pub struct Context { /* fields omitted */ }
The struct that holds the context of a template rendering.
Light wrapper around a BTreeMap
for easier insertions of Serializable
values
Initializes an empty context
Converts the val
parameter to Value
and insert it into the context
let mut context = Context::new();
context.insert("number_users", 42);
Appends the data of the source
parameter to self
, overwriting existing keys.
The source context will be dropped.
let mut target = Context::new();
target.insert("a", 1);
target.insert("b", 2);
let mut source = Context::new();
source.insert("b", 3);
source.insert("d", 4);
target.extend(source);
Converts the context to a serde_json::Value
consuming the context
Returns the "default value" for a type. Read more
This method tests for self
and other
values to be equal, and is used by ==
. Read more
This method tests for !=
.
Performs copy-assignment from source
. Read more
Formats the value using the given formatter. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static