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62d8ca4306
fixes #22775
It's pre-existing that [`prepareOperand` doesn't typecheck expressions
which have
types](a4f3bf3742/compiler/sigmatch.nim (L2444)).
Templates can take typed subscript expressions, transform them into
calls to `[]`, and then have this `[]` not be resolved later if the
expression is nested inside of a call argument, which leaks an untyped
expression past semantic analysis. To prevent this, don't transform any
typed subscript expressions into calls to `[]` in templates. Ditto for
curly subscripts (with `{}`) and assignments to subscripts and curly
subscripts (with `[]=` and `{}=`).
39 lines
699 B
Nim
39 lines
699 B
Nim
block: # issue #22775
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proc h(c: int) = discard
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template k(v: int) =
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template p() = v.h()
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p()
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let a = @[0]
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k(0 and not a[0])
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block: # issue #22775 case 2
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proc h(c: int, q: int) = discard
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template k(v: int) =
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template p() = h(v, v)
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p()
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let a = [0]
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k(0 and not a[0])
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block: # issue #22775 minimal cases
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proc h(c: int) = discard
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template k(v: int) =
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template p() = h(v)
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p()
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let a = [0]
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k(not a[0])
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block:
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k(-a[0])
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block:
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proc f(x: int): int = x
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k(f a[0])
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block: # bracket assignment case of above tests
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proc h(c: int) = discard
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template k(v: int) =
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template p() = h(v)
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p()
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var a = [0]
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k(not (block:
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a[0] = 1
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1))
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