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annotate tests/mini/bug47.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 | 1bb99290e03a |
children |
rev | line source |
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82
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
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1 module bug47; |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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2 |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
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3 bool func(bool a, bool b) |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
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4 { |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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5 if (a) b = false; |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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6 return b; |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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7 } |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
diff
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8 |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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9 void main() |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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10 { |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
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11 assert(func(0,0) == 0); |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
diff
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12 assert(func(0,1) == 1); |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
diff
changeset
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13 assert(func(1,0) == 0); |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
diff
changeset
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14 assert(func(1,1) == 0); |
d8dd47ef3973
[svn r86] Changed the way arguments are given storage. It is now detected if they will need it during semantic passes.
lindquist
parents:
diff
changeset
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15 } |