From 27be3056dc0e9c313f25b430ca90b240a5e44160 Mon Sep 17 00:00:00 2001 From: usa Date: Mon, 26 Apr 2010 04:34:36 +0000 Subject: * ext/jason: revert r27493. came again after canceling gcc-ism. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ext/json/lib/json/common.rb | 123 ++++++++++++++------------------------------ 1 file changed, 40 insertions(+), 83 deletions(-) (limited to 'ext/json/lib/json/common.rb') diff --git a/ext/json/lib/json/common.rb b/ext/json/lib/json/common.rb index 244634b7a1..b816a66cf1 100644 --- a/ext/json/lib/json/common.rb +++ b/ext/json/lib/json/common.rb @@ -1,5 +1,4 @@ require 'json/version' -require 'iconv' module JSON class << self @@ -33,16 +32,12 @@ module JSON # level (absolute namespace path?). If there doesn't exist a constant at # the given path, an ArgumentError is raised. def deep_const_get(path) # :nodoc: - path.to_s.split(/::/).inject(Object) do |p, c| + path = path.to_s + path.split(/::/).inject(Object) do |p, c| case when c.empty? then p when p.const_defined?(c) then p.const_get(c) - else - begin - p.const_missing(c) - rescue NameError - raise ArgumentError, "can't find const #{path}" - end + else raise ArgumentError, "can't find const #{path}" end end end @@ -63,20 +58,6 @@ module JSON end self.state = generator::State const_set :State, self.state - const_set :SAFE_STATE_PROTOTYPE, State.new.freeze - const_set :FAST_STATE_PROTOTYPE, State.new( - :indent => '', - :space => '', - :object_nl => "", - :array_nl => "", - :max_nesting => false - ).freeze - const_set :PRETTY_STATE_PROTOTYPE, State.new( - :indent => ' ', - :space => ' ', - :object_nl => "\n", - :array_nl => "\n" - ).freeze end # Returns the JSON generator modul, that is used by JSON. This might be @@ -109,22 +90,22 @@ module JSON # deep. class NestingError < ParserError; end - # :stopdoc: - class CircularDatastructure < NestingError; end - # :startdoc: - # This exception is raised, if a generator or unparser error occurs. class GeneratorError < JSONError; end # For backwards compatibility UnparserError = GeneratorError + # If a circular data structure is encountered while unparsing + # this exception is raised. + class CircularDatastructure < GeneratorError; end + # This exception is raised, if the required unicode support is missing on the # system. Usually this means, that the iconv library is not installed. class MissingUnicodeSupport < JSONError; end module_function - # Parse the JSON document _source_ into a Ruby data structure and return it. + # Parse the JSON string _source_ into a Ruby data structure and return it. # # _opts_ can have the following # keys: @@ -134,21 +115,16 @@ module JSON # * *allow_nan*: If set to true, allow NaN, Infinity and -Infinity in # defiance of RFC 4627 to be parsed by the Parser. This option defaults # to false. - # * *symbolize_names*: If set to true, returns symbols for the names - # (keys) in a JSON object. Otherwise strings are returned, which is also - # the default. # * *create_additions*: If set to false, the Parser doesn't create # additions even if a matchin class and create_id was found. This option # defaults to true. - # * *object_class*: Defaults to Hash - # * *array_class*: Defaults to Array def parse(source, opts = {}) - Parser.new(source, opts).parse + JSON.parser.new(source, opts).parse end - # Parse the JSON document _source_ into a Ruby data structure and return it. + # Parse the JSON string _source_ into a Ruby data structure and return it. # The bang version of the parse method, defaults to the more dangerous values - # for the _opts_ hash, so be sure only to parse trusted _source_ documents. + # for the _opts_ hash, so be sure only to parse trusted _source_ strings. # # _opts_ can have the following keys: # * *max_nesting*: The maximum depth of nesting allowed in the parsed data @@ -163,14 +139,15 @@ module JSON # defaults to true. def parse!(source, opts = {}) opts = { - :max_nesting => false, - :allow_nan => true + :max_nesting => false, + :allow_nan => true }.update(opts) - Parser.new(source, opts).parse + JSON.parser.new(source, opts).parse end - # Generate a JSON document from the Ruby data structure _obj_ and return - # it. _state_ is * a JSON::State object, + # Unparse the Ruby data structure _obj_ into a single line JSON string and + # return it. _state_ is + # * a JSON::State object, # * or a Hash like object (responding to to_hash), # * an object convertible into a hash by a to_h method, # that is used as or to configure a State object. @@ -183,8 +160,10 @@ module JSON # * *indent*: a string used to indent levels (default: ''), # * *space*: a string that is put after, a : or , delimiter (default: ''), # * *space_before*: a string that is put before a : pair delimiter (default: ''), - # * *object_nl*: a string that is put at the end of a JSON object (default: ''), + # * *object_nl*: a string that is put at the end of a JSON object (default: ''), # * *array_nl*: a string that is put at the end of a JSON array (default: ''), + # * *check_circular*: true if checking for circular data structures + # should be done (the default), false otherwise. # * *allow_nan*: true if NaN, Infinity, and -Infinity should be # generated, otherwise an exception is thrown, if these values are # encountered. This options defaults to false. @@ -195,21 +174,13 @@ module JSON # See also the fast_generate for the fastest creation method with the least # amount of sanity checks, and the pretty_generate method for some # defaults for a pretty output. - def generate(obj, opts = nil) - if opts - if opts.respond_to? :to_hash - opts = opts.to_hash - elsif opts.respond_to? :to_h - opts = opts.to_h - else - raise TypeError, "can't convert #{opts.class} into Hash" - end - state = SAFE_STATE_PROTOTYPE.dup - state = state.configure(opts) + def generate(obj, state = nil) + if state + state = State.from_state(state) else - state = SAFE_STATE_PROTOTYPE + state = State.new end - state.generate(obj) + obj.to_json(state) end # :stopdoc: @@ -219,26 +190,14 @@ module JSON module_function :unparse # :startdoc: - # Generate a JSON document from the Ruby data structure _obj_ and return it. - # This method disables the checks for circles in Ruby objects. + # Unparse the Ruby data structure _obj_ into a single line JSON string and + # return it. This method disables the checks for circles in Ruby objects, and + # also generates NaN, Infinity, and, -Infinity float values. # # *WARNING*: Be careful not to pass any Ruby data structures with circles as # _obj_ argument, because this will cause JSON to go into an infinite loop. - def fast_generate(obj, opts = nil) - if opts - if opts.respond_to? :to_hash - opts = opts.to_hash - elsif opts.respond_to? :to_h - opts = opts.to_h - else - raise TypeError, "can't convert #{opts.class} into Hash" - end - state = FAST_STATE_PROTOTYPE.dup - state.configure(opts) - else - state = FAST_STATE_PROTOTYPE - end - state.generate(obj) + def fast_generate(obj) + obj.to_json(nil) end # :stopdoc: @@ -247,13 +206,19 @@ module JSON module_function :fast_unparse # :startdoc: - # Generate a JSON document from the Ruby data structure _obj_ and return it. - # The returned document is a prettier form of the document returned by - # #unparse. + # Unparse the Ruby data structure _obj_ into a JSON string and return it. The + # returned string is a prettier form of the string returned by #unparse. # # The _opts_ argument can be used to configure the generator, see the # generate method for a more detailed explanation. def pretty_generate(obj, opts = nil) + state = JSON.state.new( + :indent => ' ', + :space => ' ', + :object_nl => "\n", + :array_nl => "\n", + :check_circular => true + ) if opts if opts.respond_to? :to_hash opts = opts.to_hash @@ -262,12 +227,9 @@ module JSON else raise TypeError, "can't convert #{opts.class} into Hash" end - state = PRETTY_STATE_PROTOTYPE.dup state.configure(opts) - else - state = PRETTY_STATE_PROTOTYPE end - state.generate(obj) + obj.to_json(state) end # :stopdoc: @@ -343,11 +305,6 @@ module JSON rescue JSON::NestingError raise ArgumentError, "exceed depth limit" end - - # Shortuct for iconv. - def self.iconv(to, from, string) - Iconv.iconv(to, from, string).first - end end module ::Kernel -- cgit v1.2.3