John Stiles 8d3642e200 Add checkpointing functionality to the Parser. ... This allows us to roll the Parser back to an earlier state if we need to do so. This includes: - rewinding the lexer - restoring the previous Pushback node - backing out AST nodes - backing out errors This functionality is used to back out of parsing a vardecl if we discover mid-stream that it is actually an expression statement that coincidentally starts with the name of a type. Change-Id: Ia5feb45019693931c1e6870e3ff7a5398924c863 Bug: skia:11198 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/356997 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> Auto-Submit: John Stiles <johnstiles@google.com>		2021-01-22 16:42:33 +00:00
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blend	Squelch Metal warnings about unused _globals/_out.	2021-01-22 13:48:49 +00:00
errors	Enforce (valid) array sizes in many more places	2021-01-14 22:14:59 +00:00
folding	Add checkpointing functionality to the Parser.	2021-01-22 16:42:33 +00:00
fp	Update glsltype_string and type_to_grsltype to a complete set.	2021-01-20 14:35:15 +00:00
glsl	Replace array indexing on vector types with swizzles.	2020-12-07 21:16:40 +00:00
inliner	Reorder GLSL output so that functions are emitted last.	2021-01-15 23:15:46 +00:00
intrinsics	Squelch Metal warnings about unused _globals/_out.	2021-01-22 13:48:49 +00:00
metal	Squelch Metal warnings about unused _globals/_out.	2021-01-22 13:48:49 +00:00
runtime	Reland "Support indexing by loop variables in SkVMGenerator"	2021-01-19 22:33:46 +00:00
runtime_errors	Enforce ES2 limits on indexing expressions (in runtime effects)	2021-01-15 22:49:27 +00:00
shared	Squelch Metal warnings about unused _globals/_out.	2021-01-22 13:48:49 +00:00
spirv	Factor out SPIR-V typecasting helper functions.	2021-01-14 00:00:15 +00:00
workarounds	Reorder GLSL output so that functions are emitted last.	2021-01-15 23:15:46 +00:00