refactoring and code cleanup in gluegen.opengl and gluegen.procaddress package.

1 files changed, 122 insertions, 124 deletions

diff --git a/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java b/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java
index 314a9bb79..f20495b65 100755
--- a/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java
+++ b/src/java/com/sun/gluegen/nativesig/NativeSignatureEmitter.java
@@ -36,7 +36,6 @@
  * Sun gratefully acknowledges that this software was originally authored
  * and developed by Kenneth Bradley Russell and Christopher John Kline.
  */
-
 package com.sun.gluegen.nativesig;
 
 import java.io.*;
@@ -47,142 +46,141 @@ import com.sun.gluegen.cgram.types.*;
 import com.sun.gluegen.opengl.*;
 import com.sun.gluegen.procaddress.*;
 
-/** Emitter producing NativeSignature attributes. */
-
+/**
+ * Emitter producing NativeSignature attributes.
+ */
 public class NativeSignatureEmitter extends GLEmitter {
-  protected List generateMethodBindingEmitters(HashSet/*<MethodBinding>*/ methodBindingSet, FunctionSymbol sym) throws Exception {
-    // Allow superclass to do most of the work for us
-    List res = super.generateMethodBindingEmitters(methodBindingSet, sym);
-
-    // Filter out all non-JavaMethodBindingEmitters
-    for (Iterator iter = res.iterator(); iter.hasNext(); ) {
-      FunctionEmitter emitter = (FunctionEmitter) iter.next();
-      if (!(emitter instanceof JavaMethodBindingEmitter)) {
-        iter.remove();
-      }
-    }
 
-    if (res.isEmpty()) {
-      return res;
-    }
+    @Override
+    protected List<? extends FunctionEmitter> generateMethodBindingEmitters(Set<MethodBinding> methodBindingSet, FunctionSymbol sym) throws Exception {
 
-    PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
+        // Allow superclass to do most of the work for us
+        List<? extends FunctionEmitter> res = super.generateMethodBindingEmitters(methodBindingSet, sym);
 
-    List processed = new ArrayList();
+        // Filter out all non-JavaMethodBindingEmitters
+        for (Iterator<? extends FunctionEmitter> iter = res.iterator(); iter.hasNext();) {
+            FunctionEmitter emitter = iter.next();
+            if (!(emitter instanceof JavaMethodBindingEmitter)) {
+                iter.remove();
+            }
+        }
 
-    // First, filter out all emitters going to the "other" (public) writer
-    for (Iterator iter = res.iterator(); iter.hasNext(); ) {
-      FunctionEmitter emitter = (FunctionEmitter) iter.next();
-      if (emitter.getDefaultOutput() != writer) {
-        processed.add(emitter);
-        iter.remove();
-      }
-    }
+        if (res.isEmpty()) {
+            return res;
+        }
+
+        PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
+
+        List<FunctionEmitter> processed = new ArrayList<FunctionEmitter>();
 
-    // Now process all of the remaining emitters sorted by MethodBinding
-    while (!res.isEmpty()) {
-      List emittersForBinding = new ArrayList();
-      JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) res.remove(0);
-      emittersForBinding.add(emitter);
-      MethodBinding binding = emitter.getBinding();
-      for (Iterator iter = res.iterator(); iter.hasNext(); ) {
-        JavaMethodBindingEmitter emitter2 = (JavaMethodBindingEmitter) iter.next();
-        if (emitter2.getBinding() == binding) {
-          emittersForBinding.add(emitter2);
-          iter.remove();
+        // First, filter out all emitters going to the "other" (public) writer
+        for (Iterator<? extends FunctionEmitter> iter = res.iterator(); iter.hasNext();) {
+            FunctionEmitter emitter = iter.next();
+            if (emitter.getDefaultOutput() != writer) {
+                processed.add(emitter);
+                iter.remove();
+            }
         }
-      }
-      generateNativeSignatureEmitters(binding, emittersForBinding);
-      processed.addAll(emittersForBinding);
-    }
 
-    return processed;
-  }
+        // Now process all of the remaining emitters sorted by MethodBinding
+        while (!res.isEmpty()) {
+            List<JavaMethodBindingEmitter> emittersForBinding = new ArrayList<JavaMethodBindingEmitter>();
+            JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) res.remove(0);
+            emittersForBinding.add(emitter);
+            MethodBinding binding = emitter.getBinding();
+            for (Iterator<? extends FunctionEmitter> iter = res.iterator(); iter.hasNext();) {
+                JavaMethodBindingEmitter emitter2 = (JavaMethodBindingEmitter) iter.next();
+                if (emitter2.getBinding() == binding) {
+                    emittersForBinding.add(emitter2);
+                    iter.remove();
+                }
+            }
+            generateNativeSignatureEmitters(binding, emittersForBinding);
+            processed.addAll(emittersForBinding);
+        }
 
-  protected void generateNativeSignatureEmitters(MethodBinding binding,
-                                                 List allEmitters) {
-    if (allEmitters.isEmpty()) {
-      return;
+        return processed;
     }
 
-    PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
-    
-    // Give ourselves the chance to interpose on the generation of all code to keep things simple
-    List newEmitters = new ArrayList();
-    for (Iterator iter = allEmitters.iterator(); iter.hasNext(); ) {
-      JavaMethodBindingEmitter javaEmitter = (JavaMethodBindingEmitter) iter.next();
-      NativeSignatureJavaMethodBindingEmitter newEmitter = null;
-      if (javaEmitter instanceof GLJavaMethodBindingEmitter) {
-        newEmitter = new NativeSignatureJavaMethodBindingEmitter((GLJavaMethodBindingEmitter) javaEmitter);
-      } else if (javaEmitter instanceof ProcAddressJavaMethodBindingEmitter) {
-        newEmitter = new NativeSignatureJavaMethodBindingEmitter((ProcAddressJavaMethodBindingEmitter) javaEmitter);
-      } else {
-        newEmitter = new NativeSignatureJavaMethodBindingEmitter(javaEmitter, this);
-      }
-      newEmitters.add(newEmitter);
-    }
-    allEmitters.clear();
-    allEmitters.addAll(newEmitters);
-
-    // Detect whether we need to produce more or modify some of these emitters.
-    // Note that at this point we are assuming that generatePublicEmitters has
-    // been called with signatureOnly both true and false.
-    if (signatureContainsStrings(binding) &&
-        !haveEmitterWithBody(allEmitters)) {
-      // This basically handles glGetString but also any similar methods
-      NativeSignatureJavaMethodBindingEmitter javaEmitter = findEmitterWithWriter(allEmitters, writer);
-
-      // First, we need to clone this emitter to produce the native
-      // entry point
-      NativeSignatureJavaMethodBindingEmitter emitter =
-        new NativeSignatureJavaMethodBindingEmitter(javaEmitter);
-      emitter.removeModifier(JavaMethodBindingEmitter.PUBLIC);
-      emitter.addModifier(JavaMethodBindingEmitter.PRIVATE);
-      emitter.setForImplementingMethodCall(true);
-      // Note: this is chosen so we don't have to change the logic in
-      // emitReturnVariableSetupAndCall which decides which variant
-      // (direct / indirect) to call
-      emitter.setForDirectBufferImplementation(true);
-      allEmitters.add(emitter);
-
-      // Now make the original emitter non-native and cause it to emit a body
-      javaEmitter.removeModifier(JavaMethodBindingEmitter.NATIVE);
-      javaEmitter.setEmitBody(true);
-    }
-  }
-
-  protected boolean signatureContainsStrings(MethodBinding binding) {
-    for (int i = 0; i < binding.getNumArguments(); i++) {
-      JavaType type = binding.getJavaArgumentType(i);
-      if (type.isString() || type.isStringArray()) {
-        return true;
-      }
+    protected void generateNativeSignatureEmitters(MethodBinding binding, List<JavaMethodBindingEmitter> allEmitters) {
+
+        if (allEmitters.isEmpty()) {
+            return;
+        }
+
+        PrintWriter writer = (getConfig().allStatic() ? javaWriter() : javaImplWriter());
+
+        // Give ourselves the chance to interpose on the generation of all code to keep things simple
+        List<JavaMethodBindingEmitter> newEmitters = new ArrayList<JavaMethodBindingEmitter>();
+        for (JavaMethodBindingEmitter javaEmitter : allEmitters) {
+            NativeSignatureJavaMethodBindingEmitter newEmitter = null;
+            if (javaEmitter instanceof GLJavaMethodBindingEmitter) {
+                newEmitter = new NativeSignatureJavaMethodBindingEmitter((GLJavaMethodBindingEmitter) javaEmitter);
+            } else if (javaEmitter instanceof ProcAddressJavaMethodBindingEmitter) {
+                newEmitter = new NativeSignatureJavaMethodBindingEmitter((ProcAddressJavaMethodBindingEmitter) javaEmitter);
+            } else {
+                newEmitter = new NativeSignatureJavaMethodBindingEmitter(javaEmitter, this);
+            }
+            newEmitters.add(newEmitter);
+        }
+        allEmitters.clear();
+        allEmitters.addAll(newEmitters);
+
+        // Detect whether we need to produce more or modify some of these emitters.
+        // Note that at this point we are assuming that generatePublicEmitters has
+        // been called with signatureOnly both true and false.
+        if (signatureContainsStrings(binding) && !haveEmitterWithBody(allEmitters)) {
+            // This basically handles glGetString but also any similar methods
+            NativeSignatureJavaMethodBindingEmitter javaEmitter = findEmitterWithWriter(allEmitters, writer);
+
+            // First, we need to clone this emitter to produce the native
+            // entry point
+            NativeSignatureJavaMethodBindingEmitter emitter = new NativeSignatureJavaMethodBindingEmitter(javaEmitter);
+            emitter.removeModifier(JavaMethodBindingEmitter.PUBLIC);
+            emitter.addModifier(JavaMethodBindingEmitter.PRIVATE);
+            emitter.setForImplementingMethodCall(true);
+            // Note: this is chosen so we don't have to change the logic in
+            // emitReturnVariableSetupAndCall which decides which variant
+            // (direct / indirect) to call
+            emitter.setForDirectBufferImplementation(true);
+            allEmitters.add(emitter);
+
+            // Now make the original emitter non-native and cause it to emit a body
+            javaEmitter.removeModifier(JavaMethodBindingEmitter.NATIVE);
+            javaEmitter.setEmitBody(true);
+        }
     }
-    JavaType retType = binding.getJavaReturnType();
-    if (retType.isString() || retType.isStringArray()) {
-      return true;
+
+    protected boolean signatureContainsStrings(MethodBinding binding) {
+        for (int i = 0; i < binding.getNumArguments(); i++) {
+            JavaType type = binding.getJavaArgumentType(i);
+            if (type.isString() || type.isStringArray()) {
+                return true;
+            }
+        }
+        JavaType retType = binding.getJavaReturnType();
+        if (retType.isString() || retType.isStringArray()) {
+            return true;
+        }
+        return false;
     }
-    return false;
-  }
-
-  protected boolean haveEmitterWithBody(List allEmitters) {
-    for (Iterator iter = allEmitters.iterator(); iter.hasNext(); ) {
-      JavaMethodBindingEmitter emitter = (JavaMethodBindingEmitter) iter.next();
-      if (!emitter.signatureOnly()) {
-        return true;
-      }
+
+    protected boolean haveEmitterWithBody(List<JavaMethodBindingEmitter> allEmitters) {
+        for (JavaMethodBindingEmitter emitter : allEmitters) {
+            if (!emitter.signatureOnly()) {
+                return true;
+            }
+        }
+        return false;
     }
-    return false;
-  }
-
-  protected NativeSignatureJavaMethodBindingEmitter findEmitterWithWriter(List allEmitters, PrintWriter writer) {
-    for (Iterator iter = allEmitters.iterator(); iter.hasNext(); ) {
-      NativeSignatureJavaMethodBindingEmitter emitter =
-        (NativeSignatureJavaMethodBindingEmitter) iter.next();
-      if (emitter.getDefaultOutput() == writer) {
-        return emitter;
-      }
+
+    protected NativeSignatureJavaMethodBindingEmitter findEmitterWithWriter(List<JavaMethodBindingEmitter> allEmitters, PrintWriter writer) {
+        for (JavaMethodBindingEmitter jemitter : allEmitters) {
+            NativeSignatureJavaMethodBindingEmitter emitter = (NativeSignatureJavaMethodBindingEmitter)jemitter;
+            if (emitter.getDefaultOutput() == writer) {
+                return emitter;
+            }
+        }
+        throw new RuntimeException("Unexpectedly failed to find an emitter with the given writer");
     }
-    throw new RuntimeException("Unexpectedly failed to find an emitter with the given writer");
-  }    
 }