[librsvg: 2/3] Comment on the extra block in to_computed_values so it doesn't get removed by accident.




commit 552a88a11036b4c9449dc1f00400b932eaf35041
Author: Federico Mena Quintero <federico mena gmail com>
Date:   Thu Feb 25 20:31:24 2021 +0000

    Comment on the extra block in to_computed_values
    so it doesn't get removed by accident.

 src/properties.rs | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/properties.rs b/src/properties.rs
index a0cc2886..a2b94ee4 100644
--- a/src/properties.rs
+++ b/src/properties.rs
@@ -550,6 +550,10 @@ impl SpecifiedValues {
     pub fn to_computed_values(&self, computed: &mut ComputedValues) {
         macro_rules! compute {
             ($name:ident, $field:ident) => {{
+                // This extra block --------^
+                // is so that prop_val will be dropped within the macro invocation;
+                // otherwise all the temporary values cause this function to use
+                // an unreasonably large amount of stack space.
                 let prop_val = self.get_property(PropertyId::$name);
                 if let ParsedProperty::$name(s) = prop_val {
                     computed.set_value(ComputedValue::$name(


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