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Add eval function.

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Stephen Chung
2020-03-19 19:53:42 +08:00
parent cc8ec12691
commit 6a6c5f30de
6 changed files with 229 additions and 93 deletions
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4
src/scope.rs
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@@ -71,7 +71,7 @@ impl<'a> Scope<'a> {
}
/// Add (push) a new variable to the Scope.
pub fn push<K: Into<Cow<'a, str>>, T: Any>(&mut self, name: K, value: T) {
pub fn push<K: Into<Cow<'a, str>>, T: Any + Clone>(&mut self, name: K, value: T) {
let value = value.into_dynamic();
// Map into constant expressions
@@ -91,7 +91,7 @@ impl<'a> Scope<'a> {
/// Constants propagation is a technique used to optimize an AST.
/// However, in order to be used for optimization, constants must be in one of the recognized types:
/// `INT` (default to `i64`, `i32` if `only_i32`), `f64`, `String`, `char` and `bool`.
pub fn push_constant<K: Into<Cow<'a, str>>, T: Any>(&mut self, name: K, value: T) {
pub fn push_constant<K: Into<Cow<'a, str>>, T: Any + Clone>(&mut self, name: K, value: T) {
let value = value.into_dynamic();
// Map into constant expressions