annotate tests/mini/assign1.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 261b05cf4d1c
children
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261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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1 module mini.assign1;
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
2
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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3 extern(C) int printf(char*, ...);
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
4
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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5 struct X
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
6 {
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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7 int a;
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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8 alias a b;
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
9 }
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
10 void main()
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
diff changeset
11 {
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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12 X e = void;
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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13 e.a = e.b = 5;
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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14 printf("%d - %d\n", e.a, e.b);
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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15 assert(e.a == 5);
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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16 assert(e.a == e.b);
261b05cf4d1c Fixed problem in AssignExp where the result value might be uninitialized. see mini/assign1.d
Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
parents:
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17 }