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core, eth: unship EIP 2315

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This commit is contained in:
Péter Szilágyi
2021-03-02 23:40:57 +02:00
parent 19d7a37abb
commit 7834e4a278
14 changed files with 48 additions and 205 deletions
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13
core/vm/contract.go
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@ -96,19 +96,6 @@ func (c *Contract) validJumpdest(dest *uint256.Int) bool {
return c.isCode(udest)
}
func (c *Contract) validJumpSubdest(udest uint64) bool {
// PC cannot go beyond len(code) and certainly can't be bigger than 63 bits.
// Don't bother checking for BEGINSUB in that case.
if int64(udest) < 0 || udest >= uint64(len(c.Code)) {
return false
}
// Only BEGINSUBs allowed for destinations
if OpCode(c.Code[udest]) != BEGINSUB {
return false
}
return c.isCode(udest)
}
// isCode returns true if the provided PC location is an actual opcode, as
// opposed to a data-segment following a PUSHN operation.
func (c *Contract) isCode(udest uint64) bool {