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@cardillan cardillan released this 16 Oct 12:35
· 5 commits to main since this release
v2.3.0
9616b24

Fixed

  • Fixed wrong compilation order of appended files (#155).
  • Fixed inadequate reporting of syntax error (#156).
  • Fixed Wrong handling of comparison operators by Data Flow Optimization (#158).
  • Fixed wrong parsing of formattable string literals.
  • Fixed inadequate handling of unsupported expressions embedded in formattable string literals.

Added

  • Breaking: Added support for syntax variants (strict and relaxed) to Mindcode. The Strict syntax is the default now; to be able to compile existing Mindcode the Relaxed syntax needs to be activated using the #relaxed; directive.
  • Added support for the Mlog Watcher Mindustry mod integration to both the web app and the command-line tool. This mod allows the compiled code to be automatically injected into a selected processor in a running Mindustry game.
  • Added variable name validation: when inserting mlog into Mindustry processor, variables named configure are silently renamed to config. For this reason, using configure as a name for any variable in Mindcode causes an error.
  • Added navigable compiler error messages to the web app. Clicking on a message with known position in the source code selects the corresponding position in the editor.
  • Added support for outputting the error messages by the command line tool in a format which allows IDEs to parse the position and navigate to the error location in the source code.
  • Added a variety of new optimizations to the Expression Optimization.
    • op instruction: many new optimizations when one of the two operands is known.
    • lookup instruction: when possible, the instruction is replaced by a set instruction setting the item, liquid, building or unit directly to the target variable, allowing further optimizations to take place. Effective on aggresive optimization level.
  • Added warning messages when deprecated features are detected in the source code.
  • Added support for creating constants from formattable string literals.
  • Added full support for the sync() function: a variable passed as an argument to this function becomes automatically volatile.

Schemacode

  • Added support for block comments, delimited by /* and */. These comments can span multiple lines.

Experimental features

  • Added support for Mindustry Logic from upcoming version 8. The features supported correspond to the current implementation in Mindustry and might therefore still change. All new features are described in a separate documentation.
  • Added a system library, automatically included when the language target is 8A or higher.
  • Added support to the If Expression Optimization to propagate values in if expressions not just into the set instruction, but into any instruction taking an input parameter. Available on the experimental optimization level.

Changed

  • Breaking: Changed the implementation of the printf() function under language target ML8A. Instead of compile-time formatting of passed parameters, the function uses print and format instructions for run-time formatting.
  • Changed the definition of the && and || operators: they are guaranteed to always evaluate to either 0 or 1.
  • Changed the min() and max() functions to accept more than just two arguments.
  • Changed the Temporary Variables Elimination optimization to replace unused output variables in instructions with 0, to ensure no unnecessary variable will be created by the instruction, reducing clutter. Closes #154.
  • Changed the If Expression Optimization to support value propagation for all instructions having one output parameter (based on instruction metadata), instead of just a subset of specifically handled instructions.
  • Changed - yet again - the way the Single Step Elimination optimization removes the last instruction which is a jump to the beginning of the program, so that it doesn't leave behind any jump that might have targeted the removed instruction. Such a jump was harmless, but unnecessary and looked strange in the mlog.
  • Changed the text buffer handling in the processor emulator to recognize identical outputs produced by consecutive printflush operations and avoid creating duplicate outputs.
  • When a compiler-generated variable is evaluated as uninitialized (this situation indicates a bug in some of the optimizers), an internal error is thrown.

Deprecated

  • Deprecated the original Mindcode syntax.
  • Deprecated the usage of parentheses around the list of values in list iteration loops.
  • Deprecated escaped double quotes in string literals.
  • Deprecated kebab-case identifiers (note that built-in mlog variables, such as @blast-compound, will continue to be supported).
  • Deprecated the printf() function in language target ML7A and earlier.
  • Deprecated the configure property. This property from Mindustry Logic 6 was replaced by config in Mindustry Logic 7.

Miscellaneous

  • Added parallel execution of unit tests.
  • Renamed the command-line tool module from compiler to toolapp, and the Mindcode compiler module from mindcode to compiler.
  • Renamed the files in bin directory from mcc/mcc.bat to mindcode/mindcode.bat.
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