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Adds new value converter functions.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| #include "sass.h" | ||
| #include "values.hpp" | ||
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|
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| #include <stdint.h> | ||
|
|
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| namespace Sass { | ||
| using namespace std; | ||
|
|
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| // convert value from C++ side to C-API | ||
| union Sass_Value* ast_node_to_sass_value (const Expression* val) | ||
| { | ||
| if (val->concrete_type() == Expression::NUMBER) | ||
| { | ||
| const Number* res = dynamic_cast<const Number*>(val); | ||
| return sass_make_number(res->value(), res->unit().c_str()); | ||
| } | ||
| else if (val->concrete_type() == Expression::COLOR) | ||
| { | ||
| const Color* col = dynamic_cast<const Color*>(val); | ||
| return sass_make_color(col->r(), col->g(), col->b(), col->a()); | ||
| } | ||
| else if (val->concrete_type() == Expression::LIST) | ||
| { | ||
| const List* l = dynamic_cast<const List*>(val); | ||
| union Sass_Value* list = sass_make_list(l->size(), l->separator()); | ||
| for (size_t i = 0, L = l->length(); i < L; ++i) { | ||
| auto val = ast_node_to_sass_value((*l)[i]); | ||
| sass_list_set_value(list, i, val); | ||
| } | ||
| return list; | ||
| } | ||
| else if (val->concrete_type() == Expression::MAP) | ||
| { | ||
| const Map* m = dynamic_cast<const Map*>(val); | ||
| union Sass_Value* map = sass_make_map(m->length()); | ||
| size_t i = 0; for (auto key : m->keys()) { | ||
| sass_map_set_key(map, i, ast_node_to_sass_value(key)); | ||
| sass_map_set_value(map, i, ast_node_to_sass_value(m->at(key))); | ||
| ++ i; | ||
| } | ||
| return map; | ||
| } | ||
| else if (val->concrete_type() == Expression::NULL_VAL) | ||
| { | ||
| return sass_make_null(); | ||
| } | ||
| else if (val->concrete_type() == Expression::BOOLEAN) | ||
| { | ||
| const Boolean* res = dynamic_cast<const Boolean*>(val); | ||
| return sass_make_boolean(res->value()); | ||
| } | ||
| else if (val->concrete_type() == Expression::STRING) | ||
| { | ||
| if (const String_Quoted* qstr = dynamic_cast<const String_Quoted*>(val)) | ||
| { | ||
| return sass_make_qstring(qstr->value().c_str()); | ||
| } | ||
| else if (const String_Constant* cstr = dynamic_cast<const String_Constant*>(val)) | ||
| { | ||
| return sass_make_string(cstr->value().c_str()); | ||
| } | ||
| } | ||
| return sass_make_error("unknown sass value type"); | ||
| } | ||
|
|
||
| // convert value from C-API to C++ side | ||
| Value* sass_value_to_ast_node (Memory_Manager<AST_Node>& mem, const union Sass_Value* val) | ||
| { | ||
| switch (sass_value_get_tag(val)) { | ||
| case SASS_NUMBER: | ||
| return new (mem) Number(ParserState("[C-VALUE]"), | ||
| sass_number_get_value(val), | ||
| sass_number_get_unit(val)); | ||
| break; | ||
| case SASS_BOOLEAN: | ||
| return new (mem) Boolean(ParserState("[C-VALUE]"), | ||
| sass_boolean_get_value(val)); | ||
| break; | ||
| case SASS_COLOR: | ||
| return new (mem) Color(ParserState("[C-VALUE]"), | ||
| sass_color_get_r(val), | ||
| sass_color_get_g(val), | ||
| sass_color_get_b(val), | ||
| sass_color_get_a(val)); | ||
| break; | ||
| case SASS_STRING: | ||
| return new (mem) String_Quoted(ParserState("[C-VALUE]"), | ||
| sass_string_get_value(val)); | ||
| break; | ||
| case SASS_LIST: { | ||
| List* l = new (mem) List(ParserState("[C-VALUE]"), | ||
| sass_list_get_length(val), | ||
| sass_list_get_separator(val)); | ||
| for (size_t i = 0, L = sass_list_get_length(val); i < L; ++i) { | ||
| *l << sass_value_to_ast_node(mem, sass_list_get_value(val, i)); | ||
| } | ||
| return l; | ||
| } | ||
| break; | ||
| case SASS_MAP: { | ||
| Map* m = new (mem) Map(ParserState("[C-VALUE]")); | ||
| for (size_t i = 0, L = sass_map_get_length(val); i < L; ++i) { | ||
| *m << std::make_pair( | ||
| sass_value_to_ast_node(mem, sass_map_get_key(val, i)), | ||
| sass_value_to_ast_node(mem, sass_map_get_value(val, i))); | ||
| } | ||
| return m; | ||
| } | ||
| break; | ||
| case SASS_NULL: | ||
| return new (mem) Null(ParserState("[C-VALUE]")); | ||
| break; | ||
| case SASS_ERROR: | ||
| return new (mem) Custom_Error(ParserState("[C-VALUE]"), | ||
| sass_error_get_message(val)); | ||
| break; | ||
| case SASS_WARNING: | ||
| return new (mem) Custom_Warning(ParserState("[C-VALUE]"), | ||
| sass_warning_get_message(val)); | ||
| break; | ||
| } | ||
| return 0; | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| #ifndef SASS_VALUES_H | ||
| #define SASS_VALUES_H | ||
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| #include "ast.hpp" | ||
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| namespace Sass { | ||
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| union Sass_Value* ast_node_to_sass_value (const Expression* val); | ||
| Value* sass_value_to_ast_node (Memory_Manager<AST_Node>& mem, const union Sass_Value* val); | ||
|
|
||
| } | ||
| #endif |
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