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Track more macro uses.

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In particular macros that are only checked for definition or are
expanded during the evaluation of an #if or #elif directive are now also
added to the list available through Document::macroUses().

The names of undefined macros that are interesting (because they're used
in an #ifdef or a defined(...)) are now available through
Document::undefinedMacroUses().

Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
This commit is contained in:
Christian Kamm
2009-09-25 16:00:14 +02:00
parent 90470771fd
commit 22ed0255b9
9 changed files with 215 additions and 19 deletions
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20
src/libs/cplusplus/pp-macro-expander.cpp
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@@ -66,9 +66,11 @@ inline static bool comment_p (const char *__first, const char *__last)
return (*__first == '/' || *__first == '*');
}
MacroExpander::MacroExpander(Environment *env, pp_frame *frame)
MacroExpander::MacroExpander(Environment *env, pp_frame *frame, Client *client, unsigned start_offset)
: env(env),
frame(frame),
client(client),
start_offset(start_offset),
lines(0)
{ }
@@ -97,6 +99,7 @@ const char *MacroExpander::operator()(const char *first, const char *last,
const char *MacroExpander::expand(const char *__first, const char *__last,
QByteArray *__result)
{
const char *start = __first;
__first = skip_blanks (__first, __last);
lines = skip_blanks.lines;
@@ -284,6 +287,9 @@ const char *MacroExpander::expand(const char *__first, const char *__last,
if (! macro->definition().isEmpty())
{
if (client)
client->startExpandingMacro(start_offset + (name_begin-start), *macro, fast_name, true);
macro->setHidden(true);
QByteArray __tmp;
@@ -310,6 +316,9 @@ const char *MacroExpander::expand(const char *__first, const char *__last,
}
macro->setHidden(false);
if (client)
client->stopExpandingMacro(start_offset + (name_begin-start), *macro);
}
if (! m)
@@ -330,6 +339,7 @@ const char *MacroExpander::expand(const char *__first, const char *__last,
}
QVector<QByteArray> actuals;
QVector<MacroArgumentReference> actuals_ref;
actuals.reserve (5);
++arg_it; // skip '('
@@ -338,6 +348,7 @@ const char *MacroExpander::expand(const char *__first, const char *__last,
const char *arg_end = skip_argument_variadics (actuals, macro, arg_it, __last);
if (arg_it != arg_end)
{
actuals_ref.append(MacroArgumentReference(start_offset + (arg_it-start), arg_end - arg_it));
const QByteArray actual (arg_it, arg_end - arg_it);
QByteArray expanded;
expand_actual (actual.constBegin (), actual.constEnd (), &expanded);
@@ -350,6 +361,7 @@ const char *MacroExpander::expand(const char *__first, const char *__last,
++arg_it; // skip ','
arg_end = skip_argument_variadics (actuals, macro, arg_it, __last);
actuals_ref.append(MacroArgumentReference(start_offset + (arg_it-start), arg_end - arg_it));
const QByteArray actual (arg_it, arg_end - arg_it);
QByteArray expanded;
expand_actual (actual.constBegin (), actual.constEnd (), &expanded);
@@ -363,11 +375,17 @@ const char *MacroExpander::expand(const char *__first, const char *__last,
++arg_it; // skip ')'
__first = arg_it;
if (client)
client->startExpandingMacro(start_offset + (name_begin-start), *macro, fast_name, true, actuals_ref);
pp_frame frame (macro, actuals);
MacroExpander expand_macro (env, &frame);
macro->setHidden(true);
expand_macro (macro->definition(), __result);
macro->setHidden(false);
if (client)
client->stopExpandingMacro(start_offset + (name_begin-start), *macro);
}
else
__result->append(*__first++);