Struct MirFuncBuilder

pub struct MirFuncBuilder<'module, 'ctx> { /* private fields */ }

The currently building MIR function.

There can only be at most one unfinished function for each MirContext inside one unfinished module. It is strongly advised to explicitly call MirFuncBuilder::finish to finish the current function for clarity and observe any error outside drop impl. MirFuncBuilder will automatically finish it on drop.

Implementations

impl<'module, 'ctx> MirFuncBuilder<'module, 'ctx>

pub fn finish(self) -> FuncItemRef<'ctx>

Explicitly finish the function and return the function reference.

Panics

Panic from C if the function content is malformed.

pub fn get_reg(&self, name: &CStr) -> Reg

Get the virtual register or given name.

Function parameters are represented as pre-defined virtual registers of same names.

pub fn new_local_reg(&self, name: &CStr, ty: Ty) -> Reg

Create a new virtual register.

pub fn new_label(&self) -> Label<'module>

Create a new unbound label.

The label must be inserted later via InsnBuilder::label.

pub fn ins<'func>( &'func self, ) -> impl InsnBuilder<'module> + use<'func, 'module, 'ctx>

Append a new instruction to the function.

See InsnBuilder for all instructions available.

Trait Implementations

impl<'module, 'ctx> Debug for MirFuncBuilder<'module, 'ctx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for MirFuncBuilder<'_, '_>

fn drop(&mut self)

Executes the destructor for this type.