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Posted to commits@tapestry.apache.org by th...@apache.org on 2018/11/29 00:34:20 UTC
[33/46] tapestry-5 git commit: TAP5-2588: upgrading from ASM 6 to 7
for Java 9+ support
http://git-wip-us.apache.org/repos/asf/tapestry-5/blob/1c71aec7/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/Type.java
----------------------------------------------------------------------
diff --git a/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/Type.java b/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/Type.java
old mode 100644
new mode 100755
index 3455196..2174939
--- a/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/Type.java
+++ b/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/Type.java
@@ -1,905 +1,891 @@
-/***
- * ASM: a very small and fast Java bytecode manipulation framework
- * Copyright (c) 2000-2011 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.
- */
+// ASM: a very small and fast Java bytecode manipulation framework
+// Copyright (c) 2000-2011 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.apache.tapestry5.internal.plastic.asm;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
/**
- * A Java field or method type. This class can be used to make it easier to
- * manipulate type and method descriptors.
- *
+ * A Java field or method type. This class can be used to make it easier to manipulate type and
+ * method descriptors.
+ *
* @author Eric Bruneton
* @author Chris Nokleberg
*/
-public class Type {
-
- /**
- * The sort of the <tt>void</tt> type. See {@link #getSort getSort}.
- */
- public static final int VOID = 0;
-
- /**
- * The sort of the <tt>boolean</tt> type. See {@link #getSort getSort}.
- */
- public static final int BOOLEAN = 1;
-
- /**
- * The sort of the <tt>char</tt> type. See {@link #getSort getSort}.
- */
- public static final int CHAR = 2;
-
- /**
- * The sort of the <tt>byte</tt> type. See {@link #getSort getSort}.
- */
- public static final int BYTE = 3;
-
- /**
- * The sort of the <tt>short</tt> type. See {@link #getSort getSort}.
- */
- public static final int SHORT = 4;
-
- /**
- * The sort of the <tt>int</tt> type. See {@link #getSort getSort}.
- */
- public static final int INT = 5;
-
- /**
- * The sort of the <tt>float</tt> type. See {@link #getSort getSort}.
- */
- public static final int FLOAT = 6;
-
- /**
- * The sort of the <tt>long</tt> type. See {@link #getSort getSort}.
- */
- public static final int LONG = 7;
-
- /**
- * The sort of the <tt>double</tt> type. See {@link #getSort getSort}.
- */
- public static final int DOUBLE = 8;
-
- /**
- * The sort of array reference types. See {@link #getSort getSort}.
- */
- public static final int ARRAY = 9;
-
- /**
- * The sort of object reference types. See {@link #getSort getSort}.
- */
- public static final int OBJECT = 10;
-
- /**
- * The sort of method types. See {@link #getSort getSort}.
- */
- public static final int METHOD = 11;
-
- /**
- * The <tt>void</tt> type.
- */
- public static final Type VOID_TYPE = new Type(VOID, null, ('V' << 24)
- | (5 << 16) | (0 << 8) | 0, 1);
-
- /**
- * The <tt>boolean</tt> type.
- */
- public static final Type BOOLEAN_TYPE = new Type(BOOLEAN, null, ('Z' << 24)
- | (0 << 16) | (5 << 8) | 1, 1);
-
- /**
- * The <tt>char</tt> type.
- */
- public static final Type CHAR_TYPE = new Type(CHAR, null, ('C' << 24)
- | (0 << 16) | (6 << 8) | 1, 1);
-
- /**
- * The <tt>byte</tt> type.
- */
- public static final Type BYTE_TYPE = new Type(BYTE, null, ('B' << 24)
- | (0 << 16) | (5 << 8) | 1, 1);
-
- /**
- * The <tt>short</tt> type.
- */
- public static final Type SHORT_TYPE = new Type(SHORT, null, ('S' << 24)
- | (0 << 16) | (7 << 8) | 1, 1);
-
- /**
- * The <tt>int</tt> type.
- */
- public static final Type INT_TYPE = new Type(INT, null, ('I' << 24)
- | (0 << 16) | (0 << 8) | 1, 1);
-
- /**
- * The <tt>float</tt> type.
- */
- public static final Type FLOAT_TYPE = new Type(FLOAT, null, ('F' << 24)
- | (2 << 16) | (2 << 8) | 1, 1);
-
- /**
- * The <tt>long</tt> type.
- */
- public static final Type LONG_TYPE = new Type(LONG, null, ('J' << 24)
- | (1 << 16) | (1 << 8) | 2, 1);
-
- /**
- * The <tt>double</tt> type.
- */
- public static final Type DOUBLE_TYPE = new Type(DOUBLE, null, ('D' << 24)
- | (3 << 16) | (3 << 8) | 2, 1);
-
- // ------------------------------------------------------------------------
- // Fields
- // ------------------------------------------------------------------------
-
- /**
- * The sort of this Java type.
- */
- private final int sort;
-
- /**
- * A buffer containing the internal name of this Java type. This field is
- * only used for reference types.
- */
- private final char[] buf;
-
- /**
- * The offset of the internal name of this Java type in {@link #buf buf} or,
- * for primitive types, the size, descriptor and getOpcode offsets for this
- * type (byte 0 contains the size, byte 1 the descriptor, byte 2 the offset
- * for IALOAD or IASTORE, byte 3 the offset for all other instructions).
- */
- private final int off;
-
- /**
- * The length of the internal name of this Java type.
- */
- private final int len;
-
- // ------------------------------------------------------------------------
- // Constructors
- // ------------------------------------------------------------------------
-
- /**
- * Constructs a reference type.
- *
- * @param sort
- * the sort of the reference type to be constructed.
- * @param buf
- * a buffer containing the descriptor of the previous type.
- * @param off
- * the offset of this descriptor in the previous buffer.
- * @param len
- * the length of this descriptor.
- */
- private Type(final int sort, final char[] buf, final int off, final int len) {
- this.sort = sort;
- this.buf = buf;
- this.off = off;
- this.len = len;
- }
+public final class Type {
- /**
- * Returns the Java type corresponding to the given type descriptor.
- *
- * @param typeDescriptor
- * a field or method type descriptor.
- * @return the Java type corresponding to the given type descriptor.
- */
- public static Type getType(final String typeDescriptor) {
- return getType(typeDescriptor.toCharArray(), 0);
- }
+ /** The sort of the {@code void} type. See {@link #getSort}. */
+ public static final int VOID = 0;
- /**
- * Returns the Java type corresponding to the given internal name.
- *
- * @param internalName
- * an internal name.
- * @return the Java type corresponding to the given internal name.
- */
- public static Type getObjectType(final String internalName) {
- char[] buf = internalName.toCharArray();
- return new Type(buf[0] == '[' ? ARRAY : OBJECT, buf, 0, buf.length);
- }
+ /** The sort of the {@code boolean} type. See {@link #getSort}. */
+ public static final int BOOLEAN = 1;
- /**
- * Returns the Java type corresponding to the given method descriptor.
- * Equivalent to <code>Type.getType(methodDescriptor)</code>.
- *
- * @param methodDescriptor
- * a method descriptor.
- * @return the Java type corresponding to the given method descriptor.
- */
- public static Type getMethodType(final String methodDescriptor) {
- return getType(methodDescriptor.toCharArray(), 0);
- }
-
- /**
- * Returns the Java method type corresponding to the given argument and
- * return types.
- *
- * @param returnType
- * the return type of the method.
- * @param argumentTypes
- * the argument types of the method.
- * @return the Java type corresponding to the given argument and return
- * types.
- */
- public static Type getMethodType(final Type returnType,
- final Type... argumentTypes) {
- return getType(getMethodDescriptor(returnType, argumentTypes));
- }
+ /** The sort of the {@code char} type. See {@link #getSort}. */
+ public static final int CHAR = 2;
- /**
- * Returns the Java type corresponding to the given class.
- *
- * @param c
- * a class.
- * @return the Java type corresponding to the given class.
- */
- public static Type getType(final Class<?> c) {
- if (c.isPrimitive()) {
- if (c == Integer.TYPE) {
- return INT_TYPE;
- } else if (c == Void.TYPE) {
- return VOID_TYPE;
- } else if (c == Boolean.TYPE) {
- return BOOLEAN_TYPE;
- } else if (c == Byte.TYPE) {
- return BYTE_TYPE;
- } else if (c == Character.TYPE) {
- return CHAR_TYPE;
- } else if (c == Short.TYPE) {
- return SHORT_TYPE;
- } else if (c == Double.TYPE) {
- return DOUBLE_TYPE;
- } else if (c == Float.TYPE) {
- return FLOAT_TYPE;
- } else /* if (c == Long.TYPE) */{
- return LONG_TYPE;
- }
- } else {
- return getType(getDescriptor(c));
- }
- }
+ /** The sort of the {@code byte} type. See {@link #getSort}. */
+ public static final int BYTE = 3;
- /**
- * Returns the Java method type corresponding to the given constructor.
- *
- * @param c
- * a {@link Constructor Constructor} object.
- * @return the Java method type corresponding to the given constructor.
- */
- public static Type getType(final Constructor<?> c) {
- return getType(getConstructorDescriptor(c));
- }
+ /** The sort of the {@code short} type. See {@link #getSort}. */
+ public static final int SHORT = 4;
- /**
- * Returns the Java method type corresponding to the given method.
- *
- * @param m
- * a {@link Method Method} object.
- * @return the Java method type corresponding to the given method.
- */
- public static Type getType(final Method m) {
- return getType(getMethodDescriptor(m));
- }
-
- /**
- * Returns the Java types corresponding to the argument types of the given
- * method descriptor.
- *
- * @param methodDescriptor
- * a method descriptor.
- * @return the Java types corresponding to the argument types of the given
- * method descriptor.
- */
- public static Type[] getArgumentTypes(final String methodDescriptor) {
- char[] buf = methodDescriptor.toCharArray();
- int off = 1;
- int size = 0;
- while (true) {
- char car = buf[off++];
- if (car == ')') {
- break;
- } else if (car == 'L') {
- while (buf[off++] != ';') {
- }
- ++size;
- } else if (car != '[') {
- ++size;
- }
- }
- Type[] args = new Type[size];
- off = 1;
- size = 0;
- while (buf[off] != ')') {
- args[size] = getType(buf, off);
- off += args[size].len + (args[size].sort == OBJECT ? 2 : 0);
- size += 1;
- }
- return args;
- }
-
- /**
- * Returns the Java types corresponding to the argument types of the given
- * method.
- *
- * @param method
- * a method.
- * @return the Java types corresponding to the argument types of the given
- * method.
- */
- public static Type[] getArgumentTypes(final Method method) {
- Class<?>[] classes = method.getParameterTypes();
- Type[] types = new Type[classes.length];
- for (int i = classes.length - 1; i >= 0; --i) {
- types[i] = getType(classes[i]);
+ /** The sort of the {@code int} type. See {@link #getSort}. */
+ public static final int INT = 5;
+
+ /** The sort of the {@code float} type. See {@link #getSort}. */
+ public static final int FLOAT = 6;
+
+ /** The sort of the {@code long} type. See {@link #getSort}. */
+ public static final int LONG = 7;
+
+ /** The sort of the {@code double} type. See {@link #getSort}. */
+ public static final int DOUBLE = 8;
+
+ /** The sort of array reference types. See {@link #getSort}. */
+ public static final int ARRAY = 9;
+
+ /** The sort of object reference types. See {@link #getSort}. */
+ public static final int OBJECT = 10;
+
+ /** The sort of method types. See {@link #getSort}. */
+ public static final int METHOD = 11;
+
+ /** The (private) sort of object reference types represented with an internal name. */
+ private static final int INTERNAL = 12;
+
+ /** The descriptors of the primitive types. */
+ private static final String PRIMITIVE_DESCRIPTORS = "VZCBSIFJD";
+
+ /** The {@code void} type. */
+ public static final Type VOID_TYPE = new Type(VOID, PRIMITIVE_DESCRIPTORS, VOID, VOID + 1);
+
+ /** The {@code boolean} type. */
+ public static final Type BOOLEAN_TYPE =
+ new Type(BOOLEAN, PRIMITIVE_DESCRIPTORS, BOOLEAN, BOOLEAN + 1);
+
+ /** The {@code char} type. */
+ public static final Type CHAR_TYPE = new Type(CHAR, PRIMITIVE_DESCRIPTORS, CHAR, CHAR + 1);
+
+ /** The {@code byte} type. */
+ public static final Type BYTE_TYPE = new Type(BYTE, PRIMITIVE_DESCRIPTORS, BYTE, BYTE + 1);
+
+ /** The {@code short} type. */
+ public static final Type SHORT_TYPE = new Type(SHORT, PRIMITIVE_DESCRIPTORS, SHORT, SHORT + 1);
+
+ /** The {@code int} type. */
+ public static final Type INT_TYPE = new Type(INT, PRIMITIVE_DESCRIPTORS, INT, INT + 1);
+
+ /** The {@code float} type. */
+ public static final Type FLOAT_TYPE = new Type(FLOAT, PRIMITIVE_DESCRIPTORS, FLOAT, FLOAT + 1);
+
+ /** The {@code long} type. */
+ public static final Type LONG_TYPE = new Type(LONG, PRIMITIVE_DESCRIPTORS, LONG, LONG + 1);
+
+ /** The {@code double} type. */
+ public static final Type DOUBLE_TYPE =
+ new Type(DOUBLE, PRIMITIVE_DESCRIPTORS, DOUBLE, DOUBLE + 1);
+
+ // -----------------------------------------------------------------------------------------------
+ // Fields
+ // -----------------------------------------------------------------------------------------------
+
+ /**
+ * The sort of this type. Either {@link #VOID}, {@link #BOOLEAN}, {@link #CHAR}, {@link #BYTE},
+ * {@link #SHORT}, {@link #INT}, {@link #FLOAT}, {@link #LONG}, {@link #DOUBLE}, {@link #ARRAY},
+ * {@link #OBJECT}, {@link #METHOD} or {@link #INTERNAL}.
+ */
+ private final int sort;
+
+ /**
+ * A buffer containing the value of this field or method type. This value is an internal name for
+ * {@link #OBJECT} and {@link #INTERNAL} types, and a field or method descriptor in the other
+ * cases.
+ *
+ * <p>For {@link #OBJECT} types, this field also contains the descriptor: the characters in
+ * [{@link #valueBegin},{@link #valueEnd}) contain the internal name, and those in [{@link
+ * #valueBegin} - 1, {@link #valueEnd} + 1) contain the descriptor.
+ */
+ private final String valueBuffer;
+
+ /**
+ * The beginning index, inclusive, of the value of this Java field or method type in {@link
+ * #valueBuffer}. This value is an internal name for {@link #OBJECT} and {@link #INTERNAL} types,
+ * and a field or method descriptor in the other cases.
+ */
+ private final int valueBegin;
+
+ /**
+ * The end index, exclusive, of the value of this Java field or method type in {@link
+ * #valueBuffer}. This value is an internal name for {@link #OBJECT} and {@link #INTERNAL} types,
+ * and a field or method descriptor in the other cases.
+ */
+ private final int valueEnd;
+
+ /**
+ * Constructs a reference type.
+ *
+ * @param sort the sort of this type, see {@link #sort}.
+ * @param valueBuffer a buffer containing the value of this field or method type.
+ * @param valueBegin the beginning index, inclusive, of the value of this field or method type in
+ * valueBuffer.
+ * @param valueEnd the end index, exclusive, of the value of this field or method type in
+ * valueBuffer.
+ */
+ private Type(final int sort, final String valueBuffer, final int valueBegin, final int valueEnd) {
+ this.sort = sort;
+ this.valueBuffer = valueBuffer;
+ this.valueBegin = valueBegin;
+ this.valueEnd = valueEnd;
+ }
+
+ // -----------------------------------------------------------------------------------------------
+ // Methods to get Type(s) from a descriptor, a reflected Method or Constructor, other types, etc.
+ // -----------------------------------------------------------------------------------------------
+
+ /**
+ * Returns the {@link Type} corresponding to the given type descriptor.
+ *
+ * @param typeDescriptor a field or method type descriptor.
+ * @return the {@link Type} corresponding to the given type descriptor.
+ */
+ public static Type getType(final String typeDescriptor) {
+ return getTypeInternal(typeDescriptor, 0, typeDescriptor.length());
+ }
+
+ /**
+ * Returns the {@link Type} corresponding to the given class.
+ *
+ * @param clazz a class.
+ * @return the {@link Type} corresponding to the given class.
+ */
+ public static Type getType(final Class<?> clazz) {
+ if (clazz.isPrimitive()) {
+ if (clazz == Integer.TYPE) {
+ return INT_TYPE;
+ } else if (clazz == Void.TYPE) {
+ return VOID_TYPE;
+ } else if (clazz == Boolean.TYPE) {
+ return BOOLEAN_TYPE;
+ } else if (clazz == Byte.TYPE) {
+ return BYTE_TYPE;
+ } else if (clazz == Character.TYPE) {
+ return CHAR_TYPE;
+ } else if (clazz == Short.TYPE) {
+ return SHORT_TYPE;
+ } else if (clazz == Double.TYPE) {
+ return DOUBLE_TYPE;
+ } else if (clazz == Float.TYPE) {
+ return FLOAT_TYPE;
+ } else if (clazz == Long.TYPE) {
+ return LONG_TYPE;
+ } else {
+ throw new AssertionError();
+ }
+ } else {
+ return getType(getDescriptor(clazz));
+ }
+ }
+
+ /**
+ * Returns the method {@link Type} corresponding to the given constructor.
+ *
+ * @param constructor a {@link Constructor} object.
+ * @return the method {@link Type} corresponding to the given constructor.
+ */
+ public static Type getType(final Constructor<?> constructor) {
+ return getType(getConstructorDescriptor(constructor));
+ }
+
+ /**
+ * Returns the method {@link Type} corresponding to the given method.
+ *
+ * @param method a {@link Method} object.
+ * @return the method {@link Type} corresponding to the given method.
+ */
+ public static Type getType(final Method method) {
+ return getType(getMethodDescriptor(method));
+ }
+
+ /**
+ * Returns the type of the elements of this array type. This method should only be used for an
+ * array type.
+ *
+ * @return Returns the type of the elements of this array type.
+ */
+ public Type getElementType() {
+ final int numDimensions = getDimensions();
+ return getTypeInternal(valueBuffer, valueBegin + numDimensions, valueEnd);
+ }
+
+ /**
+ * Returns the {@link Type} corresponding to the given internal name.
+ *
+ * @param internalName an internal name.
+ * @return the {@link Type} corresponding to the given internal name.
+ */
+ public static Type getObjectType(final String internalName) {
+ return new Type(
+ internalName.charAt(0) == '[' ? ARRAY : INTERNAL, internalName, 0, internalName.length());
+ }
+
+ /**
+ * Returns the {@link Type} corresponding to the given method descriptor. Equivalent to <code>
+ * Type.getType(methodDescriptor)</code>.
+ *
+ * @param methodDescriptor a method descriptor.
+ * @return the {@link Type} corresponding to the given method descriptor.
+ */
+ public static Type getMethodType(final String methodDescriptor) {
+ return new Type(METHOD, methodDescriptor, 0, methodDescriptor.length());
+ }
+
+ /**
+ * Returns the method {@link Type} corresponding to the given argument and return types.
+ *
+ * @param returnType the return type of the method.
+ * @param argumentTypes the argument types of the method.
+ * @return the method {@link Type} corresponding to the given argument and return types.
+ */
+ public static Type getMethodType(final Type returnType, final Type... argumentTypes) {
+ return getType(getMethodDescriptor(returnType, argumentTypes));
+ }
+
+ /**
+ * Returns the argument types of methods of this type. This method should only be used for method
+ * types.
+ *
+ * @return the argument types of methods of this type.
+ */
+ public Type[] getArgumentTypes() {
+ return getArgumentTypes(getDescriptor());
+ }
+
+ /**
+ * Returns the {@link Type} values corresponding to the argument types of the given method
+ * descriptor.
+ *
+ * @param methodDescriptor a method descriptor.
+ * @return the {@link Type} values corresponding to the argument types of the given method
+ * descriptor.
+ */
+ public static Type[] getArgumentTypes(final String methodDescriptor) {
+ // First step: compute the number of argument types in methodDescriptor.
+ int numArgumentTypes = 0;
+ // Skip the first character, which is always a '('.
+ int currentOffset = 1;
+ // Parse the argument types, one at a each loop iteration.
+ while (methodDescriptor.charAt(currentOffset) != ')') {
+ while (methodDescriptor.charAt(currentOffset) == '[') {
+ currentOffset++;
+ }
+ if (methodDescriptor.charAt(currentOffset++) == 'L') {
+ // Skip the argument descriptor content.
+ currentOffset = methodDescriptor.indexOf(';', currentOffset) + 1;
+ }
+ ++numArgumentTypes;
+ }
+
+ // Second step: create a Type instance for each argument type.
+ Type[] argumentTypes = new Type[numArgumentTypes];
+ // Skip the first character, which is always a '('.
+ currentOffset = 1;
+ // Parse and create the argument types, one at each loop iteration.
+ int currentArgumentTypeIndex = 0;
+ while (methodDescriptor.charAt(currentOffset) != ')') {
+ final int currentArgumentTypeOffset = currentOffset;
+ while (methodDescriptor.charAt(currentOffset) == '[') {
+ currentOffset++;
+ }
+ if (methodDescriptor.charAt(currentOffset++) == 'L') {
+ // Skip the argument descriptor content.
+ currentOffset = methodDescriptor.indexOf(';', currentOffset) + 1;
+ }
+ argumentTypes[currentArgumentTypeIndex++] =
+ getTypeInternal(methodDescriptor, currentArgumentTypeOffset, currentOffset);
+ }
+ return argumentTypes;
+ }
+
+ /**
+ * Returns the {@link Type} values corresponding to the argument types of the given method.
+ *
+ * @param method a method.
+ * @return the {@link Type} values corresponding to the argument types of the given method.
+ */
+ public static Type[] getArgumentTypes(final Method method) {
+ Class<?>[] classes = method.getParameterTypes();
+ Type[] types = new Type[classes.length];
+ for (int i = classes.length - 1; i >= 0; --i) {
+ types[i] = getType(classes[i]);
+ }
+ return types;
+ }
+
+ /**
+ * Returns the return type of methods of this type. This method should only be used for method
+ * types.
+ *
+ * @return the return type of methods of this type.
+ */
+ public Type getReturnType() {
+ return getReturnType(getDescriptor());
+ }
+
+ /**
+ * Returns the {@link Type} corresponding to the return type of the given method descriptor.
+ *
+ * @param methodDescriptor a method descriptor.
+ * @return the {@link Type} corresponding to the return type of the given method descriptor.
+ */
+ public static Type getReturnType(final String methodDescriptor) {
+ // Skip the first character, which is always a '('.
+ int currentOffset = 1;
+ // Skip the argument types, one at a each loop iteration.
+ while (methodDescriptor.charAt(currentOffset) != ')') {
+ while (methodDescriptor.charAt(currentOffset) == '[') {
+ currentOffset++;
+ }
+ if (methodDescriptor.charAt(currentOffset++) == 'L') {
+ // Skip the argument descriptor content.
+ currentOffset = methodDescriptor.indexOf(';', currentOffset) + 1;
+ }
+ }
+ return getTypeInternal(methodDescriptor, currentOffset + 1, methodDescriptor.length());
+ }
+
+ /**
+ * Returns the {@link Type} corresponding to the return type of the given method.
+ *
+ * @param method a method.
+ * @return the {@link Type} corresponding to the return type of the given method.
+ */
+ public static Type getReturnType(final Method method) {
+ return getType(method.getReturnType());
+ }
+
+ /**
+ * Returns the {@link Type} corresponding to the given field or method descriptor.
+ *
+ * @param descriptorBuffer a buffer containing the field or method descriptor.
+ * @param descriptorBegin the beginning index, inclusive, of the field or method descriptor in
+ * descriptorBuffer.
+ * @param descriptorEnd the end index, exclusive, of the field or method descriptor in
+ * descriptorBuffer.
+ * @return the {@link Type} corresponding to the given type descriptor.
+ */
+ private static Type getTypeInternal(
+ final String descriptorBuffer, final int descriptorBegin, final int descriptorEnd) {
+ switch (descriptorBuffer.charAt(descriptorBegin)) {
+ case 'V':
+ return VOID_TYPE;
+ case 'Z':
+ return BOOLEAN_TYPE;
+ case 'C':
+ return CHAR_TYPE;
+ case 'B':
+ return BYTE_TYPE;
+ case 'S':
+ return SHORT_TYPE;
+ case 'I':
+ return INT_TYPE;
+ case 'F':
+ return FLOAT_TYPE;
+ case 'J':
+ return LONG_TYPE;
+ case 'D':
+ return DOUBLE_TYPE;
+ case '[':
+ return new Type(ARRAY, descriptorBuffer, descriptorBegin, descriptorEnd);
+ case 'L':
+ return new Type(OBJECT, descriptorBuffer, descriptorBegin + 1, descriptorEnd - 1);
+ case '(':
+ return new Type(METHOD, descriptorBuffer, descriptorBegin, descriptorEnd);
+ default:
+ throw new IllegalArgumentException();
+ }
+ }
+
+ // -----------------------------------------------------------------------------------------------
+ // Methods to get class names, internal names or descriptors.
+ // -----------------------------------------------------------------------------------------------
+
+ /**
+ * Returns the binary name of the class corresponding to this type. This method must not be used
+ * on method types.
+ *
+ * @return the binary name of the class corresponding to this type.
+ */
+ public String getClassName() {
+ switch (sort) {
+ case VOID:
+ return "void";
+ case BOOLEAN:
+ return "boolean";
+ case CHAR:
+ return "char";
+ case BYTE:
+ return "byte";
+ case SHORT:
+ return "short";
+ case INT:
+ return "int";
+ case FLOAT:
+ return "float";
+ case LONG:
+ return "long";
+ case DOUBLE:
+ return "double";
+ case ARRAY:
+ StringBuilder stringBuilder = new StringBuilder(getElementType().getClassName());
+ for (int i = getDimensions(); i > 0; --i) {
+ stringBuilder.append("[]");
}
- return types;
- }
-
- /**
- * Returns the Java type corresponding to the return type of the given
- * method descriptor.
- *
- * @param methodDescriptor
- * a method descriptor.
- * @return the Java type corresponding to the return type of the given
- * method descriptor.
- */
- public static Type getReturnType(final String methodDescriptor) {
- char[] buf = methodDescriptor.toCharArray();
- int off = 1;
- while (true) {
- char car = buf[off++];
- if (car == ')') {
- return getType(buf, off);
- } else if (car == 'L') {
- while (buf[off++] != ';') {
- }
- }
+ return stringBuilder.toString();
+ case OBJECT:
+ case INTERNAL:
+ return valueBuffer.substring(valueBegin, valueEnd).replace('/', '.');
+ default:
+ throw new AssertionError();
+ }
+ }
+
+ /**
+ * Returns the internal name of the class corresponding to this object or array type. The internal
+ * name of a class is its fully qualified name (as returned by Class.getName(), where '.' are
+ * replaced by '/'). This method should only be used for an object or array type.
+ *
+ * @return the internal name of the class corresponding to this object type.
+ */
+ public String getInternalName() {
+ return valueBuffer.substring(valueBegin, valueEnd);
+ }
+
+ /**
+ * Returns the internal name of the given class. The internal name of a class is its fully
+ * qualified name, as returned by Class.getName(), where '.' are replaced by '/'.
+ *
+ * @param clazz an object or array class.
+ * @return the internal name of the given class.
+ */
+ public static String getInternalName(final Class<?> clazz) {
+ return clazz.getName().replace('.', '/');
+ }
+
+ /**
+ * Returns the descriptor corresponding to this type.
+ *
+ * @return the descriptor corresponding to this type.
+ */
+ public String getDescriptor() {
+ if (sort == OBJECT) {
+ return valueBuffer.substring(valueBegin - 1, valueEnd + 1);
+ } else if (sort == INTERNAL) {
+ return new StringBuilder()
+ .append('L')
+ .append(valueBuffer, valueBegin, valueEnd)
+ .append(';')
+ .toString();
+ } else {
+ return valueBuffer.substring(valueBegin, valueEnd);
+ }
+ }
+
+ /**
+ * Returns the descriptor corresponding to the given class.
+ *
+ * @param clazz an object class, a primitive class or an array class.
+ * @return the descriptor corresponding to the given class.
+ */
+ public static String getDescriptor(final Class<?> clazz) {
+ StringBuilder stringBuilder = new StringBuilder();
+ appendDescriptor(clazz, stringBuilder);
+ return stringBuilder.toString();
+ }
+
+ /**
+ * Returns the descriptor corresponding to the given constructor.
+ *
+ * @param constructor a {@link Constructor} object.
+ * @return the descriptor of the given constructor.
+ */
+ public static String getConstructorDescriptor(final Constructor<?> constructor) {
+ StringBuilder stringBuilder = new StringBuilder();
+ stringBuilder.append('(');
+ Class<?>[] parameters = constructor.getParameterTypes();
+ for (Class<?> parameter : parameters) {
+ appendDescriptor(parameter, stringBuilder);
+ }
+ return stringBuilder.append(")V").toString();
+ }
+
+ /**
+ * Returns the descriptor corresponding to the given argument and return types.
+ *
+ * @param returnType the return type of the method.
+ * @param argumentTypes the argument types of the method.
+ * @return the descriptor corresponding to the given argument and return types.
+ */
+ public static String getMethodDescriptor(final Type returnType, final Type... argumentTypes) {
+ StringBuilder stringBuilder = new StringBuilder();
+ stringBuilder.append('(');
+ for (Type argumentType : argumentTypes) {
+ argumentType.appendDescriptor(stringBuilder);
+ }
+ stringBuilder.append(')');
+ returnType.appendDescriptor(stringBuilder);
+ return stringBuilder.toString();
+ }
+
+ /**
+ * Returns the descriptor corresponding to the given method.
+ *
+ * @param method a {@link Method} object.
+ * @return the descriptor of the given method.
+ */
+ public static String getMethodDescriptor(final Method method) {
+ StringBuilder stringBuilder = new StringBuilder();
+ stringBuilder.append('(');
+ Class<?>[] parameters = method.getParameterTypes();
+ for (Class<?> parameter : parameters) {
+ appendDescriptor(parameter, stringBuilder);
+ }
+ stringBuilder.append(')');
+ appendDescriptor(method.getReturnType(), stringBuilder);
+ return stringBuilder.toString();
+ }
+
+ /**
+ * Appends the descriptor corresponding to this type to the given string buffer.
+ *
+ * @param stringBuilder the string builder to which the descriptor must be appended.
+ */
+ private void appendDescriptor(final StringBuilder stringBuilder) {
+ if (sort == OBJECT) {
+ stringBuilder.append(valueBuffer, valueBegin - 1, valueEnd + 1);
+ } else if (sort == INTERNAL) {
+ stringBuilder.append('L').append(valueBuffer, valueBegin, valueEnd).append(';');
+ } else {
+ stringBuilder.append(valueBuffer, valueBegin, valueEnd);
+ }
+ }
+
+ /**
+ * Appends the descriptor of the given class to the given string builder.
+ *
+ * @param clazz the class whose descriptor must be computed.
+ * @param stringBuilder the string builder to which the descriptor must be appended.
+ */
+ private static void appendDescriptor(final Class<?> clazz, final StringBuilder stringBuilder) {
+ Class<?> currentClass = clazz;
+ while (currentClass.isArray()) {
+ stringBuilder.append('[');
+ currentClass = currentClass.getComponentType();
+ }
+ if (currentClass.isPrimitive()) {
+ char descriptor;
+ if (currentClass == Integer.TYPE) {
+ descriptor = 'I';
+ } else if (currentClass == Void.TYPE) {
+ descriptor = 'V';
+ } else if (currentClass == Boolean.TYPE) {
+ descriptor = 'Z';
+ } else if (currentClass == Byte.TYPE) {
+ descriptor = 'B';
+ } else if (currentClass == Character.TYPE) {
+ descriptor = 'C';
+ } else if (currentClass == Short.TYPE) {
+ descriptor = 'S';
+ } else if (currentClass == Double.TYPE) {
+ descriptor = 'D';
+ } else if (currentClass == Float.TYPE) {
+ descriptor = 'F';
+ } else if (currentClass == Long.TYPE) {
+ descriptor = 'J';
+ } else {
+ throw new AssertionError();
+ }
+ stringBuilder.append(descriptor);
+ } else {
+ stringBuilder.append('L');
+ String name = currentClass.getName();
+ int nameLength = name.length();
+ for (int i = 0; i < nameLength; ++i) {
+ char car = name.charAt(i);
+ stringBuilder.append(car == '.' ? '/' : car);
+ }
+ stringBuilder.append(';');
+ }
+ }
+
+ // -----------------------------------------------------------------------------------------------
+ // Methods to get the sort, dimension, size, and opcodes corresponding to a Type or descriptor.
+ // -----------------------------------------------------------------------------------------------
+
+ /**
+ * Returns the sort of this type.
+ *
+ * @return {@link #VOID}, {@link #BOOLEAN}, {@link #CHAR}, {@link #BYTE}, {@link #SHORT}, {@link
+ * #INT}, {@link #FLOAT}, {@link #LONG}, {@link #DOUBLE}, {@link #ARRAY}, {@link #OBJECT} or
+ * {@link #METHOD}.
+ */
+ public int getSort() {
+ return sort == INTERNAL ? OBJECT : sort;
+ }
+
+ /**
+ * Returns the number of dimensions of this array type. This method should only be used for an
+ * array type.
+ *
+ * @return the number of dimensions of this array type.
+ */
+ public int getDimensions() {
+ int numDimensions = 1;
+ while (valueBuffer.charAt(valueBegin + numDimensions) == '[') {
+ numDimensions++;
+ }
+ return numDimensions;
+ }
+
+ /**
+ * Returns the size of values of this type. This method must not be used for method types.
+ *
+ * @return the size of values of this type, i.e., 2 for {@code long} and {@code double}, 0 for
+ * {@code void} and 1 otherwise.
+ */
+ public int getSize() {
+ switch (sort) {
+ case VOID:
+ return 0;
+ case BOOLEAN:
+ case CHAR:
+ case BYTE:
+ case SHORT:
+ case INT:
+ case FLOAT:
+ case ARRAY:
+ case OBJECT:
+ case INTERNAL:
+ return 1;
+ case LONG:
+ case DOUBLE:
+ return 2;
+ default:
+ throw new AssertionError();
+ }
+ }
+
+ /**
+ * Returns the size of the arguments and of the return value of methods of this type. This method
+ * should only be used for method types.
+ *
+ * @return the size of the arguments of the method (plus one for the implicit this argument),
+ * argumentsSize, and the size of its return value, returnSize, packed into a single int i =
+ * {@code (argumentsSize << 2) | returnSize} (argumentsSize is therefore equal to {@code
+ * i >> 2}, and returnSize to {@code i & 0x03}).
+ */
+ public int getArgumentsAndReturnSizes() {
+ return getArgumentsAndReturnSizes(getDescriptor());
+ }
+
+ /**
+ * Computes the size of the arguments and of the return value of a method.
+ *
+ * @param methodDescriptor a method descriptor.
+ * @return the size of the arguments of the method (plus one for the implicit this argument),
+ * argumentsSize, and the size of its return value, returnSize, packed into a single int i =
+ * {@code (argumentsSize << 2) | returnSize} (argumentsSize is therefore equal to {@code
+ * i >> 2}, and returnSize to {@code i & 0x03}).
+ */
+ public static int getArgumentsAndReturnSizes(final String methodDescriptor) {
+ int argumentsSize = 1;
+ // Skip the first character, which is always a '('.
+ int currentOffset = 1;
+ int currentChar = methodDescriptor.charAt(currentOffset);
+ // Parse the argument types and compute their size, one at a each loop iteration.
+ while (currentChar != ')') {
+ if (currentChar == 'J' || currentChar == 'D') {
+ currentOffset++;
+ argumentsSize += 2;
+ } else {
+ while (methodDescriptor.charAt(currentOffset) == '[') {
+ currentOffset++;
}
- }
-
- /**
- * Returns the Java type corresponding to the return type of the given
- * method.
- *
- * @param method
- * a method.
- * @return the Java type corresponding to the return type of the given
- * method.
- */
- public static Type getReturnType(final Method method) {
- return getType(method.getReturnType());
- }
-
- /**
- * Computes the size of the arguments and of the return value of a method.
- *
- * @param desc
- * the descriptor of a method.
- * @return the size of the arguments of the method (plus one for the
- * implicit this argument), argSize, and the size of its return
- * value, retSize, packed into a single int i =
- * <tt>(argSize << 2) | retSize</tt> (argSize is therefore equal to
- * <tt>i >> 2</tt>, and retSize to <tt>i & 0x03</tt>).
- */
- public static int getArgumentsAndReturnSizes(final String desc) {
- int n = 1;
- int c = 1;
- while (true) {
- char car = desc.charAt(c++);
- if (car == ')') {
- car = desc.charAt(c);
- return n << 2
- | (car == 'V' ? 0 : (car == 'D' || car == 'J' ? 2 : 1));
- } else if (car == 'L') {
- while (desc.charAt(c++) != ';') {
- }
- n += 1;
- } else if (car == '[') {
- while ((car = desc.charAt(c)) == '[') {
- ++c;
- }
- if (car == 'D' || car == 'J') {
- n -= 1;
- }
- } else if (car == 'D' || car == 'J') {
- n += 2;
- } else {
- n += 1;
- }
+ if (methodDescriptor.charAt(currentOffset++) == 'L') {
+ // Skip the argument descriptor content.
+ currentOffset = methodDescriptor.indexOf(';', currentOffset) + 1;
}
- }
-
- /**
- * Returns the Java type corresponding to the given type descriptor. For
- * method descriptors, buf is supposed to contain nothing more than the
- * descriptor itself.
- *
- * @param buf
- * a buffer containing a type descriptor.
- * @param off
- * the offset of this descriptor in the previous buffer.
- * @return the Java type corresponding to the given type descriptor.
- */
- private static Type getType(final char[] buf, final int off) {
- int len;
- switch (buf[off]) {
- case 'V':
- return VOID_TYPE;
- case 'Z':
- return BOOLEAN_TYPE;
- case 'C':
- return CHAR_TYPE;
- case 'B':
- return BYTE_TYPE;
- case 'S':
- return SHORT_TYPE;
- case 'I':
- return INT_TYPE;
- case 'F':
- return FLOAT_TYPE;
- case 'J':
- return LONG_TYPE;
- case 'D':
- return DOUBLE_TYPE;
- case '[':
- len = 1;
- while (buf[off + len] == '[') {
- ++len;
- }
- if (buf[off + len] == 'L') {
- ++len;
- while (buf[off + len] != ';') {
- ++len;
- }
- }
- return new Type(ARRAY, buf, off, len + 1);
- case 'L':
- len = 1;
- while (buf[off + len] != ';') {
- ++len;
- }
- return new Type(OBJECT, buf, off + 1, len - 1);
- // case '(':
+ argumentsSize += 1;
+ }
+ currentChar = methodDescriptor.charAt(currentOffset);
+ }
+ currentChar = methodDescriptor.charAt(currentOffset + 1);
+ if (currentChar == 'V') {
+ return argumentsSize << 2;
+ } else {
+ int returnSize = (currentChar == 'J' || currentChar == 'D') ? 2 : 1;
+ return argumentsSize << 2 | returnSize;
+ }
+ }
+
+ /**
+ * Returns a JVM instruction opcode adapted to this {@link Type}. This method must not be used for
+ * method types.
+ *
+ * @param opcode a JVM instruction opcode. This opcode must be one of ILOAD, ISTORE, IALOAD,
+ * IASTORE, IADD, ISUB, IMUL, IDIV, IREM, INEG, ISHL, ISHR, IUSHR, IAND, IOR, IXOR and
+ * IRETURN.
+ * @return an opcode that is similar to the given opcode, but adapted to this {@link Type}. For
+ * example, if this type is {@code float} and {@code opcode} is IRETURN, this method returns
+ * FRETURN.
+ */
+ public int getOpcode(final int opcode) {
+ if (opcode == Opcodes.IALOAD || opcode == Opcodes.IASTORE) {
+ switch (sort) {
+ case BOOLEAN:
+ case BYTE:
+ return opcode + (Opcodes.BALOAD - Opcodes.IALOAD);
+ case CHAR:
+ return opcode + (Opcodes.CALOAD - Opcodes.IALOAD);
+ case SHORT:
+ return opcode + (Opcodes.SALOAD - Opcodes.IALOAD);
+ case INT:
+ return opcode;
+ case FLOAT:
+ return opcode + (Opcodes.FALOAD - Opcodes.IALOAD);
+ case LONG:
+ return opcode + (Opcodes.LALOAD - Opcodes.IALOAD);
+ case DOUBLE:
+ return opcode + (Opcodes.DALOAD - Opcodes.IALOAD);
+ case ARRAY:
+ case OBJECT:
+ case INTERNAL:
+ return opcode + (Opcodes.AALOAD - Opcodes.IALOAD);
+ case METHOD:
+ case VOID:
+ throw new UnsupportedOperationException();
default:
- return new Type(METHOD, buf, off, buf.length - off);
- }
- }
-
- // ------------------------------------------------------------------------
- // Accessors
- // ------------------------------------------------------------------------
-
- /**
- * Returns the sort of this Java type.
- *
- * @return {@link #VOID VOID}, {@link #BOOLEAN BOOLEAN}, {@link #CHAR CHAR},
- * {@link #BYTE BYTE}, {@link #SHORT SHORT}, {@link #INT INT},
- * {@link #FLOAT FLOAT}, {@link #LONG LONG}, {@link #DOUBLE DOUBLE},
- * {@link #ARRAY ARRAY}, {@link #OBJECT OBJECT} or {@link #METHOD
- * METHOD}.
- */
- public int getSort() {
- return sort;
- }
-
- /**
- * Returns the number of dimensions of this array type. This method should
- * only be used for an array type.
- *
- * @return the number of dimensions of this array type.
- */
- public int getDimensions() {
- int i = 1;
- while (buf[off + i] == '[') {
- ++i;
- }
- return i;
- }
-
- /**
- * Returns the type of the elements of this array type. This method should
- * only be used for an array type.
- *
- * @return Returns the type of the elements of this array type.
- */
- public Type getElementType() {
- return getType(buf, off + getDimensions());
- }
-
- /**
- * Returns the binary name of the class corresponding to this type. This
- * method must not be used on method types.
- *
- * @return the binary name of the class corresponding to this type.
- */
- public String getClassName() {
- switch (sort) {
+ throw new AssertionError();
+ }
+ } else {
+ switch (sort) {
case VOID:
- return "void";
+ if (opcode != Opcodes.IRETURN) {
+ throw new UnsupportedOperationException();
+ }
+ return Opcodes.RETURN;
case BOOLEAN:
- return "boolean";
- case CHAR:
- return "char";
case BYTE:
- return "byte";
+ case CHAR:
case SHORT:
- return "short";
case INT:
- return "int";
+ return opcode;
case FLOAT:
- return "float";
+ return opcode + (Opcodes.FRETURN - Opcodes.IRETURN);
case LONG:
- return "long";
+ return opcode + (Opcodes.LRETURN - Opcodes.IRETURN);
case DOUBLE:
- return "double";
+ return opcode + (Opcodes.DRETURN - Opcodes.IRETURN);
case ARRAY:
- StringBuilder sb = new StringBuilder(getElementType().getClassName());
- for (int i = getDimensions(); i > 0; --i) {
- sb.append("[]");
- }
- return sb.toString();
case OBJECT:
- return new String(buf, off, len).replace('/', '.');
+ case INTERNAL:
+ if (opcode != Opcodes.ILOAD && opcode != Opcodes.ISTORE && opcode != Opcodes.IRETURN) {
+ throw new UnsupportedOperationException();
+ }
+ return opcode + (Opcodes.ARETURN - Opcodes.IRETURN);
+ case METHOD:
+ throw new UnsupportedOperationException();
default:
- return null;
- }
- }
-
- /**
- * Returns the internal name of the class corresponding to this object or
- * array type. The internal name of a class is its fully qualified name (as
- * returned by Class.getName(), where '.' are replaced by '/'. This method
- * should only be used for an object or array type.
- *
- * @return the internal name of the class corresponding to this object type.
- */
- public String getInternalName() {
- return new String(buf, off, len);
- }
-
- /**
- * Returns the argument types of methods of this type. This method should
- * only be used for method types.
- *
- * @return the argument types of methods of this type.
- */
- public Type[] getArgumentTypes() {
- return getArgumentTypes(getDescriptor());
- }
-
- /**
- * Returns the return type of methods of this type. This method should only
- * be used for method types.
- *
- * @return the return type of methods of this type.
- */
- public Type getReturnType() {
- return getReturnType(getDescriptor());
- }
-
- /**
- * Returns the size of the arguments and of the return value of methods of
- * this type. This method should only be used for method types.
- *
- * @return the size of the arguments (plus one for the implicit this
- * argument), argSize, and the size of the return value, retSize,
- * packed into a single
- * int i = <tt>(argSize << 2) | retSize</tt>
- * (argSize is therefore equal to <tt>i >> 2</tt>,
- * and retSize to <tt>i & 0x03</tt>).
- */
- public int getArgumentsAndReturnSizes() {
- return getArgumentsAndReturnSizes(getDescriptor());
- }
-
- // ------------------------------------------------------------------------
- // Conversion to type descriptors
- // ------------------------------------------------------------------------
-
- /**
- * Returns the descriptor corresponding to this Java type.
- *
- * @return the descriptor corresponding to this Java type.
- */
- public String getDescriptor() {
- StringBuilder buf = new StringBuilder();
- getDescriptor(buf);
- return buf.toString();
- }
-
- /**
- * Returns the descriptor corresponding to the given argument and return
- * types.
- *
- * @param returnType
- * the return type of the method.
- * @param argumentTypes
- * the argument types of the method.
- * @return the descriptor corresponding to the given argument and return
- * types.
- */
- public static String getMethodDescriptor(final Type returnType,
- final Type... argumentTypes) {
- StringBuilder buf = new StringBuilder();
- buf.append('(');
- for (int i = 0; i < argumentTypes.length; ++i) {
- argumentTypes[i].getDescriptor(buf);
- }
- buf.append(')');
- returnType.getDescriptor(buf);
- return buf.toString();
- }
-
- /**
- * Appends the descriptor corresponding to this Java type to the given
- * string buffer.
- *
- * @param buf
- * the string buffer to which the descriptor must be appended.
- */
- private void getDescriptor(final StringBuilder buf) {
- if (this.buf == null) {
- // descriptor is in byte 3 of 'off' for primitive types (buf ==
- // null)
- buf.append((char) ((off & 0xFF000000) >>> 24));
- } else if (sort == OBJECT) {
- buf.append('L');
- buf.append(this.buf, off, len);
- buf.append(';');
- } else { // sort == ARRAY || sort == METHOD
- buf.append(this.buf, off, len);
- }
- }
-
- // ------------------------------------------------------------------------
- // Direct conversion from classes to type descriptors,
- // without intermediate Type objects
- // ------------------------------------------------------------------------
-
- /**
- * Returns the internal name of the given class. The internal name of a
- * class is its fully qualified name, as returned by Class.getName(), where
- * '.' are replaced by '/'.
- *
- * @param c
- * an object or array class.
- * @return the internal name of the given class.
- */
- public static String getInternalName(final Class<?> c) {
- return c.getName().replace('.', '/');
- }
-
- /**
- * Returns the descriptor corresponding to the given Java type.
- *
- * @param c
- * an object class, a primitive class or an array class.
- * @return the descriptor corresponding to the given class.
- */
- public static String getDescriptor(final Class<?> c) {
- StringBuilder buf = new StringBuilder();
- getDescriptor(buf, c);
- return buf.toString();
- }
-
- /**
- * Returns the descriptor corresponding to the given constructor.
- *
- * @param c
- * a {@link Constructor Constructor} object.
- * @return the descriptor of the given constructor.
- */
- public static String getConstructorDescriptor(final Constructor<?> c) {
- Class<?>[] parameters = c.getParameterTypes();
- StringBuilder buf = new StringBuilder();
- buf.append('(');
- for (int i = 0; i < parameters.length; ++i) {
- getDescriptor(buf, parameters[i]);
- }
- return buf.append(")V").toString();
- }
-
- /**
- * Returns the descriptor corresponding to the given method.
- *
- * @param m
- * a {@link Method Method} object.
- * @return the descriptor of the given method.
- */
- public static String getMethodDescriptor(final Method m) {
- Class<?>[] parameters = m.getParameterTypes();
- StringBuilder buf = new StringBuilder();
- buf.append('(');
- for (int i = 0; i < parameters.length; ++i) {
- getDescriptor(buf, parameters[i]);
- }
- buf.append(')');
- getDescriptor(buf, m.getReturnType());
- return buf.toString();
- }
-
- /**
- * Appends the descriptor of the given class to the given string buffer.
- *
- * @param buf
- * the string buffer to which the descriptor must be appended.
- * @param c
- * the class whose descriptor must be computed.
- */
- private static void getDescriptor(final StringBuilder buf, final Class<?> c) {
- Class<?> d = c;
- while (true) {
- if (d.isPrimitive()) {
- char car;
- if (d == Integer.TYPE) {
- car = 'I';
- } else if (d == Void.TYPE) {
- car = 'V';
- } else if (d == Boolean.TYPE) {
- car = 'Z';
- } else if (d == Byte.TYPE) {
- car = 'B';
- } else if (d == Character.TYPE) {
- car = 'C';
- } else if (d == Short.TYPE) {
- car = 'S';
- } else if (d == Double.TYPE) {
- car = 'D';
- } else if (d == Float.TYPE) {
- car = 'F';
- } else /* if (d == Long.TYPE) */{
- car = 'J';
- }
- buf.append(car);
- return;
- } else if (d.isArray()) {
- buf.append('[');
- d = d.getComponentType();
- } else {
- buf.append('L');
- String name = d.getName();
- int len = name.length();
- for (int i = 0; i < len; ++i) {
- char car = name.charAt(i);
- buf.append(car == '.' ? '/' : car);
- }
- buf.append(';');
- return;
- }
- }
- }
-
- // ------------------------------------------------------------------------
- // Corresponding size and opcodes
- // ------------------------------------------------------------------------
-
- /**
- * Returns the size of values of this type. This method must not be used for
- * method types.
- *
- * @return the size of values of this type, i.e., 2 for <tt>long</tt> and
- * <tt>double</tt>, 0 for <tt>void</tt> and 1 otherwise.
- */
- public int getSize() {
- // the size is in byte 0 of 'off' for primitive types (buf == null)
- return buf == null ? (off & 0xFF) : 1;
- }
-
- /**
- * Returns a JVM instruction opcode adapted to this Java type. This method
- * must not be used for method types.
- *
- * @param opcode
- * a JVM instruction opcode. This opcode must be one of ILOAD,
- * ISTORE, IALOAD, IASTORE, IADD, ISUB, IMUL, IDIV, IREM, INEG,
- * ISHL, ISHR, IUSHR, IAND, IOR, IXOR and IRETURN.
- * @return an opcode that is similar to the given opcode, but adapted to
- * this Java type. For example, if this type is <tt>float</tt> and
- * <tt>opcode</tt> is IRETURN, this method returns FRETURN.
- */
- public int getOpcode(final int opcode) {
- if (opcode == Opcodes.IALOAD || opcode == Opcodes.IASTORE) {
- // the offset for IALOAD or IASTORE is in byte 1 of 'off' for
- // primitive types (buf == null)
- return opcode + (buf == null ? (off & 0xFF00) >> 8 : 4);
- } else {
- // the offset for other instructions is in byte 2 of 'off' for
- // primitive types (buf == null)
- return opcode + (buf == null ? (off & 0xFF0000) >> 16 : 4);
- }
- }
-
- // ------------------------------------------------------------------------
- // Equals, hashCode and toString
- // ------------------------------------------------------------------------
-
- /**
- * Tests if the given object is equal to this type.
- *
- * @param o
- * the object to be compared to this type.
- * @return <tt>true</tt> if the given object is equal to this type.
- */
- @Override
- public boolean equals(final Object o) {
- if (this == o) {
- return true;
- }
- if (!(o instanceof Type)) {
- return false;
- }
- Type t = (Type) o;
- if (sort != t.sort) {
- return false;
- }
- if (sort >= ARRAY) {
- if (len != t.len) {
- return false;
- }
- for (int i = off, j = t.off, end = i + len; i < end; i++, j++) {
- if (buf[i] != t.buf[j]) {
- return false;
- }
- }
- }
- return true;
- }
-
- /**
- * Returns a hash code value for this type.
- *
- * @return a hash code value for this type.
- */
- @Override
- public int hashCode() {
- int hc = 13 * sort;
- if (sort >= ARRAY) {
- for (int i = off, end = i + len; i < end; i++) {
- hc = 17 * (hc + buf[i]);
- }
- }
- return hc;
- }
-
- /**
- * Returns a string representation of this type.
- *
- * @return the descriptor of this type.
- */
- @Override
- public String toString() {
- return getDescriptor();
- }
+ throw new AssertionError();
+ }
+ }
+ }
+
+ // -----------------------------------------------------------------------------------------------
+ // Equals, hashCode and toString.
+ // -----------------------------------------------------------------------------------------------
+
+ /**
+ * Tests if the given object is equal to this type.
+ *
+ * @param object the object to be compared to this type.
+ * @return {@literal true} if the given object is equal to this type.
+ */
+ @Override
+ public boolean equals(final Object object) {
+ if (this == object) {
+ return true;
+ }
+ if (!(object instanceof Type)) {
+ return false;
+ }
+ Type other = (Type) object;
+ if ((sort == INTERNAL ? OBJECT : sort) != (other.sort == INTERNAL ? OBJECT : other.sort)) {
+ return false;
+ }
+ int begin = valueBegin;
+ int end = valueEnd;
+ int otherBegin = other.valueBegin;
+ int otherEnd = other.valueEnd;
+ // Compare the values.
+ if (end - begin != otherEnd - otherBegin) {
+ return false;
+ }
+ for (int i = begin, j = otherBegin; i < end; i++, j++) {
+ if (valueBuffer.charAt(i) != other.valueBuffer.charAt(j)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Returns a hash code value for this type.
+ *
+ * @return a hash code value for this type.
+ */
+ @Override
+ public int hashCode() {
+ int hashCode = 13 * (sort == INTERNAL ? OBJECT : sort);
+ if (sort >= ARRAY) {
+ for (int i = valueBegin, end = valueEnd; i < end; i++) {
+ hashCode = 17 * (hashCode + valueBuffer.charAt(i));
+ }
+ }
+ return hashCode;
+ }
+
+ /**
+ * Returns a string representation of this type.
+ *
+ * @return the descriptor of this type.
+ */
+ @Override
+ public String toString() {
+ return getDescriptor();
+ }
}
http://git-wip-us.apache.org/repos/asf/tapestry-5/blob/1c71aec7/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/TypePath.java
----------------------------------------------------------------------
diff --git a/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/TypePath.java b/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/TypePath.java
old mode 100644
new mode 100755
index d86420d..06dd679
--- a/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/TypePath.java
+++ b/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/TypePath.java
@@ -1,196 +1,201 @@
-/***
- * ASM: a very small and fast Java bytecode manipulation framework
- * Copyright (c) 2000-2013 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.apache.tapestry5.internal.plastic.asm;
-
-/**
- * The path to a type argument, wildcard bound, array element type, or static
- * inner type within an enclosing type.
- *
- * @author Eric Bruneton
- */
-public class TypePath {
-
- /**
- * A type path step that steps into the element type of an array type. See
- * {@link #getStep getStep}.
- */
- public final static int ARRAY_ELEMENT = 0;
-
- /**
- * A type path step that steps into the nested type of a class type. See
- * {@link #getStep getStep}.
- */
- public final static int INNER_TYPE = 1;
-
- /**
- * A type path step that steps into the bound of a wildcard type. See
- * {@link #getStep getStep}.
- */
- public final static int WILDCARD_BOUND = 2;
-
- /**
- * A type path step that steps into a type argument of a generic type. See
- * {@link #getStep getStep}.
- */
- public final static int TYPE_ARGUMENT = 3;
-
- /**
- * The byte array where the path is stored, in Java class file format.
- */
- byte[] b;
-
- /**
- * The offset of the first byte of the type path in 'b'.
- */
- int offset;
-
- /**
- * Creates a new type path.
- *
- * @param b
- * the byte array containing the type path in Java class file
- * format.
- * @param offset
- * the offset of the first byte of the type path in 'b'.
- */
- TypePath(byte[] b, int offset) {
- this.b = b;
- this.offset = offset;
- }
-
- /**
- * Returns the length of this path.
- *
- * @return the length of this path.
- */
- public int getLength() {
- return b[offset];
- }
-
- /**
- * Returns the value of the given step of this path.
- *
- * @param index
- * an index between 0 and {@link #getLength()}, exclusive.
- * @return {@link #ARRAY_ELEMENT ARRAY_ELEMENT}, {@link #INNER_TYPE
- * INNER_TYPE}, {@link #WILDCARD_BOUND WILDCARD_BOUND}, or
- * {@link #TYPE_ARGUMENT TYPE_ARGUMENT}.
- */
- public int getStep(int index) {
- return b[offset + 2 * index + 1];
- }
-
- /**
- * Returns the index of the type argument that the given step is stepping
- * into. This method should only be used for steps whose value is
- * {@link #TYPE_ARGUMENT TYPE_ARGUMENT}.
- *
- * @param index
- * an index between 0 and {@link #getLength()}, exclusive.
- * @return the index of the type argument that the given step is stepping
- * into.
- */
- public int getStepArgument(int index) {
- return b[offset + 2 * index + 2];
- }
-
- /**
- * Converts a type path in string form, in the format used by
- * {@link #toString()}, into a TypePath object.
- *
- * @param typePath
- * a type path in string form, in the format used by
- * {@link #toString()}. May be null or empty.
- * @return the corresponding TypePath object, or null if the path is empty.
- */
- public static TypePath fromString(final String typePath) {
- if (typePath == null || typePath.length() == 0) {
- return null;
- }
- int n = typePath.length();
- ByteVector out = new ByteVector(n);
- out.putByte(0);
- for (int i = 0; i < n;) {
- char c = typePath.charAt(i++);
- if (c == '[') {
- out.put11(ARRAY_ELEMENT, 0);
- } else if (c == '.') {
- out.put11(INNER_TYPE, 0);
- } else if (c == '*') {
- out.put11(WILDCARD_BOUND, 0);
- } else if (c >= '0' && c <= '9') {
- int typeArg = c - '0';
- while (i < n && (c = typePath.charAt(i)) >= '0' && c <= '9') {
- typeArg = typeArg * 10 + c - '0';
- i += 1;
- }
- if (i < n && typePath.charAt(i) == ';') {
- i += 1;
- }
- out.put11(TYPE_ARGUMENT, typeArg);
- }
- }
- out.data[0] = (byte) (out.length / 2);
- return new TypePath(out.data, 0);
- }
-
- /**
- * Returns a string representation of this type path. {@link #ARRAY_ELEMENT
- * ARRAY_ELEMENT} steps are represented with '[', {@link #INNER_TYPE
- * INNER_TYPE} steps with '.', {@link #WILDCARD_BOUND WILDCARD_BOUND} steps
- * with '*' and {@link #TYPE_ARGUMENT TYPE_ARGUMENT} steps with their type
- * argument index in decimal form followed by ';'.
- */
- @Override
- public String toString() {
- int length = getLength();
- StringBuilder result = new StringBuilder(length * 2);
- for (int i = 0; i < length; ++i) {
- switch (getStep(i)) {
- case ARRAY_ELEMENT:
- result.append('[');
- break;
- case INNER_TYPE:
- result.append('.');
- break;
- case WILDCARD_BOUND:
- result.append('*');
- break;
- case TYPE_ARGUMENT:
- result.append(getStepArgument(i)).append(';');
- break;
- default:
- result.append('_');
- }
- }
- return result.toString();
- }
-}
+// ASM: a very small and fast Java bytecode manipulation framework
+// Copyright (c) 2000-2011 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.apache.tapestry5.internal.plastic.asm;
+
+/**
+ * The path to a type argument, wildcard bound, array element type, or static inner type within an
+ * enclosing type.
+ *
+ * @author Eric Bruneton
+ */
+public final class TypePath {
+
+ /** A type path step that steps into the element type of an array type. See {@link #getStep}. */
+ public static final int ARRAY_ELEMENT = 0;
+
+ /** A type path step that steps into the nested type of a class type. See {@link #getStep}. */
+ public static final int INNER_TYPE = 1;
+
+ /** A type path step that steps into the bound of a wildcard type. See {@link #getStep}. */
+ public static final int WILDCARD_BOUND = 2;
+
+ /** A type path step that steps into a type argument of a generic type. See {@link #getStep}. */
+ public static final int TYPE_ARGUMENT = 3;
+
+ /**
+ * The byte array where the 'type_path' structure - as defined in the Java Virtual Machine
+ * Specification (JVMS) - corresponding to this TypePath is stored. The first byte of the
+ * structure in this array is given by {@link #typePathOffset}.
+ *
+ * @see <a
+ * href="https://docs.oracle.com/javase/specs/jvms/se9/html/jvms-4.html#jvms-4.7.20.2">JVMS
+ * 4.7.20.2</a>
+ */
+ private final byte[] typePathContainer;
+
+ /** The offset of the first byte of the type_path JVMS structure in {@link #typePathContainer}. */
+ private final int typePathOffset;
+
+ /**
+ * Constructs a new TypePath.
+ *
+ * @param typePathContainer a byte array containing a type_path JVMS structure.
+ * @param typePathOffset the offset of the first byte of the type_path structure in
+ * typePathContainer.
+ */
+ TypePath(final byte[] typePathContainer, final int typePathOffset) {
+ this.typePathContainer = typePathContainer;
+ this.typePathOffset = typePathOffset;
+ }
+
+ /**
+ * Returns the length of this path, i.e. its number of steps.
+ *
+ * @return the length of this path.
+ */
+ public int getLength() {
+ // path_length is stored in the first byte of a type_path.
+ return typePathContainer[typePathOffset];
+ }
+
+ /**
+ * Returns the value of the given step of this path.
+ *
+ * @param index an index between 0 and {@link #getLength()}, exclusive.
+ * @return one of {@link #ARRAY_ELEMENT}, {@link #INNER_TYPE}, {@link #WILDCARD_BOUND}, or {@link
+ * #TYPE_ARGUMENT}.
+ */
+ public int getStep(final int index) {
+ // Returns the type_path_kind of the path element of the given index.
+ return typePathContainer[typePathOffset + 2 * index + 1];
+ }
+
+ /**
+ * Returns the index of the type argument that the given step is stepping into. This method should
+ * only be used for steps whose value is {@link #TYPE_ARGUMENT}.
+ *
+ * @param index an index between 0 and {@link #getLength()}, exclusive.
+ * @return the index of the type argument that the given step is stepping into.
+ */
+ public int getStepArgument(final int index) {
+ // Returns the type_argument_index of the path element of the given index.
+ return typePathContainer[typePathOffset + 2 * index + 2];
+ }
+
+ /**
+ * Converts a type path in string form, in the format used by {@link #toString()}, into a TypePath
+ * object.
+ *
+ * @param typePath a type path in string form, in the format used by {@link #toString()}. May be
+ * {@literal null} or empty.
+ * @return the corresponding TypePath object, or {@literal null} if the path is empty.
+ */
+ public static TypePath fromString(final String typePath) {
+ if (typePath == null || typePath.length() == 0) {
+ return null;
+ }
+ int typePathLength = typePath.length();
+ ByteVector output = new ByteVector(typePathLength);
+ output.putByte(0);
+ int typePathIndex = 0;
+ while (typePathIndex < typePathLength) {
+ char c = typePath.charAt(typePathIndex++);
+ if (c == '[') {
+ output.put11(ARRAY_ELEMENT, 0);
+ } else if (c == '.') {
+ output.put11(INNER_TYPE, 0);
+ } else if (c == '*') {
+ output.put11(WILDCARD_BOUND, 0);
+ } else if (c >= '0' && c <= '9') {
+ int typeArg = c - '0';
+ while (typePathIndex < typePathLength) {
+ c = typePath.charAt(typePathIndex++);
+ if (c >= '0' && c <= '9') {
+ typeArg = typeArg * 10 + c - '0';
+ } else if (c == ';') {
+ break;
+ } else {
+ throw new IllegalArgumentException();
+ }
+ }
+ output.put11(TYPE_ARGUMENT, typeArg);
+ } else {
+ throw new IllegalArgumentException();
+ }
+ }
+ output.data[0] = (byte) (output.length / 2);
+ return new TypePath(output.data, 0);
+ }
+
+ /**
+ * Returns a string representation of this type path. {@link #ARRAY_ELEMENT} steps are represented
+ * with '[', {@link #INNER_TYPE} steps with '.', {@link #WILDCARD_BOUND} steps with '*' and {@link
+ * #TYPE_ARGUMENT} steps with their type argument index in decimal form followed by ';'.
+ */
+ @Override
+ public String toString() {
+ int length = getLength();
+ StringBuilder result = new StringBuilder(length * 2);
+ for (int i = 0; i < length; ++i) {
+ switch (getStep(i)) {
+ case ARRAY_ELEMENT:
+ result.append('[');
+ break;
+ case INNER_TYPE:
+ result.append('.');
+ break;
+ case WILDCARD_BOUND:
+ result.append('*');
+ break;
+ case TYPE_ARGUMENT:
+ result.append(getStepArgument(i)).append(';');
+ break;
+ default:
+ throw new AssertionError();
+ }
+ }
+ return result.toString();
+ }
+
+ /**
+ * Puts the type_path JVMS structure corresponding to the given TypePath into the given
+ * ByteVector.
+ *
+ * @param typePath a TypePath instance, or {@literal null} for empty paths.
+ * @param output where the type path must be put.
+ */
+ static void put(final TypePath typePath, final ByteVector output) {
+ if (typePath == null) {
+ output.putByte(0);
+ } else {
+ int length = typePath.typePathContainer[typePath.typePathOffset] * 2 + 1;
+ output.putByteArray(typePath.typePathContainer, typePath.typePathOffset, length);
+ }
+ }
+}