Merge #872

872: simplify trait bounds r=matklad a=matklad



Co-authored-by: Aleksey Kladov <[email protected]>

1 files changed, 0 insertions, 83 deletions

diff --git a/crates/ra_syntax/src/utils.rs b/crates/ra_syntax/src/utils.rs
deleted file mode 100644
index 2e1b42da0..000000000
--- a/crates/ra_syntax/src/utils.rs
+++ /dev/null
@@ -1,83 +0,0 @@
-use std::{str, fmt::Write};
-
-use crate::{SourceFile, SyntaxKind, WalkEvent, AstNode, SyntaxNode};
-
-/// Parse a file and create a string representation of the resulting parse tree.
-pub fn dump_tree(syntax: &SyntaxNode) -> String {
-    let mut errors: Vec<_> = match syntax.ancestors().find_map(SourceFile::cast) {
-        Some(file) => file.errors(),
-        None => syntax.root_data().to_vec(),
-    };
-    errors.sort_by_key(|e| e.offset());
-    let mut err_pos = 0;
-    let mut level = 0;
-    let mut buf = String::new();
-    macro_rules! indent {
-        () => {
-            for _ in 0..level {
-                buf.push_str("  ");
-            }
-        };
-    }
-
-    for event in syntax.preorder() {
-        match event {
-            WalkEvent::Enter(node) => {
-                indent!();
-                writeln!(buf, "{:?}", node).unwrap();
-                if node.first_child().is_none() {
-                    let off = node.range().end();
-                    while err_pos < errors.len() && errors[err_pos].offset() <= off {
-                        indent!();
-                        writeln!(buf, "err: `{}`", errors[err_pos]).unwrap();
-                        err_pos += 1;
-                    }
-                }
-                level += 1;
-            }
-            WalkEvent::Leave(_) => level -= 1,
-        }
-    }
-
-    assert_eq!(level, 0);
-    for err in errors[err_pos..].iter() {
-        writeln!(buf, "err: `{}`", err).unwrap();
-    }
-
-    buf
-}
-
-pub fn check_fuzz_invariants(text: &str) {
-    let file = SourceFile::parse(text);
-    let root = file.syntax();
-    validate_block_structure(root);
-    let _ = file.errors();
-}
-
-pub(crate) fn validate_block_structure(root: &SyntaxNode) {
-    let mut stack = Vec::new();
-    for node in root.descendants() {
-        match node.kind() {
-            SyntaxKind::L_CURLY => stack.push(node),
-            SyntaxKind::R_CURLY => {
-                if let Some(pair) = stack.pop() {
-                    assert_eq!(
-                        node.parent(),
-                        pair.parent(),
-                        "\nunpaired curleys:\n{}\n{}\n",
-                        root.text(),
-                        dump_tree(root),
-                    );
-                    assert!(
-                        node.next_sibling().is_none() && pair.prev_sibling().is_none(),
-                        "\nfloating curlys at {:?}\nfile:\n{}\nerror:\n{}\n",
-                        node,
-                        root.text(),
-                        node.text(),
-                    );
-                }
-            }
-            _ => (),
-        }
-    }
-}