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Move AST values into own compile units
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@mgreter
mgreter committed Nov 29, 2018
1 parent bfece18 commit c1990ed
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Showing 7 changed files with 1,072 additions and 991 deletions.
1 change: 1 addition & 0 deletions Makefile.conf
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@

SOURCES = \
ast.cpp \
ast_values.cpp \
ast_sel_cmp.cpp \
ast_sel_unify.cpp \
ast_selectors.cpp \
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327 changes: 0 additions & 327 deletions src/ast.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -31,23 +31,6 @@ namespace Sass {
Cast<Supports_Operator>(cond);
}

void str_rtrim(std::string& str, const std::string& delimiters = " \f\n\r\t\v")
{
str.erase( str.find_last_not_of( delimiters ) + 1 );
}

void String_Constant::rtrim()
{
str_rtrim(value_);
}

void String_Schema::rtrim()
{
if (!empty()) {
if (String_Ptr str = Cast<String>(last())) str->rtrim();
}
}

void Argument::set_delayed(bool delayed)
{
if (value_) value_->set_delayed(delayed);
Expand Down Expand Up @@ -169,236 +152,6 @@ namespace Sass {
return true;
}

Number::Number(ParserState pstate, double val, std::string u, bool zero)
: Value(pstate),
Units(),
value_(val),
zero_(zero),
hash_(0)
{
size_t l = 0;
size_t r;
if (!u.empty()) {
bool nominator = true;
while (true) {
r = u.find_first_of("*/", l);
std::string unit(u.substr(l, r == std::string::npos ? r : r - l));
if (!unit.empty()) {
if (nominator) numerators.push_back(unit);
else denominators.push_back(unit);
}
if (r == std::string::npos) break;
// ToDo: should error for multiple slashes
// if (!nominator && u[r] == '/') error(...)
if (u[r] == '/')
nominator = false;
// strange math parsing?
// else if (u[r] == '*')
// nominator = true;
l = r + 1;
}
}
concrete_type(NUMBER);
}

// cancel out unnecessary units
void Number::reduce()
{
// apply conversion factor
value_ *= this->Units::reduce();
}

void Number::normalize()
{
// apply conversion factor
value_ *= this->Units::normalize();
}

bool Custom_Warning::operator== (const Expression& rhs) const
{
if (Custom_Warning_Ptr_Const r = Cast<Custom_Warning>(&rhs)) {
return message() == r->message();
}
return false;
}

bool Custom_Error::operator== (const Expression& rhs) const
{
if (Custom_Error_Ptr_Const r = Cast<Custom_Error>(&rhs)) {
return message() == r->message();
}
return false;
}

bool Number::operator== (const Expression& rhs) const
{
if (auto rhsnr = Cast<Number>(&rhs)) {
return *this == *rhsnr;
}
return false;
}

bool Number::operator== (const Number& rhs) const
{
Number l(*this), r(rhs); l.reduce(); r.reduce();
size_t lhs_units = l.numerators.size() + l.denominators.size();
size_t rhs_units = r.numerators.size() + r.denominators.size();
// unitless and only having one unit seems equivalent (will change in future)
if (!lhs_units || !rhs_units) {
return NEAR_EQUAL(l.value(), r.value());
}
l.normalize(); r.normalize();
Units &lhs_unit = l, &rhs_unit = r;
return lhs_unit == rhs_unit &&
NEAR_EQUAL(l.value(), r.value());
}

bool Number::operator< (const Number& rhs) const
{
Number l(*this), r(rhs); l.reduce(); r.reduce();
size_t lhs_units = l.numerators.size() + l.denominators.size();
size_t rhs_units = r.numerators.size() + r.denominators.size();
// unitless and only having one unit seems equivalent (will change in future)
if (!lhs_units || !rhs_units) {
return l.value() < r.value();
}
l.normalize(); r.normalize();
Units &lhs_unit = l, &rhs_unit = r;
if (!(lhs_unit == rhs_unit)) {
/* ToDo: do we always get usefull backtraces? */
throw Exception::IncompatibleUnits(rhs, *this);
}
return lhs_unit < rhs_unit ||
l.value() < r.value();
}

bool String_Quoted::operator== (const Expression& rhs) const
{
if (String_Quoted_Ptr_Const qstr = Cast<String_Quoted>(&rhs)) {
return (value() == qstr->value());
} else if (String_Constant_Ptr_Const cstr = Cast<String_Constant>(&rhs)) {
return (value() == cstr->value());
}
return false;
}

bool String_Constant::is_invisible() const {
return value_.empty() && quote_mark_ == 0;
}

bool String_Constant::operator== (const Expression& rhs) const
{
if (String_Quoted_Ptr_Const qstr = Cast<String_Quoted>(&rhs)) {
return (value() == qstr->value());
} else if (String_Constant_Ptr_Const cstr = Cast<String_Constant>(&rhs)) {
return (value() == cstr->value());
}
return false;
}

bool String_Schema::is_left_interpolant(void) const
{
return length() && first()->is_left_interpolant();
}
bool String_Schema::is_right_interpolant(void) const
{
return length() && last()->is_right_interpolant();
}

bool String_Schema::operator== (const Expression& rhs) const
{
if (String_Schema_Ptr_Const r = Cast<String_Schema>(&rhs)) {
if (length() != r->length()) return false;
for (size_t i = 0, L = length(); i < L; ++i) {
Expression_Obj rv = (*r)[i];
Expression_Obj lv = (*this)[i];
if (!lv || !rv) return false;
if (!(*lv == *rv)) return false;
}
return true;
}
return false;
}

bool Boolean::operator== (const Expression& rhs) const
{
if (Boolean_Ptr_Const r = Cast<Boolean>(&rhs)) {
return (value() == r->value());
}
return false;
}

bool Color::operator== (const Expression& rhs) const
{
if (Color_Ptr_Const r = Cast<Color>(&rhs)) {
return r_ == r->r() &&
g_ == r->g() &&
b_ == r->b() &&
a_ == r->a();
}
return false;
}

bool List::operator== (const Expression& rhs) const
{
if (List_Ptr_Const r = Cast<List>(&rhs)) {
if (length() != r->length()) return false;
if (separator() != r->separator()) return false;
if (is_bracketed() != r->is_bracketed()) return false;
for (size_t i = 0, L = length(); i < L; ++i) {
Expression_Obj rv = r->at(i);
Expression_Obj lv = this->at(i);
if (!lv || !rv) return false;
if (!(*lv == *rv)) return false;
}
return true;
}
return false;
}

bool Map::operator== (const Expression& rhs) const
{
if (Map_Ptr_Const r = Cast<Map>(&rhs)) {
if (length() != r->length()) return false;
for (auto key : keys()) {
Expression_Obj lv = at(key);
Expression_Obj rv = r->at(key);
if (!rv || !lv) return false;
if (!(*lv == *rv)) return false;
}
return true;
}
return false;
}

bool Null::operator== (const Expression& rhs) const
{
return rhs.concrete_type() == NULL_VAL;
}

bool Function::operator== (const Expression& rhs) const
{
if (Function_Ptr_Const r = Cast<Function>(&rhs)) {
Definition_Ptr_Const d1 = Cast<Definition>(definition());
Definition_Ptr_Const d2 = Cast<Definition>(r->definition());
return d1 && d2 && d1 == d2 && is_css() == r->is_css();
}
return false;
}

size_t List::size() const {
if (!is_arglist_) return length();
// arglist expects a list of arguments
// so we need to break before keywords
for (size_t i = 0, L = length(); i < L; ++i) {
Expression_Obj obj = this->at(i);
if (Argument_Ptr arg = Cast<Argument>(obj)) {
if (!arg->name().empty()) return i;
}
}
return length();
}

Expression_Obj Hashed::at(Expression_Obj k) const
{
if (elements_.count(k))
Expand Down Expand Up @@ -431,16 +184,6 @@ namespace Sass {
return to_string({ NESTED, 5 });
}

std::string String_Quoted::inspect() const
{
return quote(value_, '*');
}

std::string String_Constant::inspect() const
{
return quote(value_, '*');
}

bool Declaration::is_invisible() const
{
if (is_custom_property()) return false;
Expand All @@ -464,81 +207,12 @@ namespace Sass {
}
}

Function_Call::Function_Call(ParserState pstate, std::string n, Arguments_Obj args, void* cookie)
: PreValue(pstate), sname_(SASS_MEMORY_NEW(String_Constant, pstate, n)), arguments_(args), func_(), via_call_(false), cookie_(cookie), hash_(0)
{ concrete_type(FUNCTION); }
Function_Call::Function_Call(ParserState pstate, std::string n, Arguments_Obj args, Function_Obj func)
: PreValue(pstate), sname_(SASS_MEMORY_NEW(String_Constant, pstate, n)), arguments_(args), func_(func), via_call_(false), cookie_(0), hash_(0)
{ concrete_type(FUNCTION); }
Function_Call::Function_Call(ParserState pstate, std::string n, Arguments_Obj args)
: PreValue(pstate), sname_(SASS_MEMORY_NEW(String_Constant, pstate, n)), arguments_(args), via_call_(false), cookie_(0), hash_(0)
{ concrete_type(FUNCTION); }

bool Function_Call::operator==(const Expression& rhs) const
{
try
{
Function_Call_Ptr_Const m = Cast<Function_Call>(&rhs);
if (!(m && *sname() == *m->sname())) return false;
if (!(m && arguments()->length() == m->arguments()->length())) return false;
for (size_t i =0, L = arguments()->length(); i < L; ++i)
if (!(*(*arguments())[i] == *(*m->arguments())[i])) return false;
return true;
}
catch (std::bad_cast&)
{
return false;
}
catch (...) { throw; }
}

size_t Function_Call::hash() const
{
if (hash_ == 0) {
hash_ = std::hash<std::string>()(name());
for (auto argument : arguments()->elements())
hash_combine(hash_, argument->hash());
}
return hash_;
}

//////////////////////////////////////////////////////////////////////////////////////////
// Convert map to (key, value) list.
//////////////////////////////////////////////////////////////////////////////////////////
List_Obj Map::to_list(ParserState& pstate) {
List_Obj ret = SASS_MEMORY_NEW(List, pstate, length(), SASS_COMMA);

for (auto key : keys()) {
List_Obj l = SASS_MEMORY_NEW(List, pstate, 2);
l->append(key);
l->append(at(key));
ret->append(l);
}

return ret;
}

IMPLEMENT_AST_OPERATORS(Supports_Operator);
IMPLEMENT_AST_OPERATORS(Supports_Negation);
IMPLEMENT_AST_OPERATORS(Ruleset);
IMPLEMENT_AST_OPERATORS(Media_Block);
IMPLEMENT_AST_OPERATORS(Custom_Warning);
IMPLEMENT_AST_OPERATORS(Custom_Error);
IMPLEMENT_AST_OPERATORS(List);
IMPLEMENT_AST_OPERATORS(Map);
IMPLEMENT_AST_OPERATORS(Function);
IMPLEMENT_AST_OPERATORS(Number);
IMPLEMENT_AST_OPERATORS(Binary_Expression);
IMPLEMENT_AST_OPERATORS(String_Schema);
IMPLEMENT_AST_OPERATORS(String_Constant);
IMPLEMENT_AST_OPERATORS(String_Quoted);
IMPLEMENT_AST_OPERATORS(Boolean);
IMPLEMENT_AST_OPERATORS(Color);
IMPLEMENT_AST_OPERATORS(Null);
IMPLEMENT_AST_OPERATORS(Parent_Reference);
IMPLEMENT_AST_OPERATORS(Import);
IMPLEMENT_AST_OPERATORS(Import_Stub);
IMPLEMENT_AST_OPERATORS(Function_Call);
IMPLEMENT_AST_OPERATORS(Directive);
IMPLEMENT_AST_OPERATORS(At_Root_Block);
IMPLEMENT_AST_OPERATORS(Supports_Block);
Expand All @@ -556,7 +230,6 @@ namespace Sass {
IMPLEMENT_AST_OPERATORS(Assignment);
IMPLEMENT_AST_OPERATORS(Return);
IMPLEMENT_AST_OPERATORS(At_Root_Query);
IMPLEMENT_AST_OPERATORS(Variable);
IMPLEMENT_AST_OPERATORS(Comment);
IMPLEMENT_AST_OPERATORS(Supports_Interpolation);
IMPLEMENT_AST_OPERATORS(Supports_Declaration);
Expand Down
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