[−][src]Enum bcder::decode::Content
The content octets of a BER-encoded value.
A value is either primitive, containing actual octets of an actual value, or constructed, in which case its content contains additional BER encoded values. This enum is useful for cases where a certain type may be encoded as either a primitive value or a complex constructed value.
Note that this type represents the content octets only, i.e., it does not contain the tag of the value.
Variants
Primitive(Primitive<'a, S>)
The value is a primitive value.
Constructed(Constructed<'a, S>)
The value is a constructed value.
Methods
impl<'a, S: Source + 'a> Content<'a, S>
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pub fn mode(&self) -> Mode
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Returns the encoding mode used by the value.
pub fn is_primitive(&self) -> bool
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Returns whether this value is a primitive value.
pub fn is_constructed(&self) -> bool
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Returns whether this value is a constructed value.
pub fn as_primitive(&mut self) -> Result<&mut Primitive<'a, S>, S::Err>
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Converts a reference into into one to a primitive value or errors out.
pub fn as_constructed(&mut self) -> Result<&mut Constructed<'a, S>, S::Err>
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Converts a reference into on to a constructed value or errors out.
impl<'a, S: Source + 'a> Content<'a, S>
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pub fn to_u8(&mut self) -> Result<u8, S::Err>
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Converts content into a u8
.
If the content is not primitive or does not contain a single BER encoded INTEGER value between 0 and 256, returns a malformed error.
pub fn skip_u8_if(&mut self, expected: u8) -> Result<(), S::Err>
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Skips over the content if it contains an INTEGER of value expected
.
The content needs to be primitive and contain a validly encoded
integer of value expected
or else a malformed error will be
returned.
pub fn to_u16(&mut self) -> Result<u16, S::Err>
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Converts content into a u16
.
If the content is not primitive or does not contain a single BER encoded INTEGER value between 0 and 2^16-1, returns a malformed error.
pub fn to_u32(&mut self) -> Result<u32, S::Err>
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Converts content into a u32
.
If the content is not primitive or does not contain a single BER encoded INTEGER value between 0 and 2^32-1, returns a malformed error.
pub fn to_u64(&mut self) -> Result<u64, S::Err>
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Converts content into a u64
.
If the content is not primitive or does not contain a single BER encoded INTEGER value between 0 and 2^64-1, returns a malformed error.
pub fn to_null(&mut self) -> Result<(), S::Err>
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Converts the content into a NULL value.
If the content isn’t primitive and contains a single BER encoded NULL value (i.e., nothing), returns a malformed error.
Auto Trait Implementations
impl<'a, S> RefUnwindSafe for Content<'a, S> where
S: RefUnwindSafe,
S: RefUnwindSafe,
impl<'a, S> Send for Content<'a, S> where
S: Send,
S: Send,
impl<'a, S> Sync for Content<'a, S> where
S: Sync,
S: Sync,
impl<'a, S> Unpin for Content<'a, S>
impl<'a, S> !UnwindSafe for Content<'a, S>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
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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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,