[−][src]Struct tera::Context
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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impl Context
pub fn new() -> Context
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pub fn new() -> Context
Initializes an empty context
pub fn insert<T: Serialize + ?Sized>(&mut self, key: &str, val: &T)
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pub fn insert<T: Serialize + ?Sized>(&mut self, key: &str, val: &T)
Converts the val
parameter to Value
and insert it into the context
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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pub fn extend(&mut self, source: Context)
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);
Trait Implementations
impl Default for Context
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impl Default for Context
impl PartialEq<Context> for Context
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impl PartialEq<Context> for Context
fn eq(&self, other: &Context) -> bool
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fn eq(&self, other: &Context) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Context) -> bool
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fn ne(&self, other: &Context) -> bool
This method tests for !=
.
impl Clone for Context
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impl Clone for Context
fn clone(&self) -> Context
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fn clone(&self) -> Context
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Debug for Context
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impl Debug for Context
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Serialize for Context
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impl Serialize for Context
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
type Owned = T
fn to_owned(&self) -> T
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fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)
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fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T> From for T
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impl<T> From for T
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more