feat(grit): syntax support for raw snippets in Grit queries (#3815)

crates/biome_grit_patterns/src/errors.rs

@@ -24,6 +24,9 @@ pub enum CompileError {
     /// A metavariable was expected at the given range.
     InvalidMetavariableRange(ByteRange),
 
+    /// Raw snippets are only allowed on the right-hand side of a rule.
+    InvalidRawSnippetPosition,
+
     /// Regular expressions are not allowed on the right-hand side of a rule.
     InvalidRegexPosition,
 
@@ -92,6 +95,9 @@ impl Diagnostic for CompileError {
             CompileError::InvalidMetavariableRange(_) => {
                 fmt.write_markup(markup! { "Invalid range for metavariable" })
             }
+            CompileError::InvalidRawSnippetPosition => {
+                fmt.write_markup(markup! { "Invalid range for metavariable" })
+            }
             CompileError::InvalidRegexPosition => fmt.write_markup(
                 markup! { "Regular expressions are not allowed on the right-hand side of a rule" },
             ),

crates/biome_grit_patterns/src/pattern_compiler/literal_compiler.rs

@@ -44,7 +44,17 @@ impl LiteralCompiler {
                     debug_assert!(source.len() >= 2, "Literals must have quotes");
                     parse_snippet_content(&source[1..source.len() - 1], range, context, is_rhs)
                 }
-                AnyGritCodeSnippetSource::GritRawBacktickSnippetLiteral(_) => todo!(),
+                AnyGritCodeSnippetSource::GritRawBacktickSnippetLiteral(node) => {
+                    if !is_rhs {
+                        return Err(CompileError::InvalidRawSnippetPosition);
+                    }
+
+                    let token = node.value_token()?;
+                    let source = token.text_trimmed();
+                    let range = token.text_trimmed_range().to_byte_range();
+                    debug_assert!(source.starts_with("raw`") && source.ends_with('`'));
+                    parse_snippet_content(&source[4..source.len() - 1], range, context, is_rhs)
+                }
             },
             AnyGritLiteral::GritDoubleLiteral(node) => Ok(Pattern::FloatConstant(
                 FloatConstant::new(node.value_token()?.text_trimmed().parse().map_err(|err| {

crates/biome_grit_patterns/tests/specs/ts/rawSnippet.grit

@@ -0,0 +1 @@
+`console.log($message)` => raw`if(' // I like broken code"`

crates/biome_grit_patterns/tests/specs/ts/rawSnippet.snap

@@ -0,0 +1,12 @@
+---
+source: crates/biome_grit_patterns/tests/spec_tests.rs
+expression: rawSnippet
+---
+SnapshotResult {
+    messages: [],
+    matched_ranges: [
+        "1:1-1:29",
+    ],
+    rewritten_files: [],
+    created_files: [],
+}

crates/biome_grit_patterns/tests/specs/ts/rawSnippet.ts

@@ -0,0 +1 @@
+console.log('Hello, world!');