| Commit message (Collapse) | Author | Age |
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-> "prefix lemma")
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around the bound variables optional.
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renamed "ghost module" to "abstract module", adding a keyword "abstract"
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* Added "comethod" declarations and support for writing manual co-inductive proofs (but currently blindly assume comethod postconditions to, in positive positions, only have copredicates and codatatype equalities--other cases still need to be dealt with)
Code restructuring:
* New set of Boogie procedure stubs generated for each other
* Start of improvements around TrSplitExpr
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and refining), no compilation or verification
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keyword is parsed but ignored.
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parallel syntax, other minor fixes
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limited)
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handle generic datatypes correctly)
Dafny: fixed compiler bug in inductive datatypes (missing type parameters in emitted code)
Dafny: added "codatatype" declaration (syntax only for now)
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arbitrary type (like a global type parameter). In the future, a refined module may allow such types to be instantiated.
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statement)
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special syntactic form to being just an attribute
Dafny: added "parallel" statement (so far, only parsing and resolving)
Dafny: allow types on bound variables in "match" expressions/statements (there's never any incentive to list them explicitly in the program text, but it nevertheless seemed silly to forbid them)
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Dafny: Additional induction test cases
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* Big change: Add type and allocatedness information everywhere in the Boogie translation. This not only fixes some potential soundness problems (see Test/dafny1/TypeAntecedents.dfy), but it also gives more information about the program. On the downside, it also requires discharging more antecedents in order to use some axioms. Another downside is that overall performance has gone down (however, this may be just an indirect consequence of the change, as it was in one investigated case).
* Increase the applicability of function axioms (extending the coarse-grain function/module height mechanism used as an antecedent of function axioms). (Internally, this uses the new canCall mechanism.)
* Extend language with "allocated( Expr )" expressions, which for any type of expression "Expr" says that "Expr" is allocated and has the expected type.
* More details error messages about ill-defined expressions (internally, by using CheckWellformedness instead of "assert IsTotal")
* Add axioms about idempotence of set union and intersection
* The compiler does not support (the experimental feature) coupling invariants, so generate error if the compiler ever gets one
* In the implementation, combine common behavior of MatchCaseStmt and MatchCaseExpr into a superclass MatchCase
* Fixed error in translation of while(*)
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Distinguish warnings/errors in Chalice.
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* Added full support for multi-dimensional arrays (except for one issue that still needs to be added in compilation)
* Changed syntax of array length from |a| to a.Length (for one-dimensional arrays). The syntax for either dimensions is, for example, b.Length0 and b.Length1 for 2-dimensional arrays.
* Internally, this meant adding support for built-in classes and readonly fields
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with string literals
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}'. Think of the new brackets as atomicity brackets (see PetersonsAlgorithm.chalice)
Chalice: Added Peterson's algorithm to test suite (safety properties only)
VS 2010 integration: Updated Chalice and Dafny modes, added keyword highlighting for a new Boogie mode
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install binaries" link from the boogie.codeplex.com home page.
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