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Fix #2782: Force less things when parsing generic signatures #2831

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Merged
merged 1 commit into from
Jul 6, 2017
Merged

Fix #2782: Force less things when parsing generic signatures #2831

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16 changes: 12 additions & 4 deletions compiler/src/dotty/tools/dotc/core/classfile/ClassfileParser.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -296,7 +296,11 @@ class ClassfileParser(
if (sig(index) == '<') {
accept('<')
var tp1: Type = tp
var formals = tp.typeParamSymbols
var formals: List[Symbol] =
if (skiptvs)
null
else
tp.typeParamSymbols
while (sig(index) != '>') {
sig(index) match {
case variance @ ('+' | '-' | '*') =>
Expand All @@ -311,11 +315,15 @@ class ClassfileParser(
else TypeBounds.lower(tp)
case '*' => TypeBounds.empty
}
tp1 = RefinedType(tp1, formals.head.name, bounds)
if (formals != null)
tp1 = RefinedType(tp1, formals.head.name, bounds)
case _ =>
tp1 = RefinedType(tp1, formals.head.name, TypeAlias(sig2type(tparams, skiptvs)))
val info = sig2type(tparams, skiptvs)
if (formals != null)
tp1 = RefinedType(tp1, formals.head.name, TypeAlias(info))
}
formals = formals.tail
if (formals != null)
formals = formals.tail
}
accept('>')
tp1
Expand Down