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85 rivejä
3.3 KiB
85 rivejä
3.3 KiB
#pragma once
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#include "lexer.h"
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#include <sstream>
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#include <stdexcept>
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namespace molasses {
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namespace details {
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template<typename... RestT>
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std::string concatenate_builder_impl(std::stringstream& stream)
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requires(sizeof...(RestT) == 0)
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{
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return stream.str();
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}
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template<typename FirstT, typename... RestT>
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std::string concatenate_builder_impl(std::stringstream& stream, FirstT first, RestT... rest) {
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stream << first;
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return concatenate_builder_impl(stream, rest...);
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}
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template<typename... RestT>
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std::string concatenate_builder(RestT... rest) {
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std::stringstream stream{};
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return concatenate_builder_impl(stream, rest...);
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}
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}
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struct build_system_error : std::runtime_error {
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explicit build_system_error(const std::string& message)
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: std::runtime_error(message) {}
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};
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struct interpreter_error : std::runtime_error {
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explicit interpreter_error(const std::string& message)
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: std::runtime_error(message) {}
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};
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struct parser_error : public std::runtime_error {
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explicit parser_error(const std::string& str)
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: std::runtime_error(str) {}
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};
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struct type_input_error : public parser_error {
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type_input_error()
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: parser_error("Bad type provided") {}
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// TODO: Better error message
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};
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struct value_missing_error : public parser_error {
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value_missing_error()
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: parser_error("Expected value, none provided") {}
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// TODO: Better error message
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};
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struct procedure_stack_error : public parser_error {
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procedure_stack_error()
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: parser_error("Expected the stack to look like the return stack upon completion\n") {}
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// TODO: Better error message
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};
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struct unexpected_token_error : public parser_error {
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unexpected_token_error(const symbol& sym, const std::string& found, const std::string& expected)
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: parser_error(details::concatenate_builder(
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"Unexpected token encountered\n", "\tAt ", sym.file_name, ":", sym.line, ":", sym.column, "\n",
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"\tExpected ", expected, "\n", "\tFound ", found, "\n"
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)) {}
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};
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struct expecting_token_error : public parser_error {
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expecting_token_error(const std::string& expected, const std::string& context)
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: parser_error(details::concatenate_builder(
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"An expected token has not been encountered before the end of the input\n", "\tExpected ", expected,
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"\n", "\t", context, "\n"
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)) {}
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// TODO: Better error message
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};
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struct unknown_token_error : public parser_error {
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explicit unknown_token_error(const symbol& sym)
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: parser_error(details::concatenate_builder(
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"An unknown token has been encountered\n", "\tAt ", sym.file_name, ":", sym.line, ":", sym.column,
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"\n"
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)) {}
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// TODO: Better error message
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};
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struct type_expected_with_modifier_error : public parser_error {
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type_expected_with_modifier_error()
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: parser_error("A type is expected before a modifier") {}
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// TODO: Better error message
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};
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}
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