java

A Java array

A Java reference

Java's 'java.lang.String' type

convert a Sequence to a Java Array object

This only works for types that map to java primitives

If you want to create an array of complex types use `Java.as_java_object [...]`

create a String from this instance. Unless redefined, `a.as_string` will
create `"instance[T]"` where `T` is the dynamic type of `a`

intrinsic to convert a bool to a Java Boolean object

Call a Java constructor with given signature for class with given name
with given arguments

Call a static Java method with given name and signature with given
arguments

Call a virtual Java method class_name.name with given signature signature
on instance thiz with given arguments

cast this to some other class

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.

intrinsic to convert an f32 to a Java Float object

intrinsic to convert a f64 to a Java Double object

read a field of given name from given object instance thiz. Wrap result into
an instance of T.

read a static field of given name in class with given name. Wrap result into
an instance of T.

intrinsic to convert an i16 to a Java Short object

intrinsic to convert an i32 to a Java Integer object

intrinsic to convert an i64 to a Java Long object

intrinsic to convert an i8 to a Java Byte object

get a null value of type T

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.

set a field of given name from given object instance thiz.

set a static field of given name in class with given name.

convert a string to a Java String object

intrinsic to convert an u16 to a Java Character object

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.

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.

is_of_integer_type(n T : numeric) => T : integer
say (is_of_integer_type 1234) # true
say (is_of_integer_type 3.14) # false

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

pair(a,b T) is

=>

or

val(n T) is

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

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`.