Merge pull request ethereumjs#282 from seesemichaelj/ignore-eip-170

Add option to ignore EIP 170 for debugging purposes

Author: holgerd77

README.md

@@ -60,6 +60,7 @@ Creates a new VM object
   - `state` - A merkle-patricia-tree instance for the state tree (ignored if `stateManager` is passed)
   - `blockchain` - A blockchain object for storing/retrieving blocks (ignored if `stateManager` is passed)
   - `activatePrecompiles` - Create entries in the state tree for the precompiled contracts
+  - `allowUnlimitedContractSize` - Allows unlimited contract sizes while debugging. By setting this to `true`, the check for contract size limit of 2KB (see [EIP-170](https://git.io/vxZkK)) is bypassed. (default: `false`; **ONLY** set to `true` during debugging).
 
 ### `VM` methods
 

lib/index.js

@@ -32,6 +32,7 @@ VM.deps = {
  * @param {Trie} [opts.state] A merkle-patricia-tree instance for the state tree (ignored if stateManager is passed)
  * @param {Blockchain} [opts.blockchain] A blockchain object for storing/retrieving blocks (ignored if stateManager is passed)
  * @param {Boolean} [opts.activatePrecompiles] Create entries in the state tree for the precompiled contracts
+ * @param {Boolean} [opts.allowUnlimitedContractSize] Allows unlimited contract sizes while debugging (default: false; ONLY use during debugging)
  */
 function VM (opts = {}) {
   this.opts = opts
@@ -45,6 +46,8 @@ function VM (opts = {}) {
     })
   }
 
+  this.allowUnlimitedContractSize = opts.allowUnlimitedContractSize === undefined ? false : opts.allowUnlimitedContractSize
+
   // temporary
   // this is here for a gradual transition to StateManager
   this.blockchain = this.stateManager.blockchain

lib/runCall.js

@@ -164,7 +164,7 @@ module.exports = function (opts, cb) {
           totalGas = totalGas.add(returnFee)
         }
         // if not enough gas
-        if (totalGas.lte(gasLimit) && results.return.length <= 24576) {
+        if (totalGas.lte(gasLimit) && (self.allowUnlimitedContractSize || results.return.length <= 24576)) {
           results.gasUsed = totalGas
         } else {
           results.return = Buffer.alloc(0)