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Simplify minsym iteration 

This simplifies the minimal symbol iterator, by using
minimal_symbol_count and just doing a somewhat ordinary array-like
iteration.  array_view is nearly usable, except that it is more
convenient for this iterator to return pointers rather than
references.

gdb/ChangeLog
2019-01-16  Tom Tromey  <tom@tromey.com>

	* objfiles.h (class objfile_msymbols) <iterator>: Change argument
	type.  Remove no-argument constructor.
	<iterator::operator++>: Simplify.
	<begin>: Update.
	<end>: Use minimal_symbol_count.
This commit is contained in:
Tom Tromey 2019-01-16 07:09:55 -07:00
parent f252c6d5dc
commit 604b1bfb46
2 changed files with 14 additions and 19 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2019-01-16 Tom Tromey <tom@tromey.com>
* objfiles.h (class objfile_msymbols) <iterator>: Change argument
type. Remove no-argument constructor.
<iterator::operator++>: Simplify.
<begin>: Update.
<end>: Use minimal_symbol_count.
2019-01-16 Tom Tromey <tom@tromey.com>
* objfiles.h (struct objfile) <psymtabs>: New method.

25
gdb/objfiles.h
View File

@ -591,20 +591,11 @@ public:
typedef std::forward_iterator_tag iterator_category;
typedef int difference_type;
explicit iterator (struct objfile *objfile)
: m_msym (objfile->per_bfd->msymbols)
explicit iterator (struct minimal_symbol *msym)
: m_msym (msym)
{
/* Make sure to properly handle the case where there are no
minsyms. */
if (MSYMBOL_LINKAGE_NAME (m_msym) == nullptr)
m_msym = nullptr;
}
iterator ()
: m_msym (nullptr)
{
}
value_type operator* () const
{
return m_msym;
@ -622,12 +613,7 @@ public:
self_type &operator++ ()
{
if (m_msym != nullptr)
{
++m_msym;
if (MSYMBOL_LINKAGE_NAME (m_msym) == nullptr)
m_msym = nullptr;
}
++m_msym;
return *this;
}
@ -637,12 +623,13 @@ public:
iterator begin () const
{
return iterator (m_objfile);
return iterator (m_objfile->per_bfd->msymbols);
}
iterator end () const
{
return iterator ();
return iterator (m_objfile->per_bfd->msymbols
+ m_objfile->per_bfd->minimal_symbol_count);
}
private: