pyethereum-extern.py

#!/usr/bin/env python
# @author Chris Calderon (calderon.christian760@gmail.com)

from ethereum import tester as t

code1 = '''data muhState[]                                                                                                                                                               
data muhLen[]

def get(i):
    return(load(self.muhState[i], items=self.muhLen[i]):arr)

def set(i, junk:arr):
    self.muhLen[i] = len(junk)
    save(self.muhState[i], junk, items=len(junk))
    return(self.muhLen[i])
'''

code2 = '''extern code1:[get:i:a, set:ia:i]                                                                                                                                              
code1 = {}
def doJunk(x):
    junk = array(x)
    i = 0
    while i < x:
        junk[i] = i*x
        i += 1
    code1.set(x, junk)
    return(code1.get(x, outsz=x):arr)
'''

code3 = '''extern code2:[doJunk:i:a]                                                                                                                                                     
code2 = {}
def foo(i):
    return(code2.doJunk(i*2, outsz=i*2):arr)
'''

s = t.state()
c1 = s.abi_contract(code1)
c2 = s.abi_contract(code2.format('0x' + c1.address.encode('hex')))
c3 = s.abi_contract(code3.format('0x' + c2.address.encode('hex')))

print c3.foo(2)