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DataClause

Enum DataClause 

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pub enum DataClause {
    Set(Vec<Assignment>),
    Unset(Vec<Spanned<Idiom>>),
    Content(Spanned<Expr>),
    Merge(Spanned<Expr>),
    Patch(Spanned<Expr>),
    Replace(Spanned<Expr>),
    Single(Spanned<Expr>),
    Partial(PartialNode),
}
Expand description

A mutation’s payload clause.

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Set(Vec<Assignment>)

SET a = 1, b = 2 — per-field assignments.

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Unset(Vec<Spanned<Idiom>>)

UNSET a, b — fields to remove.

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Content(Spanned<Expr>)

CONTENT <expr> — replace the row with the object.

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Merge(Spanned<Expr>)

MERGE <expr> — shallow-merge the object into the row.

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Patch(Spanned<Expr>)

PATCH <expr> — apply a JSON-patch array.

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Replace(Spanned<Expr>)

REPLACE <expr> — overwrite the row with the object.

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Single(Spanned<Expr>)

A bare value payload (e.g. INSERT INTO t $object).

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Partial(PartialNode)

A payload clause that failed to lower.

Trait Implementations§

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impl Clone for DataClause

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fn clone(&self) -> DataClause

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for DataClause

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

Formats the value using the given formatter. Read more
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impl PartialEq for DataClause

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for DataClause

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.