fix bugs

Cargo.toml

@@ -1,10 +1,9 @@
 [package]
 name = "jsonpath-rust"
 description = "The library provides the basic functionality to find the set of the data according to the filtering query."
-version = "0.3.5"
+version = "0.4.0"
 authors = ["BorisZhguchev <zhguchev@gmail.com>"]
 edition = "2018"
-license = "MIT"
 license-file = "LICENSE"
 homepage = "https://github.com/besok/jsonpath-rust"
 repository = "https://github.com/besok/jsonpath-rust"

README.md

@@ -432,5 +432,6 @@ TBD
 
 ## How to update version
  - update files
+ - commit them
  - add tag `git tag -a v<Version> -m "message"`
  - git push origin <tag_name>

src/lib.rs

@@ -1195,7 +1195,7 @@ mod tests {
             .expect("the path is correct");
 
         let results = query.find_slice(&json);
-        let v = results.get(0).expect("to get value");
+        let v = results.first().expect("to get value");
 
         // V can be implicitly converted to &Value
         test_coercion(v);

src/path/json.rs

@@ -5,7 +5,7 @@ use serde_json::Value;
 /// The method expects to get a number on the right side and array or string or object on the left
 /// where the number of characters, elements or fields will be compared respectively.
 pub fn size(left: Vec<&Value>, right: Vec<&Value>) -> bool {
-    if let Some(Value::Number(n)) = right.get(0) {
+    if let Some(Value::Number(n)) = right.first() {
         if let Some(sz) = n.as_f64() {
             for el in left.iter() {
                 match el {
@@ -32,7 +32,7 @@ pub fn sub_set_of(left: Vec<&Value>, right: Vec<&Value>) -> bool {
     }
 
     if let Some(elems) = left.first().and_then(|e| e.as_array()) {
-        if let Some(Value::Array(right_elems)) = right.get(0) {
+        if let Some(Value::Array(right_elems)) = right.first() {
             if right_elems.is_empty() {
                 return false;
             }
@@ -65,7 +65,7 @@ pub fn any_of(left: Vec<&Value>, right: Vec<&Value>) -> bool {
         return false;
     }
 
-    if let Some(Value::Array(elems)) = right.get(0) {
+    if let Some(Value::Array(elems)) = right.first() {
         if elems.is_empty() {
             return false;
         }
@@ -98,7 +98,7 @@ pub fn regex(left: Vec<&Value>, right: Vec<&Value>) -> bool {
         return false;
     }
 
-    match right.get(0) {
+    match right.first() {
         Some(Value::String(str)) => {
             if let Ok(regex) = Regex::new(str) {
                 for el in left.iter() {
@@ -121,7 +121,7 @@ pub fn inside(left: Vec<&Value>, right: Vec<&Value>) -> bool {
         return false;
     }
 
-    match right.get(0) {
+    match right.first() {
         Some(Value::Array(elems)) => {
             for el in left.iter() {
                 if elems.contains(el) {
@@ -147,7 +147,7 @@ pub fn inside(left: Vec<&Value>, right: Vec<&Value>) -> bool {
 /// ensure the number on the left side is less the number on the right side
 pub fn less(left: Vec<&Value>, right: Vec<&Value>) -> bool {
     if left.len() == 1 && right.len() == 1 {
-        match (left.get(0), right.get(0)) {
+        match (left.first(), right.first()) {
             (Some(Value::Number(l)), Some(Value::Number(r))) => l
                 .as_f64()
                 .and_then(|v1| r.as_f64().map(|v2| v1 < v2))

src/path/top.rs

@@ -117,7 +117,7 @@ impl<'a> Path<'a> for FnPath {
                 _ => NoValue,
             };
 
-            match input.get(0) {
+            match input.first() {
                 Some(v) => match v {
                     NewValue(d) => take_len(d),
                     Slice(s, _) => take_len(s),