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annotate tests/mini/union6.d @ 1499:df11cdec45a2
Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324.
The idea is to separate the notion of const from 'this variable can always be
replaced with its initializer' in the frontend. To do that, I introduced
Declaration::isSameAsInitializer, which is overridden in VarDeclaration to
return false for constants that have a struct literal initializer.
So
{{{
const S s = S(5);
void foo() { auto ps = &s; }
// is no longer replaced by
void foo() { auto ps = &(S(5)); }
}}}
To make taking the address of a struct constant with a struct-initializer
outside of function scope possible, I made sure that AddrExp::optimize doesn't
try to run the argument's optimization with WANTinterpret - that'd again
replace the constant with a struct literal temporary.
author | Christian Kamm <kamm incasoftware de> |
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date | Sun, 14 Jun 2009 19:49:58 +0200 |
parents | 44f08170f4ef |
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78
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
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changeset
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1 module union6; |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
diff
changeset
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2 |
443
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
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3 struct S |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
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4 { |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
5 byte a; |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
6 byte b; |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
7 } |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
8 union U |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
9 { |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
10 byte a; |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
11 byte b; |
44f08170f4ef
Removed tango from the repository and instead added a runtime dir with the files needed to patch and build tango from svn.
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
341
diff
changeset
|
12 S c; |
78
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
diff
changeset
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13 } |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
diff
changeset
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14 |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
diff
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15 void main() |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
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16 { |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
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17 U u; |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
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18 auto a = u.c.b; |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
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19 //auto c = u.s.l; |
2332006e1fa4
[svn r82] Fixed: Fall-through switch cases were broken.
lindquist
parents:
diff
changeset
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20 } |