refactor: replace SubplotError::JsonError with a more specific one

SubplotError::JsonError is a generic error, but we actually only parse
JSON when parsing the AST from Pandoc. Replace it with a ::AstJson
error to be more specific, and hopefully more helpful to the user.

Sponsored-by: author

1 files changed, 3 insertions, 10 deletions

diff --git a/src/error.rs b/src/error.rs
index 8fdaeee..a42298d 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -294,16 +294,9 @@ pub enum SubplotError {
     #[error("Failed to compile regular expression: {0:?}")]
     Regex(String, #[source] regex::Error),
 
-    /// JSON error
-    ///
-    /// Subplot parses and generates JSON. This is a generic wrapper
-    /// for any kinds of errors related to that.
-    #[error(transparent)]
-    JsonError {
-        /// The wrapped error.
-        #[from]
-        source: serde_json::Error,
-    },
+    /// Error parsing the Pandoc abstract syntax tree as JSON.
+    #[error("Failed to parse document AST as JSON")]
+    AstJson(#[source] serde_json::Error),
 
     /// Error parsing YAML metadata for document.
     #[error("Failed to parse YAML metadata")]