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Changelog

v0.6.0 (2024-01-26)

Highlights

This release improves the federated execution capability, makes the handling of target properties more modular and robust, and provides various bugfixes and small enhancements.

🚀 New Features

  • Usage of high-resolution counter device on Zephyr boards. Update to v3.4.0 #2007 (@erlingrj)
  • Bracket list expression for initialization without escaping #2003 (@oowekyala)
  • [C] Self struct made available to initializers of state variables, parameters #2014 (@OmerMajNition)
  • New --no-source-mapping switch to disable line directives #2092 (@lhstrh)
  • Ability to specify rti image for dockerized federated programs #2144 (@lhstrh)

✨ Enhancements

  • Show reaction names in diagrams #2030 (@cmnrd)
  • Generate default values for the user-configurable CMake flags #2036 (@erlingrj)
  • Fix to generate launch script for TS target and print informational message #2090 (@hokeun)
  • Use more explicit include guards for Arduino #2102 (@petervdonovan)
  • Better placement of line directives #2101 (@petervdonovan)
  • String literal allowed as property name #2136 (@oowekyala)
  • Various bugfixes and cleanups in the support for federated programs #2140 (@edwardalee)

🔧 Fixes

  • Handling of unconnected outputs to avoid segmentation fault #2011 (@edwardalee)
  • Fixed timeout and shutdown in C++ #2012 (@cmnrd)
  • Stabilized LSP diagram genenation and added default expansion option #2018 (@cmnrd)
  • Avoid null pointer exception in diagrams with bodyless reactions #2020 (@cmnrd)
  • Removed "Reaction level" diagram synthesis option #2019 (@cmnrd)
  • Fixed error reporting in the verifier #2031 (@cmnrd)
  • Fixed trimming of the recorded test output #2040 (@cmnrd)
  • Fix problems with assignment serialization in diagrams #2038 (@a-sr)
  • Fixed bug in the C++ reaction dependency analysis #2050 (@cmnrd)
  • Handling of unknown width for multiports #2057 (@edwardalee)
  • Fixed race-condition in _lf_replace_template_token #2082 (@erlingrj)
  • Output path specified in JSON used correctly #2088 (@lhstrh)
  • Fix bug in C decentralized execution with small after delays #2032 (@petervdonovan)
  • Use more explicit include guards for Arduino #2102 (@petervdonovan)
  • Fixed mistake in code-generated reaction preamble #2105 (@erlingrj)
  • Fix undetected scheduler and workers properties #2110 (@lsk567)
  • Fix bug: set length on incoming token #2122 (@edwardalee)
  • Type check error turned into warning #2111 (@lhstrh)
  • Fix minimum spacing of actions and reference to freed event #2128 (@edwardalee)
  • Bugfix for TypeScript in dev mode #2130 (@lhstrh)
  • Parallel compilation disabled to avoid triggering deadlock in concurrent invocations of CMake #2145 (@edwardalee)
  • Python docker parent image fixed at version 3.10 #2151 (@petervdonovan)
  • Fix for cycle detection issue #2112 (@lhstrh)
  • Fixed hashCode() implementation in TimeValue class #2157 (@lhstrh)
  • Various bugfixes and cleanups in the support for federated programs #2140 (@edwardalee)
  • Removal of image-specific commands in case base image is specified #2158 (@lhstrh)
  • Fix some zephyr build issues #2160 (@erlingrj)
  • Fix for #2087 #2147 (@a-sr)
  • Fixed parameter forwarding for non-trivial types in C++ #2164 (@cmnrd)
  • Fixed generation of preambles for unused imports #2165 (@cmnrd)

🚧 Maintenance and Refactoring

  • Apply spotbugs plugin #2005 (@cmnrd)
  • Cleaned up test code to fix all test related spotbugs warnings #2006 (@cmnrd)
  • Remove deprecated C schedulers++ #2037 (@erlingrj)
  • Removal of ulog from reactor-ts, code generator updated to allow this change #2052 (@axmmisaka)
  • Refactoring of target properties and their validation #2008 (@lhstrh)
  • The 'threading' CLI option/build param/target property changed to 'single threaded' #1817 (@patilatharva)
  • Minimal changes to merge reactor-c enclaves #2095 (@erlingrj)
  • Fix file structure for future networks option #2070 (@Jakio815)
  • Fix minimum spacing of actions and reference to freed event #2128 (@edwardalee)

📖 Documentation

  • Updated .github/workflows/README.md #2076 (@Jakio815)

🧪 Tests

  • Fixed error reporting in the verifier #2031 (@cmnrd)
  • Fixed trimming of the recorded test output #2040 (@cmnrd)
  • Adjustment to test output to show progress #2137 (@lhstrh)
  • Time limits imposed on integration tests #2141 (@lhstrh)

⬆️ Updated Dependencies

  • Bumped Gradle and Gradle plugin versions #2024 (@lhstrh)

Submodule lf-lang/reactor-c

🚀 New Features

  • Scheduling enclaves #242 (@erlingrj)

✨ Enhancements

  • Use real-time sockets in federated execution #274 (@erlingrj)
  • Progress towards Python 3.11 support #255 (@cmnrd)
  • Use env command rather than /usr/bin/python3 #297 (@edwardalee)
  • Priority queue refactoring #306 (@edwardalee)
  • Detect ZDC in RTI and issue PTAG only for nodes in ZDC #311 (@edwardalee)
  • Add an option for specifying the time interval of showing messages to the tracing visualizer #320 (@byeong-gil)
  • Various bugfixes and cleanups in the support for federated programs #323 (@edwardalee)

🔧 Fixes

  • Removal of the "waiting for tag" field #266 (@petervdonovan)
  • Mixed microsteps and time #269 (@petervdonovan)
  • Fedsd fix self_id #271 (@ChadliaJerad)
  • Guard against unconnected outputs #275 (@edwardalee)
  • Fixed argparse for fedsd #273 (@erlingrj)
  • Fixed GEDF_NP and removal of deprecated schedulers #282 (@erlingrj)
  • Fixed overflow bug affecting 32-bit Linux platforms #288 (@erlingrj)
  • Zephyr: default thread stack size updated to 2KB #299 (@erlingrj)
  • Bugfix in C decentralized execution with small after delays #280 (@petervdonovan)
  • Added return for non-void return function for arduino support #309 (@chacalnoir)
  • Handle messages arriving during initial STA wait #316 (@edwardalee)
  • Fix minimum spacing of actions and reference to freed event #318 (@edwardalee)
  • Fix LF_ASSERT #324 (@erlingrj)
  • Various bugfixes and cleanups in the support for federated programs #323 (@edwardalee)
  • Fix compiler warning in adaptive scheduler #335 (@petervdonovan)
  • Fix for silly bug in pretty printing time #336 (@edwardalee)

🚧 Maintenance and Refactoring

  • Do not link with thread library when we are compiling for Zephyr #272 (@erlingrj)
  • Minor cleanups #279 (@edwardalee)
  • Fixed GEDF_NP and removal of deprecated schedulers #282 (@erlingrj)
  • Zephyr timing implementation refactored into two separate files #294 (@erlingrj)
  • Clean up warnings and associated docs #296 (@edwardalee)
  • Use env command rather than /usr/bin/python3 #297 (@edwardalee)
  • Mentions of "unthreaded" replaced with "single-threaded" #250 (@patilatharva)
  • Priority queue refactoring #306 (@edwardalee)
  • Make new directory under federated named network #292 (@Jakio815)
  • Update lingua-franca-ref.txt to point to master #315 (@edwardalee)
  • Fix minimum spacing of actions and reference to freed event #318 (@edwardalee)
  • LF_ASSERT: Cast to void to avoid unused warnings #326 (@erlingrj)

Submodule lf-lang/reactor-cpp

✨ Enhancements

  • Timeout implemented so that shutdown is invoked only once #53 (@cmnrd)

🔧 Fixes

  • Timeout implemented so that shutdown is invoked only once #53 (@cmnrd)
  • Build the dependency graph only after establishing all connections #54 (@cmnrd)

Submodule lf-lang/reactor-rs

  • No Changes

v0.5.1 (2023-09-12)

Highlights

This release addresses several issues in the C code generator and fixes Docker support for federations.

✨ Enhancements

  • Avoid squeezing reaction, method, or preamble bodies onto a single line #1984 (@petervdonovan)

🔧 Fixes

  • Fix for setting federates' bank index #1989 (@petervdonovan)
  • Default hostname for RTI in dockerized federation changed from "localhost" to "rti" #1993 (@byeong-gil)
  • Fix for unconnected multiport and bank reactor bug #1953 (@OmerMajNition)

🚧 Maintenance and Refactoring

  • Gradlew not longer used to run dev version of lf cli tools #1988 (@axmmisaka)
  • More robust dev scripts and removed util directory #1995 (@cmnrd)

🧪 Tests

  • Tests for lf_set_array and persistent inputs #1987 (@edwardalee)
  • Minor fixes for C++ tests #1979 (@revol-xut)

Submodule lf-lang/reactor-c

  • No Changes

Submodule lf-lang/reactor-cpp

  • No Changes

Submodule lf-lang/reactor-rs

  • No Changes

v0.5.0 (2023-08-30)

Highlights

This release introduces new syntax for initializers, includes a renovation of the C backend to let it generate more modular code, and brings new features like a watchdog construct, support for generics in C, support for SMT-solver-based formal verification using UCLID-5, and bare-iron support for the Raspberry Pi Pico platform.

🚀 New Features

✨ Enhancements

🔧 Fixes

🚧 Maintenance and Refactoring

📖 Documentation

🧪 Tests

⬆️ Updated Dependencies

Submodule lf-lang/reactor-c

🚀 New Features

✨ Enhancements

🔧 Fixes

🚧 Maintenance and Refactoring

📖 Documentation

Submodule lf-lang/reactor-cpp

🚀 New Features

  • Enclave connections and enclave coordination #44 (@cmnrd)
  • Simple mechanism for collecting statistics during execution #47 (@cmnrd)
  • Port graph #51 (@revol-xut)

✨ Enhancements

  • Keep track of input actions in the environment #42 (@cmnrd)
  • Factored event queue into its own class and fixed race condition between multiple starting enclaves #45 (@cmnrd)

🔧 Fixes

  • Fix race condition in time barriers #49 (@cmnrd)
  • Fix validate method and fix incorrect phase checks #50 (@cmnrd)

Submodule lf-lang/reactor-rs

  • Use Cargo workspaces to directly include vecmap dependency #40 (@jhaye)
  • Fixes for current Clippy version #45 (@jhaye)
  • chore: Bump dependencies to avoid vulnerability in smallvec #44 (@oowekyala)
  • Fix use of multiport as reaction source #43 (@oowekyala)

v0.4.0 (2023-03-01)

Highlights

This release includes substantial changes under the hood and brings a lot of new features and enhancements, ranging from performance improvements to the support of new platforms like Zephyr, Arduino, and MBED in the C target. In the C++ target, it is now also straightforward to interact with ROS2 packages using the ros2-dependencies target property.

🚀 New Features

✨ Enhancements

  • Added advance-message-interval option and more federated tests for TypeScript #1293 (hokeun)
  • Improved layout for error message node #1324 (a-sr)
  • C++ target performance optimizations #1330 (cmnrd)
  • Improved error messaging for mode validation #1349 (a-sr)
  • New target property for specifying additional ROS dependencies #1355 (cmnrd)
  • Support for passthrough connections in the C++ target #1361 (cmnrd)
  • Support scheduling physical actions synchronously #1367 (oowekyala)
  • Automatic code formatting using Spotless #1374 (petervdonovan)
  • Optimized access to sparse multiports in the C++ target #1312 (revol-xut)
  • Augmented support for Arduino #1384 (arengarajan99)
  • New lff autoformatter for Lingua Franca files #1422 (cmnrd)
  • Protection from code modifying the multiport container in C++ #1420 (revol-xut)
  • Empty bracket pairs properly tokenized #1439 (oowekyala)
  • Switched to Gradle for language and diagram server build #1469 (a-sr)
  • Better multiport support for Rust #1406 (oowekyala)
  • Reduction of disk usage in the Rust target #1476 (oowekyala)
  • Native implementation of timeout in C++ #1507 (cmnrd)
  • Less verbose CMake output via suppressed install messages #1517 (cmnrd)
  • Preservation of time units when formatting LF code #1518 (cmnrd)
  • Check for update Rust runtime #1546 (oowekyala)
  • Bugfixes and improvements in token-based memory management in C #1548 (edwardalee)
  • Use of delayed and physical connections as provided by the C++ runtime #1583 (cmnrd)

🔧 Fixes

🚧 Maintenance and Refactoring

  • Use HTTPS for Rust reactor runtime submodule #1308 (jhaye)
  • Switch from Rust nightly to Rust stable #1218 (jhaye)
  • Tests in TypeScript for requesting stop in federated execution #1302 (hokeun)
  • More portable way to suppress unused variable warnings #1317 (edwardalee)
  • Reduced verbosity in reported output #1323 (petervdonovan)
  • Reference reactor-ts as module #1322 (lhstrh)
  • Removal of unnecessary build dependency to address security exceptions #1365 (cmnrd)
  • Simplification of grammar that encodes mutations with the same productions as reactions #1318 (Wonseo-C)
  • Removal of "No CMake" build option #1299 (petervdonovan)
  • Usage of a published version of reactor-ts #1426 (petervdonovan)
  • Differentiation between multi-threaded and single-threaded preprocessor directives in C #1411 (erlingrj)
  • TypeScript generator cleanups #1457 (oowekyala)
  • Clean up AttributeUtils #1470 (cmnrd)
  • Infrastructure for AST transformations and factored out delay transformation #1508 (cmnrd)
  • Cleanup initializer grammar #1441 (oowekyala)
  • Serialization of compile definitions #1529 (erlingrj)
  • Fix and reformat javadoc @author tag #1486 (axmmisaka)
  • Restructuring of mechanism for compiling federated programs #1221 (lhstrh)
  • Removal of .c file includes in federated programs #1601 (arengarajan99)

🧪 Tests

⬆️ Updated Dependencies

Submodule lf-lang/reactor-c

🚀 New Features

✨ Enhancements

🔧 Fixes

  • Fixed memory leaks in RTI #113 (erlingrj)
  • Fix of flaky timedwait on Windows #115 (cmnrd)
  • Token payload freed with after delay #124 (edwardalee)
  • Consistent way of handling entry and exit of critical section #136 (erlingrj)
  • Scheduling preprocessing fix #154 (erlingrj)
  • Fix problem with threaded Zephyr and overflow handling in QEMU emulation #159 (erlingrj)
  • Intended tag printed instead of last-seen tag in debug message #160 (byeong-gil)
  • Zephyr timing fix #166 (erlingrj)
  • Fixed compilation of RTI without -DAUTH and CI job for building the RTI #171 (cmnrd)

🚧 Maintenance and Refactoring

Submodule lf-lang/reactor-cpp

🚀 New Features

  • Support passthrough connections #29 (cmnrd)
  • Enable multiple environments and schedulers to run at the same time #37 (cmnrd)
  • Native runtime implementation of delayed and physical connections #38 (revol-xut)

✨ Enhancements

  • Optimization of value pointers for trivially copyable types #22 (cmnrd)
  • Avoid locking when scheduling actions #23 (cmnrd)
  • Optimized Multiports #24 (revol-xut)
  • Protect multiports from accidental modification by restricting Multiport and introducing new class ModifyableMultiport #33 (revol-xut)
  • Native timeout implementation, sync_shutdown made threadsafe, and is_present added for timers #36 (cmnrd)
  • Optimization: use std::string_view in validation functions #41 (cmnrd)
  • Native runtime implementation of delayed and physical connections #38 (revol-xut)

🔧 Fixes

  • Fixed compilation with tracing support #25 (cmnrd)
  • Fix race condtions related to the scheduling of physical actions #31 (cmnrd)
  • Fix compilation on 32-Bit machines #40 (cmnrd)

Submodule lf-lang/reactor-rs

🚀 New Features

  • Support for synchronous scheduling of physical actions #30 (oowekyala)

✨ Enhancements

  • Replace level assignment algo #31 (oowekyala)
  • Switched from Rust Nightly to Rust Stable #32 (jhaye)
  • Use of stable toolchain for lints in CI #35 (oowekyala)
  • Simplified access to ports and port banks #29 (oowekyala)
  • Use of external verified VecMap crate #39 (jhaye)
  • Removal of scoped threads for physical actions #34 (oowekyala)

🔧 Fixes

v0.3.0 (2022-07-22)

Highlights

This release adds broader support for methods (C and Python), syntax for annotations similar those in Java, an adaptive scheduler in the C runtime, and a new platform target property to furnish support for specialized execution platforms.

Full Changelog

🚀 New Features

✨ Enhancements

  • New handling of startup/shutdown/reset reactions in modes #1169 (a-sr)
  • Diagram layout improvements #1206 (a-sr)
  • History transitions are now indicated using the history keyword #1247 (a-sr)
  • Compile warnings are fixed and clang-tidy is ran when compiling C++ tests in CI #1259 (cmnrd)
  • New design for reset symbols in diagrams #1241 (a-sr)
  • Improvements of mode diagram layout #1282 (a-sr)
  • [cpp] Additional checks to determine whether a subdirectory should be included in compilation #1283 (cmnrd)
  • [cpp] CLI parser errors are caught and a print help message is printed #1288 (cmnrd)
  • [ts] Handling of physical action-triggered outputs in federated execution (previously handled by TAN - Time Advance Notice) #1275 (hokeun)

🔧 Fixes

  • TAN messages no longer used and in-transit messages recorded in the RTI #1074 (Soroosh129)
  • [c] A deadline of 0 is no longer interpreted as an absent deadline but one that can never be met #1217 (billy-bao)
  • Fix for deadlock in federated execution #1189 (Soroosh129)
  • [c] Removal of STP violation inheritance mechanism #1251 (Soroosh129)
  • Fix for properly handling paths with spaces in lfc launch script #1257 (cmnrd)
  • Fix that repairs the ability to execute commands with Bash in case command is not found on path #1265 (petervdonovan)
  • Fix to not include downstream reactions in highlighted cycles #1270 (edwardalee)
  • Correction of misplacement of self loops in diagrams #1274 (a-sr)
  • Fix that silences spurious error messages from Pylint #1280 (petervdonovan)
  • Patch that avoids NullPointerException in CompileActionHandler #1267 (lhstrh)
  • Do not minimize the shadow jar #1285 (cmnrd)
  • Fix for ASTUtils.width() returnning -1 even when the width can be inferred from connections #1287 (hokeun)
  • Fix banks of modal reactors #1279 (a-sr)
  • Ensure that reactions consistently trigger banks #1289 (edwardalee)
  • Cpp: fix triggering of reactions in multiple nested reactors #1286 (cmnrd)
  • Fix to ensure the ordering of reactions relative to modes is correct #1303 (a-sr)

🚧 Maintenance and Refactoring

⬆️ Updated Dependencies

Submodule lf-lang/reactor-c

✨ Enhancements

  • New handling of startup/shutdown/reset reactions in modes #79 (a-sr)
  • STP violations now result in error messages #82 (edwardalee)
  • Removal of TAN messages and new capability to record in-transit messages in the RTI #61 (Soroosh129)

🔧 Fixes

  • Patch to ensure that deadlines with zero delay are never met #86 (billy-bao)

Submodule lf-lang/reactor-cpp

✨ Enhancements

  • Nix tooling expanded with cachegrind, callgrind, and memtest #13 (revol-xut)
  • Relocation of unistd.h and execinfo.h includes to void namespace pollution #14 (erlingrj)
  • Fixes that addresses warnings reported by clang-tidy #15 (cmnrd)
  • Optimized port communication for scalar types #17 (cmnrd)

🔧 Fixes

  • Fix to allow ports to have both triggers and further bindings #16 (cmnrd)

Submodule lf-lang/reactor-rs

  • No Changes

Submodule lf-lang/reactor-ts

🚀 New Features

🧪 Tests

  • Increased coverage of unit tests in bank.ts, multiport.ts and port.ts #100 (goekberk)

v0.2.1 (2022-06-01)

Highlights:

This release includes bug fixes related to IDE tooling and federated execution. Various code cleanups and refactoring efforts have also been included in this release.

Full Changelog

Implemented enhancements:

  • Introduce a thread-safe logging API for Rust #1138
  • Turn warning for absence of main reactor into an informational message #1113
  • Adjusted build to fall back to python command if python3 is not available #1197 (Soroosh129)
  • Add more suitable default template for LF projects to Epoch #1180 (lhstrh)
  • Add support for the STP handler to the Python target #1176 (Soroosh129)
  • Add federated docker file generation for TS target #1165 (housengw)
  • Smarter default number of workers in C runtime #1139 (erlingrj)
  • Add support for interleaved operator to Rust target #1133 (jhaye)
  • Change TS generator to support serialization of communication in federated execution #1125 (CloverCho)

Fixed bugs:

  • Default template for "New LF Project" is federated program #1172
  • Stop time is not handled correctly with decentralized coordination #1166
  • Federated feedback with delay falsely detects cycles #1086
  • Repair LSP tests #1199 (petervdonovan)
  • Fix segfault for internally disconnected output ports #1195 (Soroosh129)
  • Restore the ability to put the RTI on a remote machine #1164 (edwardalee)
  • Fix segfault in python target argument handling #1161 (housengw)
  • Fixed a few calls to deprecated functions that were missed #1131 (edwardalee)

Closed issues:

  • GitHub Actions unable to install Java due to problems with Cloudflare CDN #1196
  • Maven build failing on MacOS #1153
  • "Required target resource not found" in Epoch 0.2.0 #1142

Merged pull requests:

v0.2.0 (2022-05-01)

Highlights:

This release brings the minimum version requirement of Java to 17, which is a long-term support version that is also broadly supported by newer platforms (e.g., Apple silicon). Other changes included in this release are: a refactoring of the user-facing API of reactor-c, various bugfixes and enhancements of Rust, TypeScript, and C target, and minor improvements of the diagram synthesis.

Full Changelog

Implemented enhancements:

  • The Rust target should support the 'workers' and 'threading' target properties #991
  • Optionally suppress the red No Main Reactor icon #1089 (edwardalee)

Fixed bugs:

  • Segfault when calling _lf_check_deadline #1123
  • In generated Rust code, logical actions in main reactors aren't mutable, making them not schedulable #1110
  • Add categories explicitly to the diagram synthesis options #1119 (soerendomroes)

Closed issues:

  • User facing utility functions such as info_print should also have lf_ prefix #1124
  • Tracking the renaming of APIs in C and Python target #1108
  • Remove logic for handling examples from testing framework #1079

Merged pull requests:

  • Prefix print functions with lf_ #1127 (housengw)
  • Fix set executing_reaction in self struct #1126 (housengw)
  • Remove references to deprecated APIs in the code generator #1122 (housengw)
  • Update Python target APIs to match the C target updates #1116 (housengw)
  • Update SET, schedule and tag APIs in the C target #1103 (housengw)
  • Remove redundant struct and related code in python target #1102 (housengw)
  • Allow bank_index in initializers #1101 (edwardalee)
  • Added support for state variables in diagrams #1100 (a-sr)
  • Support inline code arguments on main reactor for Rust target #1099 (jhaye)
  • Add support for threading compiler flag to Rust target #1098 (jhaye)
  • Update SET, schedule and tag APIs in the C target #1097 (housengw)
  • Java configuration bumped to version 17 #1094 (lhstrh)
  • Add validation tests for ports in main or federated reactor #1091 (housengw)
  • Update and add federated execution tests for TypeScript target #1062 (hokeun)

v0.1.0 (2022-04-11)

Highlights:

This is the first stable release of Lingua Franca. Aside from numerous bugfixes, a number of new features have been introduced since v0.1.0-beta, including: generation of ROS2 nodes directly from LF code (C++); improved error handling; support for multiports and banks (TypeScript); modular support for runtime schedulers (C); and modal reactors (C and Python). Finally, a major refactoring has been performed in which all remaining Xtend code was ported to Java.

Full Changelog

Implemented enhancements:

  • Add a -v / --version flag to lfc #927
  • Produce informative message when lfc is run on non-LF files #919
  • Make Docker generation compatible with the files target property #887
  • Preconfigure Epoch with example projects #374
  • In banks of reactors, make bank_index a proper parameter #343
  • Align the meaning of the threads target property across targets #290
  • Improve Stability of Positioning Edges connected to Reactions in Diagrams #1040 (a-sr)
  • Improve layout options #1015 (soerendomroes)
  • Support modal models in Python #1009 (edwardalee)
  • Replace the 'threads' target property with the 'workers' and 'threading' properties #993 (cmnrd)
  • Docker files property #987 (housengw)
  • Enable generation of ROS2 nodes directly from C++ code #984 (cmnrd)
  • Added --version flag to lfcand improved error messages #979 (cmnrd)
  • Improve warning message for unrecognized target parameters #964 (cmnrd)
  • Add bank & multiport support in TypeScript code generator with > 30 multiport tests. #942 (hokeun)
  • Added support for modular scheduler in C runtime #743 (Soroosh129)
  • Added support for Modal Models #501 (a-sr)

Fixed bugs:

  • Tracing does not get enabled in all files of reactor-c #1067
  • C benchmark PingPong is broken #1058
  • Command line argument -w does not work. #1056
  • Maven build is broken #1033
  • FilterBank benchmark in C++ has cycles #1031
  • EclipseErrorReporter reports errors in the wrong file #1030
  • Dependency cycle detection does not seem to work #1024
  • Spurious warnings in Epoch #1016
  • Error reporting in Epoch is broken #994
  • Epoch fails to highlight errors on codegen #966
  • Some cargo errors are not reported in LF #936
  • Files without main don't compile if they have imports #913
  • Invalid time literal causees IllegalArgumentException #908
  • Reactor extending itself causes StackOverflowError #907
  • Having multiple unnamed main reactors causes nullPointerException #905
  • Catch errors from the TS type checker in the examples category #405
  • Fixed an issue with bank_index #1087 (Soroosh129)
  • Fix bug where tracing does not get fully enabled #1068 (hokeun)
  • Fix errors in tracing util. #1043 (hokeun)
  • Properly recognize network message actions in TypeScript generator #1042 (hokeun)
  • [error reporting] Correct bugs reported on Epoch #1038 (petervdonovan)
  • Fix handling of ganged connections #1037 (edwardalee)
  • Broaden a pylint ignore. #1029 (petervdonovan)
  • Fixed causality loop detection bug #1026 (edwardalee)
  • Suppress line-too-long warnings in the Python target. #1018 (petervdonovan)
  • [C] do not generate code without main reactor #1000 (housengw)
  • Check for null reactor to avoid NPE #998 (edwardalee)
  • Fix eclipse error reporting #995 (cmnrd)
  • Epoch error reporting #967 (edwardalee)
  • Detect and flag and as error multiple mains #965 (edwardalee)
  • Inheritance cleanups #962 (edwardalee)
  • Fixes #768 #952 (housengw)
  • Report raw, unparsed error streams as a last resort. #941 (petervdonovan)

Closed issues:

  • Epoch fails on valid file #1027
  • List modal reactor tests in own test category #1020
  • Merge JavaAstUtils and ASTUtils #1003
  • Kotlin classes do not get build by buildLfc task (unless the clean task is also run) #930
  • Navigate to imported reactors in diagrams #889
  • Port Xtend classes to Java #838
  • Use the same implementation of deque accross all C benchmarks #765
  • Use the BenchmarkRunner reactor in all C benchmarks #764
  • Build both Epoch with maven and lfc with gradle in our CI workflow #575
  • Declutter repo and move into separate Github Organization #347
  • C syntax for referencing parameters and state variables #82

Merged pull requests:

v0.1.0-beta (02-01-2022)

Compiler

  • Reduced size of generated C code when using banks and multiports (#759 and #875)
  • Significantly reduced memory footprint and compilation time (#759 and #875)
  • Ported the C++ code generator to Kotlin (#345)
  • Ported the TypeScript code generator to Kotlin (#431, #486)
  • Added enforcement of LF scoping rules in generated C++ code (#375)
  • Fixed support for generic reactors in the C++ target (#467)
  • Dropped the rebuild feature of lfc (#530)
  • Fixed after for various complex connection patterns (#541, #553, #593)
  • Improved error reporting in the standalone compiler (#543)
  • The C target now uses CMake to compile generated code (#402)

Dependencies

  • eclipse.core.resources 3.15.0 -> 3.16.0 (#829)
  • eclipse.core.runtime 3.22.0 -> 3.24.0 (#829)
  • exec-maven-plugin 1.6.0 -> 3.0.0 (#829)
  • gradle 6.5 -> 7.0 (#829)
  • junit 4.12 -> 4.13.2 (#829)
  • junit-jupiter-* 5.7.2 -> 5.8.2 (#829)
  • junit-platform-* 1.7.2 -> 1.8.2 (#829)
  • kotlin 1.4.10 -> 1.6.10 (#866)
  • lsp4j 0.10.0 -> 0.12.0 (#829)
  • shadowJar 6.0.0 -> 7.1.2 (#829)
  • xtext-gradle-plugin -> 2.0.8 -> 3.0.0 (#829)

Federation support

  • Added support for federated Python programs
  • Added support for federated TypeScript programs (#538, #596, #646, reactor-ts#71)
  • Enhanced support for Docker containers (including for federated programs) (#700, #750, #754)
  • Added built-in support for ROS 2 serialization (#449)
  • RTI is now a standalone application (#395)

Language

  • Introduced syntax for method definitions (currently only supported by the C++ target) (#382)
  • Added support for giving widths of banks and multiports as runtime parameters or target code in the C++ target (#387, #420)
  • Added syntax for interleaved connections (#416)
  • Created a new Rust target (#488, #628)
  • Added the CCpp target, which accepts C++ code but is supported by the C runtime (#513)

Platform support

  • LF programs with the TypeScript target can now be compiled on Windows (#850).
  • Added Windows support for the C and Python targets (#532)

Runtime

  • Implemented the Savina benchmark suite in the C, C++, and Rust target (modulo those that require mutations)
  • Improved performance of the C++ runtime considerably

Python

  • Multiports and banks are now iterable in the Python target (#713)
  • Fixed an issue where top-level custom Python classes were being serialized incorrectly
  • bank_index (useful for banks of reactors) is now a proper parameter that can be passed down the reactor hierarchy via parameter assignment (#424).

Tool support

VS Code extension

  • Generated code is now validated when an LF file is saved for all targets except C (#828). Generated C code is only validated when it is fully compiled.

Epoch

  • Added compile button as an alternative to the Eclipse automatic build feature (#848)
  • Added terminal window support (#509)
  • Updated icons

Utilities

  • Added tools for exporting dependency information from the C++ runtime (#788)
  • Added tracing support for the Python target (#568)
  • Added a script for conveniently running benchmarks (#243)
  • Added version bump script (#829)

v0.1.0-alpha (06-04-2021)

This is a preliminary release of the Lingua Franca Compiler (lfc), a command-line compiler that translates Lingua Franca programs into target language programs, and an Eclipse-based IDE (integrated development environment) that provides a sophisticated editor as well as a code generator. This release supports four target languages: C, C++, Python, and Typescript. See documentation. Of the four target languages, C is the most complete. It supports all documented language features including an experimental implementation of federated execution.

The IDE is suitable for the following platforms:

  • Linux (lingua-franca-rca-0.1.0-alpha-linux.gtk.x86_64.tar.gz)
  • MacOS (lingua-franca-rca-0.1.0-alpha-macosx.cocoa.x86_64.tar.gz)
    • IMPORTANT NOTE: MacOS will report that lflang.app is broken because it was not signed. To execute it, please run xattr -cr lflang.app first on the command line. Eventually, we will provide a signed download.
  • Windows (lingua-franca-rca-0.1.0-alpha-win32.x86_64.zip)

The lfc command line application is suitable for:

  • Linux, MacOS (lfc-0.1.0-alpha.tar.gz)
  • Windows (lfc-0.1.0-alpha.zip)

System Requirements

IDE Features

  • code generation
  • diagram synthesis
  • error forwarding from target compiler
  • validation

Language Features (see language specification)

  • imports
  • banks
  • multiports
  • list-valued parameters
  • target properties
  • time type

Targets