Enum TemplateError 

pub enum TemplateError {
    VariableNotFound {
        variable: String,
        available_variables: Box<Vec<String>>,
        suggestions: Box<Vec<String>>,
        location: Box<ErrorLocation>,
    },
    CircularDependency {
        chain: Box<Vec<DependencyChainEntry>>,
    },
    SyntaxError {
        message: String,
        location: Box<ErrorLocation>,
    },
    DependencyRenderFailed {
        dependency: String,
        source: Box<dyn Error + Send + Sync>,
        location: Box<ErrorLocation>,
    },
    ContentFilterError {
        depth: usize,
        source: Box<dyn Error + Send + Sync>,
        location: Box<ErrorLocation>,
    },
}

Enhanced template errors with detailed context

Variants

VariableNotFound

Variable referenced in template was not found in context

Fields

variable: String

The name of the variable that was not found in the template context

available_variables: Box<Vec<String>>

Complete list of variables available in the current template context

suggestions: Box<Vec<String>>

Suggested similar variable names based on Levenshtein distance analysis

location: Box<ErrorLocation>

Location information including resource, file path, and dependency chain

CircularDependency

Circular dependency detected in template rendering

Fields

chain: Box<Vec<DependencyChainEntry>>

Complete dependency chain showing the circular reference path

SyntaxError

Template syntax parsing or validation error

Fields

message: String

Human-readable description of the syntax error

location: Box<ErrorLocation>

Location information including resource, file path, and dependency chain

DependencyRenderFailed

Failed to render a dependency template

Fields

dependency: String

Name/identifier of the dependency that failed to render

source: Box<dyn Error + Send + Sync>

Underlying error that caused the render failure

location: Box<ErrorLocation>

Location information including resource, file path, and dependency chain

ContentFilterError

Error occurred during content filter processing

Fields

depth: usize

Recursion depth when the error occurred (for debugging infinite loops)

source: Box<dyn Error + Send + Sync>

Underlying error that caused the content filter failure

location: Box<ErrorLocation>

Location information including resource, file path, and dependency chain

Implementations

impl TemplateError

pub fn format_with_context(&self) -> String

Generate user-friendly error message with context and suggestions

Trait Implementations

impl Debug for TemplateError

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

Formats the value using the given formatter.

impl Display for TemplateError

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

Formats the value using the given formatter.

impl Error for TemplateError

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.