Struct CompiledJsonPath 

pub struct CompiledJsonPath {
    pub steps: Vec<JsonPathStep>,
}

A compiled SQL/JSON path expression.

Path expressions are compiled from string form (e.g., $.items[*].price) into a sequence of steps for evaluation against JSONB binary data.

Fields

steps: Vec<JsonPathStep>

Sequence of path steps.

Implementations

impl CompiledJsonPath

pub fn compile(path_str: &str) -> Result<Self, String>

Compiles a SQL/JSON path string.

Supported syntax

• $ — root element (must appear first)
• .key — object member access
• ["key"] — quoted member access
• [n] — array index (non-negative)
• [*] — wildcard array element

Errors

Returns an error if the path syntax is invalid.

pub fn evaluate<'a>(&self, jsonb: &'a [u8]) -> Vec<&'a [u8]>

Evaluates the compiled path against JSONB binary data.

Returns all matched sub-values as byte slices into the original data.

pub fn exists(&self, jsonb: &[u8]) -> bool

Returns true if evaluating this path against the JSONB data produces at least one match.

Trait Implementations

impl Clone for CompiledJsonPath

fn clone(&self) -> CompiledJsonPath

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CompiledJsonPath

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

Formats the value using the given formatter.

impl PartialEq for CompiledJsonPath

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for CompiledJsonPath