Package serp.bytecode
Class GetFieldInstruction
- java.lang.Object
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- serp.bytecode.Instruction
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- serp.bytecode.FieldInstruction
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- serp.bytecode.GetFieldInstruction
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- All Implemented Interfaces:
BCEntity
,VisitAcceptor
public class GetFieldInstruction extends FieldInstruction
Loads a value from a field onto the stack.- Author:
- Abe White
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
acceptVisit(BCVisitor visit)
Accept a visit from aBCVisitor
, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this one.int
getLogicalStackChange()
Return the logical number of stack positions changed by this instruction.int
getStackChange()
Return the number of stack positions this instruction pushes or pops during its execution.-
Methods inherited from class serp.bytecode.FieldInstruction
equalsInstruction, getField, getFieldDeclarerBC, getFieldDeclarerName, getFieldDeclarerType, getFieldIndex, getFieldName, getFieldType, getFieldTypeBC, getFieldTypeName, setField, setField, setField, setField, setField, setField, setField, setField, setFieldDeclarer, setFieldDeclarer, setFieldDeclarer, setFieldIndex, setFieldName, setFieldType, setFieldType, setFieldType
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Methods inherited from class serp.bytecode.Instruction
getByteIndex, getClassLoader, getCode, getLineNumber, getName, getOpcode, getPool, getProject, isValid
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Method Detail
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getLogicalStackChange
public int getLogicalStackChange()
Description copied from class:Instruction
Return the logical number of stack positions changed by this instruction. In other words, ignore weirdness with longs and doubles taking two stack positions.- Overrides:
getLogicalStackChange
in classInstruction
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getStackChange
public int getStackChange()
Description copied from class:Instruction
Return the number of stack positions this instruction pushes or pops during its execution.- Overrides:
getStackChange
in classInstruction
- Returns:
- 0 if the stack is not affected by this instruction, a positive number if it pushes onto the stack, and a negative number if it pops from the stack
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acceptVisit
public void acceptVisit(BCVisitor visit)
Description copied from interface:VisitAcceptor
Accept a visit from aBCVisitor
, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this one.- Specified by:
acceptVisit
in interfaceVisitAcceptor
- Overrides:
acceptVisit
in classInstruction
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