Struct EvaluateResult 

pub struct EvaluateResult {
    pub value: Option<String>,
    pub error: Option<String>,
}

Result of evaluating a script in the Node Realm.

Captures the serialized return value or an error message from evaluate_in_node_realm. Both fields are Option<String>:

• value is Some when the script produced a non-undefined result.
• error is Some when the evaluation or serialization failed.

At most one of value / error is Some — never both.

Fields

value: Option<String>

Serialized JS return value (JSON string), or None if undefined/error.

error: Option<String>

Error message when evaluation failed, or None on success.

Implementations

impl EvaluateResult

pub fn ok(value: String) -> Self

Create an ok result with a serialized value.

pub fn err(error: String) -> Self

Create an error result with a message.

pub fn is_ok(&self) -> bool

Returns true when the evaluation succeeded (no error).

pub fn is_err(&self) -> bool

Returns true when the evaluation failed.

Trait Implementations

impl Clone for EvaluateResult

fn clone(&self) -> EvaluateResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EvaluateResult

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

Formats the value using the given formatter.

impl Default for EvaluateResult

fn default() -> EvaluateResult

Returns the “default value” for a type.

impl Eq for EvaluateResult

impl PartialEq for EvaluateResult

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EvaluateResult