Struct CodeGenLib::x86::function::Function

pub struct Function {
    pub name: String,
    pub gen: Vec<Vec<u8>>,
    pub esymbols: Vec<ExternSymbol>,
    pub vars: Vec<Variabel>,
    /* private fields */
}

The Function class is a handler for the code generation of one function

Fields

name: String

gen: Vec<Vec<u8>>

esymbols: Vec<ExternSymbol>

vars: Vec<Variabel>

Implementations

impl Function

pub fn new(name: &str, adrmng: &mut AdressManager) -> Function

Examples found in repository

examples/jit.rs (lines 7-10)

pub fn main() -> Result<()> {
    let mut adr = AdressManager::new((0, 0));
    let mut func = Function::new(
        "five",
        &mut adr
    );

    func.ret_int(5);

    unsafe {
        let typed = func.typed::<(), u32>().unwrap();
        let res = typed();

        println!("5 = {}", res);
    };

    Ok(())
}

pub fn asm_ret(&mut self) -> &mut Self

Adds a return

pub fn asm_mov(&mut self, reg: REGISTER, value: u64) -> &mut Self

Adds a assembly mov command

pub fn asm_mov_reg(&mut self, from: REGISTER, to: REGISTER) -> &mut Self

Adds a assembly mov from register to register command

pub fn asm_adc(&mut self, reg: REGISTER, value: u64) -> &mut Self

Adds a assembly adc command

pub fn asm_adc_reg(&mut self, dest: REGISTER, src: REGISTER) -> &mut Self

Adds a assembly adc command which adds the registers together

pub fn ret_int(&mut self, value: u64) -> &mut Self

Returns an intenger

Examples found in repository

examples/simple.rs (line 9)

pub fn main() -> Result<(), ArtifactError>{
    let mut builder = Builder::new();

    let func = builder.add_function("call");
    func.call("callme");
    func.ret_int(5);

    builder.build("test.o")?;

    Ok(())
}

examples/jit.rs (line 12)

pub fn main() -> Result<()> {
    let mut adr = AdressManager::new((0, 0));
    let mut func = Function::new(
        "five",
        &mut adr
    );

    func.ret_int(5);

    unsafe {
        let typed = func.typed::<(), u32>().unwrap();
        let res = typed();

        println!("5 = {}", res);
    };

    Ok(())
}

pub fn asm_call(&mut self, adr: u32) -> &mut Self

Adds an call to the adress

pub fn call(&mut self, dest: &str) -> &mut Self

Calls a function with the name of dest

Examples found in repository

examples/simple.rs (line 8)

pub fn main() -> Result<(), ArtifactError>{
    let mut builder = Builder::new();

    let func = builder.add_function("call");
    func.call("callme");
    func.ret_int(5);

    builder.build("test.o")?;

    Ok(())
}

pub fn create_var(&mut self, name: &str, typ: VarDataType) -> Variabel

Adds a variable to the function

pub fn get_gen(&mut self) -> Vec<u8>

Returns the generated code of the function

Trait Implementations

impl Clone for Function

fn clone(&self) -> Function

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl JitRuntime for Function

unsafe fn typed<Params, Ret>(&mut self) -> Result<extern "C" fn() -> Ret>

Tr

impl Optimize for Function

fn optimize(&mut self)