immediate  ( -- )

published: 8 January 2022 / updated 2 December 2023

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vocabulary: forth

Make the most recent definition an immediate word.

Sets the compile-only lexicon bit in the name field of the new word just compiled. When the interpreter encounters a word with this bit set, it will not execute this word, but spit out an error message. This bit prevents structure words to be executed accidentally outside of a compound word.

Example:

: myWord 
    ." *** HELLO ***"  ; immediate 
: myTest 
    myWord 
    ." *** TEST *** ; 
\ display: *** HELLO ***  during compilation of myTest 
myTest     \ display: *** TEST *** 

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