fix: throw error if fn sig has whitespaces (#3509)

Fix #3055
AztecProtocol · Dec 1, 2023 · 7671063 · 7671063
1 parent f021041
commit 7671063
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/yarn-project/foundation/src/abi/function_selector.ts b/yarn-project/foundation/src/abi/function_selector.ts
@@ -88,6 +88,10 @@ export class FunctionSelector {
    * @returns Function selector.
    */
   static fromSignature(signature: string): FunctionSelector {
+    // throw if signature contains whitespace
+    if (/\s/.test(signature)) {
+      throw new Error('Function Signature cannot contain whitespace');
+    }
     return FunctionSelector.fromBuffer(keccak(Buffer.from(signature)).subarray(0, FunctionSelector.SIZE));
   }