webui_parser/
error.rs

1// Copyright (c) Microsoft Corporation.
2// Licensed under the MIT license.
3
4//! Error handling for the WebUI parser.
5
6use crate::diagnostic::Diagnostic;
7use thiserror::Error;
8
9/// Result type for WebUI parser operations.
10pub type Result<T> = std::result::Result<T, ParserError>;
11
12/// Error type for WebUI parser.
13#[derive(Debug, Error)]
14pub enum ParserError {
15    /// Generic error.
16    #[error("Generic error: {0}")]
17    Generic(String),
18
19    /// I/O error with context.
20    #[error("I/O error: {context}")]
21    IO {
22        /// What operation failed.
23        context: String,
24        /// The underlying I/O error.
25        #[source]
26        source: std::io::Error,
27    },
28
29    /// Parse error.
30    #[error("Parse error: {0}")]
31    Parse(String),
32
33    /// Component error.
34    #[error("Component error: {0}")]
35    Component(String),
36
37    /// CSS error.
38    #[error("CSS error: {0}")]
39    Css(String),
40
41    /// HTML error.
42    #[error("HTML error: {0}")]
43    Html(String),
44
45    /// Directive error.
46    #[error("Directive error: {0}")]
47    Directive(String),
48
49    /// Entity not found error.
50    #[error("Not found: {0}")]
51    NotFound(String),
52
53    /// TypeScript parse error.
54    #[error("TypeScript parse error: {0}")]
55    TsParseError(String),
56
57    /// A build-time template-authoring mistake (e.g. an invalid `@event`
58    /// handler or a non-braced `w-ref`). Carries a structured [`Diagnostic`]
59    /// whose [`std::fmt::Display`] is an actionable, color-free report. The CLI
60    /// colorizes it; FFI/Node/WASM forward the plain text to their host error
61    /// channel so the application can handle it.
62    ///
63    /// The diagnostic is boxed so this cold error path does not enlarge
64    /// `Result<_, ParserError>` on the common success path.
65    #[error("{0}")]
66    Template(Box<Diagnostic>),
67}
68
69impl From<Diagnostic> for ParserError {
70    fn from(diagnostic: Diagnostic) -> Self {
71        ParserError::Template(Box::new(diagnostic))
72    }
73}
webui_parser/error.rs

webui_parser/
error.rs
