Changelog_TON.md

0.46.0 (2021-06-18)

Compiler features:

• Support internalMsg/externalMsg specifiers for public and external functions
• Support msg.isInternal, msg.isExternal and msg.isTickTock
• Support storeOnes and storeZeroes for TvmBuilder.

Breaking change:

• Change behavior of function <string>.substr().
• Use {dest: ...} instead of .extAddr(...) in emit statement to set destination address.

Gas optimizations.

0.45.0 (2021-05-30)

Compiler features:

• Compiler version is added in the contract's code.
• Decoding struct type from TvmSlice.
• Added new container type vector.

Bugfixes:

• Fixed segmentation fault when using format function
• Fixed problem with comparisons == and != for TvmCell types.
• Fixed bugs in TypeChecker.

Gas optimizations: encoding parameters to builders.

0.44.0 (2021-05-18)

Compiler features:

• Support <array>.empty(), <bytes>.empty() and <string>.empty().
• Support self deploying of a contract (see sample #21).
• Support tvm.buildIntMsg() to generate cell, that contains an internal message.
• Support tvm.sendrawmsg() to send internal/external messages.
• Support command line option --function-ids for printing function ids.

Bugfixes:

• Public functions (that return public state variables) emited an external message (which is paid by the contract). Now these functions emit external messages only on external messages.
• Fix problem with generating inbound external messages (for debots) and responsible functions. In message body there wasn't _answer_id. Now it's added.
• TypeChecker checks call parameter of tvm.buildExtMsg().
• Fix problem (what caused underflow exception) with encoding/decoding of state variables.

0.43.0 (2021-05-12)

Compiler features:

• Support mappings/arrays containing big structs (or another structs) as input/output parameters of public/external functions.
• Support tvm.code(), tvm.codeSalt() and tvm.setCodeSalt.

Some gas optimizations.

Changes:

• selfdestruct appends 0 tons to the internal message (instead of 1000 nanotons).

0.42.0 (2021-04-19)

Breaking change:

• Calling a fallback function (instead of throwing error) in cases:
  1. Bit length of the internal input message is between 1 and 31.
  2. The message has zero bit size and not zero count of references.

Compiler features:

• Added ability to import files via net link.

0.41.0 (2021-04-12)

Compiler features:

• Support indices > 127 for bytes.
• Support iteration over bytes using for loop. For example: for (byte b : byteArray) { ... }.

Bugfixes:

• Fixed minor bugs in TypeChecker.
• Fixed segmentation fault on using library functions.

Improvements:

• '--tvm-optimize' option is now enabled by default.
• Debot feature signBoxHandle is supported in tvm.buildExtMsg() and extMsg call.

0.40.0 (2021-04-06)

Compiler features:

• Support tvm.setPubkey(...);
• Support command line option --debug for generating debug info.

Some gas optimizations and bugfixes.

0.39.0 (2021-03-28)

Compiler Features:

• Gas consumption optimizations
• Support sha256 for string and bytes types
• Support applying twice the modifier with parameter(s) for the function.
• Delete restriction about function id of public functions.

0.38.2 (2021-03-12)

Bugfixes:

• Fixed minor bugs in TypeChecker.

0.38.1 (2021-03-11)

Bugfixes:

• Fix contract execution fail on internal message if the function returns some value.

0.38 (2021-03-09)

Breaking changes:

• Default value of parameter flag is equal to 0. The parameter is used for tvm.transfer and external function calls.
• Introduce keyword responsible used to mark functions that can call a callback function.
• Change behavior for command line option -o [ --output-dir ] path/to/dir and introduce option -f [ --file ] prefixName.

Bugfixes:

• Fixed minor bugs in TypeChecker that cause fails of the compiler.

Use another opcodes for working with mapping(KeyType => TvmSlice) map; So if you used it then be sure that sum of bit length of KeyType and bit length of TvmSlice is less than 1023 bit.

Documentation:

• Write about parameter flag used for tvm.transfer and external function calls. Add sample of flag usage.

0.37 (2021-02-24)

Compiler Features:

• Support fixed point numbers (fixed / ufixed).
• Support functions to convert gas to tons (gasToValue()) and vice versa (valueToGas()).
• Support string methods byteLength() and substr() to work with long strings (which are stored in more than one cell).
• Add methods skip(), compare(), hasNBits(), hasNRefs() and hasNBitsAndRefs() for TvmSlice type.
• Support proper string type comparison which works right with long strings.
• Removed deprecated function hexstring() and explicit int to string conversion.

Bugfixes:

• Fixed a bug with slices comparison.

0.36 (2021-02-04)

Assorted features requested by DeBot support:

• format function now can create long strings (which does not fit one cell), can take string arguments and format integers width and fill settings.
• Some additional parameters were added for tvm.buildExtMsg() and extMsg call to support DeBot external function calls and deploy.

0.35 (2021-02-01)

Compiler Features:

• Support callback functions used for intercontract communication.
• Added string type method append that allows to concatenate long strings.
• Support function sha256(TvmSlice slice) returns (uint256)
• Added api function tvm.buildExtMsg() to generate an external inbound message to call contract function.
• Support constant variables of address type.

Breaking changes:

• Use pragma ton-solidity ...; instead of pragma solidity ...; to restrict compiler version

Bugfixes:

• Fixed an issue with modifier.
• Fixed a function type issue.

0.34 (2020-12-30)

Compiler Features:

• Struct type can be used as a key of a mapping. Some restrictions are imposed on such structs.
• Support bounce and currencies options to deploy contact via new.
• Support range-based for loop for ( range_declaration : range_expression ) loop_statement where range_expression is array or mapping type
• Expanded api function tvm.buildStateInit() to generate a StateInit of the contract with arbitrary parameters.

Breaking changes:

• fallback function is not called on plain tons transfers if there is no receive function in the contract. In this case default receive function is called.

Bugfixes:

• Fixed an issue with generating *.abi.json file.

0.33 (2020-11-18)

Compiler Features:

• Support varInit and pubkey options in new expression.
• Support optional type in complex lvalue expressions. e.g. m[11].get()[22] = 33 where m is mapping(uint => optional(uint[])).
• Support option splitDepth in new expression and in tvm.buildStateInit(...).

Breaking changes:

• public state variable don't create record in *.abi.json in section data. Use keyword static for that goal. For public state variable, getter function is automatically generated. That function can be called locally only.
• Change function interface for tvm.deploy

Bugfixes:

• Code Generator: Fixed a runtime fail if receive or fallback functions are declared as pure or view.
• Type checker: Compiler failed during parsing wrong parameter names.

0.32 (2020-11-03)

Compiler Features:

• Support some math function: math.divc() and math.divr().
• Support tvm.exit() and tvm.exit1().
• Support bytes.toSlice().
• Support tvm.functionId and tvm.decodeFunctionParams for contract constructor.
• Support mapping.at.
• Support api for SmartContractInfo: tx.timestamp, block.timestamp.
• Support api for getting info about size of DAG: cell.dataSize, slice.dataSize and another.
• Support api functions for converting integer or address to a string: format(), string(int) and hexstring.
• Support api for pseudo-random number generator: rnd.next(), rnd.shuffle() and another.
• Support function library calls via library name and object.
• Support pragma to specify default message value: pragma msgValue.
• Support api function for converting string into an integer stoi().
• Support control structure repeat which repeats block of code arbitrary amount of times.
• Changed mapping api function delMin to return optional.

Some little gas optimizations.

0.31 (2020-09-16)

Breaking changes:

• The now returns uint32 value, not uint256
• The msg.value returns uint128 value, not uint256
• Change round mode for math.muldiv()

Compiler Features:

• Optimize runtime code (delete duplicate code and useless checks)
• Add new math operations: math.muldivr() and math.muldivc()
• Support setting workchain id for deploying contracts via new
• Support tvm.buildEmptyData(publicKey) used for deploying contracts

Bugfixes:

• fixed an issue with overridden functionID
• fixed an issue with inline function

0.30 (2020-08-21)

APIs for common TON-specific functionality:

• Supported tick and tock transactions. See onTickTock function. Bug fixes.

0.29 (2020-08-19)

APIs for common TON-specific functionality:

• Supported optional type
• Added methods for optional type: set, hasValue, get

Changed APIs to handle mappings: fetch, min, max, prev, next and ect.

0.20 (2020-03-30)

APIs for common TON-specific functionality:

• Migrated frontend to 0.6.3

• Native types support

  • TvmCell: toSlice()
  • TvmSlice: decode(), size(), loadRef(), loadRefAsSlice()

• Native TVM operations as tvm member functions

  • Custom message builders: sendMsg(), sendRawMsg()
  • Account state access: setCode(), setCurrentCode(), commit(), resetStorage()
  • Misc: cdatasize(), transLT(), configParam()

• Multiple stability fixes

• Gas consumption optimizations

0.18 (2020-01-30)

APIs for common TON-specific functionality:

• Address constructors and accessors
• Extended address format that includes workchain ID
  • Members for workchain ID and the actual address part
  • isZero() and unpack() functions
• External addresses support

New APIs to handle mappings:

• next(), exists(), min(), empty(), fetch(), delMin()

Optimizations:

• Smarter parsing of inbound messages to build SmartContractInfo
• Reduced gas consumption when working with smart-contract persistent memory

Enum support