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fix bugs with dot & call operators [backport] (nim-lang#20931)
* better error messages for dot operators [backport] fixes nim-lang#13063 * also fixes nim-lang#7777 * fix nim-lang#6981 and nim-lang#9831 too * fix * minor improvement * sus test fixes * make test multiplatform lol * fix nimsuggest test, extra improvements
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| discard """ | ||
| action: reject | ||
| cmd: '''nim check $options $file''' | ||
| matrix: "; -d:testWithout" | ||
| """ | ||
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| when not defined(testWithout): # test for same errors before and after | ||
| {.experimental: "dotOperators".} | ||
| {.experimental: "callOperator".} | ||
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| # issue #13063 | ||
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| block: | ||
| type Foo = object | ||
| type Bar = object | ||
| x1: int | ||
| var b: Bar | ||
| block: | ||
| template `.`(a: Foo, b: untyped): untyped = 123 | ||
| echo b.x #[tt.Error | ||
| ^ undeclared field: 'x' for type terrmsgs.Bar [type declared in terrmsgs.nim(15, 8)]]# | ||
| block: | ||
| template `.()`(a: Foo, b: untyped): untyped = 123 | ||
| echo b.x() #[tt.Error | ||
| ^ attempting to call undeclared routine: 'x']# | ||
| block: | ||
| template `.=`(a: Foo, b: untyped, c: untyped) = b = c | ||
| b.x = 123 #[tt.Error | ||
| ^ undeclared field: 'x=' for type terrmsgs.Bar [type declared in terrmsgs.nim(15, 8)]]# | ||
| # yeah it says x= but does it matter in practice | ||
| block: | ||
| template `()`(a: Foo, b: untyped, c: untyped) = echo "something" | ||
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| # completely undeclared:: | ||
| xyz(123) #[tt.Error | ||
| ^ undeclared identifier: 'xyz']# | ||
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| # already declared routine: | ||
| min(123) #[tt.Error | ||
| ^ type mismatch: got <int literal(123)>]# | ||
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| # non-routine type shows `()` overloads: | ||
| b(123) #[tt.Error | ||
| ^ attempting to call routine: 'b']# | ||
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| echo b.x #[tt.Error | ||
| ^ undeclared field: 'x' for type terrmsgs.Bar [type declared in terrmsgs.nim(15, 8)]]# | ||
| echo b.x() #[tt.Error | ||
| ^ attempting to call undeclared routine: 'x']# | ||
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| # issue #7777 | ||
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| import macros | ||
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| block: | ||
| type TestType = object | ||
| private_field: string | ||
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| when false: | ||
| template getField(obj, field: untyped): untyped = obj.field | ||
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| macro `.`(obj: TestType, field: untyped): untyped = | ||
| let private = newIdentNode("private_" & $field) | ||
| result = quote do: | ||
| `obj`.getField(`private`) #[tt.Error | ||
| ^ attempting to call undeclared routine: 'getField']# | ||
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| var tt: TestType | ||
| discard tt.field | ||
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| block: # related to issue #6981 | ||
| proc `()`(a:string, b:string):string = a & b | ||
| proc mewSeq[T](a,b:int)=discard | ||
| proc mewSeq[T](c:int)= discard | ||
| mewSeq[int]() #[tt.Error | ||
| ^ type mismatch: got <>]# |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| # issue #6981 | ||
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| import std/assertions | ||
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| {.experimental: "callOperator".} | ||
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| block: # issue #6981 | ||
| proc `()`(a:string, b:string):string = a & b | ||
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| var s = newSeq[int](3) | ||
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| doAssert s == @[0, 0, 0] | ||
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| block: # generalized example from #6981 | ||
| proc mewSeq[T](a: int)=discard | ||
| proc mewSeq[T]()= discard | ||
| mewSeq[int]() | ||
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| block: # issue #9831 | ||
| type Foo = object | ||
| proc `()`(foo: Foo) = discard | ||
| let x = newSeq[int]() |