ASTDumper.hpp

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#include <mutable/parse/AST.hpp>
 
#include <mutable/util/macro.hpp>
 
 
namespace m {
 
namespace ast {
 
struct ASTDumper : ConstASTVisitor
{
    std::ostream &out; 
    private:
    int indent_; 
 
    public:
    ASTDumper(std::ostream &out, int indent = 0) : out(out), indent_(indent) { }
 
    using ConstASTVisitor::operator();
#define DECLARE(CLASS) void operator()(Const<CLASS>&) override;
    M_AST_LIST(DECLARE)
#undef DECLARE
 
    private:
    std::ostream & indent() const {
        M_insist(indent_ >= 0, "Indent must not be negative!  Missing increment or superfluous decrement?");
        if (indent_)
            out << '\n' << std::string(2 * indent_ - 2, ' ') << "` ";
        return out;
    }
 
    private:
    void print_type(const Expr &e) const;
};
 
}
 
}