Enum RenderError 

pub enum RenderError {
    UnknownRule(String),
    UnknownProcessor(String),
    ProcessorError {
        processor: String,
        message: String,
    },
    InvalidExpression(String),
    EmptyChoice,
    ExhaustedUniqueChoice(String),
    UnsupportedUniqueChoice(String),
    InvalidWeightedChoice(String),
    CircularRuleReference(Vec<String>),
    UnsupportedValue(String),
    UnsupportedIterationSource {
        source: String,
        value_type: String,
    },
    ImmutableLoopBinding(String),
    InvalidConfigRoot,
    UnsupportedStructuredTarget(String),
    JsonSerialization(String),
}

Error returned while compiling or rendering Copperlace rules.

Variants

UnknownRule(String)

A template referenced a name that is neither bound nor defined as a rule.

UnknownProcessor(String)

A template pipeline referenced a processor that is not registered.

ProcessorError

A registered processor rejected the rendered value.

Fields

processor: String

message: String

InvalidExpression(String)

A {...} template expression could not be parsed.

EmptyChoice

An array-backed choice rule had no alternatives.

ExhaustedUniqueChoice(String)

A strict unique choice call used every usable alternative.

UnsupportedUniqueChoice(String)

A strict unique choice call reached a rule that is not an array-backed choice.

InvalidWeightedChoice(String)

A weighted choice config entry is malformed.

CircularRuleReference(Vec<String>)

Rendering detected a recursive rule cycle.

UnsupportedValue(String)

A config value type was parsed but is not renderable.

UnsupportedIterationSource

A loop source resolved successfully but is not iterable.

Fields

source: String

Source expression from the for statement.

value_type: String

Resolved value type.

ImmutableLoopBinding(String)

An overwrite binding targeted an immutable loop value.

InvalidConfigRoot

The root configuration value was not an object.

UnsupportedStructuredTarget(String)

A structured render was requested for a non-object path.

JsonSerialization(String)

A structured value could not be serialized to JSON.

Trait Implementations

impl Debug for RenderError

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

Formats the value using the given formatter.

impl Display for RenderError

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

Formats the value using the given formatter.

impl Eq for RenderError

impl Error for RenderError

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<RenderError> for ConfigError

fn from(error: RenderError) -> Self

Converts to this type from the input type.

impl PartialEq for RenderError

fn eq(&self, other: &RenderError) -> 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 StructuralPartialEq for RenderError