replace impl_many! with impl_try_from

src/util.rs

@@ -6,20 +6,20 @@ use serde::{Deserialize, Serialize};
 use std::{fmt, path::Path};
 
 #[macro_export]
-macro_rules! impl_many {
-    ($trait:ident<$typ:ty> $fn_name:ident{
+macro_rules! impl_try_from {
+    ($typ:ty {
         $(
-            for $for:ty => |$var:ident| $code:expr
+            for $for:ty => |$arg:ident| $code:expr
         );*;
     }) => {
-        $(impl $trait<$typ> for $for {
+        $(impl TryFrom<$typ> for $for {
             type Error = anyhow::Error;
 
-            fn $fn_name($var: $typ) -> Result<Self> {
+            fn try_from($arg: $typ) -> Result<Self> {
                 $code
             }
         })*
-    }
+    };
 }
 
 /// read an scss file, replace all environment variable references within it and

src/value.rs

@@ -6,7 +6,7 @@ use regex::Regex;
 use serde::{Deserialize, Serialize};
 use std::{convert::TryFrom, fmt};
 
-use crate::impl_many;
+use crate::impl_try_from;
 
 #[derive(Clone, PartialEq, Deserialize, Serialize, derive_more::From)]
 pub struct PrimitiveValue(String);
@@ -32,21 +32,21 @@ impl std::str::FromStr for PrimitiveValue {
     }
 }
 
-impl_many!(TryFrom<PrimitiveValue> try_from {
+impl_try_from!(PrimitiveValue {
     for String => |x| x.as_string();
     for f64 => |x| x.as_f64();
     for bool => |x| x.as_bool();
 });
 
-impl From<i32> for PrimitiveValue {
-    fn from(x: i32) -> Self {
+impl From<bool> for PrimitiveValue {
+    fn from(x: bool) -> Self {
         PrimitiveValue(format!("{}", x))
     }
 }
 
-impl From<bool> for PrimitiveValue {
-    fn from(x: bool) -> Self {
-        PrimitiveValue(format!("{}", x))
+impl From<i32> for PrimitiveValue {
+    fn from(s: i32) -> Self {
+        PrimitiveValue(s.to_string())
     }
 }