fix skslc splitting escape sequences in half

Bug: skia:
Change-Id: I810c4e77664bffb711969fb513f396646972f66e
Reviewed-on: https://skia-review.googlesource.com/65100
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/sksl/SkSLCPPCodeGenerator.cpp b/src/sksl/SkSLCPPCodeGenerator.cpp
index 3f1d15669d..506daa8b4f 100644
--- a/src/sksl/SkSLCPPCodeGenerator.cpp
+++ b/src/sksl/SkSLCPPCodeGenerator.cpp
@@ -475,6 +475,9 @@ void CPPCodeGenerator::writeCodeAppend(const String& code) {
                 if (code[index + 1] != '%') {
                     ++argCount;
                 }
+            } else if ('\\' == code[index] && index == start + maxChunkSize - 1) {
+                // avoid splitting an escape sequence that happens to fall across a chunk boundary
+                break;
             }
             ++index;
         }