[librsvg: 10/32] Remove LoadingError::NoDataPassedToParser

[Federico Mena Quintero <federico src gnome org>]

commit f64096fbf6cd3eccfc9debc7976d07ba246aaf02
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Nov 25 12:55:45 2020 -0600

    Remove LoadingError::NoDataPassedToParser
    
    This was only for the C API, when the caller does handle_new() and
    then handle_close() without an intermediate handle_write().  Now the
    code returns an XmlParseError instead.

 src/c_api/handle.rs | 4 +++-
 src/error.rs        | 4 ----
 2 files changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/src/c_api/handle.rs b/src/c_api/handle.rs
index 5af0d92a..5573f3cb 100644
--- a/src/c_api/handle.rs
+++ b/src/c_api/handle.rs
@@ -766,7 +766,9 @@ impl CHandle {
         match *state {
             LoadState::Start => {
                 *state = LoadState::ClosedError;
-                Err(LoadingError::NoDataPassedToParser)
+                Err(LoadingError::XmlParseError(String::from(
+                    "caller did not write any data",
+                )))
             }
 
             LoadState::Loading { ref buffer } => {
diff --git a/src/error.rs b/src/error.rs
index 7d4da25d..4a2915a0 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -312,9 +312,6 @@ impl From<HrefError> for ValueErrorKind {
 /// all input/output.
 #[derive(Debug, Clone)]
 pub enum LoadingError {
-    // FIXME: C API only
-    NoDataPassedToParser,
-
     /// XML syntax error.
     XmlParseError(String),
 
@@ -360,7 +357,6 @@ impl error::Error for LoadingError {}
 impl fmt::Display for LoadingError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match *self {
-            LoadingError::NoDataPassedToParser => write!(f, "no data passed to parser"),
             LoadingError::XmlParseError(ref s) => write!(f, "XML parse error: {}", s),
             LoadingError::OutOfMemory(ref s) => write!(f, "out of memory: {}", s),
             LoadingError::CouldNotCreateXmlParser => write!(f, "could not create XML parser"),