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Diffstat (limited to 'tools/external/asm/org/objectweb/asm/util/ASMifierAbstractVisitor.java')
| -rw-r--r-- | tools/external/asm/org/objectweb/asm/util/ASMifierAbstractVisitor.java | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/tools/external/asm/org/objectweb/asm/util/ASMifierAbstractVisitor.java b/tools/external/asm/org/objectweb/asm/util/ASMifierAbstractVisitor.java new file mode 100644 index 000000000..4ebc7fc09 --- /dev/null +++ b/tools/external/asm/org/objectweb/asm/util/ASMifierAbstractVisitor.java @@ -0,0 +1,226 @@ +/*** + * ASM: a very small and fast Java bytecode manipulation framework + * Copyright (c) 2000-2005 INRIA, France Telecom + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ +package org.objectweb.asm.util; + +import java.util.HashMap; + +import org.objectweb.asm.AnnotationVisitor; +import org.objectweb.asm.Attribute; +import org.objectweb.asm.Type; +import org.objectweb.asm.util.attrs.ASMifiable; + +/** + * An abstract ASMifier visitor. + * + * @author Eric Bruneton + */ +public class ASMifierAbstractVisitor extends AbstractVisitor { + + /** + * The name of the variable for this visitor in the produced code. + */ + protected String name; + + /** + * The label names. This map associates String values to Label keys. It is + * used only in ASMifierMethodVisitor. + */ + HashMap labelNames; + + /** + * Constructs a new {@link ASMifierAbstractVisitor}. + * + * @param name the name of the variable for this visitor in the produced + * code. + */ + protected ASMifierAbstractVisitor(final String name) { + this.name = name; + } + + /** + * Prints the ASM code that generates the given annotation. + * + * @param desc the class descriptor of the annotation class. + * @param visible <tt>true</tt> if the annotation is visible at runtime. + * @return a visitor to visit the annotation values. + */ + public AnnotationVisitor visitAnnotation( + final String desc, + final boolean visible) + { + buf.setLength(0); + buf.append("{\n") + .append("av0 = ") + .append(name) + .append(".visitAnnotation("); + appendConstant(desc); + buf.append(", ").append(visible).append(");\n"); + text.add(buf.toString()); + ASMifierAnnotationVisitor av = new ASMifierAnnotationVisitor(0); + text.add(av.getText()); + text.add("}\n"); + return av; + } + + /** + * Prints the ASM code that generates the given attribute. + * + * @param attr an attribute. + */ + public void visitAttribute(final Attribute attr) { + buf.setLength(0); + if (attr instanceof ASMifiable) { + buf.append("{\n"); + buf.append("// ATTRIBUTE\n"); + ((ASMifiable) attr).asmify(buf, "attr", labelNames); + buf.append(name).append(".visitAttribute(attr);\n"); + buf.append("}\n"); + } else { + buf.append("// WARNING! skipped a non standard attribute of type \""); + buf.append(attr.type).append("\"\n"); + } + text.add(buf.toString()); + } + + /** + * Prints the ASM code to end the visit. + */ + public void visitEnd() { + buf.setLength(0); + buf.append(name).append(".visitEnd();\n"); + text.add(buf.toString()); + } + + /** + * Appends a string representation of the given constant to the given + * buffer. + * + * @param cst an {@link Integer}, {@link Float}, {@link Long}, + * {@link Double} or {@link String} object. May be <tt>null</tt>. + */ + void appendConstant(final Object cst) { + appendConstant(buf, cst); + } + + /** + * Appends a string representation of the given constant to the given + * buffer. + * + * @param buf a string buffer. + * @param cst an {@link Integer}, {@link Float}, {@link Long}, + * {@link Double} or {@link String} object. May be <tt>null</tt>. + */ + static void appendConstant(final StringBuffer buf, final Object cst) { + if (cst == null) { + buf.append("null"); + } else if (cst instanceof String) { + appendString(buf, (String) cst); + } else if (cst instanceof Type) { + buf.append("Type.getType(\""); + buf.append(((Type) cst).getDescriptor()); + buf.append("\")"); + } else if (cst instanceof Byte) { + buf.append("new Byte((byte)").append(cst).append(")"); + } else if (cst instanceof Boolean) { + buf.append("new Boolean(").append(cst).append(")"); + } else if (cst instanceof Short) { + buf.append("new Short((short)").append(cst).append(")"); + } else if (cst instanceof Character) { + int c = ((Character) cst).charValue(); + buf.append("new Character((char)").append(c).append(")"); + } else if (cst instanceof Integer) { + buf.append("new Integer(").append(cst).append(")"); + } else if (cst instanceof Float) { + buf.append("new Float(\"").append(cst).append("\")"); + } else if (cst instanceof Long) { + buf.append("new Long(").append(cst).append("L)"); + } else if (cst instanceof Double) { + buf.append("new Double(\"").append(cst).append("\")"); + } else if (cst instanceof byte[]) { + byte[] v = (byte[]) cst; + buf.append("new byte[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append(v[i]); + } + buf.append("}"); + } else if (cst instanceof boolean[]) { + boolean[] v = (boolean[]) cst; + buf.append("new boolean[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append(v[i]); + } + buf.append("}"); + } else if (cst instanceof short[]) { + short[] v = (short[]) cst; + buf.append("new short[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append("(short)").append(v[i]); + } + buf.append("}"); + } else if (cst instanceof char[]) { + char[] v = (char[]) cst; + buf.append("new char[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",") + .append("(char)") + .append((int) v[i]); + } + buf.append("}"); + } else if (cst instanceof int[]) { + int[] v = (int[]) cst; + buf.append("new int[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append(v[i]); + } + buf.append("}"); + } else if (cst instanceof long[]) { + long[] v = (long[]) cst; + buf.append("new long[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append(v[i]).append("L"); + } + buf.append("}"); + } else if (cst instanceof float[]) { + float[] v = (float[]) cst; + buf.append("new float[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append(v[i]).append("f"); + } + buf.append("}"); + } else if (cst instanceof double[]) { + double[] v = (double[]) cst; + buf.append("new double[] {"); + for (int i = 0; i < v.length; i++) { + buf.append(i == 0 ? "" : ",").append(v[i]).append("d"); + } + buf.append("}"); + } + } +} |