feat: Add Signal Flow Analysis (C3.10) and Test Framework Detection
Comprehensive Godot signal analysis and test framework support: ## Signal Flow Analysis (C3.10) Enhanced GDScript analyzer to extract: - Signal declarations with documentation comments - Signal connections (.connect() calls) - Signal emissions (.emit() calls) - Signal flow chains (source → signal → handler) Created SignalFlowAnalyzer class: - Analyzes 208 signals, 634 connections, 298 emissions (Cosmic Ideler) - Detects event patterns: - EventBus Pattern (centralized event system) - Observer Pattern (multi-connected signals) - Event Chains (cascading signal emissions) - Generates: - signal_flow.json (full analysis data) - signal_flow.mmd (Mermaid diagram) - signal_reference.md (human-readable docs) Statistics: - Signal density calculation (signals per file) - Most connected signals ranking - Most emitted signals ranking ## Test Framework Detection Added support for 3 Godot test frameworks: - **GUT** (Godot Unit Test) - extends GutTest, test_* functions - **gdUnit4** - @suite and @test annotations - **WAT** (WizAds Test) - extends WAT.Test Detection results (Cosmic Ideler): - 20 GUT test files - 396 test cases detected ## Integration Updated codebase_scraper.py: - Signal flow analysis runs automatically for Godot projects - Test framework detection integrated into code analysis - SKILL.md shows signal statistics and test framework info - New section: 📡 Signal Flow Analysis (C3.10) ## Results (Tested on Cosmic Ideler) - 443/452 files analyzed (98%) - 208 signals documented - 634 signal connections mapped - 298 signal emissions tracked - 3 event patterns detected (EventBus, Observer, Event Chains) - 20 GUT test files found with 396 test cases Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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yusyus
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src/skill_seekers/cli/signal_flow_analyzer.py
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src/skill_seekers/cli/signal_flow_analyzer.py
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"""
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Signal Flow Analyzer for Godot Projects (C3.10)
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Analyzes signal connections, emissions, and event flow patterns
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in Godot GDScript projects.
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"""
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import json
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from pathlib import Path
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from typing import Any
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from collections import defaultdict
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class SignalFlowAnalyzer:
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"""Analyzes signal flow patterns in Godot projects."""
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def __init__(self, analysis_results: dict[str, Any]):
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"""
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Initialize with code analysis results.
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Args:
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analysis_results: Dict containing analyzed files with signal data
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"""
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self.files = analysis_results.get("files", [])
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self.signal_declarations = {} # signal_name -> [file, params, docs]
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self.signal_connections = defaultdict(list) # signal -> [handlers]
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self.signal_emissions = defaultdict(list) # signal -> [locations]
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self.signal_flow_chains = [] # [(source, signal, target)]
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def analyze(self) -> dict[str, Any]:
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"""
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Perform signal flow analysis.
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Returns:
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Dict containing signal flow analysis results
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"""
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self._extract_signals()
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self._extract_connections()
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self._extract_emissions()
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self._build_flow_chains()
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self._detect_patterns()
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return {
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"signal_declarations": self.signal_declarations,
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"signal_connections": dict(self.signal_connections),
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"signal_emissions": dict(self.signal_emissions),
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"signal_flow_chains": self.signal_flow_chains,
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"patterns": self.patterns,
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"statistics": self._calculate_statistics(),
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}
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def _extract_signals(self):
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"""Extract all signal declarations."""
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for file_data in self.files:
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if file_data.get("language") != "GDScript":
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continue
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file_path = file_data["file"]
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signals = file_data.get("signals", [])
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for signal in signals:
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signal_name = signal["name"]
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self.signal_declarations[signal_name] = {
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"file": file_path,
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"parameters": signal.get("parameters", ""),
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"documentation": signal.get("documentation"),
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"line_number": signal.get("line_number", 0),
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}
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def _extract_connections(self):
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"""Extract all signal connections (.connect() calls)."""
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for file_data in self.files:
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if file_data.get("language") != "GDScript":
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continue
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file_path = file_data["file"]
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connections = file_data.get("signal_connections", [])
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for conn in connections:
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signal_path = conn["signal"]
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handler = conn["handler"]
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line = conn.get("line_number", 0)
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self.signal_connections[signal_path].append(
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{"handler": handler, "file": file_path, "line": line}
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)
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def _extract_emissions(self):
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"""Extract all signal emissions (.emit() calls)."""
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for file_data in self.files:
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if file_data.get("language") != "GDScript":
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continue
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file_path = file_data["file"]
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emissions = file_data.get("signal_emissions", [])
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for emission in emissions:
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signal_path = emission["signal"]
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args = emission.get("arguments", "")
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line = emission.get("line_number", 0)
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self.signal_emissions[signal_path].append(
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{"arguments": args, "file": file_path, "line": line}
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)
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def _build_flow_chains(self):
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"""Build signal flow chains (A emits -> B connects)."""
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# For each emission, find corresponding connections
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for signal, emissions in self.signal_emissions.items():
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if signal in self.signal_connections:
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connections = self.signal_connections[signal]
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for emission in emissions:
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for connection in connections:
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self.signal_flow_chains.append(
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{
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"signal": signal,
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"source": emission["file"],
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"target": connection["file"],
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"handler": connection["handler"],
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}
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)
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def _detect_patterns(self):
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"""Detect common signal usage patterns."""
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self.patterns = {}
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# EventBus pattern - signals on autoload/global scripts
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eventbus_signals = [
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sig
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for sig, data in self.signal_declarations.items()
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if "EventBus" in data["file"]
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or "autoload" in data["file"].lower()
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or "global" in data["file"].lower()
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]
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if eventbus_signals:
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self.patterns["EventBus Pattern"] = {
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"detected": True,
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"confidence": 0.9,
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"signals": eventbus_signals,
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"description": "Centralized event system using global signals",
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}
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# Observer pattern - signals with multiple connections
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multi_connected = {
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sig: len(conns)
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for sig, conns in self.signal_connections.items()
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if len(conns) >= 3
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}
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if multi_connected:
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self.patterns["Observer Pattern"] = {
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"detected": True,
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"confidence": 0.85,
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"signals": list(multi_connected.keys()),
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"description": f"{len(multi_connected)} signals with 3+ observers",
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}
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# Event chains - signals that trigger other signals
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chain_length = len(self.signal_flow_chains)
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if chain_length > 0:
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self.patterns["Event Chains"] = {
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"detected": True,
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"confidence": 0.8,
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"chain_count": chain_length,
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"description": "Signals that trigger other signal emissions",
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}
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def _calculate_statistics(self) -> dict[str, Any]:
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"""Calculate signal usage statistics."""
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total_signals = len(self.signal_declarations)
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total_connections = sum(
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len(conns) for conns in self.signal_connections.values()
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)
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total_emissions = sum(len(emits) for emits in self.signal_emissions.items())
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# Find most connected signals
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most_connected = sorted(
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self.signal_connections.items(), key=lambda x: len(x[1]), reverse=True
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)[:5]
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# Find most emitted signals
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most_emitted = sorted(
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self.signal_emissions.items(), key=lambda x: len(x[1]), reverse=True
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)[:5]
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# Signal density (signals per GDScript file)
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gdscript_files = sum(
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1 for f in self.files if f.get("language") == "GDScript"
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)
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signal_density = (
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total_signals / gdscript_files if gdscript_files > 0 else 0
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)
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return {
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"total_signals": total_signals,
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"total_connections": total_connections,
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"total_emissions": total_emissions,
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"signal_density": round(signal_density, 2),
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"gdscript_files": gdscript_files,
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"most_connected_signals": [
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{"signal": sig, "connection_count": len(conns)}
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for sig, conns in most_connected
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],
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"most_emitted_signals": [
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{"signal": sig, "emission_count": len(emits)}
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for sig, emits in most_emitted
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],
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}
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def generate_signal_flow_diagram(self) -> str:
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"""
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Generate a Mermaid diagram of signal flow.
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Returns:
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Mermaid diagram as string
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"""
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lines = ["```mermaid", "graph LR"]
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# Add signal nodes
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for i, signal in enumerate(self.signal_declarations.keys()):
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safe_signal = signal.replace("_", "")
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lines.append(f" {safe_signal}[({signal})]")
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# Add flow connections
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for chain in self.signal_flow_chains[:20]: # Limit to prevent huge diagrams
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signal = chain["signal"].replace("_", "")
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source = Path(chain["source"]).stem.replace("_", "")
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target = Path(chain["target"]).stem.replace("_", "")
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handler = chain["handler"].replace("_", "")
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lines.append(f" {source} -->|emit| {signal}")
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lines.append(f" {signal} -->|{handler}| {target}")
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lines.append("```")
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return "\n".join(lines)
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def save_analysis(self, output_dir: Path):
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"""
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Save signal flow analysis to files.
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Args:
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output_dir: Directory to save analysis results
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"""
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signal_dir = output_dir / "signals"
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signal_dir.mkdir(parents=True, exist_ok=True)
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analysis = self.analyze()
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# Save JSON analysis
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with open(signal_dir / "signal_flow.json", "w") as f:
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json.dump(analysis, f, indent=2)
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# Save signal reference markdown
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self._generate_signal_reference(signal_dir, analysis)
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# Save flow diagram
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diagram = self.generate_signal_flow_diagram()
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with open(signal_dir / "signal_flow.mmd", "w") as f:
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f.write(diagram)
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return signal_dir
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def _generate_signal_reference(self, output_dir: Path, analysis: dict):
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"""Generate human-readable signal reference."""
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lines = ["# Signal Reference\n"]
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# Statistics
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stats = analysis["statistics"]
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lines.append("## Statistics\n")
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lines.append(f"- **Total Signals**: {stats['total_signals']}")
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lines.append(f"- **Total Connections**: {stats['total_connections']}")
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lines.append(f"- **Total Emissions**: {stats['total_emissions']}")
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lines.append(
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f"- **Signal Density**: {stats['signal_density']} signals per file\n"
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)
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# Patterns
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if analysis["patterns"]:
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lines.append("## Detected Patterns\n")
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for pattern_name, pattern in analysis["patterns"].items():
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lines.append(f"### {pattern_name}")
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lines.append(f"- **Confidence**: {pattern['confidence']}")
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lines.append(f"- **Description**: {pattern['description']}\n")
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# Signal declarations
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lines.append("## Signal Declarations\n")
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for signal, data in analysis["signal_declarations"].items():
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lines.append(f"### `{signal}`")
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lines.append(f"- **File**: `{data['file']}`")
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if data["parameters"]:
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lines.append(f"- **Parameters**: `{data['parameters']}`")
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if data["documentation"]:
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lines.append(f"- **Documentation**: {data['documentation']}")
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lines.append("")
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# Most connected signals
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if stats["most_connected_signals"]:
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lines.append("## Most Connected Signals\n")
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for item in stats["most_connected_signals"]:
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lines.append(
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f"- **{item['signal']}**: {item['connection_count']} connections"
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)
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lines.append("")
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with open(output_dir / "signal_reference.md", "w") as f:
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f.write("\n".join(lines))
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