libgraphql_parser/
source_span.rs

1use crate::SourcePosition;
2use std::path::PathBuf;
3
4/// Represents a span of source text from start to end position.
5///
6/// The span is a half-open interval: `[start_inclusive, end_exclusive)`.
7/// - `start_inclusive`: Position of the first character of the source text
8/// - `end_exclusive`: Position immediately after the last character
9///
10/// Optionally includes a file path for the referenced source text.
11#[derive(Clone, Debug, Eq, PartialEq)]
12pub struct SourceSpan {
13    pub start_inclusive: SourcePosition,
14    pub end_exclusive: SourcePosition,
15    /// The file path to the source text this span refers to, if available.
16    pub file_path: Option<PathBuf>,
17}
18
19impl SourceSpan {
20    /// Returns `((start_line, start_col), (end_line, end_col))`
21    /// as 0-based `u32` tuples.
22    ///
23    /// Delegates to
24    /// [`SourcePosition::line_col()`](crate::SourcePosition::line_col)
25    /// on both endpoints.
26    pub fn line_col(&self) -> ((u32, u32), (u32, u32)) {
27        (self.start_inclusive.line_col(), self.end_exclusive.line_col())
28    }
29
30    /// Creates a span without file path information.
31    pub fn new(start: SourcePosition, end: SourcePosition) -> Self {
32        Self {
33            start_inclusive: start,
34            end_exclusive: end,
35            file_path: None,
36        }
37    }
38
39    /// Creates a span with file path information.
40    pub fn with_file(start: SourcePosition, end: SourcePosition, file_path: PathBuf) -> Self {
41        Self {
42            start_inclusive: start,
43            end_exclusive: end,
44            file_path: Some(file_path),
45        }
46    }
47
48    /// Creates a zero-position span with no file path.
49    ///
50    /// Used as a fallback when source position resolution is unavailable
51    /// (e.g. errors constructed without a `SourceMap`).
52    pub fn zero() -> Self {
53        let zero_pos = SourcePosition::new(0, 0, None, 0);
54        Self {
55            start_inclusive: zero_pos,
56            end_exclusive: zero_pos,
57            file_path: None,
58        }
59    }
60}
libgraphql_parser/source_span.rs

libgraphql_parser/
source_span.rs
