feat: impl Error from core (#1121)

Author: CosmicHorrorDev

README.md

@@ -202,7 +202,7 @@ You can find more projects and ecosystem tools in the [awesome-pest](https://git
 
 ## Minimum Supported Rust Version (MSRV)
 
-This library should always compile with default features on **Rust 1.80.0**.
+This library should always compile with default features on **Rust 1.81.0**.
 
 ## no_std support
 

bootstrap/Cargo.toml

@@ -9,7 +9,7 @@ repository = "https://github.com/pest-parser/pest"
 documentation = "https://docs.rs/pest"
 publish = false
 license = "MIT OR Apache-2.0"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [dependencies]
 pest_generator = "2.1.1" # Use the crates-io version, which (should be) known-good
@@ -19,4 +19,4 @@ quote = "1.0"
 default = []
 # Whether or not the bootstrapper should put the generated .rs file in the
 # source tree or in the output tree
-not-bootstrap-in-src = []
+not-bootstrap-in-src = []

debugger/Cargo.toml

@@ -14,7 +14,7 @@ keywords = ["pest", "grammar", "debugger"]
 categories = ["parsing"]
 license = "MIT OR Apache-2.0"
 readme = "_README.md"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [dependencies]
 pest = { path = "../pest", version = "2.8.2" }

derive/Cargo.toml

@@ -11,7 +11,7 @@ keywords = ["pest", "parser", "peg", "grammar"]
 categories = ["parsing"]
 license = "MIT OR Apache-2.0"
 readme = "_README.md"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [lib]
 name = "pest_derive"

generator/Cargo.toml

@@ -11,7 +11,7 @@ keywords = ["pest", "generator"]
 categories = ["parsing"]
 license = "MIT OR Apache-2.0"
 readme = "_README.md"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [features]
 default = ["std"]

grammars/Cargo.toml

@@ -11,7 +11,7 @@ keywords = ["pest", "parser", "peg", "grammar"]
 categories = ["parsing"]
 license = "MIT OR Apache-2.0"
 readme = "_README.md"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [dependencies]
 pest = { path = "../pest", version = "2.8.2" }

meta/Cargo.toml

@@ -19,7 +19,7 @@ include = [
     "_README.md",
     "LICENSE-*",
 ]
-rust-version = "1.80"
+rust-version = "1.81"
 
 [dependencies]
 pest = { path = "../pest", version = "2.8.2" }

pest/Cargo.toml

@@ -11,7 +11,7 @@ keywords = ["pest", "parser", "peg", "grammar"]
 categories = ["parsing"]
 license = "MIT OR Apache-2.0"
 readme = "_README.md"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [features]
 default = ["std", "memchr"]

pest/src/error.rs

@@ -42,7 +42,6 @@ pub struct Error<R> {
     parse_attempts: Option<ParseAttempts<R>>,
 }
 
-#[cfg(feature = "std")]
 impl<R: RuleType> core::error::Error for Error<R> {}
 
 /// Different kinds of parsing errors.
@@ -62,8 +61,7 @@ pub enum ErrorVariant<R> {
     },
 }
 
-#[cfg(feature = "std")]
-impl<R: RuleType> std::error::Error for ErrorVariant<R> {}
+impl<R: RuleType> core::error::Error for ErrorVariant<R> {}
 
 /// Where an `Error` has occurred.
 #[derive(Clone, Debug, Eq, Hash, PartialEq)]
@@ -784,7 +782,7 @@ mod miette_adapter {
         }
     }
 
-    impl<R> std::error::Error for MietteAdapter<R>
+    impl<R> core::error::Error for MietteAdapter<R>
     where
         R: RuleType,
         Self: fmt::Debug + fmt::Display,

vm/Cargo.toml

@@ -11,7 +11,7 @@ keywords = ["pest", "vm"]
 categories = ["parsing"]
 license = "MIT OR Apache-2.0"
 readme = "_README.md"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [dependencies]
 pest = { path = "../pest", version = "2.8.2" }