Enum lamcalc::Error

pub enum Error {
    SimplifyLimitExceeded,
    ParseError(String),
    InvalidRule(String),
    RedexNotFound,
    InvalidRedex,
    InvalidDisplayExp,
}

Error type.

Variants

SimplifyLimitExceeded

化简次数超过了规定（有可能无限递归）

ParseError(String)

解析 lambda 表达式时出错

InvalidRule(String)

在创建 lambda 表达式时遇到无法处理的规则

RedexNotFound

找不到 beta redex

InvalidRedex

无效 redex

InvalidDisplayExp

无效表达式

Trait Implementations

impl Debug for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.