fixes#23513
Also, the old `runnableExample` is just a copy of `proc
parseInt(openArray[char], var int, int)` variant (in Line 1000).
---------
Co-authored-by: ringabout <43030857+ringabout@users.noreply.github.com>
fixes#23690
```nim
dest.`:state` = src.`:state`
var :tmp_553651276 = dest.e1.a
`=wasMoved`(dest.e1.a)
dest.e1.a.kind = src.e1.a.kind
case dest.e1.a.kind
of 0:
dest.e1.a.a = src.e1.a.a
of 1:
`=copy`(dest.e1.a.c, src.e1.a.c)
case :tmp_553651276.kind
of 0:
of 1:
`=destroy`(:tmp_553651276.c)
```
`dest.e1.a.kind = src.e1.a.kind` changes the discrimant but it fails to
clear the memory of `dest.e1.a`. Before using hooks for copying, we need
to clear the dest, e.g. `=wasMoved(dest.e1.a.c)`.
```nim
dest.`:state` = src.`:state`
var :tmp_553651276 = dest.e1.a
`=wasMoved`(dest.e1.a)
dest.e1.a.kind = src.e1.a.kind
case dest.e1.a.kind
of 0:
`=wasMoved`(dest.e1.a.a)
dest.e1.a.a = src.e1.a.a
`=wasMoved`(dest.e1.a.b)
of 1:
`=wasMoved`(dest.e1.a.c)
`=copy`(dest.e1.a.c, src.e1.a.c)
case :tmp_553651276.kind
of 0:
of 1:
`=destroy`(:tmp_553651276.c)
```
fixes#10440, fixes#13871, fixes#14665, fixes#19672, fixes#23677
The false positive in #23677 was caused by behavior in
`implicitlyDiscardable` where only the last node of `if`/`case`/`try`
etc expressions were considered, as in the final node of the final
branch (in this case `else`). To fix this we use the same iteration in
`implicitlyDiscardable` that we use in `endsInNoReturn`, with the
difference that for an `if`/`case`/`try` statement to be implicitly
discardable, all of its branches must be implicitly discardable.
`noreturn` calls are also considered implicitly discardable for this
reason, otherwise stuff like `if true: discardableCall() else: error()`
doesn't compile.
However `endsInNoReturn` also had bugs, one where `finally` was
considered in noreturn checking when it shouldn't, another where only
`nkIfStmt` was checked and not `nkIfExpr`, and the node given for the
error message was bad. So `endsInNoReturn` now skips over
`skipForDiscardable` which no longer contains
`nkIfStmt`/`nkCaseStmt`/`nkTryStmt`, stores the first encountered
returning node in a var parameter for the error message, and handles
`finally` and `nkIfExpr`.
Fixing #23677 already broke a line in `syncio` so some package code
might be affected.
Because of the bug in `tools/parse_unicodedata.nim`, CJK Ideographs were
not considered letters in `isAlpha()`, even though they have category
Lo. This is because they are specified as range in `UnicodeData.txt`,
not as separate characters:
```
4E00;<CJK Ideograph, First>;Lo;0;L;;;;;N;;;;;
9FEF;<CJK Ideograph, Last>;Lo;0;L;;;;;N;;;;;
```
The parser was not prepared to parse such ranges and thus omitted almost
all CJK Ideographs from consideration.
To fix this, we need to consider ranges from `UnicodeData.txt` in
`tools/parse_unicodedata.nim`.
... by moving the Google font includes near the top of the head. By
including them as early as possible, they are known, when the browser
starts rendering the body.
Test it by making the change manually in `doc/html/system.html` and then
press ctrl+f5 (reload without cache). This removes the font flashing.
Tested in Chrome and Firefox.
fixes#23627
```nim
type
TestObj = object of RootObj
TestTestObj = object of RootObj
testo: TestObj
proc `=destroy`(x: TestTestObj) =
echo "Destructor for TestTestObj"
proc testCaseT() =
echo "\nTest Case T"
let tt1 {.used.} = TestTestObj(testo: TestObj())
```
When generating const object fields, it's likely that
we need to generate type infos for the object, which may be an object
with
custom hooks. We need to generate potential consts in the hooks first.
https://github.com/nim-lang/Nim/pull/20433 changed the semantics of
initialization. It should evaluate`BracedInit` first.
fixes#23596
When importing a module and declaring an overloadable symbol with the
same name as the module in the same scope, the module symbol can take
over and make the declared overload impossible to access. Previously
enum overloading had a quirk that bypassed this in a context where a
specific enum type was expected but this was removed in #23588. Now this
is bypassed in every place where a specific type is expected since
module symbols don't have a type and so wouldn't be compatible anyway.
But the issue still exists in places where no type is expected like `let
x = modulename`. I don't see a way of fixing this without nerfing module
symbols to the point where they're not accessible by default, which
might break some macro code.
