Bruce/tomo
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Activity

Update pointer docs on optionals

Browse Source
This commit is contained in:
Bruce Hill 2024-09-13 20:25:09 -04:00
parent c455e7b67d
commit 4cce1013a2
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
docs/pointers.md
View File

@ -101,12 +101,13 @@ optional := &foo?
```
The compiler will not allow you to dereference an optionally null pointer
without explicitly checking for null. To do so, use pattern matching like
this:
without explicitly checking for null. To do so, use a conditional check like
this, and everywhere inside the truthy block will allow you to use the pointer
as a non-null pointer:
```
when optional is @ptr:
ok := ptr[]
if optional:
ok := optional[]
else:
say("Oh, it was null")
```