Transaction

jrun
M‰{"in":0,"ref":["native://Jig"],"out":["c12f3d83d0a4db201c3e1ad7ecc682596ef5e4d3c4dfe1f0267999c68e02b4f2","2db315449d20dcc41488a245517866c441ba2d86488331d61d033a1f479a80ea"],"del":[],"cre":["mge9PJwnAno5Z3pehdqqUF7CEekHmFvfYu","mge9PJwnAno5Z3pehdqqUF7CEekHmFvfYu"],"exec":[{"op":"DEPLOY","data":["class TokenContract extends Jig {\n //\n // with RUN 0.6 preview version \n //\n init(...tokens) {\n this.classname = \"TokenContract: \";\n const function_id = this.classname + \"init(): \"; // The base Token class cannot be created on its own\n\n if (Object.getPrototypeOf(this.constructor) === Jig) {\n throw new Error('Token must be extended');\n } // Case: Mint\n\n\n if (caller === this.constructor) {\n // call from static function of this class\n this._checkAmount(caller.mintAmount);\n\n this.amount = caller.mintAmount;\n return;\n } // Case: Send\n\n\n if (caller && caller.constructor === this.constructor) {\n this._checkAmount(caller.sendAmount);\n\n this.amount = caller.sendAmount;\n this.owner = caller.sendOwner;\n return;\n } // Case: Combine\n\n\n if (!Array.isArray(tokens) || tokens.length < 2) {\n throw new Error('Invalid tokens to combine');\n } // Each token to combine must all be of this type\n\n\n if (tokens.some(token => token.constructor !== this.constructor)) {\n throw new Error('Cannot combine different token classes');\n } // Check for duplicate tokens in the array\n\n\n const countOf = token => tokens.reduce((count, next) => next === token ? count + 1 : count, 0);\n\n if (tokens.some(token => countOf(token) > 1)) throw new Error('Cannot combine duplicate tokens'); // Destroy each token, absorbing it into this one\n\n this.amount = 0;\n tokens.forEach(token => {\n this.amount += token.amount;\n token.destroy();\n }); // Make sure our new amount is within safe range\n\n this._checkAmount(this.amount);\n }\n\n static mint(amount) {\n this.mintAmount = amount;\n const token = new this();\n delete this.mintAmount;\n this.supply += amount;\n return token;\n }\n\n static reduceSupply(amount) {\n const function_id = this.name + (this.tokenName ? \" (\" + this.tokenName + \")\" : \"\") + \": reduceSupply(): \";\n console.log(function_id + \" caller = \" + caller + \"\\n\", caller);\n\n if (caller instanceof this) {\n console.log(function_id + \"inside\");\n\n if (caller.owner == this.owner) {\n console.log(function_id + \" caller owner is also class owner\");\n this.supply -= amount;\n }\n }\n } // redefining the one from extended Jig class\n\n\n destroy() {\n const function_id = this.classname + \"destroy(): \"; // beware destroy applies to all coins so it doesn't decrease supply because that would require the class's owner access\n // so you should use BURN to burn coins & reduce supply at the same time\n // we could also check in destroy() if the caller is the class owner to reduce supply in that case\n\n /*\r\n // this doesn't work because we cannot do this.constructor.supply -= this.amount, or we get an Error: Updates must be performed in the jig's methods\r\n if(caller==null) { // distinguish between destroy due to combining tokens, which doesn't decrease supply, and destroy done by the user (where caller==null)\r\n console.log(function_id+\" caller is the user and not combine()\")\r\n if(this.owner == this.constructor.owner) {\r\n console.log(function_id+\" token owner is also the token's class owner\") \r\n // user called destroy(). we are not combining tokens\r\n // send to burn address, or send issuer a destroy receipt jig, or decrease supply if caller is the class owner\r\n this.constructor.supply -= this.amount\r\n }\r\n }\r\n */\n\n console.log(function_id + \" caller : \" + caller + \"\\n\", caller);\n\n if (caller instanceof this.constructor) {// destroy() from combining tokens, do nothing\n } else {\n // caller is null if called by user\n // user called destroy(). we are not combining tokens\n // send to burn address, or send issuer a destroy receipt jig\n console.log(function_id + \" reducing token supply\");\n this.constructor.reduceSupply(this.amount);\n }\n\n super.destroy();\n this.amount = 0;\n }\n\n send(to, amount = this.amount) {\n this._checkAmount(amount);\n\n if (amount > this.amount) {\n throw new Error('Not enough funds');\n }\n\n this.sendAmount = amount;\n this.sendOwner = to;\n const sent = new this.constructor();\n delete this.sendAmount;\n delete this.sendOwner;\n\n if (this.amount === amount) {\n this.destroy();\n } else {\n this.amount -= amount;\n }\n\n return sent;\n }\n\n _checkAmount(amount) {\n if (typeof amount !== 'number') throw new Error('amount is not a number');\n if (!Number.isInteger(amount)) throw new Error('amount must be an integer');\n if (amount <= 0) throw new Error('amount must be positive');\n if (amount > Number.MAX_SAFE_INTEGER) throw new Error('amount too large');\n }\n\n}",{"decimals":8,"deps":{"Jig":{"$jig":0},"expect":{"$jig":2}},"icon":{"emoji":null},"sealed":false,"supply":0,"symbol":null},"function expect(t){let e=!1;const 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map\",e),toBeUint8Array:e=>r(t instanceof Uint8Array,\"a uint8array\",e),toBeClass:e=>r(\"function\"==typeof t&&t.toString().startsWith(\"class\"),\"a class\",e),toBeFunction:e=>r(\"function\"==typeof t&&!t.toString().startsWith(\"class\"),\"a function\",e),toBeJigClass:e=>r(\"function\"==typeof t&&t.toString().startsWith(\"class\")&&i(t,Jig),\"a jig class\",e),toExtendFrom:(e,n)=>r(i(t,e),\"an extension of \"+(e&&e.name),n)}}",{"deps":{"Jig":{"$dup":["1","deps","Jig"]}}}]}]}