History of FunC

Initial version

Initial version was done by Telegram and active development was ceased after May 2020. We refer to version of May 2020 as "initial".

Version 0.1.0

Released in 05.2022 update.

In this version were added:

• Constants
• Extended string literals
• Semver pragmas
• Includes

Fixed:

• Fixed rarely manifested bugs in Asm.fif.

Version 0.2.0

Released in 08.2022 update.

In this version were added:

• Unbalanced if/else branches (when some branches return and some are not)

Fixed:

• FunC incorrectly handles while(false) loops #377
• FunC incorreclty generate code for ifelse branches #374
• FunC incorrectly return from condition in inline functions #370
• Asm.fif: splitting of large function bodies incorrectly interfere with inlines #375

Version 0.3.0

Released in 10.2022 update.

In this version were added:

• Multiline asms
• Duplication of identical definition for constants and asms became allowed
• Bitwise operations for constants for constants became allowed

Version 0.4.0

Released in 01.2023 update.

In this version were added:

• try/catch statements
• throw_arg functions
• allowed in-place modification and mass-assignments of global variables: a~inc() and (a, b) = (3, 5), where a is global

Fixed:

• forbidden ambiguous modification of local variables after it's usage in the same expression: var x = (ds, ds~load_uint(32), ds~load_unit(64)); are forbidden, while var x = (ds~load_uint(32), ds~load_unit(64), ds); are not
• Allowed empty inline functions
• fix rare while optimization bug