shunding/genco

Simple code generation for Rust

GenCo

GenCo is an even simpler code generator for Rust, specifically written for use in reproto.

It does not deal with language-specific syntax, instead it can do some of the basic necessities through specialization.

• Handle imports, if needed.
• Quote strings according to language convention.

Examples

This is an example building some JavaScript:

#[macro_use]
extern crate genco;

use genco::Quoted;

fn main() {
    let mut file: Tokens<JavaScript> = Tokens::new();

    file.push("function foo(v) {");
    file.nested(toks!("return v + ", ", World".quoted(), ";"));
    file.push("}");

    file.push(toks!("foo(", "Hello".quoted(), ");"));

    println!("{}", file.to_string().unwrap());
}

Running this example would print:

function foo(v) {
  return v + ", World";
}
foo("Hello");

Language Support

This section contains example code for some of the supported languages.

For more information, see docs.rs/genco.

Dart

Simple support for importing names.

#[macro_use]
extern crate genco;

fn main() {
    use genco::dart::imported;

    let m = imported("dart:math").alias("m");
    let sqrt = m.name("sqrt");

    let mut t = toks!();
    t.push("void main() {");
    t.nested({
        let mut body = toks!();
        body.push(toks!("print(", "The Square Root Is:".quoted(), " + ", sqrt, "(42));"));
        body
    });
    t.push("}");
}