Struct SourceRange

Source

pub struct SourceRange { /* private fields */ }

Implementations§

Source §

impl SourceRange

Source

pub fn new(start: SourceLocation, end: SourceLocation) -> SourceRange

Source

pub fn start(&self) -> SourceLocation

Examples found in repository ?

examples/explain.rs (line 66)

37fn main() {
38    let args: Vec<_> = std::env::args().collect();
39
40    if args.len() < 2 {
41        eprintln!("Usage: {} <prog> [bindings]", args[0]);
42        return;
43    }
44
45    let bindings: serde_json::Value = if args.len() == 3 {
46        serde_json::from_str(&args[2]).expect("Failed to parse bindings")
47    } else {
48        serde_json::from_str::<serde_json::Value>("{}").unwrap()
49    };
50
51    let prog = rscel::Program::from_source(&args[1]).expect("Failed to compile");
52    let ast = prog.details().ast().unwrap();
53
54    let dumper = AstDumper::new();
55    let tree = dumper.dump_expr_node(ast);
56
57    let mut queue = Vec::new();
58    queue.push((tree, 0));
59
60    while !queue.is_empty() {
61        let (curr_node, depth) = queue.pop().expect("wut");
62
63        // for now only handle one line
64        let range = curr_node.range();
65
66        let start = range.start().col();
67        let end = range.end().col();
68
69        let src = &args[1][start..end];
70
71        print!("{}{} => ", " ".to_owned().repeat(depth), src);
72        match eval(src, &bindings) {
73            Ok(val) => println!("{}", val),
74            Err(err) => println!("err: {}", err),
75        }
76
77        for node in curr_node.into_children().into_iter().rev() {
78            if node.range() != range {
79                queue.push((node, depth + 1));
80            }
81        }
82    }
83}

Source

pub fn end(&self) -> SourceLocation

Examples found in repository ?

examples/explain.rs (line 67)

37fn main() {
38    let args: Vec<_> = std::env::args().collect();
39
40    if args.len() < 2 {
41        eprintln!("Usage: {} <prog> [bindings]", args[0]);
42        return;
43    }
44
45    let bindings: serde_json::Value = if args.len() == 3 {
46        serde_json::from_str(&args[2]).expect("Failed to parse bindings")
47    } else {
48        serde_json::from_str::<serde_json::Value>("{}").unwrap()
49    };
50
51    let prog = rscel::Program::from_source(&args[1]).expect("Failed to compile");
52    let ast = prog.details().ast().unwrap();
53
54    let dumper = AstDumper::new();
55    let tree = dumper.dump_expr_node(ast);
56
57    let mut queue = Vec::new();
58    queue.push((tree, 0));
59
60    while !queue.is_empty() {
61        let (curr_node, depth) = queue.pop().expect("wut");
62
63        // for now only handle one line
64        let range = curr_node.range();
65
66        let start = range.start().col();
67        let end = range.end().col();
68
69        let src = &args[1][start..end];
70
71        print!("{}{} => ", " ".to_owned().repeat(depth), src);
72        match eval(src, &bindings) {
73            Ok(val) => println!("{}", val),
74            Err(err) => println!("err: {}", err),
75        }
76
77        for node in curr_node.into_children().into_iter().rev() {
78            if node.range() != range {
79                queue.push((node, depth + 1));
80            }
81        }
82    }
83}