pub enum Type {
Show 24 variants UInt8, Int8, UInt16, Int16, UInt32, Int32, UInt64, Int64, Float32, Float64, Boolean, String, Timestamp, Duration, Object(String), Record(String), Enum(String), Error(String), CallbackInterface(String), Optional(Box<Type>), Sequence(Box<Type>), Map(Box<Type>, Box<Type>), External { name: String, crate_name: String, }, Custom { name: String, builtin: Box<Type>, },
}
Expand description

Represents all the different high-level types that can be used in a component interface. At this level we identify user-defined types by name, without knowing any details of their internal structure apart from what type of thing they are (record, enum, etc).

Variants

UInt8

Int8

UInt16

Int16

UInt32

Int32

UInt64

Int64

Float32

Float64

Boolean

String

Timestamp

Duration

Object(String)

Record(String)

Enum(String)

Error(String)

CallbackInterface(String)

Optional(Box<Type>)

Sequence(Box<Type>)

Map(Box<Type>, Box<Type>)

External

Fields

name: String
crate_name: String

Custom

Fields

name: String
builtin: Box<Type>

Implementations

Get the canonical, unique-within-this-component name for a type.

When generating helper code for foreign language bindings, it’s sometimes useful to be able to name a particular type in order to e.g. call a helper function that is specific to that type. We support this by defining a naming convention where each type gets a unique canonical name, constructed recursively from the names of its component types (if any).

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Converts to this type from the input type.

When passing data across the FFI, each Type value will be lowered into a corresponding FFIType value. This conversion tells you which one.

Note that the conversion is one-way - given an FFIType, it is not in general possible to tell what the corresponding Type is that it’s being used to represent.

Converts to this type from the input type.

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

Restrict a value to a certain interval. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Compare self to key and return true if they are equal.

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.