v0.15.6

0.15.6

Features

• Checker: support for action invariants, see #801
• Checker: support for trace invariants, see #819

Improvements

• Add type information to overriding error, see #823

v0.15.5

0.15.5

Changes

• Docker: Use openjdk-16 for the runtime in the app image, see #807
• Documentation: Introduce TypeAlises operator convention, see #808
• tlair: TlaExLevelFinder and TlaDeclLevelFinder to compute TLA+ levels, see #811

Bug fixes

• Printer: replacing '$' and '!' with supported characters, see #574
• Printer: normalizing module names and writing TLA+ & JSON in all passes, see #785

v0.15.4

0.15.4

Documentation

• RFC006 on unit testing: see #741

Features

• apalache quits with a non-zero exit code on counterexample or error, see #249
• type checker: supporting one-line comments in types, see #773

Bug fixes

• Parser: supporting annotations in multiline comments, see #718
• Parser: supporting TLA+ identifiers in annotations, see #768
• Parser: better parser for annotations, see #757
• Parser: fixed two bugs in the declaration sorter, see #645 and #758
• Printer: fixed the output for EXCEPT, see #746
• Printer: fixed pretty printing of annotations, see #633
• Printer: extending the standard modules, see #137
• The command config --enable-stats=true creates $HOME/.tlaplus if needed, see #762
• IO: replaced calls to deprecated JsonReader/JsonWriter. out-parser.json is now compliant with the new format, see #778

Changes

• Builds: removed scoverage from maven, to improve build times
• Docs: updated ADR002 and HOWTO on type annotations to explain comments
• CLI: Users can set JVM args via the JVM_ARGS env var, see #790

v0.15.3

0.15.3

Features

• Checker: Support for CASE without OTHER, see #285

Bug fixes

• Type checker: Showing an error on missing annotations CONSTANTs or VARIABLEs, see #705
• Model checker: Fix an exception on Cardinality(a..b) > i, see #748

Changed

• IR: simplified SimpleFormalParam and OperFormalParam into OperParam, see #656
• IR: made consistent the names of IR operators (may break JSON compatibility), see #634

v0.15.2

0.15.2

Features

• Manual: added manual page on known issues
• IR: added Apalache!Gen to generate bounded data structures, see #622
• Checker: added support for Apalache!Gen, see #622
• Tool: added a new command test to quickly evaluate an action in isolation, see #622

v0.15.1

0.15.1

Features

• Manual: added a tutorial on the type checker Snowcat, see #689
• Language manual: add types for the standard operators, see #547
• Type checker: add support for type aliases,
  e.g., @typeAlias FOO = [a: Int, b: Int], see #704
• Manual: updated the HOWTO on type annotations with type aliases

v0.15.0

0.15.0

Features

• Model checker: receiving the types from with the type checker Snowcat, see #668 and #350
• Model checker and type checker: Snowcat is the only way to compute types now
• Type checker: the old Apalache type annotations are no longer supported, see #668
• Type checker: tagging all expressions with the reconstructed types, see #608
• Type checker: handling TLA+ labels like lab("a", "b") :: e, see #653
• Type checker: always treating <<...>> in UNCHANGED <<...>> as a tuple, see #660
• Type checker: handling the general case of EXCEPT, see #617
• Preprocessing: handling the general case of EXCEPT, see #647

Changed

• Preprocessing: massive refactoring of the passes to support types. This may have introduced unexpected bugs.
• Model checker: translation rules for records and functions have been modified, in order to support new types. Bugs to
  be expected.
• Intermediate representation: renamed BmcOper to ApalacheOper. Its operators have the prefix Apalache! now.

Removed

• Unused rewriting rules and FailPredT in the model checker, see #665
• Intermediate representation: removed non-standard operators subsetProper, supset, supseteq, see #615
• Intermediate representation: removed TlaArithOper.{sum,prod}, as they are not standard, see #580
• Intermediate representation: removed TlaOper.chooseIdiom

v0.11.0

0.11.0

Features

• Type checker: supporting TLC operators, see #601

Bug fixes

• Parser: propagating type annotations in INSTANCES, see #592 and #596

Removed

• Type checker: removed Typing.tla, AssumeType, and ##, see #518

v0.10.1

0.10.1

Features

• Support for FunAsSeq conversion in the type checker, see #223
• The parser outputs annotations, see #502

Documentation

• HOWTO on writing type annotations, see #571

Bug fixes

• Fixed name collisions on LOCAL operators and LOCAL INSTANCE, see #576
• Parser: a higher-order operator calling a higher-order operator, see #575
• Type checker: support for recursive functions of multiple arguments, see #582
• Type checker: support for tuple unpacking in recursive functions, see #583

v0.10.0

0.10.0

Features

• integration with Java-like annotations in comments, see #504
• support for Assume(...) in the type checker
• new command-line option for typecheck:
  • enable inference of polymorphic types: --infer-poly
• updates to ADR002 and the manual
• support for parallel assignments <<x', y'>> = <<1, 2>>, see #531
• always sorting declarations with topological sort (changes the order of the operator definitions), see #122

Bugfixes

• Boolean values are now supported in TLC config files, see #512
• Promoting Desugarer to run as the first preprocessing pass, see #531
• Proper error on invalid type annotations, the parser is strengthened with Scalacheck, see #332
• Fixed a parsing bug for strings that contain '-', see #539
• Typechecking quantifiers over tuples, see #482