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More cleanup.

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This commit is contained in:
Roberto Raggi
2009-03-03 10:41:20 +01:00
parent ae04679373
commit 454438e47d
6 changed files with 169 additions and 142 deletions
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122
src/libs/cplusplus/pp-engine.cpp
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@@ -55,8 +55,84 @@
#include <QtDebug>
#include <algorithm>
namespace CPlusPlus {
struct Value
{
enum Kind {
Kind_Long,
Kind_ULong,
};
Kind kind;
union {
long l;
unsigned long ul;
};
Value()
: kind(Kind_Long), l(0)
{ }
inline bool is_ulong () const
{ return kind == Kind_ULong; }
inline void set_ulong (unsigned long v)
{
ul = v;
kind = Kind_ULong;
}
inline void set_long (long v)
{
l = v;
kind = Kind_Long;
}
inline bool is_zero () const
{ return l == 0; }
#define PP_DEFINE_BIN_OP(name, op) \
inline Value operator op(const Value &other) const \
{ \
Value v = *this; \
if (v.is_ulong () || other.is_ulong ()) \
v.set_ulong (v.ul op other.ul); \
else \
v.set_long (v.l op other.l); \
return v; \
}
PP_DEFINE_BIN_OP(op_add, +)
PP_DEFINE_BIN_OP(op_sub, -)
PP_DEFINE_BIN_OP(op_mult, *)
PP_DEFINE_BIN_OP(op_div, /)
PP_DEFINE_BIN_OP(op_mod, %)
PP_DEFINE_BIN_OP(op_lhs, <<)
PP_DEFINE_BIN_OP(op_rhs, >>)
PP_DEFINE_BIN_OP(op_lt, <)
PP_DEFINE_BIN_OP(op_gt, >)
PP_DEFINE_BIN_OP(op_le, <=)
PP_DEFINE_BIN_OP(op_ge, >=)
PP_DEFINE_BIN_OP(op_eq, ==)
PP_DEFINE_BIN_OP(op_ne, !=)
PP_DEFINE_BIN_OP(op_bit_and, &)
PP_DEFINE_BIN_OP(op_bit_or, |)
PP_DEFINE_BIN_OP(op_bit_xor, ^)
PP_DEFINE_BIN_OP(op_and, &&)
PP_DEFINE_BIN_OP(op_or, ||)
#undef PP_DEFINE_BIN_OP
};
} // end of namespace CPlusPlus
using namespace CPlusPlus;
namespace {
class RangeLexer
@@ -449,7 +525,7 @@ private:
} // end of anonymous namespace
Preprocessor::Preprocessor(Client *client, Environment &env)
Preprocessor::Preprocessor(Client *client, Environment *env)
: client(client),
env(env),
_expand(env),
@@ -528,23 +604,23 @@ Preprocessor::State Preprocessor::createStateFromSource(const QByteArray &source
void Preprocessor::processNewline()
{
if (env.currentLine == _dot->lineno)
if (env->currentLine == _dot->lineno)
return;
if (env.currentLine > _dot->lineno) {
if (env->currentLine > _dot->lineno) {
_result->append("\n# ");
_result->append(QByteArray::number(_dot->lineno));
_result->append(' ');
_result->append('"');
_result->append(env.currentFile);
_result->append(env->currentFile);
_result->append('"');
_result->append('\n');
} else {
for (unsigned i = env.currentLine; i < _dot->lineno; ++i)
for (unsigned i = env->currentLine; i < _dot->lineno; ++i)
_result->append('\n');
}
env.currentLine = _dot->lineno;
env->currentLine = _dot->lineno;
}
void Preprocessor::processSkippingBlocks(bool skippingBlocks,
@@ -579,11 +655,11 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
pushState(createStateFromSource(source));
const QByteArray previousFileName = env.currentFile;
env.currentFile = fileName;
const QByteArray previousFileName = env->currentFile;
env->currentFile = fileName;
const unsigned previousCurrentLine = env.currentLine;
env.currentLine = 0;
const unsigned previousCurrentLine = env->currentLine;
env->currentLine = 0;
while (true) {
processNewline();
@@ -628,7 +704,8 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
++_dot; // skip T_IDENTIFIER
const QByteArray spell = tokenSpell(*identifierToken);
if (env.isBuiltinMacro(spell)) {
if (env->isBuiltinMacro(spell)) {
const Macro trivial;
if (client)
@@ -643,7 +720,7 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
continue;
}
Macro *m = env.resolve(spell);
Macro *m = env->resolve(spell);
if (! m)
_result->append(spell);
@@ -675,7 +752,7 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
if (_dot->is(T_IDENTIFIER)) {
const QByteArray id = tokenSpell(*_dot);
if (Macro *macro = env.resolve(id)) {
if (Macro *macro = env->resolve(id)) {
if (macro->isFunctionLike())
m = macro;
}
@@ -690,6 +767,8 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
}
}
// `m' is function-like macro.
// collect the actual arguments
if (_dot->isNot(T_LPAREN)) {
// ### warnng expected T_LPAREN
@@ -709,6 +788,7 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
++_dot;
}
if (_dot->isNot(T_RPAREN)) {
// ### warning expected T_RPAREN
@@ -738,8 +818,8 @@ void Preprocessor::preprocess(const QByteArray &fileName, const QByteArray &sour
popState();
env.currentFile = previousFileName;
env.currentLine = previousCurrentLine;
env->currentFile = previousFileName;
env->currentLine = previousCurrentLine;
_result = previousResult;
}
@@ -899,8 +979,8 @@ void Preprocessor::processDefine(TokenIterator firstToken, TokenIterator lastTok
}
Macro macro;
macro.setFileName(env.currentFile);
macro.setLine(env.currentLine);
macro.setFileName(env->currentFile);
macro.setLine(env->currentLine);
macro.setName(tokenText(*tk));
++tk; // skip T_IDENTIFIER
@@ -961,7 +1041,7 @@ void Preprocessor::processDefine(TokenIterator firstToken, TokenIterator lastTok
macro.setDefinition(definition.trimmed());
}
env.bind(macro);
env->bind(macro);
if (client)
client->macroAdded(macro);
@@ -1063,7 +1143,7 @@ void Preprocessor::processIfdef(bool checkUndefined,
if (testIfLevel()) {
if (tk->is(T_IDENTIFIER)) {
const QByteArray macroName = tokenSpell(*tk);
bool value = env.resolve(macroName) != 0 || env.isBuiltinMacro(macroName);
bool value = env->resolve(macroName) != 0 || env->isBuiltinMacro(macroName);
if (checkUndefined)
value = ! value;
@@ -1083,7 +1163,7 @@ void Preprocessor::processUndef(TokenIterator firstToken, TokenIterator lastToke
if (tk->is(T_IDENTIFIER)) {
const QByteArray macroName = tokenText(*tk);
const Macro *macro = env.remove(macroName);
const Macro *macro = env->remove(macroName);
if (client && macro)
client->macroAdded(*macro);
@@ -1162,7 +1242,7 @@ int Preprocessor::skipping() const
Value Preprocessor::evalExpression(TokenIterator firstToken, TokenIterator lastToken,
const QByteArray &source) const
{
ExpressionEvaluator eval(&env);
ExpressionEvaluator eval(env);
const Value result = eval(firstToken, lastToken, source);
return result;
}