Package com.ibm.wala.cast.ir.translator
Class AstTranslator.PreBasicBlock
- java.lang.Object
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- com.ibm.wala.cast.ir.translator.AstTranslator.PreBasicBlock
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- All Implemented Interfaces:
IBasicBlock<SSAInstruction>
,INodeWithNumber
,Iterable<SSAInstruction>
- Enclosing class:
- AstTranslator
protected static final class AstTranslator.PreBasicBlock extends Object implements INodeWithNumber, IBasicBlock<SSAInstruction>
basic block implementation used in the CFGs constructed during the IR-generating AST traversal
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Constructor Summary
Constructors Modifier Constructor Description protected
PreBasicBlock()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getFirstInstructionIndex()
Get the index of the first instruction in the basic block.int
getGraphNodeId()
A non-negative integer which serves as an identifier for this node in it's "dominant" graph.int
getLastInstructionIndex()
Get the index of the last instruction in the basic block.IMethod
getMethod()
int
getNumber()
Each basic block should have a unique number in its cfgboolean
isCatchBlock()
Return true if the basic block represents a catch block.boolean
isEntryBlock()
Return true if the basic block represents the unique entry block.boolean
isExitBlock()
Return true if the basic block represents the unique exit block.boolean
isHandlerBlock()
Iterator<SSAInstruction>
iterator()
void
setGraphNodeId(int number)
String
toString()
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.lang.Iterable
forEach, spliterator
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Method Detail
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getNumber
public int getNumber()
Description copied from interface:IBasicBlock
Each basic block should have a unique number in its cfg- Specified by:
getNumber
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- the basic block's number
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getGraphNodeId
public int getGraphNodeId()
Description copied from interface:INodeWithNumber
A non-negative integer which serves as an identifier for this node in it's "dominant" graph. Initially this number is -1; a NumberedGraph will set it to a non-negative value when this node is inserted into the graph- Specified by:
getGraphNodeId
in interfaceINodeWithNumber
- Returns:
- the identifier
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setGraphNodeId
public void setGraphNodeId(int number)
- Specified by:
setGraphNodeId
in interfaceINodeWithNumber
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getFirstInstructionIndex
public int getFirstInstructionIndex()
Description copied from interface:IBasicBlock
Get the index of the first instruction in the basic block. The value is an index into the instruction array that contains all the instructions for the method. If the result is < 0, the block has no instructions- Specified by:
getFirstInstructionIndex
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- the instruction index for the first instruction in the basic block.
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getLastInstructionIndex
public int getLastInstructionIndex()
Description copied from interface:IBasicBlock
Get the index of the last instruction in the basic block. The value is an index into the instruction array that contains all the instructions for the method. If the result is < 0, the block has no instructions- Specified by:
getLastInstructionIndex
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- the instruction index for the last instruction in the basic block
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isEntryBlock
public boolean isEntryBlock()
Description copied from interface:IBasicBlock
Return true if the basic block represents the unique entry block.- Specified by:
isEntryBlock
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- true if the basic block represents the unique entry block.
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isExitBlock
public boolean isExitBlock()
Description copied from interface:IBasicBlock
Return true if the basic block represents the unique exit block.- Specified by:
isExitBlock
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- true if the basic block represents the unique exit block.
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isHandlerBlock
public boolean isHandlerBlock()
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isCatchBlock
public boolean isCatchBlock()
Description copied from interface:IBasicBlock
Return true if the basic block represents a catch block.- Specified by:
isCatchBlock
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- true if the basic block represents a catch block.
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getMethod
public IMethod getMethod()
- Specified by:
getMethod
in interfaceIBasicBlock<SSAInstruction>
- Returns:
- governing method for this block
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iterator
public Iterator<SSAInstruction> iterator()
- Specified by:
iterator
in interfaceIterable<SSAInstruction>
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