src/share/classes/jdk/internal/org/objectweb/asm/tree/analysis/Interpreter.java
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*** 69,79 ****
* transfer of values to or from the stack, and to or from the local variables.
* This separation allows a generic bytecode {@link Analyzer} to work with
* various semantic interpreters, without needing to duplicate the code to
* simulate the transfer of values.
*
! * @param <V> type of the Value used for the analysis.
*
* @author Eric Bruneton
*/
public abstract class Interpreter<V extends Value> {
--- 69,80 ----
* transfer of values to or from the stack, and to or from the local variables.
* This separation allows a generic bytecode {@link Analyzer} to work with
* various semantic interpreters, without needing to duplicate the code to
* simulate the transfer of values.
*
! * @param <V>
! * type of the Value used for the analysis.
*
* @author Eric Bruneton
*/
public abstract class Interpreter<V extends Value> {
*** 84,99 ****
}
/**
* Creates a new value that represents the given type.
*
! * Called for method parameters (including <code>this</code>),
! * exception handler variable and with <code>null</code> type
! * for variables reserved by long and double types.
*
! * @param type a primitive or reference type, or <tt>null</tt> to
! * represent an uninitialized value.
* @return a value that represents the given type. The size of the returned
* value must be equal to the size of the given type.
*/
public abstract V newValue(Type type);
--- 85,101 ----
}
/**
* Creates a new value that represents the given type.
*
! * Called for method parameters (including <code>this</code>), exception
! * handler variable and with <code>null</code> type for variables reserved
! * by long and double types.
*
! * @param type
! * a primitive or reference type, or <tt>null</tt> to represent
! * an uninitialized value.
* @return a value that represents the given type. The size of the returned
* value must be equal to the size of the given type.
*/
public abstract V newValue(Type type);
*** 103,115 ****
*
* ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4,
* ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0,
* DCONST_1, BIPUSH, SIPUSH, LDC, JSR, GETSTATIC, NEW
*
! * @param insn the bytecode instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
public abstract V newOperation(AbstractInsnNode insn)
throws AnalyzerException;
/**
--- 105,119 ----
*
* ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4,
* ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0,
* DCONST_1, BIPUSH, SIPUSH, LDC, JSR, GETSTATIC, NEW
*
! * @param insn
! * the bytecode instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
public abstract V newOperation(AbstractInsnNode insn)
throws AnalyzerException;
/**
*** 117,131 ****
* or from local variables. This method is called for the following opcodes:
*
* ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE,
* ASTORE, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP
*
! * @param insn the bytecode instruction to be interpreted.
! * @param value the value that must be moved by the instruction.
* @return the result of the interpretation of the given instruction. The
* returned value must be <tt>equal</tt> to the given value.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
public abstract V copyOperation(AbstractInsnNode insn, V value)
throws AnalyzerException;
/**
--- 121,138 ----
* or from local variables. This method is called for the following opcodes:
*
* ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE,
* ASTORE, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP
*
! * @param insn
! * the bytecode instruction to be interpreted.
! * @param value
! * the value that must be moved by the instruction.
* @return the result of the interpretation of the given instruction. The
* returned value must be <tt>equal</tt> to the given value.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
public abstract V copyOperation(AbstractInsnNode insn, V value)
throws AnalyzerException;
/**
*** 136,149 ****
* F2D, D2I, D2L, D2F, I2B, I2C, I2S, IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE,
* TABLESWITCH, LOOKUPSWITCH, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN,
* PUTSTATIC, GETFIELD, NEWARRAY, ANEWARRAY, ARRAYLENGTH, ATHROW, CHECKCAST,
* INSTANCEOF, MONITORENTER, MONITOREXIT, IFNULL, IFNONNULL
*
! * @param insn the bytecode instruction to be interpreted.
! * @param value the argument of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
public abstract V unaryOperation(AbstractInsnNode insn, V value)
throws AnalyzerException;
/**
--- 143,159 ----
* F2D, D2I, D2L, D2F, I2B, I2C, I2S, IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE,
* TABLESWITCH, LOOKUPSWITCH, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN,
* PUTSTATIC, GETFIELD, NEWARRAY, ANEWARRAY, ARRAYLENGTH, ATHROW, CHECKCAST,
* INSTANCEOF, MONITORENTER, MONITOREXIT, IFNULL, IFNONNULL
*
! * @param insn
! * the bytecode instruction to be interpreted.
! * @param value
! * the argument of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
public abstract V unaryOperation(AbstractInsnNode insn, V value)
throws AnalyzerException;
/**
*** 155,169 ****
* LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, ISHL, LSHL, ISHR, LSHR, IUSHR,
* LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, LCMP, FCMPL, FCMPG, DCMPL,
* DCMPG, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE,
* IF_ACMPEQ, IF_ACMPNE, PUTFIELD
*
! * @param insn the bytecode instruction to be interpreted.
! * @param value1 the first argument of the instruction to be interpreted.
! * @param value2 the second argument of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
public abstract V binaryOperation(AbstractInsnNode insn, V value1, V value2)
throws AnalyzerException;
/**
--- 165,183 ----
* LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, ISHL, LSHL, ISHR, LSHR, IUSHR,
* LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, LCMP, FCMPL, FCMPG, DCMPL,
* DCMPG, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE,
* IF_ACMPEQ, IF_ACMPNE, PUTFIELD
*
! * @param insn
! * the bytecode instruction to be interpreted.
! * @param value1
! * the first argument of the instruction to be interpreted.
! * @param value2
! * the second argument of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
public abstract V binaryOperation(AbstractInsnNode insn, V value1, V value2)
throws AnalyzerException;
/**
*** 170,233 ****
* Interprets a bytecode instruction with three arguments. This method is
* called for the following opcodes:
*
* IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE
*
! * @param insn the bytecode instruction to be interpreted.
! * @param value1 the first argument of the instruction to be interpreted.
! * @param value2 the second argument of the instruction to be interpreted.
! * @param value3 the third argument of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
! public abstract V ternaryOperation(
! AbstractInsnNode insn,
! V value1,
! V value2,
! V value3) throws AnalyzerException;
/**
* Interprets a bytecode instruction with a variable number of arguments.
* This method is called for the following opcodes:
*
* INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC, INVOKEINTERFACE,
* MULTIANEWARRAY and INVOKEDYNAMIC
*
! * @param insn the bytecode instruction to be interpreted.
! * @param values the arguments of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
! public abstract V naryOperation(
! AbstractInsnNode insn,
! List< ? extends V> values) throws AnalyzerException;
/**
* Interprets a bytecode return instruction. This method is called for the
* following opcodes:
*
* IRETURN, LRETURN, FRETURN, DRETURN, ARETURN
*
! * @param insn the bytecode instruction to be interpreted.
! * @param value the argument of the instruction to be interpreted.
! * @param expected the expected return type of the analyzed method.
! * @throws AnalyzerException if an error occured during the interpretation.
*/
! public abstract void returnOperation(
! AbstractInsnNode insn,
! V value,
V expected) throws AnalyzerException;
/**
* Merges two values. The merge operation must return a value that
* represents both values (for instance, if the two values are two types,
* the merged value must be a common super type of the two types. If the two
* values are integer intervals, the merged value must be an interval that
* contains the previous ones. Likewise for other types of values).
*
! * @param v a value.
! * @param w another value.
* @return the merged value. If the merged value is equal to <tt>v</tt>,
* this method <i>must</i> return <tt>v</tt>.
*/
public abstract V merge(V v, V w);
}
--- 184,255 ----
* Interprets a bytecode instruction with three arguments. This method is
* called for the following opcodes:
*
* IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE
*
! * @param insn
! * the bytecode instruction to be interpreted.
! * @param value1
! * the first argument of the instruction to be interpreted.
! * @param value2
! * the second argument of the instruction to be interpreted.
! * @param value3
! * the third argument of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
! public abstract V ternaryOperation(AbstractInsnNode insn, V value1,
! V value2, V value3) throws AnalyzerException;
/**
* Interprets a bytecode instruction with a variable number of arguments.
* This method is called for the following opcodes:
*
* INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC, INVOKEINTERFACE,
* MULTIANEWARRAY and INVOKEDYNAMIC
*
! * @param insn
! * the bytecode instruction to be interpreted.
! * @param values
! * the arguments of the instruction to be interpreted.
* @return the result of the interpretation of the given instruction.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
! public abstract V naryOperation(AbstractInsnNode insn,
! List<? extends V> values) throws AnalyzerException;
/**
* Interprets a bytecode return instruction. This method is called for the
* following opcodes:
*
* IRETURN, LRETURN, FRETURN, DRETURN, ARETURN
*
! * @param insn
! * the bytecode instruction to be interpreted.
! * @param value
! * the argument of the instruction to be interpreted.
! * @param expected
! * the expected return type of the analyzed method.
! * @throws AnalyzerException
! * if an error occured during the interpretation.
*/
! public abstract void returnOperation(AbstractInsnNode insn, V value,
V expected) throws AnalyzerException;
/**
* Merges two values. The merge operation must return a value that
* represents both values (for instance, if the two values are two types,
* the merged value must be a common super type of the two types. If the two
* values are integer intervals, the merged value must be an interval that
* contains the previous ones. Likewise for other types of values).
*
! * @param v
! * a value.
! * @param w
! * another value.
* @return the merged value. If the merged value is equal to <tt>v</tt>,
* this method <i>must</i> return <tt>v</tt>.
*/
public abstract V merge(V v, V w);
}