Struct rustc_mir::hair::cx::Cx

pub struct Cx<'a, 'gcx: 'a + 'tcx, 'tcx: 'a> {
    tcx: TyCtxt<'a, 'gcx, 'tcx>,
    infcx: &'a InferCtxt<'a, 'gcx, 'tcx>,
    pub root_lint_level: NodeId,
    pub param_env: ParamEnv<'gcx>,
    pub identity_substs: &'gcx Substs<'gcx>,
    pub region_scope_tree: Lrc<ScopeTree>,
    pub tables: &'a TypeckTables<'gcx>,
    constness: Constness,
    pub body_owner_kind: BodyOwnerKind,
    check_overflow: bool,
}

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Fields

tcx: TyCtxt<'a, 'gcx, 'tcx>

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infcx: &'a InferCtxt<'a, 'gcx, 'tcx>

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root_lint_level: NodeId

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param_env: ParamEnv<'gcx>

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identity_substs: &'gcx Substs<'gcx>

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Identity Substs for use with const-evaluation.

region_scope_tree: Lrc<ScopeTree>

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tables: &'a TypeckTables<'gcx>

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constness: Constness

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This is Constness::Const if we are compiling a static, const, or the body of a const fn.

body_owner_kind: BodyOwnerKind

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What kind of body is being compiled.

check_overflow: bool

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True if this constant/function needs overflow checks.

Methods

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

pub fn new(     infcx: &'a InferCtxt<'a, 'gcx, 'tcx>,     src_id: NodeId ) -> Cx<'a, 'gcx, 'tcx>

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

pub fn mirror<M: Mirror<'tcx>>(&mut self, ast: M) -> M::Output

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Normalizes ast into the appropriate mirror type.

pub fn usize_ty(&mut self) -> Ty<'tcx>

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pub fn usize_literal(&mut self, value: u64) -> Literal<'tcx>

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pub fn bool_ty(&mut self) -> Ty<'tcx>

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pub fn unit_ty(&mut self) -> Ty<'tcx>

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pub fn true_literal(&mut self) -> Literal<'tcx>

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pub fn false_literal(&mut self) -> Literal<'tcx>

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pub fn const_eval_literal(     &mut self,     lit: &'tcx LitKind,     ty: Ty<'tcx>,     sp: Span,     neg: bool ) -> Literal<'tcx>

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pub fn pattern_from_hir(&mut self, p: &Pat) -> Pattern<'tcx>

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pub fn trait_method(     &mut self,     trait_def_id: DefId,     method_name: &str,     self_ty: Ty<'tcx>,     params: &[Kind<'tcx>] ) -> (Ty<'tcx>, Literal<'tcx>)

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Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn all_fields(     &mut self,     adt_def: &AdtDef,     variant_index: usize ) -> Vec<Field>

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pub fn needs_drop(&mut self, ty: Ty<'tcx>) -> bool

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fn lint_level_of(&self, node_id: NodeId) -> LintLevel

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pub fn tcx(&self) -> TyCtxt<'a, 'gcx, 'tcx>

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pub fn tables(&self) -> &'a TypeckTables<'gcx>

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pub fn check_overflow(&self) -> bool

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pub fn type_moves_by_default(&self, ty: Ty<'tcx>, span: Span) -> bool

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Trait Implementations

impl<'a, 'gcx: 'a + 'tcx, 'tcx: 'a> Clone for Cx<'a, 'gcx, 'tcx>

fn clone(&self) -> Cx<'a, 'gcx, 'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.