validate that a package being published doesn't conflict with keywords

Cargo.lock

@@ -1222,6 +1222,7 @@ dependencies = [
  "leo-imports",
  "leo-input",
  "leo-package",
+ "leo-parser",
  "leo-state",
  "leo-synthesizer",
  "notify",

Cargo.toml

@@ -61,6 +61,10 @@ version = "1.5.2"
 path = "./package"
 version = "1.5.2"
 
+[dependencies.leo-parser]
+path = "./parser"
+version = "1.5.2"
+
 [dependencies.leo-state]
 path = "./state"
 version = "1.5.2"

leo/commands/package/publish.rs

@@ -20,6 +20,7 @@ use leo_package::{
     outputs::OutputsDirectory,
     root::{ZipFile, AUTHOR_PLACEHOLDER},
 };
+use leo_parser::KEYWORD_TOKENS;
 
 use anyhow::{anyhow, Result};
 use structopt::StructOpt;
@@ -47,6 +48,10 @@ impl Command for Publish {
         let manifest = context.manifest()?;
 
         let package_name = manifest.get_package_name();
+        if KEYWORD_TOKENS.iter().any(|keyword| keyword.to_string() == package_name) {
+            return Err(anyhow!("Cannot name a package after a keyword"));
+        }
+
         let package_version = manifest.get_package_version();
 
         match (

parser/src/lib.rs

@@ -25,6 +25,7 @@
 extern crate thiserror;
 
 pub(crate) mod tokenizer;
+pub use tokenizer::KEYWORD_TOKENS;
 pub(crate) use tokenizer::*;
 
 pub mod errors;

parser/src/tokenizer/mod.rs

@@ -22,6 +22,7 @@
 pub(crate) mod token;
 use std::sync::Arc;
 
+pub use self::token::KEYWORD_TOKENS;
 pub(crate) use self::token::*;
 
 pub(crate) mod lexer;