Enum ExcelMcpError 

pub enum ExcelMcpError {
    NotFound(String),
    InvalidInput(String),
    EngineUnsupported(String),
    CapacityExceeded(String),
    IoError(String),
    ParseError(String),
    Evicted(String),
}

Central error type for the Excel MCP server.

Each variant carries a descriptive String message so that callers (ultimately the LLM client) receive actionable feedback.

Variants

NotFound(String)

The requested resource (workbook, sheet, cell, etc.) was not found.

InvalidInput(String)

The caller supplied an invalid parameter value.

EngineUnsupported(String)

The requested operation is not supported by the engine that owns the workbook.

CapacityExceeded(String)

The workbook store has reached its maximum capacity.

IoError(String)

An I/O error occurred (file read/write, path issues, etc.).

ParseError(String)

A parsing error occurred (cell references, data formats, etc.).

Evicted(String)

The workbook was evicted from the store due to inactivity.

Trait Implementations

impl Clone for ExcelMcpError

fn clone(&self) -> ExcelMcpError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExcelMcpError

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

Formats the value using the given formatter.

impl Display for ExcelMcpError

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

Formats the value using the given formatter.

impl Error for ExcelMcpError

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.

impl From<Error> for ExcelMcpError

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ExcelMcpError

fn from(err: Error) -> Self

Converts to this type from the input type.

impl PartialEq for ExcelMcpError

fn eq(&self, other: &ExcelMcpError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ExcelMcpError

impl StructuralPartialEq for ExcelMcpError