Commit graph

3 commits

Author SHA1 Message Date
Carl Worth
f28a105868 glsl/glcpp: Rename one test to avoid a duplicate test number
With two tests both numbered 118, there was a confusing off-by-two difference
between the last test number and the total number of tests (as reported by
glcpp-test).

With this rename, there's only an off-by-one difference left, (which is easy
to understand given the zero-based test numbering).

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2014-08-07 16:08:29 -07:00
Carl Worth
828686d4eb glsl/glcpp: Drop extra, final newline from most output
The glcpp parser is line-based, so it needs to see a NEWLINE token at the end
of each line. This causes a trick for files that end without a final newline.

Previously, the lexer for glcpp punted in this case by unconditionally
returning a NEWLINE token at end-of-file, (causing most files to have an extra
blank line at the end). Here, we refine this by lexing end-of-file as a
NEWLINE token only if the immediately preceding token was not a NEWLINE token.

The patch is a minor change that only looks huge for two reasons:

	1. Almost all glcpp test result ".expected" files are updated to drop
	   the extra newline.

	2. All return statements from the lexer are adjusted to use a new
	   RETURN_TOKEN macro that tracks the last-token-was-a-newline state.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2014-07-29 15:11:49 -07:00
Erik Faye-Lund
eb212c5a30 glcpp: error on multiple #else/#elif directives
The preprocessor currently accepts multiple else/elif-groups
per if-section. The GLSL-preprocessor is defined by the C++
specification, which defines the following parse-rule:

if-section:
	if-group elif-groups(opt) else-group(opt) endif-line

This clearly only allows a single else-group, that has to come
after any elif-groups.

So let's modify the code to follow the specification. Add test
to prevent regressions.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Carl Worth <cworth@cworth.org>

Cc: 10.0 <mesa-stable@lists.freedesktop.org>
2014-01-02 14:22:58 -08:00