حالة

Introduces a branch inside an اختر or طابق statement.

Aliases: case

Syntax: حالة <expression> <block>

Category#

control-flow

Related#

• اختر
• طابق

Examples#

radix/corpus/casu/casu.fab (canonical · keyword)#

Introduces a branch inside an اختر or طابق statement.

# =============================================================================
# حالة — Introduces a branch inside an اختر or طابق statement.
# =============================================================================
#
# What this teaches:
#   • Pattern matching arms — `حالة <expression> <block>` defines a branch in
#     an `اختر` match expression
#   • Default fallback — `افتراضي` provides the catch-all branch when no
#     `حالة` pattern matches
#
# Common mistakes:
#   • non-exhaustive match without a `افتراضي` catchall — every `اختر` or `طابق` must cover all possibilities or add a `افتراضي` arm
#
# See also: اختر, طابق
# =============================================================================

# حالة — branch arm in اختر or طابق
#
# GRAMMAR:
#   casuClause :← 'حالة' expr block
#
# EXPECTED OUTPUT:
#   Scalar stdout smoke (see body).
#
# BACKEND:
#   Cross-ref: اختر/elige.fab, طابق/discerne.fab.
#

main {
    const _ code ← 200
    switch code {
        case 200 {
            print "ok"
        }
        default {
            print "other"
        }
    }
}

Expected output:

ok