Enum ToolError 

pub enum ToolError {
    NotFound {
        tool: &'static str,
        install_hint: &'static str,
    },
    ExitNonZero {
        tool: &'static str,
        code: Option<i32>,
        stderr: String,
    },
    TimedOut {
        tool: &'static str,
        timeout: Duration,
    },
    NoOutput {
        tool: &'static str,
    },
    Io(Error),
}

Why an external tool invocation ([execute]) failed.

tool names the CLI tool ("lightningcss", "esbuild") in every variant so a caller juggling both CSS and JS pipelines can report which one broke without threading the name through separately.

Variants

NotFound

program was not found on PATH. install_hint is preset-specific guidance (e.g. an npm install command) surfaced verbatim in the error message.

Fields

tool: &'static str

install_hint: &'static str

ExitNonZero

The process ran and exited with a non-zero status. stderr carries whatever diagnostic the tool itself printed.

Fields

tool: &'static str

code: Option<i32>

stderr: String

TimedOut

The process did not finish within the given timeout. The process is killed (kill_on_drop) rather than left to run in the background.

Fields

tool: &'static str

timeout: Duration

NoOutput

The process exited successfully but output_path is missing or empty — the tool silently produced nothing.

Fields

tool: &'static str

Io(Error)

A spawn/wait failure not attributable to a missing binary.

Trait Implementations

impl Debug for ToolError

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

Formats the value using the given formatter.

impl Display for ToolError

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

Formats the value using the given formatter.

impl Error for ToolError

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<ToolError> for CssError

fn from(e: ToolError) -> Self

Converts to this type from the input type.

impl From<ToolError> for JsError

fn from(e: ToolError) -> Self

Converts to this type from the input type.