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new .redefine pragma for templates, warn on redefinition without it (#20211)

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* test CI for template redefinitions

* adapt asyncmacro

* fix quote

* fix again

* try something else

* revert

* fix ioselectors_select, disable packages CI

* adapt more tests & simplify

* more

* more

* more

* rename to redefine, warn on implicit redefinition

* basic documentation [skip ci]

* Update compiler/lineinfos.nim

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>
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metagn 2022-08-23 22:41:30 +03:00 • committed by GitHub
commit d1d141b135
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19 changed files with 85 additions and 25 deletions
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tests/template/template_various.nim
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@ -274,10 +274,10 @@ parse9:
block gensym1:
template x: untyped = -1
template t1() =
template x: untyped {.gensym.} = 1
template x: untyped {.gensym, redefine.} = 1
echo x() # 1
template t2() =
template x: untyped = 1 # defaults to {.inject.}
template x: untyped {.redefine.} = 1 # defaults to {.inject.}
echo x() # -1 injected x not available during template definition
t1()
t2()