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Showing content from http://www.lispworks.com/documentation/lw71/LW/html/lw-702.htm below:

variable-information

Description

The function variable-information returns information about how the variable symbol is bound in the environment env.

The value of kind will be as follows:

nil

There is no information about variable in env

:special

variable has a special binding in env

:lexical

variable has a lexical binding in env

:symbol-macro

variable has a symbol-macro binding in env

:constant

variable has a constant binding in env

localp will be true if variable is bound by a form that has lexical scope (for example let, lambda) or false if variable has global scope (for example defvar).

decls is an a-list of declarations that refer to variable. The cdr of each pair is specified according to the car of the pair as follows:

dynamic-extent

The cdr is non-nil if variable is declared dynamic-extent in env.

ignore

The cdr is non-nil if variable is declared ignore in env.

type

The cdr is the type specifier that is declared for variable in env if any.


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