On Wed, 2016-08-24 at 21:13 -0400, David Malcolm wrote: > Changed in v2: I dropped -fdiagnostics-apply-fixits > > This patch uses the edit_context machinery to provide a new > -fdiagnostics-generate-patch option. > > If set an edit_context is created for global_dc, and any > fix-it hints emitted by diagnostics are added to the edit_context. > > -fdiagnostics-generate-patch writes out a patch to stderr in unified > diff format. This is potentially color-coded, following the same > rules > as for diagnostics (and affected by -fdiagnostics-color). The color > scheme mimics that of git-diff. > gcc/ChangeLog: > * common.opt (fdiagnostics-generate-patch): New option. > * diagnostic.c: Include "edit-context.h". > (diagnostic_initialize): Initialize context->edit_context_ptr. > (diagnostic_finish): Delete context->edit_context_ptr. > (diagnostic_report_diagnostic): Add fix-it hints from the > diagnostic to context->edit_context_ptr, if any. > * diagnostic.h (class edit_context): Add forward decl. > (struct diagnostic_context): Add field "edit_context_ptr". > * doc/invoke.texi (Diagnostic Message Formatting Options): Add > -fdiagnostics-generate-patch. > (-fdiagnostics-generate-patch): New item. > * toplev.c: Include "edit-context.h". > (process_options): Set global_dc->edit_context_ptr to a new > edit_context if the options need one. > (toplev::main): Handle -fdiagnostics-generate-patch by using > global_dc->edit_context_ptr. > > gcc/testsuite/ChangeLog: > * gcc.dg/plugin/diagnostic-test-show-locus-generate-patch.c: > New > test case. > * gcc.dg/plugin/plugin.exp (plugin_test_list): Add > diagnostic-test-show-locus-generate-patch.c to the sources > for diagnostic_plugin_test_show_locus.c.
The prerequisites are in, so I've committed this to trunk (as r239965), having verified bootstrap®rtest on x86_64-pc-linux-gnu.
