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accounts/abi: Prevent recalculation of internal fields (#20895)

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* accounts/abi: prevent recalculation of ID, Sig and String

* accounts/abi: fixed unpacking of no values

* accounts/abi: multiple fixes to arguments

* accounts/abi: refactored methodName and eventName

This commit moves the complicated logic of how we assign method names
and event names if they already exist into their own functions for
better readability.

* accounts/abi: prevent recalculation of internal

In this commit, I changed the way we calculate the string
representations, sig representations and the id's of methods. Before
that these fields would be recalculated everytime someone called .Sig()
.String() or .ID() on a method or an event.

Additionally this commit fixes issue #20856 as we assign names to inputs
with no name (input with name "" becomes "arg0")

* accounts/abi: added unnamed event params test

* accounts/abi: fixed rebasing errors in method sig

* accounts/abi: fixed rebasing errors in method sig

* accounts/abi: addressed comments

* accounts/abi: added FunctionType enumeration

* accounts/abi/bind: added test for unnamed arguments

* accounts/abi: improved readability in NewMethod, nitpicks

* accounts/abi: method/eventName -> overloadedMethodName
This commit is contained in:
Marius van der Wijden
2020-04-20 09:01:04 +02:00
committed by GitHub
parent ca22d0761b
commit ac9c03f910
14 changed files with 279 additions and 239 deletions
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4
signer/fourbyte/abi.go
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@ -140,7 +140,7 @@ func parseCallData(calldata []byte, abidata string) (*decodedCallData, error) {
return nil, fmt.Errorf("signature %q matches, but arguments mismatch: %v", method.String(), err)
}
// Everything valid, assemble the call infos for the signer
decoded := decodedCallData{signature: method.Sig(), name: method.RawName}
decoded := decodedCallData{signature: method.Sig, name: method.RawName}
for i := 0; i < len(method.Inputs); i++ {
decoded.inputs = append(decoded.inputs, decodedArgument{
soltype: method.Inputs[i],
@ -158,7 +158,7 @@ func parseCallData(calldata []byte, abidata string) (*decodedCallData, error) {
if !bytes.Equal(encoded, argdata) {
was := common.Bytes2Hex(encoded)
exp := common.Bytes2Hex(argdata)
return nil, fmt.Errorf("WARNING: Supplied data is stuffed with extra data. \nWant %s\nHave %s\nfor method %v", exp, was, method.Sig())
return nil, fmt.Errorf("WARNING: Supplied data is stuffed with extra data. \nWant %s\nHave %s\nfor method %v", exp, was, method.Sig)
}
return &decoded, nil
}