$[
Interpolating code results into literal values

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Vocabulary
literals

Syntax

$[ code ]

Word description
Calls code at parse time and adds the result(s) to the parser accumulator.

Notes
Since code is called at parse time, it cannot reference any words defined in the same compilation unit.

Examples

USING: kernel literals math prettyprint ; IN: scratchpad << CONSTANT: five 5 >> { $[ five dup 1 + dup 2 + ] } .
{ 5 6 8 }

See also
$, ${

Definition

USING: continuations parser vectors ;

IN: literals

SYNTAX: $[ parse-quotation with-datastack >vector ;