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Graph Analysis Example

Overview

This example demonstrates vallm's code graph analysis capabilities, including import/call graph building and structural regression detection.

What it Tests

  • Import graph analysis: Tracks module dependencies
  • Call graph building: Maps function call relationships
  • Structural diffing: Compares code versions for changes
  • Breaking change detection: Identifies potentially breaking modifications

Code Samples

The example analyzes two versions of the same codebase:

  1. Before code - Simple implementation with:

    • Basic imports (os, json, pathlib)
    • Simple functions for config reading and data processing
    • Direct function calls

  2. After code - Enhanced version with:

    • Updated imports (json, yaml, dataclasses)
    • Dataclass for structured config
    • Additional validation function
    • Modified function signatures

Running the Example

cd 04_graph_analysis
python main.py

Expected Output

  • Import graphs showing module dependencies
  • Function and class inventories
  • Call relationship mappings
  • Structural diff highlighting:
    • Added/removed imports and functions
    • Breaking change warnings
    • Change impact analysis

Analysis Data

After running, analysis results will be saved in the .vallm/ folder within this directory, including:

  • Graph representations (imports, calls, functions)
  • Diff reports and change summaries
  • Breaking change assessments
  • Structural impact analysis