redefining module without errors
The following code does not generate any warnings or errors. It this
correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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When it comes to variables, the last definition in the scope applies. I
think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss <
discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or errors. It this
correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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At least I get a warning when I re-define a variable!
On 6/7/2024 8:57 PM, Father Horton via Discuss wrote:
When it comes to variables, the last definition in the scope applies.
I think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss
discuss@lists.openscad.org wrote:
The following code does not generate any warnings or errors. It
this correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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Jon, yes this is correct. This allows you to override modules (even
OpenSCAD primitives) with your own, enhanced versions. The BOSL2 library
does this a lot. It can be confusing at times, but it is very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss <
discuss@lists.openscad.org> wrote:
When it comes to variables, the last definition in the scope applies. I
think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss <
discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or errors. It this
correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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I claim this is a serious bug. I can't tell you how much time I spent
altering a module and seeing nothing change. I imagine it is way too
late to change, but it would be helpful if there were SOME utility that
allowed one to know that such an over-ride has occurred, ESPECIALLY
within a single text file. I cannot see any use for re-defining a
module within a file: that surely would deserve a warning.
Sigh.
On 6/7/2024 11:32 PM, Leonard Martin Struttmann via Discuss wrote:
Jon, yes this is correct. This allows you to override modules (even
OpenSCAD primitives) with your own, enhanced versions. The
BOSL2 library does this a lot. It can be confusing at times, but it is
very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss
discuss@lists.openscad.org wrote:
When it comes to variables, the last definition in the scope
applies. I think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss
<discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or errors.
It this correct behavior? Using version 2024.01.14 (git
158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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Well, trying to be constructive here, it might be implemented as a extended
warningmode, off by default. I'm thinking like "lint" in C, a nitpicking
mode.
Unfortunatly that means a syntax extensions or compiler hints (typically a
specially formatted comment fex /!/) that signals this redefenition is
intentional.
If the people who use their spare time to implement such extended warnings
feel this is worthwhile, they could also consider flagging unused variables
and suchlike.
M²
lør. 8. jun. 2024 12.43 skrev Jon Bondy via Discuss <
discuss@lists.openscad.org>:
I claim this is a serious bug. I can't tell you how much time I spent
altering a module and seeing nothing change. I imagine it is way too late
to change, but it would be helpful if there were SOME utility that allowed
one to know that such an over-ride has occurred, ESPECIALLY within a
single text file. I cannot see any use for re-defining a module within a
file: that surely would deserve a warning.
Sigh.
On 6/7/2024 11:32 PM, Leonard Martin Struttmann via Discuss wrote:
Jon, yes this is correct. This allows you to override modules (even
OpenSCAD primitives) with your own, enhanced versions. The BOSL2 library
does this a lot. It can be confusing at times, but it is very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss <
discuss@lists.openscad.org> wrote:
When it comes to variables, the last definition in the scope applies. I
think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss <
discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or errors. It this
correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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I, personally, would want this extended warning mode to be ON by default.
I, too, have spent many hours tracking down why strange things were
happening in my code only to discover that a library that I was using had a
module with the same name as I had.
However, this "feature" can be quite useful. BOSL2 overrides primitives
such as cube() and cylinder() that work exactly like the OpenSCAD
primitives, while allowing one to position and orient the created shape.
On Sat, Jun 8, 2024 at 6:06 AM Michael Möller via Discuss <
discuss@lists.openscad.org> wrote:
Well, trying to be constructive here, it might be implemented as a
extended warningmode, off by default. I'm thinking like "lint" in C, a
nitpicking mode.
Unfortunatly that means a syntax extensions or compiler hints (typically a
specially formatted comment fex /!/) that signals this redefenition is
intentional.
If the people who use their spare time to implement such extended warnings
feel this is worthwhile, they could also consider flagging unused variables
and suchlike.
M²
lør. 8. jun. 2024 12.43 skrev Jon Bondy via Discuss <
discuss@lists.openscad.org>:
I claim this is a serious bug. I can't tell you how much time I spent
altering a module and seeing nothing change. I imagine it is way too late
to change, but it would be helpful if there were SOME utility that allowed
one to know that such an over-ride has occurred, ESPECIALLY within a
single text file. I cannot see any use for re-defining a module within a
file: that surely would deserve a warning.
Sigh.
On 6/7/2024 11:32 PM, Leonard Martin Struttmann via Discuss wrote:
Jon, yes this is correct. This allows you to override modules (even
OpenSCAD primitives) with your own, enhanced versions. The BOSL2 library
does this a lot. It can be confusing at times, but it is very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss <
discuss@lists.openscad.org> wrote:
When it comes to variables, the last definition in the scope applies. I
think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss <
discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or errors. It this
correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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I agree that it is both useful (when used appropriately) and troublesome
(when used accidentally). The trick is trying to detect the latter
without destroying the former.
On 6/8/2024 7:34 AM, Leonard Martin Struttmann via Discuss wrote:
I, personally, would want this extended warning mode to be ON by
default. I, too, have spent many hours tracking down why strange
things were happening in my code only to discover that a library that
I was using had a module with the same name as I had.
However, this "feature" can be quite useful. BOSL2 overrides
primitives such as cube() and cylinder() that work exactly like the
OpenSCAD primitives, while allowing one to position and orient the
created shape.
On Sat, Jun 8, 2024 at 6:06 AM Michael Möller via Discuss
discuss@lists.openscad.org wrote:
Well, trying to be constructive here, it might be implemented as a
extended warningmode, off by default. I'm thinking like "lint" in
C, a nitpicking mode.
Unfortunatly that means a syntax extensions or compiler hints
(typically a specially formatted comment fex /*!*/) that signals
this redefenition is intentional.
If the people who use their spare time to implement such extended
warnings feel this is worthwhile, they could also consider
flagging unused variables and suchlike.
M²
lør. 8. jun. 2024 12.43 skrev Jon Bondy via Discuss
<discuss@lists.openscad.org>:
I claim this is a serious bug. I can't tell you how much time
I spent altering a module and seeing nothing change. I
imagine it is way too late to change, but it would be helpful
if there were SOME utility that allowed one to know that such
an over-ride has occurred, ESPECIALLY within a single text
file. I cannot see any use for re-defining a module within a
file: that surely would deserve a warning.
Sigh.
On 6/7/2024 11:32 PM, Leonard Martin Struttmann via Discuss wrote:
Jon, yes this is correct. This allows you to override
modules (even OpenSCAD primitives) with your own, enhanced
versions. The BOSL2 library does this a lot. It can be
confusing at times, but it is very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss
<discuss@lists.openscad.org> wrote:
When it comes to variables, the last definition in the
scope applies. I think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss
<discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or
errors. It this correct behavior? Using version
2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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It wouldn't be hard to devise a syntax for redefining modules to
distinguish from modules that are not being redefined. One could imagine
"module foo" vs "replace module foo" for example.
On Sat, Jun 8, 2024 at 7:44 AM Jon Bondy via Discuss <
discuss@lists.openscad.org> wrote:
I agree that it is both useful (when used appropriately) and troublesome
(when used accidentally). The trick is trying to detect the latter without
destroying the former.
On 6/8/2024 7:34 AM, Leonard Martin Struttmann via Discuss wrote:
I, personally, would want this extended warning mode to be ON by default.
I, too, have spent many hours tracking down why strange things were
happening in my code only to discover that a library that I was using had a
module with the same name as I had.
However, this "feature" can be quite useful. BOSL2 overrides primitives
such as cube() and cylinder() that work exactly like the OpenSCAD
primitives, while allowing one to position and orient the created shape.
On Sat, Jun 8, 2024 at 6:06 AM Michael Möller via Discuss <
discuss@lists.openscad.org> wrote:
Well, trying to be constructive here, it might be implemented as a
extended warningmode, off by default. I'm thinking like "lint" in C, a
nitpicking mode.
Unfortunatly that means a syntax extensions or compiler hints (typically
a specially formatted comment fex /!/) that signals this redefenition is
intentional.
If the people who use their spare time to implement such extended
warnings feel this is worthwhile, they could also consider flagging unused
variables and suchlike.
M²
lør. 8. jun. 2024 12.43 skrev Jon Bondy via Discuss <
discuss@lists.openscad.org>:
I claim this is a serious bug. I can't tell you how much time I spent
altering a module and seeing nothing change. I imagine it is way too late
to change, but it would be helpful if there were SOME utility that allowed
one to know that such an over-ride has occurred, ESPECIALLY within a
single text file. I cannot see any use for re-defining a module within a
file: that surely would deserve a warning.
Sigh.
On 6/7/2024 11:32 PM, Leonard Martin Struttmann via Discuss wrote:
Jon, yes this is correct. This allows you to override modules (even
OpenSCAD primitives) with your own, enhanced versions. The BOSL2 library
does this a lot. It can be confusing at times, but it is very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss <
discuss@lists.openscad.org> wrote:
When it comes to variables, the last definition in the scope applies. I
think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss <
discuss@lists.openscad.org> wrote:
The following code does not generate any warnings or errors. It this
correct behavior? Using version 2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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On Sat, 2024-06-08 at 06:34 -0500, Leonard Martin Struttmann via
Discuss wrote:
I, personally, would want this extended warning mode to be ON by
default. I, too, have spent many hours tracking down why strange
things were happening in my code only to discover that a library that
I was using had a module with the same name as I had.
However, this "feature" can be quite useful. BOSL2 overrides
primitives such as cube() and cylinder() that work exactly like the
OpenSCAD primitives, while allowing one to position and orient the
created shape.
Corect me if I'm wrong, but BOSL2 does not override cube() and
cylinder(). They provide cuboid() and cyl().
On Sat, Jun 8, 2024 at 6:06 AM Michael Möller via Discuss
discuss@lists.openscad.org wrote:
Well, trying to be constructive here, it might be implemented as a
extended warningmode, off by default. I'm thinking like "lint" in
C, a nitpicking mode.
Unfortunatly that means a syntax extensions or compiler hints
(typically a specially formatted comment fex /!/) that signals
this redefenition is intentional.
If the people who use their spare time to implement such extended
warnings feel this is worthwhile, they could also consider flagging
unused variables and suchlike.
M²
lør. 8. jun. 2024 12.43 skrev Jon Bondy via Discuss
discuss@lists.openscad.org:
I claim this is a serious bug. I can't tell you how much time I
spent altering a module and seeing nothing change. I imagine it
is way too late to change, but it would be helpful if there were
SOME utility that allowed one to know that such an over-ride has
occurred, ESPECIALLY within a single text file. I cannot see
any use for re-defining a module within a file: that surely would
deserve a warning.
Sigh.
On 6/7/2024 11:32 PM, Leonard Martin Struttmann via Discuss
wrote:
Jon, yes this is correct. This allows you to override modules
(even OpenSCAD primitives) with your own, enhanced versions.
The BOSL2 library does this a lot. It can be confusing at
times, but it is very powerful.
On Fri, Jun 7, 2024 at 7:58 PM Father Horton via Discuss
discuss@lists.openscad.org wrote:
When it comes to variables, the last definition in the scope
applies. I think the same thing applies here.
On Fri, Jun 7, 2024 at 6:43 PM Jon Bondy via Discuss
discuss@lists.openscad.org wrote:
The following code does not generate any warnings or
errors. It this correct behavior? Using version
2024.01.14 (git 158c5b94f)
Jon
module Pot()
cube(10);
module Pot()
cube(20);
Pot();
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