| switch |
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grammar |
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A statement that passes control to a subordinate
case
statement or possibly to an optional
default
statement.
The Yoix interpreter makes the selection at runtime by comparing
the value of the supplied expression to the enclosed case statement
expressions using the
===
operator.
Its usage description can be summarized as follows:
Statement:
switch ( Expression ) Compound
Every enclosed case expression is evaluated the first time the switch
statement is executed and the results are saved and used again every
time the switch statement is executed.
This is an important point that is worth emphasizing:
the Yoix interpreter builds a jump table for a switch statement
at runtime by evaluating and saving every enclosed case expression,
so the performance of a switch statement improves dramatically after
the first execution.
When no
case
statement provides a match control passes to the optional
default
statement or to the end of the switch statement.
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Yoix is a registered trademark of AT&T Intellectual Property.
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