serde_path_to_error-0.1.9/.cargo_vcs_info.json0000644000000001360000000000100150740ustar { "git": { "sha1": "f3b5693aaf3d2a0bb8edd3be291b857b610f3da5" }, "path_in_vcs": "" }serde_path_to_error-0.1.9/.clippy.toml000064400000000000000000000000201046102023000161270ustar 00000000000000msrv = "1.31.0" serde_path_to_error-0.1.9/.github/FUNDING.yml000064400000000000000000000000201046102023000170310ustar 00000000000000github: dtolnay serde_path_to_error-0.1.9/.github/workflows/ci.yml000064400000000000000000000027231046102023000204030ustar 00000000000000name: CI on: push: pull_request: schedule: [cron: "40 1 * * *"] permissions: contents: read env: RUSTFLAGS: -Dwarnings jobs: test: name: Rust ${{matrix.rust}} runs-on: ubuntu-latest strategy: fail-fast: false matrix: rust: [nightly, beta, stable, 1.36.0] timeout-minutes: 45 steps: - uses: actions/checkout@v3 - uses: dtolnay/rust-toolchain@master with: toolchain: ${{matrix.rust}} - run: cargo test msrv: name: Rust 1.31.0 runs-on: ubuntu-latest timeout-minutes: 45 steps: - uses: actions/checkout@v3 - uses: dtolnay/rust-toolchain@1.31.0 - run: cargo check clippy: name: Clippy runs-on: ubuntu-latest if: github.event_name != 'pull_request' timeout-minutes: 45 steps: - uses: actions/checkout@v3 - uses: dtolnay/rust-toolchain@clippy - run: cargo clippy --tests -- -Dclippy::all -Dclippy::pedantic miri: name: Miri runs-on: ubuntu-latest timeout-minutes: 45 steps: - uses: actions/checkout@v3 - uses: dtolnay/rust-toolchain@miri - run: cargo miri test env: MIRIFLAGS: -Zmiri-strict-provenance outdated: name: Outdated runs-on: ubuntu-latest if: github.event_name != 'pull_request' timeout-minutes: 45 steps: - uses: actions/checkout@v3 - uses: dtolnay/install@cargo-outdated - run: cargo outdated --workspace --exit-code 1 serde_path_to_error-0.1.9/.gitignore000064400000000000000000000000361046102023000156530ustar 00000000000000/target **/*.rs.bk Cargo.lock serde_path_to_error-0.1.9/Cargo.toml0000644000000020400000000000100130660ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies. # # If you are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] edition = "2018" rust-version = "1.31" name = "serde_path_to_error" version = "0.1.9" authors = ["David Tolnay "] description = "Path to the element that failed to deserialize" readme = "README.md" keywords = [ "serde", "serialization", ] categories = ["encoding"] license = "MIT OR Apache-2.0" repository = "https://github.com/dtolnay/path-to-error" [package.metadata.docs.rs] targets = ["x86_64-unknown-linux-gnu"] [dependencies.serde] version = "1.0" [dev-dependencies.serde_derive] version = "1.0" [dev-dependencies.serde_json] version = "1.0" serde_path_to_error-0.1.9/Cargo.toml.orig000064400000000000000000000010441046102023000165520ustar 00000000000000[package] name = "serde_path_to_error" version = "0.1.9" # remember to update html_root_url authors = ["David Tolnay "] categories = ["encoding"] description = "Path to the element that failed to deserialize" edition = "2018" keywords = ["serde", "serialization"] license = "MIT OR Apache-2.0" repository = "https://github.com/dtolnay/path-to-error" rust-version = "1.31" [dependencies] serde = "1.0" [dev-dependencies] serde_derive = "1.0" serde_json = "1.0" [package.metadata.docs.rs] targets = ["x86_64-unknown-linux-gnu"] serde_path_to_error-0.1.9/LICENSE-APACHE000064400000000000000000000251371046102023000156200ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License. serde_path_to_error-0.1.9/LICENSE-MIT000064400000000000000000000017771046102023000153340ustar 00000000000000Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. serde_path_to_error-0.1.9/README.md000064400000000000000000000044201046102023000151430ustar 00000000000000# Serde path to error [github](https://github.com/dtolnay/path-to-error) [crates.io](https://crates.io/crates/serde_path_to_error) [docs.rs](https://docs.rs/serde_path_to_error) [build status](https://github.com/dtolnay/path-to-error/actions?query=branch%3Amaster) Find out the path at which a deserialization error occurred. This crate provides a wrapper that works with any existing Serde `Deserializer` and exposes the chain of field names leading to the error. ```toml [dependencies] serde = "1.0" serde_path_to_error = "0.1" ``` ```rust use serde::Deserialize; use std::collections::BTreeMap as Map; #[derive(Deserialize)] struct Package { name: String, dependencies: Map, } #[derive(Deserialize)] struct Dependency { version: String, } fn main() { let j = r#"{ "name": "demo", "dependencies": { "serde": { "version": 1 } } }"#; // Some Deserializer. let jd = &mut serde_json::Deserializer::from_str(j); let result: Result = serde_path_to_error::deserialize(jd); match result { Ok(_) => panic!("expected a type error"), Err(err) => { let path = err.path().to_string(); assert_eq!(path, "dependencies.serde.version"); } } } ```
#### License Licensed under either of Apache License, Version 2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions. serde_path_to_error-0.1.9/src/de.rs000064400000000000000000001164111046102023000154150ustar 00000000000000use crate::wrap::{Wrap, WrapVariant}; use crate::{Chain, Error, Track}; use serde::de::{self, Deserialize, DeserializeSeed, Visitor}; use serde::serde_if_integer128; use std::fmt; /// Entry point. See [crate documentation][crate] for an example. pub fn deserialize<'de, D, T>(deserializer: D) -> Result> where D: de::Deserializer<'de>, T: Deserialize<'de>, { let mut track = Track::new(); match T::deserialize(Deserializer::new(deserializer, &mut track)) { Ok(t) => Ok(t), Err(err) => Err(Error { path: track.path(), original: err, }), } } /// Deserializer adapter that records path to deserialization errors. /// /// # Example /// /// ``` /// # use serde_derive::Deserialize; /// # /// use serde::Deserialize; /// use std::collections::BTreeMap as Map; /// /// #[derive(Deserialize)] /// struct Package { /// name: String, /// dependencies: Map, /// } /// /// #[derive(Deserialize)] /// struct Dependency { /// version: String, /// } /// /// fn main() { /// let j = r#"{ /// "name": "demo", /// "dependencies": { /// "serde": { /// "version": 1 /// } /// } /// }"#; /// /// // Some Deserializer. /// let jd = &mut serde_json::Deserializer::from_str(j); /// /// let mut track = serde_path_to_error::Track::new(); /// let pd = serde_path_to_error::Deserializer::new(jd, &mut track); /// /// match Package::deserialize(pd) { /// Ok(_) => panic!("expected a type error"), /// Err(_) => { /// let path = track.path().to_string(); /// assert_eq!(path, "dependencies.serde.version"); /// } /// } /// } /// ``` pub struct Deserializer<'a, 'b, D> { de: D, chain: Chain<'a>, track: &'b Track, } impl<'a, 'b, D> Deserializer<'a, 'b, D> { pub fn new(de: D, track: &'b mut Track) -> Self { Deserializer { de, chain: Chain::Root, track, } } } // Plain old forwarding impl. impl<'a, 'b, 'de, D> de::Deserializer<'de> for Deserializer<'a, 'b, D> where D: de::Deserializer<'de>, { type Error = D::Error; fn deserialize_any(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_any(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_bool(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_bool(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_u8(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_u8(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_u16(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_u16(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_u32(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_u32(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_u64(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_u64(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_i8(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_i8(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_i16(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_i16(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_i32(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_i32(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_i64(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_i64(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } serde_if_integer128! { fn deserialize_u128(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_u128(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_i128(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_i128(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } } fn deserialize_f32(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_f32(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_f64(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_f64(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_char(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_char(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_str(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_str(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_string(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_string(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_bytes(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_bytes(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_byte_buf(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_byte_buf(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_option(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_option(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_unit(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_unit(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_unit_struct( self, name: &'static str, visitor: V, ) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_unit_struct(name, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_newtype_struct( self, name: &'static str, visitor: V, ) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_newtype_struct(name, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_seq(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_seq(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_tuple(self, len: usize, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_tuple(len, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_tuple_struct( self, name: &'static str, len: usize, visitor: V, ) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_tuple_struct(name, len, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_map(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_map(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_struct( self, name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_struct(name, fields, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_enum( self, name: &'static str, variants: &'static [&'static str], visitor: V, ) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_enum(name, variants, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_ignored_any(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_ignored_any(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn deserialize_identifier(self, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.de .deserialize_identifier(Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn is_human_readable(&self) -> bool { self.de.is_human_readable() } } // Forwarding impl to preserve context. impl<'a, 'b, 'de, X> Visitor<'de> for Wrap<'a, 'b, X> where X: Visitor<'de>, { type Value = X::Value; fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { self.delegate.expecting(formatter) } fn visit_bool(self, v: bool) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_bool(v) .map_err(|err| track.trigger(chain, err)) } fn visit_i8(self, v: i8) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_i8(v) .map_err(|err| track.trigger(chain, err)) } fn visit_i16(self, v: i16) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_i16(v) .map_err(|err| track.trigger(chain, err)) } fn visit_i32(self, v: i32) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_i32(v) .map_err(|err| track.trigger(chain, err)) } fn visit_i64(self, v: i64) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_i64(v) .map_err(|err| track.trigger(chain, err)) } fn visit_u8(self, v: u8) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_u8(v) .map_err(|err| track.trigger(chain, err)) } fn visit_u16(self, v: u16) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_u16(v) .map_err(|err| track.trigger(chain, err)) } fn visit_u32(self, v: u32) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_u32(v) .map_err(|err| track.trigger(chain, err)) } fn visit_u64(self, v: u64) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_u64(v) .map_err(|err| track.trigger(chain, err)) } serde_if_integer128! { fn visit_i128(self, v: i128) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_i128(v) .map_err(|err| track.trigger(chain, err)) } fn visit_u128(self, v: u128) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_u128(v) .map_err(|err| track.trigger(chain, err)) } } fn visit_f32(self, v: f32) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_f32(v) .map_err(|err| track.trigger(chain, err)) } fn visit_f64(self, v: f64) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_f64(v) .map_err(|err| track.trigger(chain, err)) } fn visit_char(self, v: char) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_char(v) .map_err(|err| track.trigger(chain, err)) } fn visit_str(self, v: &str) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_str(v) .map_err(|err| track.trigger(chain, err)) } fn visit_borrowed_str(self, v: &'de str) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_borrowed_str(v) .map_err(|err| track.trigger(chain, err)) } fn visit_string(self, v: String) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_string(v) .map_err(|err| track.trigger(chain, err)) } fn visit_unit(self) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_unit() .map_err(|err| track.trigger(chain, err)) } fn visit_none(self) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_none() .map_err(|err| track.trigger(chain, err)) } fn visit_some(self, deserializer: D) -> Result where D: de::Deserializer<'de>, { let chain = self.chain; let track = self.track; self.delegate .visit_some(Deserializer { de: deserializer, chain: Chain::Some { parent: chain }, track, }) .map_err(|err| track.trigger(chain, err)) } fn visit_newtype_struct(self, deserializer: D) -> Result where D: de::Deserializer<'de>, { let chain = self.chain; let track = self.track; self.delegate .visit_newtype_struct(Deserializer { de: deserializer, chain: Chain::NewtypeStruct { parent: chain }, track, }) .map_err(|err| track.trigger(chain, err)) } fn visit_seq(self, visitor: V) -> Result where V: de::SeqAccess<'de>, { let chain = self.chain; let track = self.track; self.delegate .visit_seq(SeqAccess::new(visitor, chain, track)) .map_err(|err| track.trigger(chain, err)) } fn visit_map(self, visitor: V) -> Result where V: de::MapAccess<'de>, { let chain = self.chain; let track = self.track; self.delegate .visit_map(MapAccess::new(visitor, chain, track)) .map_err(|err| track.trigger(chain, err)) } fn visit_enum(self, visitor: V) -> Result where V: de::EnumAccess<'de>, { let chain = self.chain; let track = self.track; self.delegate .visit_enum(Wrap::new(visitor, chain, track)) .map_err(|err| track.trigger(chain, err)) } fn visit_bytes(self, v: &[u8]) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_bytes(v) .map_err(|err| track.trigger(chain, err)) } fn visit_borrowed_bytes(self, v: &'de [u8]) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_borrowed_bytes(v) .map_err(|err| track.trigger(chain, err)) } fn visit_byte_buf(self, v: Vec) -> Result where E: de::Error, { let chain = self.chain; let track = self.track; self.delegate .visit_byte_buf(v) .map_err(|err| track.trigger(chain, err)) } } // Forwarding impl to preserve context. impl<'a, 'b, 'de, X> de::EnumAccess<'de> for Wrap<'a, 'b, X> where X: de::EnumAccess<'de> + 'a, { type Error = X::Error; type Variant = WrapVariant<'a, 'b, X::Variant>; fn variant_seed(self, seed: V) -> Result<(V::Value, Self::Variant), X::Error> where V: DeserializeSeed<'de>, { let chain = self.chain; let track = self.track; let mut variant = None; self.delegate .variant_seed(CaptureKey::new(seed, &mut variant)) .map_err(|err| track.trigger(chain, err)) .map(move |(v, vis)| { let chain = match variant { Some(variant) => Chain::Enum { parent: chain, variant, }, None => Chain::NonStringKey { parent: chain }, }; (v, WrapVariant::new(vis, chain, track)) }) } } // Forwarding impl to preserve context. impl<'a, 'b, 'de, X> de::VariantAccess<'de> for WrapVariant<'a, 'b, X> where X: de::VariantAccess<'de>, { type Error = X::Error; fn unit_variant(self) -> Result<(), X::Error> { let chain = self.chain; let track = self.track; self.delegate .unit_variant() .map_err(|err| track.trigger(&chain, err)) } fn newtype_variant_seed(self, seed: T) -> Result where T: DeserializeSeed<'de>, { let chain = self.chain; let track = self.track; let nested = Chain::NewtypeVariant { parent: &chain }; self.delegate .newtype_variant_seed(TrackedSeed::new(seed, nested, track)) .map_err(|err| track.trigger(&chain, err)) } fn tuple_variant(self, len: usize, visitor: V) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.delegate .tuple_variant(len, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } fn struct_variant( self, fields: &'static [&'static str], visitor: V, ) -> Result where V: Visitor<'de>, { let chain = self.chain; let track = self.track; self.delegate .struct_variant(fields, Wrap::new(visitor, &chain, track)) .map_err(|err| track.trigger(&chain, err)) } } // Seed that saves the string into the given optional during `visit_str` and // `visit_string`. struct CaptureKey<'a, X> { delegate: X, key: &'a mut Option, } impl<'a, X> CaptureKey<'a, X> { fn new(delegate: X, key: &'a mut Option) -> Self { CaptureKey { delegate, key } } } // Forwarding impl. impl<'a, 'de, X> DeserializeSeed<'de> for CaptureKey<'a, X> where X: DeserializeSeed<'de>, { type Value = X::Value; fn deserialize(self, deserializer: D) -> Result where D: de::Deserializer<'de>, { self.delegate .deserialize(CaptureKey::new(deserializer, self.key)) } } // Forwarding impl. impl<'a, 'de, X> de::Deserializer<'de> for CaptureKey<'a, X> where X: de::Deserializer<'de>, { type Error = X::Error; fn deserialize_any(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_any(CaptureKey::new(visitor, self.key)) } fn deserialize_bool(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_bool(CaptureKey::new(visitor, self.key)) } fn deserialize_u8(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_u8(CaptureKey::new(visitor, self.key)) } fn deserialize_u16(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_u16(CaptureKey::new(visitor, self.key)) } fn deserialize_u32(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_u32(CaptureKey::new(visitor, self.key)) } fn deserialize_u64(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_u64(CaptureKey::new(visitor, self.key)) } fn deserialize_i8(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_i8(CaptureKey::new(visitor, self.key)) } fn deserialize_i16(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_i16(CaptureKey::new(visitor, self.key)) } fn deserialize_i32(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_i32(CaptureKey::new(visitor, self.key)) } fn deserialize_i64(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_i64(CaptureKey::new(visitor, self.key)) } serde_if_integer128! { fn deserialize_u128(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_u128(CaptureKey::new(visitor, self.key)) } fn deserialize_i128(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_i128(CaptureKey::new(visitor, self.key)) } } fn deserialize_f32(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_f32(CaptureKey::new(visitor, self.key)) } fn deserialize_f64(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_f64(CaptureKey::new(visitor, self.key)) } fn deserialize_char(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_char(CaptureKey::new(visitor, self.key)) } fn deserialize_str(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_str(CaptureKey::new(visitor, self.key)) } fn deserialize_string(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_string(CaptureKey::new(visitor, self.key)) } fn deserialize_bytes(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_bytes(CaptureKey::new(visitor, self.key)) } fn deserialize_byte_buf(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_byte_buf(CaptureKey::new(visitor, self.key)) } fn deserialize_option(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_option(CaptureKey::new(visitor, self.key)) } fn deserialize_unit(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_unit(CaptureKey::new(visitor, self.key)) } fn deserialize_unit_struct( self, name: &'static str, visitor: V, ) -> Result where V: Visitor<'de>, { self.delegate .deserialize_unit_struct(name, CaptureKey::new(visitor, self.key)) } fn deserialize_newtype_struct( self, name: &'static str, visitor: V, ) -> Result where V: Visitor<'de>, { self.delegate .deserialize_newtype_struct(name, CaptureKey::new(visitor, self.key)) } fn deserialize_seq(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_seq(CaptureKey::new(visitor, self.key)) } fn deserialize_tuple(self, len: usize, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_tuple(len, CaptureKey::new(visitor, self.key)) } fn deserialize_tuple_struct( self, name: &'static str, len: usize, visitor: V, ) -> Result where V: Visitor<'de>, { self.delegate .deserialize_tuple_struct(name, len, CaptureKey::new(visitor, self.key)) } fn deserialize_map(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_map(CaptureKey::new(visitor, self.key)) } fn deserialize_struct( self, name: &'static str, fields: &'static [&'static str], visitor: V, ) -> Result where V: Visitor<'de>, { self.delegate .deserialize_struct(name, fields, CaptureKey::new(visitor, self.key)) } fn deserialize_enum( self, name: &'static str, variants: &'static [&'static str], visitor: V, ) -> Result where V: Visitor<'de>, { self.delegate .deserialize_enum(name, variants, CaptureKey::new(visitor, self.key)) } fn deserialize_ignored_any(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_ignored_any(CaptureKey::new(visitor, self.key)) } fn deserialize_identifier(self, visitor: V) -> Result where V: Visitor<'de>, { self.delegate .deserialize_identifier(CaptureKey::new(visitor, self.key)) } fn is_human_readable(&self) -> bool { self.delegate.is_human_readable() } } // Forwarding impl except `visit_str` and `visit_string` which save the string. impl<'a, 'de, X> Visitor<'de> for CaptureKey<'a, X> where X: Visitor<'de>, { type Value = X::Value; fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { self.delegate.expecting(formatter) } fn visit_bool(self, v: bool) -> Result where E: de::Error, { self.delegate.visit_bool(v) } fn visit_i8(self, v: i8) -> Result where E: de::Error, { self.delegate.visit_i8(v) } fn visit_i16(self, v: i16) -> Result where E: de::Error, { self.delegate.visit_i16(v) } fn visit_i32(self, v: i32) -> Result where E: de::Error, { self.delegate.visit_i32(v) } fn visit_i64(self, v: i64) -> Result where E: de::Error, { self.delegate.visit_i64(v) } fn visit_u8(self, v: u8) -> Result where E: de::Error, { self.delegate.visit_u8(v) } fn visit_u16(self, v: u16) -> Result where E: de::Error, { self.delegate.visit_u16(v) } fn visit_u32(self, v: u32) -> Result where E: de::Error, { self.delegate.visit_u32(v) } fn visit_u64(self, v: u64) -> Result where E: de::Error, { self.delegate.visit_u64(v) } serde_if_integer128! { fn visit_i128(self, v: i128) -> Result where E: de::Error, { self.delegate.visit_i128(v) } fn visit_u128(self, v: u128) -> Result where E: de::Error, { self.delegate.visit_u128(v) } } fn visit_f32(self, v: f32) -> Result where E: de::Error, { self.delegate.visit_f32(v) } fn visit_f64(self, v: f64) -> Result where E: de::Error, { self.delegate.visit_f64(v) } fn visit_char(self, v: char) -> Result where E: de::Error, { self.delegate.visit_char(v) } fn visit_str(self, v: &str) -> Result where E: de::Error, { *self.key = Some(v.to_owned()); self.delegate.visit_str(v) } fn visit_borrowed_str(self, v: &'de str) -> Result where E: de::Error, { *self.key = Some(v.to_owned()); self.delegate.visit_borrowed_str(v) } fn visit_string(self, v: String) -> Result where E: de::Error, { *self.key = Some(v.clone()); self.delegate.visit_string(v) } fn visit_unit(self) -> Result where E: de::Error, { self.delegate.visit_unit() } fn visit_none(self) -> Result where E: de::Error, { self.delegate.visit_none() } fn visit_some(self, deserializer: D) -> Result where D: de::Deserializer<'de>, { self.delegate.visit_some(deserializer) } fn visit_newtype_struct(self, deserializer: D) -> Result where D: de::Deserializer<'de>, { self.delegate.visit_newtype_struct(deserializer) } fn visit_seq(self, visitor: V) -> Result where V: de::SeqAccess<'de>, { self.delegate.visit_seq(visitor) } fn visit_map(self, visitor: V) -> Result where V: de::MapAccess<'de>, { self.delegate.visit_map(visitor) } fn visit_enum(self, visitor: V) -> Result where V: de::EnumAccess<'de>, { self.delegate.visit_enum(visitor) } fn visit_bytes(self, v: &[u8]) -> Result where E: de::Error, { self.delegate.visit_bytes(v) } fn visit_borrowed_bytes(self, v: &'de [u8]) -> Result where E: de::Error, { self.delegate.visit_borrowed_bytes(v) } fn visit_byte_buf(self, v: Vec) -> Result where E: de::Error, { self.delegate.visit_byte_buf(v) } } // Seed used for map values, sequence elements and newtype variants to track // their path. struct TrackedSeed<'a, 'b, X> { seed: X, chain: Chain<'a>, track: &'b Track, } impl<'a, 'b, X> TrackedSeed<'a, 'b, X> { fn new(seed: X, chain: Chain<'a>, track: &'b Track) -> Self { TrackedSeed { seed, chain, track } } } impl<'a, 'b, 'de, X> DeserializeSeed<'de> for TrackedSeed<'a, 'b, X> where X: DeserializeSeed<'de>, { type Value = X::Value; fn deserialize(self, deserializer: D) -> Result where D: de::Deserializer<'de>, { let chain = self.chain; let track = self.track; self.seed .deserialize(Deserializer { de: deserializer, chain: chain.clone(), track, }) .map_err(|err| track.trigger(&chain, err)) } } // Seq visitor that tracks the index of its elements. struct SeqAccess<'a, 'b, X> { delegate: X, chain: &'a Chain<'a>, index: usize, track: &'b Track, } impl<'a, 'b, X> SeqAccess<'a, 'b, X> { fn new(delegate: X, chain: &'a Chain<'a>, track: &'b Track) -> Self { SeqAccess { delegate, chain, index: 0, track, } } } // Forwarding impl to preserve context. impl<'a, 'b, 'de, X> de::SeqAccess<'de> for SeqAccess<'a, 'b, X> where X: de::SeqAccess<'de>, { type Error = X::Error; fn next_element_seed(&mut self, seed: T) -> Result, X::Error> where T: DeserializeSeed<'de>, { let parent = self.chain; let chain = Chain::Seq { parent, index: self.index, }; let track = self.track; self.index += 1; self.delegate .next_element_seed(TrackedSeed::new(seed, chain, track)) .map_err(|err| track.trigger(parent, err)) } fn size_hint(&self) -> Option { self.delegate.size_hint() } } // Map visitor that captures the string value of its keys and uses that to track // the path to its values. struct MapAccess<'a, 'b, X> { delegate: X, chain: &'a Chain<'a>, key: Option, track: &'b Track, } impl<'a, 'b, X> MapAccess<'a, 'b, X> { fn new(delegate: X, chain: &'a Chain<'a>, track: &'b Track) -> Self { MapAccess { delegate, chain, key: None, track, } } } impl<'a, 'b, 'de, X> de::MapAccess<'de> for MapAccess<'a, 'b, X> where X: de::MapAccess<'de>, { type Error = X::Error; fn next_key_seed(&mut self, seed: K) -> Result, X::Error> where K: DeserializeSeed<'de>, { let chain = self.chain; let track = self.track; let key = &mut self.key; self.delegate .next_key_seed(CaptureKey::new(seed, key)) .map_err(|err| { let chain = match key.take() { Some(key) => Chain::Map { parent: chain, key }, None => Chain::NonStringKey { parent: chain }, }; track.trigger(&chain, err) }) } fn next_value_seed(&mut self, seed: V) -> Result where V: DeserializeSeed<'de>, { let parent = self.chain; let chain = match self.key.take() { Some(key) => Chain::Map { parent, key }, None => Chain::NonStringKey { parent }, }; let track = self.track; self.delegate .next_value_seed(TrackedSeed::new(seed, chain, track)) .map_err(|err| track.trigger(parent, err)) } fn size_hint(&self) -> Option { self.delegate.size_hint() } } serde_path_to_error-0.1.9/src/lib.rs000064400000000000000000000114061046102023000155710ustar 00000000000000//! [![github]](https://github.com/dtolnay/path-to-error) [![crates-io]](https://crates.io/crates/serde_path_to_error) [![docs-rs]](https://docs.rs/serde_path_to_error) //! //! [github]: https://img.shields.io/badge/github-8da0cb?style=for-the-badge&labelColor=555555&logo=github //! [crates-io]: https://img.shields.io/badge/crates.io-fc8d62?style=for-the-badge&labelColor=555555&logo=rust //! [docs-rs]: https://img.shields.io/badge/docs.rs-66c2a5?style=for-the-badge&labelColor=555555&logo=docs.rs //! //!
//! //! Find out the path at which a deserialization error occurred. This crate //! provides a wrapper that works with any existing Serde `Deserializer` and //! exposes the chain of field names leading to the error. //! //! # Example //! //! ``` //! # use serde_derive::Deserialize; //! # //! use serde::Deserialize; //! use std::collections::BTreeMap as Map; //! //! #[derive(Deserialize)] //! struct Package { //! name: String, //! dependencies: Map, //! } //! //! #[derive(Deserialize)] //! struct Dependency { //! version: String, //! } //! //! fn main() { //! let j = r#"{ //! "name": "demo", //! "dependencies": { //! "serde": { //! "version": 1 //! } //! } //! }"#; //! //! // Some Deserializer. //! let jd = &mut serde_json::Deserializer::from_str(j); //! //! let result: Result = serde_path_to_error::deserialize(jd); //! match result { //! Ok(_) => panic!("expected a type error"), //! Err(err) => { //! let path = err.path().to_string(); //! assert_eq!(path, "dependencies.serde.version"); //! } //! } //! } //! ``` #![doc(html_root_url = "https://docs.rs/serde_path_to_error/0.1.9")] #![allow( clippy::doc_link_with_quotes, // https://github.com/rust-lang/rust-clippy/issues/8961 clippy::iter_not_returning_iterator, // https://github.com/rust-lang/rust-clippy/issues/8285 clippy::missing_errors_doc, clippy::module_name_repetitions, clippy::must_use_candidate, clippy::new_without_default )] mod de; mod path; mod ser; mod wrap; use std::cell::Cell; use std::error::Error as StdError; use std::fmt::{self, Display}; pub use crate::de::{deserialize, Deserializer}; pub use crate::path::{Path, Segment, Segments}; pub use crate::ser::{serialize, Serializer}; /// Original deserializer error together with the path at which it occurred. #[derive(Clone, Debug)] pub struct Error { path: Path, original: E, } impl Error { /// Element path at which this deserialization error occurred. pub fn path(&self) -> &Path { &self.path } /// The Deserializer's underlying error that occurred. pub fn into_inner(self) -> E { self.original } /// Reference to the Deserializer's underlying error that occurred. pub fn inner(&self) -> &E { &self.original } } impl Display for Error { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "{}: {}", self.path(), self.inner()) } } impl StdError for Error { fn source(&self) -> Option<&(dyn StdError + 'static)> { Some(self.inner()) } } /// State for bookkeeping across nested deserializer calls. /// /// You don't need this if you are using `serde_path_to_error::deserializer`. If /// you are managing your own `Deserializer`, see the usage example on /// [`Deserializer`]. pub struct Track { path: Cell>, } impl Track { /// Empty state with no error having happened yet. pub fn new() -> Self { Track { path: Cell::new(None), } } /// Gets path at which the error occurred. Only meaningful after we know /// that an error has occurred. Returns an empty path otherwise. pub fn path(self) -> Path { self.path.into_inner().unwrap_or_else(Path::empty) } #[inline] fn trigger(&self, chain: &Chain, err: E) -> E { self.trigger_impl(chain); err } fn trigger_impl(&self, chain: &Chain) { self.path.set(Some(match self.path.take() { Some(already_set) => already_set, None => Path::from_chain(chain), })); } } #[derive(Clone)] enum Chain<'a> { Root, Seq { parent: &'a Chain<'a>, index: usize, }, Map { parent: &'a Chain<'a>, key: String, }, Struct { parent: &'a Chain<'a>, key: &'static str, }, Enum { parent: &'a Chain<'a>, variant: String, }, Some { parent: &'a Chain<'a>, }, NewtypeStruct { parent: &'a Chain<'a>, }, NewtypeVariant { parent: &'a Chain<'a>, }, NonStringKey { parent: &'a Chain<'a>, }, } serde_path_to_error-0.1.9/src/path.rs000064400000000000000000000066551046102023000157710ustar 00000000000000use std::fmt::{self, Display}; use std::slice; use super::Chain; /// Path to the error value in the input, like `dependencies.serde.typo1`. /// /// Use `path.to_string()` to get a string representation of the path with /// segments separated by periods, or use `path.iter()` to iterate over /// individual segments of the path. #[derive(Clone, Debug)] pub struct Path { segments: Vec, } /// Single segment of a path. #[derive(Clone, Debug)] pub enum Segment { Seq { index: usize }, Map { key: String }, Enum { variant: String }, Unknown, } impl Path { /// Returns an iterator with element type [`&Segment`][Segment]. pub fn iter(&self) -> Segments { Segments { iter: self.segments.iter(), } } } impl<'a> IntoIterator for &'a Path { type Item = &'a Segment; type IntoIter = Segments<'a>; fn into_iter(self) -> Self::IntoIter { self.iter() } } /// Iterator over segments of a path. pub struct Segments<'a> { iter: slice::Iter<'a, Segment>, } impl<'a> Iterator for Segments<'a> { type Item = &'a Segment; fn next(&mut self) -> Option { self.iter.next() } } impl Display for Path { fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result { if self.segments.is_empty() { return formatter.write_str("."); } let mut separator = ""; for segment in self { match segment { Segment::Seq { index } => { write!(formatter, "[{}]", index)?; } Segment::Map { key } | Segment::Enum { variant: key } => { write!(formatter, "{}{}", separator, key)?; } Segment::Unknown => { write!(formatter, "{}?", separator)?; } } separator = "."; } Ok(()) } } impl Path { pub(crate) fn empty() -> Self { Path { segments: Vec::new(), } } pub(crate) fn from_chain(mut chain: &Chain) -> Self { let mut segments = Vec::new(); loop { match chain { Chain::Root => break, Chain::Seq { parent, index } => { segments.push(Segment::Seq { index: *index }); chain = parent; } Chain::Map { parent, key } => { segments.push(Segment::Map { key: key.clone() }); chain = parent; } Chain::Struct { parent, key } => { let key = *key; segments.push(Segment::Map { key: key.to_owned(), }); chain = parent; } Chain::Enum { parent, variant } => { segments.push(Segment::Enum { variant: variant.clone(), }); chain = parent; } Chain::Some { parent } | Chain::NewtypeStruct { parent } | Chain::NewtypeVariant { parent } => { chain = parent; } Chain::NonStringKey { parent } => { segments.push(Segment::Unknown); chain = parent; } } } segments.reverse(); Path { segments } } } serde_path_to_error-0.1.9/src/ser.rs000064400000000000000000000666421046102023000156300ustar 00000000000000use crate::wrap::Wrap; use crate::{Chain, Error, Track}; use serde::ser::{self, Serialize}; use serde::serde_if_integer128; use std::cell::Cell; use std::fmt::Display; /// Entry point for tracking path to Serialize error. /// /// # Example /// /// ``` /// # use serde_derive::Serialize; /// # /// use serde::Serialize; /// use std::cell::RefCell; /// /// #[derive(Serialize)] /// struct Outer<'a> { /// k: Inner<'a>, /// } /// /// #[derive(Serialize)] /// struct Inner<'a> { /// refcell: &'a RefCell, /// } /// /// let refcell = RefCell::new(String::new()); /// let value = Outer { /// k: Inner { refcell: &refcell }, /// }; /// /// // A RefCell cannot be serialized while it is still mutably borrowed. /// let _borrowed = refcell.borrow_mut(); /// /// // Some Serializer. /// let mut out = Vec::new(); /// let jser = &mut serde_json::Serializer::new(&mut out); /// /// let result = serde_path_to_error::serialize(&value, jser); /// match result { /// Ok(_) => panic!("expected failure to serialize RefCell"), /// Err(err) => { /// let path = err.path().to_string(); /// assert_eq!(path, "k.refcell"); /// } /// } /// ``` pub fn serialize(value: &T, serializer: S) -> Result> where T: ?Sized + Serialize, S: ser::Serializer, { let mut track = Track::new(); match T::serialize(value, Serializer::new(serializer, &mut track)) { Ok(ok) => Ok(ok), Err(err) => Err(Error { path: track.path(), original: err, }), } } /// Serializer adapter that records path to serialization errors. /// /// # Example /// /// ``` /// # use serde_derive::Serialize; /// # /// use serde::Serialize; /// use std::collections::BTreeMap; /// /// // Maps with a non-string key are not valid in JSON. /// let mut inner_map = BTreeMap::new(); /// inner_map.insert(vec!['w', 'a', 't'], 0); /// /// let mut outer_map = BTreeMap::new(); /// outer_map.insert("k", inner_map); /// /// // Some Serializer. /// let mut out = Vec::new(); /// let jser = &mut serde_json::Serializer::new(&mut out); /// /// let mut track = serde_path_to_error::Track::new(); /// let ps = serde_path_to_error::Serializer::new(jser, &mut track); /// /// match outer_map.serialize(ps) { /// Ok(_) => panic!("expected failure to serialize non-string key"), /// Err(_) => { /// let path = track.path().to_string(); /// assert_eq!(path, "k"); /// } /// } /// ``` pub struct Serializer<'a, 'b, S> { ser: S, chain: &'a Chain<'a>, track: &'b Track, } impl<'a, 'b, S> Serializer<'a, 'b, S> { pub fn new(ser: S, track: &'b mut Track) -> Self { Serializer { ser, chain: &Chain::Root, track, } } } impl<'a, 'b, S> ser::Serializer for Serializer<'a, 'b, S> where S: ser::Serializer, { type Ok = S::Ok; type Error = S::Error; type SerializeSeq = WrapSeq<'a, 'b, S::SerializeSeq>; type SerializeTuple = WrapSeq<'a, 'b, S::SerializeTuple>; type SerializeTupleStruct = WrapSeq<'a, 'b, S::SerializeTupleStruct>; type SerializeTupleVariant = WrapSeq<'a, 'b, S::SerializeTupleVariant>; type SerializeMap = WrapMap<'a, 'b, S::SerializeMap>; type SerializeStruct = Wrap<'a, 'b, S::SerializeStruct>; type SerializeStructVariant = Wrap<'a, 'b, S::SerializeStructVariant>; fn serialize_bool(self, v: bool) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_bool(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_i8(self, v: i8) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_i8(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_i16(self, v: i16) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_i16(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_i32(self, v: i32) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_i32(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_i64(self, v: i64) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_i64(v) .map_err(|err| track.trigger(chain, err)) } serde_if_integer128! { fn serialize_i128(self, v: i128) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_i128(v) .map_err(|err| track.trigger(chain, err)) } } fn serialize_u8(self, v: u8) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_u8(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_u16(self, v: u16) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_u16(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_u32(self, v: u32) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_u32(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_u64(self, v: u64) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_u64(v) .map_err(|err| track.trigger(chain, err)) } serde_if_integer128! { fn serialize_u128(self, v: u128) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_u128(v) .map_err(|err| track.trigger(chain, err)) } } fn serialize_f32(self, v: f32) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_f32(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_f64(self, v: f64) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_f64(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_char(self, v: char) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_char(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_str(self, v: &str) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_str(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_bytes(self, v: &[u8]) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_bytes(v) .map_err(|err| track.trigger(chain, err)) } fn serialize_none(self) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_none() .map_err(|err| track.trigger(chain, err)) } fn serialize_some(self, value: &T) -> Result where T: ?Sized + Serialize, { let chain = self.chain; let track = self.track; self.ser .serialize_some(value) .map_err(|err| track.trigger(chain, err)) } fn serialize_unit(self) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_unit() .map_err(|err| track.trigger(chain, err)) } fn serialize_unit_struct(self, name: &'static str) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_unit_struct(name) .map_err(|err| track.trigger(chain, err)) } fn serialize_unit_variant( self, name: &'static str, variant_index: u32, variant: &'static str, ) -> Result { let chain = self.chain; let track = self.track; self.ser .serialize_unit_variant(name, variant_index, variant) .map_err(|err| track.trigger(chain, err)) } fn serialize_newtype_struct( self, name: &'static str, value: &T, ) -> Result where T: ?Sized + Serialize, { let chain = self.chain; let track = self.track; self.ser .serialize_newtype_struct(name, value) .map_err(|err| track.trigger(chain, err)) } fn serialize_newtype_variant( self, name: &'static str, variant_index: u32, variant: &'static str, value: &T, ) -> Result where T: ?Sized + Serialize, { let chain = self.chain; let track = self.track; self.ser .serialize_newtype_variant(name, variant_index, variant, value) .map_err(|err| track.trigger(chain, err)) } fn serialize_seq(self, len: Option) -> Result { let chain = self.chain; let track = self.track; match self.ser.serialize_seq(len) { Ok(delegate) => Ok(WrapSeq::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn serialize_tuple(self, len: usize) -> Result { let chain = self.chain; let track = self.track; match self.ser.serialize_tuple(len) { Ok(delegate) => Ok(WrapSeq::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn serialize_tuple_struct( self, name: &'static str, len: usize, ) -> Result { let chain = self.chain; let track = self.track; match self.ser.serialize_tuple_struct(name, len) { Ok(delegate) => Ok(WrapSeq::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn serialize_tuple_variant( self, name: &'static str, variant_index: u32, variant: &'static str, len: usize, ) -> Result { let chain = self.chain; let track = self.track; match self .ser .serialize_tuple_variant(name, variant_index, variant, len) { Ok(delegate) => Ok(WrapSeq::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn serialize_map(self, len: Option) -> Result { let chain = self.chain; let track = self.track; match self.ser.serialize_map(len) { Ok(delegate) => Ok(WrapMap::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn serialize_struct( self, name: &'static str, len: usize, ) -> Result { let chain = self.chain; let track = self.track; match self.ser.serialize_struct(name, len) { Ok(delegate) => Ok(Wrap::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn serialize_struct_variant( self, name: &'static str, variant_index: u32, variant: &'static str, len: usize, ) -> Result { let chain = self.chain; let track = self.track; match self .ser .serialize_struct_variant(name, variant_index, variant, len) { Ok(delegate) => Ok(Wrap::new(delegate, chain, track)), Err(err) => Err(track.trigger(chain, err)), } } fn collect_str(self, value: &T) -> Result where T: ?Sized + Display, { let chain = self.chain; let track = self.track; self.ser .collect_str(value) .map_err(|err| track.trigger(chain, err)) } fn is_human_readable(&self) -> bool { self.ser.is_human_readable() } } struct TrackedValue<'a, 'b, X> { value: X, chain: &'a Chain<'a>, track: &'b Track, } impl<'a, 'b, X> TrackedValue<'a, 'b, X> { fn new(value: X, chain: &'a Chain<'a>, track: &'b Track) -> Self { TrackedValue { value, chain, track, } } } impl<'a, 'b, X> Serialize for TrackedValue<'a, 'b, X> where X: Serialize, { fn serialize(&self, serializer: S) -> Result where S: ser::Serializer, { let chain = self.chain; let track = self.track; self.value .serialize(Serializer { ser: serializer, chain, track, }) .map_err(|err| track.trigger(chain, err)) } } pub struct WrapSeq<'a, 'b, S> { delegate: S, chain: &'a Chain<'a>, index: usize, track: &'b Track, } impl<'a, 'b, S> WrapSeq<'a, 'b, S> { fn new(delegate: S, chain: &'a Chain<'a>, track: &'b Track) -> Self { WrapSeq { delegate, chain, index: 0, track, } } } impl<'a, 'b, S> ser::SerializeSeq for WrapSeq<'a, 'b, S> where S: ser::SerializeSeq, { type Ok = S::Ok; type Error = S::Error; fn serialize_element(&mut self, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = Chain::Seq { parent, index: self.index, }; let track = self.track; self.index += 1; self.delegate .serialize_element(&TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } } impl<'a, 'b, S> ser::SerializeTuple for WrapSeq<'a, 'b, S> where S: ser::SerializeTuple, { type Ok = S::Ok; type Error = S::Error; fn serialize_element(&mut self, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = Chain::Seq { parent, index: self.index, }; let track = self.track; self.index += 1; self.delegate .serialize_element(&TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } } impl<'a, 'b, S> ser::SerializeTupleStruct for WrapSeq<'a, 'b, S> where S: ser::SerializeTupleStruct, { type Ok = S::Ok; type Error = S::Error; fn serialize_field(&mut self, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = Chain::Seq { parent, index: self.index, }; let track = self.track; self.index += 1; self.delegate .serialize_field(&TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } } impl<'a, 'b, S> ser::SerializeTupleVariant for WrapSeq<'a, 'b, S> where S: ser::SerializeTupleVariant, { type Ok = S::Ok; type Error = S::Error; fn serialize_field(&mut self, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = Chain::Seq { parent, index: self.index, }; let track = self.track; self.index += 1; self.delegate .serialize_field(&TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } } pub struct WrapMap<'a, 'b, S> { delegate: S, chain: &'a Chain<'a>, key: Cell>, track: &'b Track, } impl<'a, 'b, S> WrapMap<'a, 'b, S> { fn new(delegate: S, chain: &'a Chain<'a>, track: &'b Track) -> Self { WrapMap { delegate, chain, key: Cell::new(None), track, } } } impl<'a, 'b, S> ser::SerializeMap for WrapMap<'a, 'b, S> where S: ser::SerializeMap, { type Ok = S::Ok; type Error = S::Error; fn serialize_key(&mut self, key: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let chain = self.chain; let track = self.track; self.key.set(None); self.delegate .serialize_key(&CaptureKey::new(&self.key, key)) .map_err(|err| track.trigger(chain, err)) } fn serialize_value(&mut self, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = match self.key.take() { Some(key) => Chain::Map { parent, key }, None => Chain::NonStringKey { parent }, }; let track = self.track; self.delegate .serialize_value(&TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } } impl<'a, 'b, S> ser::SerializeStruct for Wrap<'a, 'b, S> where S: ser::SerializeStruct, { type Ok = S::Ok; type Error = S::Error; fn serialize_field(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = Chain::Struct { parent, key }; let track = self.track; self.delegate .serialize_field(key, &TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } fn skip_field(&mut self, key: &'static str) -> Result<(), Self::Error> { let chain = self.chain; let track = self.track; self.delegate .skip_field(key) .map_err(|err| track.trigger(chain, err)) } } impl<'a, 'b, S> ser::SerializeStructVariant for Wrap<'a, 'b, S> where S: ser::SerializeStructVariant, { type Ok = S::Ok; type Error = S::Error; fn serialize_field(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where T: ?Sized + Serialize, { let parent = self.chain; let chain = Chain::Struct { parent, key }; let track = self.track; self.delegate .serialize_field(key, &TrackedValue::new(value, &chain, track)) .map_err(|err| track.trigger(parent, err)) } fn end(self) -> Result { let chain = self.chain; let track = self.track; self.delegate.end().map_err(|err| track.trigger(chain, err)) } fn skip_field(&mut self, key: &'static str) -> Result<(), Self::Error> { let chain = self.chain; let track = self.track; self.delegate .skip_field(key) .map_err(|err| track.trigger(chain, err)) } } struct CaptureKey<'a, T> { out: &'a Cell>, delegate: T, } impl<'a, T> CaptureKey<'a, T> { fn new(out: &'a Cell>, delegate: T) -> Self { CaptureKey { out, delegate } } } impl<'a, T> Serialize for CaptureKey<'a, T> where T: Serialize, { fn serialize(&self, serializer: S) -> Result where S: ser::Serializer, { self.delegate .serialize(CaptureKey::new(self.out, serializer)) } } impl<'a, S> ser::Serializer for CaptureKey<'a, S> where S: ser::Serializer, { type Ok = S::Ok; type Error = S::Error; type SerializeSeq = S::SerializeSeq; type SerializeTuple = S::SerializeTuple; type SerializeTupleStruct = S::SerializeTupleStruct; type SerializeTupleVariant = S::SerializeTupleVariant; type SerializeMap = S::SerializeMap; type SerializeStruct = S::SerializeStruct; type SerializeStructVariant = S::SerializeStructVariant; fn serialize_bool(self, v: bool) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_bool(v) } fn serialize_i8(self, v: i8) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_i8(v) } fn serialize_i16(self, v: i16) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_i16(v) } fn serialize_i32(self, v: i32) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_i32(v) } fn serialize_i64(self, v: i64) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_i64(v) } serde_if_integer128! { fn serialize_i128(self, v: i128) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_i128(v) } } fn serialize_u8(self, v: u8) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_u8(v) } fn serialize_u16(self, v: u16) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_u16(v) } fn serialize_u32(self, v: u32) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_u32(v) } fn serialize_u64(self, v: u64) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_u64(v) } serde_if_integer128! { fn serialize_u128(self, v: u128) -> Result { self.out.set(Some(v.to_string())); self.delegate.serialize_u128(v) } } fn serialize_f32(self, v: f32) -> Result { self.delegate.serialize_f32(v) } fn serialize_f64(self, v: f64) -> Result { self.delegate.serialize_f64(v) } fn serialize_char(self, v: char) -> Result { self.delegate.serialize_char(v) } fn serialize_str(self, v: &str) -> Result { self.out.set(Some(v.to_owned())); self.delegate.serialize_str(v) } fn serialize_bytes(self, v: &[u8]) -> Result { self.delegate.serialize_bytes(v) } fn serialize_none(self) -> Result { self.delegate.serialize_none() } fn serialize_some(self, value: &T) -> Result where T: ?Sized + Serialize, { self.delegate .serialize_some(&CaptureKey::new(self.out, value)) } fn serialize_unit(self) -> Result { self.delegate.serialize_unit() } fn serialize_unit_struct(self, name: &'static str) -> Result { self.delegate.serialize_unit_struct(name) } fn serialize_unit_variant( self, name: &'static str, variant_index: u32, variant: &'static str, ) -> Result { self.out.set(Some(variant.to_owned())); self.delegate .serialize_unit_variant(name, variant_index, variant) } fn serialize_newtype_struct( self, name: &'static str, value: &T, ) -> Result where T: ?Sized + Serialize, { self.delegate .serialize_newtype_struct(name, &CaptureKey::new(self.out, value)) } fn serialize_newtype_variant( self, name: &'static str, variant_index: u32, variant: &'static str, value: &T, ) -> Result where T: ?Sized + Serialize, { self.delegate .serialize_newtype_variant(name, variant_index, variant, value) } fn serialize_seq(self, len: Option) -> Result { self.delegate.serialize_seq(len) } fn serialize_tuple(self, len: usize) -> Result { self.delegate.serialize_tuple(len) } fn serialize_tuple_struct( self, name: &'static str, len: usize, ) -> Result { self.delegate.serialize_tuple_struct(name, len) } fn serialize_tuple_variant( self, name: &'static str, variant_index: u32, variant: &'static str, len: usize, ) -> Result { self.delegate .serialize_tuple_variant(name, variant_index, variant, len) } fn serialize_map(self, len: Option) -> Result { self.delegate.serialize_map(len) } fn serialize_struct( self, name: &'static str, len: usize, ) -> Result { self.delegate.serialize_struct(name, len) } fn serialize_struct_variant( self, name: &'static str, variant_index: u32, variant: &'static str, len: usize, ) -> Result { self.delegate .serialize_struct_variant(name, variant_index, variant, len) } fn collect_seq(self, iter: I) -> Result where I: IntoIterator, I::Item: Serialize, { self.delegate.collect_seq(iter) } fn collect_map(self, iter: I) -> Result where K: Serialize, V: Serialize, I: IntoIterator, { self.delegate.collect_map(iter) } fn collect_str(self, value: &T) -> Result where T: ?Sized + Display, { self.out.set(Some(value.to_string())); self.delegate.collect_str(value) } fn is_human_readable(&self) -> bool { self.delegate.is_human_readable() } } serde_path_to_error-0.1.9/src/wrap.rs000064400000000000000000000015331046102023000157740ustar 00000000000000use crate::{Chain, Track}; // Wrapper that attaches context to a `Visitor`, `SeqAccess` or `EnumAccess`. pub struct Wrap<'a, 'b, X> { pub(crate) delegate: X, pub(crate) chain: &'a Chain<'a>, pub(crate) track: &'b Track, } // Wrapper that attaches context to a `VariantAccess`. pub struct WrapVariant<'a, 'b, X> { pub(crate) delegate: X, pub(crate) chain: Chain<'a>, pub(crate) track: &'b Track, } impl<'a, 'b, X> Wrap<'a, 'b, X> { pub(crate) fn new(delegate: X, chain: &'a Chain<'a>, track: &'b Track) -> Self { Wrap { delegate, chain, track, } } } impl<'a, 'b, X> WrapVariant<'a, 'b, X> { pub(crate) fn new(delegate: X, chain: Chain<'a>, track: &'b Track) -> Self { WrapVariant { delegate, chain, track, } } } serde_path_to_error-0.1.9/tests/deserialize.rs000064400000000000000000000101501046102023000176710ustar 00000000000000#![allow(clippy::unreadable_literal, dead_code)] use serde::{serde_if_integer128, Deserialize}; use serde_derive::Deserialize; use std::collections::BTreeMap as Map; use std::fmt::Debug; fn test<'de, T>(json: &'de str, expected: &str) where T: Deserialize<'de> + Debug, { let de = &mut serde_json::Deserializer::from_str(json); let result: Result = serde_path_to_error::deserialize(de); let path = result.unwrap_err().path().to_string(); assert_eq!(path, expected); } #[test] fn test_struct() { #[derive(Deserialize, Debug)] struct Package { name: String, dependencies: Map, } #[derive(Deserialize, Debug)] struct Dependency { version: String, } let j = r#"{ "name": "demo", "dependencies": { "serde": { "version": 1 } } }"#; test::(j, "dependencies.serde.version"); } #[test] fn test_vec() { #[derive(Deserialize, Debug)] struct Package { dependencies: Vec, } #[derive(Deserialize, Debug)] struct Dependency { name: String, version: String, } let j = r#"{ "dependencies": [ { "name": "serde", "version": "1.0" }, { "name": "serde_json", "version": 1 } } }"#; test::(j, "dependencies[1].version"); } #[test] fn test_option() { #[derive(Deserialize, Debug)] struct Package { dependency: Option, } #[derive(Deserialize, Debug)] struct Dependency { version: String, } let j = r#"{ "dependency": { "version": 1 } }"#; test::(j, "dependency.version"); } #[test] fn test_struct_variant() { #[derive(Deserialize, Debug)] struct Package { dependency: Dependency, } #[derive(Deserialize, Debug)] enum Dependency { Struct { version: String }, } let j = r#"{ "dependency": { "Struct": { "version": 1 } } }"#; test::(j, "dependency.Struct.version"); } #[test] fn test_tuple_variant() { #[derive(Deserialize, Debug)] struct Package { dependency: Dependency, } #[derive(Deserialize, Debug)] enum Dependency { Tuple(String, String), } let j = r#"{ "dependency": { "Tuple": ["serde", 1] } }"#; test::(j, "dependency.Tuple[1]"); } #[test] fn test_unknown_field() { #[derive(Deserialize, Debug)] struct Package { dependency: Dependency, } #[derive(Deserialize, Debug)] #[serde(deny_unknown_fields)] struct Dependency { version: String, } let j = r#"{ "dependency": { "version": "1.0", "name": "serde" } }"#; test::(j, "dependency.name"); } #[test] fn test_invalid_length() { #[derive(Deserialize, Debug)] struct Package { dependency: Dependency, } #[derive(Deserialize, Debug)] struct Dependency(String, String); let j = r#"{ "dependency": ["serde"] }"#; test::(j, "dependency"); } #[test] fn test_syntax_error() { #[derive(Deserialize, Debug)] struct Package { dependency: Dependency, } #[derive(Deserialize, Debug)] struct Dependency { version: String, } let j = r#"{ "dependency": { "error": * }"#; test::(j, "dependency.error"); } serde_if_integer128! { #[test] fn test_u128() { #[derive(Deserialize, Debug)] struct Container { n: u128, } let j = r#"{ "n": 130033514578017493995102500318550798591 }"#; let de = &mut serde_json::Deserializer::from_str(j); let container: Container = serde_path_to_error::deserialize(de).expect("failed to deserialize"); assert_eq!(container.n, 130033514578017493995102500318550798591u128); } } serde_path_to_error-0.1.9/tests/serialize.rs000064400000000000000000000021041046102023000173600ustar 00000000000000use serde::Serialize; use serde_derive::Serialize; use std::cell::RefCell; use std::collections::BTreeMap; use std::fmt::Debug; fn test(value: &T, expected: &str) where T: ?Sized + Serialize + Debug, { let mut out = Vec::new(); let ser = &mut serde_json::Serializer::new(&mut out); let result = serde_path_to_error::serialize(value, ser); let path = result.unwrap_err().path().to_string(); assert_eq!(path, expected); } #[test] fn test_refcell_already_borrowed() { #[derive(Serialize, Debug)] struct Outer<'a> { k: Inner<'a>, } #[derive(Serialize, Debug)] struct Inner<'a> { refcell: &'a RefCell, } let refcell = RefCell::new(String::new()); let outer = Outer { k: Inner { refcell: &refcell }, }; let _borrowed = refcell.borrow_mut(); test(&outer, "k.refcell"); } #[test] fn test_map_nonstring_key() { let mut inner_map = BTreeMap::new(); inner_map.insert(b"", 0); let mut outer_map = BTreeMap::new(); outer_map.insert("k", inner_map); test(&outer_map, "k"); }