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Example topicsguard

Overview

Basics

Blocks and comments Comments

Values

fix var Types Literals Text interpolation Operators and / or / not Numeric conversions Nullable types ?. / ?[]????=is as Null refinement

Collections

Lists Maps Arrays Indexing range

Functions

fun / return Lambdas Generics / given Streams

Flow

if / elif / else while for / in stop / next choose / when try / handle / finally raise Type patterns

Types

class / init / self data / generate Display choice contract / impl / override base / needs / inherits extendable / fix closed singleton alias forward Visibility

Properties

read / write lazy fix late var constant

Java & modules

space use / as Calling Java Java calling Kalm external fun augment bridge augment annotation / target Annotation use legacy Overloads and varargs Type annotations

Resources

with defer expect / require / ensure

Concurrency

task async fun / await Java completion stages guard

Testing

test / before / after

Standard library

say / sayLine Text helpers Math helpers exit

guard

Synchronize on a non-null receiver; await is prohibited inside a guard.

Example.kalm kalm

pub fun update(values: List<Text>) -> Unit:
    guard values:
        values.add("ready")

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