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NormalizedBody

Struct NormalizedBody 

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pub struct NormalizedBody { /* private fields */ }
Expand description

A canonicalized statement-scope body.

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impl NormalizedBody

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pub const fn empty() -> Self

Sentinel for source-parse provisional records.

T4’s AST canonicalization pass overwrites this immediately after the source IR is assembled. Never serialized to plan output.

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pub fn from_raw_canonical(canonical_text: String) -> Self

Build a NormalizedBody from a pre-computed canonical text string.

Used by the PL/pgSQL and SQL body parsers in parse::builder::plpgsql which produce their own canonical form (whitespace-collapsed text or pg_query::normalize output) and need to inject it directly.

Callers are responsible for ensuring canonical_text is in the pgevolve canonical form (whitespace collapsed, keywords lowercased).

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pub fn from_sql(sql: &str) -> Result<Self, BodyError>

Canonicalize a body given its raw SQL text.

The body may be any complete SQL statement (SELECT, CREATE VIEW, etc.). Invalid SQL returns BodyError::Parse. If the deparser unexpectedly fails on a successfully-parsed tree, the original SQL is used as the canonical form (silent graceful degradation).

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pub fn canonical_text(&self) -> &str

The canonical text. Two bodies are equivalent iff their canonical texts are byte-equal.

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pub fn canonical_hash(&self) -> &[u8; 32]

BLAKE3 hash of the canonical text. Domain-separated with pgevolve-normalized-body-v1\n to avoid collisions with crate::plan::plan::PlanId hashes (pgevolve-plan-id-v1\n).

Not const fn: NormalizedBody is only constructed at runtime (via pg_query), so const would signal intent the type cannot fulfill.

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impl Clone for NormalizedBody

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fn clone(&self) -> NormalizedBody

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 NormalizedBody

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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<'de> Deserialize<'de> for NormalizedBody

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for NormalizedBody

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impl Hash for NormalizedBody

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for NormalizedBody

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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 Serialize for NormalizedBody

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

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for NormalizedBody

Auto Trait Implementations§

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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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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> 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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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.