int BinaryOpExpression::getConcatList(ExpressionPtrVec &ev, ExpressionPtr exp,
bool &hasVoid) {
if (!exp->hasCPPTemp()) {
if (exp->is(Expression::KindOfUnaryOpExpression)) {
UnaryOpExpressionPtr u = static_pointer_cast<UnaryOpExpression>(exp);
if (u->getOp() == '(') {
return getConcatList(ev, u->getExpression(), hasVoid);
}
} else if (exp->is(Expression::KindOfBinaryOpExpression)) {
BinaryOpExpressionPtr b = static_pointer_cast<BinaryOpExpression>(exp);
if (b->getOp() == '.') {
return getConcatList(ev, b->getExp1(), hasVoid) +
getConcatList(ev, b->getExp2(), hasVoid);
}
} else if (exp->is(Expression::KindOfEncapsListExpression)) {
EncapsListExpressionPtr e =
static_pointer_cast<EncapsListExpression>(exp);
if (e->getType() != '`') {
ExpressionListPtr el = e->getExpressions();
int num = 0;
for (int i = 0, s = el->getCount(); i < s; i++) {
ExpressionPtr exp = (*el)[i];
num += getConcatList(ev, exp, hasVoid);
}
return num;
}
}
}
ev.push_back(exp);
bool isVoid = !exp->getActualType();
hasVoid |= isVoid;
return isVoid ? 0 : 1;
}
static void outputStringBufExprs(ExpressionPtrVec &ev,
CodeGenerator &cg, AnalysisResultPtr ar) {
for (size_t i = 0; i < ev.size(); i++) {
ExpressionPtr exp = ev[i];
cg_printf(".add(");
outputStringExpr(cg, ar, exp, true);
cg_printf(")");
}
}
int BinaryOpExpression::getConcatList(ExpressionPtrVec &ev, ExpressionPtr exp,
bool &hasVoid) {
if (!exp->hasCPPTemp()) {
if (exp->is(Expression::KindOfUnaryOpExpression)) {
UnaryOpExpressionPtr u = static_pointer_cast<UnaryOpExpression>(exp);
if (u->getOp() == '(') {
return getConcatList(ev, u->getExpression(), hasVoid);
}
} else if (exp->is(Expression::KindOfBinaryOpExpression)) {
BinaryOpExpressionPtr b = static_pointer_cast<BinaryOpExpression>(exp);
if (b->getOp() == '.') {
if (b->getExp1()->is(Expression::KindOfSimpleVariable) &&
b->getExp1()->isLocalExprAltered() &&
!b->getExp1()->hasCPPTemp() &&
b->getExp2()->hasEffect() &&
!b->getExp2()->hasCPPTemp()) {
/*
In this case, the simple variable must be evaluated
after b->getExp2(). But when we output a concat list we
explicitly order the expressions from left to right.
*/
} else {
return getConcatList(ev, b->getExp1(), hasVoid) +
getConcatList(ev, b->getExp2(), hasVoid);
}
}
} else if (exp->is(Expression::KindOfEncapsListExpression)) {
EncapsListExpressionPtr e =
static_pointer_cast<EncapsListExpression>(exp);
if (e->getType() != '`') {
ExpressionListPtr el = e->getExpressions();
int num = 0;
for (int i = 0, s = el->getCount(); i < s; i++) {
ExpressionPtr exp = (*el)[i];
num += getConcatList(ev, exp, hasVoid);
}
return num;
}
}
} else if (!exp->getActualType()) {
return 0;
}
ev.push_back(exp);
bool isVoid = !exp->getActualType();
hasVoid |= isVoid;
return isVoid ? 0 : 1;
}
bool UnaryOpExpression::preOutputCPP(CodeGenerator &cg, AnalysisResultPtr ar,
int state) {
if (m_op == T_ISSET && m_exp && m_exp->is(Expression::KindOfExpressionList)) {
ExpressionListPtr exps = dynamic_pointer_cast<ExpressionList>(m_exp);
int count = exps->getCount();
if (count > 1) {
bool fix_e1 = (*exps)[0]->preOutputCPP(cg, ar, 0);
bool inExpression = ar->inExpression();
ar->setInExpression(false);
bool fix_en = false;
for (int i = 1; i < count; i++) {
if ((*exps)[i]->preOutputCPP(cg, ar, 0)) {
fix_en = true;
break;
}
}
ar->setInExpression(inExpression);
if (inExpression && fix_en) {
ar->wrapExpressionBegin(cg);
std::string tmp = genCPPTemp(cg, ar);
cg_printf("bool %s = (", tmp.c_str());
(*exps)[0]->outputCPPExistTest(cg, ar, m_op);
cg_printf(");\n");
for (int i = 1; i < count; i++) {
cg_indentBegin("if (%s) {\n", tmp.c_str());
ExpressionPtr e = (*exps)[i];
e->preOutputCPP(cg, ar, 0);
cg_printf("%s = (", tmp.c_str());
e->outputCPPExistTest(cg, ar, m_op);
cg_printf(");\n");
}
for (int i = 1; i < count; i++) {
cg_indentEnd("}\n");
}
m_cppTemp = tmp;
} else if (state & FixOrder) {
preOutputStash(cg, ar, state);
fix_e1 = true;
}
return fix_e1 || fix_en;
}
}
if (m_op == '@') {
if (isUnused()) m_exp->setUnused(true);
bool inExpression = ar->inExpression();
bool doit = state & FixOrder;
if (!doit) {
ar->setInExpression(false);
if (m_exp->preOutputCPP(cg, ar, state)) {
doit = true;
}
ar->setInExpression(inExpression);
}
if (doit && inExpression) {
cg_printf("%s%d.enable();\n", Option::SilencerPrefix, m_silencer);
m_exp->preOutputCPP(cg, ar, 0);
int s = m_silencer;
m_silencer = -1;
this->preOutputStash(cg, ar, state | FixOrder);
m_silencer = s;
cg_printf("%s%d.disable();\n", Option::SilencerPrefix, m_silencer);
}
return doit;
} else if (m_op == T_PRINT && m_exp && !m_exp->hasEffect()) {
ExpressionPtrVec ev;
bool hasVoid = false;
if (BinaryOpExpression::getConcatList(ev, m_exp, hasVoid) > 1 ||
hasVoid ) {
if (!ar->inExpression()) return true;
ar->wrapExpressionBegin(cg);
for (int i = 0, s = ev.size(); i < s; i++) {
ExpressionPtr e = ev[i];
e->preOutputCPP(cg, ar, 0);
cg_printf("print(");
e->outputCPP(cg, ar);
cg_printf(");\n");
}
m_cppTemp = "1";
return true;
}
}
return Expression::preOutputCPP(cg, ar, state);
}
bool BinaryOpExpression::preOutputCPP(CodeGenerator &cg, AnalysisResultPtr ar,
int state) {
if (isOpEqual()) return Expression::preOutputCPP(cg, ar, state);
bool effect2 = m_exp2->hasEffect();
const char *prefix = 0;
if (effect2 || m_exp1->hasEffect()) {
ExpressionPtr self = static_pointer_cast<Expression>(shared_from_this());
ExpressionPtrVec ev;
bool hasVoid = false;
int numConcat = 0;
bool ok = false;
if (m_op == '.') {
numConcat = getConcatList(ev, self, hasVoid);
ok = hasVoid ||
(numConcat > MAX_CONCAT_ARGS &&
(!Option::GenConcat ||
cg.getOutput() == CodeGenerator::SystemCPP));
} else if (effect2 && m_op == T_CONCAT_EQUAL) {
prefix = stringBufferPrefix(cg, ar, m_exp1);
ok = prefix;
if (!ok) {
if (m_exp1->is(KindOfSimpleVariable)) {
ok = true;
ev.push_back(m_exp1);
numConcat++;
}
}
numConcat += getConcatList(ev, m_exp2, hasVoid);
}
if (ok) {
if (!cg.inExpression()) return true;
cg.wrapExpressionBegin();
std::string buf;
if (prefix) {
SimpleVariablePtr sv(static_pointer_cast<SimpleVariable>(m_exp1));
buf = stringBufferName(Option::TempPrefix, prefix,
sv->getName().c_str());
m_cppTemp = "/**/";
} else if (numConcat) {
buf = m_cppTemp = genCPPTemp(cg, ar);
buf += "_buf";
cg_printf("StringBuffer %s;\n", buf.c_str());
} else {
m_cppTemp = "\"\"";
}
for (size_t i = 0; i < ev.size(); i++) {
ExpressionPtr exp = ev[i];
bool is_void = !exp->getActualType();
exp->preOutputCPP(cg, ar, 0);
if (!is_void) {
cg_printf("%s.append(", buf.c_str());
outputStringExpr(cg, ar, exp, true);
cg_printf(")");
} else {
exp->outputCPPUnneeded(cg, ar);
}
cg_printf(";\n");
}
if (numConcat && !prefix) {
cg_printf("CStrRef %s(%s.detach());\n",
m_cppTemp.c_str(), buf.c_str());
if (m_op == T_CONCAT_EQUAL) {
m_exp1->outputCPP(cg, ar);
cg_printf(" = %s;\n", m_cppTemp.c_str());
}
}
return true;
}
}
if (!isShortCircuitOperator()) {
return Expression::preOutputCPP(cg, ar, state);
}
if (!effect2) {
return m_exp1->preOutputCPP(cg, ar, state);
}
bool fix_e1 = m_exp1->preOutputCPP(cg, ar, 0);
if (!cg.inExpression()) {
return fix_e1 || m_exp2->preOutputCPP(cg, ar, 0);
}
cg.setInExpression(false);
bool fix_e2 = m_exp2->preOutputCPP(cg, ar, 0);
cg.setInExpression(true);
if (fix_e2) {
cg.wrapExpressionBegin();
std::string tmp = genCPPTemp(cg, ar);
cg_printf("bool %s = (", tmp.c_str());
m_exp1->outputCPP(cg, ar);
cg_printf(");\n");
cg_indentBegin("if (%s%s) {\n",
m_op == T_LOGICAL_OR || m_op == T_BOOLEAN_OR ? "!" : "",
tmp.c_str());
m_exp2->preOutputCPP(cg, ar, 0);
cg_printf("%s = (", tmp.c_str());
m_exp2->outputCPP(cg, ar);
cg_printf(");\n");
cg_indentEnd("}\n");
m_cppTemp = tmp;
} else if (state & FixOrder) {
preOutputStash(cg, ar, state);
fix_e1 = true;
}
return fix_e1 || fix_e2;
}
void BinaryOpExpression::outputCPPImpl(CodeGenerator &cg,
AnalysisResultPtr ar) {
if (isOpEqual() && outputCPPImplOpEqual(cg, ar)) return;
bool wrapped = true;
switch (m_op) {
case T_CONCAT_EQUAL:
if (const char *prefix = stringBufferPrefix(cg, ar, m_exp1)) {
SimpleVariablePtr sv = static_pointer_cast<SimpleVariable>(m_exp1);
ExpressionPtrVec ev;
bool hasVoid = false;
getConcatList(ev, m_exp2, hasVoid);
cg_printf("%s", stringBufferName(Option::TempPrefix, prefix,
sv->getName().c_str()).c_str());
outputStringBufExprs(ev, cg, ar);
return;
}
cg_printf("concat_assign");
break;
case '.':
{
ExpressionPtr self = static_pointer_cast<Expression>(shared_from_this());
ExpressionPtrVec ev;
bool hasVoid = false;
int num = getConcatList(ev, self, hasVoid);
assert(!hasVoid);
if ((num <= MAX_CONCAT_ARGS ||
(Option::GenConcat &&
cg.getOutput() != CodeGenerator::SystemCPP))) {
assert(num >= 2);
if (num == 2) {
cg_printf("concat(");
} else {
if (num > MAX_CONCAT_ARGS) ar->m_concatLengths.insert(num);
cg_printf("concat%d(", num);
}
for (size_t i = 0; i < ev.size(); i++) {
ExpressionPtr exp = ev[i];
if (i) cg_printf(", ");
outputStringExpr(cg, ar, exp, false);
}
cg_printf(")");
} else {
cg_printf("StringBuffer()");
outputStringBufExprs(ev, cg, ar);
cg_printf(".detach()");
}
}
return;
case T_LOGICAL_XOR: cg_printf("logical_xor"); break;
case '|': cg_printf("bitwise_or"); break;
case '&': cg_printf("bitwise_and"); break;
case '^': cg_printf("bitwise_xor"); break;
case T_IS_IDENTICAL: cg_printf("same"); break;
case T_IS_NOT_IDENTICAL: cg_printf("!same"); break;
case T_IS_EQUAL: cg_printf("equal"); break;
case T_IS_NOT_EQUAL: cg_printf("!equal"); break;
case '<': cg_printf("less"); break;
case T_IS_SMALLER_OR_EQUAL: cg_printf("not_more"); break;
case '>': cg_printf("more"); break;
case T_IS_GREATER_OR_EQUAL: cg_printf("not_less"); break;
case '/': cg_printf("divide"); break;
case '%': cg_printf("modulo"); break;
case T_INSTANCEOF: cg_printf("instanceOf"); break;
default:
wrapped = !isUnused();
break;
}
if (wrapped) cg_printf("(");
ExpressionPtr first = m_exp1;
ExpressionPtr second = m_exp2;
// we could implement these functions natively on String and Array classes
switch (m_op) {
case '+':
case '-':
case '*':
case '/': {
TypePtr actualType = first->getActualType();
if (actualType &&
(actualType->is(Type::KindOfString) ||
(m_op != '+' && actualType->is(Type::KindOfArray)))) {
cg_printf("(Variant)(");
first->outputCPP(cg, ar);
cg_printf(")");
} else {
bool flag = castIfNeeded(getActualType(), actualType, cg, ar, getScope());
first->outputCPP(cg, ar);
if (flag) {
cg_printf(")");
}
}
break;
}
case T_SL:
case T_SR:
cg_printf("toInt64(");
first->outputCPP(cg, ar);
cg_printf(")");
break;
default:
first->outputCPP(cg, ar);
break;
}
switch (m_op) {
case T_PLUS_EQUAL: cg_printf(" += "); break;
case T_MINUS_EQUAL: cg_printf(" -= "); break;
case T_MUL_EQUAL: cg_printf(" *= "); break;
case T_DIV_EQUAL: cg_printf(" /= "); break;
case T_MOD_EQUAL: cg_printf(" %%= "); break;
case T_AND_EQUAL: cg_printf(" &= "); break;
case T_OR_EQUAL: cg_printf(" |= "); break;
case T_XOR_EQUAL: cg_printf(" ^= "); break;
case T_SL_EQUAL: cg_printf(" <<= "); break;
case T_SR_EQUAL: cg_printf(" >>= "); break;
case T_BOOLEAN_OR: cg_printf(" || "); break;
case T_BOOLEAN_AND: cg_printf(" && "); break;
case T_LOGICAL_OR: cg_printf(" || "); break;
case T_LOGICAL_AND: cg_printf(" && "); break;
default:
switch (m_op) {
case '+': cg_printf(" + "); break;
case '-': cg_printf(" - "); break;
case '*': cg_printf(" * "); break;
case T_SL: cg_printf(" << "); break;
case T_SR: cg_printf(" >> "); break;
default:
cg_printf(", ");
break;
}
break;
}
switch (m_op) {
case '+':
case '-':
case '*':
case '/': {
TypePtr actualType = second->getActualType();
if (actualType &&
(actualType->is(Type::KindOfString) ||
(m_op != '+' && actualType->is(Type::KindOfArray)))) {
cg_printf("(Variant)(");
second->outputCPP(cg, ar);
cg_printf(")");
} else {
bool flag = castIfNeeded(getActualType(), actualType, cg, ar, getScope());
second->outputCPP(cg, ar);
if (flag) {
cg_printf(")");
}
}
break;
}
case T_INSTANCEOF:
{
if (second->isScalar()) {
std::string s = second->getLiteralString();
std::string sLower = Util::toLower(s);
if (sLower != "") {
cg_printString(sLower, ar, shared_from_this());
} else {
second->outputCPP(cg, ar);
}
} else {
second->outputCPP(cg, ar);
}
break;
}
case T_PLUS_EQUAL:
case T_MINUS_EQUAL:
case T_MUL_EQUAL:
{
TypePtr t1 = first->getCPPType();
TypePtr t2 = second->getType();
if (t1 && !t1->is(Type::KindOfArray) &&
t2 && Type::IsCastNeeded(ar, t2, t1)) {
t1->outputCPPCast(cg, ar, getScope());
cg_printf("(");
second->outputCPP(cg, ar);
cg_printf(")");
} else {
second->outputCPP(cg, ar);
}
break;
}
case T_BOOLEAN_OR:
case T_BOOLEAN_AND:
case T_LOGICAL_AND:
case T_LOGICAL_OR:
if (isUnused()) {
cg_printf("(");
if (second->outputCPPUnneeded(cg, ar)) {
cg_printf(",");
}
cg_printf("false)");
} else {
second->outputCPP(cg, ar);
}
break;
default:
second->outputCPP(cg, ar);
}
if (wrapped) cg_printf(")");
}
void BinaryOpExpression::outputCPPImpl(CodeGenerator &cg,
AnalysisResultPtr ar) {
if (isOpEqual() && outputCPPImplOpEqual(cg, ar)) return;
bool wrapped = true;
switch (m_op) {
case T_CONCAT_EQUAL:
if (const char *prefix = stringBufferPrefix(cg, ar, m_exp1)) {
SimpleVariablePtr sv = static_pointer_cast<SimpleVariable>(m_exp1);
ExpressionPtrVec ev;
bool hasVoid = false;
getConcatList(ev, m_exp2, hasVoid);
cg_printf("%s", stringBufferName(Option::TempPrefix, prefix,
sv->getName().c_str()).c_str());
outputStringBufExprs(ev, cg, ar);
return;
}
cg_printf("concat_assign");
break;
case '.':
{
ExpressionPtr self = static_pointer_cast<Expression>(shared_from_this());
ExpressionPtrVec ev;
bool hasVoid = false;
int num = getConcatList(ev, self, hasVoid);
assert(!hasVoid);
if (num <= MAX_CONCAT_ARGS) {
assert(num >= 2);
if (num == 2) {
cg_printf("concat(");
} else {
if (num > MAX_CONCAT_ARGS) ar->m_concatLengths.insert(num);
cg_printf("concat%d(", num);
}
for (size_t i = 0; i < ev.size(); i++) {
ExpressionPtr exp = ev[i];
if (i) cg_printf(", ");
outputStringExpr(cg, ar, exp, false);
}
cg_printf(")");
} else {
cg_printf("StringBuffer()");
outputStringBufExprs(ev, cg, ar);
cg_printf(".detach()");
}
}
return;
case T_LOGICAL_XOR:
cg_printf("logical_xor");
break;
case '|':
cg_printf("bitwise_or");
break;
case '&':
cg_printf("bitwise_and");
break;
case '^':
cg_printf("bitwise_xor");
break;
case T_IS_IDENTICAL:
cg_printf("same");
break;
case T_IS_NOT_IDENTICAL:
cg_printf("!same");
break;
case T_IS_EQUAL:
cg_printf("equal");
break;
case T_IS_NOT_EQUAL:
cg_printf("!equal");
break;
case '<':
cg_printf("less");
break;
case T_IS_SMALLER_OR_EQUAL:
cg_printf("not_more");
break;
case '>':
cg_printf("more");
break;
case T_IS_GREATER_OR_EQUAL:
cg_printf("not_less");
break;
case '/':
cg_printf("divide");
break;
case '%':
cg_printf("modulo");
break;
case T_INSTANCEOF:
cg_printf("instanceOf");
break;
default:
wrapped = !isUnused();
break;
}
if (wrapped) cg_printf("(");
ExpressionPtr first = m_exp1;
ExpressionPtr second = m_exp2;
// we could implement these functions natively on String and Array classes
switch (m_op) {
case '+':
case '-':
case '*':
case '/':
if (!first->outputCPPArithArg(cg, ar, m_op == '+')) {
TypePtr argType = first->hasCPPTemp() ?
first->getType() : first->getActualType();
bool flag = castIfNeeded(getActualType(), argType, cg, ar, getScope());
first->outputCPP(cg, ar);
if (flag) {
cg_printf(")");
}
}
break;
case T_SL:
case T_SR:
ASSERT(first->getType()->is(Type::KindOfInt64));
first->outputCPP(cg, ar);
break;
default:
first->outputCPP(cg, ar);
break;
}
switch (m_op) {
case T_PLUS_EQUAL:
cg_printf(" += ");
break;
case T_MINUS_EQUAL:
cg_printf(" -= ");
break;
case T_MUL_EQUAL:
cg_printf(" *= ");
break;
case T_DIV_EQUAL:
cg_printf(" /= ");
break;
case T_MOD_EQUAL:
cg_printf(" %%= ");
break;
case T_AND_EQUAL:
cg_printf(" &= ");
break;
case T_OR_EQUAL:
cg_printf(" |= ");
break;
case T_XOR_EQUAL:
cg_printf(" ^= ");
break;
case T_SL_EQUAL:
cg_printf(" <<= ");
break;
case T_SR_EQUAL:
cg_printf(" >>= ");
break;
case T_BOOLEAN_OR:
cg_printf(" || ");
break;
case T_BOOLEAN_AND:
cg_printf(" && ");
break;
case T_LOGICAL_OR:
cg_printf(" || ");
break;
case T_LOGICAL_AND:
cg_printf(" && ");
break;
default:
switch (m_op) {
case '+':
cg_printf(" + ");
break;
case '-':
cg_printf(" - ");
break;
case '*':
cg_printf(" * ");
break;
case T_SL:
cg_printf(" << ");
break;
case T_SR:
cg_printf(" >> ");
break;
default:
cg_printf(", ");
break;
}
break;
}
switch (m_op) {
case '+':
case '-':
case '*':
case '/':
if (!second->outputCPPArithArg(cg, ar, m_op == '+')) {
TypePtr argType = second->hasCPPTemp() ?
second->getType() : second->getActualType();
bool flag = castIfNeeded(getActualType(), argType, cg, ar, getScope());
second->outputCPP(cg, ar);
if (flag) {
cg_printf(")");
}
}
break;
case T_INSTANCEOF:
{
if (second->isScalar()) {
ScalarExpressionPtr scalar =
dynamic_pointer_cast<ScalarExpression>(second);
bool notQuoted = scalar && !scalar->isQuoted();
std::string s = second->getLiteralString();
if (s == "static" && notQuoted) {
cg_printf("FrameInjection::GetStaticClassName(fi.getThreadInfo())");
} else if (s != "") {
if (s == "self" && notQuoted) {
ClassScopeRawPtr cls = getOriginalClass();
if (cls) {
s = cls->getOriginalName();
}
} else if (s == "parent" && notQuoted) {
ClassScopeRawPtr cls = getOriginalClass();
if (cls && !cls->getParent().empty()) {
s = cls->getParent();
}
}
cg_printString(s, ar, shared_from_this());
} else {
second->outputCPP(cg, ar);
}
} else {
second->outputCPP(cg, ar);
}
break;
}
case T_PLUS_EQUAL:
case T_MINUS_EQUAL:
case T_MUL_EQUAL:
{
TypePtr t1 = first->getCPPType();
TypePtr t2 = second->getType();
if (t1 && !t1->is(Type::KindOfArray) &&
t2 && Type::IsCastNeeded(ar, t2, t1)) {
t1->outputCPPCast(cg, ar, getScope());
cg_printf("(");
second->outputCPP(cg, ar);
cg_printf(")");
} else {
second->outputCPP(cg, ar);
}
break;
}
case T_BOOLEAN_OR:
case T_BOOLEAN_AND:
case T_LOGICAL_AND:
case T_LOGICAL_OR:
if (isUnused()) {
cg_printf("(");
if (second->outputCPPUnneeded(cg, ar)) {
cg_printf(",");
}
cg_printf("false)");
} else {
second->outputCPP(cg, ar);
}
break;
default:
second->outputCPP(cg, ar);
}
if (wrapped) cg_printf(")");
}