Java Reference
In-Depth Information
•
V
is [un]assigned before
S
iff
V
is [un]assigned after
e
when true.
•
V
is [un]assigned before
T
iff
V
is [un]assigned after
e
when false.
16.2.8.
assert
Statements
The following rules apply both to a statement
assert
e
1
and to a statement
assert
e
1
:
e
2
•
V
is [un]assigned before
e
1
iff
V
is [un]assigned before the
assert
statement.
•
V
is definitely assigned after the
assert
statement iff
V
is definitely assigned before
the
assert
statement.
•
V
is definitely unassigned after the
assert
statement iff
V
is definitely unassigned be-
fore the
assert
statement and
V
is definitely unassigned after
e
1
when true.
The following rule applies to a statement
assert
e
1
:
e
2
:
•
V
is [un]assigned before
e
2
iff
V
is [un]assigned after
e
1
when false.
16.2.9.
switch
Statements
♦ Either there is a
default
label in the switch block or
V
is [un]assigned after the
switch expression.
♦ Either there are no switch labels in the switch block that do not begin a block-
statement-group (that is, there are no switch labels immediately before the “
}
”
that ends the switch block) or
V
is [un]assigned after the switch expression.
♦ Either the switch block contains no block-statement-groups or
V
is
[un]assigned after the last block-statement of the last block-statement-group.
♦
V
is [un]assigned before every
break
statement that may exit the
switch
state-
ment.
•
V
is [un]assigned before the switch expression iff
V
is [un]assigned before the
switch
statement.
If a switch block contains at least one block-statement-group, then the following rules also
apply:
•
V
is [un]assigned before the first block-statement of the first block-statement-
group in the switch block iff
V
is [un]assigned after the switch expression.
