Trait UllbcPass

pub trait UllbcPass: Sync {
    // Provided methods
    fn transform_body(&self, _ctx: &mut TransformCtx, _body: &mut ExprBody) { ... }
    fn transform_function(&self, ctx: &mut TransformCtx, decl: &mut FunDecl) { ... }
    fn transform_ctx(&self, ctx: &mut TransformCtx) { ... }
    fn name(&self) -> &str { ... }
    fn log_before_body(
        &self,
        ctx: &TransformCtx,
        name: &Name,
        body: Result<&ExprBody, &Opaque>,
    ) { ... }
}

A pass that modifies ullbc bodies.

Provided Methods

fn transform_body(&self, _ctx: &mut TransformCtx, _body: &mut ExprBody)

Transform a body.

fn transform_function(&self, ctx: &mut TransformCtx, decl: &mut FunDecl)

Transform a function declaration. This forwards to transform_body by default.

fn transform_ctx(&self, ctx: &mut TransformCtx)

Transform the given context. This forwards to the other methods by default.

fn name(&self) -> &str

The name of the pass, used for debug logging. The default implementation uses the type name.

fn log_before_body( &self, ctx: &TransformCtx, name: &Name, body: Result<&ExprBody, &Opaque>, )

Log that the pass is about to be run on this body.

Implementors

impl UllbcPass for charon_lib::transform::control_flow::duplicate_return::Transform

impl UllbcPass for charon_lib::transform::control_flow::merge_goto_chains::Transform

impl UllbcPass for charon_lib::transform::finish_translation::insert_assign_return_unit::Transform

impl UllbcPass for charon_lib::transform::finish_translation::insert_ptr_metadata::Transform

This pass computes the metadata for Rvalue, which is used to create references and raw pointers. E.g., in cases like:

let x = &[mut] (*some_v).field;

If the (*some_v).field is a DST, like [i32], we will need to fetch the metadata, i.e., the length of the slice, and store it in a local variable, then we have:

let x = Rvalue::Ref { place:(*some_v).field, kind: [mut], ptr_metadata: PtrMetadata(some_v) };

There should be a new local variable introduced to store PtrMetadata(some_v).

impl UllbcPass for charon_lib::transform::normalize::filter_unreachable_blocks::Transform

impl UllbcPass for charon_lib::transform::normalize::transform_dyn_trait_calls::Transform

impl UllbcPass for charon_lib::transform::resugar::inline_local_panic_functions::Transform

impl UllbcPass for charon_lib::transform::resugar::reconstruct_asserts::Transform

impl UllbcPass for charon_lib::transform::resugar::reconstruct_boxes::Transform

The special alloc::boxed::box_new(x) intrinsic becomes the following:

@2 := size_of<i32>
@3 := align_of<i32>
@4 := alloc::alloc::exchange_malloc(move (@2), move (@3))
storage_live(@5)
@5 := shallow_init_box::<i32>(move (@4))
// possibly some intermediate statements
*(@5) := x

We reconstruct this into a call to Box::new(x).

impl UllbcPass for charon_lib::transform::resugar::reconstruct_fallible_operations::Transform

impl UllbcPass for charon_lib::transform::simplify_output::index_intermediate_assigns::Transform

impl UllbcPass for charon_lib::transform::simplify_output::inline_promoted_consts::Transform

impl UllbcPass for charon_lib::transform::simplify_output::remove_unit_locals::Transform

impl UllbcPass for charon_lib::transform::simplify_output::simplify_constants::Transform

impl UllbcPass for charon_lib::transform::simplify_output::update_block_indices::Transform