except_plugin/core/
null_pointer.rs

1//! # NullPointerException
2//! 在Rust中平时不会出现空指针异常，当使用Option设定时存在None，这里就是指代None的情况
3//! ```txt
4//! @author:syf20020816@Outlook.com
5//! @date:2023/8/13
6//! @version:0.0.1
7//! @description:
8//! ```
9use std::time::{SystemTime,Duration,UNIX_EPOCH};
10use std::error::Error;
11use std::path::{PathBuf};
12use std::fmt::{Debug, Display, Formatter};
13use super::{SuperBuilderImpl, ExceptionLevel, NewFrom, FromBuilder, CommonParamImpl, TargetParamImpl, Exception, Exceptions, NullPointerExceptionBuilder, NULL_POINTER_MSG, ExceptionCode, DerefException};
14use crate::{display_err_impl, exception_impl, common_param_impl, target_param_impl};
15
16/// # NullPointerException
17/// - code: exception code
18/// - msg: exception msg
19/// - line: error line
20/// - path: error file path
21/// - level: exception level
22/// - target: null pointer target
23#[derive(Debug, Clone, PartialEq)]
24pub struct NullPointerException {
25    code: u32,
26    msg: String,
27    line: u32,
28    path: PathBuf,
29    level: ExceptionLevel,
30    target: Option<String>,
31    timestamp: Duration,
32}
33
34impl Default for NullPointerException {
35    fn default() -> Self {
36        NullPointerException {
37            code: ExceptionCode::NULL_POINTER,
38            msg: String::from(NULL_POINTER_MSG),
39            line: 0,
40            path: PathBuf::new(),
41            level: ExceptionLevel::Info,
42            target: None,
43            timestamp: SystemTime::now().duration_since(UNIX_EPOCH).unwrap(),
44        }
45    }
46}
47
48impl NewFrom for NullPointerException {
49    type Builder = NullPointerExceptionBuilder;
50    fn new() -> Self::Builder {
51        NullPointerExceptionBuilder::new()
52    }
53    fn from_super(e: Box<dyn Exception>) -> Self where Self: Sized {
54        NullPointerException {
55            code: e.code(),
56            msg: String::from(e.msg()),
57            level: e.level(),
58            path: PathBuf::new(),
59            line: 0,
60            target: None,
61            timestamp: e.timestamp()
62        }
63    }
64}
65
66impl FromBuilder for NullPointerException {
67    type Input = NullPointerExceptionBuilder;
68    type Output = NullPointerException;
69    fn from_builder(builder: &Self::Input) -> Self::Output {
70        Self::Output {
71            code: builder.code(),
72            msg: String::from(builder.msg()),
73            level: builder.level(),
74            line: builder.line(),
75            path: builder.path(),
76            target: Some(builder.target().to_string()),
77            timestamp: builder.timestamp()
78        }
79    }
80}
81
82display_err_impl!(NullPointerException);
83
84exception_impl!(NullPointerException,Exceptions::NullPointer);
85
86common_param_impl!(NullPointerException);
87
88target_param_impl!(NullPointerException);
89
90impl DerefException for NullPointerException {
91    fn deref_mut_exception(&mut self) -> Self {
92        NullPointerException {
93            code: self.code(),
94            msg: String::from(self.msg()),
95            line: self.line(),
96            path: self.path(),
97            level: self.level(),
98            target: Some(self.target().to_string()),
99            timestamp: self.timestamp()
100        }
101    }
102}
103
except_plugin/core/null_pointer.rs

except_plugin/core/
null_pointer.rs
