Struct jsonnet::JsonVal

pub struct JsonVal<'a> { /* fields omitted */ }

Rust wrapper for borrowed libjsonnet JSON values.

See JsonValue for the owned version.

Methods

impl<'a> JsonVal<'a>

unsafe fn from_ptr(vm: &'a JsonnetVm, p: *const JsonnetJsonValue) -> Self

Construct a JsonVal from a pointer returned from a low-level jsonnet C function.

Safety

It is up to the caller to ensure that p was indeed allocated by vm.

fn as_ptr(&self) -> *const JsonnetJsonValue

Returns the inner pointer to this jsonnet value.

The returned pointer will be valid for as long as self is.

fn as_str(&self) -> Option<&str>

Returns the value, if it is a string.

fn as_num(&self) -> Option<f64>

Returns the value, if it is a number.

fn as_bool(&self) -> Option<bool>

Returns the value, if it is a bool.

fn as_null(&self) -> Option<()>

Returns Some(()) if the value is null.