GrammarContext

cqlsh_rs::cql_lexer

Enum GrammarContext 

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pub enum GrammarContext {

Show 16 variants    Start,
    ExpectColumnList,
    ExpectTable,
    ExpectKeyspace,
    ExpectColumn,
    ExpectSetClause,
    ExpectQualifiedPart,
    ExpectType,
    ExpectOrderBy,
    ExpectOrderByColumn,
    ExpectValues,
    ExpectWithOption,
    ExpectConsistencyLevel,
    ExpectDescribeTarget,
    ExpectFilePath,
    General,

}
Expand description

Grammar context: what syntactic position we’re at, used to distinguish keywords from identifiers and to drive tab completion.

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Start

Start of statement — expecting a keyword like SELECT, INSERT, etc.

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ExpectColumnList

After SELECT — expecting column list, *, or DISTINCT.

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ExpectTable

After FROM / INTO / UPDATE / TABLE / INDEX ON — expecting a table name.

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ExpectKeyspace

After USE / KEYSPACE — expecting a keyspace name.

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ExpectColumn

After WHERE / AND / IF (conditions) — expecting a column name.

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ExpectSetClause

After SET (in UPDATE) — expecting column = value pairs.

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ExpectQualifiedPart

After a dot — expecting the second part of a qualified name.

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ExpectType

After a column/table type keyword — expecting a CQL type name.

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ExpectOrderBy

After ORDER — expecting BY.

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ExpectOrderByColumn

After ORDER BY — expecting column name.

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ExpectValues

After VALUES — expecting ( value_list ).

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ExpectWithOption

Inside WITH clause options.

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ExpectConsistencyLevel

After CONSISTENCY / SERIAL CONSISTENCY — expecting level name.

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ExpectDescribeTarget

After DESCRIBE / DESC — expecting sub-command or schema name.

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ExpectFilePath

After SOURCE / CAPTURE — expecting file path.

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General

General clause context (default within a statement body).

Trait Implementations§

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impl Clone for GrammarContext

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fn clone(&self) -> GrammarContext

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 GrammarContext

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for GrammarContext

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impl StructuralPartialEq for GrammarContext

Auto Trait 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
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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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type Output = T

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type Owned = T

The resulting type after obtaining ownership.
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impl<T, U> TryFrom<U> for 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
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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.
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fn vzip(self) -> V

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