clippy: fix new_without_default

Signed-off-by: ljedrz <ljedrz@gmail.com>

compiler/src/import/parser/import_parser.rs

@@ -21,7 +21,7 @@ use std::{collections::HashMap, env::current_dir};
 
 /// Parses all relevant import files for a program.
 /// Stores compiled program structs.
-#[derive(Clone)]
+#[derive(Clone, Default)]
 pub struct ImportParser {
     imports: HashMap<String, Program>,
     core_packages: Vec<Package>,
@@ -29,10 +29,7 @@ pub struct ImportParser {
 
 impl ImportParser {
     pub fn new() -> Self {
-        Self {
-            imports: HashMap::new(),
-            core_packages: vec![],
-        }
+        Self::default()
     }
 
     pub(crate) fn insert_import(&mut self, file_name: String, program: Program) {

compiler/src/program/program.rs

@@ -27,6 +27,14 @@ pub struct ConstrainedProgram<F: Field + PrimeField, G: GroupType<F>> {
     pub identifiers: HashMap<String, ConstrainedValue<F, G>>,
 }
 
+impl<F: Field + PrimeField, G: GroupType<F>> Default for ConstrainedProgram<F, G> {
+    fn default() -> Self {
+        Self {
+            identifiers: HashMap::new(),
+        }
+    }
+}
+
 pub fn new_scope(outer: String, inner: String) -> String {
     format!("{}_{}", outer, inner)
 }
@@ -37,9 +45,7 @@ pub fn is_in_scope(current_scope: &String, desired_scope: &String) -> bool {
 
 impl<F: Field + PrimeField, G: GroupType<F>> ConstrainedProgram<F, G> {
     pub fn new() -> Self {
-        Self {
-            identifiers: HashMap::new(),
-        }
+        Self::default()
     }
 
     pub(crate) fn store(&mut self, name: String, value: ConstrainedValue<F, G>) {

package/src/inputs/pairs.rs

@@ -21,6 +21,7 @@ use crate::{
 
 use std::{collections::HashMap, convert::TryFrom, path::PathBuf};
 
+#[derive(Default)]
 pub struct InputPairs {
     /// Maps file names to input file pairs
     pub pairs: HashMap<String, InputPair>,
@@ -33,7 +34,7 @@ pub struct InputPair {
 
 impl InputPairs {
     pub fn new() -> Self {
-        Self { pairs: HashMap::new() }
+        Self::default()
     }
 }
 

package/src/root/gitignore.rs

@@ -23,12 +23,12 @@ use std::{fs::File, io::Write, path::PathBuf};
 
 pub static GITIGNORE_FILENAME: &str = ".gitignore";
 
-#[derive(Deserialize)]
+#[derive(Deserialize, Default)]
 pub struct Gitignore;
 
 impl Gitignore {
     pub fn new() -> Self {
-        Self
+        Self::default()
     }
 
     pub fn exists_at(path: &PathBuf) -> bool {

typed/src/input/input.rs

@@ -27,14 +27,20 @@ pub struct Input {
     program_state: ProgramState,
 }
 
-impl Input {
-    pub fn new() -> Self {
+impl Default for Input {
+    fn default() -> Self {
         Self {
             name: "default".to_owned(),
             program_input: ProgramInput::new(),
             program_state: ProgramState::new(),
         }
     }
+}
+
+impl Input {
+    pub fn new() -> Self {
+        Self::default()
+    }
 
     /// Returns an empty version of this struct with `None` values.
     /// Called during constraint synthesis to provide private input variables.

typed/src/input/macros.rs

@@ -19,7 +19,7 @@ macro_rules! input_section_impl {
     ($($name: ident), *) => ($(
 
         /// An input section declared in an input file with `[$name]`
-        #[derive(Clone, PartialEq, Eq)]
+        #[derive(Clone, PartialEq, Eq, Default)]
         pub struct $name {
             is_present: bool,
             values: HashMap<Parameter, Option<InputValue>>,
@@ -27,10 +27,7 @@ macro_rules! input_section_impl {
 
         impl $name {
             pub fn new() -> Self {
-                Self {
-                    is_present: false,
-                    values: HashMap::new(),
-                }
+                Self::default()
             }
 
             /// Returns an empty version of this struct with `None` values.

typed/src/input/program_input/main_input.rs

@@ -18,14 +18,14 @@ use crate::InputValue;
 use leo_input::{definitions::Definition, InputParserError};
 use std::collections::HashMap;
 
-#[derive(Clone, PartialEq, Eq)]
+#[derive(Clone, PartialEq, Eq, Default)]
 pub struct MainInput {
     input: HashMap<String, Option<InputValue>>,
 }
 
 impl MainInput {
     pub fn new() -> Self {
-        Self { input: HashMap::new() }
+        Self::default()
     }
 
     /// Returns an empty version of this struct with `None` values.

typed/src/input/program_input/program_input.rs

@@ -20,7 +20,7 @@ use leo_input::{
     InputParserError,
 };
 
-#[derive(Clone, PartialEq, Eq)]
+#[derive(Clone, PartialEq, Eq, Default)]
 pub struct ProgramInput {
     pub main: MainInput,
     registers: Registers,
@@ -28,10 +28,7 @@ pub struct ProgramInput {
 
 impl ProgramInput {
     pub fn new() -> Self {
-        Self {
-            main: MainInput::new(),
-            registers: Registers::new(),
-        }
+        Self::default()
     }
 
     /// Returns an empty version of this struct with `None` values.

typed/src/input/program_state/private_state/private_state.rs

@@ -20,7 +20,7 @@ use leo_input::{
     InputParserError,
 };
 
-#[derive(Clone, PartialEq, Eq)]
+#[derive(Clone, PartialEq, Eq, Default)]
 pub struct PrivateState {
     record: Record,
     state_leaf: StateLeaf,
@@ -28,10 +28,7 @@ pub struct PrivateState {
 
 impl PrivateState {
     pub fn new() -> Self {
-        Self {
-            record: Record::new(),
-            state_leaf: StateLeaf::new(),
-        }
+        Self::default()
     }
 
     /// Returns an empty version of this struct with `None` values.

typed/src/input/program_state/program_state.rs

@@ -20,7 +20,7 @@ use leo_input::{
     InputParserError,
 };
 
-#[derive(Clone, PartialEq, Eq)]
+#[derive(Clone, PartialEq, Eq, Default)]
 pub struct ProgramState {
     public: PublicState,
     private: PrivateState,
@@ -28,10 +28,7 @@ pub struct ProgramState {
 
 impl ProgramState {
     pub fn new() -> Self {
-        Self {
-            public: PublicState::new(),
-            private: PrivateState::new(),
-        }
+        Self::default()
     }
 
     /// Returns an empty version of this struct with `None` values.

typed/src/input/program_state/public_state/public_state.rs

@@ -20,14 +20,14 @@ use leo_input::{
     InputParserError,
 };
 
-#[derive(Clone, PartialEq, Eq)]
+#[derive(Clone, PartialEq, Eq, Default)]
 pub struct PublicState {
     state: State,
 }
 
 impl PublicState {
     pub fn new() -> Self {
-        Self { state: State::new() }
+        Self::default()
     }
 
     /// Returns an empty version of this struct with `None` values.