substrait_explain/parser/
errors.rs

1use thiserror::Error;
2
3use super::MessageParseError;
4use super::extensions::ExtensionParseError;
5use crate::extensions::registry::ExtensionError;
6
7/// Context for parse errors and warnings
8#[derive(Debug, Clone)]
9pub struct ParseContext {
10    pub line_no: i64,
11    pub line: String,
12}
13
14impl ParseContext {
15    pub fn new(line_no: i64, line: String) -> Self {
16        Self { line_no, line }
17    }
18}
19
20impl std::fmt::Display for ParseContext {
21    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
22        write!(f, "line {}: '{}'", self.line_no, self.line)
23    }
24}
25
26/// Parse errors that prevent successful parsing
27#[derive(Debug, Clone, Error)]
28pub enum ParseError {
29    #[error("Error parsing extension on {0}: {1}")]
30    Extension(ParseContext, #[source] ExtensionParseError),
31
32    #[error("Error parsing extension detail on {0}: {1}")]
33    ExtensionDetail(ParseContext, #[source] ExtensionError),
34
35    #[error("Error parsing plan on {0}: {1}")]
36    Plan(ParseContext, #[source] MessageParseError),
37
38    #[error("Expected '{expected}' on {context}")]
39    Expected {
40        expected: &'static str,
41        context: ParseContext,
42    },
43
44    #[error("No relation found in plan")]
45    NoRelationFound,
46
47    #[error("Unregistered extension '{name}' on {context}")]
48    UnregisteredExtension { name: String, context: ParseContext },
49
50    #[error("Failed to parse relation on {0}: {1}")]
51    RelationParse(ParseContext, String),
52
53    #[error("Unknown extension relation type: {0}")]
54    UnknownExtensionRelationType(String),
55
56    #[error("Validation error: {0}")]
57    ValidationError(String),
58
59    #[error("Error parsing section header on line {0}: {1}")]
60    Initial(ParseContext, #[source] MessageParseError),
61
62    #[error("Error parsing relation: {0}")]
63    Relation(ParseContext, #[source] MessageParseError),
64}
65
66/// Result type for the public Parser API
67pub type ParseResult = Result<substrait::proto::Plan, ParseError>;
substrait_explain/parser/errors.rs

substrait_explain/parser/
errors.rs
