Package it.unive.lisa.program.cfg.statement

Class BinaryNativeCall

java.lang.Object

it.unive.lisa.program.cfg.statement.Statement

it.unive.lisa.program.cfg.statement.Expression

it.unive.lisa.program.cfg.statement.Call

it.unive.lisa.program.cfg.statement.NativeCall

it.unive.lisa.program.cfg.statement.BinaryNativeCall

All Implemented Interfaces:

ProgramPoint, CodeElement, Node<Statement,Edge,CFG>, java.lang.Comparable<Statement>

public abstract class BinaryNativeCall
extends NativeCall

A NativeCall with a exactly two arguments.

Field Summary

Fields inherited from class it.unive.lisa.program.cfg.statement.Statement

offset

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BinaryNativeCall(CFG cfg, CodeLocation location, java.lang.String constructName, Expression left, Expression right)	Builds the untyped native call, happening at the given location in the program.
protected	BinaryNativeCall(CFG cfg, CodeLocation location, java.lang.String constructName, Type staticType, Expression left, Expression right)	Builds the native call, happening at the given location in the program.

Method Summary

Modifier and Type	Method	Description
protected abstract <A extends AbstractState<A,H,V>,H extends HeapDomain<H>,V extends ValueDomain<V>> AnalysisState<A,H,V>	binarySemantics(AnalysisState<A,H,V> entryState, InterproceduralAnalysis<A,H,V> interprocedural, AnalysisState<A,H,V> leftState, SymbolicExpression leftExp, AnalysisState<A,H,V> rightState, SymbolicExpression rightExp)	Computes the semantics of the call, after the semantics of the parameters have been computed.
<A extends AbstractState<A,H,V>,H extends HeapDomain<H>,V extends ValueDomain<V>> AnalysisState<A,H,V>	callSemantics(AnalysisState<A,H,V> entryState, InterproceduralAnalysis<A,H,V> interprocedural, AnalysisState<A,H,V>[] computedStates, ExpressionSet<SymbolicExpression>[] params)	Computes the semantics of the call, after the semantics of all parameters have been computed.

Methods inherited from class it.unive.lisa.program.cfg.statement.NativeCall

equals, getConstructName, hashCode, toString

Methods inherited from class it.unive.lisa.program.cfg.statement.Call

accept, getParameters, semantics, setOffset

Methods inherited from class it.unive.lisa.program.cfg.statement.Expression

getDynamicType, getMetaVariables, getParentStatement, getRootStatement, getRuntimeTypes, getStaticType, setParentStatement, setRuntimeTypes

Methods inherited from class it.unive.lisa.program.cfg.statement.Statement

compareTo, getCFG, getLocation, getOffset, stopsExecution, throwsError

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BinaryNativeCall

protected BinaryNativeCall(CFG cfg,
                           CodeLocation location,
                           java.lang.String constructName,
                           Expression left,
                           Expression right)

Builds the untyped native call, happening at the given location in the program. The static type of this call is Untyped.

Parameters:

cfg - the cfg that this expression belongs to

location - the location where the expression is defined within the source file. If unknown, use null

constructName - the name of the construct invoked by this native call

left - the first parameter of this call

right - the second parameter of this call

BinaryNativeCall

protected BinaryNativeCall(CFG cfg,
                           CodeLocation location,
                           java.lang.String constructName,
                           Type staticType,
                           Expression left,
                           Expression right)

Builds the native call, happening at the given location in the program.

Parameters:

cfg - the cfg that this expression belongs to

location - the location where this expression is defined within the source file. If unknown, use null

constructName - the name of the construct invoked by this native call

staticType - the static type of this call

left - the first parameter of this call

right - the second parameter of this call

Method Detail

callSemantics

public final <A extends AbstractState<A,H,V>,H extends HeapDomain<H>,V extends ValueDomain<V>> AnalysisState<A,H,V> callSemantics(AnalysisState<A,H,V> entryState,
                                                                                                                                                                      InterproceduralAnalysis<A,H,V> interprocedural,
                                                                                                                                                                      AnalysisState<A,H,V>[] computedStates,
                                                                                                                                                                      ExpressionSet<SymbolicExpression>[] params)
                                                                                                                                                               throws SemanticException

Description copied from class: Call

Computes the semantics of the call, after the semantics of all parameters have been computed. Meta variables from the parameters will be forgotten after this call returns.

Specified by:

callSemantics in class Call

Type Parameters:

A - the type of AbstractState

H - the type of the HeapDomain

V - the type of the ValueDomain

Parameters:

entryState - the entry state of this call

interprocedural - the interprocedural analysis of the program to analyze

computedStates - the array of states chaining the parameters' semantics evaluation starting from entryState, namely computedState[i] corresponds to the state obtained by the evaluation of params[i] in the state computedState[i-1] (params[0] is evaluated in entryState)

params - the symbolic expressions representing the computed values of the parameters of this call

Returns:

the AnalysisState representing the abstract result of the execution of this call

Throws:

SemanticException - if something goes wrong during the computation

binarySemantics

protected abstract <A extends AbstractState<A,H,V>,H extends HeapDomain<H>,V extends ValueDomain<V>> AnalysisState<A,H,V> binarySemantics(AnalysisState<A,H,V> entryState,
                                                                                                                                                                              InterproceduralAnalysis<A,H,V> interprocedural,
                                                                                                                                                                              AnalysisState<A,H,V> leftState,
                                                                                                                                                                              SymbolicExpression leftExp,
                                                                                                                                                                              AnalysisState<A,H,V> rightState,
                                                                                                                                                                              SymbolicExpression rightExp)
                                                                                                                                                                       throws SemanticException

Computes the semantics of the call, after the semantics of the parameters have been computed. Meta variables from the parameters will be forgotten after this call returns.

Type Parameters:

A - the type of AbstractState

H - the type of the HeapDomain

V - the type of the ValueDomain

Parameters:

entryState - the entry state of this binary call

interprocedural - the interprocedural analysis of the program to analyze

leftState - the state obtained by evaluating left in entryState

leftExp - the symbolic expression representing the computed value of the first parameter of this call

rightState - the state obtained by evaluating right in leftState

rightExp - the symbolic expression representing the computed value of the second parameter of this call

Returns:

the AnalysisState representing the abstract result of the execution of this call

Throws:

SemanticException - if something goes wrong during the computation