@@ -90,23 +90,104 @@ const (
9090 // RESERVED_31 ExitCode = 31
9191)
9292
93- // FvmError fvm error include error code and error message
94- type FvmError struct {
95- code ExitCode
93+ // ErrorNumber When a syscall fails, it returns an `ErrorNumber` to indicate why
94+ type ErrorNumber uint32
95+
96+ // Error return error message of ErrorNumber
97+ func (e ErrorNumber ) Error () string {
98+ return enToString (uint32 (e ))
99+ }
100+
101+ func (e ErrorNumber ) String () string {
102+ return enToString (uint32 (e ))
103+ }
104+
105+ // EnToString return string message of ErrorNumber
106+ func enToString (code uint32 ) string {
107+ switch code {
108+ case 1 :
109+ return "illegal argument"
110+ case 2 :
111+ return "illegal operation"
112+ case 3 :
113+ return "limit exceeded"
114+ case 4 :
115+ return "filecoin assertion failed"
116+ case 5 :
117+ return "insufficient funds"
118+ case 6 :
119+ return "resource not found"
120+ case 7 :
121+ return "invalid ipld block handle"
122+ case 8 :
123+ return "illegal cid specification"
124+ case 9 :
125+ return "illegal ipld codec"
126+ case 10 :
127+ return "serialization error"
128+ case 11 :
129+ return "operation forbidden"
130+ case 12 :
131+ return "buffer too small"
132+ }
133+ return "other error"
134+ }
135+
136+ // Is check whether error is ErrorNumber
137+ func (e ErrorNumber ) Is (code error ) bool {
138+ return e == code
139+ }
140+
141+ // nolint
142+ const (
143+ // A syscall parameters was invalid.
144+ IllegalArgument ErrorNumber = 1
145+ // The actor is not in the correct state to perform the requested operation.
146+ IllegalOperation ErrorNumber = 2
147+ // This syscall would exceed some system limit (memory, lookback, call depth, etc.).
148+ LimitExceeded ErrorNumber = 3
149+ // A system-level assertion has failed.
150+ //
151+ // # Note
152+ //
153+ // Non-system actors should never receive this error number. A system-level assertion will
154+ // cause the entire message to fail.
155+ AssertionFailed ErrorNumber = 4
156+ // There were insufficient funds to complete the requested operation.
157+ InsufficientFunds ErrorNumber = 5
158+ // A resource was not found.
159+ NotFound ErrorNumber = 6
160+ // The specified IPLD block handle was invalid.
161+ InvalidHandle ErrorNumber = 7
162+ // The requested CID shape (multihash codec, multihash length) isn't supported.
163+ IllegalCid ErrorNumber = 8
164+ // The requested IPLD codec isn't supported.
165+ IllegalCodec ErrorNumber = 9
166+ // The IPLD block did not match the specified IPLD codec.
167+ Serialization ErrorNumber = 10
168+ // The operation is forbidden.
169+ Forbidden ErrorNumber = 11
170+ // The passed buffer is too small.
171+ BufferTooSmall ErrorNumber = 12
172+ )
173+
174+ // SysCallError Fvm error number include error code and error message
175+ type SysCallError struct {
176+ code ErrorNumber
96177 message string
97178}
98179
99- // NewFvmError new fvm error from error code and message
100- func NewFvmError (code ExitCode , msg string ) FvmError {
101- return FvmError {code , msg }
180+ // NewSysCallError new fvm error number from error code and message
181+ func NewSysCallError (code ErrorNumber , msg string ) SysCallError {
182+ return SysCallError {code , msg }
102183}
103184
104- // Error return error message for fvm error
105- func (fvmError FvmError ) Error () string {
106- return fmt .Sprintf ("%s %d " , fvmError .message , fvmError .code )
185+ // Error return error message for fvm error number
186+ func (e SysCallError ) Error () string {
187+ return fmt .Sprintf ("%s (%d)%s " , e .message , e . code , e .code )
107188}
108189
109190// Unwrap return inner error code
110- func (fvmError FvmError ) Unwrap () error {
111- return fvmError .code
191+ func (e SysCallError ) Unwrap () error {
192+ return e .code
112193}
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