Merge pull request #34 from ava-labs/devv0.3.0-rc.5

Dev

1 files changed, 45 insertions, 4 deletions

diff --git a/core/vm/errors.go b/core/vm/errors.go
index 94f0ed8..9f3f335 100644
--- a/core/vm/errors.go
+++ b/core/vm/errors.go
@@ -16,16 +16,57 @@
 
 package vm
 
-import "errors"
+import (
+	"errors"
+	"fmt"
+)
 
-// List execution errors
+// List evm execution errors
 var (
+	// ErrInvalidSubroutineEntry means that a BEGINSUB was reached via iteration,
+	// as opposed to from a JUMPSUB instruction
+	ErrInvalidSubroutineEntry   = errors.New("invalid subroutine entry")
 	ErrOutOfGas                 = errors.New("out of gas")
 	ErrCodeStoreOutOfGas        = errors.New("contract creation code storage out of gas")
 	ErrDepth                    = errors.New("max call depth exceeded")
-	ErrTraceLimitReached        = errors.New("the number of logs reached the specified limit")
 	ErrInsufficientBalance      = errors.New("insufficient balance for transfer")
 	ErrIncompatibleAccount      = errors.New("incompatible account")
 	ErrContractAddressCollision = errors.New("contract address collision")
-	ErrNoCompatibleInterpreter  = errors.New("no compatible interpreter")
+	ErrExecutionReverted        = errors.New("execution reverted")
+	ErrMaxCodeSizeExceeded      = errors.New("max code size exceeded")
+	ErrInvalidJump              = errors.New("invalid jump destination")
+	ErrWriteProtection          = errors.New("write protection")
+	ErrReturnDataOutOfBounds    = errors.New("return data out of bounds")
+	ErrGasUintOverflow          = errors.New("gas uint64 overflow")
+	ErrInvalidRetsub            = errors.New("invalid retsub")
+	ErrReturnStackExceeded      = errors.New("return stack limit reached")
 )
+
+// ErrStackUnderflow wraps an evm error when the items on the stack less
+// than the minimal requirement.
+type ErrStackUnderflow struct {
+	stackLen int
+	required int
+}
+
+func (e *ErrStackUnderflow) Error() string {
+	return fmt.Sprintf("stack underflow (%d <=> %d)", e.stackLen, e.required)
+}
+
+// ErrStackOverflow wraps an evm error when the items on the stack exceeds
+// the maximum allowance.
+type ErrStackOverflow struct {
+	stackLen int
+	limit    int
+}
+
+func (e *ErrStackOverflow) Error() string {
+	return fmt.Sprintf("stack limit reached %d (%d)", e.stackLen, e.limit)
+}
+
+// ErrInvalidOpCode wraps an evm error when an invalid opcode is encountered.
+type ErrInvalidOpCode struct {
+	opcode OpCode
+}
+
+func (e *ErrInvalidOpCode) Error() string { return fmt.Sprintf("invalid opcode: %s", e.opcode) }