ethjs-abi - npm Package Compare versions

Comparing version 0.2.0 to 0.2.1

lib/index.js

@@ -82,2 +82,3 @@ 'use strict';
     var coder = getParamCoder(type);
+
     if (coder.dynamic) {
@@ -91,3 +92,7 @@ var dynamicOffset = uint256Coder.decode(data, offset);
     }
-    if (useNumberedParams) values[index] = result.value;
+
+    if (useNumberedParams) {
+      values[index] = result.value;
+    }
+
     if (names[index]) {
@@ -100,9 +105,15 @@ values[names[index]] = result.value;
 
+// create an encoded method signature from an ABI object
+function encodeSignature(method) {
+  var signature = method.name + '(' + utils.getKeys(method.inputs, 'type').join(',') + ')';
+  var signatureEncoded = '0x' + new Buffer(utils.keccak256(signature), 'hex').slice(0, 4).toString('hex');
+
+  return signatureEncoded;
+}
+
 // encode method ABI object with values in an array, output bytecode
 function encodeMethod(method, values) {
-  var signature = method.name + '(' + utils.getKeys(method.inputs, 'type').join(',') + ')';
-  var signatureEncoded = '0x' + new Buffer(utils.keccak256(signature), 'hex').slice(0, 4).toString('hex');
   var paramsEncoded = encodeParams(utils.getKeys(method.inputs, 'type'), values).substring(2);
 
-  return '' + signatureEncoded + paramsEncoded;
+  return '' + encodeSignature(method) + paramsEncoded;
 }
@@ -125,2 +136,3 @@
   var signature = eventObject.name + '(' + utils.getKeys(eventObject.inputs, 'type').join(',') + ')';
+
   return '0x' + utils.keccak256(signature);
@@ -140,2 +152,3 @@ }
   var topicOffset = eventObject.anonymous ? 0 : 1;
+
   eventObject.inputs.filter(function (input) {
@@ -148,3 +161,5 @@ return input.indexed;
   });
+
   event._eventName = eventObject.name;
+
   return event;
@@ -192,3 +207,4 @@ }
   logDecoder: logDecoder,
-  eventSignature: eventSignature
+  eventSignature: eventSignature,
+  encodeSignature: encodeSignature
 };

package.json

 {
   "name": "ethjs-abi",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "Just the Ethereum encoding and decoding methods from the ethers-io-wallet.",
@@ -140,3 +140,3 @@ "main": "lib/index.js",
     "type": "git",
-    "url": "git://github.com/ethjs/ethers-abi"
+    "url": "git://github.com/ethjs/ethjs-abi"
   },
@@ -143,0 +143,0 @@ "license": "MIT",

README.md

@@ -83,2 +83,6 @@ ## ethjs-abi
 */
+
+const methodSig = abi.encodeSignature(SimpleStoreABI[2]);
+
+/* returns 0x10e8e9bc */
 ```
@@ -85,0 +89,0 @@

src/index.js

@@ -76,2 +76,3 @@ /* eslint-disable */
     var coder = getParamCoder(type);
+
     if (coder.dynamic) {
@@ -85,4 +86,10 @@ var dynamicOffset = uint256Coder.decode(data, offset);
     }
-    if (useNumberedParams) values[index] = result.value;
-    if (names[index]) { values[names[index]] = result.value; }
+
+    if (useNumberedParams) {
+      values[index] = result.value;
+    }
+
+    if (names[index]) {
+      values[names[index]] = result.value;
+    }
   });
@@ -92,9 +99,15 @@ return values;
 
+// create an encoded method signature from an ABI object
+function encodeSignature(method) {
+  const signature = `${method.name}(${utils.getKeys(method.inputs, 'type').join(',')})`;
+  const signatureEncoded = `0x${(new Buffer(utils.keccak256(signature), 'hex')).slice(0, 4).toString('hex')}`;
+
+  return signatureEncoded;
+}
+
 // encode method ABI object with values in an array, output bytecode
 function encodeMethod(method, values) {
-  const signature = `${method.name}(${utils.getKeys(method.inputs, 'type').join(',')})`;
-  const signatureEncoded = `0x${(new Buffer(utils.keccak256(signature), 'hex')).slice(0, 4).toString('hex')}`;
   const paramsEncoded = encodeParams(utils.getKeys(method.inputs, 'type'), values).substring(2);
 
-  return `${signatureEncoded}${paramsEncoded}`;
+  return `${encodeSignature(method)}${paramsEncoded}`;
 }
@@ -117,2 +130,3 @@
   const signature = `${eventObject.name}(${utils.getKeys(eventObject.inputs, 'type').join(',')})`;
+
   return `0x${utils.keccak256(signature)}`;
@@ -128,8 +142,11 @@ }
   const topicOffset = eventObject.anonymous ? 0 : 1;
+
   eventObject.inputs.filter((input) => input.indexed).map((input, i) => {
-    const topic = new Buffer(topics[i + topicOffset].slice(2),'hex');
+    const topic = new Buffer(topics[i + topicOffset].slice(2), 'hex');
     const coder = getParamCoder(input.type);
     event[input.name] = coder.decode(topic, 0).value;
-  })
-  event._eventName = eventObject.name
+  });
+
+  event._eventName = eventObject.name;
+
   return event;
@@ -168,3 +185,4 @@ }
   logDecoder,
-  eventSignature
+  eventSignature,
+  encodeSignature
 };

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

1929192

increased by0.05%

Lines of code

9693

increased by0.25%

Number of lines in readme file

179

increased by2.29%

No dependency changes