Platform & Define Compile Matrix Guard

Conditional code can stay broken for months because the active editor compiles only one platform and define set. Platform & Define Compile Matrix Guard reads the paths your project can reach, plans a bounded matrix, and compiles them with Unity's own compiler before the release branch exposes the problem.

What it helps you do

• Read asmdefs, define constraints, platform filters, C# preprocessor conditions, and package versions.
• Build a small covering matrix instead of testing every theoretical combination.
• Compile each configuration with Unity's Roslyn toolchain without switching the active build target.
• Name the exact condition, assembly, platform, defines, file, and compiler error.
• Detect impossible asmdef constraints, undefined symbols, and code paths no reachable configuration can compile.
• Cache clean cells, split the matrix into CI shards, and merge deterministic evidence.
• Export JSON, Markdown, and self-contained HTML reports.

Use it when platform-only code breaks late, feature defines multiply, asmdef constraints become hard to reason about, or one CI job cannot afford the whole matrix.

The tool compiles; it does not build, link, run, or certify a player. A clean matrix proves the planned compile cells passed, not that every possible define combination or platform runtime is correct.

Read the complete documentation.