Migrate from js_sandbox to rustyscript

Cargo.toml

@@ -12,7 +12,7 @@ edition = "2021"
 
 [features]
 default = ["extensions", "crypto-functions", "encoding-functions"]
-extensions = ["js_playground"]
+extensions = ["rustyscript"]
 crypto-functions = ["md-5", "sha2"]
 encoding-functions = ["base64", "urlencoding"]
 
@@ -29,7 +29,7 @@ chrono = "0.4.23"
 rand = "0.8.5"
 
 # Feature deps
-js_playground = { git = "https://github.com/rscarson/js-playground.git", optional = true }
+rustyscript = { version = "0.1.1", optional = true }
 md-5 = { version = "0.10.5", optional = true }
 sha2 = { version = "0.10.6", optional = true }
 base64 = { version = "0.21.0", optional = true }

README.md

@@ -56,8 +56,7 @@ fn main() -> Result<(), Error> {
 
 A number of functions and @decorators are available for expressions to use - add more using the state:
 ```rust
-use lavendeux_parser::{ParserState, Error, DecoratorDefinition, FunctionDefinition, FunctionArgument, Value};
-use lavendeux_parser::Error;
+use lavendeux_parser::{ParserState, Error, DecoratorDefinition, FunctionDefinition, FunctionArgument, Value, ExpectedTypes};
 
 let mut state : ParserState = ParserState::new();
 state.decorators.register(DecoratorDefinition {
@@ -157,15 +156,15 @@ fn main() -> Result<(), Error> {
     let mut state : ParserState = ParserState::new();
 
     // Load one extension
-    state.extensions.load("example_extensions/colour_utils.js");
+    state.extensions.load("example_extensions/simple_extension.js");
 
-    // Load a whole directory - this will return a vec of Extension/Error results
+    // Load a whole directory - this will return a vec of Result<Extension, Error>
     state.extensions.load_all("./example_extensions");
 
     // Once loaded, functions and @decorators decribed in the extensions
     // can be called in expressions being parsed
-    let token = Token::new("complement(0xFF0000) @colour", &mut state)?;
-    assert_eq!(token.text(), "#ffff00");
+    let token = Token::new("add(1, 2) @colour", &mut state)?;
+    assert_eq!(token.text(), "#300000");
     Ok(())
 }
 ```