version 1.36, 1998/10/10 10:28:34
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version 1.39, 1999/02/03 00:10:21
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\ A powerful locals implementation |
\ A powerful locals implementation |
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\ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 129 require float.fs
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Line 129 require float.fs
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slowvoc @ |
slowvoc @ |
slowvoc on \ we want a linked list for the vocabulary locals |
slowvoc on \ we want a linked list for the vocabulary locals |
vocabulary locals \ this contains the local variables |
vocabulary locals \ this contains the local variables |
' locals >body ' locals-list >body ! |
' locals >body wordlist-id ' locals-list >body ! |
slowvoc ! |
slowvoc ! |
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create locals-buffer 1000 allot \ !! limited and unsafe |
create locals-buffer 1000 allot \ !! limited and unsafe |
Line 195 variable locals-dp \ so here's the speci
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Line 195 variable locals-dp \ so here's the speci
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faligned nip ; |
faligned nip ; |
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: set-locals-size-list ( list -- ) |
: set-locals-size-list ( list -- ) |
dup locals-list wordlist-id ! |
dup locals-list ! |
list-size locals-size ! ; |
list-size locals-size ! ; |
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: check-begin ( list -- ) |
: check-begin ( list -- ) |
\ warn if list is not a sublist of locals-list |
\ warn if list is not a sublist of locals-list |
locals-list wordlist-id @ sub-list? 0= if |
locals-list @ sub-list? 0= if |
\ !! print current position |
\ !! print current position |
." compiler was overly optimistic about locals at a BEGIN" cr |
." compiler was overly optimistic about locals at a BEGIN" cr |
\ !! print assumption and reality |
\ !! print assumption and reality |
Line 292 locals-types definitions
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Line 292 locals-types definitions
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postpone laddr# @ lp-offset, ; |
postpone laddr# @ lp-offset, ; |
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\ you may want to make comments in a locals definitions group: |
\ you may want to make comments in a locals definitions group: |
' \ alias \ immediate |
' \ alias \ ( -- ) \ core-ext,block-ext backslash |
' ( alias ( immediate |
\G Line comment: if @code{BLK} contains 0, parse and discard the remainder |
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\G of the parse area. Otherwise, parse and discard all subsequent characters in the |
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\G parse area corresponding to the current line. |
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immediate |
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' ( alias ( ( compilation 'ccc<close-paren>' -- ; run-time -- ) \ core,file paren |
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\G Comment: parse and discard all subsequent characters in the parse |
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\G area until ")" is encountered. During interactive input, an end-of-line |
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\G also acts as a comment terminator. For file input, it does not; if the |
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\G end-of-file is encountered whilst parsing for the ")" delimiter, Gforth |
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\G will generate a warning. |
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immediate |
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forth definitions |
forth definitions |
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Line 356 locals-types definitions
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Line 367 locals-types definitions
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locals-size @ alignlp-f locals-size ! \ the strictest alignment |
locals-size @ alignlp-f locals-size ! \ the strictest alignment |
previous previous |
previous previous |
set-current lastcfa ! |
set-current lastcfa ! |
locals-list TO locals-wordlist ; |
locals-list 0 wordlist-id - TO locals-wordlist ; |
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: -- ( addr wid 0 ... -- ) \ gforth dash-dash |
: -- ( addr wid 0 ... -- ) \ gforth dash-dash |
} |
} |
Line 460 forth definitions
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Line 471 forth definitions
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cs-push-part scopestart ; immediate |
cs-push-part scopestart ; immediate |
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: adjust-locals-list ( wid -- ) |
: adjust-locals-list ( wid -- ) |
locals-list wordlist-id @ common-list |
locals-list @ common-list |
dup list-size adjust-locals-size |
dup list-size adjust-locals-size |
locals-list wordlist-id ! ; |
locals-list ! ; |
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: endscope ( compilation scope -- ; run-time -- ) \ gforth |
: endscope ( compilation scope -- ; run-time -- ) \ gforth |
scope? |
scope? |
Line 477 forth definitions
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Line 488 forth definitions
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clear-leave-stack |
clear-leave-stack |
0 locals-size ! |
0 locals-size ! |
locals-buffer locals-dp ! |
locals-buffer locals-dp ! |
0 locals-list wordlist-id ! |
0 locals-list ! |
dead-code off |
dead-code off |
defstart ; |
defstart ; |
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