Package javassist.expr
Class Expr
- java.lang.Object
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- javassist.expr.Expr
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- All Implemented Interfaces:
Opcode
- Direct Known Subclasses:
Cast
,FieldAccess
,Handler
,Instanceof
,MethodCall
,NewArray
,NewExpr
public abstract class Expr extends Object implements Opcode
Expression.
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Field Summary
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Fields inherited from interface javassist.bytecode.Opcode
AALOAD, AASTORE, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DLOAD_0, DLOAD_1, DLOAD_2, DLOAD_3, DMUL, DNEG, DREM, DRETURN, DSTORE, DSTORE_0, DSTORE_1, DSTORE_2, DSTORE_3, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAD_0, FLOAD_1, FLOAD_2, FLOAD_3, FMUL, FNEG, FREM, FRETURN, FSTORE, FSTORE_0, FSTORE_1, FSTORE_2, FSTORE_3, FSUB, GETFIELD, GETSTATIC, GOTO, GOTO_W, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, ILOAD_0, ILOAD_1, ILOAD_2, ILOAD_3, IMUL, INEG, INSTANCEOF, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISTORE_0, ISTORE_1, ISTORE_2, ISTORE_3, ISUB, IUSHR, IXOR, JSR, JSR_W, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDC_W, LDC2_W, LDIV, LLOAD, LLOAD_0, LLOAD_1, LLOAD_2, LLOAD_3, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSTORE_0, LSTORE_1, LSTORE_2, LSTORE_3, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, STACK_GROW, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, WIDE
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Constructor Summary
Constructors Modifier Constructor Description protected
Expr(int pos, CodeIterator i, CtClass declaring, MethodInfo m)
Undocumented constructor.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected boolean
edited()
protected ConstPool
getConstPool()
CtClass
getEnclosingClass()
Returns the class that declares the method enclosing this expression.String
getFileName()
Returns the source file containing the expression.int
getLineNumber()
Returns the line number of the source line containing the expression.int
indexOfBytecode()
Returns the index of the bytecode corresponding to the expression.protected int
locals()
CtClass[]
mayThrow()
Returns the list of exceptions that the expression may throw.abstract void
replace(String statement)
Replaces this expression with the bytecode derived from the given source text.void
replace(String statement, ExprEditor recursive)
Replaces this expression with the bytecode derived from the given source text andExprEditor
.protected void
replace0(int pos, Bytecode bytecode, int size)
protected void
runEditor(ExprEditor ed, CodeIterator oldIterator)
protected int
stack()
CtBehavior
where()
Returns the constructor or method containing the expression.protected boolean
withinStatic()
Returns true if this method is static.
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Constructor Detail
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Expr
protected Expr(int pos, CodeIterator i, CtClass declaring, MethodInfo m)
Undocumented constructor. Do not use; internal-use only.
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Method Detail
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getEnclosingClass
public CtClass getEnclosingClass()
Returns the class that declares the method enclosing this expression.- Since:
- 3.7
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getConstPool
protected final ConstPool getConstPool()
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edited
protected final boolean edited()
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locals
protected final int locals()
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stack
protected final int stack()
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withinStatic
protected final boolean withinStatic()
Returns true if this method is static.
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where
public CtBehavior where()
Returns the constructor or method containing the expression.
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mayThrow
public CtClass[] mayThrow()
Returns the list of exceptions that the expression may throw. This list includes both the exceptions that the try-catch statements including the expression can catch and the exceptions that the throws declaration allows the method to throw.
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indexOfBytecode
public int indexOfBytecode()
Returns the index of the bytecode corresponding to the expression. It is the index into the byte array containing the Java bytecode that implements the method.
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getLineNumber
public int getLineNumber()
Returns the line number of the source line containing the expression.- Returns:
- -1 if this information is not available.
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getFileName
public String getFileName()
Returns the source file containing the expression.- Returns:
- null if this information is not available.
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replace
public abstract void replace(String statement) throws CannotCompileException
Replaces this expression with the bytecode derived from the given source text.- Parameters:
statement
- a Java statement except try-catch.- Throws:
CannotCompileException
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replace
public void replace(String statement, ExprEditor recursive) throws CannotCompileException
Replaces this expression with the bytecode derived from the given source text andExprEditor
.- Parameters:
statement
- a Java statement except try-catch.recursive
- if not null, the substituted bytecode is recursively processed by the givenExprEditor
.- Throws:
CannotCompileException
- Since:
- 3.1
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replace0
protected void replace0(int pos, Bytecode bytecode, int size) throws BadBytecode
- Throws:
BadBytecode
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runEditor
protected void runEditor(ExprEditor ed, CodeIterator oldIterator) throws CannotCompileException
- Throws:
CannotCompileException
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