Enum CompilerError 

pub enum CompilerError {
    AlreadyDefined(LineCol, VarRef),
    ArrayUsedAsScalar(LineCol, VarRef),
    BinaryOpType(LineCol, &'static str, ExprType, ExprType),
    CallableSyntax(LineCol, CallableMetadata),
    CannotNestUserCallables(LineCol),
    DuplicateLabel(LineCol, String),
    IncompatibleTypeAnnotationInReference(LineCol, VarRef),
    IncompatibleTypesInAssignment(LineCol, ExprType, ExprType),
    InvalidEndCode(LineCol, String),
    Io(LineCol, Error),
    NotAFunction(LineCol, VarRef),
    MisplacedExit(LineCol, &'static str),
    NotAnArray(LineCol, VarRef),
    NotANumber(LineCol, ExprType),
    OutOfConstants(LineCol),
    OutOfRegisters(LineCol, RegisterScope),
    OutOfUpcalls(LineCol),
    Parse(LineCol, String),
    TargetTooFar(LineCol, usize),
    TooManyArrayDimensions(LineCol, usize),
    TypeMismatch(LineCol, ExprType, ExprType),
    UndefinedSymbol(LineCol, VarRef),
    UnknownLabel(LineCol, String),
    WrongNumberOfSubscripts(LineCol, usize, usize),
}

Errors that can occur during compilation.

Variants

AlreadyDefined(LineCol, VarRef)

Attempt to redefine an already-defined symbol.

ArrayUsedAsScalar(LineCol, VarRef)

Array name used without subscripts (as a scalar).

BinaryOpType(LineCol, &'static str, ExprType, ExprType)

Type mismatch in a binary operation.

CallableSyntax(LineCol, CallableMetadata)

Callable invoked with incorrect syntax.

CannotNestUserCallables(LineCol)

Attempt to nest FUNCTION or SUB definitions.

DuplicateLabel(LineCol, String)

Attempt to redefine an already-defined label.

IncompatibleTypeAnnotationInReference(LineCol, VarRef)

Type annotation in a reference doesn’t match the variable’s type.

IncompatibleTypesInAssignment(LineCol, ExprType, ExprType)

Type mismatch in an assignment.

InvalidEndCode(LineCol, String)

END code is out of range.

Io(LineCol, Error)

I/O error while reading the source.

NotAFunction(LineCol, VarRef)

Attempt to call something that is not an array nor a function.

MisplacedExit(LineCol, &'static str)

EXIT statement found outside its expected block.

NotAnArray(LineCol, VarRef)

Attempt to index something that is not an array.

NotANumber(LineCol, ExprType)

Expected a numeric type but got something else.

OutOfConstants(LineCol)

Constants pool has been exhausted.

OutOfRegisters(LineCol, RegisterScope)

Register allocation has been exhausted.

OutOfUpcalls(LineCol)

Upcall table has been exhausted.

Parse(LineCol, String)

Syntax error from the parser.

TargetTooFar(LineCol, usize)

Jump or call target is too far away.

TooManyArrayDimensions(LineCol, usize)

An array has too many dimensions.

TypeMismatch(LineCol, ExprType, ExprType)

Type mismatch where a specific type was expected.

UndefinedSymbol(LineCol, VarRef)

Reference to an undefined symbol.

UnknownLabel(LineCol, String)

Reference to an unknown label.

WrongNumberOfSubscripts(LineCol, usize, usize)

Wrong number of subscripts for an array access.

Implementations

impl Error

pub fn pos(&self) -> LineCol

Returns the source position where this compilation error happened.

pub fn message_without_pos(&self) -> String

Returns this error’s message without the source position prefix.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.