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Make some methods const. The only interesting change here is that

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it changes raw_fd_ostream::preferred_buffer_size to return zero on
a scary stat failure instead of setting the stream to an error state.
This method really should not mutate the stream.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91740 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-12-19 01:38:42 +00:00
parent c63ca0a71b
commit cd0129f5a6
5 changed files with 28 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/llvm/Support/FormattedStream.h
View File

@@ -59,7 +59,7 @@ namespace llvm
/// current_pos - Return the current position within the stream,
/// not counting the bytes currently in the buffer.
virtual uint64_t current_pos() {
virtual uint64_t current_pos() const {
// This has the same effect as calling TheStream.current_pos(),
// but that interface is private.
return TheStream->tell() - TheStream->GetNumBytesInBuffer();

2
include/llvm/Support/raw_os_ostream.h
View File

@@ -30,7 +30,7 @@ class raw_os_ostream : public raw_ostream {
/// current_pos - Return the current position within the stream, not
/// counting the bytes currently in the buffer.
virtual uint64_t current_pos();
virtual uint64_t current_pos() const;
public:
raw_os_ostream(std::ostream &O) : OS(O) {}

18
include/llvm/Support/raw_ostream.h
View File

@@ -85,7 +85,7 @@ public:
virtual ~raw_ostream();
/// tell - Return the current offset with the file.
uint64_t tell() { return current_pos() + GetNumBytesInBuffer(); }
uint64_t tell() const { return current_pos() + GetNumBytesInBuffer(); }
/// has_error - Return the value of the flag in this raw_ostream indicating
/// whether an output error has been encountered.
@@ -116,7 +116,7 @@ public:
SetBufferAndMode(new char[Size], Size, InternalBuffer);
}
size_t GetBufferSize() {
size_t GetBufferSize() const {
// If we're supposed to be buffered but haven't actually gotten around
// to allocating the buffer yet, return the value that would be used.
if (BufferMode != Unbuffered && OutBufStart == 0)
@@ -269,7 +269,7 @@ private:
/// current_pos - Return the current position within the stream, not
/// counting the bytes currently in the buffer.
virtual uint64_t current_pos() = 0;
virtual uint64_t current_pos() const = 0;
protected:
/// SetBuffer - Use the provided buffer as the raw_ostream buffer. This is
@@ -282,7 +282,7 @@ protected:
/// preferred_buffer_size - Return an efficient buffer size for the
/// underlying output mechanism.
virtual size_t preferred_buffer_size();
virtual size_t preferred_buffer_size() const;
/// error_detected - Set the flag indicating that an output error has
/// been encountered.
@@ -325,10 +325,10 @@ class raw_fd_ostream : public raw_ostream {
/// current_pos - Return the current position within the stream, not
/// counting the bytes currently in the buffer.
virtual uint64_t current_pos() { return pos; }
virtual uint64_t current_pos() const { return pos; }
/// preferred_buffer_size - Determine an efficient buffer size.
virtual size_t preferred_buffer_size();
virtual size_t preferred_buffer_size() const;
public:
@@ -423,7 +423,7 @@ class raw_string_ostream : public raw_ostream {
/// current_pos - Return the current position within the stream, not
/// counting the bytes currently in the buffer.
virtual uint64_t current_pos() { return OS.size(); }
virtual uint64_t current_pos() const { return OS.size(); }
public:
explicit raw_string_ostream(std::string &O) : OS(O) {}
~raw_string_ostream();
@@ -447,7 +447,7 @@ class raw_svector_ostream : public raw_ostream {
/// current_pos - Return the current position within the stream, not
/// counting the bytes currently in the buffer.
virtual uint64_t current_pos();
virtual uint64_t current_pos() const;
public:
/// Construct a new raw_svector_ostream.
///
@@ -468,7 +468,7 @@ class raw_null_ostream : public raw_ostream {
/// current_pos - Return the current position within the stream, not
/// counting the bytes currently in the buffer.
virtual uint64_t current_pos();
virtual uint64_t current_pos() const;
public:
explicit raw_null_ostream() {}