From 313314e14b629ebf50389dbd2d440bda922f6ae7 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 7 May 2019 19:38:26 +0300
Subject: share literal validation logic with compiler

---
 crates/ra_syntax/src/validation/string.rs | 154 ------------------------------
 1 file changed, 154 deletions(-)
 delete mode 100644 crates/ra_syntax/src/validation/string.rs

(limited to 'crates/ra_syntax/src/validation/string.rs')

diff --git a/crates/ra_syntax/src/validation/string.rs b/crates/ra_syntax/src/validation/string.rs
deleted file mode 100644
index fc2f1b992..000000000
--- a/crates/ra_syntax/src/validation/string.rs
+++ /dev/null
@@ -1,154 +0,0 @@
-use crate::{
-    string_lexing,
-    SyntaxError,
-    SyntaxErrorKind::*,
-    SyntaxToken,
-};
-
-use super::char;
-
-pub(crate) fn validate_string_node(node: SyntaxToken, errors: &mut Vec<SyntaxError>) {
-    let literal_text = node.text();
-    let literal_range = node.range();
-    let mut components = string_lexing::parse_quoted_literal(None, '"', literal_text);
-    for component in &mut components {
-        let range = component.range + literal_range.start();
-
-        // Chars must escape \t, \n and \r codepoints, but strings don't
-        let text = &literal_text[component.range];
-        match text {
-            "\t" | "\n" | "\r" => { /* always valid */ }
-            _ => char::validate_char_component(text, component.kind, range, errors),
-        }
-    }
-
-    if !components.has_closing_quote {
-        errors.push(SyntaxError::new(UnclosedString, literal_range));
-    }
-
-    if let Some(range) = components.suffix {
-        errors.push(SyntaxError::new(InvalidSuffix, range + literal_range.start()));
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use crate::{SourceFile, TreeArc};
-
-    fn build_file(literal: &str) -> TreeArc<SourceFile> {
-        let src = format!(r#"const S: &'static str = "{}";"#, literal);
-        println!("Source: {}", src);
-        SourceFile::parse(&src)
-    }
-
-    fn assert_valid_str(literal: &str) {
-        let file = build_file(literal);
-        assert!(file.errors().len() == 0, "Errors for literal '{}': {:?}", literal, file.errors());
-    }
-
-    fn assert_invalid_str(literal: &str) {
-        let file = build_file(literal);
-        assert!(file.errors().len() > 0);
-    }
-
-    #[test]
-    fn test_ansi_codepoints() {
-        for byte in 0..=255u8 {
-            match byte {
-                b'\"' | b'\\' => { /* Ignore string close and backslash */ }
-                _ => assert_valid_str(&(byte as char).to_string()),
-            }
-        }
-    }
-
-    #[test]
-    fn test_unicode_codepoints() {
-        let valid = ["Ƒ", "バ", "メ", "﷽"];
-        for c in &valid {
-            assert_valid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_unicode_multiple_codepoints() {
-        let valid = ["नी", "👨‍👨‍"];
-        for c in &valid {
-            assert_valid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_valid_ascii_escape() {
-        let valid = [r"\'", r#"\""#, r"\\", r"\n", r"\r", r"\t", r"\0", "a", "b"];
-        for c in &valid {
-            assert_valid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_invalid_ascii_escape() {
-        let invalid = [r"\a", r"\?", r"\"];
-        for c in &invalid {
-            assert_invalid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_valid_ascii_code_escape() {
-        let valid = [r"\x00", r"\x7F", r"\x55"];
-        for c in &valid {
-            assert_valid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_invalid_ascii_code_escape() {
-        let invalid = [r"\x", r"\x7", r"\xF0"];
-        for c in &invalid {
-            assert_invalid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_valid_unicode_escape() {
-        let valid = [r"\u{FF}", r"\u{0}", r"\u{F}", r"\u{10FFFF}", r"\u{1_0__FF___FF_____}"];
-        for c in &valid {
-            assert_valid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_invalid_unicode_escape() {
-        let invalid = [
-            r"\u",
-            r"\u{}",
-            r"\u{",
-            r"\u{FF",
-            r"\u{FFFFFF}",
-            r"\u{_F}",
-            r"\u{00FFFFF}",
-            r"\u{110000}",
-        ];
-        for c in &invalid {
-            assert_invalid_str(c);
-        }
-    }
-
-    #[test]
-    fn test_mixed() {
-        assert_valid_str(
-            r"This is the tale of a string
-with a newline in between, some emoji (👨‍👨‍) here and there,
-unicode escapes like this: \u{1FFBB} and weird stuff like
-this ﷽",
-        );
-    }
-
-    #[test]
-    fn test_ignore_newline() {
-        assert_valid_str(
-            "Hello \
-             World",
-        );
-    }
-}
-- 
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