aws_smithy_schema/schema/serde/
error.rs

1/*
2 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3 * SPDX-License-Identifier: Apache-2.0
4 */
5
6//! Error types for shape serialization and deserialization.
7
8use std::fmt;
9
10/// Error type for shape serialization and deserialization operations.
11#[derive(Debug)]
12#[non_exhaustive]
13pub enum SerdeError {
14    /// The data did not match the expected type described by the schema.
15    TypeMismatch {
16        /// Description of what was expected vs what was found.
17        message: String,
18    },
19    /// A required structure member was missing during deserialization.
20    MissingMember {
21        /// The name of the missing member.
22        member_name: String,
23    },
24    /// An unknown member was encountered during deserialization.
25    UnknownMember {
26        /// The name of the unknown member.
27        member_name: String,
28    },
29    /// The input data was malformed or invalid for the format.
30    InvalidInput {
31        /// Description of the problem.
32        message: String,
33    },
34    /// The operation is not supported by this serializer or deserializer.
35    UnsupportedOperation {
36        /// Description of what was attempted.
37        message: String,
38    },
39    /// An error occurred while writing output during serialization.
40    WriteFailed {
41        /// Description of the write failure.
42        message: String,
43    },
44    /// Catch-all for errors not covered by other variants.
45    Custom {
46        /// Explanatory message.
47        message: String,
48    },
49}
50
51impl fmt::Display for SerdeError {
52    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
53        match self {
54            SerdeError::TypeMismatch { message } => write!(f, "type mismatch: {message}"),
55            SerdeError::MissingMember { member_name } => {
56                write!(f, "missing required member: {member_name}")
57            }
58            SerdeError::UnknownMember { member_name } => {
59                write!(f, "unknown member: {member_name}")
60            }
61            SerdeError::InvalidInput { message } => write!(f, "invalid input: {message}"),
62            SerdeError::UnsupportedOperation { message } => {
63                write!(f, "unsupported operation: {message}")
64            }
65            SerdeError::WriteFailed { message } => write!(f, "write failed: {message}"),
66            SerdeError::Custom { message } => f.write_str(message),
67        }
68    }
69}
70
71impl std::error::Error for SerdeError {}
72
73impl SerdeError {
74    /// Creates a custom error with the given message.
75    pub fn custom(message: impl Into<String>) -> Self {
76        SerdeError::Custom {
77            message: message.into(),
78        }
79    }
80}
aws_smithy_schema/schema/serde/error.rs

aws_smithy_schema/schema/serde/
error.rs
