forked from TrueCloudLab/neoneo-go
238c590ddb
PublishTX only had one of these flags, but newer contracts (created via the interop function) can have more and these flags are aggregated into one field that uses PropertyState enumeration (it's used to publish contract, so supposedly it's also a nice choice for contract state storage).
93 lines
1.9 KiB
Go
93 lines
1.9 KiB
Go
package smartcontract
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import "github.com/CityOfZion/neo-go/pkg/util"
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// ParamType represent the Type of the contract parameter
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type ParamType byte
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// A list of supported smart contract parameter types.
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const (
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SignatureType ParamType = iota
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BoolType
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IntegerType
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Hash160Type
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Hash256Type
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ByteArrayType
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PublicKeyType
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StringType
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ArrayType
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)
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// PropertyState represents contract properties (flags).
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type PropertyState byte
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// List of supported properties.
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const (
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NoProperties = 0
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HasStorage PropertyState = 1 << iota
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HasDynamicInvoke
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IsPayable
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)
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// Parameter represents a smart contract parameter.
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type Parameter struct {
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// Type of the parameter
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Type ParamType `json:"type"`
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// The actual value of the parameter.
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Value interface{} `json:"value"`
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}
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func (pt ParamType) String() string {
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switch pt {
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case SignatureType:
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return "Signature"
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case BoolType:
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return "Boolean"
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case IntegerType:
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return "Integer"
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case Hash160Type:
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return "Hash160"
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case Hash256Type:
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return "Hash256"
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case ByteArrayType:
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return "ByteArray"
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case PublicKeyType:
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return "PublicKey"
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case StringType:
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return "String"
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case ArrayType:
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return "Array"
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default:
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return ""
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}
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}
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// MarshalJSON implements the json.Marshaler interface.
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func (pt ParamType) MarshalJSON() ([]byte, error) {
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return []byte(`"` + pt.String() + `"`), nil
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}
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// NewParameter returns a Parameter with proper initialized Value
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// of the given ParamType.
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func NewParameter(t ParamType) Parameter {
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return Parameter{
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Type: t,
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Value: nil,
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}
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}
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// ContextItem represents a transaction context item.
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type ContextItem struct {
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Script util.Uint160
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Parameters []Parameter
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Signatures []Signature
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}
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// Signature represents a transaction signature.
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type Signature struct {
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Data []byte
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PublicKey []byte
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}
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// ParameterContext holds the parameter context.
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type ParameterContext struct{}
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