annotate-snippets 0.1.0

extern crate annotate_snippets;

use annotate_snippets::display_list::DisplayList;
use annotate_snippets::formatter::DisplayListFormatter;
use annotate_snippets::snippet::{Annotation, AnnotationType, Slice, Snippet, SourceAnnotation};

fn main() {
    let snippet = Snippet {
        slices: vec![
            Slice {
                source: r#") -> Option<String> {
    for ann in annotations {
        match (ann.range.0, ann.range.1) {
            (None, None) => continue,
            (Some(start), Some(end)) if start > end_index => continue,
            (Some(start), Some(end)) if start >= start_index => {
                let label = if let Some(ref label) = ann.label {
                    format!(" {}", label)
                } else {
                    String::from("")
                };

                return Some(format!(
                    "{}{}{}",
                    " ".repeat(start - start_index),
                    "^".repeat(end - start),
                    label
                ));
            }
            _ => continue,
        }
    }"#.to_string(),
                line_start: 51,
                origin: Some("src/format.rs".to_string()),
                fold: false,
                annotations: vec![
                    SourceAnnotation {
                        label: "expected `Option<String>` because of return type".to_string(),
                        annotation_type: AnnotationType::Warning,
                        range: (5, 19),
                    },
                    SourceAnnotation {
                        label: "expected enum `std::option::Option`".to_string(),
                        annotation_type: AnnotationType::Error,
                        range: (23, 745),
                    },
                ],
            },
        ],
        title: Some(Annotation {
            label: Some("mismatched types".to_string()),
            id: Some("E0308".to_string()),
            annotation_type: AnnotationType::Error,
        }),
        footer: vec![],
    };

    let dl = DisplayList::from(snippet);
    let dlf = DisplayListFormatter::new(true);
    println!("{}", dlf.format(&dl));
}