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patch 7.4.1727

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Problem:    Cannot detect a crash in tests when caused by garbagecollect().
Solution:   Add garbagecollect_for_testing().  Do not free a job if is still
            useful.
This commit is contained in:
Bram Moolenaar
2016-04-14 12:46:51 +02:00
parent 700eefe5a4
commit ebf7dfa6f1
10 changed files with 112 additions and 34 deletions
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32
runtime/doc/eval.txt
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@@ -1,4 +1,4 @@
*eval.txt* For Vim version 7.4. Last change: 2016 Apr 12
*eval.txt* For Vim version 7.4. Last change: 2016 Apr 14
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -61,9 +61,9 @@ Funcref A reference to a function |Funcref|.
Special |v:false|, |v:true|, |v:none| and |v:null|. *Special*
Job Used for a job, see |job_start()|. *Job*
Job Used for a job, see |job_start()|. *Job* *Jobs*
Channel Used for a channel, see |ch_open()|. *Channel*
Channel Used for a channel, see |ch_open()|. *Channel* *Channels*
The Number and String types are converted automatically, depending on how they
are used.
@@ -1723,6 +1723,9 @@ v:termresponse The escape sequence returned by the terminal for the |t_RV|
always 95 or bigger). Pc is always zero.
{only when compiled with |+termresponse| feature}
*v:testing* *testing-variable*
v:testing Must be set before using `garbagecollect_for_testing()`.
*v:this_session* *this_session-variable*
v:this_session Full filename of the last loaded or saved session file. See
|:mksession|. It is allowed to set this variable. When no
@@ -1905,9 +1908,10 @@ foldlevel( {lnum}) Number fold level at {lnum}
foldtext() String line displayed for closed fold
foldtextresult( {lnum}) String text for closed fold at {lnum}
foreground() Number bring the Vim window to the foreground
function({name} [, {arglist}] [, {dict}])
function( {name} [, {arglist}] [, {dict}])
Funcref reference to function {name}
garbagecollect( [{atexit}]) none free memory, breaking cyclic references
garbagecollect_for_testing() none free memory right now
get( {list}, {idx} [, {def}]) any get item {idx} from {list} or {def}
get( {dict}, {key} [, {def}]) any get item {key} from {dict} or {def}
getbufline( {expr}, {lnum} [, {end}])
@@ -3674,19 +3678,27 @@ function({name} [, {arglist}] [, {dict}])
garbagecollect([{atexit}]) *garbagecollect()*
Cleanup unused |Lists| and |Dictionaries| that have circular
references. There is hardly ever a need to invoke this
function, as it is automatically done when Vim runs out of
memory or is waiting for the user to press a key after
'updatetime'. Items without circular references are always
freed when they become unused.
Cleanup unused |Lists|, |Dictionaries|, |Channels| and |Jobs|
that have circular references.
There is hardly ever a need to invoke this function, as it is
automatically done when Vim runs out of memory or is waiting
for the user to press a key after 'updatetime'. Items without
circular references are always freed when they become unused.
This is useful if you have deleted a very big |List| and/or
|Dictionary| with circular references in a script that runs
for a long time.
When the optional {atexit} argument is one, garbage
collection will also be done when exiting Vim, if it wasn't
done before. This is useful when checking for memory leaks.
garbagecollect_for_testing() *garbagecollect_for_testing()*
Like garbagecollect(), but executed right away. This must
only be called directly to avoid any structure to exist
internally, and |v:testing| must have been set before calling
any function.
get({list}, {idx} [, {default}]) *get()*
Get item {idx} from |List| {list}. When this item is not
available return {default}. Return zero when {default} is