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Fix #7189: Do not try to load contents if file does not exist #7476

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Oct 31, 2019
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Fix #7189: Do not try to load contents if file does not exist #7476

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3 changes: 2 additions & 1 deletion compiler/src/dotty/tools/dotc/ast/Trees.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -368,7 +368,8 @@ object Trees {
// name (e.g. in a comment) before finding the real definition.
// To make this behavior more robust we'd have to change the trees for definitions to contain
// a fully positioned Ident in place of a name.
val idx = source.content().indexOfSlice(realName, point)
val contents = if source.exists then source.content() else Array.empty[Char]
val idx = contents.indexOfSlice(realName, point)
if (idx >= 0) idx
else point // use `point` anyway. This is important if no source exists so scanning fails
}
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