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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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Jennisys: allow assignment statements in interfaces (for now, these are syntactic sugar for ensures clauses)
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problems.
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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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rep axiom
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Dafny: Don't display "alloc" field in BVD
Chalice: Fixed error-message parsing error in VS mode
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Distinguish warnings/errors in Chalice.
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constructs.
Dafny VS2010 extension: link with Dafny and use it to parse and type check
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* Also copy CodeContractExtender in PrepareBoogieZip.bat
* Added some comments and a new program in Test/textbook
* Included refinement keywords in Chalice emacs mode
* Used assignment instead of spec statement in DuplicatesVideo.chalice
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* extended the cheap type inference to also consider "in" expressions and quantifiers
* added some refinement keywords to the Emacs mode for 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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Cleans and builds both projects, then executes the regressions if the build succeeded. If the build had failed, it will stop the script.
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positions were negative
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be easily extensible.
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* add sequence axiom updates from Dafny
* fix a bug in pretty printer for functions and predicates
* add a command line option for not checking termination; refactor options code to update syntax help string
* relax resolver to allow ghost state in assume statements (we don't know how to compile them in general anyways; assume false is still a special case and is compiled into assert false)
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some instructions on getting VS to track them down, along with an Excel sheet detailing the ones available.
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not need to mean that adding functionality will take longer than it had before, now that the handy Spec# non-null typesystem and verification keywords no longer are used. Here are some handy Code Snippets which can be implemented in Visual Studio in order to make adding to the Boogie codebase rapid.
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.dfy file; duh!)
Chalice tests: removed machine-specific path from test.bat (replacing the file reference with just 'scala', which in some ways is machine-specific too)
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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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of the "held" field in the heap
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Rustan Leino
stefanheule