soot.coffi.Code_attribute Maven / Gradle / Ivy
package soot.coffi;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 1997 Clark Verbrugge
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
/**
* There should be exactly one code attribute in every method; there may also be a code attribute associated with a field (as
* an initializer).
*
* @see attribute_info
* @see method_info#attributes
* @see field_info#attributes
* @see ClassFile@attributes
* @author Clark Verbrugge
*/
class Code_attribute extends attribute_info {
/** Maximum size of the operand stack. */
public int max_stack;
/** Maximum number of locals required. */
public int max_locals;
/** Length of code array. */
public long code_length;
/** Actual array of bytecode. */
public byte code[];
/** Length of exception table array. */
public int exception_table_length;
/**
* Exception table array.
*
* @see exception_table_entry
*/
public exception_table_entry exception_table[];
/** Length of attributes array. */
int attributes_count;
/**
* Array of attributes.
*
* @see attribute_info
*/
attribute_info attributes[];
/**
* Locates the LocalVariableTable attribute, if one is present.
*
* @return the local variable table attribute, or null if not found.
* @see LocalVariableTable_attribute
* @see method_info#makeLocals
*/
public LocalVariableTable_attribute findLocalVariableTable() {
int i;
for (i = 0; i < attributes_count; i++) {
if (attributes[i] instanceof LocalVariableTable_attribute) {
return (LocalVariableTable_attribute) (attributes[i]);
}
}
return null;
}
/**
* Locates the LocalVariableTypeTable attribute, if one is present.
*
* @return the local variable type table attribute, or null if not found.
* @see LocalVariableTypeTable_attribute
* @see method_info#makeLocals
*/
public LocalVariableTypeTable_attribute findLocalVariableTypeTable() {
int i;
for (i = 0; i < attributes_count; i++) {
if (attributes[i] instanceof LocalVariableTypeTable_attribute) {
return (LocalVariableTypeTable_attribute) (attributes[i]);
}
}
return null;
}
}