mscl-as-transformer

An AssemblyScript transformer to use with Massa Smart Contract.

Installation

This module can be installed using GitPkg that makes subfolders of repos directly usable with npm or yarn.

To install this module, run the following command at your project root directory :

npm install -D 'https://gitpkg.now.sh/massalabs/massa-sc-library/tool/as-transformer?main'

Usage

You can use the transformer by adding --transform mscl-as-transformer to your asc command.

For instance, to compile assembly/my_sc.ts with mscl-as-transformer you will execute:

yarn asc --transform mscl-as-transformer assembly/my_sc.ts --target release --exportRuntime --binaryFile build/my_sc.wasm

Transformations

The following transformations are performed:

include_base64

Loads a file and writes its content in base64. This is useful when you want to push a smart contract to the blockchain.

Example:

export function main(_args: string): i32 {
    const bytes = include_base64('./build/sc.wasm'); // mscl-as-transformer will read `build/sc.wasm`, encode it in base64 and put the result in a string used to initialize `bytes`.
    const sc_addr = create_sc(bytes);
    call(sc_addr, "advance", "", 0);
    generate_event("gol SC deployed at addr: " + sc_addr);
    return 0;
}