element type

is this element open, i.e., can it be mutated?

length of the array to create

add an element at the end of this array

amortized O(1) but worst case of O(n)

create immutable array from this

create immutable array of length len from this

create a list from this array

string representation of this buffer's contents

stop any further mutations of this element

does this array contain elem?

dynamic_apply -- apply `f.call` to `Any.this`'s dynamic type and value

This can be used to perform operation on values depending on their dynamic
type.

Here is an example that takes a `Sequence Any` that may contain boxed values
of types `i32` and `f64`. We can now write a feature `get_f64` that extracts
these values converted to `f64` and build a function `sum` that sums them up
as follows:

Get the dynamic type of this instance. For value instances `x`, this is
equal to `type_of x`, but for `x` with a `ref` type `x.dynamic_type` gives
the actual runtime type, while `type_of x` results in the static
compile-time type.

There is no dynamic type of a type instance since this would result in an
endless hierarchy of types. So for Type values, dynamic_type is redefined
to just return Type.type.

get element at given index i

set element at given index i to given value o

a sequence of all valid indices to access this array. Useful e.g., for
`for`-loops:

A mutable array might be inaccessible if we are running in a thread that is
not permitted by the underlying mutate instance to access its mutable elements
at this point. See `blocking_mutate` and `mutate.exclusive`.

is this array empty?

convenience prefix operator to create a string from a value.

This permits usage of `$` as a prefix operator in a similar way both
inside and outside of constant strings: $x and "$x" will produce the
same string.

remove the last element of the this array

amortized O(1) but worst case of O(n)

string representation of this type to be used for debugging.

result has the form "Type of '<name>'", but this might change in the future

There is no dynamic type of a type instance since this would result in an
endless hierarchy of types, so dynamic_type is redefined to just return
Type.type here.

initialize an empty mutable array of type T

initialize an empty mutable array of type T, that won't shrink below the minimum size
min_length must be multiple of 2

initialize one-dimensional mutable array from a Sequence

Is this type assignable to a type parameter with constraint `T`?

The result of this is a compile-time constant that can be used to specialize
code for a particular type.


it is most useful in conjunction with preconditions or `if` statements as in


or

name of this type, including type parameters, e.g. 'option (list i32)'.

initialize one-dimensional mutable array

initialize one-dimensional mutable array

convenience prefix operator to create a string from a value.

This permits usage of `$` as a prefix operator in a similar way both
inside and outside of constant strings: $x and "$x" will produce the
same string.

NYI: Redefinition allows the type feature to be distinguished from its normal counterpart, see #3913

Get a type as a value.

This is a feature with the effect equivalent to Fuzion's `expr.type` call tail.
It is recommended to use `expr.type` and not `expr.type_value`.

`type_value` is here to show how this can be implemented and to illustrate the
difference to `dynamic_type`.