Names, Scopes, and Bindings Names, Scopes, and ... - Lrde - Epita
Names, Scopes, and Bindings Names, Scopes, and ... - Lrde - Epita
Names, Scopes, and Bindings Names, Scopes, and ... - Lrde - Epita
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<strong>Bindings</strong><br />
Symbol Tables<br />
Complications<br />
<strong>Names</strong><br />
<strong>Scopes</strong><br />
Binding Time<br />
<strong>Bindings</strong><br />
Symbol Tables<br />
Complications<br />
<strong>Names</strong><br />
<strong>Scopes</strong><br />
Binding Time<br />
<strong>Names</strong>, Identifiers, Symbols<br />
Identifiers<br />
Name (Identifiers, Symbols)<br />
reference<br />
address<br />
value<br />
To refer to some entities: variable, type, function, namespace,<br />
constant, control structure etc.<br />
usually alphanumeric <strong>and</strong> underscore, letter first, without<br />
white spaces.<br />
Algol 60, FORTRAN ignore white spaces.<br />
limitation on the length<br />
6 characters for the original FORTRAN (Fortran 90: 31),<br />
ISO C: 31<br />
no limit for most others.<br />
case insensitive in Modula-2 <strong>and</strong> Ada.<br />
A. Demaille, R. Levillain <strong>Names</strong>, <strong>Scopes</strong>, <strong>and</strong> <strong>Bindings</strong> 5 / 55<br />
A. Demaille, R. Levillain <strong>Names</strong>, <strong>Scopes</strong>, <strong>and</strong> <strong>Bindings</strong> 6 / 55<br />
<strong>Bindings</strong><br />
Symbol Tables<br />
Complications<br />
<strong>Names</strong><br />
<strong>Scopes</strong><br />
Binding Time<br />
<strong>Bindings</strong><br />
Symbol Tables<br />
Complications<br />
<strong>Names</strong><br />
<strong>Scopes</strong><br />
Binding Time<br />
<strong>Names</strong>, Objects, <strong>and</strong> <strong>Bindings</strong> [3]<br />
<strong>Names</strong>, Objects, <strong>and</strong> <strong>Bindings</strong><br />
Object 2<br />
Object 1 binding<br />
binding<br />
Name 1<br />
Name 2<br />
Name 3<br />
When are objects created <strong>and</strong> destroyed?<br />
Lifetimes (deferred to a later lecture).<br />
When are names created <strong>and</strong> destroyed?<br />
<strong>Scopes</strong>.<br />
Object 3<br />
binding<br />
binding<br />
Name 4<br />
When are bindings created <strong>and</strong> destroyed?<br />
Binding times.<br />
Object 4<br />
A. Demaille, R. Levillain <strong>Names</strong>, <strong>Scopes</strong>, <strong>and</strong> <strong>Bindings</strong> 7 / 55<br />
A. Demaille, R. Levillain <strong>Names</strong>, <strong>Scopes</strong>, <strong>and</strong> <strong>Bindings</strong> 8 / 55
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