Struct Context 

pub struct Context { /* private fields */ }

A dynamic key-value context container that can store heterogeneous data.

Internally uses a BTreeMap<String, serde_value::Value>, allowing you to insert any serializable value while preserving insertion order and allowing serialization/deserialization.

Trait Implementations

impl ContextDump for Context

Implements the ContextDump trait for the Context struct, allowing the internal data map to be extracted as a clone.

This enables the context to be used in error reporting or structured logging without mutating the original instance.

fn dump(&self) -> BTreeMap<String, Value>

impl Contextualize for Context

fn new() -> Self

Creates a new, empty Context.

fn insert(&mut self, k: String, v: Value)

Inserts a key-value pair into the context.

Arguments

• k - The key as a String.
• v - The value as a serde_value::Value.

fn get(&self, k: &str) -> Option<&Value>

Retrieves a reference to a value associated with the given key.

Arguments

• k - The key as a string slice.

Returns

• Some(&Value) if the key exists, or None otherwise.

fn extend(&mut self, data: BTreeMap<String, Value>)

Extends the context with the given key-value pairs.

Existing keys will be overwritten.

Arguments

• data - A BTreeMap of key-value pairs to insert.

fn inner(&self) -> BTreeMap<String, Value>

Returns a cloned copy of the internal map.

Useful for inspection or when you need owned data.

fn from_json(json: &str) -> Result<Self>

Creates a new context from a JSON string.

fn to_json(&self, pretty: bool) -> Result<String>

Serializes the context to a JSON string.

fn from_toml(toml: &str) -> Result<Self>

Creates a new context from a TOML string.

fn to_toml(&self, pretty: bool) -> Result<String>

Serializes the context to a TOML string.

fn from_yaml(yaml: &str) -> Result<Self>

Creates a new context from a YAML string.

fn to_yaml(&self) -> Result<String>

Serializes the context to a YAML string.

impl Debug for Context

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

Formats the value using the given formatter.

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Context

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Context

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.