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core/vm: Add support for EVMC capabilities

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This commit is contained in:
Paweł Bylica 2018-10-18 19:04:56 +02:00
parent 3e020f09fd
commit abe7715f1f
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GPG key ID: 7A0C037434FE77EF
1 changed files with 8 additions and 2 deletions
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10
core/vm/evmc.go
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@ -17,6 +17,7 @@
package vm
import (
"bytes"
"fmt"
"math/big"
"os"
@ -306,6 +307,11 @@ func (evm *EVMC) Run(contract *Contract, input []byte, readOnly bool) (ret []byt
return output, err
}
func (evm *EVMC) CanRun([]byte) bool {
return true
func (evm *EVMC) CanRun(code []byte) bool {
cap := evmc.CapabilityEVM1
if (bytes.Equal(code[0:4], []byte("\x00asm"))) {
cap = evmc.CapabilityEWASM
}
// FIXME: Optimize. Access capabilities once.
return evm.instance.HasCapability(cap)
}