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Variables
^^^^^^^^^
.. crowbar:element:: VariableDeclaration <- Type identifier ';'
Compile-time Behavior:
A variable declaration specifies the type and name of a variable but not its initial value.
This is only used in :crowbar:ref:`HeaderFile`\ s as part of API boundaries.
Runtime Behavior:
A variable declaration has no runtime behavior.
.. crowbar:element:: VariableDefinition <- Type identifier '=' Expression ';'
Compile-time Behavior:
A variable definition specifies the type, name, and initial value of a variable.
If the expression has a type which is not the type specified for the variable, an error must be emitted.
Runtime Behavior:
When a variable definition is executed, the expression is evaluated, and its result is made available with the given name.
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