Function extractInterfacesFromFile

extractInterfacesFromFile(filePath: string): Map<string, ParsedInterface>
Extracts all TypeScript interface definitions from a source file
Parameters
- filePath: string
  Absolute path to the TypeScript file to parse
Returns Map<string, ParsedInterface>
Map of interface names to their parsed definitions
Description
This function reads and parses a TypeScript file to extract all interface definitions. It handles complex nested structures, inheritance, and caches results for performance. The function is resilient to parsing errors and will log warnings for problematic files.
Example: Basic file parsing
```
const interfaces = extractInterfacesFromFile('/src/types/user.ts');
console.log(interfaces.get('UserProfile'));
// Returns: { name: 'UserProfile', properties: [...], extends: undefined }
```
Example: Handling multiple interfaces
```
const interfaces = extractInterfacesFromFile('/src/types/api.ts');
for (const [name, definition] of interfaces) {
  console.log(`Found interface: ${name} with ${definition.properties.length} properties`);
}
```
Throws
Logs warning and returns empty Map if file cannot be read or parsed

Public
Since
4.0.0
- Defined in core/utils/typescript-parser.ts:122