Struct juniper::Spanning

pub struct Spanning<T> {
    pub item: T,
    pub start: SourcePosition,
    pub end: SourcePosition,
}

Data structure used to wrap items with start and end markers in the input source

A “span” is a range of characters in the input source, starting at the character pointed by the start field and ending just before the end marker.

Fields

item: T

The wrapped item

start: SourcePosition

Start position of the item

end: SourcePosition

End position of the item

This points to the first source position after the wrapped item.

Implementations

impl<T> Spanning<T>

pub fn map<O: Debug, F: Fn(T) -> O>(self, f: F) -> Spanning<O>

Modify the contents of the spanned item

Trait Implementations

impl<T: Clone> Clone for Spanning<T>

fn clone(&self) -> Spanning<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Spanning<T>

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

Formats the value using the given formatter.

impl<T: Display> Display for Spanning<T>

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

Formats the value using the given formatter.

impl<T: Error> Error for Spanning<T>

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.

impl<'a> From<Spanning<ParseError<'a>>> for GraphQLError<'a>

fn from(f: Spanning<ParseError<'a>>) -> GraphQLError<'a>

Converts to this type from the input type.

impl<T: Hash> Hash for Spanning<T>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: PartialEq> PartialEq<Spanning<T>> for Spanning<T>

fn eq(&self, other: &Spanning<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

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

impl<'a> Serialize for Spanning<ParseError<'a>>

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where
    S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Copy> Copy for Spanning<T>

impl<T: Eq> Eq for Spanning<T>

impl<T> StructuralEq for Spanning<T>

impl<T> StructuralPartialEq for Spanning<T>