Class AstGlobalRead
java.lang.Object
com.ibm.wala.ssa.SSAInstruction
com.ibm.wala.ssa.SSAFieldAccessInstruction
com.ibm.wala.ssa.SSAGetInstruction
com.ibm.wala.cast.ir.ssa.AstGlobalRead
A read of a global variable denoted by a FieldReference
- Author:
- Julian Dolby (dolby@us.ibm.com)
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Nested Class Summary
Nested classes/interfaces inherited from class com.ibm.wala.ssa.SSAInstruction
SSAInstruction.IVisitor, SSAInstruction.Visitor
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Field Summary
Fields inherited from class com.ibm.wala.ssa.SSAInstruction
NO_INDEX
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptioncopyForSSA
(SSAInstructionFactory insts, int[] defs, int[] uses) This method is meant to be used during SSA conversion for an IR that is not in SSA form.This method should never return null.boolean
toString
(SymbolTable symbolTable) void
Apply an IVisitor to this instruction.Methods inherited from class com.ibm.wala.ssa.SSAGetInstruction
getDef, getDef, getNumberOfDefs, getNumberOfUses, getUse, hasDef, hashCode
Methods inherited from class com.ibm.wala.ssa.SSAFieldAccessInstruction
getDeclaredField, getDeclaredFieldType, getRef, isPEI, isStatic
Methods inherited from class com.ibm.wala.ssa.SSAInstruction
equals, getValueString, iIndex, setInstructionIndex, toString
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Constructor Details
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AstGlobalRead
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Method Details
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copyForSSA
Description copied from class:SSAInstruction
This method is meant to be used during SSA conversion for an IR that is not in SSA form. It creates a new SSAInstruction of the same type as the receiver, with a combination of the receiver's uses and defs and those from the method parameters.In particular, if the 'defs' parameter is null, then the new instruction has the same defs as the receiver. If 'defs' is not null, it must be an array with a size equal to the number of defs that the receiver instruction has. In this case, the new instruction has defs taken from the array. The uses of the new instruction work in the same way with the 'uses' parameter.
Note that this only applies to CAst-based IR translation, since Java bytecode-based IR generation uses a different SSA construction mechanism.
TODO: move this into the SSAInstructionFactory
- Overrides:
copyForSSA
in classSSAGetInstruction
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toString
- Overrides:
toString
in classSSAGetInstruction
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visit
Description copied from class:SSAInstruction
Apply an IVisitor to this instruction. We invoke the appropriate IVisitor method according to the type of this instruction.- Overrides:
visit
in classSSAGetInstruction
- See Also:
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isFallThrough
public boolean isFallThrough()- Overrides:
isFallThrough
in classSSAGetInstruction
- Returns:
- true iff this instruction may fall through to the next
- See Also:
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getExceptionTypes
Description copied from class:SSAInstruction
This method should never return null.- Overrides:
getExceptionTypes
in classSSAInstruction
- Returns:
- the set of exception types that an instruction might throw ... disregarding athrows and invokes.
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getGlobalName
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