Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 12:23:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

c++: locations: provide convenience constructors.

Browse Source 
* data/location.cc (position::position): Accept file, line and
column as arguments with default values.
Always qualify initial line and column literals as unsigned.
(location::location): Provide convenience constructors.
(cherry picked from commit 0634493cdd)

Conflicts:

	ChangeLog-2012
	data/location.cc
This commit is contained in:
Akim Demaille
2008-09-23 13:49:41 +02:00
committed by Akim Demaille
parent 2a1bd0d7fe
commit 2091988f7e
1 changed files with 31 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
data/location.cc
View File

@@ -41,29 +41,32 @@ b4_copyright([Positions for Bison parsers in C++],
class position
{
public:
]m4_ifdef([b4_location_constructors], [
]m4_ifdef([b4_location_constructors], [[
/// Construct a position.
position ()
: filename (YY_NULL), line (]b4_location_initial_line[), column (]b4_location_initial_column[)
explicit position (]b4_percent_define_get([[filename_type]])[* f = YY_NULL,
unsigned int l = ]b4_location_initial_line[u,
unsigned int c = ]b4_location_initial_column[u)
: filename (f)
, line (l)
, column (c)
{
}
])[
]])[
/// Initialization.
void initialize (]b4_percent_define_get([[filename_type]])[* fn = YY_NULL)
{
filename = fn;
line = ]b4_location_initial_line[;
column = ]b4_location_initial_column[;
line = ]b4_location_initial_line[u;
column = ]b4_location_initial_column[u;
}
/** \name Line and Column related manipulators
** \{ */
public:
/// (line related) Advance to the COUNT next lines.
void lines (int count = 1)
{
column = ]b4_location_initial_column[;
column = ]b4_location_initial_column[u;
line += count;
}
@@ -74,7 +77,6 @@ b4_copyright([Positions for Bison parsers in C++],
}
/** \} */
public:
/// File name to which this position refers.
]b4_percent_define_get([[filename_type]])[* filename;
/// Current line number.
@@ -168,9 +170,26 @@ b4_copyright([Locations for Bison parsers in C++],
{
public:
]m4_ifdef([b4_location_constructors], [
/// Construct a location.
location ()
: begin (), end ()
/// Construct a location from \a b to \a e.
location (const position& b, const position& e)
: begin (b)
, end (e)
{
}
/// Construct a 0-width location in \a p.
explicit location (const position& p = position ())
: begin (p)
, end (p)
{
}
/// Construct a 0-width location in \a f, \a l, \a c.
explicit location (]b4_percent_define_get([[filename_type]])[* f,
unsigned int l = ]b4_location_initial_line[u,
unsigned int c = ]b4_location_initial_column[u)
: begin (f, l, c)
, end (f, l, c)
{
}