kjuulh/rhai
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Refine auto_restore syntax.

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This commit is contained in:
Stephen Chung
2022-12-04 22:47:10 +08:00
parent 3163d9d1d6
commit e2bd0705b1
7 changed files with 64 additions and 32 deletions
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28
src/eval/stmt.rs
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@@ -41,8 +41,10 @@ impl Engine {
}
// Restore scope at end of block if necessary
let orig_scope_len = scope.len();
auto_restore!(scope; restore_orig_state => move |s| { s.rewind(orig_scope_len); });
auto_restore! {
scope if restore_orig_state => rewind;
let orig_scope_len = scope.len();
}
// Restore global state at end of block if necessary
let orig_always_search_scope = global.always_search_scope;
@@ -53,7 +55,7 @@ impl Engine {
global.scope_level += 1;
}
auto_restore!(global; restore_orig_state => move |g| {
auto_restore!(global if restore_orig_state => move |g| {
g.scope_level -= 1;
#[cfg(not(feature = "no_module"))]
@@ -65,8 +67,10 @@ impl Engine {
});
// Pop new function resolution caches at end of block
let orig_fn_resolution_caches_len = caches.fn_resolution_caches_len();
auto_restore!(caches => move |c| c.rewind_fn_resolution_caches(orig_fn_resolution_caches_len));
auto_restore! {
caches => rewind_fn_resolution_caches;
let orig_fn_resolution_caches_len = caches.fn_resolution_caches_len();
}
// Run the statements
statements.iter().try_fold(Dynamic::UNIT, |_, stmt| {
@@ -204,7 +208,7 @@ impl Engine {
#[cfg(feature = "debugging")]
let reset = self.run_debugger_with_reset(global, caches, scope, this_ptr, stmt)?;
#[cfg(feature = "debugging")]
auto_restore!(global; reset.is_some() => move |g| g.debugger_mut().reset_status(reset));
auto_restore!(global if reset.is_some() => move |g| g.debugger_mut().reset_status(reset));
// Coded this way for better branch prediction.
// Popular branches are lifted out of the `match` statement into their own branches.
@@ -515,8 +519,10 @@ impl Engine {
let iter_func = iter_func.ok_or_else(|| ERR::ErrorFor(expr.start_position()))?;
// Restore scope at end of statement
let orig_scope_len = scope.len();
auto_restore!(scope => move |s| { s.rewind(orig_scope_len); });
auto_restore! {
scope => rewind;
let orig_scope_len = scope.len();
}
// Add the loop variables
let counter_index = if counter.is_empty() {
usize::MAX
@@ -643,8 +649,10 @@ impl Engine {
};
// Restore scope at end of block
let orig_scope_len = scope.len();
auto_restore!(scope; !catch_var.is_empty() => move |s| { s.rewind(orig_scope_len); });
auto_restore! {
scope if !catch_var.is_empty() => rewind;
let orig_scope_len = scope.len();
}
if !catch_var.is_empty() {
scope.push(catch_var.name.clone(), err_value);