koa

The project is inspired by the simplicity and the ivy-bitcoin.

The koa project is to create a high-level language that has more expressions than the bitcoin script and is simpler and easy to analyze than soldity(ethereum).

A more detailed explanation is given below. - Doc

Architecture

• Lexer
• Parser
• Compiler
• VM

Language Specification

Primitive Type

• Integer

It is expressed in int. Integer size is 64 bytes.

• String

It is expressed in string.

• Boolean

It is expressed in true or false.

Operators

• Arithmetic

We support +, -, *, /, % only for integer.

• Comparison

We support ==, !=, >, <, >=, <= for comparsion.

• Logical

We support &&, || for logical operation.

• Prefix

We support !, - for prefix operator.

Condition

It is expressed in if(){} or if(){}else{}.

Etc

• return
• \n : All statements should end in \n.
• Assign : It is expressed in =.

Example Code

```go contract { func Sig(sig string){ string pubkey = "fvfidBGruUYC+mTw7CusaCOQbBuZBiYduFgH8hRW97KLmHn0xzB1FV++KI7syo8qXGo8Un24WP40IT78XjKO"

if checkSig(pubkey, sig){
  return true
}
return false

} } ```

Contribution

Contribution Guide CONTRIBUTION

License

Project source code files are made available under the Apache License, Version 2.0 (Apache-2.0), located in the LICENSE.

CLA Hub

To get started, sign the Contributor License Agreement.