subsembly compile

Project compilation

Overview

Compiles current Subsembly project. More specifically it installs the dependencies and generates the required files for the Runtime to support the metadata interface used by PolkadotJS. Lastly, it compiles the Subsembly Runtime into the hex encoded wasm binary file (WASM blob).

Workflow

The workflow of the compile command is following:

1. Make sure the dependencies are installed by checking node_modules folder.

2. Generate metadata of the project

   1. Parse system and other modules inside assembly/pallets directory to extract storage entries, calls and constants.

   2. Generate files:

      1. metadata.ts

         Contains a function that returns SCALE encoded metadata of the project

      2. dispatcher.ts

         Contains a function that is used to dispatch extrinsic calls of corresponding modules

   3. Build wasm file:

      Compile AS project into .wasm file, hex encode the binary and save it in build directory.

Build folder

AssemblyScript places compiled wasm files inside the build folder in the root directory. The hex encoded wasm bytecode of Subsembly runtime is also placed in the same folder.

Syntax

subsembly compile

Examples

# creates new compiled wasm of the runtime in /build directory
subsembly compile

And the result of this command is reflected in build folder:

Picture 2. Build folder files