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// 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 (
"encoding/json"
"fmt"
)
// Argument holds the name of the argument and the corresponding type.
// Types are used when packing and testing arguments.
type Argument struct {
Name string
Type Type
Indexed bool // indexed is only used by events
}
// UnmarshalJSON implements json.Unmarshaler interface
func (a *Argument) UnmarshalJSON(data []byte) error {
var extarg struct {
Name string
Type string
Indexed bool
}
err := json.Unmarshal(data, &extarg)
if err != nil {
return fmt.Errorf("argument json err: %v", err)
}
a.Type, err = NewType(extarg.Type)
if err != nil {
return err
}
a.Name = extarg.Name
a.Indexed = extarg.Indexed
return nil
}
func countNonIndexedArguments(args []Argument) int {
out := 0
for i := range args {
if !args[i].Indexed {
out++
}
}
return out
}
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