How to scan Annotations used in contracts written using COFOJA?
I am working on a project, where I have to write a contract for a method usi开发者_JAVA百科ng COFOJA , and I have to generate code for method from the contracts using heuristics.
1) How will I be able to scan Annotations used in COFOJA like @ requires, @ensures etc? 2) IF I generate Abstract syntax tree, whether the AST will contain annotations / contract language also?
for ex: consider following input to my project
class Test{
@requires( { a> 0})
@ensures( {a==0 implies fact(a)=1 , and a>0 implies fact(a) = fact(a-1)*a } )
public int fact (int a)
{
}
}
// Output of first version of code: (Its a rough estimate of code,)
class Test1{
public int fact (int a)
{
if (a==0)
return 1;
if(a >0)
return a*fact(a-1);
if(a<0) throw new AssertionException("Precondition failed/violated a<0 ");
}
} // end of class
to set eclipse: http://webcourse.cs.technion.ac.il/236700/Spring2013/ho/WCFiles/Contracts%20for%20Java.pdf
and for cofoja: https://fsteeg.wordpress.com/2011/02/07/setting-up-contracts-for-java-in-eclipse/
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