Verify every dependency is required (#65)

If not, the generated code will not work

Fixes #64

Author: mart-e

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Update the resulting binary name (#62)
 
 ### Fixed
+- Verify the required options are provided (#65)
 
 ### Removed
 

src/main.rs

@@ -83,6 +83,13 @@ impl GeneratorOptionItem {
             GeneratorOptionItem::Option(option) => option.chips,
         }
     }
+
+    fn enables(&self) -> &[&str] {
+        match self {
+            GeneratorOptionItem::Category(_) => &[],
+            GeneratorOptionItem::Option(option) => option.enables,
+        }
+    }
 }
 
 static OPTIONS: &[GeneratorOptionItem] = &[
@@ -469,6 +476,18 @@ fn process_options(args: &Args) {
                 );
                 process::exit(-1);
             }
+            if !option_item
+                .enables()
+                .iter()
+                .all(|requirement| args.option.contains(&requirement.to_string()))
+            {
+                log::error!(
+                    "Option '{}' requires {}",
+                    option_item.name(),
+                    option_item.enables().join(", ")
+                );
+                process::exit(-1);
+            }
         }
     }
 }