Trait hdk::prelude::warrant::TryFrom

1.34.0 · source ·
pub trait TryFrom<T>: Sized {
    type Error;

    // Required method
    fn try_from(value: T) -> Result<Self, Self::Error>;
}
Expand description

Simple and safe type conversions that may fail in a controlled way under some circumstances. It is the reciprocal of TryInto.

This is useful when you are doing a type conversion that may trivially succeed but may also need special handling. For example, there is no way to convert an i64 into an i32 using the From trait, because an i64 may contain a value that an i32 cannot represent and so the conversion would lose data. This might be handled by truncating the i64 to an i32 or by simply returning i32::MAX, or by some other method. The From trait is intended for perfect conversions, so the TryFrom trait informs the programmer when a type conversion could go bad and lets them decide how to handle it.

Generic Implementations

  • TryFrom<T> for U implies TryInto<U> for T
  • try_from is reflexive, which means that TryFrom<T> for T is implemented and cannot fail – the associated Error type for calling T::try_from() on a value of type T is Infallible. When the ! type is stabilized Infallible and ! will be equivalent.

TryFrom<T> can be implemented as follows:

struct GreaterThanZero(i32);

impl TryFrom<i32> for GreaterThanZero {
    type Error = &'static str;

    fn try_from(value: i32) -> Result<Self, Self::Error> {
        if value <= 0 {
            Err("GreaterThanZero only accepts values greater than zero!")
        } else {
            Ok(GreaterThanZero(value))
        }
    }
}

Examples

As described, i32 implements TryFrom<i64>:

let big_number = 1_000_000_000_000i64;
// Silently truncates `big_number`, requires detecting
// and handling the truncation after the fact.
let smaller_number = big_number as i32;
assert_eq!(smaller_number, -727379968);

// Returns an error because `big_number` is too big to
// fit in an `i32`.
let try_smaller_number = i32::try_from(big_number);
assert!(try_smaller_number.is_err());

// Returns `Ok(3)`.
let try_successful_smaller_number = i32::try_from(3);
assert!(try_successful_smaller_number.is_ok());

Required Associated Types§

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type Error

The type returned in the event of a conversion error.

Required Methods§

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fn try_from(value: T) -> Result<Self, Self::Error>

Performs the conversion.

Object Safety§

This trait is not object safe.

Implementors§

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impl TryFrom<&Action> for SerializedBytes

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impl TryFrom<&ActionType> for SerializedBytes

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impl TryFrom<&ActivityRequest> for SerializedBytes

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impl TryFrom<&Details> for SerializedBytes

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impl TryFrom<&Entry> for SerializedBytes

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impl TryFrom<&EntryCreationAction> for SerializedBytes

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impl TryFrom<&EntryDefsCallbackResult> for SerializedBytes

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impl TryFrom<&EntryType> for SerializedBytes

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impl TryFrom<&EntryVisibility> for SerializedBytes

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impl TryFrom<&InitCallbackResult> for SerializedBytes

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impl TryFrom<&MigrateAgent> for SerializedBytes

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impl TryFrom<&MigrateAgentCallbackResult> for SerializedBytes

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impl TryFrom<&Op> for SerializedBytes

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impl TryFrom<&RecordEntry> for SerializedBytes

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impl TryFrom<&ValidateCallbackResult> for SerializedBytes

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impl TryFrom<&WeighInput> for SerializedBytes

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impl TryFrom<&ZomeCallResponse> for SerializedBytes

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impl TryFrom<&AnyDht> for SerializedBytes

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impl TryFrom<&AnyLinkable> for SerializedBytes

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impl TryFrom<&str> for Timestamp

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impl TryFrom<&()> for SerializedBytes

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impl TryFrom<&Anchor> for SerializedBytes

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impl TryFrom<&Component> for String

Restoring a String from a Component requires Vec<u8> to u32 to utf8 handling.

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impl TryFrom<&Component> for SerializedBytes

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impl TryFrom<&Path> for Anchor

Paths are more general than anchors so a path could be represented that is not a valid anchor. The obvious example would be a path of binary data that is not valid utf-8 strings or a path that is more than 2 levels deep.

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impl TryFrom<&Path> for SerializedBytes

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impl TryFrom<&TypedPath> for SerializedBytes

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impl TryFrom<&XSalsa20Poly1305Nonce> for SerializedBytes

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impl TryFrom<&AgentActivity> for SerializedBytes

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impl TryFrom<&AgentInfo> for SerializedBytes

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impl TryFrom<&AgentValidationPkg> for SerializedBytes

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impl TryFrom<&AppEntryDef> for SerializedBytes

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impl TryFrom<&CapClaim> for SerializedBytes

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impl TryFrom<&CapSecret> for SerializedBytes

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impl TryFrom<&CellId> for SerializedBytes

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impl TryFrom<&ChainFilter> for SerializedBytes

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impl TryFrom<&ChainQueryFilter> for SerializedBytes

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impl TryFrom<&CloseChain> for SerializedBytes

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impl TryFrom<&Create> for SerializedBytes

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impl TryFrom<&CreateInput> for SerializedBytes

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impl TryFrom<&CreateLink> for SerializedBytes

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impl TryFrom<&Delete> for SerializedBytes

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impl TryFrom<&DeleteAction> for SerializedBytes

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impl TryFrom<&DeleteLink> for SerializedBytes

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impl TryFrom<&DeterministicGetAgentActivityFilter> for SerializedBytes

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impl TryFrom<&Dna> for SerializedBytes

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impl TryFrom<&DnaDef> for SerializedBytes

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impl TryFrom<&EntryDefIndex> for SerializedBytes

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impl TryFrom<&EntryDetails> for SerializedBytes

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impl TryFrom<&EntryHashes> for SerializedBytes

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impl TryFrom<&EntryRateWeight> for SerializedBytes

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impl TryFrom<&GenesisSelfCheckDataV1> for SerializedBytes

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impl TryFrom<&GenesisSelfCheckDataV2> for SerializedBytes

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impl TryFrom<&InitZomesComplete> for SerializedBytes

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impl TryFrom<&Link> for SerializedBytes

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impl TryFrom<&LinkDetails> for SerializedBytes

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impl TryFrom<&LinkQuery> for SerializedBytes

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impl TryFrom<&LinkTag> for SerializedBytes

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impl TryFrom<&LinkType> for SerializedBytes

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impl TryFrom<&OpenChain> for SerializedBytes

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impl TryFrom<&RateWeight> for SerializedBytes

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impl TryFrom<&Record> for SerializedBytes

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impl TryFrom<&RecordDetails> for SerializedBytes

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impl TryFrom<&RegisterAgentActivity> for SerializedBytes

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impl TryFrom<&RegisterCreateLink> for SerializedBytes

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impl TryFrom<&RegisterDelete> for SerializedBytes

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impl TryFrom<&RegisterDeleteLink> for SerializedBytes

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impl TryFrom<&RegisterUpdate> for SerializedBytes

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impl TryFrom<&RemoteSignal> for SerializedBytes

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impl TryFrom<&ScopedZomeTypesSet> for SerializedBytes

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impl TryFrom<&Sign> for SerializedBytes

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impl TryFrom<&SignedAction> for SerializedBytes

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impl TryFrom<&StoreEntry> for SerializedBytes

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impl TryFrom<&StoreRecord> for SerializedBytes

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impl TryFrom<&Timestamp> for DateTime<Utc>

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impl TryFrom<&Update> for SerializedBytes

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impl TryFrom<&UpdateAction> for SerializedBytes

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impl TryFrom<&VerifySignature> for SerializedBytes

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impl TryFrom<&Warrant> for SerializedBytes

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impl TryFrom<&X25519PubKey> for SerializedBytes

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impl TryFrom<&X25519XSalsa20Poly1305Decrypt> for SerializedBytes

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impl TryFrom<&X25519XSalsa20Poly1305Encrypt> for SerializedBytes

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impl TryFrom<&XSalsa20Poly1305Decrypt> for SerializedBytes

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impl TryFrom<&XSalsa20Poly1305Encrypt> for SerializedBytes

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impl TryFrom<&XSalsa20Poly1305KeyRef> for SerializedBytes

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impl TryFrom<&XSalsa20Poly1305SharedSecretExport> for SerializedBytes

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impl TryFrom<&XSalsa20Poly1305SharedSecretIngest> for SerializedBytes

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impl TryFrom<&ZomeIndex> for SerializedBytes

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impl TryFrom<&ZomeInfo> for SerializedBytes

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impl TryFrom<&String> for Timestamp

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impl TryFrom<&[u8]> for XSalsa20Poly1305Nonce

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impl TryFrom<&[u8]> for CapSecret

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impl TryFrom<&[u8]> for Hash256Bits

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impl TryFrom<&[u8]> for Hash512Bits

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impl TryFrom<&[u8]> for Nonce256Bits

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impl TryFrom<&[u8]> for Signature

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impl TryFrom<&[u8]> for X25519PubKey

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impl TryFrom<Action> for EntryCreationAction

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impl TryFrom<Action> for Delete

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impl TryFrom<Action> for Update

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impl TryFrom<Action> for SerializedBytes

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impl TryFrom<ActionType> for SerializedBytes

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impl TryFrom<ActivityRequest> for SerializedBytes

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impl TryFrom<Details> for SerializedBytes

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impl TryFrom<Entry> for SerializedBytes

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impl TryFrom<EntryCreationAction> for SerializedBytes

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impl TryFrom<EntryDefsCallbackResult> for SerializedBytes

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impl TryFrom<EntryType> for SerializedBytes

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impl TryFrom<EntryVisibility> for SerializedBytes

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impl TryFrom<InitCallbackResult> for SerializedBytes

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impl TryFrom<MigrateAgent> for SerializedBytes

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impl TryFrom<MigrateAgentCallbackResult> for SerializedBytes

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impl TryFrom<Op> for SerializedBytes

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impl TryFrom<RecordEntry> for SerializedBytes

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impl TryFrom<ValidateCallbackResult> for SerializedBytes

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impl TryFrom<WeighInput> for SerializedBytes

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impl TryFrom<ZomeCallResponse> for SerializedBytes

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impl TryFrom<AnyDht> for SerializedBytes

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impl TryFrom<AnyLinkable> for SerializedBytes

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impl TryFrom<char> for u8

Maps a char with code point in U+0000..=U+00FF to a byte in 0x00..=0xFF with same value, failing if the code point is greater than U+00FF.

See impl From<u8> for char for details on the encoding.

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impl TryFrom<char> for u16

Maps a char with code point in U+0000..=U+FFFF to a u16 in 0x0000..=0xFFFF with same value, failing if the code point is greater than U+FFFF.

This corresponds to the UCS-2 encoding, as specified in ISO/IEC 10646:2003.

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impl TryFrom<i8> for u8

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impl TryFrom<i8> for u16

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impl TryFrom<i8> for u32

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impl TryFrom<i8> for u64

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impl TryFrom<i8> for u128

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impl TryFrom<i8> for usize

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impl TryFrom<i8> for NonZeroI8

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impl TryFrom<i16> for i8

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impl TryFrom<i16> for u8

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impl TryFrom<i16> for u16

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impl TryFrom<i16> for u32

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impl TryFrom<i16> for u64

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impl TryFrom<i16> for u128

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impl TryFrom<i16> for usize

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impl TryFrom<i16> for NonZeroI16

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impl TryFrom<i32> for i8

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impl TryFrom<i32> for i16

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impl TryFrom<i32> for isize

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impl TryFrom<i32> for u8

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impl TryFrom<i32> for u16

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impl TryFrom<i32> for u32

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impl TryFrom<i32> for u64

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impl TryFrom<i32> for u128

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impl TryFrom<i32> for usize

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impl TryFrom<i32> for NonZeroI32

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impl TryFrom<i64> for i8

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impl TryFrom<i64> for i16

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impl TryFrom<i64> for i32

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impl TryFrom<i64> for isize

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impl TryFrom<i64> for u8

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impl TryFrom<i64> for u16

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impl TryFrom<i64> for u32

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impl TryFrom<i64> for u64

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impl TryFrom<i64> for u128

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impl TryFrom<i64> for usize

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impl TryFrom<i64> for NonZeroI64

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impl TryFrom<i128> for i8

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impl TryFrom<i128> for i16

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impl TryFrom<i128> for i32

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impl TryFrom<i128> for i64

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impl TryFrom<i128> for isize

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impl TryFrom<i128> for u8

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impl TryFrom<i128> for u16

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impl TryFrom<i128> for u32

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impl TryFrom<i128> for u64

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impl TryFrom<i128> for u128

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impl TryFrom<i128> for usize

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impl TryFrom<i128> for NonZeroI128

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impl TryFrom<isize> for i8

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impl TryFrom<isize> for i16

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impl TryFrom<isize> for i32

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impl TryFrom<isize> for i64

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impl TryFrom<isize> for i128

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impl TryFrom<isize> for u8

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impl TryFrom<isize> for u16

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impl TryFrom<isize> for u32

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impl TryFrom<isize> for u64

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impl TryFrom<isize> for u128

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impl TryFrom<isize> for usize

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impl TryFrom<isize> for NonZeroIsize

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impl TryFrom<u8> for Month

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impl TryFrom<u8> for Weekday

Any weekday can be represented as an integer from 0 to 6, which equals to Weekday::num_days_from_monday in this implementation. Do not heavily depend on this though; use explicit methods whenever possible.

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impl TryFrom<u8> for i8

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impl TryFrom<u8> for NonZeroU8

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impl TryFrom<u16> for i8

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impl TryFrom<u16> for i16

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impl TryFrom<u16> for isize

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impl TryFrom<u16> for u8

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impl TryFrom<u16> for NonZeroU16

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impl TryFrom<u16> for Opcode

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type Error = ()

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impl TryFrom<u32> for char

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impl TryFrom<u32> for i8

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impl TryFrom<u32> for i16

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impl TryFrom<u32> for i32

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impl TryFrom<u32> for isize

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impl TryFrom<u32> for u8

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impl TryFrom<u32> for u16

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impl TryFrom<u32> for usize

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impl TryFrom<u32> for NonZeroU32

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impl TryFrom<u64> for i8

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impl TryFrom<u64> for i16

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impl TryFrom<u64> for i32

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impl TryFrom<u64> for i64

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impl TryFrom<u64> for isize

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impl TryFrom<u64> for u8

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impl TryFrom<u64> for u16

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impl TryFrom<u64> for u32

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impl TryFrom<u64> for usize

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impl TryFrom<u64> for NonZeroU64

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impl TryFrom<u128> for i8

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impl TryFrom<u128> for i16

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impl TryFrom<u128> for i32

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impl TryFrom<u128> for i64

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impl TryFrom<u128> for i128

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impl TryFrom<u128> for isize

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impl TryFrom<u128> for u8

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impl TryFrom<u128> for u16

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impl TryFrom<u128> for u32

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impl TryFrom<u128> for u64

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impl TryFrom<u128> for usize

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impl TryFrom<u128> for NonZeroU128

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impl TryFrom<()> for SerializedBytes

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impl TryFrom<usize> for i8

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impl TryFrom<usize> for i16

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impl TryFrom<usize> for i32

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impl TryFrom<usize> for i64

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impl TryFrom<usize> for i128

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impl TryFrom<usize> for isize

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impl TryFrom<usize> for u8

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impl TryFrom<usize> for u16

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impl TryFrom<usize> for u32

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impl TryFrom<usize> for u64

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impl TryFrom<usize> for u128

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impl TryFrom<usize> for NonZeroUsize

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impl TryFrom<usize> for Alignment

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impl TryFrom<Anchor> for SerializedBytes

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impl TryFrom<Component> for SerializedBytes

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impl TryFrom<Path> for SerializedBytes

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impl TryFrom<TypedPath> for SerializedBytes

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impl TryFrom<XSalsa20Poly1305Nonce> for SerializedBytes

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impl TryFrom<AgentActivity> for SerializedBytes

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impl TryFrom<AgentInfo> for SerializedBytes

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impl TryFrom<AgentValidationPkg> for SerializedBytes

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impl TryFrom<AppEntryDef> for SerializedBytes

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impl TryFrom<CapClaim> for SerializedBytes

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impl TryFrom<CapSecret> for SerializedBytes

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impl TryFrom<CellId> for SerializedBytes

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impl TryFrom<ChainFilter> for SerializedBytes

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impl TryFrom<ChainQueryFilter> for SerializedBytes

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impl TryFrom<CloseChain> for SerializedBytes

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impl TryFrom<Create> for SerializedBytes

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impl TryFrom<CreateInput> for SerializedBytes

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impl TryFrom<CreateLink> for SerializedBytes

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impl TryFrom<Delete> for SerializedBytes

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impl TryFrom<DeleteAction> for SerializedBytes

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impl TryFrom<DeleteLink> for SerializedBytes

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impl TryFrom<DeterministicGetAgentActivityFilter> for SerializedBytes

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impl TryFrom<Dna> for SerializedBytes

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impl TryFrom<DnaDef> for SerializedBytes

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impl TryFrom<EntryDefIndex> for SerializedBytes

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impl TryFrom<EntryDetails> for SerializedBytes

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impl TryFrom<EntryHashes> for SerializedBytes

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impl TryFrom<EntryRateWeight> for SerializedBytes

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impl TryFrom<GenesisSelfCheckDataV1> for SerializedBytes

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impl TryFrom<GenesisSelfCheckDataV2> for SerializedBytes

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impl TryFrom<HoloHash<AnyDht>> for HoloHash<Action>

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impl TryFrom<HoloHash<AnyDht>> for HoloHash<Agent>

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impl TryFrom<HoloHash<AnyDht>> for HoloHash<Entry>

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impl TryFrom<HoloHash<AnyLinkable>> for HoloHash<AnyDht>

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impl TryFrom<HoloHash<AnyLinkable>> for HoloHash<Action>

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impl TryFrom<HoloHash<AnyLinkable>> for HoloHash<Agent>

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impl TryFrom<HoloHash<AnyLinkable>> for HoloHash<Entry>

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impl TryFrom<HoloHash<AnyLinkable>> for HoloHash<External>

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impl TryFrom<InitZomesComplete> for SerializedBytes

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impl TryFrom<Link> for SerializedBytes

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impl TryFrom<LinkDetails> for SerializedBytes

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impl TryFrom<LinkQuery> for SerializedBytes

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impl TryFrom<LinkTag> for SerializedBytes

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impl TryFrom<LinkType> for SerializedBytes

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impl TryFrom<OpenChain> for SerializedBytes

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impl TryFrom<RateWeight> for SerializedBytes

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impl TryFrom<Record> for SerializedBytes

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impl TryFrom<RecordDetails> for SerializedBytes

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impl TryFrom<RegisterAgentActivity> for SerializedBytes

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impl TryFrom<RegisterCreateLink> for SerializedBytes

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impl TryFrom<RegisterDelete> for SerializedBytes

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impl TryFrom<RegisterDeleteLink> for SerializedBytes

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impl TryFrom<RegisterUpdate> for SerializedBytes

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impl TryFrom<RemoteSignal> for SerializedBytes

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impl TryFrom<ScopedZomeTypesSet> for SerializedBytes

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impl TryFrom<Sign> for SerializedBytes

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impl TryFrom<SignedAction> for SerializedBytes

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impl TryFrom<StoreEntry> for SerializedBytes

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impl TryFrom<StoreRecord> for SerializedBytes

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impl TryFrom<Timestamp> for DateTime<Utc>

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impl TryFrom<Update> for SerializedBytes

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impl TryFrom<UpdateAction> for SerializedBytes

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impl TryFrom<VerifySignature> for SerializedBytes

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impl TryFrom<Warrant> for SerializedBytes

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impl TryFrom<X25519PubKey> for SerializedBytes

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impl TryFrom<X25519XSalsa20Poly1305Decrypt> for SerializedBytes

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impl TryFrom<X25519XSalsa20Poly1305Encrypt> for SerializedBytes

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impl TryFrom<XSalsa20Poly1305Decrypt> for SerializedBytes

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impl TryFrom<XSalsa20Poly1305Encrypt> for SerializedBytes

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impl TryFrom<XSalsa20Poly1305KeyRef> for SerializedBytes

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impl TryFrom<XSalsa20Poly1305SharedSecretExport> for SerializedBytes

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impl TryFrom<XSalsa20Poly1305SharedSecretIngest> for SerializedBytes

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impl TryFrom<ZomeIndex> for SerializedBytes

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impl TryFrom<ZomeInfo> for SerializedBytes

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impl TryFrom<String> for CloneId

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impl TryFrom<String> for Timestamp

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impl TryFrom<Vec<u8>> for XSalsa20Poly1305Nonce

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impl TryFrom<Vec<u8>> for CapSecret

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impl TryFrom<Vec<u8>> for Hash256Bits

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impl TryFrom<Vec<u8>> for Hash512Bits

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impl TryFrom<Vec<u8>> for Nonce256Bits

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impl TryFrom<Vec<u8>> for Signature

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impl TryFrom<Vec<u8>> for X25519PubKey

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impl TryFrom<NonZeroI8> for NonZeroU8

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impl TryFrom<NonZeroI8> for NonZeroU16

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impl TryFrom<NonZeroI8> for NonZeroU32

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impl TryFrom<NonZeroI8> for NonZeroU64

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impl TryFrom<NonZeroI8> for NonZeroU128

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impl TryFrom<NonZeroI8> for NonZeroUsize

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impl TryFrom<NonZeroI16> for NonZeroI8

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impl TryFrom<NonZeroI16> for NonZeroU8

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impl TryFrom<NonZeroI16> for NonZeroU16

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impl TryFrom<NonZeroI16> for NonZeroU32

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impl TryFrom<NonZeroI16> for NonZeroU64

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impl TryFrom<NonZeroI16> for NonZeroU128

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impl TryFrom<NonZeroI16> for NonZeroUsize

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impl TryFrom<NonZeroI32> for NonZeroI8

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impl TryFrom<NonZeroI32> for NonZeroI16

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impl TryFrom<NonZeroI32> for NonZeroIsize

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impl TryFrom<NonZeroI32> for NonZeroU8

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impl TryFrom<NonZeroI32> for NonZeroU16

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impl TryFrom<NonZeroI32> for NonZeroU32

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impl TryFrom<NonZeroI32> for NonZeroU64

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impl TryFrom<NonZeroI32> for NonZeroU128

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impl TryFrom<NonZeroI32> for NonZeroUsize

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impl TryFrom<NonZeroI64> for NonZeroI8

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impl TryFrom<NonZeroI64> for NonZeroI16

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impl TryFrom<NonZeroI64> for NonZeroI32

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impl TryFrom<NonZeroI64> for NonZeroIsize

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impl TryFrom<NonZeroI64> for NonZeroU8

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impl TryFrom<NonZeroI64> for NonZeroU16

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impl TryFrom<NonZeroI64> for NonZeroU32

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impl TryFrom<NonZeroI64> for NonZeroU64

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impl TryFrom<NonZeroI64> for NonZeroU128

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impl TryFrom<NonZeroI64> for NonZeroUsize

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impl TryFrom<NonZeroI128> for NonZeroI8

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impl TryFrom<NonZeroI128> for NonZeroI16

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impl TryFrom<NonZeroI128> for NonZeroI32

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impl TryFrom<NonZeroI128> for NonZeroI64

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impl TryFrom<NonZeroI128> for NonZeroIsize

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impl TryFrom<NonZeroI128> for NonZeroU8

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impl TryFrom<NonZeroI128> for NonZeroU16

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impl TryFrom<NonZeroI128> for NonZeroU32

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impl TryFrom<NonZeroI128> for NonZeroU64

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impl TryFrom<NonZeroI128> for NonZeroU128

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impl TryFrom<NonZeroI128> for NonZeroUsize

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impl TryFrom<NonZeroIsize> for NonZeroI8

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impl TryFrom<NonZeroIsize> for NonZeroI16

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impl TryFrom<NonZeroIsize> for NonZeroI32

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impl TryFrom<NonZeroIsize> for NonZeroI64

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impl TryFrom<NonZeroIsize> for NonZeroI128

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impl TryFrom<NonZeroIsize> for NonZeroU8

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impl TryFrom<NonZeroIsize> for NonZeroU16

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impl TryFrom<NonZeroIsize> for NonZeroU32

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impl TryFrom<NonZeroIsize> for NonZeroU64

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impl TryFrom<NonZeroIsize> for NonZeroU128

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impl TryFrom<NonZeroIsize> for NonZeroUsize

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impl TryFrom<NonZeroU8> for NonZeroI8

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impl TryFrom<NonZeroU16> for NonZeroI8

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impl TryFrom<NonZeroU16> for NonZeroI16

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impl TryFrom<NonZeroU16> for NonZeroIsize

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impl TryFrom<NonZeroU16> for NonZeroU8

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impl TryFrom<NonZeroU32> for NonZeroI8

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impl TryFrom<NonZeroU32> for NonZeroI16

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impl TryFrom<NonZeroU32> for NonZeroI32

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impl TryFrom<NonZeroU32> for NonZeroIsize

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impl TryFrom<NonZeroU32> for NonZeroU8

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impl TryFrom<NonZeroU32> for NonZeroU16

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impl TryFrom<NonZeroU32> for NonZeroUsize

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impl TryFrom<NonZeroU32> for Opcode

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type Error = ()

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impl TryFrom<NonZeroU64> for NonZeroI8

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impl TryFrom<NonZeroU64> for NonZeroI16

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impl TryFrom<NonZeroU64> for NonZeroI32

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impl TryFrom<NonZeroU64> for NonZeroI64

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impl TryFrom<NonZeroU64> for NonZeroIsize

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impl TryFrom<NonZeroU64> for NonZeroU8

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impl TryFrom<NonZeroU64> for NonZeroU16

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impl TryFrom<NonZeroU64> for NonZeroU32

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impl TryFrom<NonZeroU64> for NonZeroUsize

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impl TryFrom<NonZeroU128> for NonZeroI8

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impl TryFrom<NonZeroU128> for NonZeroI16

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impl TryFrom<NonZeroU128> for NonZeroI32

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impl TryFrom<NonZeroU128> for NonZeroI64

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impl TryFrom<NonZeroU128> for NonZeroI128

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impl TryFrom<NonZeroU128> for NonZeroIsize

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impl TryFrom<NonZeroU128> for NonZeroU8

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impl TryFrom<NonZeroU128> for NonZeroU16

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impl TryFrom<NonZeroU128> for NonZeroU32

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impl TryFrom<NonZeroU128> for NonZeroU64

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impl TryFrom<NonZeroU128> for NonZeroUsize

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impl TryFrom<NonZeroUsize> for NonZeroI8

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impl TryFrom<NonZeroUsize> for NonZeroI16

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impl TryFrom<NonZeroUsize> for NonZeroI32

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impl TryFrom<NonZeroUsize> for NonZeroI64

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impl TryFrom<NonZeroUsize> for NonZeroI128

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impl TryFrom<NonZeroUsize> for NonZeroIsize

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impl TryFrom<NonZeroUsize> for NonZeroU8

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impl TryFrom<NonZeroUsize> for NonZeroU16

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impl TryFrom<NonZeroUsize> for NonZeroU32

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impl TryFrom<NonZeroUsize> for NonZeroU64

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impl TryFrom<NonZeroUsize> for NonZeroU128

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impl TryFrom<NonZeroUsize> for Alignment

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impl TryFrom<Duration> for Timestamp

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impl TryFrom<SerializedBytes> for Action

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impl TryFrom<SerializedBytes> for ActionType

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impl TryFrom<SerializedBytes> for ActivityRequest

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impl TryFrom<SerializedBytes> for Details

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impl TryFrom<SerializedBytes> for Entry

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impl TryFrom<SerializedBytes> for EntryCreationAction

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impl TryFrom<SerializedBytes> for EntryDefsCallbackResult

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impl TryFrom<SerializedBytes> for EntryType

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impl TryFrom<SerializedBytes> for EntryVisibility

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impl TryFrom<SerializedBytes> for InitCallbackResult

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impl TryFrom<SerializedBytes> for MigrateAgent

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impl TryFrom<SerializedBytes> for MigrateAgentCallbackResult

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impl TryFrom<SerializedBytes> for Op

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impl TryFrom<SerializedBytes> for RecordEntry

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impl TryFrom<SerializedBytes> for ValidateCallbackResult

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impl TryFrom<SerializedBytes> for WeighInput

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impl TryFrom<SerializedBytes> for ZomeCallResponse

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impl TryFrom<SerializedBytes> for AnyDht

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impl TryFrom<SerializedBytes> for AnyLinkable

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impl TryFrom<SerializedBytes> for ()

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impl TryFrom<SerializedBytes> for Anchor

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impl TryFrom<SerializedBytes> for Component

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impl TryFrom<SerializedBytes> for Path

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impl TryFrom<SerializedBytes> for TypedPath

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impl TryFrom<SerializedBytes> for XSalsa20Poly1305Nonce

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impl TryFrom<SerializedBytes> for AgentActivity

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impl TryFrom<SerializedBytes> for AgentInfo

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impl TryFrom<SerializedBytes> for AgentValidationPkg

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impl TryFrom<SerializedBytes> for AppEntryBytes

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impl TryFrom<SerializedBytes> for AppEntryDef

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impl TryFrom<SerializedBytes> for CapClaim

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impl TryFrom<SerializedBytes> for CapSecret

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impl TryFrom<SerializedBytes> for CellId

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impl TryFrom<SerializedBytes> for ChainFilter

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impl TryFrom<SerializedBytes> for ChainQueryFilter

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impl TryFrom<SerializedBytes> for CloseChain

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impl TryFrom<SerializedBytes> for Create

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impl TryFrom<SerializedBytes> for CreateInput

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impl TryFrom<SerializedBytes> for Delete

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impl TryFrom<SerializedBytes> for DeleteAction

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impl TryFrom<SerializedBytes> for DeterministicGetAgentActivityFilter

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impl TryFrom<SerializedBytes> for Dna

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impl TryFrom<SerializedBytes> for DnaDef

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impl TryFrom<SerializedBytes> for EntryDefIndex

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impl TryFrom<SerializedBytes> for EntryDetails

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impl TryFrom<SerializedBytes> for EntryHashes

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impl TryFrom<SerializedBytes> for EntryRateWeight

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impl TryFrom<SerializedBytes> for GenesisSelfCheckDataV1

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impl TryFrom<SerializedBytes> for GenesisSelfCheckDataV2

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impl TryFrom<SerializedBytes> for InitZomesComplete

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impl TryFrom<SerializedBytes> for LinkDetails

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impl TryFrom<SerializedBytes> for LinkQuery

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impl TryFrom<SerializedBytes> for LinkTag

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impl TryFrom<SerializedBytes> for LinkType

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impl TryFrom<SerializedBytes> for OpenChain

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impl TryFrom<SerializedBytes> for RateWeight

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impl TryFrom<SerializedBytes> for Record

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impl TryFrom<SerializedBytes> for RecordDetails

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impl TryFrom<SerializedBytes> for RegisterAgentActivity

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impl TryFrom<SerializedBytes> for RegisterDelete

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impl TryFrom<SerializedBytes> for RegisterUpdate

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impl TryFrom<SerializedBytes> for RemoteSignal

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impl TryFrom<SerializedBytes> for ScopedZomeTypesSet

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impl TryFrom<SerializedBytes> for Sign

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impl TryFrom<SerializedBytes> for SignedAction

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impl TryFrom<SerializedBytes> for StoreEntry

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impl TryFrom<SerializedBytes> for StoreRecord

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impl TryFrom<SerializedBytes> for Update

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impl TryFrom<SerializedBytes> for UpdateAction

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impl TryFrom<SerializedBytes> for VerifySignature

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impl TryFrom<SerializedBytes> for Warrant

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impl TryFrom<SerializedBytes> for X25519PubKey

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impl TryFrom<SerializedBytes> for X25519XSalsa20Poly1305Decrypt

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impl TryFrom<SerializedBytes> for X25519XSalsa20Poly1305Encrypt

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impl TryFrom<SerializedBytes> for XSalsa20Poly1305Decrypt

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impl TryFrom<SerializedBytes> for XSalsa20Poly1305Encrypt

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impl TryFrom<SerializedBytes> for XSalsa20Poly1305KeyRef

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impl TryFrom<SerializedBytes> for XSalsa20Poly1305SharedSecretExport

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impl TryFrom<SerializedBytes> for XSalsa20Poly1305SharedSecretIngest

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impl TryFrom<SerializedBytes> for ZomeIndex

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impl TryFrom<SerializedBytes> for ZomeInfo

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impl TryFrom<Bytes> for Pages

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type Error = PageCountOutOfRange

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impl<'a> TryFrom<&'a Action> for &'a Delete

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impl<'a> TryFrom<&'a Action> for &'a Update

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impl<'a> TryFrom<&'a OsStr> for &'a str

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impl<'a> TryFrom<&'a SerializedBytes> for SerializedBytes

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impl<'a, T, const N: usize> TryFrom<&'a [T]> for &'a [T; N]

Tries to create an array ref &[T; N] from a slice ref &[T]. Succeeds if slice.len() == N.

let bytes: [u8; 3] = [1, 0, 2];

let bytes_head: &[u8; 2] = <&[u8; 2]>::try_from(&bytes[0..2]).unwrap();
assert_eq!(1, u16::from_le_bytes(*bytes_head));

let bytes_tail: &[u8; 2] = bytes[1..3].try_into().unwrap();
assert_eq!(512, u16::from_le_bytes(*bytes_tail));
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impl<'a, T, const N: usize> TryFrom<&'a mut [T]> for &'a mut [T; N]

Tries to create a mutable array ref &mut [T; N] from a mutable slice ref &mut [T]. Succeeds if slice.len() == N.

let mut bytes: [u8; 3] = [1, 0, 2];

let bytes_head: &mut [u8; 2] = <&mut [u8; 2]>::try_from(&mut bytes[0..2]).unwrap();
assert_eq!(1, u16::from_le_bytes(*bytes_head));

let bytes_tail: &mut [u8; 2] = (&mut bytes[1..3]).try_into().unwrap();
assert_eq!(512, u16::from_le_bytes(*bytes_tail));
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impl<A> TryFrom<&[<A as Array>::Item]> for ArrayVec<A>where A: Array, <A as Array>::Item: Clone,

Try to create an ArrayVec from a slice. This will return an error if the slice was too big to fit.

use arrayvec::ArrayVec;
use std::convert::TryInto as _;

let array: ArrayVec<[_; 4]> = (&[1, 2, 3] as &[_]).try_into().unwrap();
assert_eq!(array.len(), 3);
assert_eq!(array.capacity(), 4);
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impl<P> TryFrom<&str> for HoloHash<P>where P: PrimitiveHashType,

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impl<P> TryFrom<&String> for HoloHash<P>where P: PrimitiveHashType,

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impl<P> TryFrom<String> for HoloHash<P>where P: PrimitiveHashType,

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impl<T> TryFrom<&HoloHash<T>> for SerializedByteswhere T: HashType,

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impl<T> TryFrom<HoloHash<T>> for SerializedByteswhere T: HashType,

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impl<T> TryFrom<SerializedBytes> for HoloHash<T>where T: HashType,

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impl<T> TryFrom<Value<T>> for f32where T: WasmValueType,

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type Error = &'static str

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impl<T> TryFrom<Value<T>> for f64where T: WasmValueType,

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type Error = &'static str

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impl<T> TryFrom<Value<T>> for i32where T: WasmValueType,

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type Error = &'static str

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impl<T> TryFrom<Value<T>> for i64where T: WasmValueType,

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type Error = &'static str

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impl<T> TryFrom<Value<T>> for u32where T: WasmValueType,

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type Error = &'static str

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impl<T> TryFrom<Value<T>> for u64where T: WasmValueType,

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type Error = &'static str

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impl<T, A, const N: usize> TryFrom<Arc<[T], A>> for Arc<[T; N], A>where A: Allocator + Clone,

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type Error = Arc<[T], A>

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impl<T, A, const N: usize> TryFrom<Vec<T, A>> for [T; N]where A: Allocator,

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type Error = Vec<T, A>

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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impl<T, const N: usize> TryFrom<&[T]> for [T; N]where T: Copy,

Tries to create an array [T; N] by copying from a slice &[T]. Succeeds if slice.len() == N.

let bytes: [u8; 3] = [1, 0, 2];

let bytes_head: [u8; 2] = <[u8; 2]>::try_from(&bytes[0..2]).unwrap();
assert_eq!(1, u16::from_le_bytes(bytes_head));

let bytes_tail: [u8; 2] = bytes[1..3].try_into().unwrap();
assert_eq!(512, u16::from_le_bytes(bytes_tail));
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impl<T, const N: usize> TryFrom<&[T]> for Simd<T, N>where LaneCount<N>: SupportedLaneCount, T: SimdElement,

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impl<T, const N: usize> TryFrom<&mut [T]> for [T; N]where T: Copy,

Tries to create an array [T; N] by copying from a mutable slice &mut [T]. Succeeds if slice.len() == N.

let mut bytes: [u8; 3] = [1, 0, 2];

let bytes_head: [u8; 2] = <[u8; 2]>::try_from(&mut bytes[0..2]).unwrap();
assert_eq!(1, u16::from_le_bytes(bytes_head));

let bytes_tail: [u8; 2] = (&mut bytes[1..3]).try_into().unwrap();
assert_eq!(512, u16::from_le_bytes(bytes_tail));
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impl<T, const N: usize> TryFrom<&mut [T]> for Simd<T, N>where LaneCount<N>: SupportedLaneCount, T: SimdElement,

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impl<T, const N: usize> TryFrom<Box<[T]>> for Box<[T; N]>

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type Error = Box<[T]>

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impl<T, const N: usize> TryFrom<Rc<[T]>> for Rc<[T; N]>

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type Error = Rc<[T]>

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impl<T, const N: usize> TryFrom<Vec<T>> for Box<[T; N]>

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type Error = Vec<T>