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Added support for guile's native pointer type

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This commit is contained in:
Brian Caine 2016-07-09 21:39:28 -04:00 • committed by Olly Betts
commit 391bb79cba
5 changed files with 49 additions and 18 deletions
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3
CHANGES.current
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@ -5,6 +5,9 @@ See the RELEASENOTES file for a summary of changes in each release.
Version 3.0.11 (in progress)
============================
2016-09-18 bcaine
[Guile] Patch #744 Added support for Guile's native pointer functionality
2016-12-01: wsfulton
[Python] Issue https://github.com/swig/swig/issues/769
Add optional moduleimport attribute to %module so that the

13
Doc/Manual/Contents.html
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@ -908,13 +908,14 @@
<li><a href="Guile.html#Guile_nn14">Smobs</a>
<li><a href="Guile.html#Guile_nn15">Garbage Collection</a>
</ul>
<li><a href="Guile.html#Guile_nn16">Exception Handling</a>
<li><a href="Guile.html#Guile_nn17">Procedure documentation</a>
<li><a href="Guile.html#Guile_nn18">Procedures with setters</a>
<li><a href="Guile.html#Guile_nn19">GOOPS Proxy Classes</a>
<li><a href="Guile.html#Guile_nn16">Native Guile pointers</a>
<li><a href="Guile.html#Guile_nn17">Exception Handling</a>
<li><a href="Guile.html#Guile_nn18">Procedure documentation</a>
<li><a href="Guile.html#Guile_nn19">Procedures with setters</a>
<li><a href="Guile.html#Guile_nn20">GOOPS Proxy Classes</a>
<ul>
<li><a href="Guile.html#Guile_nn20">Naming Issues</a>
<li><a href="Guile.html#Guile_nn21">Linking</a>
<li><a href="Guile.html#Guile_nn21">Naming Issues</a>
<li><a href="Guile.html#Guile_nn22">Linking</a>
</ul>
</ul>
</div>

32
Doc/Manual/Guile.html
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@ -30,13 +30,14 @@
<li><a href="#Guile_nn14">Smobs</a>
<li><a href="#Guile_nn15">Garbage Collection</a>
</ul>
<li><a href="#Guile_nn16">Exception Handling</a>
<li><a href="#Guile_nn17">Procedure documentation</a>
<li><a href="#Guile_nn18">Procedures with setters</a>
<li><a href="#Guile_nn19">GOOPS Proxy Classes</a>
<li><a href="#Guile_nn16">Native Guile pointers</a>
<li><a href="#Guile_nn17">Exception Handling</a>
<li><a href="#Guile_nn18">Procedure documentation</a>
<li><a href="#Guile_nn19">Procedures with setters</a>
<li><a href="#Guile_nn20">GOOPS Proxy Classes</a>
<ul>
<li><a href="#Guile_nn20">Naming Issues</a>
<li><a href="#Guile_nn21">Linking</a>
<li><a href="#Guile_nn21">Naming Issues</a>
<li><a href="#Guile_nn22">Linking</a>
</ul>
</ul>
</div>
@ -453,7 +454,14 @@ is exactly like described in <a href="Customization.html#Customization_ownership
Object ownership and %newobject</a> in the SWIG manual. All typemaps use an $owner var, and
the guile module replaces $owner with 0 or 1 depending on feature:new.</p>
<H2><a name="Guile_nn16">24.8 Exception Handling</a></H2>
<H2><a name="Guile_nn16">24.8 Native Guile pointers</a></H2>
<p>
In addition to SWIG smob pointers, <a href="https://www.gnu.org/software/guile/manual/html_node/Foreign-Pointers.html">Guile's native pointer type</a> are accepted as arguments to wrapped SWIG functions. This can be useful for passing <a href="https://www.gnu.org/software/guile/manual/html_node/Void-Pointers-and-Byte-Access.html#">pointers to bytevector data</a> to wrapped functions.
</p>
<H2><a name="Guile_nn17">24.9 Exception Handling</a></H2>
<p>
@ -479,7 +487,7 @@ mapping:
The default when not specified here is to use "swig-error".
See Lib/exception.i for details.
<H2><a name="Guile_nn17">24.9 Procedure documentation</a></H2>
<H2><a name="Guile_nn18">24.10 Procedure documentation</a></H2>
<p>If invoked with the command-line option <code>-procdoc
@ -514,7 +522,7 @@ like this:
typemap argument <code>doc</code>. See <code>Lib/guile/typemaps.i</code> for
details.
<H2><a name="Guile_nn18">24.10 Procedures with setters</a></H2>
<H2><a name="Guile_nn19">24.11 Procedures with setters</a></H2>
<p>For global variables, SWIG creates a single wrapper procedure
@ -542,7 +550,7 @@ struct members, the procedures <code>(<var>struct</var>-<var>member</var>-get
pointer)</code> and <code>(<var>struct-member</var>-set pointer
value)</code> are <em>not</em> generated.
<H2><a name="Guile_nn19">24.11 GOOPS Proxy Classes</a></H2>
<H2><a name="Guile_nn20">24.12 GOOPS Proxy Classes</a></H2>
<p>SWIG can also generate classes and generic functions for use with
@ -688,7 +696,7 @@ Notice that &lt;Foo&gt; is used before it is defined. The fix is to just put th
<code>%import "foo.h"</code> before the <code>%inline</code> block.
</p>
<H3><a name="Guile_nn20">24.11.1 Naming Issues</a></H3>
<H3><a name="Guile_nn21">24.12.1 Naming Issues</a></H3>
<p>As you can see in the example above, there are potential naming conflicts. The default exported
@ -725,7 +733,7 @@ guile-modules. For example,</p>
(use-modules ((Test) #:renamer (symbol-prefix-proc 'goops:)))
</pre></div>
<H3><a name="Guile_nn21">24.11.2 Linking</a></H3>
<H3><a name="Guile_nn22">24.12.2 Linking</a></H3>
<p>The guile-modules generated above all need to be linked together. GOOPS support requires

16
Examples/test-suite/guile/argout_runme.scm Normal file
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@ -0,0 +1,16 @@
;; tests support for native guile pointers
;; https://www.gnu.org/software/guile/manual/html_node/Void-Pointers-and-Byte-Access.html
(dynamic-call "scm_init_argout_module" (dynamic-link "./libargout"))
(use-modules (srfi srfi-4) (system foreign))
(define initial-value 42)
(define some-s32-data (s32vector initial-value))
(if (not (= (incp (bytevector->pointer some-s32-data)) initial-value))
(error "Didn't read s32 data" initial-value some-s32-data))
(if (not (= (s32vector-ref some-s32-data 0) (+ initial-value 1)))
(error "Failed to increment s32 data" some-s32-data))
(exit 0)

3
Lib/guile/guile_scm_run.swg
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@ -176,6 +176,9 @@ SWIG_Guile_ConvertPtr(SCM s, void **result, swig_type_info *type, int flags)
if (SCM_NULLP(smob)) {
*result = NULL;
return SWIG_OK;
} else if (SCM_POINTER_P(s)) {
*result = SCM_POINTER_VALUE(s);
return SWIG_OK;
} else if (SCM_SMOB_PREDICATE(swig_tag, smob) || SCM_SMOB_PREDICATE(swig_collectable_tag, smob)) {
/* we do not accept smobs representing destroyed pointers */
from = (swig_type_info *) SCM_CELL_WORD_2(smob);