/
token.cr
77 lines (71 loc) · 1.33 KB
/
token.cr
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class JSON::Token
enum Kind
Null
False
True
Int
Float
String
BeginArray
EndArray
BeginObject
EndObject
Colon
Comma
EOF
end
property kind : Kind
property string_value : String
def int_value : Int64
raw_value.to_i64
rescue exc : ArgumentError
raise ParseException.new(exc.message, line_number, column_number)
end
def float_value : Float64
raw_value.to_f64
rescue exc : ArgumentError
raise ParseException.new(exc.message, line_number, column_number)
end
property line_number : Int32
property column_number : Int32
property raw_value : String
def initialize
@kind = :EOF
@line_number = 0
@column_number = 0
@string_value = ""
@raw_value = ""
end
def to_s(io : IO) : Nil
case @kind
when .null?
io << "null"
when .false?
io << "false"
when .true?
io << "true"
when .int?
raw_value.to_s(io)
when .float?
raw_value.to_s(io)
when .string?
string_value.to_s(io)
when .begin_array?
io << '['
when .end_array?
io << ']'
when .begin_object?
io << '{'
when .end_object?
io << '}'
when .colon?
io << ':'
when .comma?
io << ','
when .eof?
io << "<EOF>"
else
raise "Unknown token kind: #{@kind}"
end
end
end