annotate tests/mini/classes3.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>
date Sun, 14 Jun 2009 19:49:58 +0200
parents 1bb99290e03a
children
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1
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1 class C
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2 {
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3 int c;
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4 long f(long l)
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5 {
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6 return l;
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7 }
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8 }
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9
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10 class D : C
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11 {
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12 int d;
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13 override long f(long l)
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14 {
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15 return l*2;
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16 }
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17 }
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18
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19 void main()
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20 {
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21 scope c = new C;
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22 assert(c.f(25L) == 25);
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23 scope d = new D;
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24 assert(d.f(25L) == 50);
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25 C cd = d;
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26 assert(cd.f(25L) == 50);
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27 assert(func(d,25L) == 50);
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28 }
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29
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30 long func(C c, long l)
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31 {
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32 return c.f(l);
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33 }