feat: recycle Signatures for faster Call init (#86)

banteg · Sep 27, 2023 · 426bd7e · 426bd7e
1 parent 9b90115
commit 426bd7e
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/multicall/call.py b/multicall/call.py
@@ -6,7 +6,7 @@
 from eth_utils import to_checksum_address
 from web3 import Web3
 
-from multicall import Signature
+from multicall import Signature, _get_signature
 from multicall.constants import Network, w3
 from multicall.exceptions import StateOverrideNotSupported
 from multicall.loggers import setup_logger
@@ -44,7 +44,7 @@ def __init__(
             self.function = function
             self.args = None
 
-        self.signature = Signature(self.function)
+        self.signature = _get_signature(self.function)
 
     def __repr__(self) -> str:
         return f'<Call {self.function} on {self.target[:8]}>'

diff --git a/multicall/signature.py b/multicall/signature.py
@@ -56,6 +56,9 @@ def parse_typestring(typestring: str) -> Optional[List[TypeStr]]:
     parts.append(part)
     return parts
 
+@lru_cache(maxsize=None)
+def _get_signature(signature: str) -> "Signature":
+    return Signature(signature)
 
 class Signature:
     __slots__ = "signature", "function", "input_types", "output_types"