normalizeSignature

Name: viem-go
Author: viem-go

Normalizes a function or event signature by removing parameter names and unnecessary whitespace

normalizeSignature

Normalizes a function or event signature by removing parameter names, indexed keywords, and unnecessary whitespace, keeping only the types.

Import

import "github.com/ChefBingbong/viem-go/utils/hash"

Usage

import "github.com/ChefBingbong/viem-go/utils/hash"

// Normalize function signature
sig, _ := hash.NormalizeSignature("function transfer(address to, uint256 amount)")
// "transfer(address,uint256)"

// Normalize event signature
sig, _ = hash.NormalizeSignature("event Transfer(address indexed from, address indexed to, uint256 amount)")
// "Transfer(address,address,uint256)"

// Normalize without function/event keyword
sig, _ = hash.NormalizeSignature("ownerOf(uint256 tokenId)")
// "ownerOf(uint256)"

Returns

Type: (string, error)

The normalized signature string with parameter names and whitespace removed.

Parameters

signature (required)

Type: string

The function or event signature to normalize.

sig, _ := hash.NormalizeSignature("function transfer(address to, uint256 amount)")
// "transfer(address,uint256)"

sig, _ = hash.NormalizeSignature("event Transfer(address indexed from, address indexed to, uint256 amount)")
// "Transfer(address,address,uint256)"

Notes

Removes the function and event keywords
Removes parameter names (keeps only types)
Removes indexed keywords from event parameters
Removes unnecessary whitespace
Used internally by ToFunctionSelector, ToEventSelector, and other hash functions