Enum RustSemaError 

pub enum RustSemaError {
    UnresolvedName {
        name: String,
        offset: u32,
    },
    UnknownFunction {
        name: String,
        offset: u32,
    },
    CannotBorrowImmutableAsMutable {
        name: String,
        offset: u32,
    },
    ReturnsReferenceToLocal {
        offset: u32,
    },
    MultipleMutableBorrows {
        offset: u32,
    },
    MutableAndSharedBorrow {
        offset: u32,
    },
    TypeMismatch {
        context: String,
        expected: String,
        found: String,
    },
    CannotDeref {
        found: String,
    },
    NonBooleanCondition {
        found: String,
    },
    ArgCountMismatch {
        function: String,
        expected: usize,
        found: usize,
    },
    MissingReturn {
        function: String,
        expected: String,
    },
    AssignToImmutable {
        name: String,
    },
    InternalInvariant {
        message: String,
    },
}

Errors from the Rust semantic-analysis stages.

Variants

UnresolvedName

A variable use did not resolve to any in-scope binding (rustc E0425).

Fields

name: String

The unresolved identifier text.

offset: u32

Source byte offset of the use.

UnknownFunction

A call referenced a function that is not defined (rustc E0425).

Fields

name: String

The unresolved function name.

offset: u32

Source byte offset of the call.

CannotBorrowImmutableAsMutable

A &mut borrow targeted an immutable place (rustc E0596).

Fields

name: String

The immutable binding being borrowed mutably.

offset: u32

Source byte offset of the borrowed place.

ReturnsReferenceToLocal

A function returned a reference to a call-local value (rustc E0597).

Fields

offset: u32

Source byte offset of the offending place.

MultipleMutableBorrows

Two mutable borrows of the same place are live simultaneously (rustc E0499).

Fields

offset: u32

Source byte offset of the conflicting borrow.

MutableAndSharedBorrow

A mutable and a shared borrow of the same place are live at once (rustc E0502).

Fields

offset: u32

Source byte offset of the conflicting borrow.

TypeMismatch

An expression’s type did not match the expected type (rustc E0308).

Fields

context: String

Where the mismatch occurred (let binding, return, operand, argument).

expected: String

The expected type.

found: String

The type actually found.

CannotDeref

A dereference was applied to a non-reference type (rustc E0614).

Fields

found: String

The non-reference type.

NonBooleanCondition

An if condition was not bool (rustc E0308).

Fields

found: String

The non-boolean condition type.

ArgCountMismatch

A call passed the wrong number of arguments (rustc E0061).

Fields

function: String

The called function name.

expected: usize

The declared parameter count.

found: usize

The supplied argument count.

MissingReturn

A non-unit function body does not return on all paths (rustc E0308).

Fields

function: String

The function name.

expected: String

The declared return type.

AssignToImmutable

Assignment to a binding not declared mut (rustc E0384).

Fields

name: String

The immutable binding being assigned.

InternalInvariant

Internal pass invariant failed.

Fields

message: String

Actionable invariant diagnostic.

Trait Implementations

impl Clone for RustSemaError

fn clone(&self) -> RustSemaError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RustSemaError

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

Formats the value using the given formatter.

impl Display for RustSemaError

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

Formats the value using the given formatter.

impl Error for RustSemaError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.