106 lines
2.1 KiB
Go
106 lines
2.1 KiB
Go
package smartcontract
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import (
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"github.com/CityOfZion/neo-go/pkg/io"
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"github.com/CityOfZion/neo-go/pkg/util"
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)
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// ParamType represents 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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HasStorage PropertyState = 1 << iota
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HasDynamicInvoke
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IsPayable
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NoProperties = 0
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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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// EncodeBinary implements io.Serializable interface.
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func (pt ParamType) EncodeBinary(w *io.BinWriter) {
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w.WriteLE(pt)
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}
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// DecodeBinary implements io.Serializable interface.
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func (pt *ParamType) DecodeBinary(r *io.BinReader) {
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r.ReadLE(pt)
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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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