Silently ignore ---@module

Closes #39

extractor/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "moonwave-extractor"
-version = "0.1.0"
+name = "moonwave"
+version = "0.2.2"
 authors = ["eryn L. K. <[email protected]>"]
 edition = "2018"
 

extractor/src/source_file.rs

@@ -49,7 +49,21 @@ impl<'a> SourceFile<'a> {
                         ))
                     }
                     TokenType::SingleLineComment { comment } => {
-                        if comment.starts_with('-') {
+                        if let Some(comment) = comment.strip_prefix('-') {
+                            if comment.len() > 1 {
+                                if let Some(first_non_whitespace) =
+                                    comment.find(|char: char| !char.is_whitespace())
+                                {
+                                    // Compatibility: Drop lines like `---@module <path>` used
+                                    // for Roblox LSP comments (#39)
+                                    let tag_body = &comment[first_non_whitespace..];
+
+                                    if tag_body.starts_with("@module") {
+                                        return None;
+                                    }
+                                }
+                            }
+
                             self.buffer.push(token.into_owned());
                         } else {
                             return self.flush();

extractor/test-input/passing/drop_module.lua

@@ -0,0 +1,4 @@
+--- @module hello
+--- @class hi
+
+---@module hi

extractor/tests/snapshots/test_inputs__passing__drop_module.lua-stderr.snap

@@ -0,0 +1,6 @@
+---
+source: tests/test-inputs.rs
+expression: stderr
+
+---
+

extractor/tests/snapshots/test_inputs__passing__drop_module.lua-stdout.snap

@@ -0,0 +1,19 @@
+---
+source: tests/test-inputs.rs
+expression: stdout
+
+---
+[
+  {
+    "functions": [],
+    "properties": [],
+    "types": [],
+    "name": "hi",
+    "desc": "",
+    "source": {
+      "line": 3,
+      "path": ""
+    }
+  }
+]
+

extractor/tests/test-inputs.rs

@@ -46,6 +46,11 @@ fn class_with_index() -> anyhow::Result<()> {
     run_moonwave("passing/class_with_index.lua", 0)
 }
 
+#[test]
+fn drop_module() -> anyhow::Result<()> {
+    run_moonwave("passing/drop_module.lua", 0)
+}
+
 #[test]
 fn triple_dash_but_wrong() -> anyhow::Result<()> {
     run_moonwave("failing/triple_dash_but_wrong.lua", 1)