Function call_evaluate 

pub fn call_evaluate<R: Reader<Offset = usize>, T: MemoryAccess>(
    dwarf: &Dwarf<R>,
    pc: u32,
    expr: Expression<R>,
    frame_base: Option<u64>,
    unit: &Unit<R>,
    die: &DebuggingInformationEntry<'_, '_, R>,
    registers: &Registers,
    mem: &mut T,
) -> Result<EvaluatorValue<R>>

Will find the DIE representing the type can evaluate the variable.

Description:

• dwarf - A reference to gimli-rs Dwarf struct.
• pc - A machine code address, usually the current code location.
• expr - The expression to be evaluated.
• frame_base - The frame base address value.
• unit - A compilation unit which contains the given DIE.
• die - The DIE the is used to find the DIE representing the type.
• registers - A register struct for accessing the register values.
• mem - A struct for accessing the memory of the debug target.

This function is used to find the DIE representing the type and then to evaluate the value of the given DIE>