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Improve debuggability for compiler crash when using tasty reflect #6580

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May 29, 2019
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Improve debuggability for compiler crash when using tasty reflect #6580

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2 changes: 1 addition & 1 deletion compiler/src/dotty/tools/dotc/ast/tpd.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1129,7 +1129,7 @@ object tpd extends Trees.Instance[Type] with TypedTreeInfo {
val alternatives = ctx.typer.resolveOverloaded(allAlts, proto)
assert(alternatives.size == 1,
i"${if (alternatives.isEmpty) "no" else "multiple"} overloads available for " +
i"$method on ${receiver.tpe.widenDealiasKeepAnnots} with targs: $targs%, %; args: $args%, % of types ${args.tpes}%, %; expectedType: $expectedType." +
i"$method on ${receiver.tpe.widenDealiasKeepAnnots} with targs: $targs%, %; args: $args%, % of types ${args.tpes.map(_.widenDealiasKeepAnnots)}%, %; expectedType: $expectedType." +
i"all alternatives: ${allAlts.map(_.symbol.showDcl).mkString(", ")}\n" +
i"matching alternatives: ${alternatives.map(_.symbol.showDcl).mkString(", ")}.") // this is parsed from bytecode tree. there's nothing user can do about it
alternatives.head
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