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| author | ringabout <43030857+ringabout@users.noreply.github.com> | 2023-11-28 22:11:43 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-11-28 15:11:43 +0100 |
| commit | 30cf33f04dfb768182accb3ad35ec6364c998664 (patch) | |
| tree | 63dc0d6a36bc662b94246392e03a26b7eaeb116d /tests/method/tvtable.nim | |
| parent | 8cad6ac0487800f7d41e38303e52129777e6c22e (diff) | |
| download | Nim-30cf33f04dfb768182accb3ad35ec6364c998664.tar.gz | |
rework the vtable implementation embedding the vtable array directly with new strictions on methods (#22991)
**TODO** - [x] fixes changelog With the new option `nimPreviewVtables`, `methods` are confined in the same module where the type of the first parameter is defined - [x] make it opt in after CI checks its feasibility ## In the following-up PRs - [ ] in the following PRs, refactor code into a more efficient one - [ ] cpp needs special treatments since it cannot embed array in light of the preceding limits: ref https://github.com/nim-lang/Nim/pull/20977#discussion_r1035528927; we can support cpp backends with vtable implementations later on the comprise that uses indirect vtable access --------- Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
Diffstat (limited to 'tests/method/tvtable.nim')
| -rw-r--r-- | tests/method/tvtable.nim | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/method/tvtable.nim b/tests/method/tvtable.nim new file mode 100644 index 000000000..8d98dd42c --- /dev/null +++ b/tests/method/tvtable.nim @@ -0,0 +1,19 @@ +type FooBase = ref object of RootObj + dummy: int +type Foo = ref object of FooBase + value : float32 +type Foo2 = ref object of Foo + change : float32 +method bar(x: FooBase, a: float32) {.base.} = + discard +method bar(x: Foo, a: float32) = + x.value += a +method bar(x: Foo2, a: float32) = + x.value += a + + +proc test() = + var x = new Foo2 + x.bar(2.3) + +test() \ No newline at end of file |