Struct sapper_tmpl::Context
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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
Methods
impl Context
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pub fn new() -> Context
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Initializes an empty context
pub fn add<T>(&mut self, key: &str, val: &T) where
T: Serialize,
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T: Serialize,
Converts the val
parameter to Value
and insert it into the context
ⓘThis example is not tested
let mut context = Context::new(); // user is an instance of a struct implementing `Serialize` context.add("number_users", 42);
pub fn extend(&mut self, source: Context)
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Appends the data of the source
parameter to self
overwriting existing keys.
The source context will be dropped
ⓘThis example is not tested
let mut target = Context::new(); target.add("a", 1); target.add("b", 2); let mut source = Context::new(); source.add("b", 3); source.add("d", 4); target.extend(source);
Trait Implementations
impl Serialize for Context
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fn serialize<S>(
&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
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&self,
serializer: S
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where
S: Serializer,
Serialize this value into the given Serde serializer. Read more
impl Clone for Context
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fn clone(&self) -> Context
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl Debug for Context
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fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more