1. 15 Jun, 2018 1 commit
  2. 17 Oct, 2017 1 commit
  3. 24 Aug, 2017 1 commit
  4. 22 Jun, 2017 1 commit
    • Andrei Paskevich's avatar
      WhyML: check type invariants · 15fc3d65
      Andrei Paskevich authored
      Type declarations for records (incuding the private records) can
      now be followed by a "witness": a set of values for the record
      fields that must satisfy the type invariant (if any). The fields
      must be initialized with pure terminating program expressions.
      The current syntax, proposed by Martin, is
      
          type t 'a = { f: ty1; g: ty2 }
            invariant { J[f,g] }
            by { f = e1; g = e2 }
      
      The generated proof obligation is the VC for
      
          let g = e2 in let f = e1 in assert { J[f,g] }
      
      In absence of an explicit witness, an existential proof obligation
      "exists f,g. J[f,g]" is produced.
      15fc3d65
  5. 01 Apr, 2016 1 commit
  6. 18 Mar, 2016 1 commit
  7. 16 Mar, 2016 1 commit
  8. 06 Jul, 2015 1 commit
  9. 14 Feb, 2014 1 commit
    • Andrei Paskevich's avatar
      WhyML: change the syntax of "abstract" · 4fd8b24d
      Andrei Paskevich authored
      The old syntax:   abstract expr [spec]...
      
      The semicolon binds more loosely than "abstract" and
      the specification clauses are optional, so that
      "abstract e1; e2" is the same as "(abstract e1); e2"
      and "abstract e1; e2; ensures {...}" is a syntax error.
      
      The new syntax:   abstract [spec]... expr end
      
      This allows to put sequences of expressions under "abstract"
      without ambiguity and moves the specification clauses to the
      beginning. In other words, "abstract" becomes a "begin" with
      a specification attached. The spec-at-the-top is consistent
      with the syntax of functions and the whole seems to be more
      natural for the intented use of "abstract" (a logical cut).
      4fd8b24d
  10. 22 Jan, 2014 1 commit
  11. 18 Dec, 2013 1 commit
  12. 23 Mar, 2013 1 commit
  13. 21 Mar, 2013 1 commit
  14. 19 Mar, 2013 2 commits