# Phase 2: Cross-File Analysis
#
# Components to implement:
# - ASTParser: Python ast module wrapper
# - GraphBuilder: Node/edge creation
# - TaintSourceDetector: Flask/FastAPI/Django patterns
# - SinkDetector: SQL/command/eval patterns
# - TaintTracker: BFS/DFS path finding
# - SanitizerDetector: Safe function detection
#
# Graph storage: In-memory dict for MVP, networkx for Phase 2


async def build_project_graph(project_path: str) -> dict:
    raise NotImplementedError("Phase 2: Graph analysis not implemented")


async def find_cross_file_vulnerabilities(graph: dict) -> list:
    raise NotImplementedError("Phase 2: Graph analysis not implemented")


class ASTParser:
    pass


class GraphBuilder:
    pass


class TaintSourceDetector:
    pass


class SinkDetector:
    pass


class TaintTracker:
    pass


class SanitizerDetector:
    pass
