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SI-8285 use correct kind of map for quasiquote positions #3593

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merged 1 commit into from Mar 1, 2014
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10 changes: 5 additions & 5 deletions src/compiler/scala/tools/reflect/quasiquotes/Parsers.scala
Expand Up @@ -30,15 +30,15 @@ trait Parsers { self: Quasiquotes =>


def correspondingPosition(offset: Int): Position = { def correspondingPosition(offset: Int): Position = {
val posMapList = posMap.toList val posMapList = posMap.toList
def containsOffset(start: Int, end: Int) = start <= offset && offset <= end def containsOffset(start: Int, end: Int) = start <= offset && offset < end
def fallbackPosition = posMapList match { def fallbackPosition = posMapList match {
case (pos1, (start1, end1)) :: _ if start1 > offset => pos1 case (pos1, (start1, end1)) :: _ if start1 > offset => pos1
case _ :+ ((pos2, (start2, end2))) if offset > end2 => pos2.withPoint(pos2.point + (end2 - start2)) case _ :+ ((pos2, (start2, end2))) if end2 <= offset => pos2.withPoint(pos2.point + (end2 - start2))
} }
posMapList.sliding(2).collect { posMapList.sliding(2).collect {
case (pos1, (start1, end1)) :: _ if containsOffset(start1, end1) => (pos1, offset - start1) case (pos1, (start1, end1)) :: _ if containsOffset(start1, end1) => (pos1, offset - start1)
case (pos1, (_, end1)) :: (_, (start2, _)) :: _ if containsOffset(end1, start2) => (pos1, end1) case (pos1, (start1, end1)) :: (pos2, (start2, _)) :: _ if containsOffset(end1, start2) => (pos1, end1 - start1)
case _ :: (pos2, (start2, end2)) :: _ if containsOffset(start2, end2) => (pos2, offset - start2) case _ :: (pos2, (start2, end2)) :: _ if containsOffset(start2, end2) => (pos2, offset - start2)
}.map { case (pos, offset) => }.map { case (pos, offset) =>
pos.withPoint(pos.point + offset) pos.withPoint(pos.point + offset)
}.toList.headOption.getOrElse(fallbackPosition) }.toList.headOption.getOrElse(fallbackPosition)
Expand Down
Expand Up @@ -17,7 +17,7 @@ trait Placeholders { self: Quasiquotes =>


// Step 1: Transform Scala source with holes into vanilla Scala source // Step 1: Transform Scala source with holes into vanilla Scala source


lazy val posMap = mutable.ListMap[Position, (Int, Int)]() lazy val posMap = mutable.LinkedHashMap[Position, (Int, Int)]()
lazy val code = { lazy val code = {
val sb = new StringBuilder() val sb = new StringBuilder()
val sessionSuffix = randomUUID().toString.replace("-", "").substring(0, 8) + "$" val sessionSuffix = randomUUID().toString.replace("-", "").substring(0, 8) + "$"
Expand All @@ -40,9 +40,7 @@ trait Placeholders { self: Quasiquotes =>


val iargs = method match { val iargs = method match {
case nme.apply => args case nme.apply => args
case nme.unapply => case nme.unapply => internal.subpatterns(args.head).get
val (dummy @ Ident(nme.SELECTOR_DUMMY)) :: Nil = args
internal.subpatterns(dummy).get
case _ => global.abort("unreachable") case _ => global.abort("unreachable")
} }


Expand Down
14 changes: 13 additions & 1 deletion test/files/neg/quasiquotes-syntax-error-position.check
Expand Up @@ -32,4 +32,16 @@ quasiquotes-syntax-error-position.scala:14: error: ')' expected but end of quote
quasiquotes-syntax-error-position.scala:15: error: ':' expected but ')' found. quasiquotes-syntax-error-position.scala:15: error: ':' expected but ')' found.
q"def foo(x)" q"def foo(x)"
^ ^
11 errors found quasiquotes-syntax-error-position.scala:16: error: illegal start of simple expression
q"$a(])"
^
quasiquotes-syntax-error-position.scala:17: error: in XML literal: '>' expected instead of '$'
q"foo bar <xml$a>"
^
quasiquotes-syntax-error-position.scala:19: error: ';' expected but '<:' found.
q"val $x: $x <: $x"
^
quasiquotes-syntax-error-position.scala:20: error: '=' expected but '.' found.
q"def f ( $x ) . $x"
^
15 errors found
5 changes: 5 additions & 0 deletions test/files/neg/quasiquotes-syntax-error-position.scala
Expand Up @@ -13,4 +13,9 @@ object test extends App {
cq"pattern => body ; case pattern2 =>" cq"pattern => body ; case pattern2 =>"
pq"$a(bar" pq"$a(bar"
q"def foo(x)" q"def foo(x)"
q"$a(])"
q"foo bar <xml$a>"
val x = q"x"
q"val $x: $x <: $x"
q"def f ( $x ) . $x"
} }