55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/* reader_error.hpp
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*
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* Author: Roland Conybeare, Jul 2025
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*/
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#pragma once
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#include "xo/tokenizer/tokenizer_error.hpp"
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namespace xo {
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namespace scm {
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class reader_error {
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public:
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using input_state_type = typename tokenizer_error<char>::input_state_type;
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public:
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/** default ctor represents a not-an-error sentinel object **/
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reader_error() = default;
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/** construct to capture parsing error context
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* @
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**/
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reader_error(const char * src_function,
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std::string error_description,
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const input_state_type & input_state,
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size_t error_pos)
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: tk_error_{src_function, error_description, input_state, error_pos}
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{}
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const tokenizer_error<char> & tk_error() const { return tk_error_; }
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/** true, except for sentinel not-an-error object **/
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bool is_error() const { return tk_error_.is_error(); }
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/** false, except for object in sentinel state **/
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bool is_not_an_error() const { return tk_error_.is_not_an_error(); }
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const char * src_function() const { return tk_error_.src_function(); }
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/** print error representation to stream @p os. Intended for parser/tokenizer
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* diagnostics. For Schematika errors prefer @ref report
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**/
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void print(std::ostream & os) const { tk_error_.print(os); }
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/** print human-oriented error report on @p os. **/
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void report(std::ostream & os) const { tk_error_.report(os); }
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private:
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/** for parser-level errors, will still use this for
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* {src function, error description, input state and error pos}
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**/
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tokenizer_error<char> tk_error_;
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};
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}
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}
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/* end reader_error.hpp */
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