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Fix for issue# 8398.

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This commit is contained in:
jmdavis 2012-07-22 00:40:25 -07:00
parent 87a143e4a8
commit ed22f41ec2
1 changed files with 15 additions and 2 deletions
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17
std/exception.d
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@ -488,7 +488,9 @@ T errnoEnforce(T, string file = __FILE__, size_t line = __LINE__)
/++
If $(D !!value) is $(D true), $(D value) is returned. Otherwise,
$(D new E(msg, file, line)) is thrown.
$(D new E(msg, file, line)) is thrown. Or if $(D E) doesn't take a message
and can be constructed with $(D new E(file, line)), then
$(D new E(file, line)) will be thrown.
Example:
--------------------
@ -507,6 +509,16 @@ template enforceEx(E)
}
}
template enforceEx(E)
if (is(typeof(new E(__FILE__, __LINE__))) && !is(typeof(new E("", __FILE__, __LINE__))))
{
T enforceEx(T)(T value, string file = __FILE__, size_t line = __LINE__) @safe pure
{
if (!value) throw new E(file, line);
return value;
}
}
/++
$(RED Deprecated. It will be removed in October 2012. Please use the version
of $(D enforceEx) which takes an exception that constructs with
@ -516,7 +528,7 @@ template enforceEx(E)
$(D new E(msg)) is thrown.
+/
deprecated template enforceEx(E)
if (is(typeof(new E(""))) && !is(typeof(new E("", __FILE__, __LINE__))))
if (is(typeof(new E(""))) && !is(typeof(new E("", __FILE__, __LINE__))) && !is(typeof(new E(__FILE__, __LINE__))))
{
T enforceEx(T)(T value, lazy string msg = "") @safe pure
{
@ -529,6 +541,7 @@ unittest
{
assertNotThrown(enforceEx!Exception(true));
assertNotThrown(enforceEx!Exception(true, "blah"));
assertNotThrown(enforceEx!OutOfMemoryError(true));
{
auto e = collectException(enforceEx!Exception(false));