diff options
author | Aleksey Kladov <[email protected]> | 2018-07-30 13:25:52 +0100 |
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committer | Aleksey Kladov <[email protected]> | 2018-07-30 13:25:52 +0100 |
commit | 333e140a50658151002c9287aa68855358bedd56 (patch) | |
tree | 21cd482ab080b00d5b93ebaf8e9096644bafa4b3 /src/lib.rs | |
parent | d30a2e4fac9267066dc53d71c4695843f95e6269 (diff) |
Mior
Diffstat (limited to 'src/lib.rs')
-rw-r--r-- | src/lib.rs | 52 |
1 files changed, 2 insertions, 50 deletions
diff --git a/src/lib.rs b/src/lib.rs index 91d060169..f85ee1eef 100644 --- a/src/lib.rs +++ b/src/lib.rs | |||
@@ -27,6 +27,8 @@ mod lexer; | |||
27 | mod parser; | 27 | mod parser; |
28 | mod syntax_kinds; | 28 | mod syntax_kinds; |
29 | mod yellow; | 29 | mod yellow; |
30 | /// Utilities for simple uses of the parser. | ||
31 | pub mod utils; | ||
30 | 32 | ||
31 | pub use { | 33 | pub use { |
32 | lexer::{tokenize, Token}, | 34 | lexer::{tokenize, Token}, |
@@ -42,53 +44,3 @@ pub fn parse(text: String) -> SyntaxNode { | |||
42 | parser::parse::<yellow::GreenBuilder>(text, &tokens) | 44 | parser::parse::<yellow::GreenBuilder>(text, &tokens) |
43 | } | 45 | } |
44 | 46 | ||
45 | /// Utilities for simple uses of the parser. | ||
46 | pub mod utils { | ||
47 | use std::{collections::BTreeSet, fmt::Write}; | ||
48 | |||
49 | use {SyntaxError, SyntaxNode, SyntaxNodeRef}; | ||
50 | |||
51 | /// Parse a file and create a string representation of the resulting parse tree. | ||
52 | pub fn dump_tree_green(syntax: &SyntaxNode) -> String { | ||
53 | let syntax = syntax.borrow(); | ||
54 | let mut errors: BTreeSet<_> = syntax.root.errors.iter().cloned().collect(); | ||
55 | let mut result = String::new(); | ||
56 | go(syntax, &mut result, 0, &mut errors); | ||
57 | return result; | ||
58 | |||
59 | fn go( | ||
60 | node: SyntaxNodeRef, | ||
61 | buff: &mut String, | ||
62 | level: usize, | ||
63 | errors: &mut BTreeSet<SyntaxError>, | ||
64 | ) { | ||
65 | buff.push_str(&String::from(" ").repeat(level)); | ||
66 | write!(buff, "{:?}\n", node).unwrap(); | ||
67 | let my_errors: Vec<_> = errors | ||
68 | .iter() | ||
69 | .filter(|e| e.offset == node.range().start()) | ||
70 | .cloned() | ||
71 | .collect(); | ||
72 | for err in my_errors { | ||
73 | errors.remove(&err); | ||
74 | buff.push_str(&String::from(" ").repeat(level)); | ||
75 | write!(buff, "err: `{}`\n", err.message).unwrap(); | ||
76 | } | ||
77 | |||
78 | for child in node.children() { | ||
79 | go(child, buff, level + 1, errors) | ||
80 | } | ||
81 | |||
82 | let my_errors: Vec<_> = errors | ||
83 | .iter() | ||
84 | .filter(|e| e.offset == node.range().end()) | ||
85 | .cloned() | ||
86 | .collect(); | ||
87 | for err in my_errors { | ||
88 | errors.remove(&err); | ||
89 | buff.push_str(&String::from(" ").repeat(level)); | ||
90 | write!(buff, "err: `{}`\n", err.message).unwrap(); | ||
91 | } | ||
92 | } | ||
93 | } | ||
94 | } | ||