ttrpc-codegen: fix clippy warnings on rust 1.81.0

Fix warnings.

Signed-off-by: Tim Zhang <tim@hyper.sh>

Author: Tim-Zhang

ttrpc-codegen/src/lib.rs

@@ -233,7 +233,7 @@ impl<'a> Run<'a> {
         protobuf_path: &str,
         result: &mut HashMap<String, FileDescriptorPair>,
     ) {
-        if result.get(protobuf_path).is_some() {
+        if result.contains_key(protobuf_path) {
             return;
         }
 
@@ -257,7 +257,7 @@ impl<'a> Run<'a> {
     }
 
     fn add_file(&mut self, protobuf_path: &str, fs_path: &Path) -> io::Result<()> {
-        if self.parsed_files.get(protobuf_path).is_some() {
+        if self.parsed_files.contains_key(protobuf_path) {
             return Ok(());
         }
 

ttrpc-codegen/src/parser.rs

@@ -106,7 +106,7 @@ trait ToChar {
 
 impl ToI32 for u64 {
     fn to_i32(&self) -> ParserResult<i32> {
-        if *self <= i32::max_value() as u64 {
+        if *self <= i32::MAX as u64 {
             Ok(*self as i32)
         } else {
             Err(ParserError::IntegerOverflow)
@@ -116,7 +116,7 @@ impl ToI32 for u64 {
 
 impl ToI32 for i64 {
     fn to_i32(&self) -> ParserResult<i32> {
-        if *self <= i32::max_value() as i64 && *self >= i32::min_value() as i64 {
+        if *self <= i32::MAX as i64 && *self >= i32::MIN as i64 {
             Ok(*self as i32)
         } else {
             Err(ParserError::IntegerOverflow)
@@ -126,7 +126,7 @@ impl ToI32 for i64 {
 
 impl ToI64 for u64 {
     fn to_i64(&self) -> Result<i64, ParserError> {
-        if *self <= i64::max_value() as u64 {
+        if *self <= i64::MAX as u64 {
             Ok(*self as i64)
         } else {
             Err(ParserError::IntegerOverflow)
@@ -1378,7 +1378,7 @@ impl<'a> Parser<'a> {
         let from = self.next_field_number()?;
         let to = if self.next_ident_if_eq("to")? {
             if self.next_ident_if_eq("max")? {
-                i32::max_value()
+                i32::MAX
             } else {
                 self.next_field_number()?
             }