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Reduce size of Engine.

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This commit is contained in:
Stephen Chung
2022-11-24 22:58:42 +08:00
parent cefe3f1715
commit 2bf8e610a3
18 changed files with 168 additions and 78 deletions
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57
src/api/custom_syntax.rs
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@@ -12,7 +12,7 @@ use crate::{
};
#[cfg(feature = "no_std")]
use std::prelude::v1::*;
use std::{borrow::Borrow, ops::Deref};
use std::{borrow::Borrow, collections::BTreeMap, ops::Deref};
/// Collection of special markers for custom syntax definition.
pub mod markers {
@@ -257,19 +257,29 @@ impl Engine {
// Standard or reserved keyword/symbol not in first position
_ if !segments.is_empty() && token.is_some() => {
// Make it a custom keyword/symbol if it is disabled or reserved
if ((!self.disabled_symbols.is_empty() && self.disabled_symbols.contains(s))
if (self
.disabled_symbols
.as_ref()
.map_or(false, |m| m.contains(s))
|| token.map_or(false, |v| v.is_reserved()))
&& (self.custom_keywords.is_empty()
|| !self.custom_keywords.contains_key(s))
&& !self
.custom_keywords
.as_ref()
.map_or(false, |m| m.contains_key(s))
{
self.custom_keywords.insert(s.into(), None);
self.custom_keywords
.get_or_insert_with(|| BTreeMap::new().into())
.insert(s.into(), None);
}
s.into()
}
// Standard keyword in first position but not disabled
_ if segments.is_empty()
&& token.as_ref().map_or(false, Token::is_standard_keyword)
&& (self.disabled_symbols.is_empty() || !self.disabled_symbols.contains(s)) =>
&& !self
.disabled_symbols
.as_ref()
.map_or(false, |m| m.contains(s)) =>
{
return Err(LexError::ImproperSymbol(
s.to_string(),
@@ -283,12 +293,19 @@ impl Engine {
// Identifier in first position
_ if segments.is_empty() && is_valid_identifier(s) => {
// Make it a custom keyword/symbol if it is disabled or reserved
if (!self.disabled_symbols.is_empty() && self.disabled_symbols.contains(s))
|| token.map_or(false, |v| v.is_reserved())
&& self.custom_keywords.is_empty()
|| !self.custom_keywords.contains_key(s)
if self
.disabled_symbols
.as_ref()
.map_or(false, |m| m.contains(s))
|| (token.map_or(false, |v| v.is_reserved())
&& !self
.custom_keywords
.as_ref()
.map_or(false, |m| m.contains_key(s)))
{
self.custom_keywords.insert(s.into(), None);
self.custom_keywords
.get_or_insert_with(|| BTreeMap::new().into())
.insert(s.into(), None);
}
s.into()
}
@@ -373,14 +390,16 @@ impl Engine {
scope_may_be_changed: bool,
func: impl Fn(&mut EvalContext, &[Expression], &Dynamic) -> RhaiResult + SendSync + 'static,
) -> &mut Self {
self.custom_syntax.insert(
key.into(),
CustomSyntax {
parse: Box::new(parse),
func: Box::new(func),
scope_may_be_changed,
},
);
self.custom_syntax
.get_or_insert_with(|| BTreeMap::new().into())
.insert(
key.into(),
CustomSyntax {
parse: Box::new(parse),
func: Box::new(func),
scope_may_be_changed,
},
);
self
}
}