Description

From #43013

The Ballerina compiler currently includes all imported modules in their entirety within the final executable JAR. However, these modules may contain unused constructs that bloat the final size. This project proposes an optimization to remove these unused parts, resulting in several benefits:

• Smaller final executable JAR: Reduced file size improves storage efficiency and distribution.
• Faster GraalVM native image build: Less code translates to quicker build times.
• Smaller GraalVM native image executable: A more compact native image improves deployment efficiency.
• Potential startup time improvements: A smaller executable might lead to faster program startup.

This project is driven by the substantial benefits it brings to GraalVM native image builds. We've achieved significant improvements in both build time (up to 15.95% faster) and executable size (up to 20.9% smaller). See the attached performance comparison in the Samples section for detailed results.

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-> Compilation

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