author | Claus Gittinger <cg@exept.de> |
Fri, 15 Dec 2000 17:48:21 +0100 | |
changeset 5751 | ceba525a9c2a |
parent 5744 | 229241968e2a |
child 5766 | 64d22218e98b |
permissions | -rw-r--r-- |
1 | 1 |
" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
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All Rights Reserved |
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|
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This software is furnished under a license and may be used |
|
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only in accordance with the terms of that license and with the |
|
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inclusion of the above copyright notice. This software may not |
|
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be provided or otherwise made available to, or used by, any |
|
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other person. No title to or ownership of the software is |
|
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hereby transferred. |
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" |
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||
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"{ Package: 'stx:libbasic' }" |
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CompiledCode variableSubclass:#Block |
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instanceVariableNames:'home nargs sourcePos initialPC' |
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only Block & CheapBlock are fixed - subclasses may look different
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parents:
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diff
changeset
|
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classVariableNames:'InvalidNewSignal' |
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parents:
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diff
changeset
|
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poolDictionaries:'' |
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parents:
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diff
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category:'Kernel-Methods' |
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! |
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||
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!Block class methodsFor:'documentation'! |
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|
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copyright |
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" |
|
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COPYRIGHT (c) 1989 by Claus Gittinger |
|
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All Rights Reserved |
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|
29 |
This software is furnished under a license and may be used |
|
30 |
only in accordance with the terms of that license and with the |
|
31 |
inclusion of the above copyright notice. This software may not |
|
32 |
be provided or otherwise made available to, or used by, any |
|
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other person. No title to or ownership of the software is |
|
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hereby transferred. |
|
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" |
|
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! |
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||
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documentation |
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" |
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Blocks are pieces of executable code which can be evaluated by sending |
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them a value-message (''value'', ''value:'', ''value:value:'' etc). |
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In smalltalk, Blocks provide the basic (and heavily used) mechanism |
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for looping, enumerating collection elements, visitors, exception |
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handling, unwinding, delayed execution and processes. |
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||
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Blocks are never created explicitely; the only creation |
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is done by the compilers, when some sourceCode is compiled to either |
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machine or byteCode. |
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||
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Blocks with arguments need a message of type ''value:arg1 ... value:argn'' |
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for evaluation; the number of arguments passed when evaluating must match |
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the number of arguments the block was declared with otherwise an error is |
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raised. Blocks without args need a ''value'' message for evaluation. |
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|
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Blocks keep a reference to the context where the block was declared - |
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this allows blocks to access the methods arguments and/or variables. |
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This is still true after the method has returned - since the |
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block keeps this reference, the methods context will NOT die in this case. |
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(i.e. Blocks are closures in Smalltalk/X) |
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|
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A return (via ^-statement) out of a block will force a return from the |
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blocks method context (if it is still living) - this make the implementation |
|
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of long-jumps and control structures possible. |
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(If the method is not alive (i.e. has already returned), a return out of the |
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block will trigger an error) |
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|
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Long-jump is done by defining a catchBlock as ''[^ self]'' |
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somewhere up in the calling-tree. Then, to do the long-jump from out of some |
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deeply nested method, simply do: ''catchBlock value''. |
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[Instance variables:] |
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|
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home <Context> the context where this block was created (i.e. defined) |
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this may be a blockContext or a methodContext |
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nargs <SmallInteger> the number of arguments the block expects |
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sourcePos <SmallInteger> the character position of its source, in chars |
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relative to methods source beginning |
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initialPC <SmallInteger> the start position within the byteCode |
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for compiled blocks, this is nil. |
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[Class variables:] |
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|
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InvalidNewSignal raised if a Block is tried to be created |
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with new (which is not allowed). |
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Only the VM is allowed to create Blocks. |
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NOTICE: layout known by runtime system and compiler - do not change |
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[author:] |
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Claus Gittinger |
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|
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[see also:] |
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Process Context |
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Collection |
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( contexts. blocks & unwinding : programming/contexts.html) |
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" |
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! |
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||
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examples |
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" |
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define a block and evaluate it: |
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[exBegin] |
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|b| |
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b := [ Transcript showCR:'hello' ]. |
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Transcript showCR:'now evaluating the block ...'. |
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b value. |
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[exEnd] |
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||
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even here, blocks are involved: |
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(although, the compiler optimizes things if possible) |
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[exBegin] |
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Transcript showCR:'now evaluating one of two blocks ...'. |
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1 > 4 ifTrue:[ |
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Transcript showCR:'foo' |
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] ifFalse:[ |
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Transcript showCR:'bar' |
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] |
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[exEnd] |
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here things become obvious: |
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[exBegin] |
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|yesBlock noBlock| |
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yesBlock := [ Transcript showCR:'foo' ]. |
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noBlock := [ Transcript showCR:'bar' ]. |
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Transcript showCR:'now evaluating one of two blocks ...'. |
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1 > 4 ifTrue:yesBlock |
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ifFalse:noBlock |
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[exEnd] |
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||
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simple loops: |
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not very objectOriented: |
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[exBegin] |
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|i| |
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i := 1. |
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[i < 10] whileTrue:[ |
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Transcript showCR:i. |
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i := i + 1 |
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] |
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[exEnd] |
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using integer protocol: |
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[exBegin] |
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1 to:10 do:[:i | |
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Transcript showCR:i. |
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] |
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[exEnd] |
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||
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interval protocol: |
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[exBegin] |
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(1 to:10) do:[:i | |
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Transcript showCR:i. |
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] |
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[exEnd] |
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||
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looping over collections: |
174 |
||
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bad code: |
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(only works with numeric-indexable collections) |
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[exBegin] |
178 |
|i coll| |
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coll := #(9 8 7 6 5). |
181 |
i := 1. |
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[i <= coll size] whileTrue:[ |
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Transcript showCR:(coll at:i). |
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i := i + 1. |
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] |
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[exEnd] |
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||
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||
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just as bad (well, marginally better ;-): |
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(only works with numeric-indexable collections) |
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[exBegin] |
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|coll| |
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coll := #(9 8 7 6 5). |
196 |
1 to:coll size do:[:i | |
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Transcript showCR:(coll at:i). |
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] |
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[exEnd] |
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||
202 |
||
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the smalltalk way: |
204 |
(works with any collection) |
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[exBegin] |
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|coll| |
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coll := #(9 8 7 6 5). |
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coll do:[:element | |
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Transcript showCR:element. |
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] |
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[exEnd] |
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Rule: use enumeration protocol of the collection instead of |
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manually indexing it. [with few exceptions] |
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||
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processes: |
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||
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forking a lightweight process (thread): |
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[exBegin] |
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[ |
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Transcript showCR:'waiting ...'. |
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Delay waitForSeconds:2. |
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Transcript showCR:'here I am'. |
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] fork |
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[exEnd] |
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||
231 |
||
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some with low prio: |
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[exBegin] |
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[ |
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Transcript showCR:'computing ...'. |
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10000 factorial. |
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Transcript showCR:'here I am'. |
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] forkAt:(Processor userBackgroundPriority) |
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[exEnd] |
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||
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handling exceptions: |
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[exBegin] |
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Object errorSignal handle:[:ex | |
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Transcript showCR:'exception handler forces return'. |
|
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ex return |
|
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] do:[ |
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Transcript showCR:'now, doing something bad ...'. |
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1 / 0. |
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Transcript showCR:'not reached' |
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] |
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[exEnd] |
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||
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|
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performing cleanup actions: |
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[exBegin] |
259 |
Object errorSignal handle:[:ex | |
|
260 |
Transcript showCR:'exception handler forces return'. |
|
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ex return |
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] do:[ |
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[ |
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Transcript showCR:'doing something bad ...'. |
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1 / 0. |
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Transcript showCR:'not reached' |
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] valueOnUnwindDo:[ |
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Transcript showCR:'cleanup' |
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] |
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] |
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[exEnd] |
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||
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delayed execution (visitor pattern): |
275 |
(looking carefully into the example, |
|
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C/C++ programmers may raise their eyes ;-) |
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[exBegin] |
278 |
|showBlock countBlock |
|
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howMany |
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top panel b1 b2| |
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1265 | 281 |
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howMany := 0. |
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showBlock := [ Transcript showCR:howMany ]. |
285 |
countBlock := [ howMany := howMany + 1 ]. |
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top := StandardSystemView extent:200@200. |
288 |
panel := HorizontalPanelView origin:0.0@0.0 corner:1.0@1.0 in:top. |
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b1 := Button label:'count up' in:panel. |
291 |
b1 action:countBlock. |
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b2 := Button label:'show value' in:panel. |
294 |
b2 action:showBlock. |
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top open. |
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Transcript showCR:'new process started;'. |
299 |
Transcript showCR:'notice: the blocks can still access the'. |
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300 |
Transcript showCR:' howMany local variable.'. |
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[exEnd] |
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" |
1 | 303 |
! ! |
304 |
||
1773
442d1b73ecb9
no longer allow Blocks with a dynamic-bit to be created
Claus Gittinger <cg@exept.de>
parents:
1672
diff
changeset
|
305 |
!Block class methodsFor:'initialization'! |
1 | 306 |
|
307 |
initialize |
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"create signals raised by various errors" |
1 | 309 |
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InvalidNewSignal isNil ifTrue:[ |
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InvalidNewSignal := ErrorSignal newSignalMayProceed:false. |
312 |
InvalidNewSignal nameClass:self message:#invalidNewSignal. |
|
313 |
InvalidNewSignal notifierString:'blocks are only created by the system'. |
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] |
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"Modified: 22.4.1996 / 16:34:20 / cg" |
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1 | 317 |
! ! |
318 |
||
1773
442d1b73ecb9
no longer allow Blocks with a dynamic-bit to be created
Claus Gittinger <cg@exept.de>
parents:
1672
diff
changeset
|
319 |
!Block class methodsFor:'instance creation'! |
1 | 320 |
|
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|
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byteCode:bCode numArgs:numArgs numStack:nStack sourcePosition:sourcePos initialPC:initialPC literals:literals |
1 | 322 |
"create a new cheap (homeless) block. |
222 | 323 |
Not for public use - this is a special hook for the compiler." |
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|
325 |
|newBlock| |
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326 |
||
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Move method's literals form literalArray to indexed instvars.
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|
327 |
newBlock := (super basicNew:(literals size)) |
2542
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need stackSize when creating blocks.
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parents:
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changeset
|
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byteCode:bCode |
555749f035f4
need stackSize when creating blocks.
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parents:
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diff
changeset
|
329 |
numArgs:numArgs |
555749f035f4
need stackSize when creating blocks.
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parents:
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diff
changeset
|
330 |
numStack:nStack |
555749f035f4
need stackSize when creating blocks.
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parents:
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diff
changeset
|
331 |
sourcePosition:sourcePos |
555749f035f4
need stackSize when creating blocks.
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parents:
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diff
changeset
|
332 |
initialPC:initialPC |
555749f035f4
need stackSize when creating blocks.
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parents:
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diff
changeset
|
333 |
literals:literals. |
1 | 334 |
^ newBlock |
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Move method's literals form literalArray to indexed instvars.
Stefan Vogel <sv@exept.de>
parents:
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diff
changeset
|
335 |
|
33e226c7d187
Move method's literals form literalArray to indexed instvars.
Stefan Vogel <sv@exept.de>
parents:
1422
diff
changeset
|
336 |
"Modified: 24.6.1996 / 12:36:48 / stefan" |
2542
555749f035f4
need stackSize when creating blocks.
Claus Gittinger <cg@exept.de>
parents:
2301
diff
changeset
|
337 |
"Created: 13.4.1997 / 00:04:09 / cg" |
1 | 338 |
! |
339 |
||
22 | 340 |
new |
4299 | 341 |
"catch creation of blocks - only the system creates blocks. |
342 |
If you really need a block (assuming, you are some compiler), |
|
343 |
use basicNew and setup the instance carefully" |
|
1 | 344 |
|
128 | 345 |
^ InvalidNewSignal raise. |
1 | 346 |
! |
347 |
||
22 | 348 |
new:size |
1 | 349 |
"catch creation of blocks - only the system creates blocks" |
350 |
||
128 | 351 |
^ InvalidNewSignal raise. |
1 | 352 |
! ! |
353 |
||
1773
442d1b73ecb9
no longer allow Blocks with a dynamic-bit to be created
Claus Gittinger <cg@exept.de>
parents:
1672
diff
changeset
|
354 |
!Block class methodsFor:'queries'! |
1 | 355 |
|
623 | 356 |
isBuiltInClass |
1264 | 357 |
"return true if this class is known by the run-time-system. |
358 |
Here, true is returned for myself, false for subclasses." |
|
11 | 359 |
|
1181
6637fee79d7b
only Block & CheapBlock are fixed - subclasses may look different
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
360 |
^ self == Block |
6637fee79d7b
only Block & CheapBlock are fixed - subclasses may look different
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
361 |
|
1264 | 362 |
"Modified: 23.4.1996 / 15:55:58 / cg" |
1 | 363 |
! ! |
364 |
||
5744 | 365 |
|
5349 | 366 |
!Block methodsFor:'Compatibility - ANSI'! |
367 |
||
368 |
ensure:aBlock |
|
369 |
"evaluate the receiver and return its result. |
|
370 |
After evaluation, also evaluate aBlock but ignore its result. |
|
371 |
aBlock is also evaluated in case of abnormal termination. |
|
372 |
(the same as #valueNowOrOnUnwindDo:)" |
|
373 |
||
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parents:
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diff
changeset
|
374 |
<exception: #unwind> |
de56e39714da
inlined unwind setup into #ensure:
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parents:
5349
diff
changeset
|
375 |
|
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
376 |
|v| |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
377 |
|
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
378 |
v := self value. "the real logic is in Context>>unwind" |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
379 |
thisContext unmarkForUnwind. |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
380 |
aBlock value. |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
381 |
^ v |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
382 |
|
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
383 |
"/ the above is the same as in #valueNowOrOnUnwindDo: |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
384 |
"/ (actually, the previous implementation was: |
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
385 |
"/ ^ self valueNowOrOnUnwindDo:aBlock |
5349 | 386 |
|
387 |
" |
|
388 |
[ |
|
389 |
[ |
|
390 |
Transcript showCR:'one'. |
|
391 |
Processor activeProcess terminate. |
|
392 |
Transcript showCR:'two'. |
|
393 |
] ensure:[ |
|
394 |
Transcript showCR:'three'. |
|
395 |
]. |
|
396 |
] fork. |
|
397 |
" |
|
398 |
||
399 |
" |
|
400 |
[ |
|
401 |
[ |
|
402 |
Transcript showCR:'one'. |
|
403 |
Transcript showCR:'two'. |
|
404 |
] ensure:[ |
|
405 |
Transcript showCR:'three'. |
|
406 |
]. |
|
407 |
] fork. |
|
408 |
" |
|
409 |
! ! |
|
410 |
||
5015 | 411 |
!Block methodsFor:'Compatibility - Squeak'! |
412 |
||
413 |
ifError:handlerBlock |
|
414 |
^ self on:Error do:handlerBlock |
|
415 |
! ! |
|
416 |
||
1979 | 417 |
!Block methodsFor:'Compatibility - V''Age'! |
418 |
||
419 |
argumentCount |
|
420 |
"VisualAge compatibility: alias for #numArgs. |
|
421 |
return the number of arguments I expect for evaluation" |
|
422 |
||
423 |
^ nargs |
|
424 |
||
425 |
"Created: 15.11.1996 / 11:22:02 / cg" |
|
426 |
! |
|
427 |
||
428 |
valueOnReturnDo:aBlock |
|
429 |
"VisualAge compatibility: alias for #valueOnUnwindDo: |
|
430 |
evaluate the receiver - when some method sent within unwinds |
|
431 |
(i.e. does a long return), evaluate the argument, aBlock. |
|
432 |
This is used to make certain that cleanup actions |
|
433 |
(for example closing files etc.) are executed regardless of error actions. |
|
434 |
||
435 |
Q: is this the exact semantics of V'Ages method ? |
|
2238 | 436 |
the documentation is unclean; it could be a valueNowOrOnUnwindDo: ..." |
1979 | 437 |
|
438 |
^ self valueOnUnwindDo:aBlock |
|
439 |
||
440 |
"Created: 15.11.1996 / 11:38:37 / cg" |
|
441 |
! ! |
|
442 |
||
623 | 443 |
!Block methodsFor:'accessing'! |
154 | 444 |
|
445 |
home |
|
446 |
"return the receivers home context (the context where it was |
|
447 |
created). For cheap blocks, nil is returned" |
|
448 |
||
449 |
^ home |
|
161 | 450 |
! |
451 |
||
2694
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
452 |
homeMethod |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
453 |
"return the receivers home method. |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
454 |
Thats the method where the block was created." |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
455 |
|
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
456 |
home notNil ifTrue:[ |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
457 |
^ home method |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
458 |
]. |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
459 |
^ nil |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
460 |
|
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
461 |
"Created: 19.6.1997 / 16:14:57 / cg" |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
462 |
! |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
463 |
|
161 | 464 |
method |
465 |
"return the receivers method |
|
2694
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
466 |
(the method where the block was created). |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
467 |
Obsolete: use #homeMethod for ST80 compatibility." |
161 | 468 |
|
2694
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
469 |
^ self homeMethod |
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
470 |
|
46ba8cbdc013
added #homeMethod for ST80 compatibility
Claus Gittinger <cg@exept.de>
parents:
2542
diff
changeset
|
471 |
"Modified: 19.6.1997 / 16:15:24 / cg" |
623 | 472 |
! |
11 | 473 |
|
623 | 474 |
methodHome |
475 |
"return the receivers method home context (the context where it was |
|
476 |
defined). For cheap blocks, nil is returned" |
|
477 |
||
478 |
home notNil ifTrue:[ |
|
479 |
^ home methodHome |
|
480 |
]. |
|
481 |
^ home |
|
11 | 482 |
! |
483 |
||
623 | 484 |
numArgs |
485 |
"return the number of arguments I expect for evaluation" |
|
1 | 486 |
|
623 | 487 |
^ nargs |
488 |
! ! |
|
1 | 489 |
|
2237
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
490 |
!Block methodsFor:'conversion'! |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
491 |
|
5349 | 492 |
asVarArgBlock |
2237
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
493 |
"convert myself into a varArg block; |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
494 |
this one has 1 formal argument, which gets the list |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
495 |
of actual arguments when evaluated." |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
496 |
|
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
497 |
nargs ~~ 1 ifTrue:[ |
2241 | 498 |
self error:'vararg blocks must take exactly 1 argument - the arg list'. |
499 |
^ nil |
|
2237
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
500 |
]. |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
501 |
|
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
502 |
self changeClassTo:VarArgBlock. |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
503 |
^ self |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
504 |
|
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
505 |
" |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
506 |
|b| |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
507 |
|
5349 | 508 |
b := [:argList | Transcript |
509 |
show:'invoked with args:'; |
|
510 |
showCR:argList |
|
511 |
] asVarArgBlock. |
|
512 |
b value. |
|
513 |
b value:'arg1'. |
|
514 |
b value:'arg1' value:'arg2' value:'arg3' value:'arg4' |
|
515 |
" |
|
516 |
||
517 |
"Created: 23.1.1997 / 13:35:28 / cg" |
|
518 |
"Modified: 23.1.1997 / 13:35:48 / cg" |
|
519 |
! |
|
520 |
||
521 |
beVarArg |
|
522 |
"convert myself into a varArg block; |
|
523 |
this one has 1 formal argument, which gets the list |
|
524 |
of actual arguments when evaluated." |
|
525 |
||
526 |
^ self asVarArgBlock. |
|
527 |
||
528 |
" |
|
529 |
|b| |
|
530 |
||
2241 | 531 |
b := [:argList | argList printCR] beVarArg. |
2237
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
532 |
b value. |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
533 |
b value:'arg1' value:'arg2' value:'arg3' value:'arg4' |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
534 |
" |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
535 |
|
2241 | 536 |
"Created: 23.1.1997 / 13:35:28 / cg" |
537 |
"Modified: 23.1.1997 / 13:35:48 / cg" |
|
2237
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
538 |
! ! |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
539 |
|
623 | 540 |
!Block methodsFor:'copying'! |
1 | 541 |
|
3349
84a92126a268
must catch #deppCopyUsing: instead of #deepCopy.
Claus Gittinger <cg@exept.de>
parents:
2841
diff
changeset
|
542 |
deepCopyUsing:aDictionary |
623 | 543 |
"raise an error - deepCopy is not allowed for blocks" |
1 | 544 |
|
623 | 545 |
^ self deepCopyError |
3349
84a92126a268
must catch #deppCopyUsing: instead of #deepCopy.
Claus Gittinger <cg@exept.de>
parents:
2841
diff
changeset
|
546 |
|
84a92126a268
must catch #deppCopyUsing: instead of #deepCopy.
Claus Gittinger <cg@exept.de>
parents:
2841
diff
changeset
|
547 |
"Created: / 31.3.1998 / 15:46:17 / cg" |
1 | 548 |
! ! |
549 |
||
550 |
!Block methodsFor:'error handling'! |
|
551 |
||
328 | 552 |
invalidCodeObject |
1874 | 553 |
"{ Pragma: +optSpace }" |
554 |
||
67 | 555 |
"this error is triggered by the interpreter when a non-Block object |
556 |
is about to be executed. |
|
557 |
In this case, the VM sends this to the bad method (the receiver). |
|
558 |
Can only happen when the Compiler/runtime system is broken or |
|
559 |
someone played around." |
|
1 | 560 |
|
128 | 561 |
^ InvalidCodeSignal |
2238 | 562 |
raiseRequestWith:self |
563 |
errorString:'invalid block - not executable' |
|
1874 | 564 |
|
565 |
"Modified: 4.11.1996 / 22:46:39 / cg" |
|
1 | 566 |
! ! |
567 |
||
568 |
!Block methodsFor:'evaluation'! |
|
569 |
||
570 |
value |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
571 |
"evaluate the receiver with no block args. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
572 |
The receiver must be a block without arguments." |
1 | 573 |
|
574 |
%{ /* NOCONTEXT */ |
|
575 |
||
576 |
REGISTER OBJFUNC thecode; |
|
577 |
OBJ home; |
|
578 |
||
1133 | 579 |
if (__INST(nargs) == __MKSMALLINT(0)) { |
1 | 580 |
#if defined(THIS_CONTEXT) |
328 | 581 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 582 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 583 |
#endif |
328 | 584 |
|
1133 | 585 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 586 |
#ifdef NEW_BLOCK_CALL |
154 | 587 |
if (thecode != (OBJFUNC)nil) { |
588 |
/* compiled machine code */ |
|
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
589 |
RETURN ( (*thecode)(self) ); |
154 | 590 |
} |
591 |
/* interpreted code */ |
|
328 | 592 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
593 |
RETURN ( __interpret(self, 0, nil, nil, nil, nil) ); |
328 | 594 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
595 |
RETURN ( __interpret(self, 0, nil, nil, nil, nil) ); |
328 | 596 |
# endif |
11 | 597 |
#else |
1133 | 598 |
home = __BlockInstPtr(self)->b_home; |
154 | 599 |
if (thecode != (OBJFUNC)nil) { |
600 |
/* compiled machine code */ |
|
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
601 |
RETURN ( (*thecode)(home) ); |
154 | 602 |
} |
603 |
/* interpreted code */ |
|
328 | 604 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
605 |
RETURN ( __interpret(self, 0, nil, home, nil, nil) ); |
328 | 606 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
607 |
RETURN ( __interpret(self, 0, nil, home, nil, nil) ); |
328 | 608 |
# endif |
11 | 609 |
#endif |
1 | 610 |
} |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
611 |
%}. |
103 | 612 |
^ self wrongNumberOfArguments:0 |
1 | 613 |
! |
614 |
||
615 |
value:arg |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
616 |
"evaluate the receiver with one argument. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
617 |
The receiver must be a 1-arg block." |
1 | 618 |
|
619 |
%{ /* NOCONTEXT */ |
|
620 |
||
621 |
REGISTER OBJFUNC thecode; |
|
622 |
OBJ home; |
|
623 |
||
1133 | 624 |
if (__INST(nargs) == __MKSMALLINT(1)) { |
1 | 625 |
#if defined(THIS_CONTEXT) |
328 | 626 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 627 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 628 |
#endif |
1133 | 629 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 630 |
#ifdef NEW_BLOCK_CALL |
154 | 631 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
632 |
RETURN ( (*thecode)(self, arg) ); |
154 | 633 |
} |
634 |
/* interpreted code */ |
|
328 | 635 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
636 |
RETURN ( __interpret(self, 1, nil, nil, nil, nil, &arg) ); |
328 | 637 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
638 |
RETURN ( __interpret(self, 1, nil, nil, nil, nil, arg) ); |
328 | 639 |
# endif |
1 | 640 |
#else |
1133 | 641 |
home = __BlockInstPtr(self)->b_home; |
154 | 642 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
643 |
RETURN ( (*thecode)(home, arg) ); |
154 | 644 |
} |
645 |
/* interpreted code */ |
|
328 | 646 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
647 |
RETURN ( __interpret(self, 1, nil, home, nil, nil, &arg) ); |
328 | 648 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
649 |
RETURN ( __interpret(self, 1, nil, home, nil, nil, arg) ); |
328 | 650 |
# endif |
1 | 651 |
#endif |
652 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
653 |
%}. |
103 | 654 |
^ self wrongNumberOfArguments:1 |
1 | 655 |
! |
656 |
||
657 |
value:arg1 value:arg2 |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
658 |
"evaluate the receiver with two arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
659 |
The receiver must be a 2-arg block." |
1 | 660 |
|
661 |
%{ /* NOCONTEXT */ |
|
662 |
||
663 |
REGISTER OBJFUNC thecode; |
|
664 |
OBJ home; |
|
665 |
||
1133 | 666 |
if (__INST(nargs) == __MKSMALLINT(2)) { |
1 | 667 |
#if defined(THIS_CONTEXT) |
328 | 668 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 669 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 670 |
#endif |
1133 | 671 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 672 |
#ifdef NEW_BLOCK_CALL |
154 | 673 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
674 |
RETURN ( (*thecode)(self, arg1, arg2) ); |
154 | 675 |
} |
328 | 676 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
677 |
RETURN ( __interpret(self, 2, nil, nil, nil, nil, &arg1) ); |
328 | 678 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
679 |
RETURN ( __interpret(self, 2, nil, nil, nil, nil, arg1, arg2) ); |
328 | 680 |
# endif |
1 | 681 |
#else |
1133 | 682 |
home = __BlockInstPtr(self)->b_home; |
154 | 683 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
684 |
RETURN ( (*thecode)(home, arg1, arg2) ); |
154 | 685 |
} |
328 | 686 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
687 |
RETURN ( __interpret(self, 2, nil, home, nil, nil, &arg1) ); |
328 | 688 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
689 |
RETURN ( __interpret(self, 2, nil, home, nil, nil, arg1, arg2) ); |
328 | 690 |
# endif |
1 | 691 |
#endif |
692 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
693 |
%}. |
103 | 694 |
^ self wrongNumberOfArguments:2 |
1 | 695 |
! |
696 |
||
697 |
value:arg1 value:arg2 value:arg3 |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
698 |
"evaluate the receiver with three arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
699 |
The receiver must be a 3-arg block." |
1 | 700 |
|
701 |
%{ /* NOCONTEXT */ |
|
702 |
||
703 |
REGISTER OBJFUNC thecode; |
|
704 |
OBJ home; |
|
705 |
||
1133 | 706 |
if (__INST(nargs) == __MKSMALLINT(3)) { |
1 | 707 |
#if defined(THIS_CONTEXT) |
328 | 708 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 709 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 710 |
#endif |
1133 | 711 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 712 |
#ifdef NEW_BLOCK_CALL |
154 | 713 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
714 |
RETURN ( (*thecode)(self, arg1, arg2, arg3) ); |
154 | 715 |
} |
328 | 716 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
717 |
RETURN ( __interpret(self, 3, nil, nil, nil, nil, &arg1) ); |
328 | 718 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
719 |
RETURN ( __interpret(self, 3, nil, nil, nil, nil, arg1, arg2, arg3) ); |
328 | 720 |
# endif |
1 | 721 |
#else |
1133 | 722 |
home = __BlockInstPtr(self)->b_home; |
154 | 723 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
724 |
RETURN ( (*thecode)(home, arg1, arg2, arg3) ); |
154 | 725 |
} |
328 | 726 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
727 |
RETURN ( __interpret(self, 3, nil, home, nil, nil, &arg1) ); |
328 | 728 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
729 |
RETURN ( __interpret(self, 3, nil, home, nil, nil, arg1, arg2, arg3) ); |
328 | 730 |
# endif |
1 | 731 |
#endif |
732 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
733 |
%}. |
103 | 734 |
^ self wrongNumberOfArguments:3 |
1 | 735 |
! |
736 |
||
737 |
value:arg1 value:arg2 value:arg3 value:arg4 |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
738 |
"evaluate the receiver with four arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
739 |
The receiver must be a 4-arg block." |
1 | 740 |
|
741 |
%{ /* NOCONTEXT */ |
|
742 |
||
743 |
REGISTER OBJFUNC thecode; |
|
744 |
OBJ home; |
|
745 |
||
1133 | 746 |
if (__INST(nargs) == __MKSMALLINT(4)) { |
1 | 747 |
#if defined(THIS_CONTEXT) |
328 | 748 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 749 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 750 |
#endif |
1133 | 751 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 752 |
#ifdef NEW_BLOCK_CALL |
154 | 753 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
754 |
RETURN ( (*thecode)(self, arg1, arg2, arg3, arg4) ); |
154 | 755 |
} |
328 | 756 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
757 |
RETURN ( __interpret(self, 4, nil, nil, nil, nil, &arg1) ); |
328 | 758 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
759 |
RETURN ( __interpret(self, 4, nil, nil, nil, nil, arg1, arg2, arg3, arg4) ); |
328 | 760 |
# endif |
1 | 761 |
#else |
1133 | 762 |
home = __BlockInstPtr(self)->b_home; |
154 | 763 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
764 |
RETURN ( (*thecode)(home, arg1, arg2, arg3, arg4) ); |
154 | 765 |
} |
328 | 766 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
767 |
RETURN ( __interpret(self, 4, nil, home, nil, nil, &arg1) ); |
328 | 768 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
769 |
RETURN ( __interpret(self, 4, nil, home, nil, nil, arg1, arg2, arg3, arg4) ); |
328 | 770 |
# endif |
1 | 771 |
#endif |
772 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
773 |
%}. |
103 | 774 |
^ self wrongNumberOfArguments:4 |
1 | 775 |
! |
776 |
||
777 |
value:arg1 value:arg2 value:arg3 value:arg4 value:arg5 |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
778 |
"evaluate the receiver with five arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
779 |
The receiver must be a 5-arg block." |
1 | 780 |
|
781 |
%{ /* NOCONTEXT */ |
|
782 |
||
783 |
REGISTER OBJFUNC thecode; |
|
784 |
OBJ home; |
|
785 |
||
1133 | 786 |
if (__INST(nargs) == __MKSMALLINT(5)) { |
1 | 787 |
#if defined(THIS_CONTEXT) |
328 | 788 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 789 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 790 |
#endif |
1133 | 791 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 792 |
#ifdef NEW_BLOCK_CALL |
154 | 793 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
794 |
RETURN ( (*thecode)(self, arg1, arg2, arg3, arg4, arg5) ); |
154 | 795 |
} |
328 | 796 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
797 |
RETURN ( __interpret(self, 5, nil, nil, nil, nil, &arg1) ); |
328 | 798 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
799 |
RETURN ( __interpret(self, 5, nil, nil, nil, nil, arg1, arg2, arg3, arg4, arg5) ); |
328 | 800 |
# endif |
1 | 801 |
#else |
1133 | 802 |
home = __BlockInstPtr(self)->b_home; |
154 | 803 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
804 |
RETURN ( (*thecode)(home, arg1, arg2, arg3, arg4, arg5) ); |
154 | 805 |
} |
328 | 806 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
807 |
RETURN ( __interpret(self, 5, nil, home, nil, nil, &arg1) ); |
328 | 808 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
809 |
RETURN ( __interpret(self, 5, nil, home, nil, nil, arg1, arg2, arg3, arg4, arg5) ); |
328 | 810 |
# endif |
1 | 811 |
#endif |
812 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
813 |
%}. |
103 | 814 |
^ self wrongNumberOfArguments:5 |
1 | 815 |
! |
816 |
||
817 |
value:arg1 value:arg2 value:arg3 value:arg4 value:arg5 value:arg6 |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
818 |
"evaluate the receiver with six arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
819 |
The receiver must be a 6-arg block." |
1 | 820 |
|
821 |
%{ /* NOCONTEXT */ |
|
822 |
||
823 |
REGISTER OBJFUNC thecode; |
|
824 |
OBJ home; |
|
825 |
||
1133 | 826 |
if (__INST(nargs) == __MKSMALLINT(6)) { |
1 | 827 |
#if defined(THIS_CONTEXT) |
328 | 828 |
if (__ISVALID_ILC_LNO(__pilc)) |
1133 | 829 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 830 |
#endif |
1133 | 831 |
thecode = __BlockInstPtr(self)->b_code; |
11 | 832 |
#ifdef NEW_BLOCK_CALL |
154 | 833 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
834 |
RETURN ( (*thecode)(self, arg1, arg2, arg3, arg4, arg5, arg6) ); |
154 | 835 |
} |
328 | 836 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
837 |
RETURN ( __interpret(self, 6, nil, nil, nil, nil, &arg1) ); |
328 | 838 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
839 |
RETURN ( __interpret(self, 6, nil, nil, nil, nil, arg1, arg2, arg3, arg4, arg5, arg6) ); |
328 | 840 |
# endif |
1 | 841 |
#else |
1133 | 842 |
home = __BlockInstPtr(self)->b_home; |
154 | 843 |
if (thecode != (OBJFUNC)nil) { |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
844 |
RETURN ( (*thecode)(home, arg1, arg2, arg3, arg4, arg5, arg6) ); |
154 | 845 |
} |
328 | 846 |
# ifdef PASS_ARG_POINTER |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
847 |
RETURN ( __interpret(self, 6, nil, home, nil, nil, &arg1) ); |
328 | 848 |
# else |
2201
db0f6e86c8bb
COMMA_SENDER arg is no longer supported / needed
Claus Gittinger <cg@exept.de>
parents:
1979
diff
changeset
|
849 |
RETURN ( __interpret(self, 6, nil, home, nil, nil, arg1, arg2, arg3, arg4, arg5, arg6) ); |
328 | 850 |
# endif |
1 | 851 |
#endif |
852 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
853 |
%}. |
103 | 854 |
^ self wrongNumberOfArguments:6 |
1 | 855 |
! |
856 |
||
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
857 |
value:arg1 value:arg2 value:arg3 value:arg4 value:arg5 value:arg6 value:arg7 |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
858 |
"evaluate the receiver with seven arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
859 |
The receiver must be a 7-arg block." |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
860 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
861 |
%{ /* NOCONTEXT */ |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
862 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
863 |
REGISTER OBJFUNC thecode; |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
864 |
OBJ home; |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
865 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
866 |
if (__INST(nargs) == __MKSMALLINT(7)) { |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
867 |
#if defined(THIS_CONTEXT) |
2238 | 868 |
if (__ISVALID_ILC_LNO(__pilc)) |
869 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
870 |
#endif |
2238 | 871 |
thecode = __BlockInstPtr(self)->b_code; |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
872 |
#ifdef NEW_BLOCK_CALL |
2238 | 873 |
if (thecode != (OBJFUNC)nil) { |
874 |
RETURN ( (*thecode)(self, arg1, arg2, arg3, arg4, arg5, arg6, arg7) ); |
|
875 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
876 |
# ifdef PASS_ARG_POINTER |
2238 | 877 |
RETURN ( __interpret(self, 7, nil, nil, nil, nil, &arg1) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
878 |
# else |
2238 | 879 |
RETURN ( __interpret(self, 7, nil, nil, nil, nil, arg1, arg2, arg3, arg4, arg5, arg6, arg7) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
880 |
# endif |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
881 |
#else |
2238 | 882 |
home = __BlockInstPtr(self)->b_home; |
883 |
if (thecode != (OBJFUNC)nil) { |
|
884 |
RETURN ( (*thecode)(home, arg1, arg2, arg3, arg4, arg5, arg6, arg7) ); |
|
885 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
886 |
# ifdef PASS_ARG_POINTER |
2238 | 887 |
RETURN ( __interpret(self, 7, nil, home, nil, nil, &arg1) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
888 |
# else |
2238 | 889 |
RETURN ( __interpret(self, 7, nil, home, nil, nil, arg1, arg2, arg3, arg4, arg5, arg6, arg7) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
890 |
# endif |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
891 |
#endif |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
892 |
} |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
893 |
%}. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
894 |
^ self wrongNumberOfArguments:7 |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
895 |
! |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
896 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
897 |
value:arg1 value:arg2 value:arg3 value:arg4 value:arg5 value:arg6 value:arg7 value:arg8 |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
898 |
"evaluate the receiver with eight arguments. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
899 |
The receiver must be a 8-arg block." |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
900 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
901 |
%{ /* NOCONTEXT */ |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
902 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
903 |
REGISTER OBJFUNC thecode; |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
904 |
OBJ home; |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
905 |
|
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
906 |
if (__INST(nargs) == __MKSMALLINT(8)) { |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
907 |
#if defined(THIS_CONTEXT) |
2238 | 908 |
if (__ISVALID_ILC_LNO(__pilc)) |
909 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
910 |
#endif |
2238 | 911 |
thecode = __BlockInstPtr(self)->b_code; |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
912 |
#ifdef NEW_BLOCK_CALL |
2238 | 913 |
if (thecode != (OBJFUNC)nil) { |
914 |
RETURN ( (*thecode)(self, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) ); |
|
915 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
916 |
# ifdef PASS_ARG_POINTER |
2238 | 917 |
RETURN ( __interpret(self, 8, nil, nil, nil, nil, &arg1) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
918 |
# else |
2238 | 919 |
RETURN ( __interpret(self, 8, nil, nil, nil, nil, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
920 |
# endif |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
921 |
#else |
2238 | 922 |
home = __BlockInstPtr(self)->b_home; |
923 |
if (thecode != (OBJFUNC)nil) { |
|
924 |
RETURN ( (*thecode)(home, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) ); |
|
925 |
} |
|
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
926 |
# ifdef PASS_ARG_POINTER |
2238 | 927 |
RETURN ( __interpret(self, 8, nil, home, nil, nil, &arg1) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
928 |
# else |
2238 | 929 |
RETURN ( __interpret(self, 8, nil, home, nil, nil, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) ); |
1605
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
930 |
# endif |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
931 |
#endif |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
932 |
} |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
933 |
%}. |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
934 |
^ self wrongNumberOfArguments:8 |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
935 |
! |
61def0ffbdd6
added value:...value: with 7 and 8 args
Claus Gittinger <cg@exept.de>
parents:
1493
diff
changeset
|
936 |
|
3688 | 937 |
valueAt:priority |
938 |
"evaluate the receiver, at the given prioriy; |
|
939 |
i.e. change the priority for the execution of the receiver." |
|
940 |
||
941 |
|oldPrio retVal| |
|
942 |
||
943 |
oldPrio := Processor activePriority. |
|
944 |
[ |
|
945 |
Processor activeProcess priority:priority. |
|
946 |
retVal := self value. |
|
947 |
] valueNowOrOnUnwindDo:[ |
|
948 |
Processor activeProcess priority:oldPrio |
|
949 |
]. |
|
950 |
^ retVal |
|
951 |
||
952 |
" |
|
953 |
[ |
|
954 |
1000 timesRepeat:[ |
|
955 |
1000 factorial |
|
956 |
] |
|
957 |
] valueAt:3 |
|
958 |
" |
|
959 |
||
960 |
"Created: / 29.7.1998 / 19:19:48 / cg" |
|
961 |
! |
|
962 |
||
1 | 963 |
valueWithArguments:argArray |
964 |
"evaluate the receiver with arguments taken from argArray. |
|
313 | 965 |
ArgArray must be either an Array or nil. |
1 | 966 |
The size of the argArray must match the number of arguments the receiver expects." |
967 |
||
3497 | 968 |
|a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12| |
1 | 969 |
|
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
970 |
(argArray notNil and:[(argArray class ~~ Array) and:[argArray isArray not]]) ifTrue:[ |
3497 | 971 |
^ self badArgumentArry |
1 | 972 |
]. |
973 |
(argArray size == nargs) ifFalse:[ |
|
3497 | 974 |
^ self wrongNumberOfArguments:(argArray size) |
1 | 975 |
]. |
976 |
%{ |
|
977 |
||
978 |
REGISTER OBJFUNC thecode; |
|
979 |
OBJ home; |
|
67 | 980 |
REGISTER OBJ *ap; |
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
981 |
int __nargs; |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
982 |
OBJ nA; |
1 | 983 |
|
984 |
#if defined(THIS_CONTEXT) |
|
328 | 985 |
if (__ISVALID_ILC_LNO(__pilc)) |
3497 | 986 |
__ContextInstPtr(__thisContext)->c_lineno = __ILC_LNO_AS_OBJ(__pilc); |
1 | 987 |
#endif |
1133 | 988 |
thecode = __BlockInstPtr(self)->b_code; |
1037 | 989 |
|
990 |
#ifndef NEW_BLOCK_CALL |
|
1133 | 991 |
home = __BlockInstPtr(self)->b_home; |
1037 | 992 |
if (thecode != (OBJFUNC)nil) { |
3497 | 993 |
if ((nA = __INST(nargs)) == __MKSMALLINT(0)) { |
994 |
RETURN ( (*thecode)(home) ); |
|
995 |
} |
|
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
996 |
|
3497 | 997 |
switch (__intVal(__INST(nargs))) { |
998 |
default: |
|
999 |
goto error; |
|
1000 |
case 12: |
|
1001 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1002 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5], ap[6], ap[7], ap[8], ap[9], ap[10], ap[11]) ); |
|
1003 |
case 11: |
|
1004 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1005 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5], ap[6], ap[7], ap[8], ap[9], ap[10]) ); |
|
1006 |
case 10: |
|
1007 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1008 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5], ap[6], ap[7], ap[8], ap[9]) ); |
|
1009 |
case 9: |
|
1010 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1011 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5], ap[6], ap[7], ap[8]) ); |
|
1012 |
case 8: |
|
1013 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1014 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5], ap[6], ap[7]) ); |
|
1015 |
case 7: |
|
1016 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1017 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5], ap[6]) ); |
|
1018 |
case 6: |
|
1019 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1020 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4], ap[5]) ); |
|
1021 |
case 5: |
|
1022 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1023 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3], ap[4]) ); |
|
1024 |
case 4: |
|
1025 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1026 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2], ap[3]) ); |
|
1027 |
case 3: |
|
1028 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1029 |
RETURN ( (*thecode)(home, ap[0], ap[1], ap[2]) ); |
|
1030 |
case 2: |
|
1031 |
ap = __ArrayInstPtr(argArray)->a_element; |
|
1032 |
RETURN ( (*thecode)(home, ap[0], ap[1]) ); |
|
1033 |
case 1: |
|
1034 |
RETURN ( (*thecode)(home, __ArrayInstPtr(argArray)->a_element[0]) ); |
|
1035 |
case 0: |
|
1036 |
RETURN ( (*thecode)(home) ); |
|
1037 |
break; |
|
1038 |
} |
|
1037 | 1039 |
} |
1040 |
#endif |
|
1041 |
||
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1042 |
__nargs = __intVal(__INST(nargs)); |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1043 |
if (__nargs) { |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1044 |
switch (__nargs) { |
3497 | 1045 |
default: |
1046 |
goto error; |
|
1047 |
case 12: |
|
1048 |
a12 = __ArrayInstPtr(argArray)->a_element[11]; |
|
1049 |
case 11: |
|
1050 |
a11 = __ArrayInstPtr(argArray)->a_element[10]; |
|
1051 |
case 10: |
|
1052 |
a10 = __ArrayInstPtr(argArray)->a_element[9]; |
|
1053 |
case 9: |
|
1054 |
a9 = __ArrayInstPtr(argArray)->a_element[8]; |
|
1055 |
case 8: |
|
1056 |
a8 = __ArrayInstPtr(argArray)->a_element[7]; |
|
1057 |
case 7: |
|
1058 |
a7 = __ArrayInstPtr(argArray)->a_element[6]; |
|
1059 |
case 6: |
|
1060 |
a6 = __ArrayInstPtr(argArray)->a_element[5]; |
|
1061 |
case 5: |
|
1062 |
a5 = __ArrayInstPtr(argArray)->a_element[4]; |
|
1063 |
case 4: |
|
1064 |
a4 = __ArrayInstPtr(argArray)->a_element[3]; |
|
1065 |
case 3: |
|
1066 |
a3 = __ArrayInstPtr(argArray)->a_element[2]; |
|
1067 |
case 2: |
|
1068 |
a2 = __ArrayInstPtr(argArray)->a_element[1]; |
|
1069 |
case 1: |
|
1070 |
a1 = __ArrayInstPtr(argArray)->a_element[0]; |
|
1071 |
case 0: |
|
1072 |
break; |
|
1073 |
} |
|
1 | 1074 |
} |
1133 | 1075 |
|
11 | 1076 |
#ifdef NEW_BLOCK_CALL |
1 | 1077 |
if (thecode != (OBJFUNC)nil) { |
3497 | 1078 |
RETURN ( (*thecode)(self, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) ); |
11 | 1079 |
} |
328 | 1080 |
# ifdef PASS_ARG_POINTER |
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1081 |
RETURN ( __interpret(self, __nargs, nil, nil, nil, nil, &a1) ); |
328 | 1082 |
# else |
3497 | 1083 |
RETURN ( __interpret(self, __nargs, nil, nil, nil, nil, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) ); |
328 | 1084 |
# endif |
1037 | 1085 |
|
1 | 1086 |
#else |
1037 | 1087 |
|
328 | 1088 |
# ifdef PASS_ARG_POINTER |
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1089 |
RETURN ( __interpret(self, __nargs, nil, home, nil, nil, &a1) ); |
328 | 1090 |
# else |
3497 | 1091 |
RETURN ( __interpret(self, __nargs, nil, home, nil, nil, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) ); |
328 | 1092 |
# endif |
1037 | 1093 |
|
1 | 1094 |
#endif |
67 | 1095 |
|
11 | 1096 |
error: ; |
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1097 |
%}. |
138 | 1098 |
" |
3497 | 1099 |
the above code only supports up-to 12 arguments |
138 | 1100 |
" |
128 | 1101 |
^ ArgumentSignal |
3497 | 1102 |
raiseRequestWith:self |
1103 |
errorString:'only blocks with up-to 12 arguments supported' |
|
154 | 1104 |
! ! |
1105 |
||
4464
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1106 |
!Block methodsFor:'exception handling'! |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1107 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1108 |
handlerForSignal:signal context:theContext originator:originator |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1109 |
"answer the handler block for the signal from originator. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1110 |
The handler block is retrieved from aContext. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1111 |
Answer nil if the signal is not handled." |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1112 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1113 |
|sig handler| |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1114 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1115 |
theContext selector == #on:do: ifTrue:[ |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1116 |
sig := theContext argAt:1. |
4513 | 1117 |
(sig == signal or:[sig accepts:signal]) ifTrue:[ |
4471
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1118 |
handler := theContext argAt:2. |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1119 |
"/ this is for backward compatibility when no ex-arg |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1120 |
"/ is expected in the block. Is it worth the effort ? |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1121 |
handler numArgs == 0 ifTrue:[ |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1122 |
^ [:ex | handler value] |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1123 |
]. |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1124 |
^ handler |
4464
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1125 |
]. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1126 |
] ifFalse:[ |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1127 |
"must be #valueWithExceptionHandler:" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1128 |
handler := theContext argAt:1. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1129 |
^ handler handlerForSignal:signal. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1130 |
]. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1131 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1132 |
^ nil |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1133 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1134 |
"Created: / 25.7.1999 / 19:52:58 / stefan" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1135 |
"Modified: / 26.7.1999 / 14:30:42 / stefan" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1136 |
! |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1137 |
|
4542
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1138 |
handlerProtectedBlock:doBlock inContext:context |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1139 |
"set the handlerProtectedBlock in context. |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1140 |
Needed for #restartDo:" |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1141 |
|
4547
082a2f7d9d8e
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4542
diff
changeset
|
1142 |
"theContext selector must be #on:do: or #valueWithExceptionHandler:" |
4542
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1143 |
context receiver:doBlock |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1144 |
|
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1145 |
" |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1146 |
[1/0] on:Error do:[:ex| ex restartDo:[55]] |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1147 |
" |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1148 |
|
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1149 |
|
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1150 |
|
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1151 |
! |
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1152 |
|
4476 | 1153 |
handlingExceptionInContext:theContext |
4471
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1154 |
"answer the handling signal from aContext." |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1155 |
|
4547
082a2f7d9d8e
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4542
diff
changeset
|
1156 |
"theContext selector must be #on:do: or #valueWithExceptionHandler:" |
082a2f7d9d8e
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4542
diff
changeset
|
1157 |
^ theContext argAt:1. |
4471
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1158 |
|
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1159 |
! |
f5ca98d3a5d9
added #handlingSignalInContext:
Claus Gittinger <cg@exept.de>
parents:
4464
diff
changeset
|
1160 |
|
4464
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1161 |
on:aSignal do:exceptionBlock |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1162 |
"added for ST/V compatibility; evaluate the receiver, |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1163 |
handling aSignal. The argument, exceptionBlock is evaluated |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1164 |
if the signal is raised during evaluation. |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1165 |
Warning: no warranty, if the code below mimics ST/V's behavior |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1166 |
correctly - give me a note if it does not ." |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1167 |
|
4542
5dc47816cf68
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4513
diff
changeset
|
1168 |
<context: #return> |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1169 |
<exception: #handle> |
4464
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1170 |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1171 |
"/ thisContext markForHandle. -- same as above pragma |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1172 |
^ self value. "the real logic is in Exception>>doRaise" |
4464
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1173 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1174 |
" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1175 |
[ |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1176 |
1 foo |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1177 |
] on:MessageNotUnderstoodSignal do:[:ex | self halt] |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1178 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1179 |
[ |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1180 |
1 foo |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1181 |
] on:SignalSet anySignal do:[:ex| 2 bar. self halt] |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1182 |
" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1183 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1184 |
"Modified: / 26.7.1999 / 15:30:48 / stefan" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1185 |
! |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1186 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1187 |
valueWithExceptionHandler:handler |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1188 |
"evaluate myself. If any of the signals in handler is raised, |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1189 |
evaluate the corresponding handler block." |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1190 |
|
4547
082a2f7d9d8e
Add #handlerProtectedBlock:inContext
Stefan Vogel <sv@exept.de>
parents:
4542
diff
changeset
|
1191 |
<context: #return> |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1192 |
<exception: #handle> |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1193 |
|
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1194 |
"/ thisContext markForHandle. -- same as above pragma |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1195 |
^ self value. "the real logic is in Exception>>doRaise" |
4464
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1196 |
|
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1197 |
"Created: / 26.7.1999 / 11:23:45 / stefan" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1198 |
"Modified: / 26.7.1999 / 11:24:06 / stefan" |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1199 |
! ! |
cec93c942c14
Use context flag for exception handling instead of searching for
Stefan Vogel <sv@exept.de>
parents:
4419
diff
changeset
|
1200 |
|
623 | 1201 |
!Block methodsFor:'looping'! |
325 | 1202 |
|
623 | 1203 |
doUntil:aBlock |
1204 |
"repeat the receiver block until aBlock evaluates to true. |
|
1205 |
The receiver is evaluated at least once. |
|
1206 |
This is the same as '... doWhile:[... not]' " |
|
325 | 1207 |
|
623 | 1208 |
"this implementation is for purists ... :-)" |
1209 |
||
1210 |
self value. |
|
1211 |
aBlock value ifTrue:[^ nil]. |
|
1212 |
thisContext restart |
|
325 | 1213 |
|
1214 |
" |
|
623 | 1215 |
|n| |
154 | 1216 |
|
623 | 1217 |
n := 1. |
1218 |
[n printNewline] doUntil:[ (n := n + 1) > 5 ] |
|
154 | 1219 |
" |
1 | 1220 |
! |
1221 |
||
623 | 1222 |
doWhile:aBlock |
1223 |
"repeat the receiver block until aBlock evaluates to false. |
|
1224 |
The receiver is evaluated at least once." |
|
67 | 1225 |
|
154 | 1226 |
"this implementation is for purists ... :-)" |
1227 |
||
623 | 1228 |
self value. |
1229 |
aBlock value ifFalse:[^ nil]. |
|
1230 |
thisContext restart |
|
1231 |
||
1232 |
" |
|
1233 |
|n| |
|
1234 |
||
1235 |
n := 1. |
|
1236 |
[n printNewline] doWhile:[ (n := n + 1) <= 5 ] |
|
1237 |
" |
|
1238 |
! |
|
1239 |
||
1240 |
loop |
|
1211 | 1241 |
"repeat the receiver forever |
1242 |
(the receiver block should contain a return somewhere). |
|
1243 |
The implementation below was inspired by a corresponding Self method." |
|
623 | 1244 |
|
1245 |
self value. |
|
67 | 1246 |
thisContext restart |
1247 |
||
1248 |
" |
|
1249 |
|n| |
|
1250 |
||
1251 |
n := 1. |
|
623 | 1252 |
[ |
2238 | 1253 |
n printNewline. |
1254 |
n >= 10 ifTrue:[^ nil]. |
|
1255 |
n := n + 1 |
|
623 | 1256 |
] loop |
1257 |
" |
|
1211 | 1258 |
|
1259 |
"Modified: 18.4.1996 / 13:50:40 / cg" |
|
623 | 1260 |
! |
1261 |
||
1262 |
loopWithExit |
|
1263 |
"the receiver must be a block of one argument. It is evaluated in a loop forever, |
|
1264 |
and is passed a block, which, if sent a value:-message, will exit the receiver block, |
|
1265 |
returning the parameter of the value:-message. Used for loops with exit in the middle. |
|
1266 |
Inspired by a corresponding Self method." |
|
1267 |
||
1268 |
|exitBlock| |
|
1269 |
||
1270 |
exitBlock := [:exitValue | ^ exitValue]. |
|
1271 |
[true] whileTrue:[self value:exitBlock] |
|
1272 |
||
1273 |
" |
|
1274 |
|i| |
|
1275 |
i := 1. |
|
1276 |
[:exit | |
|
1422 | 1277 |
Transcript showCR:i. |
623 | 1278 |
i == 5 ifTrue:[exit value:'thats it']. |
1279 |
i := i + 1 |
|
1280 |
] loopWithExit |
|
1281 |
" |
|
1282 |
! |
|
1283 |
||
1284 |
repeat |
|
1211 | 1285 |
"repeat the receiver forever - same as loop, for ST-80 compatibility. |
1286 |
(the receiver block should contain a return somewhere)." |
|
623 | 1287 |
|
1288 |
self value. |
|
1289 |
thisContext restart |
|
1211 | 1290 |
|
1291 |
"Modified: 18.4.1996 / 13:50:55 / cg" |
|
623 | 1292 |
! |
1293 |
||
1294 |
valueWithExit |
|
1295 |
"the receiver must be a block of one argument. It is evaluated, and is passed a block, |
|
1296 |
which, if sent a value:-message, will exit the receiver block, returning the parameter of the |
|
1297 |
value:-message. Used for premature returns to the caller. |
|
1298 |
Taken from a manchester goody (a similar construct also appears in Self)." |
|
1299 |
||
1211 | 1300 |
^ self value:[:exitValue | ^exitValue] |
623 | 1301 |
|
1302 |
" |
|
1303 |
[:exit | |
|
2238 | 1304 |
1 to:10 do:[:i | |
1305 |
Transcript showCR:i. |
|
1306 |
i == 5 ifTrue:[exit value:'thats it'] |
|
1307 |
]. |
|
1308 |
'regular block-value; never returned' |
|
623 | 1309 |
] valueWithExit |
1310 |
" |
|
1211 | 1311 |
|
1312 |
"Modified: 18.4.1996 / 13:51:38 / cg" |
|
623 | 1313 |
! |
1314 |
||
5215 | 1315 |
valueWithRestart |
1316 |
|myContext restartAction| |
|
1317 |
||
1318 |
myContext := thisContext. |
|
1319 |
restartAction := [ myContext restart ]. |
|
1320 |
^ self value:restartAction. |
|
1321 |
||
1322 |
" |
|
1323 |
[:restart | |
|
1324 |
(self confirm:'try again ?') ifTrue:[ |
|
1325 |
restart value. |
|
1326 |
] |
|
1327 |
] valueWithRestart |
|
1328 |
" |
|
1329 |
||
1330 |
"Modified: / 25.1.2000 / 21:47:50 / cg" |
|
1331 |
! |
|
1332 |
||
623 | 1333 |
whileFalse |
1334 |
"evaluate the receiver while it evaluates to false (ST80 compatibility)" |
|
1335 |
||
1336 |
"this implementation is for purists ... :-)" |
|
1337 |
||
1338 |
self value ifTrue:[^ nil]. |
|
1339 |
thisContext restart |
|
1340 |
||
1341 |
" |
|
1342 |
|n| |
|
1343 |
||
1344 |
n := 1. |
|
1345 |
[n printNewline. (n := n + 1) > 10] whileFalse |
|
67 | 1346 |
" |
1347 |
! |
|
1 | 1348 |
|
67 | 1349 |
whileFalse:aBlock |
1350 |
"evaluate the argument, aBlock while the receiver evaluates to false. |
|
1351 |
- usually open coded by compilers, but needed here for #perform |
|
1352 |
and expression evaluation." |
|
1353 |
||
154 | 1354 |
"this implementation is for purists ... :-)" |
1355 |
||
67 | 1356 |
self value ifTrue:[^ nil]. |
1357 |
aBlock value. |
|
1358 |
thisContext restart |
|
1359 |
||
1360 |
" |
|
1361 |
|n| |
|
1362 |
||
1363 |
n := 1. |
|
1364 |
[n > 10] whileFalse:[ |
|
154 | 1365 |
n printNewline. |
1366 |
n := n + 1 |
|
67 | 1367 |
] |
1368 |
" |
|
1 | 1369 |
! |
1370 |
||
1371 |
whileTrue |
|
67 | 1372 |
"evaluate the receiver while it evaluates to true (ST80 compatibility)" |
1 | 1373 |
|
154 | 1374 |
"this implementation is for purists ... :-)" |
1375 |
||
67 | 1376 |
self value ifFalse:[^ nil]. |
1377 |
thisContext restart |
|
1 | 1378 |
|
67 | 1379 |
" |
1380 |
|n| |
|
1 | 1381 |
|
67 | 1382 |
n := 1. |
1383 |
[n printNewline. (n := n + 1) <= 10] whileTrue |
|
1384 |
" |
|
1 | 1385 |
! |
1386 |
||
623 | 1387 |
whileTrue:aBlock |
1388 |
"evaluate the argument, aBlock while the receiver evaluates to true. |
|
1389 |
- usually open coded by compilers, but needed here for #perform |
|
1390 |
and expression evaluation." |
|
1 | 1391 |
|
154 | 1392 |
"this implementation is for purists ... :-)" |
1393 |
||
623 | 1394 |
self value ifFalse:[^ nil]. |
1395 |
aBlock value. |
|
67 | 1396 |
thisContext restart |
1397 |
||
1398 |
" |
|
1399 |
|n| |
|
1 | 1400 |
|
67 | 1401 |
n := 1. |
623 | 1402 |
[n <= 10] whileTrue:[ |
154 | 1403 |
n printNewline. |
1404 |
n := n + 1 |
|
623 | 1405 |
] |
68 | 1406 |
" |
67 | 1407 |
! ! |
1408 |
||
92 | 1409 |
!Block methodsFor:'printing & storing'! |
1 | 1410 |
|
1411 |
printOn:aStream |
|
44 | 1412 |
"append a a printed representation of the block to aStream" |
1413 |
||
213 | 1414 |
|homeClass h sel methodClass| |
54 | 1415 |
|
1416 |
"cheap blocks have no home context, but a method instead" |
|
1417 |
||
1418 |
(home isNil or:[home isContext not]) ifTrue:[ |
|
154 | 1419 |
aStream nextPutAll:'[] in '. |
1 | 1420 |
|
154 | 1421 |
" |
1422 |
currently, some cheap blocks don't know where they have been created |
|
1423 |
" |
|
1424 |
aStream nextPutAll:' ??? (optimized)'. |
|
1425 |
^ self |
|
54 | 1426 |
]. |
1427 |
||
1428 |
"a full blown block (with home, but without method)" |
|
1429 |
||
1430 |
aStream nextPutAll:'[] in '. |
|
154 | 1431 |
h := self methodHome. |
1432 |
sel := h selector. |
|
1433 |
"/ old: |
|
1434 |
"/ home receiver class name printOn:aStream. |
|
1435 |
"/ new: |
|
212 | 1436 |
"/ (h searchClass whichClassImplements:sel) name printOn:aStream. |
213 | 1437 |
methodClass := h methodClass. |
1438 |
methodClass isNil ifTrue:[ |
|
1439 |
'UnboundMethod' printOn:aStream. |
|
1440 |
] ifFalse:[ |
|
1441 |
methodClass name printOn:aStream. |
|
1442 |
]. |
|
54 | 1443 |
aStream nextPut:$-. |
154 | 1444 |
sel printOn:aStream. |
54 | 1445 |
|
2841
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1446 |
"/ |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1447 |
"/ aStream nextPutAll:'[] in '. |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1448 |
"/ homeClass := home containingClass. |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1449 |
"/ homeClass notNil ifTrue:[ |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1450 |
"/ homeClass name printOn:aStream. |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1451 |
"/ aStream space. |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1452 |
"/ (homeClass selectorForMethod:home) printOn:aStream |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1453 |
"/ ] ifFalse:[ |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1454 |
"/ aStream nextPutAll:' ???' |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1455 |
"/ ] |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1456 |
"/ |
d3cab7c7d334
allow non-array in valueWithArguments
Claus Gittinger <cg@exept.de>
parents:
2828
diff
changeset
|
1457 |
|
1 | 1458 |
! ! |
623 | 1459 |
|
1460 |
!Block methodsFor:'private accessing'! |
|
1461 |
||
2542
555749f035f4
need stackSize when creating blocks.
Claus Gittinger <cg@exept.de>
parents:
2301
diff
changeset
|
1462 |
byteCode:bCode numArgs:numArgs numStack:numStack sourcePosition:srcPos initialPC:iPC literals:lits |
1265 | 1463 |
"set all relevant internals. |
1773
442d1b73ecb9
no longer allow Blocks with a dynamic-bit to be created
Claus Gittinger <cg@exept.de>
parents:
1672
diff
changeset
|
1464 |
DANGER ALERT: this interface is strictly private." |
623 | 1465 |
|
1466 |
byteCode := bCode. |
|
1467 |
nargs := numArgs. |
|
1468 |
sourcePos := srcPos. |
|
1469 |
initialPC := iPC. |
|
1777 | 1470 |
flags := 0. |
2542
555749f035f4
need stackSize when creating blocks.
Claus Gittinger <cg@exept.de>
parents:
2301
diff
changeset
|
1471 |
self stackSize:numStack. |
1493
33e226c7d187
Move method's literals form literalArray to indexed instvars.
Stefan Vogel <sv@exept.de>
parents:
1422
diff
changeset
|
1472 |
self literals:lits. |
1265 | 1473 |
|
1474 |
"Modified: 23.4.1996 / 16:05:30 / cg" |
|
1493
33e226c7d187
Move method's literals form literalArray to indexed instvars.
Stefan Vogel <sv@exept.de>
parents:
1422
diff
changeset
|
1475 |
"Modified: 24.6.1996 / 12:37:37 / stefan" |
2542
555749f035f4
need stackSize when creating blocks.
Claus Gittinger <cg@exept.de>
parents:
2301
diff
changeset
|
1476 |
"Created: 13.4.1997 / 00:00:57 / cg" |
623 | 1477 |
! |
1478 |
||
1479 |
initialPC:initial |
|
1265 | 1480 |
"set the initial pc for evaluation. |
1481 |
DANGER ALERT: this interface is for the compiler only." |
|
623 | 1482 |
|
1483 |
initialPC := initial |
|
1265 | 1484 |
|
1485 |
"Modified: 23.4.1996 / 16:05:39 / cg" |
|
623 | 1486 |
! |
1487 |
||
1488 |
numArgs:numArgs |
|
1265 | 1489 |
"set the number of arguments the receiver expects for evaluation. |
1490 |
DANGER ALERT: this interface is for the compiler only." |
|
623 | 1491 |
|
1492 |
nargs := numArgs |
|
1265 | 1493 |
|
1494 |
"Modified: 23.4.1996 / 16:05:52 / cg" |
|
623 | 1495 |
! |
1496 |
||
5744 | 1497 |
setHome:aContext |
1498 |
home := aContext |
|
1499 |
! |
|
1500 |
||
623 | 1501 |
sourcePosition:position |
1265 | 1502 |
"set the position of the source within my method. |
1503 |
This interface is for the compiler only." |
|
623 | 1504 |
|
1505 |
sourcePos := position |
|
1265 | 1506 |
|
1507 |
"Modified: 23.4.1996 / 16:06:19 / cg" |
|
623 | 1508 |
! ! |
1509 |
||
1510 |
!Block methodsFor:'privileged evaluation'! |
|
1511 |
||
1512 |
valueUninterruptably |
|
1513 |
"evaluate the receiver with interrupts blocked. |
|
1514 |
This does not prevent preemption by a higher priority processes |
|
1515 |
if any becomes runnable due to the evaluation of the receiver |
|
1516 |
(i.e. if a semaphore is signalled)." |
|
1517 |
||
2301 | 1518 |
"we must keep track of blocking-state if this is called nested" |
1519 |
(OperatingSystem blockInterrupts) ifTrue:[ |
|
1520 |
"/ already blocked. |
|
1521 |
^ self value |
|
1522 |
]. |
|
864 | 1523 |
|
2301 | 1524 |
^ self valueNowOrOnUnwindDo:[OperatingSystem unblockInterrupts]. |
623 | 1525 |
! |
1526 |
||
1527 |
valueUnpreemptively |
|
1528 |
"evaluate the receiver without the possiblity of preemption |
|
1529 |
(i.e. at a very high priority)" |
|
1530 |
||
1531 |
|oldPrio activeProcess| |
|
1532 |
||
1533 |
activeProcess := Processor activeProcess. |
|
1534 |
oldPrio := activeProcess changePriority:(Processor highestPriority). |
|
864 | 1535 |
^ self valueNowOrOnUnwindDo:[ |
623 | 1536 |
activeProcess priority:oldPrio |
1537 |
] |
|
1538 |
! ! |
|
1539 |
||
1540 |
!Block methodsFor:'process creation'! |
|
1541 |
||
1542 |
fork |
|
1543 |
"create a new process executing the receiver at the current priority." |
|
1544 |
||
1545 |
^ self newProcess resume |
|
1546 |
! |
|
1547 |
||
1548 |
forkAt:priority |
|
1549 |
"create a new process executing the receiver at a different priority." |
|
1550 |
||
1551 |
^ (self newProcess priority:priority) resume |
|
1552 |
! |
|
1553 |
||
1554 |
forkWith:argArray |
|
1555 |
"create a new process executing the receiver, |
|
1556 |
passing elements in argArray as arguments to the receiver block." |
|
1557 |
||
1558 |
^ [self valueWithArguments:argArray] fork. |
|
1559 |
! |
|
1560 |
||
1561 |
newProcess |
|
1562 |
"create a new (unscheduled) process executing the receiver" |
|
1563 |
||
1564 |
^ Process for:self priority:(Processor activePriority) |
|
1565 |
! |
|
1566 |
||
1567 |
newProcessWithArguments:argArray |
|
1568 |
"create a new (unscheduled) process executing the receiver, |
|
1569 |
passing the elements in argArray as arguments to the receiver block." |
|
1570 |
||
1571 |
^ [self valueWithArguments:argArray] newProcess |
|
1572 |
! |
|
1573 |
||
1574 |
promise |
|
1575 |
"create a promise on the receiver. The promise will evaluate the |
|
1576 |
receiver and promise to return the value with the #value message. |
|
1577 |
The evaluation will be performed as a separate process. |
|
1578 |
Asking the promise for its value will either block the asking process |
|
1579 |
(if the evaluation has not yet been finished) or return the value |
|
1580 |
immediately." |
|
1581 |
||
1582 |
^ Promise value:self |
|
1583 |
||
1584 |
" |
|
1585 |
|p| |
|
1586 |
||
1587 |
p := [1000 factorial] promise. |
|
1588 |
'do something else ...'. |
|
1589 |
p value |
|
1590 |
" |
|
1591 |
! |
|
1592 |
||
1593 |
promiseAt:prio |
|
1594 |
"create a promise on the receiver. The promise will evaluate the |
|
1595 |
receiver and promise to return the value with the #value message. |
|
1596 |
The evaluation will be performed as a separate process running at prio. |
|
1597 |
Asking the promise for its value will either block the asking process |
|
1598 |
(if the evaluation has not yet been finished) or return the value |
|
1599 |
immediately." |
|
1600 |
||
1601 |
^ Promise value:self priority:prio |
|
1602 |
! ! |
|
1603 |
||
1604 |
!Block methodsFor:'testing'! |
|
1605 |
||
1606 |
isBlock |
|
1607 |
"return true, if this is a block - yes I am" |
|
1608 |
||
1609 |
^ true |
|
2237
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1610 |
! |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1611 |
|
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1612 |
isVarArgBlock |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1613 |
"return true, if this block accepts a variable number of arguments" |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1614 |
|
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1615 |
^ false |
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1616 |
|
d54ee88b8106
VarArgBlock as a private subclass
Claus Gittinger <cg@exept.de>
parents:
2201
diff
changeset
|
1617 |
"Created: 23.1.1997 / 04:59:51 / cg" |
623 | 1618 |
! ! |
1619 |
||
1620 |
!Block methodsFor:'unwinding'! |
|
1621 |
||
4479
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1622 |
unwindHandlerInContext:aContext |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1623 |
"given a context which has been marked for unwind, |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1624 |
retrieve the handler block. |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1625 |
This avoids hardwiring access to the first argument in |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1626 |
#unwind methods (and theoretically allows for other unwinding |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1627 |
methods to be added)" |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1628 |
|
4896 | 1629 |
aContext selector == #'value:onUnwindDo:' ifTrue:[ |
1630 |
^ aContext argAt:2 |
|
1631 |
]. |
|
1632 |
||
4479
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1633 |
"/ for now, only #valueNowOrOnUnwindDo: |
4896 | 1634 |
"/ or #valueOnUnwindDo: |
5666
de56e39714da
inlined unwind setup into #ensure:
Claus Gittinger <cg@exept.de>
parents:
5349
diff
changeset
|
1635 |
"/ or #ensure: |
4479
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1636 |
|
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1637 |
^ aContext argAt:1 |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1638 |
! |
6915eb8eeeff
added query for unwindHandler (like contexts ask for handler)
Claus Gittinger <cg@exept.de>
parents:
4476
diff
changeset
|
1639 |
|
4896 | 1640 |
value:arg onUnwindDo:aBlock |
1641 |
"evaluate the receiver, passing it one argument |
|
1642 |
- when some method sent within unwinds (i.e. does |
|
1643 |
a long return), evaluate the argument, aBlock. |
|
1644 |
This is used to make certain that cleanup actions (for example closing files etc.) are |
|
1645 |
executed regardless of error actions" |
|
1646 |
||
1647 |
<exception: #unwind> |
|
1648 |
||
1649 |
|v| |
|
1650 |
||
1651 |
"/ thisContext markForUnwind. -- same as above pragma |
|
1652 |
v := self value:arg. "the real logic is in Context>>unwind" |
|
1653 |
thisContext unmarkForUnwind. |
|
1654 |
^ v |
|
1655 |
||
1656 |
" |
|
1657 |
|s| |
|
1658 |
||
1659 |
s := 'Makefile' asFilename readStream. |
|
1660 |
[:arg | |
|
1661 |
^ self |
|
1662 |
] value:12345 onUnwindDo:[ |
|
1663 |
Transcript showCR:'closing the stream - even though a return occurred'. |
|
1664 |
s close |
|
1665 |
] |
|
1666 |
" |
|
1667 |
" |
|
1668 |
[ |
|
1669 |
|s| |
|
1670 |
||
1671 |
s := 'Makefile' asFilename readStream. |
|
1672 |
[:arg | |
|
1673 |
Processor activeProcess terminate |
|
1674 |
] value:12345 onUnwindDo:[ |
|
1675 |
Transcript showCR:'closing the stream - even though process was terminated'. |
|
1676 |
s close |
|
1677 |
] |
|
1678 |
] fork |
|
1679 |
" |
|
1680 |
||
1681 |
! |
|
1682 |
||
623 | 1683 |
valueNowOrOnUnwindDo:aBlock |
1684 |
"evaluate the receiver - after that, or when some method sent within unwinds (i.e. does |
|
1685 |
a long return), evaluate the argument, aBlock. |
|
1686 |
This is used to make certain that cleanup actions (for example closing files etc.) are |
|
1687 |
executed regardless of error actions" |
|
1688 |
||
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1689 |
<exception: #unwind> |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1690 |
|
623 | 1691 |
|v| |
1692 |
||
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1693 |
"/ thisContext markForUnwind. -- same as above pragma |
623 | 1694 |
v := self value. "the real logic is in Context>>unwind" |
1187
619ff79bc665
valueNowOrOnUnwindDo: don't execute unwind block when block is currently executed 'now'.
Stefan Vogel <sv@exept.de>
parents:
1181
diff
changeset
|
1695 |
thisContext unmarkForUnwind. |
623 | 1696 |
aBlock value. |
1697 |
^ v |
|
1698 |
||
1699 |
" |
|
1700 |
in the following example, f will be closed even if the block |
|
1701 |
returns with 'oops'. There are many more applications of this kind |
|
1702 |
found in the system. |
|
1703 |
" |
|
1704 |
" |
|
1705 |
|f| |
|
1706 |
||
1707 |
f := 'Makefile' asFilename readStream. |
|
1708 |
[ |
|
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1709 |
l := f nextLine. |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1710 |
l isNil ifTrue:[^ 'oops'] |
623 | 1711 |
] valueNowOrOnUnwindDo:[ |
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1712 |
f close |
623 | 1713 |
] |
1714 |
" |
|
1187
619ff79bc665
valueNowOrOnUnwindDo: don't execute unwind block when block is currently executed 'now'.
Stefan Vogel <sv@exept.de>
parents:
1181
diff
changeset
|
1715 |
|
619ff79bc665
valueNowOrOnUnwindDo: don't execute unwind block when block is currently executed 'now'.
Stefan Vogel <sv@exept.de>
parents:
1181
diff
changeset
|
1716 |
"Modified: 16.4.1996 / 11:05:26 / stefan" |
623 | 1717 |
! |
1718 |
||
1719 |
valueOnUnwindDo:aBlock |
|
1720 |
"evaluate the receiver - when some method sent within unwinds (i.e. does |
|
1721 |
a long return), evaluate the argument, aBlock. |
|
1722 |
This is used to make certain that cleanup actions (for example closing files etc.) are |
|
1723 |
executed regardless of error actions" |
|
1724 |
||
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1725 |
<exception: #unwind> |
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1726 |
|
2286 | 1727 |
|v| |
1728 |
||
4491
5041cae5651c
use new pragma to flag exception frames.
Claus Gittinger <cg@exept.de>
parents:
4479
diff
changeset
|
1729 |
"/ thisContext markForUnwind. -- same as above pragma |
2286 | 1730 |
v := self value. "the real logic is in Context>>unwind" |
1731 |
thisContext unmarkForUnwind. |
|
1732 |
^ v |
|
1733 |
||
4896 | 1734 |
" |
1735 |
|s| |
|
1736 |
||
1737 |
s := 'Makefile' asFilename readStream. |
|
1738 |
[ |
|
1739 |
^ self |
|
1740 |
] valueOnUnwindDo:[ |
|
1741 |
Transcript showCR:'closing the stream - even though a return occurred'. |
|
1742 |
s close |
|
1743 |
] |
|
1744 |
" |
|
1745 |
" |
|
1746 |
[ |
|
1747 |
|s| |
|
1748 |
||
1749 |
s := 'Makefile' asFilename readStream. |
|
1750 |
[ |
|
1751 |
Processor activeProcess terminate |
|
1752 |
] valueOnUnwindDo:[ |
|
1753 |
Transcript showCR:'closing the stream - even though process was terminated'. |
|
1754 |
s close |
|
1755 |
] |
|
1756 |
] fork |
|
1757 |
" |
|
1758 |
||
623 | 1759 |
! ! |
1760 |
||
1773
442d1b73ecb9
no longer allow Blocks with a dynamic-bit to be created
Claus Gittinger <cg@exept.de>
parents:
1672
diff
changeset
|
1761 |
!Block class methodsFor:'documentation'! |
1181
6637fee79d7b
only Block & CheapBlock are fixed - subclasses may look different
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
1762 |
|
6637fee79d7b
only Block & CheapBlock are fixed - subclasses may look different
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
1763 |
version |
5744 | 1764 |
^ '$Header: /cvs/stx/stx/libbasic/Block.st,v 1.98 2000-12-13 13:15:00 cg Exp $' |
1181
6637fee79d7b
only Block & CheapBlock are fixed - subclasses may look different
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
1765 |
! ! |
623 | 1766 |
Block initialize! |