diff options
Diffstat (limited to 'buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java')
| -rw-r--r-- | buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java b/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java deleted file mode 100644 index a8bd954f..00000000 --- a/buildtools/nasgen/src/jdk/nashorn/internal/tools/nasgen/MethodGenerator.java +++ /dev/null @@ -1,454 +0,0 @@ -/* - * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package jdk.nashorn.internal.tools.nasgen; - -import static jdk.internal.org.objectweb.asm.Opcodes.AALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.AASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.ACC_STATIC; -import static jdk.internal.org.objectweb.asm.Opcodes.ACONST_NULL; -import static jdk.internal.org.objectweb.asm.Opcodes.ALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.ANEWARRAY; -import static jdk.internal.org.objectweb.asm.Opcodes.ARETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.ASM4; -import static jdk.internal.org.objectweb.asm.Opcodes.ASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.BALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.BASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.BIPUSH; -import static jdk.internal.org.objectweb.asm.Opcodes.CALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.CASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.CHECKCAST; -import static jdk.internal.org.objectweb.asm.Opcodes.DALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.DASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.DCONST_0; -import static jdk.internal.org.objectweb.asm.Opcodes.DRETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.DUP; -import static jdk.internal.org.objectweb.asm.Opcodes.DUP2; -import static jdk.internal.org.objectweb.asm.Opcodes.FALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.FASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.FCONST_0; -import static jdk.internal.org.objectweb.asm.Opcodes.FRETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.GETFIELD; -import static jdk.internal.org.objectweb.asm.Opcodes.GETSTATIC; -import static jdk.internal.org.objectweb.asm.Opcodes.H_INVOKESTATIC; -import static jdk.internal.org.objectweb.asm.Opcodes.IALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.IASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_0; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_1; -import static jdk.internal.org.objectweb.asm.Opcodes.ILOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.INVOKEINTERFACE; -import static jdk.internal.org.objectweb.asm.Opcodes.INVOKESPECIAL; -import static jdk.internal.org.objectweb.asm.Opcodes.INVOKESTATIC; -import static jdk.internal.org.objectweb.asm.Opcodes.INVOKEVIRTUAL; -import static jdk.internal.org.objectweb.asm.Opcodes.IRETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.ISTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.LALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.LASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.LCONST_0; -import static jdk.internal.org.objectweb.asm.Opcodes.LRETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.NEW; -import static jdk.internal.org.objectweb.asm.Opcodes.POP; -import static jdk.internal.org.objectweb.asm.Opcodes.PUTFIELD; -import static jdk.internal.org.objectweb.asm.Opcodes.PUTSTATIC; -import static jdk.internal.org.objectweb.asm.Opcodes.RETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.SALOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.SASTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.SIPUSH; -import static jdk.internal.org.objectweb.asm.Opcodes.SWAP; -import static jdk.nashorn.internal.tools.nasgen.StringConstants.INIT; -import static jdk.nashorn.internal.tools.nasgen.StringConstants.SPECIALIZATION_INIT2; -import static jdk.nashorn.internal.tools.nasgen.StringConstants.SPECIALIZATION_INIT3; -import static jdk.nashorn.internal.tools.nasgen.StringConstants.SPECIALIZATION_TYPE; -import static jdk.nashorn.internal.tools.nasgen.StringConstants.TYPE_SPECIALIZATION; -import java.util.List; -import jdk.internal.org.objectweb.asm.Handle; -import jdk.internal.org.objectweb.asm.MethodVisitor; -import jdk.internal.org.objectweb.asm.Type; -import jdk.nashorn.internal.objects.annotations.SpecializedFunction.LinkLogic; - -/** - * Base class for all method generating classes. - * - */ -public class MethodGenerator extends MethodVisitor { - private final int access; - private final String name; - private final String descriptor; - private final Type returnType; - private final Type[] argumentTypes; - - static final Type EMPTY_LINK_LOGIC_TYPE = Type.getType(LinkLogic.getEmptyLinkLogicClass()); - - MethodGenerator(final MethodVisitor mv, final int access, final String name, final String descriptor) { - super(ASM4, mv); - this.access = access; - this.name = name; - this.descriptor = descriptor; - this.returnType = Type.getReturnType(descriptor); - this.argumentTypes = Type.getArgumentTypes(descriptor); - } - - int getAccess() { - return access; - } - - final String getName() { - return name; - } - - final String getDescriptor() { - return descriptor; - } - - final Type getReturnType() { - return returnType; - } - - final Type[] getArgumentTypes() { - return argumentTypes; - } - - /** - * Check whether access for this method is static - * @return true if static - */ - protected final boolean isStatic() { - return (getAccess() & ACC_STATIC) != 0; - } - - /** - * Check whether this method is a constructor - * @return true if constructor - */ - protected final boolean isConstructor() { - return "<init>".equals(name); - } - - void newObject(final String type) { - super.visitTypeInsn(NEW, type); - } - - void newObjectArray(final String type) { - super.visitTypeInsn(ANEWARRAY, type); - } - - void loadThis() { - if ((access & ACC_STATIC) != 0) { - throw new IllegalStateException("no 'this' inside static method"); - } - super.visitVarInsn(ALOAD, 0); - } - - void returnValue() { - super.visitInsn(returnType.getOpcode(IRETURN)); - } - - void returnVoid() { - super.visitInsn(RETURN); - } - - // load, store - void arrayLoad(final Type type) { - super.visitInsn(type.getOpcode(IALOAD)); - } - - void arrayLoad() { - super.visitInsn(AALOAD); - } - - void arrayStore(final Type type) { - super.visitInsn(type.getOpcode(IASTORE)); - } - - void arrayStore() { - super.visitInsn(AASTORE); - } - - void loadLiteral(final Object value) { - super.visitLdcInsn(value); - } - - void classLiteral(final String className) { - super.visitLdcInsn(className); - } - - void loadLocal(final Type type, final int index) { - super.visitVarInsn(type.getOpcode(ILOAD), index); - } - - void loadLocal(final int index) { - super.visitVarInsn(ALOAD, index); - } - - void storeLocal(final Type type, final int index) { - super.visitVarInsn(type.getOpcode(ISTORE), index); - } - - void storeLocal(final int index) { - super.visitVarInsn(ASTORE, index); - } - - void checkcast(final String type) { - super.visitTypeInsn(CHECKCAST, type); - } - - // push constants/literals - void pushNull() { - super.visitInsn(ACONST_NULL); - } - - void push(final int value) { - if (value >= -1 && value <= 5) { - super.visitInsn(ICONST_0 + value); - } else if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) { - super.visitIntInsn(BIPUSH, value); - } else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) { - super.visitIntInsn(SIPUSH, value); - } else { - super.visitLdcInsn(value); - } - } - - void loadClass(final String className) { - super.visitLdcInsn(Type.getObjectType(className)); - } - - void pop() { - super.visitInsn(POP); - } - - // various "dups" - void dup() { - super.visitInsn(DUP); - } - - void dup2() { - super.visitInsn(DUP2); - } - - void swap() { - super.visitInsn(SWAP); - } - - void dupArrayValue(final int arrayOpcode) { - switch (arrayOpcode) { - case IALOAD: case FALOAD: - case AALOAD: case BALOAD: - case CALOAD: case SALOAD: - case IASTORE: case FASTORE: - case AASTORE: case BASTORE: - case CASTORE: case SASTORE: - dup(); - break; - - case LALOAD: case DALOAD: - case LASTORE: case DASTORE: - dup2(); - break; - default: - throw new AssertionError("invalid dup"); - } - } - - void dupReturnValue(final int returnOpcode) { - switch (returnOpcode) { - case IRETURN: - case FRETURN: - case ARETURN: - super.visitInsn(DUP); - return; - case LRETURN: - case DRETURN: - super.visitInsn(DUP2); - return; - case RETURN: - return; - default: - throw new IllegalArgumentException("not return"); - } - } - - void dupValue(final Type type) { - switch (type.getSize()) { - case 1: - dup(); - break; - case 2: - dup2(); - break; - default: - throw new AssertionError("invalid dup"); - } - } - - void dupValue(final String desc) { - final int typeCode = desc.charAt(0); - switch (typeCode) { - case '[': - case 'L': - case 'Z': - case 'C': - case 'B': - case 'S': - case 'I': - super.visitInsn(DUP); - break; - case 'J': - case 'D': - super.visitInsn(DUP2); - break; - default: - throw new RuntimeException("invalid signature"); - } - } - - // push default value of given type desc - void defaultValue(final String desc) { - final int typeCode = desc.charAt(0); - switch (typeCode) { - case '[': - case 'L': - super.visitInsn(ACONST_NULL); - break; - case 'Z': - case 'C': - case 'B': - case 'S': - case 'I': - super.visitInsn(ICONST_0); - break; - case 'J': - super.visitInsn(LCONST_0); - break; - case 'F': - super.visitInsn(FCONST_0); - break; - case 'D': - super.visitInsn(DCONST_0); - break; - default: - throw new AssertionError("invalid desc " + desc); - } - } - - // invokes, field get/sets - void invokeInterface(final String owner, final String method, final String desc) { - super.visitMethodInsn(INVOKEINTERFACE, owner, method, desc, true); - } - - void invokeVirtual(final String owner, final String method, final String desc) { - super.visitMethodInsn(INVOKEVIRTUAL, owner, method, desc, false); - } - - void invokeSpecial(final String owner, final String method, final String desc) { - super.visitMethodInsn(INVOKESPECIAL, owner, method, desc, false); - } - - void invokeStatic(final String owner, final String method, final String desc) { - super.visitMethodInsn(INVOKESTATIC, owner, method, desc, false); - } - - void putStatic(final String owner, final String field, final String desc) { - super.visitFieldInsn(PUTSTATIC, owner, field, desc); - } - - void getStatic(final String owner, final String field, final String desc) { - super.visitFieldInsn(GETSTATIC, owner, field, desc); - } - - void putField(final String owner, final String field, final String desc) { - super.visitFieldInsn(PUTFIELD, owner, field, desc); - } - - void getField(final String owner, final String field, final String desc) { - super.visitFieldInsn(GETFIELD, owner, field, desc); - } - - private static boolean linkLogicIsEmpty(final Type type) { - assert EMPTY_LINK_LOGIC_TYPE != null; //type is ok for null if we are a @SpecializedFunction without any attribs - return EMPTY_LINK_LOGIC_TYPE.equals(type); - } - - void memberInfoArray(final String className, final List<MemberInfo> mis) { - if (mis.isEmpty()) { - pushNull(); - return; - } - - int pos = 0; - push(mis.size()); - newObjectArray(SPECIALIZATION_TYPE); - for (final MemberInfo mi : mis) { - dup(); - push(pos++); - visitTypeInsn(NEW, SPECIALIZATION_TYPE); - dup(); - visitLdcInsn(new Handle(H_INVOKESTATIC, className, mi.getJavaName(), mi.getJavaDesc())); - final Type linkLogicClass = mi.getLinkLogicClass(); - final boolean linkLogic = !linkLogicIsEmpty(linkLogicClass); - final String ctor = linkLogic ? SPECIALIZATION_INIT3 : SPECIALIZATION_INIT2; - if (linkLogic) { - visitLdcInsn(linkLogicClass); - } - visitInsn(mi.isOptimistic() ? ICONST_1 : ICONST_0); - visitMethodInsn(INVOKESPECIAL, SPECIALIZATION_TYPE, INIT, ctor, false); - arrayStore(TYPE_SPECIALIZATION); - } - } - - void computeMaxs() { - // These values are ignored as we create class writer - // with ClassWriter.COMPUTE_MAXS flag. - super.visitMaxs(Short.MAX_VALUE, Short.MAX_VALUE); - } - - // debugging support - print calls - void println(final String msg) { - super.visitFieldInsn(GETSTATIC, - "java/lang/System", - "out", - "Ljava/io/PrintStream;"); - super.visitLdcInsn(msg); - super.visitMethodInsn(INVOKEVIRTUAL, - "java/io/PrintStream", - "println", - "(Ljava/lang/String;)V", - false); - } - - // print the object on the top of the stack - void printObject() { - super.visitFieldInsn(GETSTATIC, - "java/lang/System", - "out", - "Ljava/io/PrintStream;"); - super.visitInsn(SWAP); - super.visitMethodInsn(INVOKEVIRTUAL, - "java/io/PrintStream", - "println", - "(Ljava/lang/Object;)V", - false); - } -} |