On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
I know there is other threads about null safety and the
"possible" ways to support this in D and so on.
[...]
If it's not a bother, I'd like to know how you usually approach
it
[...]
Thanks!!!
I have a opDispatch solution here
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
This is only an open question to know what code patterns you
usually use to solve this situation in D:
if(person.father.father.name == "Peter") doSomething();
if(person.father.age > 80 ) doSomething();
knowing that *person*, or
On Friday, 15 January 2021 at 14:25:09 UTC, Steven Schveighoffer
wrote:
On 1/15/21 9:19 AM, Steven Schveighoffer wrote:
Something similar to BlackHole or WhiteHole. Essentially
there's a default action for null for all
types/fields/methods, and everything else is passed through.
And now
On Friday, 15 January 2021 at 14:19:35 UTC, Steven Schveighoffer
wrote:
On 1/14/21 7:27 PM, ddcovery wrote:
On Thursday, 14 January 2021 at 20:23:08 UTC, Steven
Schveighoffer wrote:
You could kinda automate it like:
struct NullCheck(T)
{
private T* _val;
auto opDispatch(string mem)()
On Friday, 15 January 2021 at 14:25:09 UTC, Steven Schveighoffer
wrote:
On 1/15/21 9:19 AM, Steven Schveighoffer wrote:
Something similar to BlackHole or WhiteHole. Essentially
there's a default action for null for all
types/fields/methods, and everything else is passed through.
And now
On 1/15/21 9:19 AM, Steven Schveighoffer wrote:
Something similar to BlackHole or WhiteHole. Essentially there's a
default action for null for all types/fields/methods, and everything
else is passed through.
And now reading the other thread about this above, it looks like this
type is
On 1/14/21 7:27 PM, ddcovery wrote:
On Thursday, 14 January 2021 at 20:23:08 UTC, Steven Schveighoffer wrote:
You could kinda automate it like:
struct NullCheck(T)
{
private T* _val;
auto opDispatch(string mem)() if (__traits(hasMember, T, mem)) {
alias Ret = typeof(() { return
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
I know there is other threads about null safety and the
"possible" ways to support this in D and so on.
This is only an open question to know what code patterns you
usually use to solve this situation in D
I'm writing a
On Thursday, 14 January 2021 at 20:35:49 UTC, Dennis wrote:
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
If it's not a bother, I'd like to know how you usually
approach it
Usually I don't deal with null because my functions get
primitive types, slices, or structs. `ref`
On Thursday, 14 January 2021 at 20:23:08 UTC, Steven
Schveighoffer wrote:
You could kinda automate it like:
struct NullCheck(T)
{
private T* _val;
auto opDispatch(string mem)() if (__traits(hasMember, T,
mem)) {
alias Ret = typeof(() { return __traits(getMember,
*_val, mem);
On Thursday, 14 January 2021 at 19:24:54 UTC, Adam D. Ruppe wrote:
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
This is only an open question to know what code patterns you
usually use to solve this situation in D:
I'm almost never in this situation except for reading things
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
If it's not a bother, I'd like to know how you usually approach
it
Usually I don't deal with null because my functions get primitive
types, slices, or structs. `ref` parameters can be used to
replace pointers that may not be null.
On 1/14/21 1:24 PM, ddcovery wrote:
I know there is other threads about null safety and the "possible" ways
to support this in D and so on.
This is only an open question to know what code patterns you usually use
to solve this situation in D:
if(person.father.father.name == "Peter")
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
I know there is other threads about null safety and the
"possible" ways to support this in D and so on.
This is only an open question to know what code patterns you
usually use to solve this situation in D:
On Thursday, 14 January 2021 at 18:24:44 UTC, ddcovery wrote:
This is only an open question to know what code patterns you
usually use to solve this situation in D:
I'm almost never in this situation except for reading things like
xml or json data that may be missing.
So I just special
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