Match Solidity identifier regex (#1657).

ethers-io · Jun 10, 2021 · a6e128f · a6e128f
1 parent be20e28
commit a6e128f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/packages/abi/src.ts/fragments.ts b/packages/abi/src.ts/fragments.ts
@@ -1029,7 +1029,8 @@ function verifyType(type: string): string {
     return type;
 }
 
-const regexIdentifier = new RegExp("^[A-Za-z_][A-Za-z0-9_]*$");
+// See: https://github.com/ethereum/solidity/blob/1f8f1a3db93a548d0555e3e14cfc55a10e25b60e/docs/grammar/SolidityLexer.g4#L234
+const regexIdentifier = new RegExp("^[a-zA-Z$_][a-zA-Z0-9$_]*$");
 function verifyIdentifier(value: string): string {
     if (!value || !value.match(regexIdentifier)) {
         logger.throwArgumentError(`invalid identifier "${ value }"`, "value", value);