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Add custom state.

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This commit is contained in:
Stephen Chung
2022-05-02 00:03:45 +08:00
parent 98e0042214
commit c69f98c2c4
13 changed files with 91 additions and 46 deletions
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7
src/eval/global_state.rs
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@@ -1,6 +1,6 @@
//! Global runtime state.
use crate::{Engine, Identifier};
use crate::{Dynamic, Engine, Identifier};
#[cfg(feature = "no_std")]
use std::prelude::v1::*;
use std::{fmt, marker::PhantomData};
@@ -9,7 +9,7 @@ use std::{fmt, marker::PhantomData};
#[cfg(not(feature = "no_module"))]
#[cfg(not(feature = "no_function"))]
pub type GlobalConstants =
crate::Shared<crate::Locked<std::collections::BTreeMap<Identifier, crate::Dynamic>>>;
crate::Shared<crate::Locked<std::collections::BTreeMap<Identifier, Dynamic>>>;
/// _(internals)_ Global runtime states.
/// Exported under the `internals` feature only.
@@ -64,6 +64,8 @@ pub struct GlobalRuntimeState<'a> {
#[cfg(not(feature = "no_module"))]
#[cfg(not(feature = "no_function"))]
pub constants: Option<GlobalConstants>,
/// Custom state that can be used by the external host.
pub tag: Dynamic,
/// Debugging interface.
#[cfg(feature = "debugging")]
pub debugger: super::Debugger,
@@ -95,6 +97,7 @@ impl GlobalRuntimeState<'_> {
#[cfg(not(feature = "no_module"))]
#[cfg(not(feature = "no_function"))]
constants: None,
tag: Dynamic::UNIT,
#[cfg(feature = "debugging")]
debugger: crate::eval::Debugger::new(_engine),
dummy: PhantomData::default(),