Function analyze_dir 

pub fn analyze_dir(
    path: impl AsRef<Path>,
) -> Result<JavaScriptAnalysis, JavaScriptAnalysisError>

Analyzes JavaScript or TypeScript source without executing the project or its dependencies.

The analyzed directory must have a locally resolvable typescript package. The embedded analyzer loads that compiler through Node’s module resolver anchored at the directory.

Errors

Returns JavaScriptAnalysisError when the directory is invalid, Node or TypeScript cannot be used, or the analyzer reports an actionable source-resolution failure.