone(): KeyedSet<T, K> {
         return new KeyedSet(this);
@@ -206,3 +378,3 @@ }
 
-export class Set<T extends Embeddable = GenericEmbedded> extends KeyedSet<Value<T>, T> {
+export class Set<T extends Embeddable = GenericEmbedded> extends KeyedSet<T> {
     static isSet<T extends Embeddable = GenericEmbedded>(x: any): x is Set<T> {
@@ -217,3 +389,3 @@ return x?.[DictionaryType] === 'Set';
 
-export function encodeSetOn<V, T extends Embeddable>(
+export function encodeSetOn<T extends Embeddable, V>(
     s: IdentitySet<V>,
@@ -239,3 +411,3 @@ encoder: Encoder<T>,
 
-export function writeSetOn<V, T extends Embeddable>(
+export function writeSetOn<T extends Embeddable, V>(
     s: IdentitySet<V>,
@@ -242,0 +414,0 @@ w: Writer<T>,

src/embedded.ts

 import type { DecoderState } from "./decoder";
 import type { EncoderState } from "./encoder";
 import type { Value } from "./values";
-import { Annotated } from "./annotated";
-import { Bytes } from "./bytes";
-import { Float } from "./float";
-import { Set, Dictionary } from "./dictionary";
 import { ReaderStateOptions } from "./reader";
 
-export type Embeddable = object;
+export const IsEmbedded = Symbol.for('IsEmbedded');
 
+export interface Embeddable {
+    readonly [IsEmbedded]: true;
+}
+
+export function isEmbedded<T extends Embeddable>(v: any): v is T {
+    return !!v?.[IsEmbedded];
+}
+
 export type EmbeddedTypeEncode<T extends Embeddable> = {
@@ -23,24 +27,16 @@ encode(s: EncoderState, v: T): void;
 
-export function isEmbedded<T extends Embeddable>(v: Value<T>): v is T {
-    return (typeof(v) === 'object')
-        && (v !== null)
-        && !Array.isArray(v)
-        && !Bytes.isBytes(v)
-        && !Float.isFloat(v)
-        && !Set.isSet<T>(v)
-        && !Dictionary.isDictionary<T>(v)
-        && !Annotated.isAnnotated<T>(v)
-        && ((_v: T) => true)(v);
-}
+export class Embedded<T> {
+    get [IsEmbedded](): true { return true; }
 
-export class Embedded<T> {
     constructor(public readonly value: T) {}
+
+    equals(other: any): boolean {
+        return typeof other === 'object' && 'value' in other && Object.is(this.value, other.value);
+    }
 }
 
 export class GenericEmbedded {
-    generic: Value;
+    get [IsEmbedded](): true { return true; }
 
-    constructor(generic: Value) {
-        this.generic = generic;
-    }
+    constructor(public readonly generic: Value) {}
 
@@ -47,0 +43,0 @@ equals(other: any, is: (a: any, b: any) => boolean) {

src/encoder.ts

@@ -6,4 +6,5 @@ import { Tag } from "./constants";
 import { Record, Tuple } from "./record";
-import { EmbeddedTypeEncode } from "./embedded";
+import { EmbeddedTypeEncode, isEmbedded } from "./embedded";
 import type { Embeddable } from "./embedded";
+import { DictionaryMap, encodeDictionaryOn } from "./dictionary";
 
@@ -292,7 +293,11 @@ export type Encodable<T extends Embeddable> =
         }
+        else if (isEmbedded<T>(v)) {
+            this.state.emitbyte(Tag.Embedded);
+            this.embeddedEncode.encode(this.state, v);
+        }
         else {
-            ((v: T) => {
-                this.state.emitbyte(Tag.Embedded);
-                this.embeddedEncode.encode(this.state, v);
-            })(v);
+            encodeDictionaryOn(new DictionaryMap<T>(v),
+                               this,
+                               (k, e) => e.push(k),
+                               (v, e) => e.push(v));
         }
@@ -299,0 +304,0 @@ return this; // for chaining

src/fold.ts

 import { Record, Tuple } from "./record";
 import { Bytes } from "./bytes";
 import { Value } from "./values";
-import { Set, Dictionary } from "./dictionary";
+import { Set, KeyedDictionary, Dictionary, DictionaryMap } from "./dictionary";
 import { annotate, Annotated } from "./annotated";
 import { Double, Float } from "./float";
-import { Embeddable } from "./embedded";
+import { Embeddable, isEmbedded } from "./embedded";
 
@@ -37,3 +37,3 @@ export enum ValueClass {
     set(s: Set<T>, k: Fold<T, R>): R;
-    dictionary(d: Dictionary<T>, k: Fold<T, R>): R;
+    dictionary(d: DictionaryMap<T>, k: Fold<T, R>): R;
 
@@ -58,3 +58,3 @@ annotated(a: Annotated<T>, k: Fold<T, R>): R;
     set(s: Set<T>, k: Fold<T, void>): void { s.forEach(k); }
-    dictionary(d: Dictionary<T>, k: Fold<T, void>): void {
+    dictionary(d: DictionaryMap<T>, k: Fold<T, void>): void {
         d.forEach((value, key) => { k(key); k(value); });
@@ -99,4 +99,6 @@ }
     }
-    dictionary(d: Dictionary<T>, k: Fold<T, Value<R>>): Value<R> {
-        return d.mapEntries(([key, value]) => [k(key), k(value)]);
+    dictionary(d: DictionaryMap<T>, k: Fold<T, Value<R>>): Value<R> {
+        const result = new DictionaryMap<R>();
+        d.forEach((value, key) => result.set(k(key), k(value)));
+        return result.simplifiedValue();
     }
@@ -194,4 +196,4 @@ annotated(a: Annotated<T>, k: Fold<T, Value<R>>): Value<R> {
                     return o.set(v, walk);
-                } else if (Dictionary.isDictionary<T>(v)) {
-                    return o.dictionary(v, walk);
+                } else if (isEmbedded(v)) {
+                    return o.embedded(v, walk);
                 } else if (Annotated.isAnnotated<T>(v)) {
@@ -203,4 +205,4 @@ return o.annotated(v, walk);
                     return o.double(v.value);
-                } else {
-                    return ((_v: T) => o.embedded(v, walk))(v);
+                } else if (Dictionary.isDictionary<T>(v)) {
+                    return o.dictionary(new DictionaryMap(v), walk);
                 }
@@ -207,0 +209,0 @@ default:

src/fromjs.ts

@@ -1,6 +0,7 @@
-import { Embeddable, GenericEmbedded } from "./embedded";
+import { Embeddable, GenericEmbedded, isEmbedded } from "./embedded";
 import { Bytes } from "./bytes";
 import { Record, Tuple } from "./record";
 import { Value } from "./values";
-import { Dictionary, Set } from "./dictionary";
+import { Dictionary, KeyedDictionary, Set } from "./dictionary";
+import { JsDictionary } from "./jsdictionary";
 
@@ -42,3 +43,3 @@ export function fromJS<T extends Embeddable = GenericEmbedded>(x: any): Value<T> {
             if (Map.isMap(x)) {
-                const d = new Dictionary<T>();
+                const d = new KeyedDictionary<T>();
                 x.forEach((v, k) => d.set(fromJS(k), fromJS(v)));
@@ -52,4 +53,11 @@ return d;
             }
-            // Just... assume it's a T.
-            return x as T;
+            if (isEmbedded<T>(x)) {
+                return x;
+            }
+            // Handle plain JS objects to build a JsDictionary
+            {
+                const r: JsDictionary<Value<T>> = {};
+                Object.entries(x).forEach(([k, v]) => r[k] = fromJS(v));
+                return r;
+            }
 
@@ -65,15 +73,14 @@ default:
     namespace Dictionary {
-        export function fromJS<T extends Embeddable = GenericEmbedded, V extends Embeddable = GenericEmbedded>(
+        export function stringMap<T extends Embeddable = GenericEmbedded>(
             x: object
-        ): Dictionary<T, Value<V>>;
+        ): KeyedDictionary<T, string, Value<T>>;
     }
 }
 
-Dictionary.fromJS = function <T extends Embeddable = GenericEmbedded, V extends Embeddable = GenericEmbedded>(
+Dictionary.stringMap = function <T extends Embeddable = GenericEmbedded>(
     x: object
-): Dictionary<T, Value<V>> {
-    if (Dictionary.isDictionary<T, Value<V>>(x)) return x;
-    const d = new Dictionary<T, Value<V>>();
-    Object.entries(x).forEach(([key, value]) => d.set(key, fromJS(value)));
-    return d;
+): KeyedDictionary<T, string, Value<T>> {
+    const r = new KeyedDictionary<T, string, Value<T>>();
+    Object.entries(x).forEach(([key, value]) => r.set(key, fromJS(value)));
+    return r;
 };

src/is.ts

 import type { Embeddable, GenericEmbedded } from "./embedded";
 import type { Annotated } from "./annotated";
+import { Dictionary } from "./dictionary";
 
@@ -33,4 +34,15 @@ export const IsPreservesAnnotated = Symbol.for('IsPreservesAnnotated');
         }
+        {
+            const aMap = Dictionary.asMap(a);
+            const bMap = Dictionary.asMap(b);
+            if (!aMap || !bMap) return false;
+            if (aMap.size !== bMap.size) return false;
+            for (const k of aMap.keys()) {
+                if (!bMap.has(k)) return false;
+                if (!is(aMap.get(k), bMap.get(k))) return false;
+            }
+            return true;
+        }
     }
     return false;
 }

src/merge.ts

@@ -6,3 +6,3 @@ import { Record, Tuple } from "./record";
 import { Value } from "./values";
-import { Set, Dictionary } from "./dictionary";
+import { Set, Dictionary, KeyedDictionary, DictionaryMap } from "./dictionary";
 import { Annotated } from "./annotated";
@@ -13,2 +13,3 @@ import { unannotate } from "./strip";
 import type { Embeddable } from "./embedded";
+import { JsDictionary } from "./jsdictionary";
 
@@ -48,2 +49,3 @@ export function merge<T extends Embeddable>(
             },
+
             array(a: Array<Value<T>>) {
@@ -53,14 +55,18 @@ if (!Array.isArray(b) || Record.isRecord(b)) die();
             },
+
             set(_s: Set<T>) { die(); },
-            dictionary(d: Dictionary<T>) {
-                if (!Dictionary.isDictionary<T>(b)) die();
-                const r = new Dictionary<T>();
-                d.forEach((av,ak) => {
-                    const bv = b.get(ak);
+
+            dictionary(aMap: DictionaryMap<T>) {
+                const bMap = Dictionary.asMap<T>(b);
+                if (bMap === void 0) die();
+
+                const r = new DictionaryMap<T>();
+                aMap.forEach((av,ak) => {
+                    const bv = bMap.get(ak);
                     r.set(ak, bv === void 0 ? av : walk(av, bv));
                 });
-                b.forEach((bv, bk) => {
-                    if (!d.has(bk)) r.set(bk, bv);
+                bMap.forEach((bv, bk) => {
+                    if (!aMap.has(bk)) r.set(bk, bv);
                 });
-                return r;
+                return r.simplifiedValue();
             },
@@ -67,0 +73,0 @@

src/node_support.ts

@@ -5,3 +5,3 @@ // Patching to support node.js extensions.
 import { Bytes } from './bytes';
-import { Set, Dictionary } from './dictionary';
+import { Set, EncodableDictionary } from './dictionary';
 import { stringify } from './text';
@@ -11,3 +11,3 @@
 
-[Bytes, Annotated, Set, Dictionary].forEach((C) => {
+[Bytes, Annotated, Set, EncodableDictionary].forEach((C) => {
     (C as any).prototype[util.inspect.custom] =
@@ -14,0 +14,0 @@ function (_depth: any, _options: any) {

src/order.ts

@@ -92,4 +92,4 @@ import { is, isAnnotated } from './is';
             case 10: {
-                const va = Array.from(a as Dictionary<T>).sort(cmp);
-                const vb = Array.from(b as Dictionary<T>).sort(cmp);
+                const va = Array.from(Dictionary.asMap<T>(a)!.entries()).sort(cmp);
+                const vb = Array.from(Dictionary.asMap<T>(b)!.entries()).sort(cmp);
                 return cmp(va, vb);
@@ -96,0 +96,0 @@ }

src/reader.ts

@@ -5,3 +5,3 @@ // Text syntax reader.
 import { DecodeError, ShortPacket } from './codec';
-import { Dictionary, Set } from './dictionary';
+import { Dictionary, DictionaryMap, Set } from './dictionary';
 import { strip } from './strip';
@@ -402,18 +402,14 @@ import { Bytes, unhexDigit } from './bytes';
     readDictionary(): Dictionary<T> {
-        return this.seq(true,
-                        new Dictionary<T>(),
-                        (k, acc) => {
-                            this.state.skipws();
-                            switch (this.state.peek()) {
-                                case ':':
-                                    if (acc.has(k)) this.state.error(
-                                        `Duplicate key: ${stringify(k)}`, this.state.pos);
-                                    this.state.advance();
-                                    acc.set(k, this.next());
-                                    break;
-                                default:
-                                    this.state.error('Missing key/value separator', this.state.pos);
-                            }
-                        },
-                        '}');
+        return this.seq(true, new DictionaryMap<T>(), (k, acc) => {
+            this.state.skipws();
+            switch (this.state.peek()) {
+                case ':':
+                    this.state.advance();
+                    if (acc.has(k)) this.state.error(`Duplicate key: ${stringify(k)}`, this.state.pos);
+                    acc.set(k, this.next());
+                    break;
+                default:
+                    this.state.error('Missing key/value separator', this.state.pos);
+            }
+        }, '}').simplifiedValue();
     }
@@ -420,0 +416,0 @@

src/runtime.ts

@@ -16,2 +16,3 @@ export * from './annotated';
 export * from './is';
+export * from './jsdictionary';
 export * from './merge';
@@ -18,0 +19,0 @@ export * from './order';

src/strip.ts

 import { Value } from "./values";
 import { Annotated } from "./annotated";
 import { Record, Tuple } from "./record";
-import { Set, Dictionary } from "./dictionary";
+import { Set, Dictionary, DictionaryMap } from "./dictionary";
 import type { Embeddable, GenericEmbedded } from "./embedded";
@@ -37,3 +37,5 @@
         } else if (Dictionary.isDictionary<T>(v.item)) {
-            return v.item.mapEntries((e) => [walk(e[0]), walk(e[1])]);
+            const result = new DictionaryMap<T>();
+            new DictionaryMap<T>(v.item).forEach((val, key) => result.set(walk(key), walk(val)));
+            return result.simplifiedValue();
         } else {
@@ -40,0 +42,0 @@ return v.item;

src/values.ts

@@ -6,3 +6,4 @@ // Preserves Values.
 import type { Annotated } from './annotated';
-import type { Set, Dictionary } from './dictionary';
+import type { JsDictionary } from './jsdictionary';
+import { Set, KeyedDictionary } from './dictionary';
 import type { Embeddable, GenericEmbedded } from './embedded';
@@ -31,2 +32,5 @@
     | Set<T>
-    | Dictionary<T>;
+      // v Expanded from definition of Dictionary<> in dictionary.ts,
+      // because of circular-use-of-Value<T> issues.
+    | JsDictionary<Value<T>>
+    | KeyedDictionary<T>;

src/writer.ts

 import { isAnnotated } from './is';
 import { Record, Tuple } from "./record";
-import type { Embeddable, GenericEmbedded, EmbeddedTypeEncode } from "./embedded";
+import { Embeddable, GenericEmbedded, EmbeddedTypeEncode, isEmbedded } from "./embedded";
 import { Encoder, EncoderState } from "./encoder";
@@ -8,2 +8,3 @@ import type { Value } from "./values";
 import { encodeBase64 } from './base64';
+import { DictionaryMap, writeDictionaryOn } from './dictionary';
 
@@ -302,12 +303,15 @@ export type Writable<T extends Embeddable> =
                 }
-                else {
-                    ((v: T) => {
-                        this.state.pieces.push('#:');
-                        if ('write' in this.embeddedWrite) {
-                            this.embeddedWrite.write(this.state, v);
-                        } else {
-                            new Writer(this.state, genericEmbeddedTypeEncode)
-                                .push(this.embeddedWrite.toValue(v));
-                        }
-                    })(v);
+                else if (isEmbedded(v)) {
+                    this.state.pieces.push('#:');
+                    if ('write' in this.embeddedWrite) {
+                        this.embeddedWrite.write(this.state, v);
+                    } else {
+                        new Writer(this.state, genericEmbeddedTypeEncode)
+                            .push(this.embeddedWrite.toValue(v));
+                    }
+                } else {
+                    writeDictionaryOn(new DictionaryMap<T>(v),
+                                      this,
+                                      (k, w) => w.push(k),
+                                      (v, w) => w.push(v));
                 }
@@ -314,0 +318,0 @@ break;

test/codec.test.ts

@@ -21,2 +21,4 @@ import {
     parse,
+    Embedded,
+    KeyedDictionary,
 } from '../src/index';
@@ -79,3 +81,3 @@ const { Tag } = Constants;
     it('should be done safely, even with nested dictionaries', () => {
-        expect(canonicalEncode(fromJS(['aaa', Dictionary.fromJS({a: 1}), 'zzz'])).toHex()).is(
+        expect(canonicalEncode(fromJS(['aaa', Dictionary.stringMap({a: 1}), 'zzz'])).toHex()).is(
             `b5
@@ -92,24 +94,20 @@ b103616161
 describe('encoding and decoding embeddeds', () => {
-    class LookasideEmbeddedType implements EmbeddedType<object> {
-        readonly objects: object[];
+    class LookasideEmbeddedType implements EmbeddedType<Embedded<object>> {
+        readonly objects: Embedded<object>[];
 
-        constructor(objects: object[]) {
+        constructor(objects: Embedded<object>[]) {
             this.objects = objects;
         }
 
-        decode(d: DecoderState): object {
+        decode(d: DecoderState): Embedded<object> {
             return this.fromValue(new Decoder<GenericEmbedded>(d).next());
         }
 
-        encode(e: EncoderState, v: object): void {
+        encode(e: EncoderState, v: Embedded<object>): void {
             new Encoder(e).push(this.toValue(v));
         }
 
-        equals(a: object, b: object): boolean {
-            return Object.is(a, b);
-        }
-
-        fromValue(v: Value<GenericEmbedded>): object {
+        fromValue(v: Value<GenericEmbedded>): Embedded<object> {
             if (typeof v !== 'number' || v < 0 || v >= this.objects.length) {
-                throw new Error("Unknown embedded target");
+                throw new Error(`Unknown embedded target: ${stringify(v)}`);
             }
@@ -119,3 +117,3 @@ return this.objects[v];
 
-        toValue(v: object): number {
+        toValue(v: Embedded<object>): number {
             let i = this.objects.indexOf(v);
@@ -129,4 +127,4 @@ if (i !== -1) return i;
     it('should encode using embeddedId when no function has been supplied', () => {
-        const A1 = {a: 1};
-        const A2 = {a: 1};
+        const A1 = new Embedded({a: 1});
+        const A2 = new Embedded({a: 1});
         const bs1 = canonicalEncode(A1);
@@ -148,6 +146,6 @@ const bs2 = canonicalEncode(A2);
     it('should encode properly', () => {
-        const objects: object[] = [];
+        const objects: Embedded<object>[] = [];
         const pt = new LookasideEmbeddedType(objects);
-        const A = {a: 1};
-        const B = {b: 2};
+        const A = new Embedded({a: 1});
+        const B = new Embedded({b: 2});
         expect(encode([A, B], { embeddedEncode: pt })).is(
@@ -161,6 +159,6 @@ Bytes.from([Tag.Sequence,
     it('should decode properly', () => {
-        const objects: object[] = [];
+        const objects: Embedded<object>[] = [];
         const pt = new LookasideEmbeddedType(objects);
-        const X = {x: 123};
-        const Y = {y: 456};
+        const X = new Embedded({x: 123});
+        const Y = new Embedded({y: 456});
         objects.push(X);
@@ -176,6 +174,6 @@ objects.push(Y);
     it('should store embeddeds embedded in map keys correctly', () => {
-        const A1a = {a: 1};
+        const A1a = new Embedded({a: 1});
         const A1 = A1a;
-        const A2 = {a: 1};
-        const m = new Dictionary<object, number>();
+        const A2 = new Embedded({a: 1});
+        const m = new KeyedDictionary<Embedded<object>, Value<Embedded<object>>, number>();
         m.set([A1], 1);
@@ -187,3 +185,3 @@ m.set([A2], 2);
         expect(m.get([{a: 1}])).toBeUndefined();
-        A1a.a = 3;
+        A1a.value.a = 3;
         expect(m.get([A1])).toBe(1);
@@ -318,3 +316,3 @@ });
                    Dictionary<GenericEmbedded>);
-    tests.forEach((t0: Value<GenericEmbedded>, tName0: Value<GenericEmbedded>) => {
+    Dictionary.asMap(tests).forEach((t0, tName0) => {
         const tName = Symbol.keyFor(strip(tName0) as symbol)!;
@@ -321,0 +319,0 @@ const t = peel(t0) as Record<symbol, any, GenericEmbedded>;

test/reader.test.ts

@@ -1,2 +0,2 @@
-import { Bytes, Decoder, genericEmbeddedType, encode, Reader, Double } from '../src/index';
+import { Bytes, Decoder, genericEmbeddedType, encode, Reader, Double, KeyedDictionary, Value } from '../src/index';
 import './test-utils';
@@ -39,2 +39,21 @@
     });
+
+    it('should produce a sensible JS object for symbol-keyed dictionaries', () => {
+        expect(new Reader('{a: 1, b: 2}').next()).toEqual({a: 1, b: 2});
+    });
+
+    it('should produce a sensible dictionary for mixed-keyed dictionaries', () => {
+        expect(new Reader('{a: 1, "b": 2}').next()).is(
+            new KeyedDictionary([[Symbol.for('a'), 1], ["b", 2]] as [Value, Value][]));
+    });
+
+    it('should produce a sensible dictionary for string-keyed dictionaries', () => {
+        expect(new Reader('{"a": 1, "b": 2}').next()).is(
+            new KeyedDictionary([["a", 1], ["b", 2]] as [Value, Value][]));
+    });
+
+    it('should produce a sensible dictionary for integer-keyed dictionaries', () => {
+        expect(new Reader('{9: 1, 8: 2}').next()).is(
+            new KeyedDictionary([[9, 1], [8, 2]] as [Value, Value][]));
+    });
 });

test/values.test.ts

@@ -1,2 +0,2 @@
-import { Double, fromJS, Dictionary, IDENTITY_FOLD, fold, mapEmbeddeds, Value, preserves } from '../src/index';
+import { Double, fromJS, IDENTITY_FOLD, fold, mapEmbeddeds, Value, preserves, KeyedDictionary, Embeddable, Embedded } from '../src/index';
 import './test-utils';
@@ -11,9 +11,9 @@
 describe('fold', () => {
-    function mkv<T extends object>(t: T): Value<T> {
+    function mkv<T extends Embeddable>(t: T): Value<T> {
         return fromJS<T>([
             1,
             2,
-            new Dictionary([[[3, 4], fromJS([5, 6])],
-                            ['a', 1],
-                            ['b', true]]),
+            new KeyedDictionary<T>([[[3, 4], fromJS([5, 6])],
+                                    ['a', 1],
+                                    ['b', true]]),
             Double(3.4),
@@ -26,8 +26,8 @@ t,
         const w = new Date();
-        const v = mkv(w);
+        const v = mkv(new Embedded(w));
         expect(fold(v, IDENTITY_FOLD)).is(v);
         const w1 = new Date();
-        const v1 = mkv(w1);
+        const v1 = mkv(new Embedded(w1));
         expect(fold(v, IDENTITY_FOLD)).not.is(v1);
-        expect(mapEmbeddeds(v, _t => w1)).is(v1);
+        expect(mapEmbeddeds(v, _t => new Embedded(w1))).is(v1);
     });
@@ -74,2 +74,8 @@ });
     });
+    it('should compare equivalent JsDictionary and KeyedDictionary values sensibly', () => {
+        const a = {a: 1, b: 2};
+        const b = new KeyedDictionary(
+            [[Symbol.for('a'), 1], [Symbol.for('b'), 2]] as [Value, Value][]);
+        expect(a).is(b);
+    });
 });
@@ -88,2 +94,16 @@
     });
+    it('should format regular JS objects', () => {
+        expect(preserves`>${({a: 1, b: 2})}<`)
+            .toBe('>{a: 1 b: 2}<');
+    });
+    it('should format dictionaries with string keys', () => {
+        const v = new KeyedDictionary([["a", 1], ["b", 2]]);
+        expect(preserves`>${v}<`)
+            .toBe('>{"a": 1 "b": 2}<');
+    });
+    it('should format dictionaries with symbol keys', () => {
+        const v = new KeyedDictionary([[Symbol.for("a"), 1], [Symbol.for("b"), 2]]);
+        expect(preserves`>${v}<`)
+            .toBe('>{a: 1 b: 2}<');
+    });
 });

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increased by8.91%

Number of package files

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increased by3.17%

Lines of code

14658

increased by8.8%

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