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authorNadrieril2020-04-05 15:53:15 +0100
committerNadrieril2020-04-05 15:53:15 +0100
commit678d254a06dbb75f5398abaacee41d1712bf7194 (patch)
tree5be94a152e7da973dd7c099fb56022bc45330089 /serde_dhall/src
parent6dab8cb06e52efdb18b9dcf975e0a2d50454d704 (diff)
Make Deserializer functions the only functions
Diffstat (limited to 'serde_dhall/src')
-rw-r--r--serde_dhall/src/deserialize.rs2
-rw-r--r--serde_dhall/src/lib.rs25
-rw-r--r--serde_dhall/src/options.rs29
-rw-r--r--serde_dhall/src/shortcuts.rs272
-rw-r--r--serde_dhall/src/static_type.rs4
-rw-r--r--serde_dhall/src/value.rs6
6 files changed, 30 insertions, 308 deletions
diff --git a/serde_dhall/src/deserialize.rs b/serde_dhall/src/deserialize.rs
index 1be68c4..92be2e9 100644
--- a/serde_dhall/src/deserialize.rs
+++ b/serde_dhall/src/deserialize.rs
@@ -30,7 +30,7 @@ pub trait Sealed {}
/// }
///
/// // Convert a Dhall string to a Point.
-/// let point: Point = serde_dhall::from_str("{ x = 1, y = 1 + 1 }")?;
+/// let point: Point = serde_dhall::from_str("{ x = 1, y = 1 + 1 }").parse()?;
/// # Ok(())
/// # }
/// ```
diff --git a/serde_dhall/src/lib.rs b/serde_dhall/src/lib.rs
index 9f99adb..8ad7cb3 100644
--- a/serde_dhall/src/lib.rs
+++ b/serde_dhall/src/lib.rs
@@ -30,7 +30,7 @@
//! let data = "{ x = 1, y = 1 + 1 } : { x: Natural, y: Natural }";
//!
//! // Deserialize it to a Rust type.
-//! let deserialized_map: HashMap<String, usize> = serde_dhall::from_str(data)?;
+//! let deserialized_map: HashMap<String, usize> = serde_dhall::from_str(data).parse()?;
//!
//! let mut expected_map = HashMap::new();
//! expected_map.insert("x".to_string(), 1);
@@ -57,7 +57,7 @@
//! let data = "{ x = 1, y = 1 + 1 } : { x: Natural, y: Natural }";
//!
//! // Convert the Dhall string to a Point.
-//! let point: Point = serde_dhall::from_str(data)?;
+//! let point: Point = serde_dhall::from_str(data).parse()?;
//! assert_eq!(point.x, 1);
//! assert_eq!(point.y, 2);
//!
@@ -68,7 +68,7 @@
//! # Replacing `serde_json` or `serde_yaml`
//!
//! If you used to consume JSON or YAML, you only need to replace [`serde_json::from_str`] or
-//! [`serde_yaml::from_str`] with [`serde_dhall::from_str`](fn.from_str.html).
+//! [`serde_yaml::from_str`] with [`serde_dhall::from_str(…).parse()`](fn.from_str.html).
//!
//! [`serde_json::from_str`]: https://docs.serde.rs/serde_json/fn.from_str.html
//! [`serde_yaml::from_str`]: https://docs.serde.rs/serde_yaml/fn.from_str.html
@@ -103,13 +103,13 @@
//! let data = "{ x = 1, y = 1 + 1 }";
//!
//! // Convert the Dhall string to a Point.
-//! let point: Point = serde_dhall::from_str_static_type(data)?;
+//! let point: Point = serde_dhall::from_str(data).static_type_annotation().parse()?;
//! assert_eq!(point.x, 1);
//! assert_eq!(point.y, 2);
//!
//! // Invalid data fails the type validation
//! let invalid_data = "{ x = 1, z = 0.3 }";
-//! assert!(serde_dhall::from_str_static_type::<Point>(invalid_data).is_err());
+//! assert!(serde_dhall::from_str::<Point>(invalid_data).static_type_annotation().parse().is_err());
//! # Ok(())
//! # }
//! ```
@@ -124,7 +124,7 @@
//!
//! // Parse a Dhall type
//! let point_type_str = "{ x: Natural, y: Natural }";
-//! let point_type: SimpleType = serde_dhall::from_str(point_type_str)?;
+//! let point_type: SimpleType = serde_dhall::from_str(point_type_str).parse()?;
//!
//! // Some Dhall data
//! let point_data = "{ x = 1, y = 1 + 1 }";
@@ -132,7 +132,7 @@
//! // Deserialize the data to a Rust type. This checks that
//! // the data matches the provided type.
//! let deserialized_map: HashMap<String, usize> =
-//! serde_dhall::from_str_manual_type(point_data, &point_type)?;
+//! serde_dhall::from_str(point_data).type_annotation(&point_type).parse()?;
//!
//! let mut expected_map = HashMap::new();
//! expected_map.insert("x".to_string(), 1);
@@ -158,13 +158,9 @@ mod test_readme {
doc_comment::doctest!("../../README.md");
}
-/// Finer-grained control over deserializing Dhall values
-pub mod options;
-
+mod options;
mod deserialize;
mod error;
-/// Common patterns made easier
-mod shortcuts;
mod static_type;
/// Dhall values
mod value;
@@ -176,9 +172,8 @@ pub use deserialize::FromDhall;
pub(crate) use deserialize::Sealed;
pub(crate) use error::ErrorKind;
pub use error::{Error, Result};
-pub use shortcuts::{
- from_file, from_file_manual_type, from_file_static_type, from_str,
- from_str_manual_type, from_str_static_type,
+pub use options::{
+ from_file, from_str, Deserializer
};
pub use static_type::StaticType;
pub use value::{SimpleType, Value};
diff --git a/serde_dhall/src/options.rs b/serde_dhall/src/options.rs
index f3797ee..c44de90 100644
--- a/serde_dhall/src/options.rs
+++ b/serde_dhall/src/options.rs
@@ -27,9 +27,9 @@ enum Source<'a> {
///
/// ```no_run
/// # fn main() -> serde_dhall::Result<()> {
-/// use serde_dhall::options;
+/// use serde_dhall::from_file;
///
-/// let data = options::from_file("foo.dhall").parse()?;
+/// let data = from_file("foo.dhall").parse()?;
/// # Ok(())
/// # }
/// ```
@@ -38,10 +38,10 @@ enum Source<'a> {
///
/// ```no_run
/// # fn main() -> serde_dhall::Result<()> {
-/// use serde_dhall::options;
+/// use serde_dhall::{from_file, from_str};
///
-/// let ty = options::from_str("{ x: Natural, y: Natural }").parse()?;
-/// let data = options::from_file("foo.dhall")
+/// let ty = from_str("{ x: Natural, y: Natural }").parse()?;
+/// let data = from_file("foo.dhall")
/// .type_annotation(&ty)
/// .parse()?;
/// # Ok(())
@@ -91,7 +91,7 @@ impl<'a, T> Deserializer<'a, T> {
///
/// let data = "12 + ./other_file.dhall : Natural";
/// assert!(
- /// serde_dhall::options::from_str::<u64>(data)
+ /// serde_dhall::from_str::<u64>(data)
/// .imports(false)
/// .parse()
/// .is_err()
@@ -136,11 +136,11 @@ impl<'a, T> Deserializer<'a, T> {
///
/// // Parse a Dhall type
/// let point_type_str = "{ x: Natural, y: Optional Natural }";
- /// let point_type: SimpleType = serde_dhall::options::from_str(point_type_str).parse()?;
+ /// let point_type: SimpleType = serde_dhall::from_str(point_type_str).parse()?;
///
/// // Parse some Dhall data to a Point.
/// let data = "{ x = 1, y = Some (1 + 1) }";
- /// let point: Point = serde_dhall::options::from_str(data)
+ /// let point: Point = serde_dhall::from_str(data)
/// .type_annotation(&point_type)
/// .parse()?;
/// assert_eq!(point.x, 1);
@@ -149,7 +149,7 @@ impl<'a, T> Deserializer<'a, T> {
/// // Invalid data fails the type validation; deserialization would have succeeded otherwise.
/// let invalid_data = "{ x = 1 }";
/// assert!(
- /// serde_dhall::options::from_str::<Point>(invalid_data)
+ /// serde_dhall::from_str::<Point>(invalid_data)
/// .type_annotation(&point_type)
/// .parse()
/// .is_err()
@@ -187,7 +187,7 @@ impl<'a, T> Deserializer<'a, T> {
/// let data = "{ x = 1, y = Some (1 + 1) }";
///
/// // Convert the Dhall string to a Point.
- /// let point: Point = serde_dhall::options::from_str(data)
+ /// let point: Point = serde_dhall::from_str(data)
/// .static_type_annotation()
/// .parse()?;
/// assert_eq!(point.x, 1);
@@ -196,7 +196,7 @@ impl<'a, T> Deserializer<'a, T> {
/// // Invalid data fails the type validation; deserialization would have succeeded otherwise.
/// let invalid_data = "{ x = 1 }";
/// assert!(
- /// serde_dhall::options::from_str::<Point>(invalid_data)
+ /// serde_dhall::from_str::<Point>(invalid_data)
/// .static_type_annotation()
/// .parse()
/// .is_err()
@@ -240,8 +240,7 @@ impl<'a, T> Deserializer<'a, T> {
///
/// ```no_run
/// # fn main() -> serde_dhall::Result<()> {
- /// use serde_dhall::options;
- /// let data = options::from_file("foo.dhall").parse()?;
+ /// let data = serde_dhall::from_file("foo.dhall").parse()?;
/// # Ok(())
/// # }
/// ```
@@ -276,7 +275,7 @@ impl<'a, T> Deserializer<'a, T> {
/// let data = "{ x = 1, y = 1 + 1 } : { x: Natural, y: Natural }";
///
/// // Parse the Dhall string as a Point.
-/// let point: Point = serde_dhall::options::from_str(data).parse()?;
+/// let point: Point = serde_dhall::from_str(data).parse()?;
///
/// assert_eq!(point.x, 1);
/// assert_eq!(point.y, 2);
@@ -309,7 +308,7 @@ pub fn from_str<T>(s: &str) -> Deserializer<'_, T> {
/// }
///
/// // Parse the Dhall file as a Point.
-/// let point: Point = serde_dhall::options::from_file("foo.dhall").parse()?;
+/// let point: Point = serde_dhall::from_file("foo.dhall").parse()?;
/// # Ok(())
/// # }
/// ```
diff --git a/serde_dhall/src/shortcuts.rs b/serde_dhall/src/shortcuts.rs
deleted file mode 100644
index 9c9ce9f..0000000
--- a/serde_dhall/src/shortcuts.rs
+++ /dev/null
@@ -1,272 +0,0 @@
-use doc_comment::doc_comment;
-use std::path::Path;
-
-use crate::{options, FromDhall, Result, SimpleType, StaticType};
-
-// Avoid copy-pasting documentation
-
-#[rustfmt::skip]
-macro_rules! gen_doc {
- (@source_desc, str) => {"a string of Dhall text"};
- (@source_desc, file) => {"a Dhall file"};
- (@source_desc, url) => {"a remote url"};
-
- (@tck_info1, none) => {""};
- (@tck_info1, manual) => {", additionally checking that it matches the supplied type"};
- (@tck_info1, static) => {", additionally checking that it matches the type of `T`"};
-
- (@tck_info2, none) => {""};
- (@tck_info2, manual) => {" against the supplied type"};
- (@tck_info2, static) => {" against the type of `T`"};
-
- (@tck_req, $src:tt, none) => {""};
- (@tck_req, $src:tt, manual) => {""};
- (@tck_req, $src:tt, static) => {
- concat!("`T` must implement the [`StaticType`] trait. Use [`from_", stringify!($src),
- "_manual_type`] to provide a type manually.\n")
- };
-
- (@tck_comment, $src:tt, none) => {
- concat!("For additional type safety, prefer [`from_", stringify!($src), "_static_type`]
- or [`from_", stringify!($src), "_manual_type`].\n")
- };
- (@tck_comment, $src:tt, manual) => {concat!("See also [`from_", stringify!($src), "_static_type`].\n")};
- (@tck_comment, $src:tt, static) => {""};
-
- (@run_example, str) => {""};
- (@run_example, file) => {"no_run"};
- (@run_example, url) => {"no_run"};
-
- ($src:tt, $ty:tt) => {concat!("
-Deserialize an instance of type `T` from ", gen_doc!(@source_desc, $src), gen_doc!(@tck_info1, $ty),".
-
-", gen_doc!(@tck_req, $src, $ty), "
-This will recursively resolve all imports in the expression, and typecheck it", gen_doc!(@tck_info2, $ty),"
-before deserialization. Relative imports will be resolved relative to the current directory.
-See [`options`] for more control over this process.
-
-", gen_doc!(@tck_comment, $src, $ty), "
-
-# Example
-
-```", gen_doc!(@run_example, $src), "
-# fn main() -> serde_dhall::Result<()> {",
-gen_example!($src, $ty), "
-# Ok(())
-# }
-```
-
-[`options`]: options/index.html
-[`from_", stringify!($src), "_manual_type`]: fn.from_", stringify!($src), "_manual_type.html
-[`from_", stringify!($src), "_static_type`]: fn.from_", stringify!($src), "_static_type.html
-[`StaticType`]: trait.StaticType.html
-")};
-}
-
-#[rustfmt::skip]
-macro_rules! gen_example {
- (str, none) => {concat!(r#"
-use serde::Deserialize;
-
-// We use serde's derive feature
-#[derive(Deserialize)]
-struct Point {
- x: u64,
- y: u64,
-}
-
-// Some Dhall data
-let data = "{ x = 1, y = 1 + 1 } : { x: Natural, y: Natural }";
-
-// Parse the Dhall string as a Point.
-let point: Point = serde_dhall::from_str(data)?;
-
-assert_eq!(point.x, 1);
-assert_eq!(point.y, 2);
-"#)};
-
- (str, manual) => {concat!(r#"
-use std::collections::HashMap;
-use serde_dhall::SimpleType;
-
-// Parse a Dhall type
-let point_type_str = "{ x: Natural, y: Natural }";
-let point_type: SimpleType = serde_dhall::from_str(point_type_str)?;
-
-// Some Dhall data
-let point_data = "{ x = 1, y = 1 + 1 }";
-
-// Deserialize the data to a Rust type. This checks that
-// the data matches the provided type.
-let deserialized_map: HashMap<String, usize> =
- serde_dhall::from_str_manual_type(point_data, &point_type)?;
-
-let mut expected_map = HashMap::new();
-expected_map.insert("x".to_string(), 1);
-expected_map.insert("y".to_string(), 2);
-
-assert_eq!(deserialized_map, expected_map);
-"#)};
-
- (str, static) => {concat!(r#"
-use serde::Deserialize;
-use serde_dhall::StaticType;
-
-#[derive(Deserialize, StaticType)]
-struct Point {
- x: u64,
- y: u64,
-}
-
-// Some Dhall data
-let data = "{ x = 1, y = 1 + 1 }";
-
-// Convert the Dhall string to a Point.
-let point: Point = serde_dhall::from_str_static_type(data)?;
-assert_eq!(point.x, 1);
-assert_eq!(point.y, 2);
-
-// Invalid data fails the type validation
-let invalid_data = "{ x = 1, z = 0.3 }";
-assert!(serde_dhall::from_str_static_type::<Point>(invalid_data).is_err());
-"#)};
-
- (file, none) => {concat!(r#"
-use serde::Deserialize;
-
-// We use serde's derive feature
-#[derive(Deserialize)]
-struct Point {
- x: u64,
- y: u64,
-}
-
-// Parse the Dhall file as a Point.
-let point: Point = serde_dhall::from_file("foo.dhall")?;
-"#)};
-
- (file, manual) => {concat!(r#"
-use std::collections::HashMap;
-use serde_dhall::SimpleType;
-
-// Parse a Dhall type
-let point_type_str = "{ x: Natural, y: Natural }";
-let point_type: SimpleType = serde_dhall::from_str(point_type_str)?;
-
-// Deserialize the data to a Rust type. This checks that
-// the data matches the provided type.
-let deserialized_map: HashMap<String, usize> =
- serde_dhall::from_file_manual_type("foo.dhall", &point_type)?;
-"#)};
-
- (file, static) => {concat!(r#"
-use serde::Deserialize;
-use serde_dhall::StaticType;
-
-#[derive(Deserialize, StaticType)]
-struct Point {
- x: u64,
- y: u64,
-}
-
-// Convert the Dhall string to a Point.
-let point: Point = serde_dhall::from_file_static_type("foo.dhall")?;
-"#)};
-
- ($src:tt, $ty:tt) => {""};
-}
-
-macro_rules! generate_fn {
- (@generate_src,
- str, $ty:tt, $name:ident,
- ) => {
- generate_fn!(@generate_ty,
- str, $ty, $name,
- (),
- (s: &str),
- (options::from_str(s)),
- );
- };
- (@generate_src,
- file, $ty:tt, $name:ident,
- ) => {
- generate_fn!(@generate_ty,
- file, $ty, $name,
- (P: AsRef<Path>),
- (path: P),
- (options::from_file(path)),
- );
- };
-
- (@generate_ty,
- $src:tt, none, $name:ident,
- ($($ty_params:tt)*),
- ($($input_args:tt)*),
- ($($create_options:tt)*),
- ) => {
- generate_fn!(@generate,
- $src, none, $name,
- ($($ty_params)*),
- ($($input_args)*),
- (),
- ($($create_options)*),
- );
- };
- (@generate_ty,
- $src:tt, manual, $name:ident,
- ($($ty_params:tt)*),
- ($($input_args:tt)*),
- ($($create_options:tt)*),
- ) => {
- generate_fn!(@generate,
- $src, manual, $name,
- ($($ty_params)*),
- ($($input_args)*, ty: &SimpleType),
- (),
- ($($create_options)* .type_annotation(ty)),
- );
- };
- (@generate_ty,
- $src:tt, static, $name:ident,
- ($($ty_params:tt)*),
- ($($input_args:tt)*),
- ($($create_options:tt)*),
- ) => {
- generate_fn!(@generate,
- $src, static, $name,
- ($($ty_params)*),
- ($($input_args)*),
- (+ StaticType),
- ($($create_options)* .static_type_annotation()),
- );
- };
-
- (@generate,
- $src:tt, $ty:tt, $name:ident,
- ($($ty_params:tt)*),
- ($($input_args:tt)*),
- ($($extra_bounds:tt)*),
- ($($create_options:tt)*),
- ) => {
- doc_comment! {
- gen_doc!($src, $ty),
- pub fn $name<T, $($ty_params)*> ($($input_args)*) -> Result<T>
- where
- T: FromDhall $($extra_bounds)*,
- {
- $($create_options)* .parse()
- }
- }
- };
-
- ($src:tt, $ty:tt, $name:ident) => {
- generate_fn!(@generate_src, $src, $ty, $name,);
- };
-}
-
-generate_fn!(str, none, from_str);
-generate_fn!(str, manual, from_str_manual_type);
-generate_fn!(str, static, from_str_static_type);
-generate_fn!(file, none, from_file);
-generate_fn!(file, manual, from_file_manual_type);
-generate_fn!(file, static, from_file_static_type);
diff --git a/serde_dhall/src/static_type.rs b/serde_dhall/src/static_type.rs
index 020dfce..6e76424 100644
--- a/serde_dhall/src/static_type.rs
+++ b/serde_dhall/src/static_type.rs
@@ -23,7 +23,7 @@ use crate::SimpleType;
/// }
///
/// let ty: SimpleType =
-/// serde_dhall::from_str("{ x: Bool, y: List Natural }")?;
+/// serde_dhall::from_str("{ x: Bool, y: List Natural }").parse()?;
///
/// assert_eq!(Foo::static_type(), ty);
/// # Ok(())
@@ -71,7 +71,7 @@ pub trait StaticType {
/// }
/// }
///
- /// let foo: Foo = serde_dhall::from_str_static_type("[ 1, 2 ]")?;
+ /// let foo: Foo = serde_dhall::from_str("[ 1, 2 ]").static_type_annotation().parse()?;
///
/// assert_eq!(foo.0, vec![1, 2]);
/// # Ok(())
diff --git a/serde_dhall/src/value.rs b/serde_dhall/src/value.rs
index ea7c20a..f21e836 100644
--- a/serde_dhall/src/value.rs
+++ b/serde_dhall/src/value.rs
@@ -28,7 +28,7 @@ pub(crate) enum SimpleValue {
Union(String, Option<Box<SimpleValue>>),
}
-/// The type of a value that can be decoded by Serde, like `{ x: Bool, y: List Natural }`.
+/// The type of a value that can be decoded by Serde, e.g. `{ x: Bool, y: List Natural }`.
///
/// A `SimpleType` is used when deserializing values to ensure they are of the expected type.
/// Rather than letting `serde` handle potential type mismatches, this uses the type-checking
@@ -53,7 +53,7 @@ pub(crate) enum SimpleValue {
/// use serde_dhall::SimpleType;
///
/// let ty: SimpleType =
-/// serde_dhall::from_str("{ x: Natural, y: Natural }")?;
+/// serde_dhall::from_str("{ x: Natural, y: Natural }").parse()?;
///
/// let mut map = HashMap::new();
/// map.insert("x".to_string(), SimpleType::Natural);
@@ -74,7 +74,7 @@ pub(crate) enum SimpleValue {
/// }
///
/// let ty: SimpleType =
-/// serde_dhall::from_str("{ x: Bool, y: List Natural }")?;
+/// serde_dhall::from_str("{ x: Bool, y: List Natural }").parse()?;
///
/// assert_eq!(Foo::static_type(), ty);
/// # Ok(())