[librsvg: 2/8] filters - rename "in_" inputs to "in1"

[Federico Mena Quintero <federico src gnome org>]

commit 16b53804aa99cbf5679d23c320b15011210f0a07
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Mar 10 17:05:16 2021 -0600

    filters - rename "in_" inputs to "in1"
    
    Those are the first input, and sometimes the only one, to a primitive
    or sub-element.

 src/filters/merge.rs | 12 ++++++------
 src/filters/mod.rs   |  8 ++++----
 2 files changed, 10 insertions(+), 10 deletions(-)
---
diff --git a/src/filters/merge.rs b/src/filters/merge.rs
index de3b2a57..dbfcb07c 100644
--- a/src/filters/merge.rs
+++ b/src/filters/merge.rs
@@ -20,7 +20,7 @@ pub struct FeMerge {
 /// The `<feMergeNode>` element.
 #[derive(Clone, Debug, Default, PartialEq)]
 pub struct FeMergeNode {
-    in_: Option<Input>,
+    in1: Option<Input>,
 }
 
 impl Default for FeMerge {
@@ -42,7 +42,7 @@ impl SetAttributes for FeMerge {
 impl SetAttributes for FeMergeNode {
     #[inline]
     fn set_attributes(&mut self, attrs: &Attributes) -> ElementResult {
-        self.in_ = attrs
+        self.in1 = attrs
             .iter()
             .find(|(attr, _)| attr.expanded() == expanded_name!("", "in"))
             .and_then(|(attr, value)| attr.parse(value).ok());
@@ -62,7 +62,7 @@ impl FeMergeNode {
         bounds: IRect,
         output_surface: Option<SharedImageSurface>,
     ) -> Result<SharedImageSurface, FilterError> {
-        let input = ctx.get_input(acquired_nodes, draw_ctx, self.in_.as_ref())?;
+        let input = ctx.get_input(acquired_nodes, draw_ctx, self.in1.as_ref())?;
 
         if output_surface.is_none() {
             return Ok(input.surface().clone());
@@ -88,7 +88,7 @@ impl FilterRender for FeMerge {
         // Compute the filter bounds, taking each feMergeNode's input into account.
         let mut bounds = self.base.get_bounds(ctx)?;
         for merge_node in &parameters {
-            let input = ctx.get_input(acquired_nodes, draw_ctx, merge_node.in_.as_ref())?;
+            let input = ctx.get_input(acquired_nodes, draw_ctx, merge_node.in1.as_ref())?;
             bounds = bounds.add_input(&input);
         }
 
@@ -172,10 +172,10 @@ mod tests {
             &params[..],
             vec![
                 FeMergeNode {
-                    in_: Some(Input::SourceGraphic)
+                    in1: Some(Input::SourceGraphic)
                 },
                 FeMergeNode {
-                    in_: Some(Input::SourceAlpha)
+                    in1: Some(Input::SourceAlpha)
                 },
             ]
         );
diff --git a/src/filters/mod.rs b/src/filters/mod.rs
index 6a4c0e78..1c08c3a9 100644
--- a/src/filters/mod.rs
+++ b/src/filters/mod.rs
@@ -118,7 +118,7 @@ impl Parse for Input {
 /// The base node for filter primitives which accept input.
 struct PrimitiveWithInput {
     base: Primitive,
-    in_: Option<Input>,
+    in1: Option<Input>,
 }
 
 impl Primitive {
@@ -195,7 +195,7 @@ impl PrimitiveWithInput {
     fn new() -> PrimitiveWithInput {
         PrimitiveWithInput {
             base: Primitive::new(),
-            in_: None,
+            in1: None,
         }
     }
 
@@ -207,7 +207,7 @@ impl PrimitiveWithInput {
         acquired_nodes: &mut AcquiredNodes<'_>,
         draw_ctx: &mut DrawingCtx,
     ) -> Result<FilterInput, FilterError> {
-        ctx.get_input(acquired_nodes, draw_ctx, self.in_.as_ref())
+        ctx.get_input(acquired_nodes, draw_ctx, self.in1.as_ref())
     }
 }
 
@@ -215,7 +215,7 @@ impl SetAttributes for PrimitiveWithInput {
     fn set_attributes(&mut self, attrs: &Attributes) -> ElementResult {
         self.base.set_attributes(attrs)?;
 
-        self.in_ = attrs
+        self.in1 = attrs
             .iter()
             .find(|(attr, _)| attr.expanded() == expanded_name!("", "in"))
             .and_then(|(attr, value)| attr.parse(value).ok());