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-rw-r--r--src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala14
-rw-r--r--src/compiler/scala/tools/nsc/typechecker/Contexts.scala19
-rw-r--r--src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala2
3 files changed, 10 insertions, 25 deletions
diff --git a/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala b/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala
index c8b7fcee8f..524f98fb84 100644
--- a/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala
+++ b/src/compiler/scala/tools/nsc/symtab/classfile/Pickler.scala
@@ -31,18 +31,6 @@ abstract class Pickler extends SubComponent {
def newPhase(prev: Phase): StdPhase = new PicklePhase(prev)
class PicklePhase(prev: Phase) extends StdPhase(prev) {
- override def run() {
- super.run()
- // This is run here rather than after typer because I found
- // some symbols - usually annotations, possibly others - had not
- // yet performed the necessary symbol lookup, leading to
- // spurious claims of unusedness.
- if (settings.lint.value) {
- log("Clearing recorded import selectors.")
- analyzer.clearUnusedImports()
- }
- }
-
def apply(unit: CompilationUnit) {
def pickle(tree: Tree) {
def add(sym: Symbol, pickle: Pickle) = {
@@ -83,8 +71,6 @@ abstract class Pickler extends SubComponent {
}
pickle(unit.body)
- if (settings.lint.value)
- analyzer.warnUnusedImports(unit)
}
}
diff --git a/src/compiler/scala/tools/nsc/typechecker/Contexts.scala b/src/compiler/scala/tools/nsc/typechecker/Contexts.scala
index 22a28b7895..0ae5c2be03 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Contexts.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Contexts.scala
@@ -51,20 +51,17 @@ trait Contexts { self: Analyzer =>
private lazy val allImportInfos =
mutable.Map[CompilationUnit, List[ImportInfo]]() withDefaultValue Nil
- def clearUnusedImports() {
- allUsedSelectors.clear()
- allImportInfos.clear()
- }
def warnUnusedImports(unit: CompilationUnit) = {
- val imps = allImportInfos(unit).reverse.distinct
-
- for (imp <- imps) {
- val used = allUsedSelectors(imp)
- def isMask(s: ImportSelector) = s.name != nme.WILDCARD && s.rename == nme.WILDCARD
+ for (imps <- allImportInfos.remove(unit)) {
+ for (imp <- imps.reverse.distinct) {
+ val used = allUsedSelectors(imp)
+ def isMask(s: ImportSelector) = s.name != nme.WILDCARD && s.rename == nme.WILDCARD
- imp.tree.selectors filterNot (s => isMask(s) || used(s)) foreach { sel =>
- unit.warning(imp posOf sel, "Unused import")
+ imp.tree.selectors filterNot (s => isMask(s) || used(s)) foreach { sel =>
+ unit.warning(imp posOf sel, "Unused import")
+ }
}
+ allUsedSelectors --= imps
}
}
diff --git a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
index af484a47e2..20fc44bed1 100644
--- a/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/TypeDiagnostics.scala
@@ -486,6 +486,8 @@ trait TypeDiagnostics {
}
def apply(unit: CompilationUnit) = {
+ warnUnusedImports(unit)
+
val p = new UnusedPrivates
p traverse unit.body
val unused = p.unusedTerms