digitalmars.D.bugs - [Issue 1253] New: DMD 0.175 introduced bug: array initializers as expressions are not allowed?
- d-bugmail puremagic.com (29/29) Jun 01 2007 http://d.puremagic.com/issues/show_bug.cgi?id=1253
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- d-bugmail puremagic.com (12/12) May 11 2008 http://d.puremagic.com/issues/show_bug.cgi?id=1253
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http://d.puremagic.com/issues/show_bug.cgi?id=1253
Summary: DMD 0.175 introduced bug: array initializers as
expressions are not allowed?
Product: D
Version: 0.175
Platform: All
OS/Version: All
Status: NEW
Keywords: rejects-valid
Severity: major
Priority: P2
Component: DMD
AssignedTo: bugzilla digitalmars.com
ReportedBy: oskar.linde gmail.com
void main() {
struct T { int a; int b;}
const T[] arr = [{1,1},{2,2}];
T[] arr2 = arr.dup;
assert(arr2 == arr);
}
Gives:
test.d:3: Error: array initializers as expressions are not allowed
test.d:3: Error: array initializers as expressions are not allowed
Interestingly, commenting out the assert line makes the code compile.
changing const -> static also makes the code compile.
The bug is confirmed to exist on 0.175, 0.176, 0.178, 1.006, 1.007, 1.013 (gdc
0.23) and 1.014
On DMD 0.174 (and earlier), the code compiles ok.
--
Jun 01 2007
d-bugmail puremagic.com
http://d.puremagic.com/issues/show_bug.cgi?id=1253
smjg iname.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |smjg iname.com
Severity|major |regression
--
Jun 01 2007
http://d.puremagic.com/issues/show_bug.cgi?id=1253 ------- Comment #1 from thomas-dloop kuehne.cn 2007-08-25 16:42 ------- Added to DStress as http://dstress.kuehne.cn/run/s/struct_initialization_11_A.d http://dstress.kuehne.cn/run/s/struct_initialization_11_B.d http://dstress.kuehne.cn/run/s/struct_initialization_11_C.d --
Aug 25 2007
http://d.puremagic.com/issues/show_bug.cgi?id=1253
------- Comment #2 from terranium yandex.ru 2008-05-11 10:38 -------
exists in 2.012, doesn't depend on asserts
struct A
{
int a,b;
}
void f()
{
A[2] rg=[{1,2},{1,2}];
}
--
May 11 2008
http://d.puremagic.com/issues/show_bug.cgi?id=1253
------- Comment #3 from terranium yandex.ru 2008-05-11 10:51 -------
workaround :-/
struct A
{
int a,b;
}
void f()
{
A[2] rg=[A(1,2),A(3,4)];
}
--
May 11 2008
http://d.puremagic.com/issues/show_bug.cgi?id=1253 ------- Comment #4 from terranium yandex.ru 2008-09-30 04:47 ------- other initialization-related info bug 2096, bug 2170, bug 2356, bug 2375 --
Sep 30 2008
http://d.puremagic.com/issues/show_bug.cgi?id=1253
Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |clugdbug yahoo.com.au
Version|0.175 |2.022
Summary|DMD 0.175 introduced bug: |array initializers as
|array initializers as |expressions are not allowed
|expressions are not |in const arrays
|allowed? |
Severity|regression |normal
--- Comment #5 from Don <clugdbug yahoo.com.au> 2009-09-01 07:33:56 PDT ---
This works for me on D1.046. It was fixed somewhere between 1.020 and 1.041.
It also works on DMD2.031, if you change 'const' to 'enum' to preserve the
semantics.
Oddly, however, on DMD2.031 the code as-written still displays:
bug.d(173): Error: array initializers as expressions are not allowed
So this is now a D2-only bug, which is not a regression. It's never worked with
these semantics. Checked as far back as 2.022.
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Sep 01 2009
http://d.puremagic.com/issues/show_bug.cgi?id=1253
Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
--- Comment #6 from Don <clugdbug yahoo.com.au> 2009-09-01 08:24:13 PDT ---
And here's a patch.
Cause: The initializer is used in declaration.c, VarDeclaration::semantic().
We see the lines:
------
Expression *e = init->toExpression();
if (!e)
{
init = init->semantic(sc, type);
e = init->toExpression();
if (!e)
------
The initializer is supposed to return NULL if the initializer semantic hasn't
been run yet. But the array initializer doesn't -- it prints an error, and
returns an ErrorExp instead! It never has a chance.
PATCH: init.c, last lines of ArrayInitializer::toExpression() (around line
473).
Lno:
delete elements;
- error(loc, "array initializers as expressions are not allowed");
- return new ErrorExp();
+ return NULL;
}
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Sep 01 2009
http://d.puremagic.com/issues/show_bug.cgi?id=1253
Walter Bright <bugzilla digitalmars.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |bugzilla digitalmars.com
Resolution| |FIXED
--- Comment #7 from Walter Bright <bugzilla digitalmars.com> 2009-10-06
02:19:51 PDT ---
Fixed dmd 2.033
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Oct 06 2009