Struct Position 

pub struct Position {
    pub line: u32,
    pub column: u32,
    pub offset: u32,
}

源代码中的具体位置

Fields

line: u32

行号（从 1 开始）

column: u32

列号（从 1 开始，按 UTF-16 字符计数）

offset: u32

字节偏移量（从 0 开始）

Implementations

impl Position

pub fn new(line: u32, column: u32, offset: u32) -> Self

创建一个新的 Position

pub fn from_offset(offset: usize) -> Self

仅从字节偏移量创建位置（行列信息暂设为 0）

pub fn unknown() -> Self

创建一个表示未知位置的 Position

pub fn is_unknown(&self) -> bool

判断位置是否为未知

Trait Implementations

impl Clone for Position

fn clone(&self) -> Position

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Position

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

Formats the value using the given formatter.

impl Default for Position

fn default() -> Position

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Position

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Position

fn eq(&self, other: &Position) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Position

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Position

impl Eq for Position

impl StructuralPartialEq for Position