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Use StaticVec for function resolution caches for the common case where no modules are used.

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Stephen Chung 2021-09-12 13:31:37 +08:00
parent 6e25354076
commit 6061439ede
1 changed files with 6 additions and 6 deletions
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12
src/engine.rs
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@ -662,18 +662,18 @@ pub struct EvalState {
pub num_operations: u64, pub num_operations: u64,
/// Number of modules loaded. /// Number of modules loaded.
pub num_modules: usize, pub num_modules: usize,
/// Stack of function resolution caches.
fn_resolution_caches: StaticVec<FnResolutionCache>,
/// Embedded module resolver. /// Embedded module resolver.
#[cfg(not(feature = "no_module"))] #[cfg(not(feature = "no_module"))]
pub embedded_module_resolver: Option<Shared<crate::module::resolvers::StaticModuleResolver>>, pub embedded_module_resolver: Option<Shared<crate::module::resolvers::StaticModuleResolver>>,
/// Stack of function resolution caches.
fn_resolution_caches: Vec<FnResolutionCache>,
} }
impl EvalState { impl EvalState {
/// Create a new [`EvalState`]. /// Create a new [`EvalState`].
#[inline(always)] #[inline(always)]
#[must_use] #[must_use]
pub const fn new() -> Self { pub fn new() -> Self {
Self { Self {
source: None, source: None,
always_search_scope: false, always_search_scope: false,
@ -682,7 +682,7 @@ impl EvalState {
num_modules: 0, num_modules: 0,
#[cfg(not(feature = "no_module"))] #[cfg(not(feature = "no_module"))]
embedded_module_resolver: None, embedded_module_resolver: None,
fn_resolution_caches: Vec::new(), fn_resolution_caches: StaticVec::new(),
} }
} }
/// Is the state currently at global (root) level? /// Is the state currently at global (root) level?
@ -697,7 +697,7 @@ impl EvalState {
pub fn fn_resolution_cache_mut(&mut self) -> &mut FnResolutionCache { pub fn fn_resolution_cache_mut(&mut self) -> &mut FnResolutionCache {
if self.fn_resolution_caches.is_empty() { if self.fn_resolution_caches.is_empty() {
// Push a new function resolution cache if the stack is empty // Push a new function resolution cache if the stack is empty
self.fn_resolution_caches.push(Default::default()); self.push_fn_resolution_cache();
} }
self.fn_resolution_caches self.fn_resolution_caches
.last_mut() .last_mut()
@ -713,7 +713,7 @@ impl EvalState {
/// ///
/// # Panics /// # Panics
/// ///
/// Panics if there are no more function resolution cache in the stack. /// Panics if there is no more function resolution cache in the stack.
#[inline(always)] #[inline(always)]
pub fn pop_fn_resolution_cache(&mut self) { pub fn pop_fn_resolution_cache(&mut self) {
self.fn_resolution_caches self.fn_resolution_caches