diff options
Diffstat (limited to 'doc/classes/JSON.xml')
| -rw-r--r-- | doc/classes/JSON.xml | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/doc/classes/JSON.xml b/doc/classes/JSON.xml index 5d83c75417..93731cf553 100644 --- a/doc/classes/JSON.xml +++ b/doc/classes/JSON.xml @@ -6,18 +6,17 @@ <description> The [JSON] enables all data types to be converted to and from a JSON string. This useful for serializing data to save to a file or send over the network. [method stringify] is used to convert any data type into a JSON string. - [method parse] is used to convert any existing JSON data into a [Variant] that can be used within Godot. If successfully parsed, use [method get_data] to retrieve the [Variant], and use [code]typeof[/code] to check if the Variant's type is what you expect. JSON Objects are converted into a [Dictionary], but JSON data can be used to store [Array]s, numbers, [String]s and even just a boolean. + [method parse] is used to convert any existing JSON data into a [Variant] that can be used within Godot. If successfully parsed, use [member data] to retrieve the [Variant], and use [code]typeof[/code] to check if the Variant's type is what you expect. JSON Objects are converted into a [Dictionary], but JSON data can be used to store [Array]s, numbers, [String]s and even just a boolean. [b]Example[/b] [codeblock] var data_to_send = ["a", "b", "c"] - var json = JSON.new() - var json_string = json.stringify(data_to_send) + var json_string = JSON.stringify(data_to_send) # Save data # ... # Retrieve data var error = json.parse(json_string) if error == OK: - var data_received = json.get_data() + var data_received = json.data if typeof(data_received) == TYPE_ARRAY: print(data_received) # Prints array else: @@ -25,17 +24,19 @@ else: print("JSON Parse Error: ", json.get_error_message(), " in ", json_string, " at line ", json.get_error_line()) [/codeblock] + Alternatively, you can parse string using the static [method parse_string] method, but it doesn't allow to handle errors. + [codeblock] + var data = JSON.parse_string(json_string) # Returns null if parsing failed. + [/codeblock] + [b]Note:[/b] Both parse methods do not fully comply with the JSON specification: + - Trailing commas in arrays or objects are ignored, instead of causing a parser error. + - New line and tab characters are accepted in string literals, and are treated like their corresponding escape sequences [code]\n[/code] and [code]\t[/code]. + - Numbers are parsed using [method String.to_float] which is generally more lax than the JSON specification. + - Certain errors, such as invalid Unicode sequences, do not cause a parser error. Instead, the string is cleansed and an error is logged to the console. </description> <tutorials> </tutorials> <methods> - <method name="get_data" qualifiers="const"> - <return type="Variant" /> - <description> - Returns the [Variant] containing the data of a successful [method parse]. - [b]Note:[/b] It will return [code]Null[/code] if the last call to parse was unsuccessful or [method parse] has not yet been called. - </description> - </method> <method name="get_error_line" qualifiers="const"> <return type="int" /> <description> @@ -52,11 +53,19 @@ <return type="int" enum="Error" /> <param index="0" name="json_string" type="String" /> <description> - Attempts to parse the [code]json_string[/code] provided. - Returns an [enum Error]. If the parse was successful, it returns [code]OK[/code] and the result can be retrieved using [method get_data]. If unsuccessful, use [method get_error_line] and [method get_error_message] for identifying the source of the failure. + Attempts to parse the [param json_string] provided. + Returns an [enum Error]. If the parse was successful, it returns [constant OK] and the result can be retrieved using [member data]. If unsuccessful, use [method get_error_line] and [method get_error_message] for identifying the source of the failure. + Non-static variant of [method parse_string], if you want custom error handling. + </description> + </method> + <method name="parse_string" qualifiers="static"> + <return type="Variant" /> + <param index="0" name="json_string" type="String" /> + <description> + Attempts to parse the [param json_string] provided and returns the parsed data. Returns [code]null[/code] if parse failed. </description> </method> - <method name="stringify"> + <method name="stringify" qualifiers="static"> <return type="String" /> <param index="0" name="data" type="Variant" /> <param index="1" name="indent" type="String" default="""" /> @@ -65,8 +74,8 @@ <description> Converts a [Variant] var to JSON text and returns the result. Useful for serializing data to store or send over the network. [b]Note:[/b] The JSON specification does not define integer or float types, but only a [i]number[/i] type. Therefore, converting a Variant to JSON text will convert all numerical values to [float] types. - [b]Note:[/b] If [code]full_precision[/code] is true, when stringifying floats, the unreliable digits are stringified in addition to the reliable digits to guarantee exact decoding. - The [code]indent[/code] parameter controls if and how something is indented, the string used for this parameter will be used where there should be an indent in the output, even spaces like [code]" "[/code] will work. [code]\t[/code] and [code]\n[/code] can also be used for a tab indent, or to make a newline for each indent respectively. + [b]Note:[/b] If [param full_precision] is [code]true[/code], when stringifying floats, the unreliable digits are stringified in addition to the reliable digits to guarantee exact decoding. + The [param indent] parameter controls if and how something is indented, the string used for this parameter will be used where there should be an indent in the output, even spaces like [code]" "[/code] will work. [code]\t[/code] and [code]\n[/code] can also be used for a tab indent, or to make a newline for each indent respectively. [b]Example output:[/b] [codeblock] ## JSON.stringify(my_dictionary) @@ -107,4 +116,9 @@ </description> </method> </methods> + <members> + <member name="data" type="Variant" setter="set_data" getter="get_data" default="null"> + Contains the parsed JSON data in [Variant] form. + </member> + </members> </class> |