Abstract
The rules defining the scope of declarations and the rules defining which identifiers, character_literals, and operator_symbols are visible at (or from) various places in the text of the program are described in this clause. The formulation of these rules uses the notion of a declarative region.
As explained in Clause 3, a declaration declares a view of an entity and associates a defining name with that view. The view comprises an identification of the viewed entity, and possibly additional properties. A usage name denotes a declaration. It also denotes the view declared by that declaration, and denotes the entity of that view. Thus, two different usage names might denote two different views of the same entity; in this case they denote the same entity.
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Tucker Taft, S., Duff, R.A., Brukardt, R.L., Ploedereder, E., Leroy, P., Schonberg, E. (2013). Visibility Rules. In: Taft, S.T., Duff, R.A., Brukardt, R.L., Ploedereder, E., Leroy, P., Schonberg, E. (eds) Ada 2012 Reference Manual. Language and Standard Libraries. Lecture Notes in Computer Science, vol 8339. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-45419-6_8
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DOI: https://doi.org/10.1007/978-3-642-45419-6_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-45418-9
Online ISBN: 978-3-642-45419-6
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