More tests

micronfig_macros/src/lib.rs

@@ -1,6 +1,6 @@
 extern crate proc_macro;
 use proc_macro::TokenStream;
-use quote::quote;
+use quote::{quote, ToTokens};
 use syn::parse::{Parse, ParseStream};
 use syn::{Ident, parse_macro_input, Token, Type};
 use syn::punctuated::Punctuated;
@@ -34,7 +34,10 @@ impl Parse for ConfigItem {
 
 		if input.lookahead1().peek(Token![:]) {
 			input.parse::<Token![:]>()?;
-			input.parse::<Type>()?;
+			let string_type = input.parse::<Type>()?;
+			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 `String`"))
+			}
 
 			let mut types = vec![];
 			while let Ok(typ) = input.parse::<ConfigPair>() {
@@ -47,7 +50,6 @@ impl Parse for ConfigItem {
 			let types = vec![];
 			Ok(Self { identifier, types })
 		}
-
 	}
 }
 
@@ -72,7 +74,7 @@ impl Parse for Conversion {
 			Ok(Conversion::FromStr)
 		}
 		else {
-			Err(input.error("Cannot determine conversion method to use; valid conversion tokens are `->` (From), `=>` (TryFrom) and `>` (FromStr)."))
+			Err(input.error("cannot determine conversion method to use; valid conversion tokens are `->` (From), `=>` (TryFrom) and `>` (FromStr)."))
 		}
 	}
 }
@@ -84,12 +86,12 @@ pub fn config(input: TokenStream) -> TokenStream {
 	let cache_code = quote! {
 		#[allow(non_snake_case)]
 		mod _cache {
-			pub static lock: std::sync::OnceLock<micronfig::cache::Cache> = std::sync::OnceLock::new();
+			pub static _lock: std::sync::OnceLock<micronfig::cache::Cache> = std::sync::OnceLock::new();
 		}
 
 		#[allow(non_snake_case)]
 		fn _cache() -> &'static micronfig::cache::Cache {
-			_cache::lock.get_or_init(micronfig::cache::Cache::new)
+			_cache::_lock.get_or_init(micronfig::cache::Cache::new)
 		}
 	};
 
@@ -135,12 +137,12 @@ pub fn config(input: TokenStream) -> TokenStream {
 		quote! {
 			#[allow(non_snake_case)]
 			mod #identifier {
-				pub(super) static lock: std::sync::OnceLock<Option<#last_type>> = std::sync::OnceLock::new();
+				pub(super) static _lock: std::sync::OnceLock<Option<#last_type>> = std::sync::OnceLock::new();
 			}
 
 			#[allow(non_snake_case)]
 			pub(crate) fn #identifier() -> &'static Option<#last_type> {
-				#identifier::lock.get_or_init(|| {
+				#identifier::_lock.get_or_init(|| {
 					let key: std::ffi::OsString = #identifier_string.into();
 					let value: Option<String> = _cache().get(&key);
 

micronfig_macros/tests/sources/chain_single_down.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String > u128 => u64 => u32 => u16 => u8,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/chain_single_up.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String > u8 -> u16 -> u32 -> u64 -> u128,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/from_single_custom.rs

@@ -0,0 +1,16 @@
+#[derive(std::fmt::Debug)]
+struct MyCustomStruct(String);
+
+impl From<String> for MyCustomStruct {
+	fn from(value: String) -> Self {
+		Self(value)
+	}
+}
+
+micronfig::config! {
+	GARASAUTO: String -> crate::MyCustomStruct,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/parse_single_custom.rs

@@ -0,0 +1,18 @@
+#[derive(std::fmt::Debug)]
+struct MyCustomStruct(String);
+
+impl std::str::FromStr for MyCustomStruct {
+	type Err = ();
+	
+	fn from_str(s: &str) -> Result<Self, Self::Err> {
+		Ok(Self(s.to_owned()))
+	}
+}
+
+micronfig::config! {
+	GARASAUTO: String > crate::MyCustomStruct,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/parse_single_ipaddr.rs

@@ -1,7 +0,0 @@
-micronfig::config! {
-	MY_IP_ADDR: String > IpAddr,
-}
-
-fn main() {
-	println!("{:?}", MY_IP_ADDR())
-}

micronfig_macros/tests/sources/tryfrom_single_custom.rs

@@ -0,0 +1,18 @@
+#[derive(std::fmt::Debug)]
+struct MyCustomStruct(String);
+
+impl std::convert::TryFrom<String> for MyCustomStruct {
+	type Error = ();
+
+	fn try_from(value: String) -> Result<Self, Self::Error> {
+		Ok(Self(value))
+	}
+}
+
+micronfig::config! {
+	GARASAUTO: String => crate::MyCustomStruct,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_longfatarrow.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String ==> u64,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_longfatarrow.stderr

@@ -0,0 +1,11 @@
+error: expected `,`
+ --> tests/sources/wrong_conversion_longfatarrow.rs:2:20
+  |
+2 |     GARASAUTO: String ==> u64,
+  |                       ^
+
+error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope
+ --> tests/sources/wrong_conversion_longfatarrow.rs:6:19
+  |
+6 |     println!("{:?}", GARASAUTO())
+  |                      ^^^^^^^^^ not found in this scope

micronfig_macros/tests/sources/wrong_conversion_longthinarrow.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String --> u64,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_longthinarrow.stderr

@@ -0,0 +1,11 @@
+error: expected `,`
+ --> tests/sources/wrong_conversion_longthinarrow.rs:2:20
+  |
+2 |     GARASAUTO: String --> u64,
+  |                       ^
+
+error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope
+ --> tests/sources/wrong_conversion_longthinarrow.rs:6:19
+  |
+6 |     println!("{:?}", GARASAUTO())
+  |                      ^^^^^^^^^ not found in this scope

micronfig_macros/tests/sources/wrong_conversion_tildearrow.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String ~> u64,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_tildearrow.stderr

@@ -0,0 +1,11 @@
+error: expected `,`
+ --> tests/sources/wrong_conversion_tildearrow.rs:2:20
+  |
+2 |     GARASAUTO: String ~> u64,
+  |                       ^
+
+error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope
+ --> tests/sources/wrong_conversion_tildearrow.rs:6:19
+  |
+6 |     println!("{:?}", GARASAUTO())
+  |                      ^^^^^^^^^ not found in this scope

micronfig_macros/tests/sources/wrong_conversion_trait_from.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String -> u64,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_trait_from.stderr

@@ -0,0 +1,24 @@
+error[E0277]: the trait bound `u64: From<String>` is not satisfied
+ --> tests/sources/wrong_conversion_trait_from.rs:1:1
+  |
+1 | / micronfig::config! {
+2 | |     GARASAUTO: String -> u64,
+3 | | }
+  | | ^
+  | | |
+  | |_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>`:
+            <u64 as From<bool>>
+            <u64 as From<char>>
+            <u64 as From<u8>>
+            <u64 as From<u16>>
+            <u64 as From<u32>>
+            <u64 as From<NonZeroU64>>
+  = note: required for `String` to implement `Into<u64>`

micronfig_macros/tests/sources/wrong_conversion_trait_fromstr.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String > std::convert::Infallible,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_trait_fromstr.stderr

@@ -0,0 +1,28 @@
+error[E0277]: the trait bound `Infallible: FromStr` is not satisfied
+ --> tests/sources/wrong_conversion_trait_fromstr.rs:1:1
+  |
+1 | / micronfig::config! {
+2 | |     GARASAUTO: String > std::convert::Infallible,
+3 | | }
+  | | ^
+  | | |
+  | |_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`:
+            bool
+            char
+            isize
+            i8
+            i16
+            i32
+            i64
+            i128
+          and $N others
+note: required by a bound in `core::str::<impl str>::parse`
+ --> $RUST/core/src/str/mod.rs

micronfig_macros/tests/sources/wrong_conversion_trait_tryfrom.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String => u64,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_conversion_trait_tryfrom.stderr

@@ -0,0 +1,26 @@
+error[E0277]: the trait bound `u64: From<String>` is not satisfied
+ --> tests/sources/wrong_conversion_trait_tryfrom.rs:1:1
+  |
+1 | / micronfig::config! {
+2 | |     GARASAUTO: String => u64,
+3 | | }
+  | | ^
+  | | |
+  | |_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>`:
+            <u64 as From<bool>>
+            <u64 as From<char>>
+            <u64 as From<u8>>
+            <u64 as From<u16>>
+            <u64 as From<u32>>
+            <u64 as From<NonZeroU64>>
+  = note: required for `String` to implement `Into<u64>`
+  = note: required for `u64` to implement `TryFrom<String>`
+  = note: required for `String` to implement `TryInto<u64>`

micronfig_macros/tests/sources/wrong_nonsense_1.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	garasauto!"68"3469l
+}
+
+fn main() {
+
+}

micronfig_macros/tests/sources/wrong_nonsense_1.stderr

@@ -0,0 +1,5 @@
+error: expected `,`
+ --> tests/sources/wrong_nonsense_1.rs:2:11
+  |
+2 |     garasauto!"68"3469l
+  |              ^

micronfig_macros/tests/sources/wrong_nonsense_2.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	: ->
+}
+
+fn main() {
+
+}

micronfig_macros/tests/sources/wrong_nonsense_2.stderr

@@ -0,0 +1,5 @@
+error: expected identifier
+ --> tests/sources/wrong_nonsense_2.rs:2:2
+  |
+2 |     : ->
+  |     ^

micronfig_macros/tests/sources/wrong_nonsense_3.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
+}
+
+fn main() {
+
+}

micronfig_macros/tests/sources/wrong_nonsense_3.stderr

@@ -0,0 +1,5 @@
+error: expected identifier
+ --> tests/sources/wrong_nonsense_3.rs:2:2
+  |
+2 |     ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
+  |     ^

micronfig_macros/tests/sources/wrong_start.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: i64,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_start.stderr

@@ -0,0 +1,11 @@
+error: first type of a conversion chain should always be `String`
+ --> tests/sources/wrong_start.rs:2:13
+  |
+2 |     GARASAUTO: i64,
+  |                ^^^
+
+error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope
+ --> tests/sources/wrong_start.rs:6:19
+  |
+6 |     println!("{:?}", GARASAUTO())
+  |                      ^^^^^^^^^ not found in this scope

micronfig_macros/tests/sources/wrong_syntax_colon.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: ,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_syntax_colon.stderr

@@ -0,0 +1,11 @@
+error: expected one of: `for`, parentheses, `fn`, `unsafe`, `extern`, identifier, `::`, `<`, `dyn`, square brackets, `*`, `&`, `!`, `impl`, `_`, lifetime
+ --> tests/sources/wrong_syntax_colon.rs:2:13
+  |
+2 |     GARASAUTO: ,
+  |                ^
+
+error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope
+ --> tests/sources/wrong_syntax_colon.rs:6:19
+  |
+6 |     println!("{:?}", GARASAUTO())
+  |                      ^^^^^^^^^ not found in this scope

micronfig_macros/tests/sources/wrong_syntax_type.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO String,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_syntax_type.stderr

@@ -0,0 +1,11 @@
+error: expected `,`
+ --> tests/sources/wrong_syntax_type.rs:2:12
+  |
+2 |     GARASAUTO String,
+  |               ^^^^^^
+
+error[E0425]: cannot find function, tuple struct or tuple variant `GARASAUTO` in this scope
+ --> tests/sources/wrong_syntax_type.rs:6:19
+  |
+6 |     println!("{:?}", GARASAUTO())
+  |                      ^^^^^^^^^ not found in this scope

micronfig_macros/tests/sources/wrong_unqualified_import.stderr

@@ -0,0 +1,9 @@
+error[E0412]: cannot find type `PathBuf` in this scope
+ --> tests/sources/wrong_unqualified_import.rs:4:22
+  |
+4 |     GARASAUTO: String > PathBuf,
+  |                         ^^^^^^^ not found in this scope
+  |
+  = help: consider importing one of these items:
+          crate::PathBuf
+          std::path::PathBuf

micronfig_macros/tests/sources/wrong_unqualified_noimport.rs

@@ -0,0 +1,7 @@
+micronfig::config! {
+	GARASAUTO: String > PathBuf,
+}
+
+fn main() {
+	println!("{:?}", GARASAUTO())
+}

micronfig_macros/tests/sources/wrong_unqualified_noimport.stderr

@@ -0,0 +1,19 @@
+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
+ --> tests/sources/wrong_unqualified_noimport.rs:2:22
+  |
+2 |     GARASAUTO: String > PathBuf,
+  |                         ^^^^^^^ not found in this scope
+  |
+help: consider importing this struct
+  |
+1 + use std::path::PathBuf;
+  |

micronfig_macros/tests/tests.rs

@@ -16,14 +16,32 @@ macro_rules! fail {
 	}
 }
 
+pass!(chain_single_down);
+pass!(chain_single_up);
 pass!(empty);
-pass!(string_single_explicit);
-pass!(string_single_implicit);
+pass!(from_single_custom);
+pass!(parse_single_custom);
+pass!(parse_single_i64);
+pass!(parse_single_pathbuf);
+pass!(parse_single_u64);
 pass!(string_multi_explicit);
 pass!(string_multi_implicit);
 pass!(string_multi_mixed);
-pass!(parse_single_u64);
-pass!(parse_single_i64);
-pass!(parse_single_ipaddr);
-pass!(parse_single_pathbuf_full);
-pass!(parse_single_pathbuf_use);
+pass!(string_single_explicit);
+pass!(string_single_implicit);
+pass!(tryfrom_single_custom);
+
+fail!(wrong_conversion_longfatarrow);
+fail!(wrong_conversion_longthinarrow);
+fail!(wrong_conversion_tildearrow);
+fail!(wrong_conversion_trait_from);
+fail!(wrong_conversion_trait_fromstr);
+fail!(wrong_conversion_trait_tryfrom);
+fail!(wrong_nonsense_1);
+fail!(wrong_nonsense_2);
+fail!(wrong_nonsense_3);
+fail!(wrong_start);
+fail!(wrong_syntax_colon);
+fail!(wrong_syntax_type);
+fail!(wrong_unqualified_import);
+fail!(wrong_unqualified_noimport);