tree 86e26a5f389ef0133e1bac8f32569fd93a0bbe93
parent 97f4e0fe1959f1d72332a6cd1cf5edff8d653136
author Lei Zhang <antiagainst@google.com> 1462227114 -0400
committer Lei Zhang <antiagainst@google.com> 1462457706 -0400

Avoid printing to stdout directly in library functions.

Previously GlslangToSpv() reported missing/TBD functionalities
by directly writing to stdout using printf. That could cause
problems to callers of GlslangToSpv(). This patch cleans up
the error reporting logic in GlslangToSpv(), TGlslangToSpvTraverser,
and spv::Builder a little bit to use ostringstream.

Also fixed the usage of GlslangToSpv() in GTest fixtures to
capture warnings/errors reported when translating AST to SPIR-V.