public class Indexer extends SpelNodeImpl
Supported structures are: strings / collections (lists/sets) / arrays.
children, exitTypeDescriptor
AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, 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, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V9
Constructor and Description |
---|
Indexer(int startPos,
int endPos,
SpelNodeImpl expr) |
Modifier and Type | Method and Description |
---|---|
void |
generateCode(MethodVisitor mv,
CodeFlow cf)
Generate the bytecode for this node into the supplied visitor.
|
TypedValue |
getValueInternal(ExpressionState state) |
protected ValueRef |
getValueRef(ExpressionState state) |
boolean |
isCompilable()
Check whether a node can be compiled to bytecode.
|
boolean |
isWritable(ExpressionState expressionState)
Determine if this expression node will support a setValue() call.
|
TypedValue |
setValueInternal(ExpressionState state,
Supplier<TypedValue> valueSupplier)
Evaluate the expression to a node and then set the new value created by the
specified
Supplier on that node. |
String |
toStringAST()
Return the string form of this AST node.
|
generateCodeForArgument, generateCodeForArguments, getChild, getChildCount, getEndPosition, getExitDescriptor, getObjectClass, getStartPosition, getTypedValue, getValue, getValue, nextChildIs, setValue
public Indexer(int startPos, int endPos, SpelNodeImpl expr)
public TypedValue getValueInternal(ExpressionState state) throws EvaluationException
getValueInternal
in class SpelNodeImpl
EvaluationException
public TypedValue setValueInternal(ExpressionState state, Supplier<TypedValue> valueSupplier) throws EvaluationException
SpelNodeImpl
Supplier
on that node.
For example, if the expression evaluates to a property reference, then the property will be set to the new value.
Favor this method over SpelNodeImpl.setValue(ExpressionState, Object)
when
the value should be lazily computed.
By default, this method throws a SpelEvaluationException
,
effectively disabling this feature. Subclasses may override this method to
provide an actual implementation.
setValueInternal
in class SpelNodeImpl
state
- the current expression state (includes the context)valueSupplier
- a supplier of the new valueEvaluationException
- if any problem occurs evaluating the expression or
setting the new valuepublic boolean isWritable(ExpressionState expressionState) throws SpelEvaluationException
SpelNode
isWritable
in interface SpelNode
isWritable
in class SpelNodeImpl
expressionState
- the current expression state (includes the context)SpelEvaluationException
protected ValueRef getValueRef(ExpressionState state) throws EvaluationException
getValueRef
in class SpelNodeImpl
EvaluationException
public boolean isCompilable()
SpelNodeImpl
isCompilable
in class SpelNodeImpl
true
if this node can be compiled to bytecodepublic void generateCode(MethodVisitor mv, CodeFlow cf)
SpelNodeImpl
generateCode
in class SpelNodeImpl
mv
- the ASM MethodVisitor into which code should be generatedcf
- a context object with info about what is on the stack