# Interface: com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IECall IR statement used to represent calls to sub\-routines. Default [memory access information](#getMemoryAccessInfo()) is set to null to indicate it should be determined by the IR itself. ## Method: addSpoiledVariables - parameter: `spoiledVariables`, type: `java.util.List` Description: Use only if a dummy/failsafe prototype was set ## Method: getArgument - parameter: `index`, type: `int` - return type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` Description: Get the Nth argument of this ECall. This method is safe and will return null if the index is out of bounds. parameter: index: return: ## Method: getArguments - return type: `java.util.List` Description: Retrieve a read\-only list of arguments provided to this ECall. return: ## Method: getCallSite - return type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` ## Method: getCountOfArguments - return type: `int` Description: Retrieve the number of arguments. return: ## Method: getCountOfReturns - return type: `int` Description: Retrieve the number of return values. return: ## Method: getDynamicTargetCandidates - return type: `java.util.List` ## Method: getHintArgumentPointsToExternalMemory - parameter: `argIndex`, type: `int` - return type: `boolean` ## Method: getMemoryAccessInfo - return type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.MemoryAccessInfo` Description: return: ## Method: getNonReturning - return type: `java.lang.Boolean` Description: Indicate whether the call is non\-returning. Typically, a non\-returning call is a call terminating the program, or a call performing a long branch to another area of code, without the intention of returning to what would be the 'Normal' call return\-address \(that is, the subsequent instruction\). The value of this flag is normally computed internally, by the ECall itself. If this cannot be determined, the function returns null. return: ## Method: getPrototype - return type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IWildcardPrototype` ## Method: getReturnExpression - parameter: `index`, type: `int` - return type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` Description: Get the Nth return expression of this ECall. This method is safe and will return null if the index is out of bounds. parameter: index: return: ## Method: getReturnExpressions - return type: `java.util.List` Description: Retrieve a read\-only list of return expressions. In most cases, the list will return 0 or 1 arguments. return: ## Method: getReturnLocation - return type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` Description: Retrieve the return address for this call. The return address may be null if the call\-to\-sub is a regular call that returns at the subsequent instruction. return: the return address, possibly null ## Method: getSpoiledExpressions - return type: `java.util.List` Description: Retrieve a read\-only list of expressions spoiled by this ECall. return: ## Method: getStackPointerDeltaAfterExecution - return type: `int` ## Method: getStaticCallsite - return type: `com.pnfsoftware.jeb.core.units.code.asm.items.INativeMethodItem` ## Method: isFailsafePrototype - return type: `boolean` ## Method: isReturnExpressionUnused - return type: `boolean` Description: Retrieve a hint \(for the AST generator\) indicating whether the return value of this call, if any, appears to be used by subsequent instructions in the CFG. return: ## Method: isStaticCallsite - return type: `boolean` ## Method: isTentativeCall - return type: `boolean` ## Method: setCallsite - parameter: `callsite`, type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` ## Method: setFailsafePrototype - parameter: `enabled`, type: `boolean` ## Method: setHintArgumentPointsToExternalMemory - parameter: `argIndex`, type: `int` - parameter: `enabled`, type: `boolean` - return type: `boolean` ## Method: setMemoryAccessInfo - parameter: `info`, type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.MemoryAccessInfo` Description: parameter: info: ## Method: setNonReturning - parameter: `forcedNonReturning`, type: `java.lang.Boolean` Description: Force the value of the internal non\-returning flag to a custom value. parameter: forcedNonReturning: null to reset to the internal ECall's logic; else, true or false, which may allow some optimizers to perform better ## Method: setPrototype - parameter: `prototype`, type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IWildcardPrototype` - parameter: `failsafe`, type: `boolean` Description: Dangerous method, will be removed from API. The prototype compatibility with the current call attributes \(returns, params, etc.\) is not verified. parameter: prototype: parameter: failsafe: ## Method: setReturnExpression - parameter: `index`, type: `int` - parameter: `exp`, type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` Description: Update a return expression. parameter: index: the index must be valid, i.e. be in the \[0, count\_returns\) range else the method will throw parameter: exp: non\-null IRE ## Method: setReturnExpressionUnused - parameter: `enabled`, type: `boolean` Description: Set a hint \(for the AST generator\) indicating whether the return value of this call, if any, appears to be used by subsequent instructions in the CFG. parameter: enabled: ## Method: setReturnLocation - parameter: `loc`, type: `com.pnfsoftware.jeb.core.units.code.asm.decompiler.ir.IEGeneric` Description: Set the optional return location \(address\) for the call. Null means a normal call, i.e., the return address is the address that immediately follows the call. parameter: loc: the optional return address ## Method: setStackPointerDeltaAfterExecution - parameter: `delta`, type: `int` Description: Use only if a dummy/failsafe prototype was set ## Method: setTentativeCall - parameter: `enabled`, type: `boolean`