update some examples

examples/tokens/ERC20.vy

@@ -39,7 +39,7 @@ def __init__(_name: String[32], _symbol: String[32], _decimals: uint8, _supply:
     self.balanceOf[msg.sender] = init_supply
     self.totalSupply = init_supply
     self.minter = msg.sender
-    log IERC20.Transfer(empty(address), msg.sender, init_supply)
+    log IERC20.Transfer(sender=empty(address), receiver=msg.sender, value=init_supply)
 
 
 
@@ -54,7 +54,7 @@ def transfer(_to : address, _value : uint256) -> bool:
     #       so the following subtraction would revert on insufficient balance
     self.balanceOf[msg.sender] -= _value
     self.balanceOf[_to] += _value
-    log IERC20.Transfer(msg.sender, _to, _value)
+    log IERC20.Transfer(sender=msg.sender, receiver=_to, value=_value)
     return True
 
 
@@ -73,7 +73,7 @@ def transferFrom(_from : address, _to : address, _value : uint256) -> bool:
     # NOTE: vyper does not allow underflows
     #      so the following subtraction would revert on insufficient allowance
     self.allowance[_from][msg.sender] -= _value
-    log IERC20.Transfer(_from, _to, _value)
+    log IERC20.Transfer(sender=_from, receiver=_to, value=_value)
     return True
 
 
@@ -89,7 +89,7 @@ def approve(_spender : address, _value : uint256) -> bool:
     @param _value The amount of tokens to be spent.
     """
     self.allowance[msg.sender][_spender] = _value
-    log IERC20.Approval(msg.sender, _spender, _value)
+    log IERC20.Approval(owner=msg.sender, spender=_spender, value=_value)
     return True
 
 
@@ -106,7 +106,7 @@ def mint(_to: address, _value: uint256):
     assert _to != empty(address)
     self.totalSupply += _value
     self.balanceOf[_to] += _value
-    log IERC20.Transfer(empty(address), _to, _value)
+    log IERC20.Transfer(sender=empty(address), receiver=_to, value=_value)
 
 
 @internal
@@ -120,7 +120,7 @@ def _burn(_to: address, _value: uint256):
     assert _to != empty(address)
     self.totalSupply -= _value
     self.balanceOf[_to] -= _value
-    log IERC20.Transfer(_to, empty(address), _value)
+    log IERC20.Transfer(sender=_to, receiver=empty(address), value=_value)
 
 
 @external

examples/tokens/ERC4626.vy

@@ -56,14 +56,14 @@ def decimals() -> uint8:
 def transfer(receiver: address, amount: uint256) -> bool:
     self.balanceOf[msg.sender] -= amount
     self.balanceOf[receiver] += amount
-    log IERC20.Transfer(msg.sender, receiver, amount)
+    log IERC20.Transfer(sender=msg.sender, receiver=receiver, value=amount)
     return True
 
 
 @external
 def approve(spender: address, amount: uint256) -> bool:
     self.allowance[msg.sender][spender] = amount
-    log IERC20.Approval(msg.sender, spender, amount)
+    log IERC20.Approval(owner=msg.sender, spender=spender, value=amount)
     return True
 
 
@@ -72,7 +72,7 @@ def transferFrom(sender: address, receiver: address, amount: uint256) -> bool:
     self.allowance[sender][msg.sender] -= amount
     self.balanceOf[sender] -= amount
     self.balanceOf[receiver] += amount
-    log IERC20.Transfer(sender, receiver, amount)
+    log IERC20.Transfer(sender=sender, receiver=receiver, value=amount)
     return True
 
 
@@ -137,7 +137,7 @@ def deposit(assets: uint256, receiver: address=msg.sender) -> uint256:
 
     self.totalSupply += shares
     self.balanceOf[receiver] += shares
-    log IERC4626.Deposit(msg.sender, receiver, assets, shares)
+    log IERC4626.Deposit(sender=msg.sender, owner=receiver, assets=assets, shares=shares)
     return shares
 
 
@@ -170,7 +170,7 @@ def mint(shares: uint256, receiver: address=msg.sender) -> uint256:
 
     self.totalSupply += shares
     self.balanceOf[receiver] += shares
-    log IERC4626.Deposit(msg.sender, receiver, assets, shares)
+    log IERC4626.Deposit(sender=msg.sender, owner=receiver, assets=assets, shares=shares)
     return assets
 
 
@@ -207,7 +207,7 @@ def withdraw(assets: uint256, receiver: address=msg.sender, owner: address=msg.s
     self.balanceOf[owner] -= shares
 
     extcall self.asset.transfer(receiver, assets)
-    log IERC4626.Withdraw(msg.sender, receiver, owner, assets, shares)
+    log IERC4626.Withdraw(sender=msg.sender, receiver=receiver, owner=owner, assets=assets, shares=shares)
     return shares
 
 
@@ -233,7 +233,7 @@ def redeem(shares: uint256, receiver: address=msg.sender, owner: address=msg.sen
     self.balanceOf[owner] -= shares
 
     extcall self.asset.transfer(receiver, assets)
-    log IERC4626.Withdraw(msg.sender, receiver, owner, assets, shares)
+    log IERC4626.Withdraw(sender=msg.sender, receiver=receiver, owner=owner, assets=assets, shares=shares)
     return assets
 
 

examples/tokens/ERC721.vy

@@ -201,7 +201,7 @@ def _transferFrom(_from: address, _to: address, _tokenId: uint256, _sender: addr
     # Add NFT
     self._addTokenTo(_to, _tokenId)
     # Log the transfer
-    log IERC721.Transfer(_from, _to, _tokenId)
+    log IERC721.Transfer(sender=_from, receiver=_to, token_id=_tokenId)
 
 
 ### TRANSFER FUNCTIONS ###
@@ -275,7 +275,7 @@ def approve(_approved: address, _tokenId: uint256):
     assert (senderIsOwner or senderIsApprovedForAll)
     # Set the approval
     self.idToApprovals[_tokenId] = _approved
-    log IERC721.Approval(owner, _approved, _tokenId)
+    log IERC721.Approval(owner=owner, approved=_approved, token_id=_tokenId)
 
 
 @external
@@ -291,7 +291,7 @@ def setApprovalForAll(_operator: address, _approved: bool):
     # Throws if `_operator` is the `msg.sender`
     assert _operator != msg.sender
     self.ownerToOperators[msg.sender][_operator] = _approved
-    log IERC721.ApprovalForAll(msg.sender, _operator, _approved)
+    log IERC721.ApprovalForAll(owner=msg.sender, operator=_operator, approved=_approved)
 
 
 ### MINT & BURN FUNCTIONS ###
@@ -313,7 +313,7 @@ def mint(_to: address, _tokenId: uint256) -> bool:
     assert _to != empty(address)
     # Add NFT. Throws if `_tokenId` is owned by someone
     self._addTokenTo(_to, _tokenId)
-    log IERC721.Transfer(empty(address), _to, _tokenId)
+    log IERC721.Transfer(sender=empty(address), receiver=_to, token_id=_tokenId)
     return True
 
 
@@ -333,7 +333,7 @@ def burn(_tokenId: uint256):
     assert owner != empty(address)
     self._clearApproval(owner, _tokenId)
     self._removeTokenFrom(owner, _tokenId)
-    log IERC721.Transfer(owner, empty(address), _tokenId)
+    log IERC721.Transfer(sender=owner, receiver=empty(address), token_id=_tokenId)
 
 
 @view