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path: root/rpc/api/args.go
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package api

import (
    "encoding/json"
    "github.com/ethereum/go-ethereum/rpc/shared"
)

type CompileArgs struct {
    Source string
}

func (args *CompileArgs) UnmarshalJSON(b []byte) (err error) {
    var obj []interface{}
    if err := json.Unmarshal(b, &obj); err != nil {
        return shared.NewDecodeParamError(err.Error())
    }

    if len(obj) < 1 {
        return shared.NewInsufficientParamsError(len(obj), 1)
    }
    argstr, ok := obj[0].(string)
    if !ok {
        return shared.NewInvalidTypeError("arg0", "is not a string")
    }
    args.Source = argstr

    return nil
}

type FilterStringArgs struct {
    Word string
}

func (args *FilterStringArgs) UnmarshalJSON(b []byte) (err error) {
    var obj []interface{}
    if err := json.Unmarshal(b, &obj); err != nil {
        return shared.NewDecodeParamError(err.Error())
    }

    if len(obj) < 1 {
        return shared.NewInsufficientParamsError(len(obj), 1)
    }

    var argstr string
    argstr, ok := obj[0].(string)
    if !ok {
        return shared.NewInvalidTypeError("filter", "not a string")
    }
    switch argstr {
    case "latest", "pending":
        break
    default:
        return shared.NewValidationError("Word", "Must be `latest` or `pending`")
    }
    args.Word = argstr
    return nil
}