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use std::fmt::Debug;
use crate::Predicate;
#[derive(Copy, Clone, PartialEq, Debug)]
pub enum Type {
INT,
}
pub fn get_type_length(t: Type) -> usize {
match t {
Type::INT => 4,
}
}
#[derive(PartialEq, Debug, Clone)]
pub struct FieldItem {
pub field_type: Type,
pub field_name: String,
}
#[derive(Copy, Clone, PartialEq, Eq, Ord, Debug, PartialOrd)]
pub struct IntField {
pub value: i32,
}
impl IntField {
pub fn new(v: i32) -> IntField {
IntField { value: v }
}
pub fn len(&self) -> usize {
4
}
pub fn satisfy(&self, predicate: &Predicate) -> bool {
match predicate.op {
crate::Op::Equals => self.value == predicate.field.value,
crate::Op::GreaterThan => self.value > predicate.field.value,
crate::Op::LessThan => self.value < predicate.field.value,
crate::Op::LessThanOrEq => self.value <= predicate.field.value,
crate::Op::GreaterThanOrEq => self.value >= predicate.field.value,
crate::Op::Like => todo!(),
crate::Op::NotEquals => self.value != predicate.field.value,
}
}
}