1 files changed, 0 insertions, 78 deletions

diff --git a/crates/ra_syntax/src/validation.rs b/crates/ra_syntax/src/validation.rs
deleted file mode 100644
index 009f5052f..000000000
--- a/crates/ra_syntax/src/validation.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-use crate::{
-    algo::visit::{visitor_ctx, VisitorCtx},
-    ast::{self, AstNode},
-    File,
-    string_lexing::{self, CharComponentKind},
-    yellow::{
-        SyntaxError,
-        SyntaxErrorKind::*,
-    },
-};
-
-pub(crate) fn validate(file: &File) -> Vec<SyntaxError> {
-    let mut errors = Vec::new();
-    for node in file.root.borrowed().descendants() {
-        let _ = visitor_ctx(&mut errors)
-            .visit::<ast::Char, _>(validate_char)
-            .accept(node);
-    }
-    errors
-}
-
-fn validate_char(node: ast::Char, errors: &mut Vec<SyntaxError>) {
-    let mut components = string_lexing::parse_char_literal(node.text());
-    let mut len = 0;
-    for component in &mut components {
-        len += 1;
-
-        // Validate escapes
-        let text = &node.text()[component.range];
-        let range = component.range + node.syntax().range().start();
-        use self::CharComponentKind::*;
-        match component.kind {
-            AsciiEscape => {
-                if text.len() == 1 {
-                    // Escape sequence consists only of leading `\`
-                    errors.push(SyntaxError::new(EmptyAsciiEscape, range));
-                } else {
-                    let escape_code = text.chars().skip(1).next().unwrap();
-                    if !is_ascii_escape(escape_code) {
-                        errors.push(SyntaxError::new(InvalidAsciiEscape, range));
-                    }
-                }
-            }
-            AsciiCodeEscape => {
-                // TODO:
-                // * First digit is octal
-                // * Second digit is hex
-            }
-            UnicodeEscape => {
-                // TODO:
-                // * Only hex digits or underscores allowed
-                // * Max 6 chars
-                // * Within allowed range (must be at most 10FFFF)
-            }
-            // Code points are always valid
-            CodePoint => (),
-        }
-    }
-
-    if !components.has_closing_quote {
-        errors.push(SyntaxError::new(UnclosedChar, node.syntax().range()));
-    }
-
-    if len == 0 {
-        errors.push(SyntaxError::new(EmptyChar, node.syntax().range()));
-    }
-
-    if len > 1 {
-        errors.push(SyntaxError::new(LongChar, node.syntax().range()));
-    }
-}
-
-fn is_ascii_escape(code: char) -> bool {
-    match code {
-        '\'' | '"' | 'n' | 'r' | 't' | '0' => true,
-        _ => false,
-    }
-}