Exemplos de Contract.ghost_value em Python

Exemplo n.º 1

Arquivo: test_ghost.py Projeto: Grain/saw-script

def pre_counter(contract: Contract, counter: GhostVariable):
    n = contract.fresh_var(i32, "n")
    contract.precondition_f("{n} < 128")
    contract.ghost_value(counter, n)
    return n

Exemplo n.º 2

def pre_counter(contract: Contract, counter: GhostVariable):
    n = contract.fresh_var(i32, "n")
    contract.precondition(n < cryptol("128"))
    contract.ghost_value(counter, n)
    return n

Exemplo n.º 3

Arquivo: test_ghost.py Projeto: Grain/saw-script

def post_counter(contract: Contract, counter: GhostVariable, n: CryptolTerm):
    contract.ghost_value(counter, cry_f("{n} + 1"))

Exemplo n.º 4

def post_counter(contract: Contract, counter: GhostVariable, n: CryptolTerm):
    contract.ghost_value(counter, cryptol("(+)")(n, cryptol("1")))