Struct rustc::middle::expr_use_visitor::ExprUseVisitor

pub struct ExprUseVisitor<'a, 'gcx: 'a + 'tcx, 'tcx: 'a> { /* fields omitted */ }

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Methods

impl<'a, 'tcx> ExprUseVisitor<'a, 'tcx, 'tcx>

pub fn new(
    delegate: &'a mut (Delegate<'tcx> + 'a),
    tcx: TyCtxt<'a, 'tcx, 'tcx>,
    param_env: ParamEnv<'tcx>,
    region_scope_tree: &'a ScopeTree,
    tables: &'a TypeckTables<'tcx>,
    rvalue_promotable_map: Option<Rc<ItemLocalSet>>
) -> Self

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Creates the ExprUseVisitor, configuring it with the various options provided:

• delegate -- who receives the callbacks
• param_env --- parameter environment for trait lookups (esp. pertaining to Copy)
• region_scope_tree --- region scope tree for the code being analyzed
• tables --- typeck results for the code being analyzed
• rvalue_promotable_map --- if you care about rvalue promotion, then provide the map here (it can be computed with tcx.rvalue_promotable_map(def_id)). None means that rvalues will be given more conservative lifetimes.

See also with_infer, which is used during typeck.

impl<'a, 'gcx, 'tcx> ExprUseVisitor<'a, 'gcx, 'tcx>

pub fn with_infer(
    delegate: &'a mut (Delegate<'tcx> + 'a),
    infcx: &'a InferCtxt<'a, 'gcx, 'tcx>,
    param_env: ParamEnv<'tcx>,
    region_scope_tree: &'a ScopeTree,
    tables: &'a TypeckTables<'tcx>
) -> Self

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

pub fn consume_body(&mut self, body: &Body)

🔬 This is a nightly-only experimental API. (rustc_private)

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pub fn consume_expr(&mut self, expr: &Expr)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

pub fn walk_expr(&mut self, expr: &Expr)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?