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-rw-r--r--Source/WTF/wtf/CommaPrinter.h17
1 files changed, 11 insertions, 6 deletions
diff --git a/Source/WTF/wtf/CommaPrinter.h b/Source/WTF/wtf/CommaPrinter.h
index a8f3d3917..e6ab9e810 100644
--- a/Source/WTF/wtf/CommaPrinter.h
+++ b/Source/WTF/wtf/CommaPrinter.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2013 Apple Inc. All rights reserved.
+ * Copyright (C) 2013, 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -32,25 +32,30 @@ namespace WTF {
class CommaPrinter {
public:
- CommaPrinter(const char* comma = ", ")
+ CommaPrinter(const char* comma = ", ", const char* start = "")
: m_comma(comma)
- , m_isFirst(true)
+ , m_start(start)
+ , m_didPrint(false)
{
}
void dump(PrintStream& out) const
{
- if (m_isFirst) {
- m_isFirst = false;
+ if (!m_didPrint) {
+ out.print(m_start);
+ m_didPrint = true;
return;
}
out.print(m_comma);
}
+ bool didPrint() const { return m_didPrint; }
+
private:
const char* m_comma;
- mutable bool m_isFirst;
+ const char* m_start;
+ mutable bool m_didPrint;
};
} // namespace WTF