alt Hacker NewsI disagree. You'll be surprised to hear this, but source code... is just a very big string...
If you can run static analysis on that you can run static analysis on string literals. Much like how C will give you warnings for mismatched printf arguments.
You might be surprised to hear that most compilers and static analysis tools in general do not inspect (string and other) literals, while they do indeed inspect all the other parts and structure of the abstract syntax tree.