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CHANGELOG.md

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Changelog

All the changes for Alta's primary (and currently only) backend, the C transpiler, will be kept in this file.

This project follows semantic versioning.

[Unreleased]

  • Many, MANY changes that are TBD (to-be-documented)

Fixed

  • Output class typedef definitions before the actual structure definitions (to allow them to store pointers to themselves)
  • Make sure to copy conditional expression outputs (by casting)
  • Silence some compiler warnings for generated code about incompatible pointer casts for:
    • Generator scope destruction when calling _Alta_object_destroy
    • Casting _Alta_self to _Alta_basic_class in generator initializers
    • Casting from _Alta_basic_class to the appropriate class type in generator executions
    • Using _Alta_object_destroy when deleting a variable
  • Properly dereference reference types generated by to casts
  • Properly reference reference types when passing them into operator methods
  • Dereference the iterator instance used for iterative ranged-for loops if necessary
  • Properly dereference references types when doing special fetches
  • Insert default return values that abort (in case the user provides no return value) for operator method definitions
  • Register symbols for from and to casts and operator methods

[0.8.0] - 2018-12-20

Added

  • void type support added
  • New CTranspiler.vararg attribute for parameters
    • This attribute lets Talta know that the annotated parameter is a C-style vararg parameter and that it should format arguments for this parameter accordingly
    • This is used, for example, in the declaration for printf:
      • declare function printf(string: ptr byte, @CTranspiler.vararg data: any...): int
      • This tells Alta that instead of passing arguments to printf like this:
        • printf("some %d string", (any[]){ 3 })
        • Which, by the way, is invalid C code because of the any type
      • ...it should pass them like this:
        • printf("some %d string", 3)

Changed

  • Attributes are now executed at detail time
    • Note: this change was made in order to comply with the corresponding change in AltaCore
    • CTranspiler.include has been updated accordingly, and the new attribute (CTranspiler.vararg) also implements this behavior

Updated

Additional Release Notes

  • We now have a policy of changelog modularization, and this is in effect for the various subprojects
    • In other words, refer to the changelogs of updated dependencies for additional changes
  • CI integration has been added for automated builds (and automated testing once tests are added)

[0.7.1] - 2018-12-03

Changed

  • Build artificats are now put into their own folders in the build directory: bin for executables and lib for libraries

Updated

  • AltaCore v0.9.0
  • Ceetah v0.4.1

[0.7.0] - 2018-12-01

Added

  • General attribute support
  • CTranspiler attribute domain
    • BTW, [AttributeString] = const ptr const byte, which is a string literal
    • Currently, it contains the following attributes:
      • include(header: [AttributeString]) = Instructs the C transpiler to include the specified header in the current module's header output

Updated

  • AltaCore v0.8.0

[0.6.0] - 2018-11-28

Added

  • String literal support

Updated

  • AltaCore v0.7.0

[0.5.0] - 2018-11-27

Added

  • Namespace support

Updated

  • AltaCore v0.6.0

[0.4.0] - 2018-11-22

Added

  • Package versions are now included as part of mangled module names
  • Hoisted types support
    • Currently only necessary for function-pointer types
  • Function calls can now be transpiled!

Updated

  • AltaCore v0.5.1

[0.3.0] - 2018-11-18

Added

  • Function-pointer type support

Updated

  • AltaCore v0.4.0
  • Ceetah v0.3.0

[0.2.2] - 2018-11-18

Fixed

  • Mangle function parameter names
    • Previously, they were left unmangled

Updated

  • AltaCore v0.3.1

[0.2.1] - 2018-11-18

Updated

  • AltaCore v0.3.0

[0.2.0] - 2018-11-13

Added

  • Boolean transpilation
    • Both boolean literals and the boolean type
  • Binary operations (+, -, *, /)
  • Module importation!
    • Full support for cherry-pick imports, theoretical support for alias imports

Updated

  • AltaCore v0.2.0
  • Ceetah v0.2.0

[0.1.0] - 2018-11-11

Added

  • Assignment expressions are here!
  • We now use shared_ptrs in some places because Ceetah and AltaCore have switched to using them instead of raw pointers
    • We didn't completely switch because we can use raw pointers in places where we don't allocate new objects or keep pointers to objects (although we could fully switch if we wanted to)

Updated

  • Ceetah v0.1.0
  • AltaCore v0.1.0

[0.0.0] - 2018-11-08

Added

  • Function and variable name mangling
    • Mangled function names include parameter types so that function overloading can be easily implemented in the future without much fuss on the backend
  • return support
  • Function definition support
    • Automatic function declaration in headers
  • Alta type to C type translation
    • Alta's byte is basically equivalent to C's char, and int is the same for both
    • const and ptr translation, as well
    • refs are translted to pointers just like ptr
  • Variable definition and retrieval support
  • Theoretical accessor support
    • Theoretical because accessors aren't a thing in Alta yet, so we have no way of testing it
    • Theoretically supported, though, because it should work as-is when accessors are added to Alta
  • Integer literal translation