Switch to the new SkSL lexer.

This completely replaces flex with a new in-house lexical analyzer generator,
which we have done for performance and memory usage reasons. Flex requires us
to copy strings every time we need the text of a token, whereas this new lexer
allows us to handle strings as a (non-null-terminated) pointer and length
everywhere, eliminating most string copies.

Bug: skia:
Change-Id: I2add26efc9e20cb699520e82abcf713af3968aca
Reviewed-on: https://skia-review.googlesource.com/39780
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/sksl/SkSLSPIRVCodeGenerator.h b/src/sksl/SkSLSPIRVCodeGenerator.h
index a532c9a3bc..eb6ec40a3f 100644
--- a/src/sksl/SkSLSPIRVCodeGenerator.h
+++ b/src/sksl/SkSLSPIRVCodeGenerator.h
@@ -241,19 +241,19 @@ private:
 
     void writeWord(int32_t word, OutputStream& out);
 
-    void writeString(const char* string, OutputStream& out);
+    void writeString(const char* string, size_t length, OutputStream& out);
 
     void writeLabel(SpvId id, OutputStream& out);
 
     void writeInstruction(SpvOp_ opCode, OutputStream& out);
 
-    void writeInstruction(SpvOp_ opCode, const char* string, OutputStream& out);
+    void writeInstruction(SpvOp_ opCode, StringFragment string, OutputStream& out);
 
     void writeInstruction(SpvOp_ opCode, int32_t word1, OutputStream& out);
 
-    void writeInstruction(SpvOp_ opCode, int32_t word1, const char* string, OutputStream& out);
+    void writeInstruction(SpvOp_ opCode, int32_t word1, StringFragment string, OutputStream& out);
 
-    void writeInstruction(SpvOp_ opCode, int32_t word1, int32_t word2, const char* string,
+    void writeInstruction(SpvOp_ opCode, int32_t word1, int32_t word2, StringFragment string,
                           OutputStream& out);
 
     void writeInstruction(SpvOp_ opCode, int32_t word1, int32_t word2, OutputStream& out);