Struct FunctionBuilder 

pub struct FunctionBuilder { /* private fields */ }

Implementations

impl FunctionBuilder

pub fn new(ty: FuncType) -> Self

Examples found in repository

examples/simple_add.rs (line 14)

fn main() {
    let out_file = env::args().nth(1).expect("argument missing: output file");

    let mut md = ModuleBuilder::new();
    let f = FunctionBuilder::new(funtype!((i32, i32) -> i32))
        .code(|cb, params| {
            let a = params[0];
            let b = params[1];
            cb.get_local(a).get_local(b).i32_add().return_()
        })
        .build();
    md.new_function(f);

    let module = md.build();
    let mut code = Vec::new();
    module.dump(&mut code);
    let mut out = File::create(out_file).unwrap();
    out.write(&code).unwrap();
}

examples/fibonacci.rs (line 15)

fn main() {
    let out_file = env::args().nth(1).expect("argument missing: output file");

    let mut md = ModuleBuilder::new();
    // function to create must be the 0th function of the module...
    let fib = FunctionIndex(0).into();
    let f = FunctionBuilder::new(funtype!((i32) -> i32))
        .code(|cb, params| {
            let n = params[0];
            cb.get_local(n)
                .constant(1i32)
                .i32_sub()
                .call(fib)
                .get_local(n)
                .constant(2i32)
                .i32_sub()
                .call(fib)
                .i32_add()
                .return_()
        })
        .build();
    md.new_function(f);

    let module = md.build();
    let mut code = Vec::new();
    module.dump(&mut code);
    let mut out = File::create(out_file).unwrap();
    out.write(&code).unwrap();
}

pub fn build(self) -> (FuncType, FunctionBody)

Examples found in repository

examples/simple_add.rs (line 20)

fn main() {
    let out_file = env::args().nth(1).expect("argument missing: output file");

    let mut md = ModuleBuilder::new();
    let f = FunctionBuilder::new(funtype!((i32, i32) -> i32))
        .code(|cb, params| {
            let a = params[0];
            let b = params[1];
            cb.get_local(a).get_local(b).i32_add().return_()
        })
        .build();
    md.new_function(f);

    let module = md.build();
    let mut code = Vec::new();
    module.dump(&mut code);
    let mut out = File::create(out_file).unwrap();
    out.write(&code).unwrap();
}

examples/fibonacci.rs (line 29)

fn main() {
    let out_file = env::args().nth(1).expect("argument missing: output file");

    let mut md = ModuleBuilder::new();
    // function to create must be the 0th function of the module...
    let fib = FunctionIndex(0).into();
    let f = FunctionBuilder::new(funtype!((i32) -> i32))
        .code(|cb, params| {
            let n = params[0];
            cb.get_local(n)
                .constant(1i32)
                .i32_sub()
                .call(fib)
                .get_local(n)
                .constant(2i32)
                .i32_sub()
                .call(fib)
                .i32_add()
                .return_()
        })
        .build();
    md.new_function(f);

    let module = md.build();
    let mut code = Vec::new();
    module.dump(&mut code);
    let mut out = File::create(out_file).unwrap();
    out.write(&code).unwrap();
}

pub fn new_local(&mut self, ty: ValueType) -> LocalIndex

pub fn new_locals(&mut self, tys: Vec<ValueType>) -> Vec<LocalIndex>

pub fn code<F: FnOnce(CodeBuilder, &[LocalIndex]) -> CodeBuilder>( self, f: F, ) -> Self

Examples found in repository

examples/simple_add.rs (lines 15-19)

fn main() {
    let out_file = env::args().nth(1).expect("argument missing: output file");

    let mut md = ModuleBuilder::new();
    let f = FunctionBuilder::new(funtype!((i32, i32) -> i32))
        .code(|cb, params| {
            let a = params[0];
            let b = params[1];
            cb.get_local(a).get_local(b).i32_add().return_()
        })
        .build();
    md.new_function(f);

    let module = md.build();
    let mut code = Vec::new();
    module.dump(&mut code);
    let mut out = File::create(out_file).unwrap();
    out.write(&code).unwrap();
}

examples/fibonacci.rs (lines 16-28)

fn main() {
    let out_file = env::args().nth(1).expect("argument missing: output file");

    let mut md = ModuleBuilder::new();
    // function to create must be the 0th function of the module...
    let fib = FunctionIndex(0).into();
    let f = FunctionBuilder::new(funtype!((i32) -> i32))
        .code(|cb, params| {
            let n = params[0];
            cb.get_local(n)
                .constant(1i32)
                .i32_sub()
                .call(fib)
                .get_local(n)
                .constant(2i32)
                .i32_sub()
                .call(fib)
                .i32_add()
                .return_()
        })
        .build();
    md.new_function(f);

    let module = md.build();
    let mut code = Vec::new();
    module.dump(&mut code);
    let mut out = File::create(out_file).unwrap();
    out.write(&code).unwrap();
}