Struct tera::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: Serialize + ?Sized>(&mut self, key: &str, val: &T)
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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 insert<T: Serialize + ?Sized>(&mut self, key: &str, val: &T)
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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.insert("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 Debug for Context
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. 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 PartialEq for Context
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fn eq(&self, __arg_0: &Context) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &Context) -> bool
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This method tests for !=
.