summaryrefslogtreecommitdiffstats
path: root/gfx/angle/src/compiler/preprocessor/Input.h
diff options
context:
space:
mode:
Diffstat (limited to 'gfx/angle/src/compiler/preprocessor/Input.h')
-rwxr-xr-xgfx/angle/src/compiler/preprocessor/Input.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/gfx/angle/src/compiler/preprocessor/Input.h b/gfx/angle/src/compiler/preprocessor/Input.h
new file mode 100755
index 000000000..ecbb04962
--- /dev/null
+++ b/gfx/angle/src/compiler/preprocessor/Input.h
@@ -0,0 +1,66 @@
+//
+// Copyright (c) 2011 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#ifndef COMPILER_PREPROCESSOR_INPUT_H_
+#define COMPILER_PREPROCESSOR_INPUT_H_
+
+#include <cstddef>
+#include <vector>
+
+namespace pp
+{
+
+// Holds and reads input for Lexer.
+class Input
+{
+ public:
+ Input();
+ Input(size_t count, const char *const string[], const int length[]);
+
+ size_t count() const
+ {
+ return mCount;
+ }
+ const char *string(size_t index) const
+ {
+ return mString[index];
+ }
+ size_t length(size_t index) const
+ {
+ return mLength[index];
+ }
+
+ size_t read(char *buf, size_t maxSize, int *lineNo);
+
+ struct Location
+ {
+ size_t sIndex; // String index;
+ size_t cIndex; // Char index.
+
+ Location()
+ : sIndex(0),
+ cIndex(0)
+ {
+ }
+ };
+ const Location &readLoc() const { return mReadLoc; }
+
+ private:
+ // Skip a character and return the next character after the one that was skipped.
+ // Return nullptr if data runs out.
+ const char *skipChar();
+
+ // Input.
+ size_t mCount;
+ const char * const *mString;
+ std::vector<size_t> mLength;
+
+ Location mReadLoc;
+};
+
+} // namespace pp
+
+#endif // COMPILER_PREPROCESSOR_INPUT_H_