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v0.3.1: Göttingen release (aka June release) (#1404)
* v0.3.1 Göttingen ### Added - Write environment configuration into Substrate metadata. [xermicus](https://github.com/xermicus) - Tornado cash as an exemplary integration test for Substrate chain extensions. [xermicus](https://github.com/xermicus) - `is_contract` runtime API is available as a builtin for Substrate. [xermicus](https://github.com/xermicus) - The `wasm-opt` optimizer now optimizes the Wasm bytecode on the Substrate target. [xermicus](https://github.com/xermicus) - Call flags are now available for Substrate. [xermicus](https://github.com/xermicus) - Read compiler configurations from toml file. [salaheldinsoliman](https://github.com/salaheldinsoliman) - Accounts declared with `@payer(my_account)` can be accessed with the syntax `tx.accounts.my_account`. [LucasSte](https://github.com/LucasSte) - `delegatecall()` builtin has been added for Substrate. [xermicus](https://github.com/xermicus) - `get_contents_of_file_no` for Solang parser. [BenTheKush](https://github.com/BenTheKush) - `set_code_hash()` builtin has been aded for Substrate. [xermicus](https://github.com/xermicus) ### Fixed - Diagnostics do not include large numbers anymore. [seanyoung](https://github.com/seanyoung) - Correctly parse and resolve `require(i < 2**255)`. [seanyoung](https://github.com/seanyoung) - Virtual function are available for call. [xermicus](https://github.com/xermicus) - Allow `.wrap()` and `.unwrap()` user defined type methods in constants. [xermicus](https://github.com/xermicus) - `@inheritdoc` now works with bases of bases. [seanyoung](https://github.com/seanyoung) - Allow destructures to assign to storage variables. [seanyoung](https://github.com/seanyoung) - Do not allow push and pop in fixed length arrays. [LucasSte](https://github.com/LucasSte) - Improve unused variable elimination to remove unused arrays. [LucasSte](https://github.com/LucasSte) - Salt argument should be of type `bytes32`. [seanyoung](https://github.com/seanyoung) - Allow return vallues to be ignored in try-catch statements. [seanyoung](https://github.com/seanyoung) - Optimize modifiers' CFGs. [xermicus](https://github.com/xermicus) - Fix an error whereby building large contracts would cause an LLVM error. [LucasSte](https://github.com/LucasSte) - A constructor for a Solana contract cannot run twice on the same data account. [seanyoung](https://github.com/seanyoung) - Split the `call` and `deploy` dispatches on Substrate. [xermicus](https://github.com/xermicus) ### Changed - Minimum Supported Rust Version (MSRV) is Rust `1.68`. - `@payer` annotation declares an account in a constructor. [LucasSte](https://github.com/LucasSte) - Do not allow `.call()` functions in functions declared as view. [seanyoung](https://github.com/seanyoung) - Storage accessor function matches solc, and returns struct members if the sole return value is a single struct [seanyoung](https://github.com/seanyoung) - **breaking** Constructor annotations above a constructor can either declare an account or receive a literal parameter. [LucasSte](https://github.com/LucasSte) ``` contract MyContract { @payer(acc) // Declares account acc @space(2+3) // Only literals or constant expressions allowed @seed(myseed) // NOT ALLOWED constructor(bytes myseed) {} } ``` - Annotations placed before constructor arguments refer to the latter. [LucasSte](https://github.com/LucasSte) ``` contract MyContract { @payer(acc) // Declares account acc @space(2+3) // Only literals or constant expressions allowed constructor(@seed bytes myseed) {} // When an annotations refers to a parameter, the former must appear right before the latter. } ``` Signed-off-by: Lucas Steuernagel <lucas.tnagel@gmail.com> --------- Signed-off-by: Lucas Steuernagel <lucas.tnagel@gmail.com>
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