Fixed expression

Syntax

<?fixed={x}?>

FixedExpression :
<?fixed={ ListExpression^allowIn } ?>

Semantics

Deactivates lookup of dynamic properties (implemented through a shock_proxy proxy such as shock_proxy::get(k) where k includes String or QName) in the enclosed expression.

Note: This is necessary in rare cases where, for example, a class implements its own dynamic properties which may collide with its prototype. In such cases, instance variables are not accessible unless the user uses the fixed expression <?fixed={exp}?>. In the case of this, the fixed expression is not necessary as in-scope lookup always uses fixed name lookup.

The fixed name lookup effect is propagated:

• From parenthesized expressions to the inner expression
• From dot operator to base expression
• From brackets operator to base expression