dnSpy.Debugger.DotNet.Interpreter Class implemented by the debugger. It provides access to the debugged process' locals, arguments, allows calling methods etc. Gets the size of a pointer in bytes Called before executing the method Method Method body Gets an argument value or returns null on failure Argument index Gets a local value or returns null on failure Local index Gets the address of an argument or returns null on failure Argument index Type of the argument Gets the address of a local or returns null on failure Local index Type of the local Writes to an argument or returns false on failure Argument index Type of the argument New value Writes to a local or returns false on failure Local index Type of the local New value Creates an SZ array or returns null on failure Element type Number of elements Creates a value or returns null on failure Type Creates a value or returns null on failure Field Creates a value or returns null on failure Method Creates a type without calling its constructor or returns null on failure. All fields are initialized to 0 or null depending on field type Type to create Boxes a value or returns null on failure Value to box Target type Calls a static method or returns false on failure Method to call Method arguments Return value. It's ignored if the method returns Creates a new instance and calls its constructor or returns null on failure. The constructor could be a CLR-generated array constructor Constructor Constructor arguments Calls a static method or returns false on failure Method address Method signature Method arguments Return value. It's ignored if the method returns Returns the value of a static field or returns null on failure Field Returns the address of a static field or returns null on failure Field Stores a value in a static field or returns false on failure Field Value to store in the field Returns a new string value String type String value. This is never null. Compares and , returning less than 0, 0 or greater than 0. This method is called if one of the inputs is a non-constant native int or by-ref. Left operand Right operand Compares and , returning less than 0, 0 or greater than 0. This method is called if one of the inputs is a non-constant native int or by-ref. Left operand Right operand Checks if equals or returns null on failure Left operand Right operand Gets the size of a value type Value type IL stack value kind 32-bit integer. 1-byte and 2-byte integers are sign/zero extended to 32 bits. Booleans and chars are zero extended. 64-bit integer 64-bit float (32-bit floats are extended to 64-bit floats) Unmanaged pointer or native int Managed pointer Any other reference type or value type A value that can be stored on the IL stack Gets the stack value kind true if this is a null value Makes a copy of this instance so the new instance can be pushed onto the stack. The default implementation returns itself. Only mutable value types need to override this method. Gets the type of the value or null if it's unknown, eg. it's a null reference Loads an instance field. Returns null if it's not supported. Field Stores a value in an instance field. Returns false if it's not supported. Field Value Returns the address of an instance field. Returns null if it's not supported. Field Calls an instance method. The method could be a CLR-generated method, eg. an array Address() method, see . Returns false if it's not supported. true if this is a virtual call, false if it's a non-virtual call Method Arguments. The hidden 'this' value isn't included, it's this instance. Updated with the return value. Can be null if the return type is Calls an instance method or returns false on failure Method address Method signature Method arguments Return value. It's ignored if the method returns Boxes this instance. Returns null if it's not supported. Target type Unboxes this instance. Returns null if it's not supported. Target type Unboxes this instance. Returns null if it's not supported. Target type Loads an SZ array element. Returns null if it's not supported. Type of value to load Array index Optional element type (eg. it's the ldelem instruction) Writes an SZ array element. Returns false if it's not supported. Type of value to store Index Value Optional element type (eg. it's the stelem instruction) Loads the address of an SZ array element. Returns null if it's not supported. Index Element type Gets the length of an SZ array. Returns false if it's not supported. Updated with the length of the array Loads a value. Returns null if it's not supported. Type Type of value to load Stores a value. Returns false if it's not supported. Type Type of value to store Value Clears the memory. Returns false if it's not supported. Type Copies to this value. Returns false if it's not supported. Type Source value Initializes memory. Returns false if it's not supported. Value to write Size of data Copies memory to this value. Returns false if it's not supported. Source value Size in bytes Adds a constant to a copy of this value and returns the result. Returns null if it's not supported. Opcode kind Value to add Size of a pointer in bytes Subtracts a constant from a copy of this value and returns the result. Returns null if it's not supported. Opcode kind Value to subtract Size of a pointer in bytes Subtracts from a copy of this value and returns the result. Returns null if it's not supported. Opcode kind Value to subtract Size of a pointer in bytes Converts this value to a new value. Returns null if it's not supported. Opcode kind Add opcode kind Normal addition Signed addition with an overflow check Unsigned addition with an overflow check Sub opcode kind Normal subtraction Signed subtraction with an overflow check Unsigned subtraction with an overflow check Convert opcode kind Convert to a Convert to a , signed, overflow check Convert to a , unsigned, overflow check Convert to a Convert to a , signed, overflow check Convert to a , unsigned, overflow check 32-bit integer. 1-byte, 2-byte and 4-byte integer values, booleans, and chars use this class. Smaller values are sign or zero extended. Always returns Gets the value Gets the value as a Constructor AppDomain Value Constructor Type, eg. Value Gets the type of the value ToString() 64-bit integer Always returns Gets the value Gets the value as a Constructor AppDomain Value Constructor Type, eg. Value Gets the type of the value ToString() 64-bit floating point value (32-bit floating point numbers are extended to 64 bits) Always returns Gets the value Constructor AppDomain Value Constructor Type, eg. Value Gets the type of the value ToString() native integer or unmanaged pointer Always returns native integer or unmanaged pointer Gets the value as a Gets the value as a Gets the value as a Gets the value as a Creates a 32-bit native int AppDomain Value Creates a 64-bit native int AppDomain Value Creates a 32-bit native int Type, eg. Value Creates a 64-bit native int Type, eg. Value Constructor AppDomain Value Constructor AppDomain Value Constructor Type, eg. Value Constructor Type, eg. Value Gets the type of the value ToString() Function pointer, created by the ldftn/ldvirtftn instructions true if it was created by a ldvirtftn instruction, false it was created by a ldftn instruction Gets the this value if and only if this was created by a ldvirtftn instruction, otherwise it's null Gets the method Constructor (used by ldftn instruction) Method Constructor (used by ldvirtftn instruction) Method This object Gets the type of the value Pointer to a block of memory. Used by eg. localloc Constructor AppDomain Size of memory Adds a constant to a copy of this value and returns the result. Returns null if it's not supported. Opcode kind Value to add Size of a pointer in bytes Subtracts a constant from a copy of this value and returns the result. Returns null if it's not supported. Opcode kind Value to subtract Size of a pointer in bytes Loads a value. Returns null if it's not supported. Type Type of value to load Stores a value. Returns false if it's not supported. Type Type of value to store Value Initializes memory or returns false if it's not supported Value to write Size of data Copies memory to this value or returns false if it's not supported. Source value Size of data Gets the type of the value Managed pointer Always returns A reference type or a value type Always returns A null reference Returns true since it's a null value Constructor Gets the type of the value Interprets IL code and returns the result Creates state that can be passed in to Method to execute Interprets the IL instructions in the method body. All calls are handled by Debugger class that can call methods in the debugged process State created by State created by to speed up executing a method Creates instances Creates a new instance 1-byte opcode, xx 2-byte opcode, FE xx Interpreter exception Gets the exception kind Constructor Message Constructor Message Inner exception Thrown when too many instructions have been interpreted Returns Constructor Invalid method body, eg. last instruction isn't an unconditional branch instruction (eg. ret/throw) Returns Constructor Constructor Inner exception Unsupported IL instruction Returns Constructor Message Thrown when IL code is being interpreted and an error is detected. Constructor Error message Constructor Error message Other exception Contains a thrown exception value Gets the thrown value Constructor Thrown value