Implement download tool

src/abstract_tree/tool.rs

@@ -7,6 +7,7 @@ use std::{
 };
 
 use rand::{random, thread_rng, Rng};
+use reqwest::blocking::get;
 use serde::{Deserialize, Serialize};
 use tree_sitter::Node;
 
@@ -17,6 +18,7 @@ pub enum Tool {
     // General
     Assert(Vec<Expression>),
     AssertEqual(Vec<Expression>),
+    Download(Expression),
     Help(Option<Expression>),
     Length(Expression),
     Output(Vec<Expression>),
@@ -87,6 +89,12 @@ impl AbstractTree for Tool {
 
                 Tool::AssertEqual(expressions)
             }
+            "download" => {
+                let expression_node = node.child(2).unwrap();
+                let expression = Expression::from_syntax_node(source, expression_node)?;
+
+                Tool::Download(expression)
+            }
             "help" => {
                 let child_node = node.child(2).unwrap();
                 let expression = if child_node.is_named() {
@@ -271,6 +279,13 @@ impl AbstractTree for Tool {
 
                 Ok(Value::Empty)
             }
+            Tool::Download(expression) => {
+                let value = expression.run(source, context)?;
+                let url = value.as_string()?;
+                let data = get(url)?.text()?;
+
+                Ok(Value::String(data))
+            }
             Tool::Length(expression) => {
                 let length = expression.run(source, context)?.as_list()?.len();
 

tree-sitter-dust/grammar.js

@@ -262,6 +262,7 @@ module.exports = grammar({
       // General
       'assert',
       'assert_equal',
+      'download',
       'help',
       'length',
       'output',

tree-sitter-dust/src/grammar.json

@@ -1074,6 +1074,10 @@
           "type": "STRING",
           "value": "assert_equal"
         },
+        {
+          "type": "STRING",
+          "value": "download"
+        },
         {
           "type": "STRING",
           "value": "help"

tree-sitter-dust/src/node-types.json

@@ -733,6 +733,10 @@
     "type": "columns",
     "named": false
   },
+  {
+    "type": "download",
+    "named": false
+  },
   {
     "type": "else",
     "named": false