»
switch
switch
Type Parameters
Functions
returns o if outcome is ok, otherwise return the outcome's own
error.
error.
synonym for infix >>=
this switch as an equatable_switch
converts switch into a list of either a single element in case
switch.this.exists or `nil`otherwise
switch.this.exists or `nil`otherwise
convert this switch to an option
convert this switch to an outcome
convert this switch to an outcome
converts switch to a string
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.
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.
unwraps a switch that is known to contain a value
this can only be called in cases where it is known for sure that this switch
is not nil. A runtime error will be created otherwise.
this can only be called in cases where it is known for sure that this switch
is not nil. A runtime error will be created otherwise.
unwrap value or get default
§(f Unary (switch.this switch.A switch.B) switch.A) => switch.this switch.A switch.B [Redefinition of monad.infix >>=]
§
(f Unary (switch.this switch.A switch.B) switch.A)
=>
switch.this switch.A switch.B [Redefinition of monad.infix >>=]
monadic operator
§(B type, MB type:monad (monad.infix >>=~.B) (monad.infix >>=~.MB), f Unary MB monad.A) => MB [Inherited from monad] [Abstract feature]
§
(B
type
, MB type
:monad (monad.infix >>=~.B) (monad.infix >>=~.MB), f Unary MB monad.A) =>
MB [Inherited from monad]
[Abstract feature]
monadic operator to another monad
Apply f to elements of type A and wrap them in MB.
Apply f to elements of type A and wrap them in MB.
join operator
if this switch is nil return the result of f
otherwise just return this switch.
otherwise just return this switch.
unwraps an switch if it exists, returns default value otherwise.
short-hand postfix operator for '!exists'
short-hand postfix operator for 'exists'
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.
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.
value of a switch that is known to contain a value
This can only be called in cases where it is known for sure that this
switch is not a B. A runtime error will be created otherwise.
This can only be called in cases where it is known for sure that this
switch is not a B. A runtime error will be created otherwise.
Type Functions
string representation of this type to be used for debugging.
result has the form "Type of '<name>'", but this might change in the future
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.
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
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
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
return function
explicitly tag value a to become choice
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`.
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`.
0.093dev (2025-05-13 15:50:27 GIT hash 38f965e14265a6f3ba3f96f18ddedb79352428af built by fridi@fzen)
that encode success and failure,
e.g. option (something/nil)