• Steven Schveighoffer (9/9) Nov 21 2019 I thought I could do typeid(Class).name to get the class name that will
• Steven Schveighoffer (4/13) Nov 21 2019 To clarify, I need the compile time string that will match
• Adam D. Ruppe (5/7) Nov 21 2019 You have to make sure that the derived type is passed to your
• Alexandru Ermicioi (9/16) Nov 22 2019 Please note that fullyQualifiedName can return slightly different
• Jacob Carlborg (8/16) Nov 22 2019 I solved that by storing the class info as the key in an
• Steven Schveighoffer (4/23) Nov 22 2019 Thanks for all the replies, guys. Annoying that the compiler has

Steven Schveighoffer <schveiguy gmail.com> writes:

I thought I could do typeid(Class).name to get the class name that will 
be returned at runtime if you did typeid(instance).name. But it's not 
accessible at compile-time.

What compile-time string should I use for instance in a constructed 
switch statement? I'm trying to implement serialization and 
deserialization of classes, but I really would like to avoid using a 
class enum if possible, since the type id is already there and generated 
by the compiler.

-Steve

Steven Schveighoffer <schveiguy gmail.com> writes:

On 11/21/19 3:44 PM, Steven Schveighoffer wrote:
 I thought I could do typeid(Class).name to get the class name that will 
 be returned at runtime if you did typeid(instance).name. But it's not 
 accessible at compile-time.
 
 What compile-time string should I use for instance in a constructed 
 switch statement? I'm trying to implement serialization and 
 deserialization of classes, but I really would like to avoid using a 
 class enum if possible, since the type id is already there and generated 
 by the compiler.

To clarify, I need the compile time string that will match 
typeid(instance).name, so I can match the derived type.

-Steve

Adam D. Ruppe <destructionator gmail.com> writes:

On Thursday, 21 November 2019 at 20:45:16 UTC, Steven 
Schveighoffer wrote:
 To clarify, I need the compile time string that will match 
 typeid(instance).name, so I can match the derived type.

You have to make sure that the derived type is passed to your 
register function, but then std.traits.fullyQualifiedName!T ought 
to give it to you.

Alexandru Ermicioi <alexandru.ermicioi gmail.com> writes:

On Thursday, 21 November 2019 at 20:48:03 UTC, Adam D. Ruppe 
wrote:
 On Thursday, 21 November 2019 at 20:45:16 UTC, Steven 
 Schveighoffer wrote:
 To clarify, I need the compile time string that will match 
 typeid(instance).name, so I can match the derived type.

 You have to make sure that the derived type is passed to your 
 register function, but then std.traits.fullyQualifiedName!T 
 ought to give it to you.

Please note that fullyQualifiedName can return slightly different 
string than ClassInfo.name for templated types (typeinfo returns 
names that are fully expanded for eponymous templates while FQN 
function does not) and hence won't recommend mixing both of them 
toghether.

Best regards,
Alexandru.

Jacob Carlborg <doob me.com> writes:

On Thursday, 21 November 2019 at 20:44:19 UTC, Steven 
Schveighoffer wrote:
 I thought I could do typeid(Class).name to get the class name 
 that will be returned at runtime if you did 
 typeid(instance).name. But it's not accessible at compile-time.

 What compile-time string should I use for instance in a 
 constructed switch statement? I'm trying to implement 
 serialization and deserialization of classes, but I really 
 would like to avoid using a class enum if possible, since the 
 type id is already there and generated by the compiler.

I solved that by storing the class info as the key in an 
associative array [1]. But it looks like Adam's solution will 
work as well.

If you ideas, you can always have a look at Orange.

[1] 
https://github.com/jacob-carlborg/orange/blob/90f1dbb0097ba4a319805bfb7d109f7038418ac6/orange/serialization/Serializer.d#L241-L262

Steven Schveighoffer <schveiguy gmail.com> writes:

On 11/22/19 4:04 AM, Jacob Carlborg wrote:
 On Thursday, 21 November 2019 at 20:44:19 UTC, Steven Schveighoffer wrote:
 I thought I could do typeid(Class).name to get the class name that 
 will be returned at runtime if you did typeid(instance).name. But it's 
 not accessible at compile-time.

 What compile-time string should I use for instance in a constructed 
 switch statement? I'm trying to implement serialization and 
 deserialization of classes, but I really would like to avoid using a 
 class enum if possible, since the type id is already there and 
 generated by the compiler.

 
 I solved that by storing the class info as the key in an associative 
 array [1]. But it looks like Adam's solution will work as well.
 
 If you ideas, you can always have a look at Orange.
 
 [1] 
 https://github.com/jacob-carlborg/orange/blob/90f1dbb0097ba4a319805bfb7d109f7038418ac6/orange/serialization/Se
ializer.d#L241-L262 
 

Thanks for all the replies, guys. Annoying that the compiler has 
generated these names but doesn't make them accessible at compile-time.

-Steve