Skip to main content

VdbeProgram

Struct VdbeProgram 

Source
pub struct VdbeProgram { /* private fields */ }
Expand description

A finalized VDBE bytecode program ready for execution.

Implementations§

Source§

impl VdbeProgram

Source

pub fn ops(&self) -> &[VdbeOp]

The instruction sequence.

Source

pub fn len(&self) -> usize

Number of instructions.

Source

pub fn is_empty(&self) -> bool

Whether the program is empty.

Source

pub fn register_count(&self) -> i32

Number of registers required.

Source

pub fn max_bind_parameter_index(&self) -> Result<usize, i32>

Highest 1-based bind parameter index referenced by the program.

Returns Ok(0) when no Variable opcodes are present. Returns Err(raw_index) if the bytecode contains an invalid parameter index (<= 0 or not representable as usize).

Source

pub fn get(&self, pc: usize) -> Option<&VdbeOp>

Get the instruction at the given program counter.

Source

pub fn table_index_meta(&self) -> &HashMap<i32, Box<[IndexCursorMeta]>>

Table-to-index cursor metadata for REPLACE conflict resolution.

Source

pub fn has_insert_ops(&self) -> bool

Returns true if the program contains any Insert opcodes, meaning column defaults may be needed during execution. Precomputed at build time — O(1) at call time.

Source

pub fn disassemble(&self) -> String

Disassemble the program to a human-readable string.

Output format matches SQLite’s EXPLAIN output:

addr  opcode         p1    p2    p3    p4             p5
----  ----------     ----  ----  ----  -----          --
0     Init           0     8     0                    0

Trait Implementations§

Source§

impl Clone for VdbeProgram

Source§

fn clone(&self) -> VdbeProgram

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for VdbeProgram

Source§

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

Formats the value using the given formatter. Read more
Source§

impl PartialEq for VdbeProgram

Source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · 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.
Source§

impl StructuralPartialEq for VdbeProgram

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

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

Source§

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
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T> Instrument for T

Source§

fn instrument(self, _span: NoopSpan) -> Self

Instruments this future with a span (no-op when disabled).
Source§

fn in_current_span(self) -> Self

Instruments this future with the current span (no-op when disabled).
Source§

impl<T> Instrument for T

Source§

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> Pointable for T

Source§

const ALIGN: usize

The alignment of pointer.
Source§

type Init = T

The type for initializers.
Source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
Source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
Source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
Source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

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

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<T> WithSubscriber for T

Source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
Source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more