diff options
Diffstat (limited to 'gcc/go/gofrontend/expressions.cc')
| -rw-r--r-- | gcc/go/gofrontend/expressions.cc | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc index d82eebd..740daec 100644 --- a/gcc/go/gofrontend/expressions.cc +++ b/gcc/go/gofrontend/expressions.cc @@ -7110,6 +7110,12 @@ Binary_expression::do_import(Import_expression* imp, Location loc) op = OPERATOR_BITCLEAR; imp->advance(4); } + else if (imp->match_c_string(")")) + { + // Not a binary operator after all. + imp->advance(1); + return left; + } else { go_error_at(imp->location(), "unrecognized binary operator"); @@ -12808,6 +12814,38 @@ Array_index_expression::do_get_backend(Translate_context* context) return ret; } +// Export an array index expression. + +void +Array_index_expression::do_export(Export_function_body* efb) const +{ + efb->write_c_string("("); + this->array_->export_expression(efb); + efb->write_c_string(")["); + + Type* old_context = efb->type_context(); + efb->set_type_context(Type::lookup_integer_type("int")); + + this->start_->export_expression(efb); + if (this->end_ == NULL) + go_assert(this->cap_ == NULL); + else + { + efb->write_c_string(":"); + if (!this->end_->is_nil_expression()) + this->end_->export_expression(efb); + if (this->cap_ != NULL) + { + efb->write_c_string(":"); + this->cap_->export_expression(efb); + } + } + + efb->set_type_context(old_context); + + efb->write_c_string("]"); +} + // Dump ast representation for an array index expression. void @@ -13068,6 +13106,31 @@ String_index_expression::do_get_backend(Translate_context* context) crash, bstrslice, loc); } +// Export a string index expression. + +void +String_index_expression::do_export(Export_function_body* efb) const +{ + efb->write_c_string("("); + this->string_->export_expression(efb); + efb->write_c_string(")["); + + Type* old_context = efb->type_context(); + efb->set_type_context(Type::lookup_integer_type("int")); + + this->start_->export_expression(efb); + if (this->end_ != NULL) + { + efb->write_c_string(":"); + if (!this->end_->is_nil_expression()) + this->end_->export_expression(efb); + } + + efb->set_type_context(old_context); + + efb->write_c_string("]"); +} + // Dump ast representation for a string index expression. void @@ -13338,6 +13401,25 @@ Map_index_expression::get_value_pointer(Gogo* gogo) return this->value_pointer_; } +// Export a map index expression. + +void +Map_index_expression::do_export(Export_function_body* efb) const +{ + efb->write_c_string("("); + this->map_->export_expression(efb); + efb->write_c_string(")["); + + Type* old_context = efb->type_context(); + efb->set_type_context(this->get_map_type()->key_type()); + + this->index_->export_expression(efb); + + efb->set_type_context(old_context); + + efb->write_c_string("]"); +} + // Dump ast representation for a map index expression void @@ -17974,6 +18056,29 @@ Expression::import_expression(Import_expression* imp, Location loc) imp->require_c_string(")"); expr = Expression::make_call(expr, args, is_varargs, loc); } + else if (imp->match_c_string("[")) + { + imp->advance(1); + Expression* start = Expression::import_expression(imp, loc); + Expression* end = NULL; + Expression* cap = NULL; + if (imp->match_c_string(":")) + { + imp->advance(1); + int c = imp->peek_char(); + if (c == ':' || c == ']') + end = Expression::make_nil(loc); + else + end = Expression::import_expression(imp, loc); + if (imp->match_c_string(":")) + { + imp->advance(1); + cap = Expression::import_expression(imp, loc); + } + } + imp->require_c_string("]"); + expr = Expression::make_index(expr, start, end, cap, loc); + } else break; } |