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// Internal utilities
pub(crate) mod param_cache;
mod small_cstr;
pub(crate) use param_cache::ParamIndexCache;
pub(crate) use small_cstr::SmallCString;
// Doesn't use any modern features or vtab stuff, but is only used by them.
mod sqlite_string;
pub(crate) use sqlite_string::{alloc, SqliteMallocString};
#[cfg(any(feature = "collation", feature = "functions", feature = "vtab"))]
pub(crate) unsafe extern "C" fn free_boxed_value<T>(p: *mut std::ffi::c_void) {
drop(Box::from_raw(p.cast::<T>()));
}
use crate::Result;
use std::ffi::CStr;
pub enum Named<'a> {
Small(SmallCString),
C(&'a CStr),
}
impl std::ops::Deref for Named<'_> {
type Target = CStr;
#[inline]
fn deref(&self) -> &CStr {
match self {
Named::Small(s) => s.as_cstr(),
Named::C(s) => s,
}
}
}
/// Database, table, column, collation, function, module, vfs name
pub trait Name: std::fmt::Debug {
/// As C string
fn as_cstr(&self) -> Result<Named<'_>>;
}
impl Name for &str {
fn as_cstr(&self) -> Result<Named<'_>> {
let ss = SmallCString::new(self)?;
Ok(Named::Small(ss))
}
}
impl Name for &CStr {
#[inline]
fn as_cstr(&self) -> Result<Named<'_>> {
Ok(Named::C(self))
}
}