#include "runtime.h"
#include "backend.h"
#include "statements.h"
+#include "ast-dump.h"
// Class Statement.
return this->do_get_backend(context);
}
+// Dump AST representation for a statement to a dump context.
+
+void
+Statement::dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ this->do_dump_statement(ast_dump_context);
+}
+
// Note that this statement is erroneous. This is called by children
// when they discover an error.
Bstatement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+
+ void
+ do_dump_statement(Ast_dump_context*) const;
};
+// Dump the AST representation for an error statement.
+
+void
+Error_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "Error statement" << std::endl;
+}
+
// Make an error statement.
Statement*
return context->backend()->statement_list(stats);
}
+// Dump the AST representation for a variable declaration.
+
+void
+Variable_declaration_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+
+ go_assert(var_->is_variable());
+ ast_dump_context->ostream() << "var " << this->var_->name() << " ";
+ Variable* var = this->var_->var_value();
+ if (var->has_type())
+ {
+ ast_dump_context->dump_type(var->type());
+ ast_dump_context->ostream() << " ";
+ }
+ if (var->init() != NULL)
+ {
+ ast_dump_context->ostream() << "= ";
+ ast_dump_context->dump_expression(var->init());
+ }
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a variable declaration.
Statement*
return this->bvariable_;
}
+// Dump the AST represemtation for a temporary statement
+
+void
+Temporary_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_temp_variable_name(this);
+ if (this->type_ != NULL)
+ {
+ ast_dump_context->ostream() << " ";
+ ast_dump_context->dump_type(this->type_);
+
+ }
+ if (this->init_ != NULL)
+ {
+ ast_dump_context->ostream() << " = ";
+ ast_dump_context->dump_expression(this->init_);
+ }
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make and initialize a temporary variable in BLOCK.
Temporary_statement*
Bstatement*
do_get_backend(Translate_context*);
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// Left hand side--the lvalue.
Expression* lhs_;
this->location());
}
+// Dump the AST representation for an assignment statement.
+
+void
+Assignment_statement::do_dump_statement(Ast_dump_context* ast_dump_context)
+ const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->lhs_);
+ ast_dump_context->ostream() << " = " ;
+ ast_dump_context->dump_expression(this->rhs_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make an assignment statement.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// The operator (OPERATOR_PLUSEQ, etc.).
Operator op_;
}
}
+// Dump the AST representation for an assignment operation statement
+
+void
+Assignment_operation_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->lhs_);
+ ast_dump_context->dump_operator(this->op_);
+ ast_dump_context->dump_expression(this->rhs_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make an assignment operation statement.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// Left hand side--a list of lvalues.
Expression_list* lhs_;
source_location loc = this->location();
Block* b = new Block(enclosing, loc);
-
+
// First move out any subexpressions on the left hand side. The
// right hand side will be evaluated in the required order anyhow.
Move_ordered_evals moe(b);
return Statement::make_block_statement(b, loc);
}
+// Dump the AST representation for a tuple assignment statement.
+
+void
+Tuple_assignment_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression_list(this->lhs_);
+ ast_dump_context->ostream() << " = ";
+ ast_dump_context->dump_expression_list(this->rhs_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a tuple assignment statement.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// Lvalue which receives the value from the map.
Expression* val_;
return Statement::make_block_statement(b, loc);
}
+// Dump the AST representation for a tuple map assignment statement.
+
+void
+Tuple_map_assignment_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << ", ";
+ ast_dump_context->dump_expression(this->present_);
+ ast_dump_context->ostream() << " = ";
+ ast_dump_context->dump_expression(this->map_index_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a map assignment statement which returns a pair of values.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// A reference to the map index which should be set or deleted.
Expression* map_index_;
return Statement::make_block_statement(b, loc);
}
+// Dump the AST representation for a map assignment statement.
+
+void
+Map_assignment_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->map_index_);
+ ast_dump_context->ostream() << " = ";
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << ", ";
+ ast_dump_context->dump_expression(this->should_set_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a statement which assigns a pair of entries to a map.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// Lvalue which receives the value from the channel.
Expression* val_;
return Statement::make_block_statement(b, loc);
}
+// Dump the AST representation for a tuple receive statement.
+
+void
+Tuple_receive_assignment_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << ", ";
+ ast_dump_context->dump_expression(this->closed_);
+ ast_dump_context->ostream() << " <- ";
+ ast_dump_context->dump_expression(this->channel_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a nonblocking receive statement.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
Call_expression*
lower_to_type(Runtime::Function);
b->add_statement(s);
}
+// Dump the AST representation for a tuple type guard statement.
+
+void
+Tuple_type_guard_assignment_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << ", ";
+ ast_dump_context->dump_expression(this->ok_);
+ ast_dump_context->ostream() << " = ";
+ ast_dump_context->dump_expression(this->expr_);
+ ast_dump_context->ostream() << " . ";
+ ast_dump_context->dump_type(this->type_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make an assignment from a type guard to a pair of variables.
Statement*
Bstatement*
do_get_backend(Translate_context* context);
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
Expression* expr_;
};
return context->backend()->expression_statement(tree_to_expr(expr_tree));
}
+// Dump the AST representation for an expression statement
+
+void
+Expression_statement::do_dump_statement(Ast_dump_context* ast_dump_context)
+ const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(expr_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make an expression statement from an Expression.
Statement*
Bstatement*
do_get_backend(Translate_context* context);
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
Block* block_;
};
return context->backend()->block_statement(bblock);
}
+// Dump the AST for a block statement
+
+void
+Block_statement::do_dump_statement(Ast_dump_context*) const
+{
+ // block statement braces are dumped when traversing.
+}
+
// Make a block statement.
Statement*
do_get_backend(Translate_context*)
{ go_unreachable(); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// The l-value to increment or decrement.
Expression* expr_;
return Statement::make_assignment_operation(op, this->expr_, oexpr, loc);
}
+// Dump the AST representation for a inc/dec statement.
+
+void
+Inc_dec_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(expr_);
+ ast_dump_context->ostream() << (is_inc_? "++": "--") << std::endl;
+}
+
// Make an increment statement.
Statement*
return context->backend()->expression_statement(call_bexpr);
}
+// Dump the AST representation for go statement.
+
+void
+Go_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "go ";
+ ast_dump_context->dump_expression(this->call());
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a go statement.
Statement*
return context->backend()->expression_statement(call_bexpr);
}
+// Dump the AST representation for defer statement.
+
+void
+Defer_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "defer ";
+ ast_dump_context->dump_expression(this->call());
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a defer statement.
Statement*
retvals, loc);
}
+// Dump the AST representation for a return statement.
+
+void
+Return_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "return " ;
+ ast_dump_context->dump_expression_list(this->vals_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a return statement.
Statement*
do_get_backend(Translate_context* context)
{ return this->label_->get_goto(context, this->location()); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// The label that this branches to.
Unnamed_label* label_;
bool is_break_;
};
+// Dump the AST representation for a break/continue statement
+
+void
+Bc_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << (this->is_break_ ? "break" : "continue");
+ if (this->label_ != NULL)
+ {
+ ast_dump_context->ostream() << " ";
+ ast_dump_context->dump_label_name(this->label_);
+ }
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a break statement.
Statement*
Bstatement*
do_get_backend(Translate_context*);
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
Label* label_;
};
return context->backend()->goto_statement(blabel, this->location());
}
+// Dump the AST representation for a goto statement.
+
+void
+Goto_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "goto " << this->label_->name() << std::endl;
+}
+
// Make a goto statement.
Statement*
do_get_backend(Translate_context* context)
{ return this->label_->get_goto(context, this->location()); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
Unnamed_label* label_;
};
+// Dump the AST representation for an unnamed goto statement
+
+void
+Goto_unnamed_statement::do_dump_statement(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "goto ";
+ ast_dump_context->dump_label_name(this->label_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a goto statement to an unnamed label.
Statement*
return context->backend()->label_definition_statement(blabel);
}
+// Dump the AST for a label definition statement.
+
+void
+Label_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << this->label_->name() << ":" << std::endl;
+}
+
// Make a label statement.
Statement*
do_get_backend(Translate_context* context)
{ return this->label_->get_definition(context); }
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// The label.
Unnamed_label* label_;
};
+// Dump the AST representation for an unnamed label definition statement.
+
+void
+Unnamed_label_statement::do_dump_statement(Ast_dump_context* ast_dump_context)
+ const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_label_name(this->label_);
+ ast_dump_context->ostream() << ":" << std::endl;
+}
+
// Make an unnamed label statement.
Statement*
Bstatement*
do_get_backend(Translate_context*);
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
Expression* cond_;
Block* then_block_;
else_block, this->location());
}
+// Dump the AST representation for an if statement
+
+void
+If_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "if ";
+ ast_dump_context->dump_expression(this->cond_);
+ ast_dump_context->ostream() << std::endl;
+ ast_dump_context->dump_block(this->then_block_);
+ if (this->else_block_ != NULL)
+ {
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "else" << std::endl;
+ ast_dump_context->dump_block(this->else_block_);
+ }
+}
+
// Make an if statement.
Statement*
return context->backend()->compound_statement(statements, break_stat);
}
+// Dump the AST representation for a case clause
+
+void
+Case_clauses::Case_clause::dump_clause(Ast_dump_context* ast_dump_context)
+ const
+{
+ ast_dump_context->print_indent();
+ if (this->is_default_)
+ {
+ ast_dump_context->ostream() << "default:";
+ }
+ else
+ {
+ ast_dump_context->ostream() << "case ";
+ ast_dump_context->dump_expression_list(this->cases_);
+ ast_dump_context->ostream() << ":" ;
+ }
+ ast_dump_context->dump_block(this->statements_);
+ if (this->is_fallthrough_)
+ {
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << " (fallthrough)" << std::endl;
+ }
+}
+
// Class Case_clauses.
// Traversal.
}
}
+// Dump the AST representation for case clauses (from a switch statement)
+
+void
+Case_clauses::dump_clauses(Ast_dump_context* ast_dump_context) const
+{
+ for (Clauses::const_iterator p = this->clauses_.begin();
+ p != this->clauses_.end();
+ ++p)
+ p->dump_clause(ast_dump_context);
+}
+
// A constant switch statement. A Switch_statement is lowered to this
// when all the cases are constants.
Bstatement*
do_get_backend(Translate_context*);
+ void
+ do_dump_statement(Ast_dump_context*) const;
+
private:
// The value to switch on.
Expression* val_;
return context->backend()->compound_statement(switch_statement, ldef);
}
+// Dump the AST representation for a constant switch statement.
+
+void
+Constant_switch_statement::do_dump_statement(Ast_dump_context* ast_dump_context)
+ const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "switch ";
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << " {" << std::endl;
+ this->clauses_->dump_clauses(ast_dump_context);
+ ast_dump_context->ostream() << "}" << std::endl;
+}
+
// Class Switch_statement.
// Traversal.
return this->break_label_;
}
+// Dump the AST representation for a switch statement.
+
+void
+Switch_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "switch ";
+ if (this->val_ != NULL)
+ {
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << " ";
+ }
+ ast_dump_context->ostream() << "{" << std::endl;
+ this->clauses_->dump_clauses(ast_dump_context);
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "}" << std::endl;
+}
+
// Make a switch statement.
Switch_statement*
}
}
+// Dump the AST representation for a type case clause
+
+void
+Type_case_clauses::Type_case_clause::dump_clause(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ if (this->is_default_)
+ {
+ ast_dump_context->ostream() << "default:";
+ }
+ else
+ {
+ ast_dump_context->ostream() << "case ";
+ ast_dump_context->dump_type(this->type_);
+ ast_dump_context->ostream() << ":" ;
+ }
+ ast_dump_context->dump_block(this->statements_);
+ if (this->is_fallthrough_)
+ {
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << " (fallthrough)" << std::endl;
+ }
+}
+
// Class Type_case_clauses.
// Traversal.
default_case->lower(b, descriptor_temp, break_label, NULL);
}
+// Dump the AST representation for case clauses (from a switch statement)
+
+void
+Type_case_clauses::dump_clauses(Ast_dump_context* ast_dump_context) const
+{
+ for (Type_clauses::const_iterator p = this->clauses_.begin();
+ p != this->clauses_.end();
+ ++p)
+ p->dump_clause(ast_dump_context);
+}
+
// Class Type_switch_statement.
// Traversal.
return this->break_label_;
}
+// Dump the AST representation for a type switch statement
+
+void
+Type_switch_statement::do_dump_statement(Ast_dump_context* ast_dump_context)
+ const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "switch " << this->var_->name() << " = ";
+ ast_dump_context->dump_expression(this->expr_);
+ ast_dump_context->ostream() << " .(type) {" << std::endl;
+ this->clauses_->dump_clauses(ast_dump_context);
+ ast_dump_context->ostream() << "}" << std::endl;
+}
+
// Make a type switch statement.
Type_switch_statement*
return context->backend()->compound_statement(btemp, s);
}
+// Dump the AST representation for a send statement
+
+void
+Send_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->dump_expression(this->channel_);
+ ast_dump_context->ostream() << " <- ";
+ ast_dump_context->dump_expression(this->val_);
+ ast_dump_context->ostream() << std::endl;
+}
+
// Make a send statement.
Send_statement*
return context->backend()->block_statement(bblock);
}
+// Dump the AST representation for a select case clause
+
+void
+Select_clauses::Select_clause::dump_clause(
+ Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ if (this->is_default_)
+ {
+ ast_dump_context->ostream() << "default:";
+ }
+ else
+ {
+ ast_dump_context->ostream() << "case " ;
+ if (this->is_send_)
+ {
+ ast_dump_context->dump_expression(this->channel_);
+ ast_dump_context->ostream() << " <- " ;
+ ast_dump_context->dump_expression(this->val_);
+ }
+ else
+ {
+ if (this->val_ != NULL)
+ ast_dump_context->dump_expression(this->val_);
+ if (this->closed_ != NULL)
+ {
+ // FIXME: can val_ == NULL and closed_ ! = NULL?
+ ast_dump_context->ostream() << " , " ;
+ ast_dump_context->dump_expression(this->closed_);
+ }
+ if (this->closedvar_ != NULL ||
+ this->var_ != NULL)
+ ast_dump_context->ostream() << " := " ;
+
+ ast_dump_context->ostream() << " <- " ;
+ ast_dump_context->dump_expression(this->channel_);
+ }
+ ast_dump_context->ostream() << ":" ;
+ }
+ ast_dump_context->dump_block(this->statements_);
+}
+
// Class Select_clauses.
// Traversal.
(*clauses)[index] = context->backend()->compound_statement(s, g);
}
+// Dump the AST representation for select clauses.
+
+void
+Select_clauses::dump_clauses(Ast_dump_context* ast_dump_context) const
+{
+ for (Clauses::const_iterator p = this->clauses_.begin();
+ p != this->clauses_.end();
+ ++p)
+ p->dump_clause(ast_dump_context);
+}
+
// Class Select_statement.
// Return the break label for this switch statement, creating it if
this->location());
}
+// Dump the AST representation for a select statement.
+
+void
+Select_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "select {" << std::endl;
+ this->clauses_->dump_clauses(ast_dump_context);
+ ast_dump_context->ostream() << "}" << std::endl;
+}
+
// Make a select statement.
Select_statement*
this->continue_label_ = continue_label;
}
+// Dump the AST representation for a for statement.
+
+void
+For_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+ if (this->init_ != NULL)
+ {
+ ast_dump_context->print_indent();
+ ast_dump_context->indent();
+ ast_dump_context->ostream() << "// INIT " << std::endl;
+ ast_dump_context->dump_block(this->init_);
+ ast_dump_context->unindent();
+ }
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "for ";
+ if (this->cond_ != NULL)
+ ast_dump_context->dump_expression(this->cond_);
+ ast_dump_context->ostream() << " {" << std::endl;
+ ast_dump_context->indent();
+
+ ast_dump_context->dump_block(this->statements_);
+ if (this->init_ != NULL)
+ {
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "// POST " << std::endl;
+ ast_dump_context->dump_block(this->post_);
+ }
+ ast_dump_context->unindent();
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "}" << std::endl;
+}
+
// Make a for statement.
For_statement*
return this->continue_label_;
}
+// Dump the AST representation for a for range statement.
+
+void
+For_range_statement::do_dump_statement(Ast_dump_context* ast_dump_context) const
+{
+
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "for ";
+ ast_dump_context->dump_expression(this->index_var_);
+ if (this->value_var_ != NULL)
+ {
+ ast_dump_context->ostream() << ", ";
+ ast_dump_context->dump_expression(this->value_var_);
+ }
+
+ ast_dump_context->ostream() << " = range ";
+ ast_dump_context->dump_expression(this->range_);
+ ast_dump_context->ostream() << " {" << std::endl;
+ ast_dump_context->indent();
+
+ ast_dump_context->dump_block(this->statements_);
+
+ ast_dump_context->unindent();
+ ast_dump_context->print_indent();
+ ast_dump_context->ostream() << "}" << std::endl;
+}
+
// Make a for statement with a range clause.
For_range_statement*
projects / thirdparty / gcc.git / blobdiff