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21 changed files with 183 additions and 125 deletions

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@ -1,4 +1,3 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4"> <project version="4">
<component name="DiscordProjectSettings"> <component name="DiscordProjectSettings">
<option name="show" value="ASK" /> <option name="show" value="ASK" />

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@ -2,9 +2,7 @@
<project version="4"> <project version="4">
<component name="ProjectModuleManager"> <component name="ProjectModuleManager">
<modules> <modules>
<module fileurl="file://$PROJECT_DIR$/_workspace.iml" filepath="$PROJECT_DIR$/_workspace.iml" /> <module fileurl="file://$PROJECT_DIR$/micronfig.iml" filepath="$PROJECT_DIR$/micronfig.iml" />
<module fileurl="file://$PROJECT_DIR$/micronfig/micronfig.iml" filepath="$PROJECT_DIR$/micronfig/micronfig.iml" />
<module fileurl="file://$PROJECT_DIR$/micronfig_macros/micronfig_macros.iml" filepath="$PROJECT_DIR$/micronfig_macros/micronfig_macros.iml" />
</modules> </modules>
</component> </component>
</project> </project>

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@ -0,0 +1,19 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Doc" type="CargoCommandRunConfiguration" factoryName="Cargo Command" nameIsGenerated="true">
<option name="command" value="doc --open" />
<option name="workingDirectory" value="file://$PROJECT_DIR$" />
<envs />
<option name="emulateTerminal" value="true" />
<option name="channel" value="DEFAULT" />
<option name="requiredFeatures" value="true" />
<option name="allFeatures" value="false" />
<option name="withSudo" value="false" />
<option name="buildTarget" value="REMOTE" />
<option name="backtrace" value="SHORT" />
<option name="isRedirectInput" value="false" />
<option name="redirectInputPath" value="" />
<method v="2">
<option name="CARGO.BUILD_TASK_PROVIDER" enabled="true" />
</method>
</configuration>
</component>

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@ -0,0 +1,20 @@
<component name="ProjectRunConfigurationManager">
<configuration default="false" name="Test" type="CargoCommandRunConfiguration" factoryName="Cargo Command" nameIsGenerated="true">
<option name="buildProfileId" value="test" />
<option name="command" value="test -- --test-threads=1" />
<option name="workingDirectory" value="file://$PROJECT_DIR$" />
<envs />
<option name="emulateTerminal" value="true" />
<option name="channel" value="DEFAULT" />
<option name="requiredFeatures" value="true" />
<option name="allFeatures" value="false" />
<option name="withSudo" value="false" />
<option name="buildTarget" value="REMOTE" />
<option name="backtrace" value="FULL" />
<option name="isRedirectInput" value="false" />
<option name="redirectInputPath" value="" />
<method v="2">
<option name="CARGO.BUILD_TASK_PROVIDER" enabled="true" />
</method>
</configuration>
</component>

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@ -0,0 +1,26 @@
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<stop offset="0" stop-color="#051436"/>
<stop offset=".75" stop-color="#001553"/>
<stop offset="1" stop-color="#010a4e"/>
</linearGradient>
</defs>
<rect fill="url(#background)" height="512" width="512"/>
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<defs>
<filter color-interpolation-filters="sRGB" id="emblematic-filter">
<feFlood flood-color="rgb(1,8,40)" in="SourceGraphic" result="flood"/>
<feGaussianBlur in="SourceGraphic" result="blur" stdDeviation="10"/>
<feOffset dx="-4" dy="8" in="blur" result="offset"/>
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<feComposite in="SourceGraphic" in2="comp1" result="comp2"/>
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@ -5,6 +5,8 @@
<content url="file://$MODULE_DIR$"> <content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/micronfig/src" isTestSource="false" /> <sourceFolder url="file://$MODULE_DIR$/micronfig/src" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/micronfig/tests" isTestSource="true" /> <sourceFolder url="file://$MODULE_DIR$/micronfig/tests" isTestSource="true" />
<sourceFolder url="file://$MODULE_DIR$/micronfig_macros/src" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/micronfig_macros/tests" isTestSource="true" />
<excludeFolder url="file://$MODULE_DIR$/target" /> <excludeFolder url="file://$MODULE_DIR$/target" />
</content> </content>
<orderEntry type="inheritedJdk" /> <orderEntry type="inheritedJdk" />

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@ -1,6 +1,6 @@
[package] [package]
name = "micronfig" name = "micronfig"
version = "0.3.1" version = "1.0.0"
authors = ["Stefano Pigozzi <me@steffo.eu>"] authors = ["Stefano Pigozzi <me@steffo.eu>"]
edition = "2021" edition = "2021"
description = "Macro-based configuration management" description = "Macro-based configuration management"
@ -19,8 +19,11 @@ envfiles = []
envdot = ["regex"] envdot = ["regex"]
[dependencies] [dependencies]
micronfig_macros = { version = "0.3.1", path = "../micronfig_macros" } micronfig_macros = { version = "1.0.0", path = "../micronfig_macros" }
regex = { version = "1.10.2", optional = true } regex = { version = "1.10.2", optional = true }
[dev-dependencies] [dev-dependencies]
tempfile = { version = "3.9.0" } tempfile = { version = "3.9.0" }
[lints.clippy]
tabs-in-doc-comments = "allow"

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@ -21,7 +21,7 @@ pub fn parse_dotenv<P>(value: P) -> Option<DotEnv>
let mut contents: String = String::new(); let mut contents: String = String::new();
file.read_to_string(&mut contents) file.read_to_string(&mut contents)
.expect(&*format!("to be able to read {value:?}")); .unwrap_or_else(|_| panic!("to be able to read {value:?}"));
let mut keys: HashMap<OsString, String> = HashMap::new(); let mut keys: HashMap<OsString, String> = HashMap::new();

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@ -13,11 +13,11 @@ pub fn get(key: &OsStr) -> Option<String> {
let path = std::path::PathBuf::from(path); let path = std::path::PathBuf::from(path);
let mut file = std::fs::File::open(&path) let mut file = std::fs::File::open(&path)
.expect(&*format!("to be able to open file at {path:?}")); .unwrap_or_else(|_| panic!("to be able to open file at {path:?}"));
let mut data = String::new(); let mut data = String::new();
file.read_to_string(&mut data) file.read_to_string(&mut data)
.expect(&*format!("to be able to read from file at {path:?}")); .unwrap_or_else(|_| panic!("to be able to read from file at {path:?}"));
Some(data) Some(data)
} }

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@ -94,11 +94,13 @@
//! The syntax for conversion is as follows: //! The syntax for conversion is as follows:
//! //!
//! ``` //! ```
//! use std::net::SocketAddr;
//!
//! micronfig::config! { //! micronfig::config! {
//! // use FromStr to parse the String as an isize //! // use FromStr to parse the String as an isize
//! REQUIRED_SIGNED: String > isize, //! REQUIRED_SIGNED: String > isize,
//! // use FromStr to parse the String as a SocketAddr //! // use FromStr to parse the String as a SocketAddr
//! REQUIRED_SOCKETADDR: String > std::net::SocketAddr, //! REQUIRED_SOCKETADDR: String > SocketAddr,
//! // use From to convert the String to... another String //! // use From to convert the String to... another String
//! REQUIRED_STRING: String -> String, //! REQUIRED_STRING: String -> String,
//! // use TryFrom to convert the String to another String //! // use TryFrom to convert the String to another String
@ -109,10 +111,6 @@
//! } //! }
//! ``` //! ```
//! //!
//! > ***Warning***
//! >
//! > Types should always be fully qualified, or the macro won't work properly!
//!
//! Custom types can be used as well: //! Custom types can be used as well:
//! //!
//! ``` //! ```
@ -131,7 +129,7 @@
//! } //! }
//! //!
//! micronfig::config! { //! micronfig::config! {
//! MY_CUSTOM_TYPE: String -> crate::Duplicator, //! MY_CUSTOM_TYPE: String -> Duplicator,
//! } //! }
//! //!
//! # fn main() {} //! # fn main() {}
@ -150,7 +148,7 @@
//! //!
//! micronfig::config! { //! micronfig::config! {
//! // First parse the string as an u64 with FromStr, then convert it to a ChatId with From. //! // First parse the string as an u64 with FromStr, then convert it to a ChatId with From.
//! RESPOND_TO_MESSAGES_IN: String > u64 -> crate::ChatId, //! RESPOND_TO_MESSAGES_IN: String > u64 -> ChatId,
//! } //! }
//! //!
//! # fn main() {} //! # fn main() {}

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@ -1,6 +1,6 @@
[package] [package]
name = "micronfig_macros" name = "micronfig_macros"
version = "0.3.1" version = "1.0.0"
authors = ["Stefano Pigozzi <me@steffo.eu>"] authors = ["Stefano Pigozzi <me@steffo.eu>"]
edition = "2021" edition = "2021"
description = "Macros for micronfig" description = "Macros for micronfig"
@ -13,12 +13,15 @@ categories = ["config"]
all-features = true all-features = true
[dependencies] [dependencies]
syn = "2.0" syn = { version = "2.0", features = ["extra-traits"] }
quote = "1.0" quote = "1.0"
[dev-dependencies] [dev-dependencies]
micronfig = { version = "0.3.1", path = "../micronfig" } micronfig = { version = "1.0.0", path = "../micronfig" }
trybuild = "1.0.87" trybuild = "1.0.87"
[lib] [lib]
proc-macro = true proc-macro = true
[lints.clippy]
tabs-in-doc-comments = "allow"

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@ -1,17 +1,17 @@
extern crate proc_macro; extern crate proc_macro;
use proc_macro::TokenStream; use proc_macro::TokenStream;
use quote::{quote, ToTokens}; use quote::quote;
use syn::parse::{Parse, ParseStream}; use syn::parse::{Parse, ParseStream};
use syn::{Ident, parse_macro_input, Token, Type, TypePath}; use syn::{Ident, parse_macro_input, Token, Type, TypePath};
use syn::punctuated::Punctuated; use syn::punctuated::Punctuated;
type Config = Punctuated<ConfigItem, Token![,]>; type Config = Punctuated<ConfigItem, Token![,]>;
#[derive(Clone)] #[derive(Clone)]
struct ConfigItem { struct ConfigItem {
identifier: Ident, identifier: Ident,
optional: bool, optional: bool,
first: TypePath,
types: Vec<ConfigPair>, types: Vec<ConfigPair>,
} }
@ -36,34 +36,32 @@ impl Parse for ConfigItem {
let optional = input.lookahead1().peek(Token![?]); let optional = input.lookahead1().peek(Token![?]);
if optional { if optional {
input.parse::<Token![?]>() input.parse::<Token![?]>()
.expect("this token to be parsed correctly, as it has been previously peeked"); .expect("Expected `?`, as it was previously peeked");
} }
let types = match input.lookahead1().peek(Token![:]) { let (first, types) = match input.lookahead1().peek(Token![:]) {
true => { true => {
input.parse::<Token![:]>() input.parse::<Token![:]>()
.expect("this token to be parsed correctly, as it has been previously peeked"); .expect("Expected `:`, as it was previously peeked");
let string_type = input.parse::<TypePath>()?; let first = input.parse::<TypePath>()?;
if &*string_type.to_token_stream().to_string() != "String" {
return Err(
syn::Error::new_spanned(
string_type,
"first type of a conversion chain should always be literally `String`, other aliases are not allowed"
)
);
}
let mut types = Vec::new(); let mut types = Vec::new();
while let Ok(typ) = input.parse::<ConfigPair>() { while let Ok(typ) = input.parse::<ConfigPair>() {
types.push(typ) types.push(typ)
} }
types
(first, types)
},
false => {
let first = syn::parse_quote!(String);
let types = Vec::new();
(first, types)
}, },
false => Vec::new(),
}; };
Ok(Self { identifier, optional, types }) Ok(Self { identifier, optional, first, types })
} }
} }
@ -95,23 +93,22 @@ impl Parse for Conversion {
#[proc_macro] #[proc_macro]
pub fn config(input: TokenStream) -> TokenStream { pub fn config(input: TokenStream) -> TokenStream {
let input: Config = parse_macro_input!(input with syn::punctuated::Punctuated::parse_terminated); let input: Config = parse_macro_input!(input with Punctuated::parse_terminated);
let cache_code = quote! { let cache_code = quote! {
#[allow(non_snake_case)]
mod _cache {
pub static _lock: std::sync::OnceLock<micronfig::cache::Cache> = std::sync::OnceLock::new();
}
#[allow(non_snake_case)] #[allow(non_snake_case)]
fn _cache() -> &'static micronfig::cache::Cache { fn _cache() -> &'static micronfig::cache::Cache {
_cache::_lock.get_or_init(micronfig::cache::Cache::new) static LOCK: std::sync::OnceLock<micronfig::cache::Cache> = std::sync::OnceLock::new();
LOCK.get_or_init(micronfig::cache::Cache::new)
} }
}; };
let items_code = input.iter().map(|item: &ConfigItem| { let items_code = input.iter().map(|item: &ConfigItem| {
let identifier = &item.identifier; let identifier = &item.identifier;
let identifier_string = identifier.to_string(); let identifier_string = identifier.to_string();
let type_first = &item.first;
let type_final = match item.types.last() { let type_final = match item.types.last() {
Some(pair) => { Some(pair) => {
@ -137,13 +134,17 @@ pub fn config(input: TokenStream) -> TokenStream {
}, },
(Conversion::TryFrom, true) => quote! { (Conversion::TryFrom, true) => quote! {
let value: Option<#typ> = value let value: Option<#typ> = value
.map(|v| v.try_into()) .map(|v| v
.map(|v| v.expect(&format!("to be able to convert {}", #identifier_string))); .try_into()
.unwrap_or_else(|err| panic!("{}: Couldn't perform `=> {:?}` conversion: {:#?}", #identifier_string, std::any::type_name::<#typ>(), err))
);
}, },
(Conversion::FromStr, true) => quote! { (Conversion::FromStr, true) => quote! {
let value: Option<#typ> = value let value: Option<#typ> = value
.map(|v| v.parse()) .map(|v| v
.map(|v| v.expect(&format!("to be able to parse {}", #identifier_string))); .parse()
.unwrap_or_else(|err| panic!("{}: Couldn't perform `> {:?}` conversion: {:#?}", #identifier_string, std::any::type_name::<#typ>(), err))
);
}, },
(Conversion::From, false) => quote! { (Conversion::From, false) => quote! {
let value: #typ = value let value: #typ = value
@ -152,12 +153,12 @@ pub fn config(input: TokenStream) -> TokenStream {
(Conversion::TryFrom, false) => quote! { (Conversion::TryFrom, false) => quote! {
let value: #typ = value let value: #typ = value
.try_into() .try_into()
.expect(&format!("to be able to convert {}", #identifier_string)); .unwrap_or_else(|err| panic!("{}: Couldn't perform `=> {:?}` conversion: {:#?}", #identifier_string, std::any::type_name::<#typ>(), err));
}, },
(Conversion::FromStr, false) => quote! { (Conversion::FromStr, false) => quote! {
let value: #typ = value let value: #typ = value
.parse() .parse()
.expect(&format!("to be able to parse {}", #identifier_string)); .unwrap_or_else(|err| panic!("{}: Couldn't perform `> {:?}` conversion: {:#?}", #identifier_string, std::any::type_name::<#typ>(), err));
}, },
} }
} }
@ -169,21 +170,18 @@ pub fn config(input: TokenStream) -> TokenStream {
true => quote! {}, true => quote! {},
false => quote! { false => quote! {
let value: String = value let value: String = value
.expect(&format!("that configuration variable {} was set", #identifier_string)); .unwrap_or_else(|| panic!("{}: Is required, but has no value set", #identifier_string));
}, },
}; };
quote! { quote! {
#[allow(non_snake_case)]
mod #identifier {
pub(super) static _lock: std::sync::OnceLock<#type_final_option> = std::sync::OnceLock::new();
}
#[allow(non_snake_case)] #[allow(non_snake_case)]
pub(crate) fn #identifier() -> &'static #type_final_option { pub(crate) fn #identifier() -> &'static #type_final_option {
#identifier::_lock.get_or_init(|| { static LOCK: std::sync::OnceLock<#type_final_option> = std::sync::OnceLock::new();
LOCK.get_or_init(|| {
let key = #identifier_string.as_ref(); let key = #identifier_string.as_ref();
let value: Option<std::string::String> = _cache().get(key); let value: Option<#type_first> = _cache().get(key);
#require_code #require_code
#conversion_code #conversion_code
@ -193,7 +191,10 @@ pub fn config(input: TokenStream) -> TokenStream {
} }
} }
}).reduce(|acc, new| { }).reduce(|acc, new| {
quote! { #acc #new } quote! {
#acc
#new
}
}); });
let quote = quote! { let quote = quote! {

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@ -4,21 +4,14 @@ error[E0277]: the trait bound `u64: From<String>` is not satisfied
1 | / micronfig::config! { 1 | / micronfig::config! {
2 | | GARASAUTO: String -> u64, 2 | | GARASAUTO: String -> u64,
3 | | } 3 | | }
| | ^ | |_^ the trait `From<String>` is not implemented for `u64`, which is required by `String: Into<_>`
| | |
| |_the trait `From<String>` is not implemented for `u64`
| in this macro invocation
|
::: src/lib.rs
|
| pub fn config(input: TokenStream) -> TokenStream {
| ------------------------------------------------ in this expansion of `micronfig::config!`
| |
= help: the following other types implement trait `From<T>`: = help: the following other types implement trait `From<T>`:
<u64 as From<bool>> `u64` implements `From<Char>`
<u64 as From<char>> `u64` implements `From<bool>`
<u64 as From<u8>> `u64` implements `From<char>`
<u64 as From<u16>> `u64` implements `From<u16>`
<u64 as From<u32>> `u64` implements `From<u32>`
<u64 as From<NonZeroU64>> `u64` implements `From<u8>`
= note: required for `String` to implement `Into<u64>` = note: required for `String` to implement `Into<u64>`
= note: this error originates in the macro `micronfig::config` (in Nightly builds, run with -Z macro-backtrace for more info)

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@ -4,25 +4,21 @@ error[E0277]: the trait bound `Infallible: FromStr` is not satisfied
1 | / micronfig::config! { 1 | / micronfig::config! {
2 | | GARASAUTO: String > std::convert::Infallible, 2 | | GARASAUTO: String > std::convert::Infallible,
3 | | } 3 | | }
| | ^ | |_^ the trait `FromStr` is not implemented for `Infallible`
| | |
| |_the trait `FromStr` is not implemented for `Infallible`
| in this macro invocation
|
::: src/lib.rs
|
| pub fn config(input: TokenStream) -> TokenStream {
| ------------------------------------------------ in this expansion of `micronfig::config!`
| |
= help: the following other types implement trait `FromStr`: = help: the following other types implement trait `FromStr`:
bool IpAddr
char Ipv4Addr
isize Ipv6Addr
i8 NonZero<i128>
i16 NonZero<i16>
i32 NonZero<i32>
i64 NonZero<i64>
i128 NonZero<i8>
and $N others and $N others
note: required by a bound in `core::str::<impl str>::parse` note: required by a bound in `core::str::<impl str>::parse`
--> $RUST/core/src/str/mod.rs --> $RUST/core/src/str/mod.rs
|
| pub fn parse<F: FromStr>(&self) -> Result<F, F::Err> {
| ^^^^^^^ required by this bound in `core::str::<impl str>::parse`
= note: this error originates in the macro `micronfig::config` (in Nightly builds, run with -Z macro-backtrace for more info)

View file

@ -1,26 +1,19 @@
error[E0277]: the trait bound `u64: From<String>` is not satisfied error[E0277]: the trait bound `u64: TryFrom<String>` is not satisfied
--> tests/sources/wrong_conversion_trait_tryfrom.rs:1:1 --> tests/sources/wrong_conversion_trait_tryfrom.rs:1:1
| |
1 | / micronfig::config! { 1 | / micronfig::config! {
2 | | GARASAUTO: String => u64, 2 | | GARASAUTO: String => u64,
3 | | } 3 | | }
| | ^ | |_^ the trait `From<String>` is not implemented for `u64`, which is required by `String: TryInto<_>`
| | |
| |_the trait `From<String>` is not implemented for `u64`
| in this macro invocation
|
::: src/lib.rs
|
| pub fn config(input: TokenStream) -> TokenStream {
| ------------------------------------------------ in this expansion of `micronfig::config!`
| |
= help: the following other types implement trait `From<T>`: = help: the following other types implement trait `From<T>`:
<u64 as From<bool>> `u64` implements `From<Char>`
<u64 as From<char>> `u64` implements `From<bool>`
<u64 as From<u8>> `u64` implements `From<char>`
<u64 as From<u16>> `u64` implements `From<u16>`
<u64 as From<u32>> `u64` implements `From<u32>`
<u64 as From<NonZeroU64>> `u64` implements `From<u8>`
= note: required for `String` to implement `Into<u64>` = note: required for `String` to implement `Into<u64>`
= note: required for `u64` to implement `TryFrom<String>` = note: required for `u64` to implement `TryFrom<String>`
= note: required for `String` to implement `TryInto<u64>` = note: required for `String` to implement `TryInto<u64>`
= note: this error originates in the macro `micronfig::config` (in Nightly builds, run with -Z macro-backtrace for more info)

View file

@ -1,11 +1,27 @@
error: first type of a conversion chain should always be literally `String`, other aliases are not allowed error[E0308]: mismatched types
--> tests/sources/wrong_start.rs:2:13 --> tests/sources/wrong_start.rs:1:1
| |
2 | GARASAUTO: i64, 1 | / micronfig::config! {
| ^^^ 2 | | GARASAUTO: i64,
3 | | }
| | ^
| | |
| |_expected `Option<i64>`, found `Option<String>`
| expected due to this
|
= note: expected enum `Option<i64>`
found enum `Option<String>`
= note: this error originates in the macro `micronfig::config` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope error[E0308]: mismatched types
--> tests/sources/wrong_start.rs:7:20 --> tests/sources/wrong_start.rs:1:1
| |
7 | println!("{:#?}", GARASAUTO()); 1 | / micronfig::config! {
| ^^^^^^^^^ not found in this scope 2 | | GARASAUTO: i64,
3 | | }
| | ^- help: try using a conversion method: `.to_string()`
| | |
| |_expected `String`, found `i64`
| expected due to this
|
= note: this error originates in the macro `micronfig::config` (in Nightly builds, run with -Z macro-backtrace for more info)

View file

@ -1,12 +1,3 @@
error[E0412]: cannot find type `PathBuf` in this scope
--> tests/sources/wrong_unqualified_noimport.rs:2:22
|
2 | GARASAUTO: String > PathBuf,
| ^^^^^^^ not found in this scope
|
= help: consider importing this struct:
std::path::PathBuf
error[E0412]: cannot find type `PathBuf` in this scope error[E0412]: cannot find type `PathBuf` in this scope
--> tests/sources/wrong_unqualified_noimport.rs:2:22 --> tests/sources/wrong_unqualified_noimport.rs:2:22
| |

View file

@ -34,6 +34,7 @@ pass!(string_multi_mixed);
pass!(string_single_explicit); pass!(string_single_explicit);
pass!(string_single_implicit); pass!(string_single_implicit);
pass!(tryfrom_single_custom); pass!(tryfrom_single_custom);
pass!(unqualified_import);
fail!(wrong_conversion_longfatarrow); fail!(wrong_conversion_longfatarrow);
fail!(wrong_conversion_longthinarrow); fail!(wrong_conversion_longthinarrow);
@ -47,5 +48,4 @@ fail!(wrong_nonsense_3);
fail!(wrong_start); fail!(wrong_start);
fail!(wrong_syntax_colon); fail!(wrong_syntax_colon);
fail!(wrong_syntax_type); fail!(wrong_syntax_type);
fail!(wrong_unqualified_import);
fail!(wrong_unqualified_noimport); fail!(wrong_unqualified_noimport);