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提交 019af8d2 编写于 作者: L lfoltan
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8041620: Solaris Studio 12.4 C++ 5.13 change in behavior for placing friend... 

8041620: Solaris Studio 12.4 C++ 5.13 change in behavior for placing friend declarations within surrounding scope.
Summary: Remove adlc's unused class FileBuffRegion.
Reviewed-by: coleenp, dholmes, kvn
上级 c900615c
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Showing with 2 addition and 222 deletion
src/share/vm/adlc/filebuff.cpp
浏览文件 @ 019af8d2
/*
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -89,200 +89,6 @@ char *FileBuff::get_line(void) {
return retval;
}
//------------------------------FileBuffRegion---------------------------------
// Create a new region in a FileBuff.
FileBuffRegion::FileBuffRegion( FileBuff* bufr, int soln, int ln,
int off, int len)
: _bfr(bufr), _sol(soln), _line(ln), _offset(off), _length(len) {
_next = NULL; // No chained regions
}
//------------------------------~FileBuffRegion--------------------------------
// Delete the entire linked list of buffer regions.
FileBuffRegion::~FileBuffRegion() {
if( _next ) delete _next;
}
//------------------------------copy-------------------------------------------
// Deep copy a FileBuffRegion
FileBuffRegion *FileBuffRegion::copy() {
if( !this ) return NULL; // The empty buffer region
FileBuffRegion *br = new FileBuffRegion(_bfr,_sol,_line,_offset,_length);
if( _next ) br->_next = _next->copy();
return br;
}
//------------------------------merge------------------------------------------
// Merge another buffer region into this buffer region. Make overlapping areas
// become a single region. Remove (delete) the input FileBuffRegion.
// Since the buffer regions are sorted by file offset, this is a varient of a
// "sorted-merge" running in linear time.
FileBuffRegion *FileBuffRegion::merge( FileBuffRegion *br ) {
if( !br ) return this; // Merging nothing
if( !this ) return br; // Merging into nothing
assert( _bfr == br->_bfr, "" ); // Check for pointer-equivalent buffers
if( _offset < br->_offset ) { // "this" starts before "br"
if( _offset+_length < br->_offset ) { // "this" ends before "br"
if( _next ) _next->merge( br ); // Merge with remainder of list
else _next = br; // No more in this list; just append.
} else { // Regions overlap.
int l = br->_offset + br->_length - _offset;
if( l > _length ) _length = l; // Pick larger region
FileBuffRegion *nr = br->_next; // Get rest of region
br->_next = NULL; // Remove indication of rest of region
delete br; // Delete this region (it's been subsumed).
if( nr ) merge( nr ); // Merge with rest of region
} // End of if regions overlap or not.
} else { // "this" starts after "br"
if( br->_offset+br->_length < _offset ) { // "br" ends before "this"
FileBuffRegion *nr = new FileBuffRegion(_bfr,_sol,_line,_offset,_length);
nr->_next = _next; // Structure copy "this" guy to "nr"
*this = *br; // Structure copy "br" over "this".
br->_next = NULL; // Remove indication of rest of region
delete br; // Delete this region (it's been copied)
merge( nr ); // Finish merging
} else { // Regions overlap.
int l = _offset + _length - br->_offset;
if( l > _length ) _length = l; // Pick larger region
_offset = br->_offset; // Start with earlier region
_sol = br->_sol; // Also use earlier line start
_line = br->_line; // Also use earlier line
FileBuffRegion *nr = br->_next; // Get rest of region
br->_next = NULL; // Remove indication of rest of region
delete br; // Delete this region (it's been subsumed).
if( nr ) merge( nr ); // Merge with rest of region
} // End of if regions overlap or not.
}
return this;
}
//------------------------------expandtab--------------------------------------
static int expandtab( ostream &os, int off, char c, char fill1, char fill2 ) {
if( c == '\t' ) { // Tab?
do os << fill1; // Expand the tab; Output space
while( (++off) & 7 ); // Expand to tab stop
} else { // Normal character
os << fill2; // Display normal character
off++; // Increment "cursor" offset
}
return off;
}
//------------------------------printline--------------------------------------
// Print and highlite a region of a line. Return the amount of highliting left
// to do (i.e. highlite length minus length of line).
static int printline( ostream& os, const char *fname, int line,
const char *_sol, int skip, int len ) {
// Display the entire tab-expanded line
os << fname << ":" << line << ": ";
const char *t = strchr(_sol,'\n')+1; // End of line
int off = 0; // Cursor offset for tab expansion
const char *s = _sol; // Nice string pointer
while( t-s ) { // Display whole line
char c = *s++; // Get next character to display
off = expandtab(os,off,c,' ',c);
}
// Display the tab-expanded skippings before underlining.
os << fname << ":" << line << ": ";
off = 0; // Cursor offset for tab expansion
s = _sol; // Restart string pointer
// Start underlining.
if( skip != -1 ) { // The no-start-indicating flag
const char *u = _sol+skip; // Amount to skip
while( u-s ) // Display skipped part
off = expandtab(os,off,*s++,' ',' ');
os << '^'; // Start region
off++; // Moved cursor
len--; // 1 less char to do
if( *s++ == '\t' ) // Starting character is a tab?
off = expandtab(os,off,'\t','-','^');
}
// Long region doesn't end on this line
int llen = (int)(t-s); // Length of line, minus what's already done
if( len > llen ) { // Doing entire rest of line?
while( t-s ) // Display rest of line
off = expandtab(os,off,*s++,'-','-');
os << '\n'; // EOL
return len-llen; // Return what's not yet done.
}
// Region does end on this line. This code fails subtly if the region ends
// in a tab character.
int i;
for( i=1; i<len; i++ ) // Underline just what's needed
off = expandtab(os,off,*s++,'-','-');
if( i == len ) os << '^'; // Mark end of region
os << '\n'; // End of marked line
return 0; // All done
}
//------------------------------print------------------------------------------
//std::ostream& operator<< ( std::ostream& os, FileBuffRegion &br ) {
ostream& operator<< ( ostream& os, FileBuffRegion &br ) {
if( &br == NULL ) return os; // The empty buffer region
FileBuffRegion *brp = &br; // Pointer to region
while( brp ) { // While have chained regions
brp->print(os); // Print region
brp = brp->_next; // Chain to next
}
return os; // Return final stream
}
//------------------------------print------------------------------------------
// Print the FileBuffRegion to a stream. FileBuffRegions are printed with the
// filename and line number to the left, and complete text lines to the right.
// Selected portions (portions of a line actually in the FileBuffRegion are
// underlined. Ellipses are used for long multi-line regions.
//void FileBuffRegion::print( std::ostream& os ) {
void FileBuffRegion::print( ostream& os ) {
if( !this ) return; // Nothing to print
char *s = _bfr->get_line();
int skip = (int)(_offset - _sol); // Amount to skip to start of data
int len = printline( os, _bfr->_fp->_name, _line, s, skip, _length );
if( !len ) return; // All done; exit
// Here we require at least 2 lines
int off1 = _length - len + skip; // Length of line 1
int off2 = off1 + _sol; // Offset to start of line 2
char *s2 = _bfr->get_line(); // Start of line 2
char *s3 = strchr( s2, '\n' )+1; // Start of line 3 (unread)
if( len <= (s3-s2) ) { // It all fits on the next line
printline( os, _bfr->_fp->_name, _line+1, s2, -1, len ); // Print&underline
return;
}
// Here we require at least 3 lines
int off3 = off2 + (int)(s3-s2); // Offset to start of line 3
s3 = _bfr->get_line(); // Start of line 3 (read)
const char *s4 = strchr( s3, '\n' )+1;// Start of line 4 (unread)
if( len < (s4-s3) ) { // It all fits on the next 2 lines
s2 = _bfr->get_line();
len = printline( os, _bfr->_fp->_name, _line+1, s2, -1, len ); // Line 2
s3 = _bfr->get_line();
printline( os, _bfr->_fp->_name, _line+2, s3, -1, len ); // Line 3
return;
}
// Here we require at least 4 lines.
// Print only the 1st and last line, with ellipses in middle.
os << "...\n"; // The ellipses
int cline = _line+1; // Skipped 2 lines
do { // Do until find last line
len -= (int)(s3-s2); // Remove length of line
cline++; // Next line
s2 = _bfr->get_line(); // Get next line from end of this line
s3 = strchr( s2, '\n' ) + 1;// Get end of next line
} while( len > (s3-s2) ); // Repeat until last line
printline( os, _bfr->_fp->_name, cline, s2, -1, len ); // Print & underline
}
//------------------------------file_error-------------------------------------
void FileBuff::file_error(int flag, int linenum, const char *fmt, ...)
{
......
src/share/vm/adlc/filebuff.hpp
浏览文件 @ 019af8d2
/*
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -46,7 +46,6 @@ class ArchDesc;
// This class defines a nicely behaved buffer of text. Entire file of text
// is read into buffer at creation, with sentinels at start and end.
class FileBuff {
friend class FileBuffRegion;
private:
long _bufferSize; // Size of text holding buffer.
long _offset; // Expected filepointer offset.
......@@ -82,29 +81,4 @@ class FileBuff {
// when the pointer is valid (i.e. just obtained from getline()).
long getoff(const char* s) { return _bufoff + (long)(s - _buf); }
};
//------------------------------FileBuffRegion---------------------------------
// A buffer region is really a region of some file, specified as a linked list
// of offsets and lengths. These regions can be merged; overlapping regions
// will coalesce.
class FileBuffRegion {
public: // Workaround dev-studio friend/private bug
FileBuffRegion *_next; // Linked list of regions sorted by offset.
private:
FileBuff *_bfr; // The Buffer of the file
int _offset, _length; // The file area
int _sol; // Start of line where the file area starts
int _line; // First line of region
public:
FileBuffRegion(FileBuff*, int sol, int line, int offset, int len);
~FileBuffRegion();
FileBuffRegion *copy(); // Deep copy
FileBuffRegion *merge(FileBuffRegion*); // Merge 2 regions; delete input
void print(ostream&);
friend ostream& operator<< (ostream&, FileBuffRegion&);
};
#endif // SHARE_VM_ADLC_FILEBUFF_HPP
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