- rewrote the phase creation process

- replace PhaseRepository by CompilerPhases

1 files changed, 112 insertions, 0 deletions

diff --git a/sources/scalac/Phase.java b/sources/scalac/Phase.java
index b0a4efe13f..eb0e87f274 100644
--- a/sources/scalac/Phase.java
+++ b/sources/scalac/Phase.java
@@ -5,3 +5,115 @@
 \*                                                                      */
 
 // $Id$
+
+package scalac;
+
+import scalac.ast.printer.TreePrinter;
+import scalac.symtab.Symbol;
+import scalac.symtab.Type;
+import scalac.checkers.Checker;
+
+public abstract class Phase {
+
+    // !!! remove these obsolete methods !
+    public final String name()  {
+        throw new Error("!!! obsolete");
+    }
+    public final String taskDescription() {
+        throw new Error("!!! obsolete");
+    }
+    public final String description()  {
+        throw new Error("!!! obsolete");
+    }
+    public final void initialize(Global global) {
+        throw new Error("!!! obsolete");
+    }
+    public final void initialize(Global global, int id) {
+        throw new Error("!!! obsolete");
+    }
+    public final void apply(Global global) {
+        throw new Error("!!! obsolete");
+    }
+    public final void apply(Unit unit) {
+        throw new Error("!!! obsolete");
+    }
+
+    //########################################################################
+    // Public Fields
+
+    /** The global environment */
+    public final Global global;
+
+    /** The phase descriptor */
+    public final PhaseDescriptor descriptor;
+
+    /** The phase identifier */
+    public final int id;
+
+    //########################################################################
+    // Public Constructors
+
+    /** Initializes this instance. */
+    public Phase(Global global, PhaseDescriptor descriptor) {
+        this.global = global;
+        this.descriptor = descriptor;
+        this.id = descriptor.id();
+        global.currentPhase = global.phases[id] = this;
+    }
+
+    //########################################################################
+    // Public Methods
+
+    /**
+     * Returns the info of `sym' after the phase. Assumes that `tp' is
+     * the info of symbol `sym' before this phase.
+     */
+    public Type transformInfo(Symbol sym, Type tp) {
+        return tp;
+    }
+
+    /** Applies this phase to the given compilation units. */
+    public abstract void apply(Unit[] units);
+
+    /** Prints all compilation units. */
+    public void print(Global global) {
+        TreePrinter printer = global.printer;
+        printer.beginSection(1, "Trees after phase " + this);
+        for (int i = 0; i < global.units.length; i++)
+            printer.print(global.units[i]);
+    }
+
+    /** Graphs all compilation units. */
+    public void graph(Global global) {
+        for (int i = 0; i < global.units.length; i++) graph(global.units[i]);
+    }
+
+    /** Graphs the result of this phase for the given compilation unit. */
+    public void graph(Unit unit) {
+        // !!! new scala.compiler.gdl.TreePrinter().printInFile(
+        // !!!     unit, unit.source + "-" + name() + ".gdl");
+    }
+
+    /** Checks all compilation units. */
+    public void check(Global global) {
+        for (int i = 0; i < global.units.length; i++) check(global.units[i]);
+    }
+
+    /** Check the result of this phase for the given compilation unit. */
+    public void check(Unit unit) {
+        Checker[] checkers = postCheckers(unit.global);
+        for (int i = 0; i < checkers.length; i++) checkers[i].traverse(unit);
+    }
+
+    /** Returns an array of checkers which can be applied after the phase. */
+    public Checker[] postCheckers(Global global) {
+        return new Checker[0];
+    }
+
+    /** Returns the name of this phase. */
+    public final String toString() {
+        return descriptor.name();
+    }
+
+    //########################################################################
+}