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