diff options
Diffstat (limited to 'src/asm/scala/tools/asm/tree/analysis/Interpreter.java')
| -rw-r--r-- | src/asm/scala/tools/asm/tree/analysis/Interpreter.java | 110 |
1 files changed, 66 insertions, 44 deletions
diff --git a/src/asm/scala/tools/asm/tree/analysis/Interpreter.java b/src/asm/scala/tools/asm/tree/analysis/Interpreter.java index 930c8f4af8..56f4bedc00 100644 --- a/src/asm/scala/tools/asm/tree/analysis/Interpreter.java +++ b/src/asm/scala/tools/asm/tree/analysis/Interpreter.java @@ -42,7 +42,8 @@ import scala.tools.asm.tree.AbstractInsnNode; * 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. + * @param <V> + * type of the Value used for the analysis. * * @author Eric Bruneton */ @@ -57,12 +58,13 @@ public abstract class Interpreter<V extends Value> { /** * 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. + * 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. + * @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. */ @@ -76,9 +78,11 @@ public abstract class Interpreter<V extends Value> { * 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. + * @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. + * @throws AnalyzerException + * if an error occured during the interpretation. */ public abstract V newOperation(AbstractInsnNode insn) throws AnalyzerException; @@ -90,11 +94,14 @@ public abstract class Interpreter<V extends Value> { * 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. + * @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. + * @throws AnalyzerException + * if an error occured during the interpretation. */ public abstract V copyOperation(AbstractInsnNode insn, V value) throws AnalyzerException; @@ -109,10 +116,13 @@ public abstract class Interpreter<V extends Value> { * 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. + * @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. + * @throws AnalyzerException + * if an error occured during the interpretation. */ public abstract V unaryOperation(AbstractInsnNode insn, V value) throws AnalyzerException; @@ -128,11 +138,15 @@ public abstract class Interpreter<V extends Value> { * 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. + * @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. + * @throws AnalyzerException + * if an error occured during the interpretation. */ public abstract V binaryOperation(AbstractInsnNode insn, V value1, V value2) throws AnalyzerException; @@ -143,18 +157,20 @@ public abstract class Interpreter<V extends Value> { * * 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. + * @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. + * @throws AnalyzerException + * if an error occured during the interpretation. */ - public abstract V ternaryOperation( - AbstractInsnNode insn, - V value1, - V value2, - V value3) throws AnalyzerException; + public abstract V ternaryOperation(AbstractInsnNode insn, V value1, + V value2, V value3) throws AnalyzerException; /** * Interprets a bytecode instruction with a variable number of arguments. @@ -163,14 +179,16 @@ public abstract class Interpreter<V extends Value> { * 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. + * @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. + * @throws AnalyzerException + * if an error occured during the interpretation. */ - public abstract V naryOperation( - AbstractInsnNode insn, - List< ? extends V> values) throws AnalyzerException; + public abstract V naryOperation(AbstractInsnNode insn, + List<? extends V> values) throws AnalyzerException; /** * Interprets a bytecode return instruction. This method is called for the @@ -178,15 +196,17 @@ public abstract class Interpreter<V extends Value> { * * 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. + * @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; + public abstract void returnOperation(AbstractInsnNode insn, V value, + V expected) throws AnalyzerException; /** * Merges two values. The merge operation must return a value that @@ -195,8 +215,10 @@ public abstract class Interpreter<V extends Value> { * 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. + * @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>. */ |