8a97807d68
I hit the "quotes in an RSP file" issue when trying to compile gRPC using "zig cc". As a fun exercise, I decided to see if I could fix it myself. I'm fully open to this code being flat-out rejected. Or I can take feedback to fix it up. This modifies (and renames) _ArgIteratorWindows_ in process.zig such that it works with arbitrary strings (or the contents of an RSP file). In main.zig, this new _ArgIteratorGeneral_ is used to address the "TODO" listed in _ClangArgIterator_. This change closes #4833. **Pros:** - It has the nice attribute of handling "RSP file" arguments in the same way it handles "cmd_line" arguments. - High Performance, minimal allocations - Fixed bug in previous _ArgIteratorWindows_, where final trailing backslashes in a command line were entirely dropped - Added a test case for the above bug - Harmonized the _ArgIteratorXxxx._initWithAllocator()_ and _next()_ interface across Windows/Posix/Wasi (Moved Windows errors to _initWithAllocator()_ rather than _next()_) - Likely perf benefit on Windows by doing _utf16leToUtf8AllocZ()_ only once for the entire cmd_line **Cons:** - Breaking Change in std library on Windows: Call _ArgIterator.initWithAllocator()_ instead of _ArgIterator.init()_ - PhaseMage is new with contributions to Zig, might need a lot of hand-holding - PhaseMage is a Windows person, non-Windows stuff will need to be double-checked **Testing Done:** - Wrote a few new test cases in process.zig - zig.exe build test -Dskip-release (no new failures seen) - zig cc now builds gRPC without error
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