class `Crystal::Lexer`
inherits `Reference` ¶

Direct known subclasses

Crystal::Parser

Class methods¶

`.new(string, string_pool : StringPool? = nil)` ¶

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Methods¶

`#check_integer_literal_fits_in_size(string_value, num_size, negative, start)` ¶

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`#check_macro_opening_keyword(beginning_of_line)` ¶

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`#check_negative_value_fits_in_int64(string_value, num_size, start)` ¶

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`#check_value_fits_in_uint64(string_value, num_size, start)` ¶

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`#closing_char(char = current_char)` ¶

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`#column_number : Int32` ¶

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`#column_number=(column_number : Int32)` ¶

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`#comments_enabled=(comments_enabled : Bool)` ¶

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`#comments_enabled? : Bool` ¶

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`#consume_braced_unicode_escape(allow_spaces = false)` ¶

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`#consume_char_unicode_escape` ¶

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`#consume_comment(start_pos)` ¶

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`#consume_doc` ¶

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`#consume_float_suffix` ¶

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`#consume_int_suffix` ¶

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`#consume_loc_pragma` ¶

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`#consume_newlines` ¶

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`#consume_non_braced_unicode_escape` ¶

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`#consume_octal_escape(char)` ¶

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`#consume_string_hex_escape` ¶

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`#consume_string_unicode_brace_escape` ¶

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`#consume_string_unicode_escape` ¶

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`#consume_uint_suffix` ¶

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`#consume_whitespace` ¶

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`#count_whitespace=(count_whitespace : Bool)` ¶

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`#count_whitespace? : Bool` ¶

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`#current_char` ¶

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`#current_pos` ¶

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`#current_pos=(pos)` ¶

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`#deduce_integer_kind(string_value, num_size, negative, start)` ¶

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`#delimited_pair(kind, string_nest, string_end, start, allow_escapes = true, advance = true)` ¶

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`#doc_enabled=(doc_enabled : Bool)` ¶

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`#doc_enabled? : Bool` ¶

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`#expected_hexacimal_character_in_unicode_escape` ¶

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`#filename=(filename)` ¶

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`#finish_scan_prefixed_number(num, negative, start)` ¶

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`#heredocs : Array({Crystal::Token::DelimiterState, Crystal::Lexer::HeredocItem})` ¶

Heredocs pushed when found. Should be processed when encountering a newline

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`#ident_part?(char)` ¶

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`#ident_part_or_end?(char)` ¶

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`#ident_start?(char)` ¶

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`#incr_column_number(d = 1)` ¶

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`#incr_line_number(column_number = 1)` ¶

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`#line_number : Int32` ¶

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`#line_number=(line_number : Int32)` ¶

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`#lookahead` ¶

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`#macro_expansion_pragmas : Hash(Int32, Array(LocPragma))?` ¶

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`#macro_expansion_pragmas=(macro_expansion_pragmas : Hash(Int32, Array(LocPragma))?)` ¶

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`#next_char` ¶

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`#next_char(token_type)` ¶

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`#next_char_and_symbol(value)` ¶

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`#next_char_check_line` ¶

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`#next_char_no_column_increment` ¶

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`#next_macro_token(macro_state, skip_whitespace)` ¶

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`#next_string_array_token` ¶

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`#next_string_token(delimiter_state)` ¶

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`#next_string_token_noescape(delimiter_state)` ¶

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`#next_token` ¶

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`#next_token_never_a_symbol` ¶

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`#next_token_skip_space` ¶

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`#next_token_skip_space_or_newline` ¶

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`#next_token_skip_statement_end` ¶

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`#peek_next_char` ¶

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`#peek_not_ident_part_or_end_next_char` ¶

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`#pop_location` ¶

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`#push_location` ¶

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`#raise(message, line_number = @line_number, column_number = @column_number, filename = @filename)` ¶

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`#raise(message, location : Location)` ¶

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`#raise(message, token : Token, size = nil)` ¶

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`#raise_unterminated_quoted(delimiter_state)` ¶

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`#raise_value_doesnt_fit_in(type, string_value, start)` ¶

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`#reader : Char::Reader` ¶

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`#reset_token` ¶

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`#scan_bin_number(start, negative)` ¶

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`#scan_hex_number(start, negative = false)` ¶

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`#scan_ident(start)` ¶

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`#scan_number(start, negative = false)` ¶

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`#scan_octal_number(start, negative)` ¶

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`#scan_zero_number(start, negative = false)` ¶

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`#set_location(filename, line_number, column_number)` ¶

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`#set_token_raw_from_start(start)` ¶

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`#skip_comment` ¶

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`#skip_macro_whitespace` ¶

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`#skip_space` ¶

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`#skip_space_or_newline` ¶

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`#skip_statement_end` ¶

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`#slash_is_not_regex!` ¶

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`#slash_is_regex!` ¶

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`#slash_is_regex=(slash_is_regex : Bool)` ¶

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`#slash_is_regex? : Bool` ¶

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`#slice_range(start_pos)` ¶

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`#slice_range(start_pos, end_pos)` ¶

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`#string` ¶

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`#string_range(start_pos, end_pos)` ¶

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`#string_range(start_pos)` ¶

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`#string_range_from_pool(start_pos)` ¶

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`#string_range_from_pool(start_pos, end_pos)` ¶

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`#string_token_escape_value(value)` ¶

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`#symbol(value)` ¶

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`#token : Token` ¶

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`#token_end_location` ¶

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`#unknown_token` ¶

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`#wants_def_or_macro_name=(wants_def_or_macro_name : Bool)` ¶

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`#wants_def_or_macro_name? : Bool` ¶

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`#wants_raw=(wants_raw : Bool)` ¶

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`#wants_raw? : Bool` ¶

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`#wants_symbol : Bool` ¶

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`#wants_symbol=(wants_symbol : Bool)` ¶

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Macros¶

`gen_check_int_fits_in_size(type, method, size)` ¶

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`gen_check_uint_fits_in_size(type, size)` ¶

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class Crystal::Lexer inherits Reference ¶

Direct known subclasses

Class methods¶

.new(string, string_pool : StringPool? = nil) ¶

Methods¶

#absolute_integer_value(string_value, negative) ¶

#char_to_hex ¶

#check_heredoc_end(delimiter_state) ¶

#check_heredoc_start ¶

#check_ident_or_keyword(symbol, start) ¶

#check_integer_literal_fits_in_size(string_value, num_size, negative, start) ¶

#check_macro_opening_keyword(beginning_of_line) ¶

#check_negative_value_fits_in_int64(string_value, num_size, start) ¶

#check_value_fits_in_uint64(string_value, num_size, start) ¶

#closing_char(char = current_char) ¶

#column_number : Int32 ¶

#column_number=(column_number : Int32) ¶

#comments_enabled=(comments_enabled : Bool) ¶

#comments_enabled? : Bool ¶

#consume_braced_unicode_escape(allow_spaces = false) ¶

#consume_char_unicode_escape ¶

#consume_comment(start_pos) ¶

#consume_doc ¶

#consume_float_suffix ¶

#consume_int_suffix ¶

#consume_loc_pragma ¶

#consume_newlines ¶

#consume_non_braced_unicode_escape ¶

#consume_octal_escape(char) ¶

#consume_string_hex_escape ¶

#consume_string_unicode_brace_escape ¶

#consume_string_unicode_escape ¶

#consume_uint_suffix ¶

#consume_whitespace ¶

#count_whitespace=(count_whitespace : Bool) ¶

#count_whitespace? : Bool ¶

#current_char ¶

#current_pos ¶

#current_pos=(pos) ¶

#deduce_integer_kind(string_value, num_size, negative, start) ¶

#delimited_pair(kind, string_nest, string_end, start, allow_escapes = true, advance = true) ¶

#doc_enabled=(doc_enabled : Bool) ¶

#doc_enabled? : Bool ¶

#expected_hexacimal_character_in_unicode_escape ¶

#filename=(filename) ¶

#finish_scan_prefixed_number(num, negative, start) ¶

#heredocs : Array({Crystal::Token::DelimiterState, Crystal::Lexer::HeredocItem}) ¶

#ident_part?(char) ¶

#ident_part_or_end?(char) ¶

#ident_start?(char) ¶

#incr_column_number(d = 1) ¶

#incr_line_number(column_number = 1) ¶

#line_number : Int32 ¶

#line_number=(line_number : Int32) ¶

#lookahead ¶

#macro_expansion_pragmas : Hash(Int32, Array(LocPragma))? ¶

#macro_expansion_pragmas=(macro_expansion_pragmas : Hash(Int32, Array(LocPragma))?) ¶

#next_char ¶

#next_char(token_type) ¶

#next_char_and_symbol(value) ¶

#next_char_check_line ¶

#next_char_no_column_increment ¶

#next_macro_token(macro_state, skip_whitespace) ¶

#next_string_array_token ¶

#next_string_token(delimiter_state) ¶

#next_string_token_noescape(delimiter_state) ¶

#next_token ¶

#next_token_never_a_symbol ¶

#next_token_skip_space ¶

#next_token_skip_space_or_newline ¶

#next_token_skip_statement_end ¶

#peek_next_char ¶

#peek_not_ident_part_or_end_next_char ¶

#pop_location ¶

#push_location ¶

#raise(message, line_number = @line_number, column_number = @column_number, filename = @filename) ¶

#raise(message, location : Location) ¶

#raise(message, token : Token, size = nil) ¶

#raise_unterminated_quoted(delimiter_state) ¶

#raise_value_doesnt_fit_in(type, string_value, start) ¶

class `Crystal::Lexer`
inherits `Reference` ¶

`.new(string, string_pool : StringPool? = nil)` ¶

`#absolute_integer_value(string_value, negative)` ¶

`#char_to_hex` ¶

`#check_heredoc_end(delimiter_state)` ¶

`#check_heredoc_start` ¶

`#check_ident_or_keyword(symbol, start)` ¶

`#check_integer_literal_fits_in_size(string_value, num_size, negative, start)` ¶

`#check_macro_opening_keyword(beginning_of_line)` ¶

`#check_negative_value_fits_in_int64(string_value, num_size, start)` ¶

`#check_value_fits_in_uint64(string_value, num_size, start)` ¶

`#closing_char(char = current_char)` ¶

`#column_number : Int32` ¶

`#column_number=(column_number : Int32)` ¶

`#comments_enabled=(comments_enabled : Bool)` ¶

`#comments_enabled? : Bool` ¶

`#consume_braced_unicode_escape(allow_spaces = false)` ¶

`#consume_char_unicode_escape` ¶

`#consume_comment(start_pos)` ¶

`#consume_doc` ¶

`#consume_float_suffix` ¶

`#consume_int_suffix` ¶

`#consume_loc_pragma` ¶

`#consume_newlines` ¶

`#consume_non_braced_unicode_escape` ¶

`#consume_octal_escape(char)` ¶

`#consume_string_hex_escape` ¶

`#consume_string_unicode_brace_escape` ¶

`#consume_string_unicode_escape` ¶

`#consume_uint_suffix` ¶

`#consume_whitespace` ¶

`#count_whitespace=(count_whitespace : Bool)` ¶

`#count_whitespace? : Bool` ¶

`#current_char` ¶

`#current_pos` ¶

`#current_pos=(pos)` ¶

`#deduce_integer_kind(string_value, num_size, negative, start)` ¶

`#delimited_pair(kind, string_nest, string_end, start, allow_escapes = true, advance = true)` ¶

`#doc_enabled=(doc_enabled : Bool)` ¶

`#doc_enabled? : Bool` ¶

`#expected_hexacimal_character_in_unicode_escape` ¶

`#filename=(filename)` ¶

`#finish_scan_prefixed_number(num, negative, start)` ¶

`#heredocs : Array({Crystal::Token::DelimiterState, Crystal::Lexer::HeredocItem})` ¶

`#ident_part?(char)` ¶

`#ident_part_or_end?(char)` ¶

`#ident_start?(char)` ¶

`#incr_column_number(d = 1)` ¶

`#incr_line_number(column_number = 1)` ¶

`#line_number : Int32` ¶

`#line_number=(line_number : Int32)` ¶

`#lookahead` ¶

`#macro_expansion_pragmas : Hash(Int32, Array(LocPragma))?` ¶

`#macro_expansion_pragmas=(macro_expansion_pragmas : Hash(Int32, Array(LocPragma))?)` ¶

`#next_char` ¶

`#next_char(token_type)` ¶

`#next_char_and_symbol(value)` ¶

`#next_char_check_line` ¶

`#next_char_no_column_increment` ¶

`#next_macro_token(macro_state, skip_whitespace)` ¶

`#next_string_array_token` ¶

`#next_string_token(delimiter_state)` ¶

`#next_string_token_noescape(delimiter_state)` ¶

`#next_token` ¶

`#next_token_never_a_symbol` ¶

`#next_token_skip_space` ¶

`#next_token_skip_space_or_newline` ¶

`#next_token_skip_statement_end` ¶

`#peek_next_char` ¶

`#peek_not_ident_part_or_end_next_char` ¶

`#pop_location` ¶

`#push_location` ¶

`#raise(message, line_number = @line_number, column_number = @column_number, filename = @filename)` ¶

`#raise(message, location : Location)` ¶

`#raise(message, token : Token, size = nil)` ¶

`#raise_unterminated_quoted(delimiter_state)` ¶

`#raise_value_doesnt_fit_in(type, string_value, start)` ¶

`#reader : Char::Reader` ¶

`#reset_token` ¶

`#scan_bin_number(start, negative)` ¶