Enum rustc::infer::type_variable::TypeVariableOrigin

pub enum TypeVariableOrigin {
    MiscVariable(Span),
    NormalizeProjectionType(Span),
    TypeInference(Span),
    TypeParameterDefinition(Span, Name),
    ClosureSynthetic(Span),
    SubstitutionPlaceholder(Span),
    AutoDeref(Span),
    AdjustmentType(Span),
    DivergingStmt(Span),
    DivergingBlockExpr(Span),
    DivergingFn(Span),
    LatticeVariable(Span),
    Generalized(TyVid),
}

🔬 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?

Reasons to create a type inference variable

Variants

MiscVariable(Span)

🔬 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?

NormalizeProjectionType(Span)

🔬 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?

TypeInference(Span)

🔬 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?

TypeParameterDefinition(Span, Name)

🔬 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?

ClosureSynthetic(Span)

🔬 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?

one of the upvars or closure kind parameters in a ClosureSubsts (before it has been determined)

SubstitutionPlaceholder(Span)

🔬 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?

AutoDeref(Span)

🔬 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?

AdjustmentType(Span)

🔬 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?

DivergingStmt(Span)

🔬 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?

DivergingBlockExpr(Span)

🔬 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?

DivergingFn(Span)

🔬 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?

LatticeVariable(Span)

🔬 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?

Generalized(TyVid)

🔬 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?

Trait Implementations

impl Copy for TypeVariableOrigin

impl Clone for TypeVariableOrigin

fn clone(&self) -> TypeVariableOrigin

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TypeVariableOrigin

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.