Function evaluate 

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

Will evaluate the value of the given DWARF expression.

Description:

• dwarf - A reference to gimli-rs Dwarf struct.
• unit - A compilation unit which contains the given DIE.
• pc - A machine code address, usually the current code location.
• expr - The expression to be evaluated.
• frame_base - The frame base address value.
• type_unit - A compilation unit which contains the given DIE which represents the type of the given expression. None if the expression does not have a type.
• type_die - The DIE the represents the type of the given expression. None if the expression does not have a type.
• registers - A register struct for accessing the register values.
• mem - A struct for accessing the memory of the debug target.

This function will first evaluate the expression into gimli-rs Pieces. Then it will use the pieces and the type too evaluate and parse the value.