version 1.17, 2000/11/13 22:10:30
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version 1.18, 2000/11/29 22:21:57
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Line 75 AUser CSP
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Line 75 AUser CSP
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\ const-does> |
\ const-does> |
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: compile-literals ( w*u u -- ; run-time: -- w*u ) recursive |
: compile-literals ( w*u u -- ; run-time: -- w*u ) recursive |
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\ compile u literals, starting with the bottommost one |
?dup-if |
?dup-if |
swap >r 1- compile-literals |
swap >r 1- compile-literals |
r> POSTPONE literal |
r> POSTPONE literal |
endif ; |
endif ; |
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: compile-fliterals ( r*u u -- ; run-time: -- w*u ) recursive |
: compile-fliterals ( r*u u -- ; run-time: -- w*u ) recursive |
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\ compile u fliterals, starting with the bottommost one |
?dup-if |
?dup-if |
{ F: r } 1- compile-fliterals |
{ F: r } 1- compile-fliterals |
r POSTPONE fliteral |
r POSTPONE fliteral |
endif ; |
endif ; |
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: (const-does>) ( w*uw r*ur uw ur target "name" -- ) |
: (const-does>) ( w*uw r*ur uw ur target "name" -- ) |
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\ define a colon definition "name" containing w*uw r*ur as |
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\ literals and a call to target. |
{ uw ur target } |
{ uw ur target } |
header docol: cfa, \ start colon def without stack junk |
header docol: cfa, \ start colon def without stack junk |
ur compile-fliterals uw compile-literals |
ur compile-fliterals uw compile-literals |
target compile, POSTPONE exit reveal ; |
target compile, POSTPONE exit reveal ; |
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: const-does> ( run-time: w*uw r*ur uw ur "name" -- ) |
: const-does> ( run-time: w*uw r*ur uw ur "name" -- ) |
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\G Defines @var{name} and returns.@sp 0 |
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\G @var{name} execution: pushes @var{w*uw r*ur}, then performs the |
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\G code following the @code{const-does>}. |
here >r 0 POSTPONE literal |
here >r 0 POSTPONE literal |
POSTPONE (const-does>) |
POSTPONE (const-does>) |
POSTPONE ; |
POSTPONE ; |