resolve clippy lints

src/builtin/mod.rs

@@ -49,6 +49,8 @@ impl PartialEq for Builtin {
     }
 }
 
+impl Eq for Builtin {}
+
 pub(crate) static GLOBAL_FUNCTIONS: Lazy<GlobalFunctionMap> = Lazy::new(|| {
     let mut m = HashMap::new();
     color::declare(&mut m);

src/parse/value/eval.rs

@@ -84,8 +84,8 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
             Op::Rem => self.rem(val1, val2)?,
             Op::And => Self::and(val1, val2)?,
             Op::Or => Self::or(val1, val2)?,
-            Op::Equal => self.equal(val1, val2),
-            Op::NotEqual => self.not_equal(val1, val2),
+            Op::Equal => Self::equal(val1, val2),
+            Op::NotEqual => Self::not_equal(val1, val2),
             Op::GreaterThan => self.greater_than(val1, val2)?,
             Op::GreaterThanEqual => self.greater_than_or_equal(val1, val2)?,
             Op::LessThan => self.less_than(val1, val2)?,
@@ -672,7 +672,7 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
         Ok(if left.is_true() { left } else { right })
     }
 
-    pub fn equal(&self, left: HigherIntermediateValue, right: HigherIntermediateValue) -> Value {
+    pub fn equal(left: HigherIntermediateValue, right: HigherIntermediateValue) -> Value {
         let left = match left {
             HigherIntermediateValue::Literal(v) => v,
             v => panic!("{:?}", v),
@@ -684,7 +684,7 @@ impl<'a, 'b: 'a> ValueVisitor<'a, 'b> {
         Value::bool(left.equals(&right))
     }
 
-    fn not_equal(&self, left: HigherIntermediateValue, right: HigherIntermediateValue) -> Value {
+    fn not_equal(left: HigherIntermediateValue, right: HigherIntermediateValue) -> Value {
         let left = match left {
             HigherIntermediateValue::Literal(v) => v,
             v => panic!("{:?}", v),

src/value/map.rs

@@ -1,4 +1,9 @@
-use std::{collections::HashSet, slice::Iter, vec::IntoIter};
+use std::{
+    collections::HashSet,
+    hash::{Hash, Hasher},
+    slice::Iter,
+    vec::IntoIter,
+};
 
 use crate::{
     common::{Brackets, ListSeparator},
@@ -6,7 +11,7 @@ use crate::{
     value::Value,
 };
 
-#[derive(Debug, Clone, Hash)]
+#[derive(Debug, Clone)]
 pub(crate) struct SassMap(Vec<(Value, Value)>);
 
 impl PartialEq for SassMap {
@@ -19,6 +24,12 @@ impl PartialEq for SassMap {
 
 impl Eq for SassMap {}
 
+impl Hash for SassMap {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.0.hash(state)
+    }
+}
+
 impl SassMap {
     pub const fn new() -> SassMap {
         SassMap(Vec::new())
@@ -26,7 +37,7 @@ impl SassMap {
 
     pub fn get(self, key: &Value) -> SassResult<Option<Value>> {
         for (k, v) in self.0 {
-            if k.equals(&key) {
+            if k.equals(key) {
                 return Ok(Some(v));
             }
         }

src/value/mod.rs

@@ -257,7 +257,7 @@ impl Value {
             },
             Value::Dimension(n, unit) => match other {
                 Value::Dimension(n2, unit2) => {
-                    if !unit.comparable(&unit2) {
+                    if !unit.comparable(unit2) {
                         false
                     } else if unit == unit2 {
                         n == n2
@@ -277,7 +277,7 @@ impl Value {
                     if sep1 != sep2 || brackets1 != brackets2 || list1.len() != list2.len() {
                         false
                     } else {
-                        for (a, b) in list1.into_iter().zip(list2) {
+                        for (a, b) in list1.iter().zip(list2) {
                             if !a.equals(b) {
                                 return false;
                             }
@@ -299,7 +299,7 @@ impl Value {
             },
             Value::Dimension(n, unit) => match other {
                 Value::Dimension(n2, unit2) => {
-                    if !unit.comparable(&unit2) {
+                    if !unit.comparable(unit2) {
                         true
                     } else if unit == unit2 {
                         n != n2

src/value/sass_function.rs

@@ -22,7 +22,7 @@ use crate::{
 ///
 /// The function name is stored in addition to the body
 /// for use in the builtin function `inspect()`
-#[derive(Clone, Hash)]
+#[derive(Clone, Eq, PartialEq, Hash)]
 pub(crate) enum SassFunction {
     Builtin(Builtin, Identifier),
     UserDefined(Box<Function>, Identifier),
@@ -64,20 +64,3 @@ impl fmt::Debug for SassFunction {
             .finish()
     }
 }
-
-impl PartialEq for SassFunction {
-    fn eq(&self, other: &Self) -> bool {
-        match self {
-            Self::UserDefined(f, ..) => match other {
-                Self::UserDefined(f2, ..) => f == f2,
-                Self::Builtin(..) => false,
-            },
-            Self::Builtin(f, ..) => match other {
-                Self::UserDefined(..) => false,
-                Self::Builtin(f2, ..) => f == f2,
-            },
-        }
-    }
-}
-
-impl Eq for SassFunction {}