Compiler Singleton Pattern Detection and Optimization
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Solution Overview
Problem
In object-oriented programming, identifying and optimizing singleton classes is challenging, as existing methods fail to efficiently convert classes using the singleton pattern into singleton classes, leading to suboptimal performance and memory usage.
Innovation Solution
A compiler system analyzes source code to determine if classes use the singleton pattern and performs optimizations such as de-virtualizing virtual functions and removing object pointers or references, even if the class is not explicitly defined as a singleton, thereby converting it into a singleton class for improved execution efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing methods are used to identify singleton classes, then the compiler can perform optimizations, but the methods fail to efficiently convert classes using the singleton pattern into actual singleton classes
Solution Approach 1:
The compiler system automatically detects classes following the singleton pattern and converts them to actual singleton classes without requiring explicit programmer annotations. The system serves itself by analyzing constructor calls and inheritance relationships to identify singleton candidates and applying optimizations accordingly.
Solution Approach 2:
The patent replaces manual singleton class definition mechanisms with an automated compiler-based detection and conversion system. Instead of relying on programmer expertise to explicitly mark singleton classes, the system uses mechanical analysis of constructor behavior and inheritance patterns to automatically identify and optimize singleton classes.
2Ease of manufacture
If classes are not explicitly defined as singleton, then the code remains flexible and easy to modify, but memory usage and execution time increase
Solution Approach 1:
The compiler performs preliminary analysis of the source code to detect singleton patterns before the program executes. By identifying singleton candidates in advance through constructor call analysis and inheritance relationship tracking, the system prepares optimized singleton class definitions that will reduce memory usage during execution while maintaining the original code's flexibility.
3Measurement precision
If the compiler performs extensive analysis to detect singleton patterns, then optimization accuracy improves, but compilation time increases
Solution Approach 1:
The compiler applies partial analysis by focusing only on the essential aspects of singleton detection - specifically analyzing constructor calls and inheritance relationships - rather than performing a complete exhaustive analysis of all code paths. This partial action approach achieves sufficient detection accuracy while minimizing the time required during compilation.
Data Source
AI summary
A compiler system analyzes source code for an application. The compiler system determines whether a class in the source code uses a singleton pattern even though the class is not defined as singleton class. The compiler system may optionally convert the class to a singleton class. The compiler system may also perform one or more optimizations when generating the application based on the source code.