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Diffstat (limited to 'accounts/abi/method.go')
| -rw-r--r-- | accounts/abi/method.go | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/accounts/abi/method.go b/accounts/abi/method.go deleted file mode 100644 index 9cceaba..0000000 --- a/accounts/abi/method.go +++ /dev/null @@ -1,90 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. - -package abi - -import ( - "fmt" - "strings" - - "github.com/ava-labs/go-ethereum/crypto" -) - -// Method represents a callable given a `Name` and whether the method is a constant. -// If the method is `Const` no transaction needs to be created for this -// particular Method call. It can easily be simulated using a local VM. -// For example a `Balance()` method only needs to retrieve something -// from the storage and therefore requires no Tx to be send to the -// network. A method such as `Transact` does require a Tx and thus will -// be flagged `false`. -// Input specifies the required input parameters for this gives method. -type Method struct { - // Name is the method name used for internal representation. It's derived from - // the raw name and a suffix will be added in the case of a function overload. - // - // e.g. - // There are two functions have same name: - // * foo(int,int) - // * foo(uint,uint) - // The method name of the first one will be resolved as foo while the second one - // will be resolved as foo0. - Name string - // RawName is the raw method name parsed from ABI. - RawName string - Const bool - Inputs Arguments - Outputs Arguments -} - -// Sig returns the methods string signature according to the ABI spec. -// -// Example -// -// function foo(uint32 a, int b) = "foo(uint32,int256)" -// -// Please note that "int" is substitute for its canonical representation "int256" -func (method Method) Sig() string { - types := make([]string, len(method.Inputs)) - for i, input := range method.Inputs { - types[i] = input.Type.String() - } - return fmt.Sprintf("%v(%v)", method.RawName, strings.Join(types, ",")) -} - -func (method Method) String() string { - inputs := make([]string, len(method.Inputs)) - for i, input := range method.Inputs { - inputs[i] = fmt.Sprintf("%v %v", input.Type, input.Name) - } - outputs := make([]string, len(method.Outputs)) - for i, output := range method.Outputs { - outputs[i] = output.Type.String() - if len(output.Name) > 0 { - outputs[i] += fmt.Sprintf(" %v", output.Name) - } - } - constant := "" - if method.Const { - constant = "constant " - } - return fmt.Sprintf("function %v(%v) %sreturns(%v)", method.RawName, strings.Join(inputs, ", "), constant, strings.Join(outputs, ", ")) -} - -// ID returns the canonical representation of the method's signature used by the -// abi definition to identify method names and types. -func (method Method) ID() []byte { - return crypto.Keccak256([]byte(method.Sig()))[:4] -} |