Merge remote-tracking branch 'gkossakowski/separate-dependency-phase' into 0.13

compile/inc/src/main/scala/sbt/inc/Compile.scala

@@ -151,9 +151,6 @@ private final class AnalysisCallback(internalMap: File => Option[File], external
 		apis(sourceFile) = (HashAPI(source), savedSource)
 	}
 
-	def endSource(sourcePath: File): Unit =
-		assert(apis.contains(sourcePath))
-
 	def get: Analysis = addCompilation( addExternals( addBinaries( addProducts( addSources(Analysis.Empty) ) ) ) )
 	def addProducts(base: Analysis): Analysis = addAll(base, classes) { case (a, src, (prod, name)) => a.addProduct(src, prod, current product prod, name ) }
 	def addBinaries(base: Analysis): Analysis = addAll(base, binaryDeps)( (a, src, bin) => a.addBinaryDep(src, bin, binaryClassName(bin), current binary bin) )
@@ -178,6 +175,4 @@ private final class AnalysisCallback(internalMap: File => Option[File], external
 			(outer /: bs) { (inner, b) =>
 				f(inner, a, b)
 		} }
-
-	def beginSource(source: File) {}
 }

compile/interface/src/main/scala/xsbt/Analyzer.scala

@@ -23,40 +23,13 @@ final class Analyzer(val global: CallbackGlobal) extends LocateClassFile
 	def newPhase(prev: Phase): Phase = new AnalyzerPhase(prev)
 	private class AnalyzerPhase(prev: Phase) extends Phase(prev)
 	{
-		override def description = "Extracts dependency information, finds concrete instances of provided superclasses, and application entry points."
+		override def description = "Finds concrete instances of provided superclasses, and application entry points."
 		def name = Analyzer.name
 		def run
 		{
 			for(unit <- currentRun.units if !unit.isJava)
 			{
-				// build dependencies structure
 				val sourceFile = unit.source.file.file
-				callback.beginSource(sourceFile)
-				for(on <- unit.depends) processDependency(on, inherited=false)
-				for(on <- inheritedDependencies.getOrElse(sourceFile, Nil: Iterable[Symbol])) processDependency(on, inherited=true)
-				def processDependency(on: Symbol, inherited: Boolean)
-				{
-					def binaryDependency(file: File, className: String) = callback.binaryDependency(file, className, sourceFile, inherited)
-					val onSource = on.sourceFile
-					if(onSource == null)
-					{
-						classFile(on) match
-						{
-							case Some((f,className,inOutDir)) =>
-								if(inOutDir && on.isJavaDefined) registerTopLevelSym(on)
-								f match
-								{
-									case ze: ZipArchive#Entry => for(zip <- ze.underlyingSource; zipFile <- Option(zip.file) ) binaryDependency(zipFile, className)
-									case pf: PlainFile => binaryDependency(pf.file, className)
-									case _ => ()
-								}
-							case None => ()
-						}
-					}
-					else
-						callback.sourceDependency(onSource.file, sourceFile, inherited)
-				}
-
 				// build list of generated classes
 				for(iclass <- unit.icode)
 				{
@@ -75,10 +48,8 @@ final class Analyzer(val global: CallbackGlobal) extends LocateClassFile
 					else
 						addGenerated(false)
 				}
-				callback.endSource(sourceFile)
+			}
 		}
 	}
 }
 
-}
-

compile/interface/src/main/scala/xsbt/CompilerInterface.scala

@@ -176,6 +176,26 @@ private final class CachedCompiler0(args: Array[String], output: Output, initial
 			def newPhase(prev: Phase) = analyzer.newPhase(prev)
 			def name = phaseName
 		}
+
+		/** Phase that extracts dependency information */
+		object sbtDependency extends
+		{
+			val global: Compiler.this.type = Compiler.this
+			val phaseName = Dependency.name
+			val runsAfter = List(API.name)
+			override val runsBefore = List("refchecks")
+			// keep API and dependency close to each other
+			// we might want to merge them in the future and even if don't
+			// do that then it makes sense to run those phases next to each other
+			val runsRightAfter = Some(API.name)
+		}
+		with SubComponent
+		{
+			val dependency = new Dependency(global)
+			def newPhase(prev: Phase) = dependency.newPhase(prev)
+			def name = phaseName
+		}
+
 		/** This phase walks trees and constructs a representation of the public API, which is used for incremental recompilation.
 		 *
 		 * We extract the api after picklers, since that way we see the same symbol information/structure
@@ -202,6 +222,7 @@ private final class CachedCompiler0(args: Array[String], output: Output, initial
 		override lazy val phaseDescriptors =
 		{
 			phasesSet += sbtAnalyzer
+			phasesSet += sbtDependency
 			phasesSet += apiExtractor
 			superComputePhaseDescriptors
 		}

compile/interface/src/main/scala/xsbt/Dependency.scala

@@ -0,0 +1,74 @@
+/* sbt -- Simple Build Tool
+ * Copyright 2008, 2009 Mark Harrah
+ */
+package xsbt
+
+import scala.tools.nsc.{io, symtab, Phase}
+import io.{AbstractFile, PlainFile, ZipArchive}
+import symtab.Flags
+
+import java.io.File
+
+object Dependency
+{
+	def name = "xsbt-dependency"
+}
+/**
+ * Extracts dependency information from each compilation unit.
+ *
+ * This phase uses CompilationUnit.depends and CallbackGlobal.inheritedDependencies
+ * to collect all symbols that given compilation unit depends on. Those symbols are
+ * guaranteed to represent Class-like structures.
+ *
+ * The CallbackGlobal.inheritedDependencies is populated by the API phase. See,
+ * ExtractAPI class.
+ *
+ * When dependency symbol is processed, it is mapped back to either source file where
+ * it's defined in (if it's available in current compilation run) or classpath entry
+ * where it originates from. The Symbol->Classfile mapping is implemented by
+ * LocateClassFile that we inherit from.
+ */
+final class Dependency(val global: CallbackGlobal) extends LocateClassFile
+{
+	import global._
+
+	def newPhase(prev: Phase): Phase = new DependencyPhase(prev)
+	private class DependencyPhase(prev: Phase) extends Phase(prev)
+	{
+		override def description = "Extracts dependency information"
+		def name = Dependency.name
+		def run
+		{
+			for(unit <- currentRun.units if !unit.isJava)
+			{
+				// build dependencies structure
+				val sourceFile = unit.source.file.file
+				for(on <- unit.depends) processDependency(on, inherited=false)
+				for(on <- inheritedDependencies.getOrElse(sourceFile, Nil: Iterable[Symbol])) processDependency(on, inherited=true)
+				def processDependency(on: Symbol, inherited: Boolean)
+				{
+					def binaryDependency(file: File, className: String) = callback.binaryDependency(file, className, sourceFile, inherited)
+					val onSource = on.sourceFile
+					if(onSource == null)
+					{
+						classFile(on) match
+						{
+							case Some((f,className,inOutDir)) =>
+								if(inOutDir && on.isJavaDefined) registerTopLevelSym(on)
+								f match
+								{
+									case ze: ZipArchive#Entry => for(zip <- ze.underlyingSource; zipFile <- Option(zip.file) ) binaryDependency(zipFile, className)
+									case pf: PlainFile => binaryDependency(pf.file, className)
+									case _ => ()
+								}
+							case None => ()
+						}
+					}
+					else
+						callback.sourceDependency(onSource.file, sourceFile, inherited)
+				}
+			}
+		}
+	}
+
+}

interface/src/main/java/xsbti/AnalysisCallback.java

@@ -7,8 +7,6 @@ import java.io.File;
 
 public interface AnalysisCallback
 {
-	/** Called before the source at the given location is processed. */
-	public void beginSource(File source);
 	/** Called to indicate that the source file <code>source</code> depends on the source file
 	* <code>dependsOn</code>.  Note that only source files included in the current compilation will
 	* passed to this method.  Dependencies on classes generated by sources not in the current compilation will
@@ -24,8 +22,6 @@ public interface AnalysisCallback
 	/** Called to indicate that the source file <code>source</code> produces a class file at
 	* <code>module</code> contain class <code>name</code>.*/
 	public void generatedClass(File source, File module, String name);
-	/** Called after the source at the given location has been processed. */
-	public void endSource(File sourcePath);
 	/** Called when the public API of a source file is extracted. */
 	public void api(File sourceFile, xsbti.api.SourceAPI source);
 	/** Provides problems discovered during compilation.  These may be reported (logged) or unreported.

interface/src/test/scala/TestCallback.scala

@@ -5,19 +5,14 @@ package xsbti
 
 class TestCallback extends AnalysisCallback
 {
-	val beganSources = new ArrayBuffer[File]
-	val endedSources = new ArrayBuffer[File]
 	val sourceDependencies = new ArrayBuffer[(File, File, Boolean)]
 	val binaryDependencies = new ArrayBuffer[(File, String, File, Boolean)]
 	val products = new ArrayBuffer[(File, File, String)]
 	val apis = new ArrayBuffer[(File, xsbti.api.SourceAPI)]
 
-	def beginSource(source: File) { beganSources += source }
-
 	def sourceDependency(dependsOn: File, source: File, inherited: Boolean) { sourceDependencies += ((dependsOn, source, inherited)) }
 	def binaryDependency(binary: File, name: String, source: File, inherited: Boolean) { binaryDependencies += ((binary, name, source, inherited)) }
 	def generatedClass(source: File, module: File, name: String) { products += ((source, module, name)) }
-	def endSource(source: File) { endedSources += source }
 
 	def api(source: File, sourceAPI: xsbti.api.SourceAPI) { apis += ((source, sourceAPI)) }
 	def problem(category: String, pos: xsbti.Position, message: String, severity: xsbti.Severity, reported: Boolean) {}

util/classfile/src/main/scala/sbt/classfile/Analyze.scala

@@ -33,7 +33,6 @@ private[sbt] object Analyze
 			sourceFile <- classFile.sourceFile orElse guessSourceName(newClass.getName);
 			source <- guessSourcePath(sourceMap, classFile, log))
 		{
-			analysis.beginSource(source)
 			analysis.generatedClass(source, newClass, classFile.className)
 			productToSource(newClass) = source
 			sourceToClassFiles.getOrElseUpdate(source, new ArrayBuffer[ClassFile]) += classFile
@@ -69,13 +68,10 @@ private[sbt] object Analyze
 			val notInherited = classFiles.flatMap(_.types).toSet -- publicInherited
 			processDependencies(notInherited, false)
 			processDependencies(publicInherited, true)
-			analysis.endSource(source)
 		}
 
 		for( source <- sources filterNot sourceToClassFiles.keySet ) {
-			analysis.beginSource(source)
 			analysis.api(source, new xsbti.api.SourceAPI(Array(), Array()))
-			analysis.endSource(source)
 		}
 	}
 	private[this] def urlAsFile(url: URL, log: Logger): Option[File] =