Struct ReusableBuilder 

pub struct ReusableBuilder { /* private fields */ }

A reusable string builder that can be reset and reused.

This is useful for building multiple queries in a loop without reallocating the buffer each time.

Example

use prax_query::builder::ReusableBuilder;

let mut builder = ReusableBuilder::with_capacity(256);

for i in 0..10 {
    builder.push("SELECT * FROM users WHERE id = ");
    builder.push(&i.to_string());
    let sql = builder.take(); // Take ownership without reallocating
    // Use sql...
    builder.reset(); // Clear for next iteration
}

Implementations

impl ReusableBuilder

pub fn new() -> Self

Create a new builder with default capacity.

pub fn with_capacity(capacity: usize) -> Self

Create with pre-allocated capacity.

pub fn push(&mut self, s: &str) -> &mut Self

Push a string slice.

pub fn push_char(&mut self, c: char) -> &mut Self

Push a single character.

pub fn push_fmt(&mut self, args: Arguments<'_>) -> &mut Self

Push formatted content.

pub fn space(&mut self) -> &mut Self

Push a space character.

pub fn comma(&mut self) -> &mut Self

Push a comma and space.

pub fn as_str(&self) -> &str

Get the current content as a slice.

pub fn len(&self) -> usize

Get the current length.

pub fn is_empty(&self) -> bool

Check if empty.

pub fn build(&self) -> String

Build and return a clone of the content.

pub fn take(&mut self) -> String

Take ownership of the buffer, leaving an empty string.

pub fn reset(&mut self)

Reset the builder for reuse, keeping capacity.

pub fn reset_shrink(&mut self)

Reset and shrink to initial capacity if grown significantly.

pub fn reserve(&mut self, additional: usize)

Reserve additional capacity.

pub fn capacity(&self) -> usize

Get the current capacity.

Trait Implementations

impl Clone for ReusableBuilder

fn clone(&self) -> ReusableBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReusableBuilder

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

Formats the value using the given formatter.

impl Default for ReusableBuilder

fn default() -> Self

Returns the “default value” for a type.

impl Display for ReusableBuilder

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

Formats the value using the given formatter.

impl From<ReusableBuilder> for String

fn from(builder: ReusableBuilder) -> String

Converts to this type from the input type.