with-variable ( value key quot -- )
Factor handbook » The language » Dynamic variables » Namespace combinators

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Vocabulary
namespaces

Inputs

value	an object
key	a variable, by convention a symbol
quot	a quotation

Outputs
None

Word description
Calls the quotation in a new namespace where key is set to value.

Examples
The following two phrases are equivalent:

[ 3 x set foo ] with-scope

3 x [ foo ] with-variable

Definition

USING: hashtables kernel ;

IN: namespaces

: with-variable ( value key quot -- )
    [ associate ] dip with-variables ; inline