diff options
Diffstat (limited to 'src/classes/com')
-rw-r--r-- | src/classes/com/sun/gluegen/JavaEmitter.java | 177 |
1 files changed, 96 insertions, 81 deletions
diff --git a/src/classes/com/sun/gluegen/JavaEmitter.java b/src/classes/com/sun/gluegen/JavaEmitter.java index c280e1de7..949dc6a51 100644 --- a/src/classes/com/sun/gluegen/JavaEmitter.java +++ b/src/classes/com/sun/gluegen/JavaEmitter.java @@ -667,21 +667,18 @@ public class JavaEmitter implements GlueEmitter { public void emitStruct(CompoundType structType, String alternateName) throws Exception { // Emit abstract base class delegating to 32-bit or 64-bit implementations - emitStructImpl(structType, alternateName, true, machDesc32, machDesc64); + emitStructImpl(structType, alternateName, machDesc32, machDesc64, true, false); // Emit concrete implementing class for each variant - if (machDesc32 != null) { - emitStructImpl(structType, alternateName, false, machDesc32, null); - } - if (machDesc64 != null) { - emitStructImpl(structType, alternateName, false, null, machDesc64); - } + emitStructImpl(structType, alternateName, machDesc32, machDesc64, false, true); + emitStructImpl(structType, alternateName, machDesc32, machDesc64, false, false); } public void emitStructImpl(CompoundType structType, String alternateName, - boolean isAbstractBaseClass, MachineDescription md32, - MachineDescription md64) throws Exception { + MachineDescription md64, + boolean doBaseClass, + boolean do32Bit) throws Exception { String name = structType.getName(); if (name == null && alternateName != null) { name = alternateName; @@ -697,28 +694,43 @@ public class JavaEmitter implements GlueEmitter { } Type containingCType = canonicalize(new PointerType(SizeThunk.POINTER, structType, 0)); - JavaType containingType = typeToJavaType(containingCType, false); + JavaType containingType = typeToJavaType(containingCType, false, machDesc); if (!containingType.isCompoundTypeWrapper()) { return; } String containingTypeName = containingType.getName(); - if ((md32 == null) && (md64 == null)) { - throw new RuntimeException("Must supply at least one MachineDescription to emitStructImpl"); + if ((md32 == null) || (md64 == null)) { + throw new RuntimeException("Must supply both 32- and 64-bit MachineDescriptions to emitStructImpl"); } String suffix = ""; - MachineDescription curMachDesc = null; - if (!isAbstractBaseClass) { - if ((md32 != null) && (md64 != null)) { - throw new RuntimeException("Must supply at most one MachineDescription to emitStructImpl when emitting concrete classes"); - } - if (md32 != null) { + // The "external" MachineDescription is the one used to determine + // the sizes of the primitive types seen in the public API. For + // example, if a C long is an element of a struct, it is the size + // of a Java int on a 32-bit machine but the size of a Java long + // on a 64-bit machine. To support both of these sizes with the + // same API, the abstract base class must take and return a Java + // long from the setter and getter for this field. However the + // implementation on a 32-bit platform must downcast this to an + // int and set only an int's worth of data in the struct. The + // "internal" MachineDescription is the one used to determine how + // much data to set in or get from the struct and exactly from + // where it comes. + // + // Note that the 64-bit MachineDescription is always used as the + // external MachineDescription. + + MachineDescription extMachDesc = md64; + MachineDescription intMachDesc = null; + + if (!doBaseClass) { + if (do32Bit) { + intMachDesc = md32; suffix = "32"; - curMachDesc = md32; } else { + intMachDesc = md64; suffix = "64"; - curMachDesc = md64; } } @@ -726,7 +738,7 @@ public class JavaEmitter implements GlueEmitter { // Native code for calls through function pointers gets emitted // into the abstract base class; Java code which accesses fields // gets emitted into the concrete classes - if (isAbstractBaseClass) { + if (doBaseClass) { for (int i = 0; i < structType.getNumFields(); i++) { if (structType.getField(i).getType().isFunctionPointer()) { needsNativeCode = true; @@ -781,8 +793,8 @@ public class JavaEmitter implements GlueEmitter { writer.println((String) iter.next()); } writer.println(); - writer.print((isAbstractBaseClass ? "public " : "") + (isAbstractBaseClass ? "abstract " : "") + "class " + containingTypeName + suffix + " "); - if (!isAbstractBaseClass) { + writer.print((doBaseClass ? "public " : "") + (doBaseClass ? "abstract " : "") + "class " + containingTypeName + suffix + " "); + if (!doBaseClass) { writer.print("extends " + containingTypeName + " "); } boolean firstIteration = true; @@ -796,48 +808,32 @@ public class JavaEmitter implements GlueEmitter { writer.print(" "); } writer.println("{"); - if (isAbstractBaseClass) { + if (doBaseClass) { writer.println(" StructAccessor accessor;"); writer.println(); } writer.println(" public static int size() {"); - if (isAbstractBaseClass) { + if (doBaseClass) { writer.println(" if (CPU.is32Bit()) {"); - if (md32 == null) { - writer.println(" throw new " + cfg.runtimeExceptionType() + "(\"32-bit architectures not supported with this autogenerated code\");"); - } else { - writer.println(" return " + containingTypeName + "32" + ".size();"); - } + writer.println(" return " + containingTypeName + "32" + ".size();"); writer.println(" } else {"); - if (md64 == null) { - writer.println(" throw new " + cfg.runtimeExceptionType() + "(\"64-bit architectures not supported with this autogenerated code\");"); - } else { - writer.println(" return " + containingTypeName + "64" + ".size();"); - } + writer.println(" return " + containingTypeName + "64" + ".size();"); writer.println(" }"); } else { - writer.println(" return " + structType.getSize(curMachDesc) + ";"); + writer.println(" return " + structType.getSize(intMachDesc) + ";"); } writer.println(" }"); writer.println(); - if (isAbstractBaseClass) { + if (doBaseClass) { writer.println(" public static " + containingTypeName + " create() {"); writer.println(" return create(BufferFactory.newDirectByteBuffer(size()));"); writer.println(" }"); writer.println(); writer.println(" public static " + containingTypeName + " create(ByteBuffer buf) {"); writer.println(" if (CPU.is32Bit()) {"); - if (md32 == null) { - writer.println(" throw new " + cfg.runtimeExceptionType() + "(\"32-bit architectures not supported with this autogenerated code\");"); - } else { - writer.println(" return new " + containingTypeName + "32(buf);"); - } + writer.println(" return new " + containingTypeName + "32(buf);"); writer.println(" } else {"); - if (md64 == null) { - writer.println(" throw new " + cfg.runtimeExceptionType() + "(\"64-bit architectures not supported with this autogenerated code\");"); - } else { - writer.println(" return new " + containingTypeName + "64(buf);"); - } + writer.println(" return new " + containingTypeName + "64(buf);"); writer.println(" }"); writer.println(" }"); writer.println(); @@ -859,7 +855,7 @@ public class JavaEmitter implements GlueEmitter { Type fieldType = field.getType(); if (!cfg.shouldIgnore(name + " " + field.getName())) { if (fieldType.isFunctionPointer()) { - if (isAbstractBaseClass) { + if (doBaseClass) { try { // Emit method call and associated native code FunctionType funcType = fieldType.asPointer().getTargetType().asFunction(); @@ -928,45 +924,63 @@ public class JavaEmitter implements GlueEmitter { } writer.println(); - writer.print(" public " + (isAbstractBaseClass ? "abstract " : "") + fieldType.getName() + " " + field.getName() + "()"); - if (isAbstractBaseClass) { + writer.print(" public " + (doBaseClass ? "abstract " : "") + fieldType.getName() + " " + field.getName() + "()"); + if (doBaseClass) { writer.println(";"); } else { writer.println(" {"); writer.println(" return " + fieldType.getName() + ".create(accessor.slice(" + - field.getOffset(machDesc) + ", " + fieldType.getSize(machDesc) + "));"); + field.getOffset(intMachDesc) + ", " + fieldType.getSize(intMachDesc) + "));"); writer.println(" }"); } // FIXME: add setter by autogenerating "copyTo" for all compound type wrappers } else if (fieldType.isArray()) { - if (!isAbstractBaseClass) { + if (!doBaseClass) { System.err.println("WARNING: Array fields (field \"" + field + "\" of type \"" + name + "\") not implemented yet"); } } else { - JavaType javaType = null; + JavaType internalJavaType = null; + JavaType externalJavaType = null; + try { - javaType = typeToJavaType(fieldType, false); + externalJavaType = typeToJavaType(fieldType, false, extMachDesc); + if (!doBaseClass) { + internalJavaType = typeToJavaType(fieldType, false, intMachDesc); + } } catch (Exception e) { System.err.println("Error occurred while creating accessor for field \"" + field.getName() + "\" in type \"" + name + "\""); e.printStackTrace(); throw(e); } - if (javaType.isPrimitive()) { + if (externalJavaType.isPrimitive()) { // Primitive type - String externalJavaTypeName = javaType.getName(); - String internalJavaTypeName = externalJavaTypeName; + String externalJavaTypeName = null; + String internalJavaTypeName = null; + externalJavaTypeName = externalJavaType.getName(); + if (!doBaseClass) { + internalJavaTypeName = internalJavaType.getName(); + } if (isOpaque(fieldType)) { - internalJavaTypeName = compatiblePrimitiveJavaTypeName(fieldType, javaType); + externalJavaTypeName = compatiblePrimitiveJavaTypeName(fieldType, externalJavaType, extMachDesc); + if (!doBaseClass) { + internalJavaTypeName = compatiblePrimitiveJavaTypeName(fieldType, internalJavaType, intMachDesc); + } + } + String capitalized = null; + if (!doBaseClass) { + capitalized = + "" + Character.toUpperCase(internalJavaTypeName.charAt(0)) + internalJavaTypeName.substring(1); + } + int slot = -1; + if (!doBaseClass) { + slot = slot(fieldType, (int) field.getOffset(intMachDesc), intMachDesc); } - String capitalized = - "" + Character.toUpperCase(internalJavaTypeName.charAt(0)) + internalJavaTypeName.substring(1); - int slot = slot(fieldType, (int) field.getOffset(machDesc)); // Setter writer.println(); - writer.print(" public " + (isAbstractBaseClass ? "abstract " : "") + containingTypeName + " " + field.getName() + "(" + externalJavaTypeName + " val)"); - if (isAbstractBaseClass) { + writer.print(" public " + (doBaseClass ? "abstract " : "") + containingTypeName + " " + field.getName() + "(" + externalJavaTypeName + " val)"); + if (doBaseClass) { writer.println(";"); } else { writer.println(" {"); @@ -980,8 +994,8 @@ public class JavaEmitter implements GlueEmitter { } writer.println(); // Getter - writer.print(" public " + (isAbstractBaseClass ? "abstract " : "") + externalJavaTypeName + " " + field.getName() + "()"); - if (isAbstractBaseClass) { + writer.print(" public " + (doBaseClass ? "abstract " : "") + externalJavaTypeName + " " + field.getName() + "()"); + if (doBaseClass) { writer.println(";"); } else { writer.println(" {"); @@ -1002,7 +1016,7 @@ public class JavaEmitter implements GlueEmitter { } } } - if (isAbstractBaseClass) { + if (doBaseClass) { emitCustomJavaCode(writer, containingTypeName); } writer.println("}"); @@ -1019,7 +1033,7 @@ public class JavaEmitter implements GlueEmitter { // Internals only below this point // - private JavaType typeToJavaType(Type cType, boolean outgoingArgument) { + private JavaType typeToJavaType(Type cType, boolean outgoingArgument, MachineDescription curMachDesc) { // Recognize JNIEnv* case up front PointerType opt = cType.asPointer(); if ((opt != null) && @@ -1035,13 +1049,13 @@ public class JavaEmitter implements GlueEmitter { } Type t = cType; if (t.isInt() || t.isEnum()) { - switch ((int) t.getSize(machDesc)) { + switch ((int) t.getSize(curMachDesc)) { case 1: return javaType(Byte.TYPE); case 2: return javaType(Short.TYPE); case 4: return javaType(Integer.TYPE); case 8: return javaType(Long.TYPE); default: throw new RuntimeException("Unknown integer type of size " + - t.getSize(machDesc) + " and name " + t.getName()); + t.getSize(curMachDesc) + " and name " + t.getName()); } } else if (t.isFloat()) { return javaType(Float.TYPE); @@ -1067,13 +1081,13 @@ public class JavaEmitter implements GlueEmitter { if (targetType.isVoid()) { return JavaType.createForVoidPointer(); } else if (targetType.isInt()) { - switch ((int) targetType.getSize(machDesc)) { + switch ((int) targetType.getSize(curMachDesc)) { case 1: return JavaType.createForCCharPointer(); case 2: return JavaType.createForCShortPointer(); case 4: return JavaType.createForCInt32Pointer(); case 8: return JavaType.createForCInt64Pointer(); default: throw new RuntimeException("Unknown integer array type of size " + - t.getSize(machDesc) + " and name " + t.getName()); + t.getSize(curMachDesc) + " and name " + t.getName()); } } else if (targetType.isFloat()) { return JavaType.createForCFloatPointer(); @@ -1121,13 +1135,13 @@ public class JavaEmitter implements GlueEmitter { if (bottomType.isPrimitive()) { if (bottomType.isInt()) { - switch ((int) bottomType.getSize(machDesc)) { + switch ((int) bottomType.getSize(curMachDesc)) { case 1: return javaType(ArrayTypes.byteBufferArrayClass); case 2: return javaType(ArrayTypes.shortBufferArrayClass); case 4: return javaType(ArrayTypes.intBufferArrayClass); case 8: return javaType(ArrayTypes.longBufferArrayClass); default: throw new RuntimeException("Unknown two-dimensional integer array type of element size " + - bottomType.getSize(machDesc) + " and name " + bottomType.getName()); + bottomType.getSize(curMachDesc) + " and name " + bottomType.getName()); } } else if (bottomType.isFloat()) { return javaType(ArrayTypes.floatBufferArrayClass); @@ -1176,13 +1190,13 @@ public class JavaEmitter implements GlueEmitter { (c == Long.TYPE)); } - private int slot(Type t, int byteOffset) { + private int slot(Type t, int byteOffset, MachineDescription curMachDesc) { if (t.isInt()) { - switch ((int) t.getSize(machDesc)) { + switch ((int) t.getSize(curMachDesc)) { case 1: case 2: case 4: - case 8: return byteOffset / (int) t.getSize(machDesc); + case 8: return byteOffset / (int) t.getSize(curMachDesc); default: throw new RuntimeException("Illegal type"); } } else if (t.isFloat()) { @@ -1190,7 +1204,7 @@ public class JavaEmitter implements GlueEmitter { } else if (t.isDouble()) { return byteOffset / 8; } else if (t.isPointer()) { - return byteOffset / machDesc.pointerSizeInBytes(); + return byteOffset / curMachDesc.pointerSizeInBytes(); } else { throw new RuntimeException("Illegal type " + t); } @@ -1220,13 +1234,14 @@ public class JavaEmitter implements GlueEmitter { } private String compatiblePrimitiveJavaTypeName(Type fieldType, - JavaType javaType) { + JavaType javaType, + MachineDescription curMachDesc) { Class c = javaType.getJavaClass(); if (!isIntegerType(c)) { // FIXME throw new RuntimeException("Can't yet handle opaque definitions of structs' fields to non-integer types (byte, short, int, long, etc.)"); } - switch ((int) fieldType.getSize(machDesc)) { + switch ((int) fieldType.getSize(curMachDesc)) { case 1: return "byte"; case 2: return "short"; case 4: return "int"; @@ -1506,7 +1521,7 @@ public class JavaEmitter implements GlueEmitter { } binding.setJavaReturnType(javaType(java.lang.String.class)); } else { - binding.setJavaReturnType(typeToJavaType(sym.getReturnType(), false)); + binding.setJavaReturnType(typeToJavaType(sym.getReturnType(), false, machDesc)); } // List of the indices of the arguments in this function that should be @@ -1515,7 +1530,7 @@ public class JavaEmitter implements GlueEmitter { for (int i = 0; i < sym.getNumArguments(); i++) { Type cArgType = sym.getArgumentType(i); - JavaType mappedType = typeToJavaType(cArgType, true); + JavaType mappedType = typeToJavaType(cArgType, true, machDesc); //System.out.println("C arg type -> \"" + cArgType + "\"" ); //System.out.println(" Java -> \"" + mappedType + "\"" ); |