X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/4be4e30906bcb8ee30b4d189205cb70bad6707ce..81345200c95645a1b0d2635520f96ad55dfde63f:/inspector/scripts/CodeGeneratorInspector.py

diff --git a/inspector/scripts/CodeGeneratorInspector.py b/inspector/scripts/CodeGeneratorInspector.py
new file mode 100755
index 0000000..91fa8c9
--- /dev/null
+++ b/inspector/scripts/CodeGeneratorInspector.py
@@ -0,0 +1,2614 @@
+#!/usr/bin/env python
+# Copyright (c) 2011 Google Inc. All rights reserved.
+# Copyright (c) 2012 Intel Corporation. All rights reserved.
+# Copyright (c) 2013 Apple Inc. All Rights Reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import os.path
+import sys
+import string
+import optparse
+import re
+try:
+    import json
+except ImportError:
+    import simplejson as json
+
+import CodeGeneratorInspectorStrings
+
+
+DOMAIN_DEFINE_NAME_MAP = {
+    "Database": "SQL_DATABASE",
+    "IndexedDB": "INDEXED_DATABASE",
+    "Replay": "WEB_REPLAY",
+}
+
+
+# Manually-filled map of type name replacements.
+TYPE_NAME_FIX_MAP = {
+    "RGBA": "Rgba",  # RGBA is reported to be conflicting with a define name in Windows CE.
+    "": "Empty",
+}
+
+
+TYPES_WITH_RUNTIME_CAST_SET = frozenset(["Runtime.RemoteObject", "Runtime.PropertyDescriptor", "Runtime.InternalPropertyDescriptor",
+                                         "Debugger.FunctionDetails", "Debugger.CallFrame",
+                                         "Canvas.TraceLog", "Canvas.ResourceInfo", "Canvas.ResourceState",
+                                         # This should be a temporary hack. TimelineEvent should be created via generated C++ API.
+                                         "Timeline.TimelineEvent"])
+
+TYPES_WITH_OPEN_FIELD_LIST_SET = frozenset(["Timeline.TimelineEvent",
+                                            # InspectorStyleSheet not only creates this property but wants to read it and modify it.
+                                            "CSS.CSSProperty",
+                                            # InspectorResourceAgent needs to update mime-type.
+                                            "Network.Response"])
+
+EXACTLY_INT_SUPPORTED = False
+
+INSPECTOR_TYPES_GENERATOR_CONFIG_MAP = {
+    "JavaScript": {
+        "prefix": "JS",
+        "typebuilder_dependency": "",
+        "export_macro": "JS_EXPORT_PRIVATE",
+    },
+    "Web": {
+        "prefix": "Web",
+        "typebuilder_dependency": "#include <inspector/InspectorJSTypeBuilders.h>",
+        "export_macro": "",
+    },
+}
+
+cmdline_parser = optparse.OptionParser(usage="usage: %prog [options] <Inspector.json>")
+cmdline_parser.add_option("--output_h_dir")
+cmdline_parser.add_option("--output_cpp_dir")
+cmdline_parser.add_option("--output_js_dir")
+cmdline_parser.add_option("--output_type")  # JavaScript, Web
+cmdline_parser.add_option("--write_always", action="store_true")
+cmdline_parser.add_option("--no_verification", action="store_true")
+
+try:
+    arg_options, arg_values = cmdline_parser.parse_args()
+    if (len(arg_values) < 1):
+        raise Exception("At least one plain argument expected")
+
+    input_json_filename = arg_values[0]
+    dependency_json_filenames = arg_values[1:]
+
+    output_header_dirname = arg_options.output_h_dir
+    output_cpp_dirname = arg_options.output_cpp_dir
+    output_js_dirname = arg_options.output_js_dir
+    output_type = arg_options.output_type
+
+    write_always = arg_options.write_always
+    verification = not arg_options.no_verification
+    if not output_header_dirname:
+        raise Exception("Output .h directory must be specified")
+    if not output_cpp_dirname:
+        raise Exception("Output .cpp directory must be specified")
+    if not output_js_dirname:
+        raise Exception("Output .js directory must be specified")
+    if output_type not in INSPECTOR_TYPES_GENERATOR_CONFIG_MAP.keys():
+        raise Exception("Unknown output type. Allowed types are: %s" % INSPECTOR_TYPES_GENERATOR_CONFIG_MAP.keys())
+except Exception:
+    # Work with python 2 and 3 http://docs.python.org/py3k/howto/pyporting.html
+    exc = sys.exc_info()[1]
+    sys.stderr.write("Failed to parse command-line arguments: %s\n\n" % exc)
+    sys.stderr.write("Usage: <script> Inspector.json --output_h_dir <output_header_dir> --output_cpp_dir <output_cpp_dir> --output_js_dir <output_js_dir> [--write_always] [--no_verification]\n")
+    exit(1)
+
+
+def dash_to_camelcase(word):
+    return ''.join(x.capitalize() or '-' for x in word.split('-'))
+
+
+def fix_camel_case(name):
+    refined = re.sub(r'-(\w)', lambda pat: pat.group(1).upper(), name)
+    refined = to_title_case(refined)
+    return re.sub(r'(?i)HTML|XML|WML|API|GC|XHR|DOM|CSS', lambda pat: pat.group(0).upper(), refined)
+
+
+def to_title_case(name):
+    return name[:1].upper() + name[1:]
+
+
+class Capitalizer:
+    @staticmethod
+    def lower_camel_case_to_upper(str):
+        if len(str) > 0 and str[0].islower():
+            str = str[0].upper() + str[1:]
+        return str
+
+    @staticmethod
+    def upper_camel_case_to_lower(str):
+        pos = 0
+        while pos < len(str) and str[pos].isupper():
+            pos += 1
+        if pos == 0:
+            return str
+        if pos == 1:
+            return str[0].lower() + str[1:]
+        if pos < len(str):
+            pos -= 1
+        possible_abbreviation = str[0:pos]
+        if possible_abbreviation not in Capitalizer.ABBREVIATION:
+            raise Exception("Unknown abbreviation %s" % possible_abbreviation)
+        str = possible_abbreviation.lower() + str[pos:]
+        return str
+
+    @staticmethod
+    def camel_case_to_capitalized_with_underscores(str):
+        if len(str) == 0:
+            return str
+        output = Capitalizer.split_camel_case_(str)
+        return "_".join(output).upper()
+
+    @staticmethod
+    def split_camel_case_(str):
+        output = []
+        pos_being = 0
+        pos = 1
+        has_oneletter = False
+        while pos < len(str):
+            if str[pos].isupper():
+                output.append(str[pos_being:pos].upper())
+                if pos - pos_being == 1:
+                    has_oneletter = True
+                pos_being = pos
+            pos += 1
+        output.append(str[pos_being:])
+        if has_oneletter:
+            array_pos = 0
+            while array_pos < len(output) - 1:
+                if len(output[array_pos]) == 1:
+                    array_pos_end = array_pos + 1
+                    while array_pos_end < len(output) and len(output[array_pos_end]) == 1:
+                        array_pos_end += 1
+                    if array_pos_end - array_pos > 1:
+                        possible_abbreviation = "".join(output[array_pos:array_pos_end])
+                        if possible_abbreviation.upper() in Capitalizer.ABBREVIATION:
+                            output[array_pos:array_pos_end] = [possible_abbreviation]
+                        else:
+                            array_pos = array_pos_end - 1
+                array_pos += 1
+        return output
+
+    ABBREVIATION = frozenset(["XHR", "DOM", "CSS"])
+
+VALIDATOR_IFDEF_NAME = "!ASSERT_DISABLED"
+
+
+class DomainNameFixes:
+    @classmethod
+    def get_fixed_data(cls, domain_name):
+        field_name_res = Capitalizer.upper_camel_case_to_lower(domain_name) + "Agent"
+
+        class Res(object):
+            skip_js_bind = domain_name in cls.skip_js_bind_domains
+
+            @staticmethod
+            def get_guard():
+                if domain_name in DOMAIN_DEFINE_NAME_MAP:
+                    define_name = DOMAIN_DEFINE_NAME_MAP[domain_name]
+
+                    class Guard:
+                        @staticmethod
+                        def generate_open(output):
+                            output.append("#if ENABLE(%s)\n" % define_name)
+
+                        @staticmethod
+                        def generate_close(output):
+                            output.append("#endif // ENABLE(%s)\n" % define_name)
+
+                    return Guard
+
+        return Res
+
+    skip_js_bind_domains = set(["DOMDebugger"])
+
+
+class RawTypes(object):
+    @staticmethod
+    def get(json_type):
+        if json_type == "boolean":
+            return RawTypes.Bool
+        elif json_type == "string":
+            return RawTypes.String
+        elif json_type == "array":
+            return RawTypes.Array
+        elif json_type == "object":
+            return RawTypes.Object
+        elif json_type == "integer":
+            return RawTypes.Int
+        elif json_type == "number":
+            return RawTypes.Number
+        elif json_type == "any":
+            return RawTypes.Any
+        else:
+            raise Exception("Unknown type: %s" % json_type)
+
+    # For output parameter all values are passed by pointer except RefPtr-based types.
+    class OutputPassModel:
+        class ByPointer:
+            @staticmethod
+            def get_argument_prefix():
+                return "&"
+
+            @staticmethod
+            def get_parameter_type_suffix():
+                return "*"
+
+        class ByReference:
+            @staticmethod
+            def get_argument_prefix():
+                return ""
+
+            @staticmethod
+            def get_parameter_type_suffix():
+                return "&"
+
+    class BaseType(object):
+        need_internal_runtime_cast_ = False
+
+        @classmethod
+        def request_raw_internal_runtime_cast(cls):
+            if not cls.need_internal_runtime_cast_:
+                cls.need_internal_runtime_cast_ = True
+
+        @classmethod
+        def get_raw_validator_call_text(cls):
+            return "RuntimeCastHelper::assertType<Inspector::InspectorValue::Type%s>" % cls.get_validate_method_params().template_type
+
+    class String(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "String"
+
+        get_setter_name = get_getter_name
+
+        @staticmethod
+        def get_c_initializer():
+            return "\"\""
+
+        @staticmethod
+        def get_js_bind_type():
+            return "string"
+
+        @staticmethod
+        def get_validate_method_params():
+            class ValidateMethodParams:
+                template_type = "String"
+            return ValidateMethodParams
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByPointer
+
+        @staticmethod
+        def is_heavy_value():
+            return True
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "String"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.String
+
+    class Int(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "Int"
+
+        @staticmethod
+        def get_setter_name():
+            return "Number"
+
+        @staticmethod
+        def get_c_initializer():
+            return "0"
+
+        @staticmethod
+        def get_js_bind_type():
+            return "number"
+
+        @classmethod
+        def get_raw_validator_call_text(cls):
+            return "RuntimeCastHelper::assertInt"
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByPointer
+
+        @staticmethod
+        def is_heavy_value():
+            return False
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "int"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.Int
+
+    class Number(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "Double"
+
+        @staticmethod
+        def get_setter_name():
+            return "Number"
+
+        @staticmethod
+        def get_c_initializer():
+            return "0"
+
+        @staticmethod
+        def get_js_bind_type():
+            return "number"
+
+        @staticmethod
+        def get_validate_method_params():
+            class ValidateMethodParams:
+                template_type = "Number"
+            return ValidateMethodParams
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByPointer
+
+        @staticmethod
+        def is_heavy_value():
+            return False
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "double"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.Number
+
+    class Bool(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "Boolean"
+
+        get_setter_name = get_getter_name
+
+        @staticmethod
+        def get_c_initializer():
+            return "false"
+
+        @staticmethod
+        def get_js_bind_type():
+            return "boolean"
+
+        @staticmethod
+        def get_validate_method_params():
+            class ValidateMethodParams:
+                template_type = "Boolean"
+            return ValidateMethodParams
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByPointer
+
+        @staticmethod
+        def is_heavy_value():
+            return False
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "bool"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.Bool
+
+    class Object(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "Object"
+
+        @staticmethod
+        def get_setter_name():
+            return "Value"
+
+        @staticmethod
+        def get_c_initializer():
+            return "InspectorObject::create()"
+
+        @staticmethod
+        def get_js_bind_type():
+            return "object"
+
+        @staticmethod
+        def get_output_argument_prefix():
+            return ""
+
+        @staticmethod
+        def get_validate_method_params():
+            class ValidateMethodParams:
+                template_type = "Object"
+            return ValidateMethodParams
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByReference
+
+        @staticmethod
+        def is_heavy_value():
+            return True
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "Inspector::InspectorObject"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.Object
+
+    class Any(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "Value"
+
+        get_setter_name = get_getter_name
+
+        @staticmethod
+        def get_c_initializer():
+            raise Exception("Unsupported")
+
+        @staticmethod
+        def get_js_bind_type():
+            raise Exception("Unsupported")
+
+        @staticmethod
+        def get_raw_validator_call_text():
+            return "RuntimeCastHelper::assertAny"
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByReference
+
+        @staticmethod
+        def is_heavy_value():
+            return True
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "Inspector::InspectorValue"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.Any
+
+    class Array(BaseType):
+        @staticmethod
+        def get_getter_name():
+            return "Array"
+
+        @staticmethod
+        def get_setter_name():
+            return "Value"
+
+        @staticmethod
+        def get_c_initializer():
+            return "InspectorArray::create()"
+
+        @staticmethod
+        def get_js_bind_type():
+            return "object"
+
+        @staticmethod
+        def get_output_argument_prefix():
+            return ""
+
+        @staticmethod
+        def get_validate_method_params():
+            class ValidateMethodParams:
+                template_type = "Array"
+            return ValidateMethodParams
+
+        @staticmethod
+        def get_output_pass_model():
+            return RawTypes.OutputPassModel.ByReference
+
+        @staticmethod
+        def is_heavy_value():
+            return True
+
+        @staticmethod
+        def get_array_item_raw_c_type_text():
+            return "Inspector::InspectorArray"
+
+        @staticmethod
+        def get_raw_type_model():
+            return TypeModel.Array
+
+
+def replace_right_shift(input_str):
+    return input_str.replace(">>", "> >")
+
+
+class CommandReturnPassModel:
+    class ByReference:
+        def __init__(self, var_type, set_condition):
+            self.var_type = var_type
+            self.set_condition = set_condition
+
+        def get_return_var_type(self):
+            return self.var_type
+
+        @staticmethod
+        def get_output_argument_prefix():
+            return ""
+
+        @staticmethod
+        def get_output_to_raw_expression():
+            return "%s"
+
+        def get_output_parameter_type(self):
+            return self.var_type + "&"
+
+        def get_set_return_condition(self):
+            return self.set_condition
+
+    class ByPointer:
+        def __init__(self, var_type):
+            self.var_type = var_type
+
+        def get_return_var_type(self):
+            return self.var_type
+
+        @staticmethod
+        def get_output_argument_prefix():
+            return "&"
+
+        @staticmethod
+        def get_output_to_raw_expression():
+            return "%s"
+
+        def get_output_parameter_type(self):
+            return self.var_type + "*"
+
+        @staticmethod
+        def get_set_return_condition():
+            return None
+
+    class OptOutput:
+        def __init__(self, var_type):
+            self.var_type = var_type
+
+        def get_return_var_type(self):
+            return "Inspector::TypeBuilder::OptOutput<%s>" % self.var_type
+
+        @staticmethod
+        def get_output_argument_prefix():
+            return "&"
+
+        @staticmethod
+        def get_output_to_raw_expression():
+            return "%s.getValue()"
+
+        def get_output_parameter_type(self):
+            return "Inspector::TypeBuilder::OptOutput<%s>*" % self.var_type
+
+        @staticmethod
+        def get_set_return_condition():
+            return "%s.isAssigned()"
+
+
+class TypeModel:
+    class RefPtrBased(object):
+        def __init__(self, class_name):
+            self.class_name = class_name
+            self.optional = False
+
+        def get_optional(self):
+            result = TypeModel.RefPtrBased(self.class_name)
+            result.optional = True
+            return result
+
+        def get_command_return_pass_model(self):
+            if self.optional:
+                set_condition = "%s"
+            else:
+                set_condition = None
+            return CommandReturnPassModel.ByReference(replace_right_shift("RefPtr<%s>" % self.class_name), set_condition)
+
+        def get_input_param_type_text(self):
+            return replace_right_shift("PassRefPtr<%s>" % self.class_name)
+
+        @staticmethod
+        def get_event_setter_expression_pattern():
+            return "%s"
+
+    class Enum(object):
+        def __init__(self, base_type_name):
+            self.type_name = base_type_name + "::Enum"
+
+        def get_optional(base_self):
+            class EnumOptional:
+                @classmethod
+                def get_optional(cls):
+                    return cls
+
+                @staticmethod
+                def get_command_return_pass_model():
+                    return CommandReturnPassModel.OptOutput(base_self.type_name)
+
+                @staticmethod
+                def get_input_param_type_text():
+                    return base_self.type_name + "*"
+
+                @staticmethod
+                def get_event_setter_expression_pattern():
+                    raise Exception("TODO")
+            return EnumOptional
+
+        def get_command_return_pass_model(self):
+            return CommandReturnPassModel.ByPointer(self.type_name)
+
+        def get_input_param_type_text(self):
+            return self.type_name
+
+        @staticmethod
+        def get_event_setter_expression_pattern():
+            return "%s"
+
+    class ValueType(object):
+        def __init__(self, type_name, is_heavy):
+            self.type_name = type_name
+            self.is_heavy = is_heavy
+
+        def get_optional(self):
+            return self.ValueOptional(self)
+
+        def get_command_return_pass_model(self):
+            return CommandReturnPassModel.ByPointer(self.type_name)
+
+        def get_input_param_type_text(self):
+            if self.is_heavy:
+                return "const %s&" % self.type_name
+            else:
+                return self.type_name
+
+        def get_opt_output_type_(self):
+            return self.type_name
+
+        @staticmethod
+        def get_event_setter_expression_pattern():
+            return "%s"
+
+        class ValueOptional:
+            def __init__(self, base):
+                self.base = base
+
+            def get_optional(self):
+                return self
+
+            def get_command_return_pass_model(self):
+                return CommandReturnPassModel.OptOutput(self.base.get_opt_output_type_())
+
+            def get_input_param_type_text(self):
+                return "const %s* const" % self.base.type_name
+
+            @staticmethod
+            def get_event_setter_expression_pattern():
+                return "*%s"
+
+    class ExactlyInt(ValueType):
+        def __init__(self):
+            TypeModel.ValueType.__init__(self, "int", False)
+
+        def get_input_param_type_text(self):
+            return "Inspector::TypeBuilder::ExactlyInt"
+
+        def get_opt_output_type_(self):
+            return "Inspector::TypeBuilder::ExactlyInt"
+
+    @classmethod
+    def init_class(cls):
+        cls.Bool = cls.ValueType("bool", False)
+        if EXACTLY_INT_SUPPORTED:
+            cls.Int = cls.ExactlyInt()
+        else:
+            cls.Int = cls.ValueType("int", False)
+        cls.Number = cls.ValueType("double", False)
+        cls.String = cls.ValueType("String", True,)
+        cls.Object = cls.RefPtrBased("Inspector::InspectorObject")
+        cls.Array = cls.RefPtrBased("Inspector::InspectorArray")
+        cls.Any = cls.RefPtrBased("Inspector::InspectorValue")
+
+TypeModel.init_class()
+
+
+# Collection of InspectorObject class methods that are likely to be overloaded in generated class.
+# We must explicitly import all overloaded methods or they won't be available to user.
+INSPECTOR_OBJECT_SETTER_NAMES = frozenset(["setValue", "setBoolean", "setNumber", "setString", "setValue", "setObject", "setArray"])
+
+
+def fix_type_name(json_name):
+    if json_name in TYPE_NAME_FIX_MAP:
+        fixed = TYPE_NAME_FIX_MAP[json_name]
+
+        class Result(object):
+            class_name = fixed
+
+            @staticmethod
+            def output_comment(writer):
+                writer.newline("// Type originally was named '%s'.\n" % json_name)
+    else:
+
+        class Result(object):
+            class_name = json_name
+
+            @staticmethod
+            def output_comment(writer):
+                pass
+
+    return Result
+
+
+class Writer:
+    def __init__(self, output, indent):
+        self.output = output
+        self.indent = indent
+
+    def newline(self, str):
+        if (self.indent):
+            self.output.append(self.indent)
+        self.output.append(str)
+
+    def append(self, str):
+        self.output.append(str)
+
+    def newline_multiline(self, str):
+        parts = str.split('\n')
+        self.newline(parts[0])
+        for p in parts[1:]:
+            self.output.append('\n')
+            if p:
+                self.newline(p)
+
+    def append_multiline(self, str):
+        parts = str.split('\n')
+        self.append(parts[0])
+        for p in parts[1:]:
+            self.output.append('\n')
+            if p:
+                self.newline(p)
+
+    def get_indent(self):
+        return self.indent
+
+    def get_indented(self, additional_indent):
+        return Writer(self.output, self.indent + additional_indent)
+
+    def insert_writer(self, additional_indent):
+        new_output = []
+        self.output.append(new_output)
+        return Writer(new_output, self.indent + additional_indent)
+
+
+class EnumConstants:
+    map_ = {}
+    constants_ = []
+
+    @classmethod
+    def add_constant(cls, value):
+        if value in cls.map_:
+            return cls.map_[value]
+        else:
+            pos = len(cls.map_)
+            cls.map_[value] = pos
+            cls.constants_.append(value)
+            return pos
+
+    @classmethod
+    def get_enum_constant_code(cls):
+        output = []
+        for item in cls.constants_:
+            output.append("    \"" + item + "\"")
+        return ",\n".join(output) + "\n"
+
+
+# Typebuilder code is generated in several passes: first typedefs, then other classes.
+# Manual pass management is needed because we cannot have forward declarations for typedefs.
+class TypeBuilderPass:
+    TYPEDEF = "typedef"
+    MAIN = "main"
+
+
+class TypeBindings:
+    @staticmethod
+    def create_named_type_declaration(json_typable, context_domain_name, type_data):
+        json_type = type_data.get_json_type()
+
+        class Helper:
+            is_ad_hoc = False
+            full_name_prefix_for_use = "Inspector::TypeBuilder::" + context_domain_name + "::"
+            full_name_prefix_for_impl = "Inspector::TypeBuilder::" + context_domain_name + "::"
+
+            @staticmethod
+            def write_doc(writer):
+                if "description" in json_type:
+                    writer.newline("/* ")
+                    writer.append(json_type["description"])
+                    writer.append(" */\n")
+
+            @staticmethod
+            def add_to_forward_listener(forward_listener):
+                forward_listener.add_type_data(type_data)
+
+
+        fixed_type_name = fix_type_name(json_type["id"])
+        return TypeBindings.create_type_declaration_(json_typable, context_domain_name, fixed_type_name, Helper)
+
+    @staticmethod
+    def create_ad_hoc_type_declaration(json_typable, context_domain_name, ad_hoc_type_context):
+        class Helper:
+            is_ad_hoc = True
+            full_name_prefix_for_use = ad_hoc_type_context.container_relative_name_prefix
+            full_name_prefix_for_impl = ad_hoc_type_context.container_full_name_prefix
+
+            @staticmethod
+            def write_doc(writer):
+                pass
+
+            @staticmethod
+            def add_to_forward_listener(forward_listener):
+                pass
+        fixed_type_name = ad_hoc_type_context.get_type_name_fix()
+        return TypeBindings.create_type_declaration_(json_typable, context_domain_name, fixed_type_name, Helper)
+
+    @staticmethod
+    def create_type_declaration_(json_typable, context_domain_name, fixed_type_name, helper):
+        if json_typable["type"] == "string":
+            if "enum" in json_typable:
+
+                class EnumBinding:
+                    need_user_runtime_cast_ = False
+                    need_internal_runtime_cast_ = False
+
+                    @classmethod
+                    def resolve_inner(cls, resolve_context):
+                        pass
+
+                    @classmethod
+                    def request_user_runtime_cast(cls, request):
+                        if request:
+                            cls.need_user_runtime_cast_ = True
+                            request.acknowledge()
+
+                    @classmethod
+                    def request_internal_runtime_cast(cls):
+                        cls.need_internal_runtime_cast_ = True
+
+                    @classmethod
+                    def get_code_generator(enum_binding_cls):
+                        #FIXME: generate ad-hoc enums too once we figure out how to better implement them in C++.
+                        comment_out = helper.is_ad_hoc
+
+                        class CodeGenerator:
+                            @staticmethod
+                            def generate_type_builder(writer, generate_context):
+                                enum = json_typable["enum"]
+                                helper.write_doc(writer)
+                                enum_name = fixed_type_name.class_name
+                                fixed_type_name.output_comment(writer)
+                                writer.newline("struct ")
+                                writer.append(enum_name)
+                                writer.append(" {\n")
+                                writer.newline("    enum Enum {\n")
+                                for enum_item in enum:
+                                    enum_pos = EnumConstants.add_constant(enum_item)
+
+                                    item_c_name = fix_camel_case(enum_item)
+                                    if item_c_name in TYPE_NAME_FIX_MAP:
+                                        item_c_name = TYPE_NAME_FIX_MAP[item_c_name]
+                                    writer.newline("        ")
+                                    writer.append(item_c_name)
+                                    writer.append(" = ")
+                                    writer.append("%s" % enum_pos)
+                                    writer.append(",\n")
+                                writer.newline("    };\n")
+                                if enum_binding_cls.need_user_runtime_cast_:
+                                    raise Exception("Not yet implemented")
+
+                                if enum_binding_cls.need_internal_runtime_cast_:
+                                    writer.append("#if %s\n" % VALIDATOR_IFDEF_NAME)
+                                    writer.newline("    static void assertCorrectValue(Inspector::InspectorValue* value);\n")
+                                    writer.append("#endif  // %s\n" % VALIDATOR_IFDEF_NAME)
+
+                                    validator_writer = generate_context.validator_writer
+
+                                    domain_fixes = DomainNameFixes.get_fixed_data(context_domain_name)
+                                    domain_guard = domain_fixes.get_guard()
+                                    if domain_guard:
+                                        domain_guard.generate_open(validator_writer)
+
+                                    validator_writer.newline("void %s%s::assertCorrectValue(Inspector::InspectorValue* value)\n" % (helper.full_name_prefix_for_impl, enum_name))
+                                    validator_writer.newline("{\n")
+                                    validator_writer.newline("    WTF::String s;\n")
+                                    validator_writer.newline("    bool cast_res = value->asString(&s);\n")
+                                    validator_writer.newline("    ASSERT(cast_res);\n")
+                                    if len(enum) > 0:
+                                        condition_list = []
+                                        for enum_item in enum:
+                                            enum_pos = EnumConstants.add_constant(enum_item)
+                                            condition_list.append("s == \"%s\"" % enum_item)
+                                        validator_writer.newline("    ASSERT(%s);\n" % " || ".join(condition_list))
+                                    validator_writer.newline("}\n")
+
+                                    if domain_guard:
+                                        domain_guard.generate_close(validator_writer)
+
+                                    validator_writer.newline("\n\n")
+
+                                writer.newline("}; // struct ")
+                                writer.append(enum_name)
+                                writer.append("\n")
+
+                            @staticmethod
+                            def register_use(forward_listener):
+                                pass
+
+                            @staticmethod
+                            def get_generate_pass_id():
+                                return TypeBuilderPass.MAIN
+
+                        return CodeGenerator
+
+                    @classmethod
+                    def get_validator_call_text(cls):
+                        return helper.full_name_prefix_for_use + fixed_type_name.class_name + "::assertCorrectValue"
+
+                    @classmethod
+                    def get_array_item_c_type_text(cls):
+                        return helper.full_name_prefix_for_use + fixed_type_name.class_name + "::Enum"
+
+                    @staticmethod
+                    def get_setter_value_expression_pattern():
+                        return "Inspector::TypeBuilder::get%sEnumConstantValue(%s)"
+
+                    @staticmethod
+                    def reduce_to_raw_type():
+                        return RawTypes.String
+
+                    @staticmethod
+                    def get_type_model():
+                        return TypeModel.Enum(helper.full_name_prefix_for_use + fixed_type_name.class_name)
+
+                return EnumBinding
+            else:
+                if helper.is_ad_hoc:
+
+                    class PlainString:
+                        @classmethod
+                        def resolve_inner(cls, resolve_context):
+                            pass
+
+                        @staticmethod
+                        def request_user_runtime_cast(request):
+                            raise Exception("Unsupported")
+
+                        @staticmethod
+                        def request_internal_runtime_cast():
+                            pass
+
+                        @staticmethod
+                        def get_code_generator():
+                            return None
+
+                        @classmethod
+                        def get_validator_call_text(cls):
+                            return RawTypes.String.get_raw_validator_call_text()
+
+                        @staticmethod
+                        def reduce_to_raw_type():
+                            return RawTypes.String
+
+                        @staticmethod
+                        def get_type_model():
+                            return TypeModel.String
+
+                        @staticmethod
+                        def get_setter_value_expression_pattern():
+                            return None
+
+                        @classmethod
+                        def get_array_item_c_type_text(cls):
+                            return cls.reduce_to_raw_type().get_array_item_raw_c_type_text()
+
+                    return PlainString
+
+                else:
+
+                    class TypedefString:
+                        @classmethod
+                        def resolve_inner(cls, resolve_context):
+                            pass
+
+                        @staticmethod
+                        def request_user_runtime_cast(request):
+                            raise Exception("Unsupported")
+
+                        @staticmethod
+                        def request_internal_runtime_cast():
+                            RawTypes.String.request_raw_internal_runtime_cast()
+
+                        @staticmethod
+                        def get_code_generator():
+                            class CodeGenerator:
+                                @staticmethod
+                                def generate_type_builder(writer, generate_context):
+                                    helper.write_doc(writer)
+                                    fixed_type_name.output_comment(writer)
+                                    writer.newline("typedef String ")
+                                    writer.append(fixed_type_name.class_name)
+                                    writer.append(";\n\n")
+
+                                @staticmethod
+                                def register_use(forward_listener):
+                                    pass
+
+                                @staticmethod
+                                def get_generate_pass_id():
+                                    return TypeBuilderPass.TYPEDEF
+
+                            return CodeGenerator
+
+                        @classmethod
+                        def get_validator_call_text(cls):
+                            return RawTypes.String.get_raw_validator_call_text()
+
+                        @staticmethod
+                        def reduce_to_raw_type():
+                            return RawTypes.String
+
+                        @staticmethod
+                        def get_type_model():
+                            return TypeModel.ValueType("%s%s" % (helper.full_name_prefix_for_use, fixed_type_name.class_name), True)
+
+                        @staticmethod
+                        def get_setter_value_expression_pattern():
+                            return None
+
+                        @classmethod
+                        def get_array_item_c_type_text(cls):
+                            return "const %s%s&" % (helper.full_name_prefix_for_use, fixed_type_name.class_name)
+
+                    return TypedefString
+
+        elif json_typable["type"] == "integer":
+                if helper.is_ad_hoc:
+
+                    class PlainInteger:
+                        @classmethod
+                        def resolve_inner(cls, resolve_context):
+                            pass
+
+                        @staticmethod
+                        def request_user_runtime_cast(request):
+                            raise Exception("Unsupported")
+
+                        @staticmethod
+                        def request_internal_runtime_cast():
+                            pass
+
+                        @staticmethod
+                        def get_code_generator():
+                            return None
+
+                        @classmethod
+                        def get_validator_call_text(cls):
+                            return RawTypes.Int.get_raw_validator_call_text()
+
+                        @staticmethod
+                        def reduce_to_raw_type():
+                            return RawTypes.Int
+
+                        @staticmethod
+                        def get_type_model():
+                            return TypeModel.Int
+
+                        @staticmethod
+                        def get_setter_value_expression_pattern():
+                            return None
+
+                        @classmethod
+                        def get_array_item_c_type_text(cls):
+                            return cls.reduce_to_raw_type().get_array_item_raw_c_type_text()
+
+                    return PlainInteger
+
+                else:
+
+                    class TypedefInteger:
+                        @classmethod
+                        def resolve_inner(cls, resolve_context):
+                            pass
+
+                        @staticmethod
+                        def request_user_runtime_cast(request):
+                            raise Exception("Unsupported")
+
+                        @staticmethod
+                        def request_internal_runtime_cast():
+                            RawTypes.Int.request_raw_internal_runtime_cast()
+
+                        @staticmethod
+                        def get_code_generator():
+                            class CodeGenerator:
+                                @staticmethod
+                                def generate_type_builder(writer, generate_context):
+                                    helper.write_doc(writer)
+                                    fixed_type_name.output_comment(writer)
+                                    writer.newline("typedef int ")
+                                    writer.append(fixed_type_name.class_name)
+                                    writer.append(";\n\n")
+
+                                @staticmethod
+                                def register_use(forward_listener):
+                                    pass
+
+                                @staticmethod
+                                def get_generate_pass_id():
+                                    return TypeBuilderPass.TYPEDEF
+
+                            return CodeGenerator
+
+                        @classmethod
+                        def get_validator_call_text(cls):
+                            return RawTypes.Int.get_raw_validator_call_text()
+
+                        @staticmethod
+                        def reduce_to_raw_type():
+                            return RawTypes.Int
+
+                        @staticmethod
+                        def get_type_model():
+                            return TypeModel.Int
+
+                        @staticmethod
+                        def get_setter_value_expression_pattern():
+                            return None
+
+                        @classmethod
+                        def get_array_item_c_type_text(cls):
+                            return helper.full_name_prefix_for_use + fixed_type_name.class_name
+
+                    return TypedefInteger
+
+        elif json_typable["type"] == "object":
+            if "properties" in json_typable:
+
+                class ClassBinding:
+                    resolve_data_ = None
+                    need_user_runtime_cast_ = False
+                    need_internal_runtime_cast_ = False
+
+                    @classmethod
+                    def resolve_inner(cls, resolve_context):
+                        if cls.resolve_data_:
+                            return
+
+                        properties = json_typable["properties"]
+                        main = []
+                        optional = []
+
+                        ad_hoc_type_list = []
+
+                        for prop in properties:
+                            prop_name = prop["name"]
+                            ad_hoc_type_context = cls.AdHocTypeContextImpl(prop_name, fixed_type_name.class_name, resolve_context, ad_hoc_type_list, helper.full_name_prefix_for_impl)
+                            binding = resolve_param_type(prop, context_domain_name, ad_hoc_type_context)
+
+                            code_generator = binding.get_code_generator()
+                            if code_generator:
+                                code_generator.register_use(resolve_context.forward_listener)
+
+                            class PropertyData:
+                                param_type_binding = binding
+                                p = prop
+
+                            if prop.get("optional"):
+                                optional.append(PropertyData)
+                            else:
+                                main.append(PropertyData)
+
+                        class ResolveData:
+                            main_properties = main
+                            optional_properties = optional
+                            ad_hoc_types = ad_hoc_type_list
+
+                        cls.resolve_data_ = ResolveData
+
+                        for ad_hoc in ad_hoc_type_list:
+                            ad_hoc.resolve_inner(resolve_context)
+
+                    @classmethod
+                    def request_user_runtime_cast(cls, request):
+                        if not request:
+                            return
+                        cls.need_user_runtime_cast_ = True
+                        request.acknowledge()
+                        cls.request_internal_runtime_cast()
+
+                    @classmethod
+                    def request_internal_runtime_cast(cls):
+                        if cls.need_internal_runtime_cast_:
+                            return
+                        cls.need_internal_runtime_cast_ = True
+                        for p in cls.resolve_data_.main_properties:
+                            p.param_type_binding.request_internal_runtime_cast()
+                        for p in cls.resolve_data_.optional_properties:
+                            p.param_type_binding.request_internal_runtime_cast()
+
+                    @classmethod
+                    def get_code_generator(class_binding_cls):
+                        class CodeGenerator:
+                            @classmethod
+                            def generate_type_builder(cls, writer, generate_context):
+                                resolve_data = class_binding_cls.resolve_data_
+                                helper.write_doc(writer)
+                                class_name = fixed_type_name.class_name
+
+                                is_open_type = (context_domain_name + "." + class_name) in TYPES_WITH_OPEN_FIELD_LIST_SET
+
+                                fixed_type_name.output_comment(writer)
+                                writer.newline("class ")
+                                writer.append(class_name)
+                                writer.append(" : public ")
+                                if is_open_type:
+                                    writer.append("Inspector::InspectorObject")
+                                else:
+                                    writer.append("Inspector::InspectorObjectBase")
+                                writer.append(" {\n")
+                                writer.newline("public:\n")
+                                ad_hoc_type_writer = writer.insert_writer("    ")
+
+                                for ad_hoc_type in resolve_data.ad_hoc_types:
+                                    code_generator = ad_hoc_type.get_code_generator()
+                                    if code_generator:
+                                        code_generator.generate_type_builder(ad_hoc_type_writer, generate_context)
+
+                                writer.newline_multiline(
+"""    enum {
+        NoFieldsSet = 0,
+""")
+
+                                state_enum_items = []
+                                if len(resolve_data.main_properties) > 0:
+                                    pos = 0
+                                    for prop_data in resolve_data.main_properties:
+                                        item_name = Capitalizer.lower_camel_case_to_upper(prop_data.p["name"]) + "Set"
+                                        state_enum_items.append(item_name)
+                                        writer.newline("        %s = 1 << %s,\n" % (item_name, pos))
+                                        pos += 1
+                                    all_fields_set_value = "(" + (" | ".join(state_enum_items)) + ")"
+                                else:
+                                    all_fields_set_value = "0"
+
+                                writer.newline_multiline(CodeGeneratorInspectorStrings.class_binding_builder_part_1
+                                                         % (all_fields_set_value, class_name, class_name))
+
+                                pos = 0
+                                for prop_data in resolve_data.main_properties:
+                                    prop_name = prop_data.p["name"]
+
+                                    param_type_binding = prop_data.param_type_binding
+                                    param_raw_type = param_type_binding.reduce_to_raw_type()
+
+                                    writer.newline_multiline(CodeGeneratorInspectorStrings.class_binding_builder_part_2
+                                        % (state_enum_items[pos],
+                                           Capitalizer.lower_camel_case_to_upper(prop_name),
+                                           param_type_binding.get_type_model().get_input_param_type_text(),
+                                           state_enum_items[pos], prop_name,
+                                           param_raw_type.get_setter_name(), prop_name,
+                                           format_setter_value_expression(param_type_binding, "value"),
+                                           state_enum_items[pos]))
+
+                                    pos += 1
+
+                                writer.newline_multiline(CodeGeneratorInspectorStrings.class_binding_builder_part_3
+                                                         % (class_name, class_name, class_name, class_name, class_name))
+
+                                writer.newline("    /*\n")
+                                writer.newline("     * Synthetic constructor:\n")
+                                writer.newline("     * RefPtr<%s> result = %s::create()" % (class_name, class_name))
+                                for prop_data in resolve_data.main_properties:
+                                    writer.append_multiline("\n     *     .set%s(...)" % Capitalizer.lower_camel_case_to_upper(prop_data.p["name"]))
+                                writer.append_multiline(";\n     */\n")
+
+                                writer.newline_multiline(CodeGeneratorInspectorStrings.class_binding_builder_part_4)
+
+                                writer.newline("    typedef Inspector::TypeBuilder::StructItemTraits ItemTraits;\n")
+
+                                for prop_data in resolve_data.optional_properties:
+                                    prop_name = prop_data.p["name"]
+                                    param_type_binding = prop_data.param_type_binding
+                                    setter_name = "set%s" % Capitalizer.lower_camel_case_to_upper(prop_name)
+
+                                    writer.append_multiline("\n    void %s" % setter_name)
+                                    writer.append("(%s value)\n" % param_type_binding.get_type_model().get_input_param_type_text())
+                                    writer.newline("    {\n")
+                                    writer.newline("        this->set%s(ASCIILiteral(\"%s\"), %s);\n"
+                                        % (param_type_binding.reduce_to_raw_type().get_setter_name(), prop_data.p["name"],
+                                           format_setter_value_expression(param_type_binding, "value")))
+                                    writer.newline("    }\n")
+
+
+                                    if setter_name in INSPECTOR_OBJECT_SETTER_NAMES:
+                                        writer.newline("    using Inspector::InspectorObjectBase::%s;\n\n" % setter_name)
+
+                                if class_binding_cls.need_user_runtime_cast_:
+                                    writer.newline("    static PassRefPtr<%s> runtimeCast(PassRefPtr<Inspector::InspectorValue> value)\n" % class_name)
+                                    writer.newline("    {\n")
+                                    writer.newline("        RefPtr<Inspector::InspectorObject> object;\n")
+                                    writer.newline("        bool castRes = value->asObject(&object);\n")
+                                    writer.newline("        ASSERT_UNUSED(castRes, castRes);\n")
+                                    writer.append("#if %s\n" % VALIDATOR_IFDEF_NAME)
+                                    writer.newline("        assertCorrectValue(object.get());\n")
+                                    writer.append("#endif  // %s\n" % VALIDATOR_IFDEF_NAME)
+                                    writer.newline("        COMPILE_ASSERT(sizeof(%s) == sizeof(Inspector::InspectorObjectBase), type_cast_problem);\n" % class_name)
+                                    writer.newline("        return static_cast<%s*>(static_cast<Inspector::InspectorObjectBase*>(object.get()));\n" % class_name)
+                                    writer.newline("    }\n")
+                                    writer.append("\n")
+
+                                if class_binding_cls.need_internal_runtime_cast_:
+                                    writer.append("#if %s\n" % VALIDATOR_IFDEF_NAME)
+                                    writer.newline("    static %s void assertCorrectValue(Inspector::InspectorValue* value);\n" % INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["export_macro"])
+                                    writer.append("#endif  // %s\n" % VALIDATOR_IFDEF_NAME)
+
+                                    closed_field_set = (context_domain_name + "." + class_name) not in TYPES_WITH_OPEN_FIELD_LIST_SET
+
+                                    validator_writer = generate_context.validator_writer
+
+                                    domain_fixes = DomainNameFixes.get_fixed_data(context_domain_name)
+                                    domain_guard = domain_fixes.get_guard()
+                                    if domain_guard:
+                                        domain_guard.generate_open(validator_writer)
+
+                                    validator_writer.newline("void %s%s::assertCorrectValue(Inspector::InspectorValue* value)\n" % (helper.full_name_prefix_for_impl, class_name))
+                                    validator_writer.newline("{\n")
+                                    validator_writer.newline("    RefPtr<InspectorObject> object;\n")
+                                    validator_writer.newline("    bool castRes = value->asObject(&object);\n")
+                                    validator_writer.newline("    ASSERT_UNUSED(castRes, castRes);\n")
+                                    for prop_data in resolve_data.main_properties:
+                                        validator_writer.newline("    {\n")
+                                        it_name = "%sPos" % prop_data.p["name"]
+                                        validator_writer.newline("        InspectorObject::iterator %s;\n" % it_name)
+                                        validator_writer.newline("        %s = object->find(\"%s\");\n" % (it_name, prop_data.p["name"]))
+                                        validator_writer.newline("        ASSERT(%s != object->end());\n" % it_name)
+                                        validator_writer.newline("        %s(%s->value.get());\n" % (prop_data.param_type_binding.get_validator_call_text(), it_name))
+                                        validator_writer.newline("    }\n")
+
+                                    if closed_field_set:
+                                        validator_writer.newline("    int foundPropertiesCount = %s;\n" % len(resolve_data.main_properties))
+
+                                    for prop_data in resolve_data.optional_properties:
+                                        validator_writer.newline("    {\n")
+                                        it_name = "%sPos" % prop_data.p["name"]
+                                        validator_writer.newline("        InspectorObject::iterator %s;\n" % it_name)
+                                        validator_writer.newline("        %s = object->find(\"%s\");\n" % (it_name, prop_data.p["name"]))
+                                        validator_writer.newline("        if (%s != object->end()) {\n" % it_name)
+                                        validator_writer.newline("            %s(%s->value.get());\n" % (prop_data.param_type_binding.get_validator_call_text(), it_name))
+                                        if closed_field_set:
+                                            validator_writer.newline("            ++foundPropertiesCount;\n")
+                                        validator_writer.newline("        }\n")
+                                        validator_writer.newline("    }\n")
+
+                                    if closed_field_set:
+                                        validator_writer.newline("    if (foundPropertiesCount != object->size())\n")
+                                        validator_writer.newline("        FATAL(\"Unexpected properties in object: %s\\n\", object->toJSONString().ascii().data());\n")
+                                    validator_writer.newline("}\n")
+
+                                    if domain_guard:
+                                        domain_guard.generate_close(validator_writer)
+
+                                    validator_writer.newline("\n\n")
+
+                                if is_open_type:
+                                    cpp_writer = generate_context.cpp_writer
+                                    writer.append("\n")
+                                    writer.newline("    // Property names for type generated as open.\n")
+                                    for prop_data in resolve_data.main_properties + resolve_data.optional_properties:
+                                        prop_name = prop_data.p["name"]
+                                        prop_field_name = Capitalizer.lower_camel_case_to_upper(prop_name)
+                                        writer.newline("    static const char* %s;\n" % (prop_field_name))
+                                        cpp_writer.newline("const char* %s%s::%s = \"%s\";\n" % (helper.full_name_prefix_for_impl, class_name, prop_field_name, prop_name))
+
+
+                                writer.newline("};\n\n")
+
+                            @staticmethod
+                            def generate_forward_declaration(writer):
+                                class_name = fixed_type_name.class_name
+                                writer.newline("class ")
+                                writer.append(class_name)
+                                writer.append(";\n")
+
+                            @staticmethod
+                            def register_use(forward_listener):
+                                helper.add_to_forward_listener(forward_listener)
+
+                            @staticmethod
+                            def get_generate_pass_id():
+                                return TypeBuilderPass.MAIN
+
+                        return CodeGenerator
+
+                    @staticmethod
+                    def get_validator_call_text():
+                        return helper.full_name_prefix_for_use + fixed_type_name.class_name + "::assertCorrectValue"
+
+                    @classmethod
+                    def get_array_item_c_type_text(cls):
+                        return helper.full_name_prefix_for_use + fixed_type_name.class_name
+
+                    @staticmethod
+                    def get_setter_value_expression_pattern():
+                        return None
+
+                    @staticmethod
+                    def reduce_to_raw_type():
+                        return RawTypes.Object
+
+                    @staticmethod
+                    def get_type_model():
+                        return TypeModel.RefPtrBased(helper.full_name_prefix_for_use + fixed_type_name.class_name)
+
+                    class AdHocTypeContextImpl:
+                        def __init__(self, property_name, class_name, resolve_context, ad_hoc_type_list, parent_full_name_prefix):
+                            self.property_name = property_name
+                            self.class_name = class_name
+                            self.resolve_context = resolve_context
+                            self.ad_hoc_type_list = ad_hoc_type_list
+                            self.container_full_name_prefix = parent_full_name_prefix + class_name + "::"
+                            self.container_relative_name_prefix = ""
+
+                        def get_type_name_fix(self):
+                            class NameFix:
+                                class_name = Capitalizer.lower_camel_case_to_upper(self.property_name)
+
+                                @staticmethod
+                                def output_comment(writer):
+                                    writer.newline("// Named after property name '%s' while generating %s.\n" % (self.property_name, self.class_name))
+
+                            return NameFix
+
+                        def add_type(self, binding):
+                            self.ad_hoc_type_list.append(binding)
+
+                return ClassBinding
+            else:
+
+                class PlainObjectBinding:
+                    @classmethod
+                    def resolve_inner(cls, resolve_context):
+                        pass
+
+                    @staticmethod
+                    def request_user_runtime_cast(request):
+                        pass
+
+                    @staticmethod
+                    def request_internal_runtime_cast():
+                        RawTypes.Object.request_raw_internal_runtime_cast()
+
+                    @staticmethod
+                    def get_code_generator():
+                        pass
+
+                    @staticmethod
+                    def get_validator_call_text():
+                        return "RuntimeCastHelper::assertType<InspectorValue::TypeObject>"
+
+                    @classmethod
+                    def get_array_item_c_type_text(cls):
+                        return cls.reduce_to_raw_type().get_array_item_raw_c_type_text()
+
+                    @staticmethod
+                    def get_setter_value_expression_pattern():
+                        return None
+
+                    @staticmethod
+                    def reduce_to_raw_type():
+                        return RawTypes.Object
+
+                    @staticmethod
+                    def get_type_model():
+                        return TypeModel.Object
+
+                return PlainObjectBinding
+        elif json_typable["type"] == "array":
+            if "items" in json_typable:
+
+                ad_hoc_types = []
+
+                class AdHocTypeContext:
+                    container_full_name_prefix = "<not yet defined>"
+                    container_relative_name_prefix = ""
+
+                    @staticmethod
+                    def get_type_name_fix():
+                        return fixed_type_name
+
+                    @staticmethod
+                    def add_type(binding):
+                        ad_hoc_types.append(binding)
+
+                item_binding = resolve_param_type(json_typable["items"], context_domain_name, AdHocTypeContext)
+
+                class ArrayBinding:
+                    resolve_data_ = None
+                    need_internal_runtime_cast_ = False
+
+                    @classmethod
+                    def resolve_inner(cls, resolve_context):
+                        if cls.resolve_data_:
+                            return
+
+                        class ResolveData:
+                            item_type_binding = item_binding
+                            ad_hoc_type_list = ad_hoc_types
+
+                        cls.resolve_data_ = ResolveData
+
+                        for t in ad_hoc_types:
+                            t.resolve_inner(resolve_context)
+
+                    @classmethod
+                    def request_user_runtime_cast(cls, request):
+                        raise Exception("Not implemented yet")
+
+                    @classmethod
+                    def request_internal_runtime_cast(cls):
+                        if cls.need_internal_runtime_cast_:
+                            return
+                        cls.need_internal_runtime_cast_ = True
+                        cls.resolve_data_.item_type_binding.request_internal_runtime_cast()
+
+                    @classmethod
+                    def get_code_generator(array_binding_cls):
+
+                        class CodeGenerator:
+                            @staticmethod
+                            def generate_type_builder(writer, generate_context):
+                                ad_hoc_type_writer = writer
+
+                                resolve_data = array_binding_cls.resolve_data_
+
+                                for ad_hoc_type in resolve_data.ad_hoc_type_list:
+                                    code_generator = ad_hoc_type.get_code_generator()
+                                    if code_generator:
+                                        code_generator.generate_type_builder(ad_hoc_type_writer, generate_context)
+
+                            @staticmethod
+                            def generate_forward_declaration(writer):
+                                pass
+
+                            @staticmethod
+                            def register_use(forward_listener):
+                                item_code_generator = item_binding.get_code_generator()
+                                if item_code_generator:
+                                    item_code_generator.register_use(forward_listener)
+
+                            @staticmethod
+                            def get_generate_pass_id():
+                                return TypeBuilderPass.MAIN
+
+                        return CodeGenerator
+
+                    @classmethod
+                    def get_validator_call_text(cls):
+                        return cls.get_array_item_c_type_text() + "::assertCorrectValue"
+
+                    @classmethod
+                    def get_array_item_c_type_text(cls):
+                        return replace_right_shift("Inspector::TypeBuilder::Array<%s>" % cls.resolve_data_.item_type_binding.get_array_item_c_type_text())
+
+                    @staticmethod
+                    def get_setter_value_expression_pattern():
+                        return None
+
+                    @staticmethod
+                    def reduce_to_raw_type():
+                        return RawTypes.Array
+
+                    @classmethod
+                    def get_type_model(cls):
+                        return TypeModel.RefPtrBased(cls.get_array_item_c_type_text())
+
+                return ArrayBinding
+            else:
+                # Fall-through to raw type.
+                pass
+
+        raw_type = RawTypes.get(json_typable["type"])
+
+        return RawTypeBinding(raw_type)
+
+
+class RawTypeBinding:
+    def __init__(self, raw_type):
+        self.raw_type_ = raw_type
+
+    def resolve_inner(self, resolve_context):
+        pass
+
+    def request_user_runtime_cast(self, request):
+        raise Exception("Unsupported")
+
+    def request_internal_runtime_cast(self):
+        self.raw_type_.request_raw_internal_runtime_cast()
+
+    def get_code_generator(self):
+        return None
+
+    def get_validator_call_text(self):
+        return self.raw_type_.get_raw_validator_call_text()
+
+    def get_array_item_c_type_text(self):
+        return self.raw_type_.get_array_item_raw_c_type_text()
+
+    def get_setter_value_expression_pattern(self):
+        return None
+
+    def reduce_to_raw_type(self):
+        return self.raw_type_
+
+    def get_type_model(self):
+        return self.raw_type_.get_raw_type_model()
+
+
+class TypeData(object):
+    def __init__(self, json_type, json_domain, domain_data):
+        self.json_type_ = json_type
+        self.json_domain_ = json_domain
+        self.domain_data_ = domain_data
+
+        if "type" not in json_type:
+            raise Exception("Unknown type")
+
+        json_type_name = json_type["type"]
+        self.raw_type_ = RawTypes.get(json_type_name)
+        self.binding_being_resolved_ = False
+        self.binding_ = None
+
+    def get_raw_type(self):
+        return self.raw_type_
+
+    def get_binding(self):
+        if not self.binding_:
+            if self.binding_being_resolved_:
+                raise Exception("Type %s is already being resolved" % self.json_type_["type"])
+            # Resolve only lazily, because resolving one named type may require resolving some other named type.
+            self.binding_being_resolved_ = True
+            try:
+                self.binding_ = TypeBindings.create_named_type_declaration(self.json_type_, self.json_domain_["domain"], self)
+            finally:
+                self.binding_being_resolved_ = False
+
+        return self.binding_
+
+    def get_json_type(self):
+        return self.json_type_
+
+    def get_name(self):
+        return self.json_type_["id"]
+
+    def get_domain_name(self):
+        return self.json_domain_["domain"]
+
+
+class DomainData:
+    def __init__(self, json_domain):
+        self.json_domain = json_domain
+        self.types_ = []
+
+    def add_type(self, type_data):
+        self.types_.append(type_data)
+
+    def name(self):
+        return self.json_domain["domain"]
+
+    def types(self):
+        return self.types_
+
+
+class TypeMap:
+    def __init__(self, api, dependency_api):
+        self.map_ = {}
+        self.domains_ = []
+        self.domains_to_generate_ = []
+        for json_domain in api["domains"]:
+            self.add_domain(json_domain, True)
+        for json_domain in dependency_api["domains"]:
+            self.add_domain(json_domain, False)
+
+    def add_domain(self, json_domain, should_generate):
+        domain_name = json_domain["domain"]
+
+        domain_map = {}
+        self.map_[domain_name] = domain_map
+
+        domain_data = DomainData(json_domain)
+        self.domains_.append(domain_data)
+
+        if should_generate:
+            # FIXME: The order of types should not matter. The generated code should work regardless of the order of types.
+            if domain_name == "Page":
+                self.domains_to_generate_.insert(0, domain_data)
+            else:
+                self.domains_to_generate_.append(domain_data)
+
+        if "types" in json_domain:
+            for json_type in json_domain["types"]:
+                type_name = json_type["id"]
+                type_data = TypeData(json_type, json_domain, domain_data)
+                domain_map[type_name] = type_data
+                domain_data.add_type(type_data)
+
+    def domains(self):
+        return self.domains_
+
+    def domains_to_generate(self):
+        return self.domains_to_generate_
+
+    def get(self, domain_name, type_name):
+        return self.map_[domain_name][type_name]
+
+
+def resolve_param_type(json_parameter, scope_domain_name, ad_hoc_type_context):
+    if "$ref" in json_parameter:
+        json_ref = json_parameter["$ref"]
+        type_data = get_ref_data(json_ref, scope_domain_name)
+        return type_data.get_binding()
+    elif "type" in json_parameter:
+        result = TypeBindings.create_ad_hoc_type_declaration(json_parameter, scope_domain_name, ad_hoc_type_context)
+        ad_hoc_type_context.add_type(result)
+        return result
+    else:
+        raise Exception("Unknown type")
+
+
+def resolve_param_raw_type(json_parameter, scope_domain_name):
+    if "$ref" in json_parameter:
+        json_ref = json_parameter["$ref"]
+        type_data = get_ref_data(json_ref, scope_domain_name)
+        return type_data.get_raw_type()
+    elif "type" in json_parameter:
+        json_type = json_parameter["type"]
+        return RawTypes.get(json_type)
+    else:
+        raise Exception("Unknown type")
+
+
+def get_ref_data(json_ref, scope_domain_name):
+    dot_pos = json_ref.find(".")
+    if dot_pos == -1:
+        domain_name = scope_domain_name
+        type_name = json_ref
+    else:
+        domain_name = json_ref[:dot_pos]
+        type_name = json_ref[dot_pos + 1:]
+
+    return type_map.get(domain_name, type_name)
+
+
+input_file = open(input_json_filename, "r")
+json_string = input_file.read()
+json_api = json.loads(json_string)
+input_file.close()
+if not "domains" in json_api:
+    json_api = {"domains": [json_api]}
+
+dependency_api = {"domains": []}
+for dependency_json_filename in dependency_json_filenames:
+    dependency_input_file = open(dependency_json_filename, "r")
+    dependency_json_string = dependency_input_file.read()
+    dependency_json_api = json.loads(dependency_json_string)
+    dependency_input_file.close()
+    if not "domains" in dependency_json_api:
+        dependency_json_api = {"domains": [dependency_json_api]}
+    dependency_api["domains"] += dependency_json_api["domains"]
+
+
+class Templates:
+    def get_this_script_path_(absolute_path):
+        absolute_path = os.path.abspath(absolute_path)
+        components = []
+
+        def fill_recursive(path_part, depth):
+            if depth <= 0 or path_part == '/':
+                return
+            fill_recursive(os.path.dirname(path_part), depth - 1)
+            components.append(os.path.basename(path_part))
+
+        # Typical path is /Source/WebCore/inspector/CodeGeneratorInspector.py
+        # Let's take 4 components from the real path then.
+        fill_recursive(absolute_path, 4)
+
+        return "/".join(components)
+
+    file_header_ = ("// File is generated by %s\n\n" % get_this_script_path_(sys.argv[0]) +
+"""// Copyright (c) 2013 Apple Inc. All Rights Reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+""")
+
+    frontend_domain_class = string.Template(CodeGeneratorInspectorStrings.frontend_domain_class)
+    backend_dispatcher_constructor = string.Template(CodeGeneratorInspectorStrings.backend_dispatcher_constructor)
+    backend_dispatcher_dispatch_method = string.Template(CodeGeneratorInspectorStrings.backend_dispatcher_dispatch_method)
+    backend_dispatcher_dispatch_method_simple = string.Template(CodeGeneratorInspectorStrings.backend_dispatcher_dispatch_method_simple)
+    backend_method = string.Template(CodeGeneratorInspectorStrings.backend_method)
+    frontend_method = string.Template(CodeGeneratorInspectorStrings.frontend_method)
+    callback_method = string.Template(CodeGeneratorInspectorStrings.callback_method)
+    frontend_h = string.Template(file_header_ + CodeGeneratorInspectorStrings.frontend_h)
+    backend_h = string.Template(file_header_ + CodeGeneratorInspectorStrings.backend_h)
+    backend_cpp = string.Template(file_header_ + CodeGeneratorInspectorStrings.backend_cpp)
+    frontend_cpp = string.Template(file_header_ + CodeGeneratorInspectorStrings.frontend_cpp)
+    typebuilder_h = string.Template(file_header_ + CodeGeneratorInspectorStrings.typebuilder_h)
+    typebuilder_cpp = string.Template(file_header_ + CodeGeneratorInspectorStrings.typebuilder_cpp)
+    backend_js = string.Template(file_header_ + CodeGeneratorInspectorStrings.backend_js)
+    param_container_access_code = CodeGeneratorInspectorStrings.param_container_access_code
+
+
+
+
+
+type_map = TypeMap(json_api, dependency_api)
+
+
+class NeedRuntimeCastRequest:
+    def __init__(self):
+        self.ack_ = None
+
+    def acknowledge(self):
+        self.ack_ = True
+
+    def is_acknowledged(self):
+        return self.ack_
+
+
+def resolve_all_types():
+    runtime_cast_generate_requests = {}
+    for type_name in TYPES_WITH_RUNTIME_CAST_SET:
+        runtime_cast_generate_requests[type_name] = NeedRuntimeCastRequest()
+
+    class ForwardListener:
+        type_data_set = set()
+        already_declared_set = set()
+
+        @classmethod
+        def add_type_data(cls, type_data):
+            if type_data not in cls.already_declared_set:
+                cls.type_data_set.add(type_data)
+
+    class ResolveContext:
+        forward_listener = ForwardListener
+
+    for domain_data in type_map.domains():
+        for type_data in domain_data.types():
+            binding = type_data.get_binding()
+            binding.resolve_inner(ResolveContext)
+            # Do not generate forwards for this type any longer.
+            ForwardListener.already_declared_set.add(type_data)
+
+    for domain_data in type_map.domains():
+        for type_data in domain_data.types():
+            full_type_name = "%s.%s" % (type_data.get_domain_name(), type_data.get_name())
+            request = runtime_cast_generate_requests.pop(full_type_name, None)
+            binding = type_data.get_binding()
+            if request:
+                binding.request_user_runtime_cast(request)
+
+            if request and not request.is_acknowledged():
+                raise Exception("Failed to generate runtimeCast in " + full_type_name)
+
+    # FIXME: This assumes all the domains are processed at once. Change this verification
+    # to only verify runtime casts for the domains being generated.
+    # if verification:
+    #     for full_type_name in runtime_cast_generate_requests:
+    #         raise Exception("Failed to generate runtimeCast. Type " + full_type_name + " not found")
+
+    return ForwardListener
+
+
+global_forward_listener = resolve_all_types()
+
+
+def get_annotated_type_text(raw_type, annotated_type):
+    if annotated_type != raw_type:
+        return "/*%s*/ %s" % (annotated_type, raw_type)
+    else:
+        return raw_type
+
+
+def format_setter_value_expression(param_type_binding, value_ref):
+    pattern = param_type_binding.get_setter_value_expression_pattern()
+    if pattern:
+        return pattern % (INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["prefix"], value_ref)
+    else:
+        return value_ref
+
+
+class Generator:
+    frontend_domain_class_lines = []
+
+    backend_method_implementation_list = []
+    frontend_method_list = []
+    backend_js_domain_initializer_list = []
+
+    backend_handler_interface_list = []
+    backend_handler_implementation_list = []
+    backend_dispatcher_interface_list = []
+    type_builder_fragments = []
+    type_builder_forwards = []
+    validator_impl_list = []
+    type_builder_impl_list = []
+
+
+    @staticmethod
+    def go():
+        Generator.process_types(type_map)
+
+        first_cycle_guardable_list_list = [
+            Generator.backend_method_implementation_list,
+            Generator.backend_handler_interface_list,
+            Generator.backend_handler_implementation_list,
+            Generator.backend_dispatcher_interface_list]
+
+        for json_domain in json_api["domains"]:
+            domain_name = json_domain["domain"]
+            domain_name_lower = domain_name.lower()
+
+            domain_fixes = DomainNameFixes.get_fixed_data(domain_name)
+
+            domain_guard = domain_fixes.get_guard()
+
+            if domain_guard:
+                for l in first_cycle_guardable_list_list:
+                    domain_guard.generate_open(l)
+
+            frontend_method_declaration_lines = []
+
+            if ("commands" in json_domain or "events" in json_domain):
+                Generator.backend_js_domain_initializer_list.append("// %s.\n" % domain_name)
+                if not domain_fixes.skip_js_bind:
+                    Generator.backend_js_domain_initializer_list.append("InspectorBackend.register%sDispatcher = InspectorBackend.registerDomainDispatcher.bind(InspectorBackend, \"%s\");\n" % (domain_name, domain_name))
+
+            if "types" in json_domain:
+                for json_type in json_domain["types"]:
+                    if "type" in json_type and json_type["type"] == "string" and "enum" in json_type:
+                        enum_name = "%s.%s" % (domain_name, json_type["id"])
+                        Generator.process_enum(json_type, enum_name)
+                    elif json_type["type"] == "object":
+                        if "properties" in json_type:
+                            for json_property in json_type["properties"]:
+                                if "type" in json_property and json_property["type"] == "string" and "enum" in json_property:
+                                    enum_name = "%s.%s%s" % (domain_name, json_type["id"], to_title_case(json_property["name"]))
+                                    Generator.process_enum(json_property, enum_name)
+
+            if "events" in json_domain:
+                if domain_guard:
+                    domain_guard.generate_open(Generator.frontend_method_list)
+                    domain_guard.generate_open(Generator.frontend_domain_class_lines)
+
+                for json_event in json_domain["events"]:
+                    Generator.process_event(json_event, domain_name, frontend_method_declaration_lines)
+
+                Generator.frontend_domain_class_lines.append(Templates.frontend_domain_class.substitute(None,
+                    exportMacro=INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["export_macro"],
+                    domainClassName="Inspector%sFrontendDispatcher" % domain_name,
+                    frontendDomainMethodDeclarations="".join(flatten_list(frontend_method_declaration_lines))))
+
+                if domain_guard:
+                    domain_guard.generate_close(Generator.frontend_method_list)
+                    domain_guard.generate_close(Generator.frontend_domain_class_lines)
+
+            dispatcher_name = "Inspector" + Capitalizer.lower_camel_case_to_upper(domain_name) + "BackendDispatcher"
+            agent_interface_name = dispatcher_name + "Handler"
+
+            if "commands" in json_domain:
+                Generator.backend_dispatcher_interface_list.append("class %s %s final : public Inspector::InspectorSupplementalBackendDispatcher {\n" % (INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["export_macro"], dispatcher_name))
+                Generator.backend_dispatcher_interface_list.append("public:\n")
+                Generator.backend_dispatcher_interface_list.append("    static PassRefPtr<%s> create(Inspector::InspectorBackendDispatcher*, %s*);\n" % (dispatcher_name, agent_interface_name))
+                Generator.backend_dispatcher_interface_list.append("    virtual void dispatch(long callId, const String& method, PassRefPtr<Inspector::InspectorObject> message) override;\n")
+                Generator.backend_dispatcher_interface_list.append("private:\n")
+
+                Generator.backend_handler_interface_list.append("class %s %s {\n" % (INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["export_macro"], agent_interface_name))
+                Generator.backend_handler_interface_list.append("public:\n")
+
+                backend_method_count = len(Generator.backend_method_implementation_list)
+
+                dispatcher_if_chain = []
+                dispatcher_commands_list = []
+                for json_command in json_domain["commands"]:
+                    Generator.process_command(json_command, domain_name, agent_interface_name, dispatcher_name, dispatcher_if_chain, dispatcher_commands_list)
+
+                Generator.backend_handler_interface_list.append("protected:\n")
+                Generator.backend_handler_interface_list.append("    virtual ~%s();\n" % agent_interface_name)
+                Generator.backend_handler_interface_list.append("};\n\n")
+
+                Generator.backend_handler_implementation_list.append("%s::~%s() { }\n" % (agent_interface_name, agent_interface_name))
+
+                Generator.backend_dispatcher_interface_list.append("private:\n")
+                Generator.backend_dispatcher_interface_list.append("    %s(Inspector::InspectorBackendDispatcher*, %s*);\n" % (dispatcher_name, agent_interface_name))
+                Generator.backend_dispatcher_interface_list.append("    %s* m_agent;\n" % agent_interface_name)
+                Generator.backend_dispatcher_interface_list.append("};\n\n")
+
+                Generator.backend_method_implementation_list.insert(backend_method_count, Templates.backend_dispatcher_constructor.substitute(None,
+                    domainName=domain_name,
+                    dispatcherName=dispatcher_name,
+                    agentName=agent_interface_name))
+
+                if len(json_domain["commands"]) <= 5:
+                    Generator.backend_method_implementation_list.insert(backend_method_count + 1, Templates.backend_dispatcher_dispatch_method_simple.substitute(None,
+                        domainName=domain_name,
+                        dispatcherName=dispatcher_name,
+                        ifChain="\n".join(dispatcher_if_chain)))
+                else:
+                    Generator.backend_method_implementation_list.insert(backend_method_count + 1, Templates.backend_dispatcher_dispatch_method.substitute(None,
+                        domainName=domain_name,
+                        dispatcherName=dispatcher_name,
+                        dispatcherCommands="\n".join(dispatcher_commands_list)))
+
+                if domain_guard:
+                    for l in reversed(first_cycle_guardable_list_list):
+                        domain_guard.generate_close(l)
+                Generator.backend_js_domain_initializer_list.append("\n")
+
+    @staticmethod
+    def process_enum(json_enum, enum_name):
+        enum_members = []
+        for member in json_enum["enum"]:
+            enum_members.append("%s: \"%s\"" % (fix_camel_case(member), member))
+
+        Generator.backend_js_domain_initializer_list.append("InspectorBackend.registerEnum(\"%s\", {%s});\n" % (
+            enum_name, ", ".join(enum_members)))
+
+    @staticmethod
+    def process_event(json_event, domain_name, frontend_method_declaration_lines):
+        event_name = json_event["name"]
+
+        ad_hoc_type_output = []
+        frontend_method_declaration_lines.append(ad_hoc_type_output)
+        ad_hoc_type_writer = Writer(ad_hoc_type_output, "        ")
+
+        decl_parameter_list = []
+
+        json_parameters = json_event.get("parameters")
+        Generator.generate_send_method(json_parameters, event_name, domain_name, ad_hoc_type_writer,
+                                       decl_parameter_list,
+                                       Generator.EventMethodStructTemplate,
+                                       Generator.frontend_method_list, Templates.frontend_method, {"eventName": event_name})
+
+        backend_js_event_param_list = []
+        if json_parameters:
+            for parameter in json_parameters:
+                parameter_name = parameter["name"]
+                backend_js_event_param_list.append("\"%s\"" % parameter_name)
+
+        frontend_method_declaration_lines.append(
+            "    void %s(%s);\n" % (event_name, ", ".join(decl_parameter_list)))
+
+        Generator.backend_js_domain_initializer_list.append("InspectorBackend.registerEvent(\"%s.%s\", [%s]);\n" % (
+            domain_name, event_name, ", ".join(backend_js_event_param_list)))
+
+    class EventMethodStructTemplate:
+        @staticmethod
+        def append_prolog(line_list):
+            line_list.append("    RefPtr<InspectorObject> paramsObject = InspectorObject::create();\n")
+
+        @staticmethod
+        def append_epilog(line_list):
+            line_list.append("    jsonMessage->setObject(ASCIILiteral(\"params\"), paramsObject);\n")
+
+        container_name = "paramsObject"
+
+    @staticmethod
+    def process_command(json_command, domain_name, agent_interface_name, dispatcher_name, dispatcher_if_chain, dispatcher_commands_list):
+        json_command_name = json_command["name"]
+
+        ad_hoc_type_output = []
+        Generator.backend_handler_interface_list.append(ad_hoc_type_output)
+        ad_hoc_type_writer = Writer(ad_hoc_type_output, "    ")
+
+        Generator.backend_dispatcher_interface_list.append("    void %s(long callId, const Inspector::InspectorObject& message);\n" % json_command_name)
+
+        Generator.backend_handler_interface_list.append("    virtual void %s(ErrorString*" % json_command_name)
+
+        if not dispatcher_if_chain:
+            dispatcher_if_chain.append("    if (method == \"%s\")" % json_command_name)
+        else:
+            dispatcher_if_chain.append("    else if (method == \"%s\")" % json_command_name)
+        dispatcher_if_chain.append("        %s(callId, *message.get());" % json_command_name)
+        dispatcher_commands_list.append("            { \"%s\", &%s::%s }," % (json_command_name, dispatcher_name, json_command_name))
+
+        method_in_params_handling = []
+        method_dispatch_handling = []
+        method_out_params_handling = []
+        method_ending_handling = []
+        method_request_message_param_name = ""
+        agent_call_param_list = []
+        js_parameters_text = ""
+        if "parameters" in json_command:
+            json_params = json_command["parameters"]
+            method_request_message_param_name = " message"
+            method_in_params_handling.append("    RefPtr<InspectorArray> protocolErrors = InspectorArray::create();\n")
+            method_in_params_handling.append("    RefPtr<InspectorObject> paramsContainer = message.getObject(ASCIILiteral(\"params\"));\n")
+            method_in_params_handling.append("    InspectorObject* paramsContainerPtr = paramsContainer.get();\n")
+            method_in_params_handling.append("    InspectorArray* protocolErrorsPtr = protocolErrors.get();\n")
+            js_param_list = []
+
+            for json_parameter in json_params:
+                json_param_name = json_parameter["name"]
+                param_raw_type = resolve_param_raw_type(json_parameter, domain_name)
+
+                getter_name = param_raw_type.get_getter_name()
+
+                optional = json_parameter.get("optional")
+
+                non_optional_type_model = param_raw_type.get_raw_type_model()
+                if optional:
+                    type_model = non_optional_type_model.get_optional()
+                else:
+                    type_model = non_optional_type_model
+
+                if optional:
+                    code = ("    bool %s_valueFound = false;\n"
+                            "    %s in_%s = InspectorBackendDispatcher::get%s(paramsContainerPtr, ASCIILiteral(\"%s\"), &%s_valueFound, protocolErrorsPtr);\n" %
+                           (json_param_name, non_optional_type_model.get_command_return_pass_model().get_return_var_type(), json_param_name, getter_name, json_param_name, json_param_name))
+                    param = ", %s_valueFound ? &in_%s : nullptr" % (json_param_name, json_param_name)
+                    # FIXME: pass optional refptr-values as PassRefPtr
+                    formal_param_type_pattern = "const %s*"
+                else:
+                    code = ("    %s in_%s = InspectorBackendDispatcher::get%s(paramsContainerPtr, ASCIILiteral(\"%s\"), nullptr, protocolErrorsPtr);\n" %
+                            (non_optional_type_model.get_command_return_pass_model().get_return_var_type(), json_param_name, getter_name, json_param_name))
+                    param = ", in_%s" % json_param_name
+                    # FIXME: pass not-optional refptr-values as NonNullPassRefPtr
+                    if param_raw_type.is_heavy_value():
+                        formal_param_type_pattern = "const %s&"
+                    else:
+                        formal_param_type_pattern = "%s"
+
+                method_in_params_handling.append(code)
+                agent_call_param_list.append(param)
+                Generator.backend_handler_interface_list.append(", %s in_%s" % (formal_param_type_pattern % non_optional_type_model.get_command_return_pass_model().get_return_var_type(), json_param_name))
+
+                js_bind_type = param_raw_type.get_js_bind_type()
+                js_param_text = "{\"name\": \"%s\", \"type\": \"%s\", \"optional\": %s}" % (
+                    json_param_name,
+                    js_bind_type,
+                    ("true" if ("optional" in json_parameter and json_parameter["optional"]) else "false"))
+
+                js_param_list.append(js_param_text)
+
+            method_in_params_handling.append("    if (protocolErrors->length()) {\n")
+            method_in_params_handling.append("        String errorMessage = String::format(\"Some arguments of method '%%s' can't be processed\", \"%s.%s\");\n" % (domain_name, json_command_name))
+            method_in_params_handling.append("        m_backendDispatcher->reportProtocolError(&callId, InspectorBackendDispatcher::InvalidParams, errorMessage, protocolErrors.release());\n")
+            method_in_params_handling.append("        return;\n")
+            method_in_params_handling.append("    }\n")
+            method_in_params_handling.append("\n")
+
+            js_parameters_text = ", ".join(js_param_list)
+
+        method_dispatch_handling.append("    ErrorString error;\n")
+        method_dispatch_handling.append("    RefPtr<InspectorObject> result = InspectorObject::create();\n")
+
+        if json_command.get("async") == True:
+            callback_name = Capitalizer.lower_camel_case_to_upper(json_command_name) + "Callback"
+
+            callback_output = []
+            callback_writer = Writer(callback_output, ad_hoc_type_writer.get_indent())
+
+            decl_parameter_list = []
+            Generator.generate_send_method(json_command.get("returns"), json_command_name, domain_name, ad_hoc_type_writer,
+                                           decl_parameter_list,
+                                           Generator.CallbackMethodStructTemplate,
+                                           Generator.backend_method_implementation_list, Templates.callback_method,
+                                           {"callbackName": callback_name, "handlerName": agent_interface_name})
+
+            callback_writer.newline("class " + callback_name + " : public Inspector::InspectorBackendDispatcher::CallbackBase {\n")
+            callback_writer.newline("public:\n")
+            callback_writer.newline("    " + callback_name + "(PassRefPtr<Inspector::InspectorBackendDispatcher>, int id);\n")
+            callback_writer.newline("    void sendSuccess(" + ", ".join(decl_parameter_list) + ");\n")
+            callback_writer.newline("};\n")
+
+            ad_hoc_type_output.append(callback_output)
+
+            method_dispatch_handling.append("    RefPtr<%s::%s> callback = adoptRef(new %s::%s(m_backendDispatcher,callId));\n" % (agent_interface_name, callback_name, agent_interface_name, callback_name))
+            method_ending_handling.append("    if (error.length()) {\n")
+            method_ending_handling.append("        callback->disable();\n")
+            method_ending_handling.append("        m_backendDispatcher->reportProtocolError(&callId, Inspector::InspectorBackendDispatcher::ServerError, error);\n")
+            method_ending_handling.append("        return;\n")
+            method_ending_handling.append("    }")
+
+            agent_call_param_list.append(", callback")
+            Generator.backend_handler_interface_list.append(", PassRefPtr<%s> callback" % callback_name)
+        elif "returns" in json_command:
+            has_multiple_returns = len(json_command["returns"]) > 1
+            if has_multiple_returns:
+                method_out_params_handling.append("    if (!error.length()) {\n")
+            else:
+                method_out_params_handling.append("    if (!error.length())\n")
+
+            for json_return in json_command["returns"]:
+
+                json_return_name = json_return["name"]
+
+                optional = bool(json_return.get("optional"))
+
+                return_type_binding = Generator.resolve_type_and_generate_ad_hoc(json_return, json_command_name, domain_name, ad_hoc_type_writer, agent_interface_name + "::")
+
+                raw_type = return_type_binding.reduce_to_raw_type()
+                setter_type = raw_type.get_setter_name()
+                initializer = raw_type.get_c_initializer()
+
+                type_model = return_type_binding.get_type_model()
+                if optional:
+                    type_model = type_model.get_optional()
+
+                code = "    %s out_%s;\n" % (type_model.get_command_return_pass_model().get_return_var_type(), json_return_name)
+                param = ", %sout_%s" % (type_model.get_command_return_pass_model().get_output_argument_prefix(), json_return_name)
+                var_name = "out_%s" % json_return_name
+                setter_argument = type_model.get_command_return_pass_model().get_output_to_raw_expression() % var_name
+                if return_type_binding.get_setter_value_expression_pattern():
+                    setter_argument = return_type_binding.get_setter_value_expression_pattern() % (INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["prefix"], setter_argument)
+
+                cook = "        result->set%s(ASCIILiteral(\"%s\"), %s);\n" % (setter_type, json_return_name, setter_argument)
+
+                set_condition_pattern = type_model.get_command_return_pass_model().get_set_return_condition()
+                if set_condition_pattern:
+                    cook = ("        if (%s)\n    " % (set_condition_pattern % var_name)) + cook
+                annotated_type = type_model.get_command_return_pass_model().get_output_parameter_type()
+
+                param_name = "out_%s" % json_return_name
+                if optional:
+                    param_name = "opt_" + param_name
+
+                Generator.backend_handler_interface_list.append(", %s %s" % (annotated_type, param_name))
+                method_out_params_handling.append(cook)
+                method_dispatch_handling.append(code)
+
+                agent_call_param_list.append(param)
+
+            if has_multiple_returns:
+                method_out_params_handling.append("    }\n")
+            method_out_params_handling.append("\n")
+
+        method_dispatch_handling.append("    m_agent->%s(&error%s);\n" % (json_command_name, "".join(agent_call_param_list)))
+        method_dispatch_handling.append("\n")
+
+        if not method_ending_handling:
+            method_ending_handling.append("    m_backendDispatcher->sendResponse(callId, result.release(), error);")
+
+        backend_js_reply_param_list = []
+        if "returns" in json_command:
+            for json_return in json_command["returns"]:
+                json_return_name = json_return["name"]
+                backend_js_reply_param_list.append("\"%s\"" % json_return_name)
+
+        js_reply_list = "[%s]" % ", ".join(backend_js_reply_param_list)
+
+        Generator.backend_method_implementation_list.append(Templates.backend_method.substitute(None,
+            dispatcherName=dispatcher_name,
+            methodName=json_command_name,
+            requestMessageObject=method_request_message_param_name,
+            methodInParametersHandling="".join(method_in_params_handling),
+            methodDispatchHandling="".join(method_dispatch_handling),
+            methodOutParametersHandling="".join(method_out_params_handling),
+            methodEndingHandling="".join(method_ending_handling)))
+
+        Generator.backend_js_domain_initializer_list.append("InspectorBackend.registerCommand(\"%s.%s\", [%s], %s);\n" % (domain_name, json_command_name, js_parameters_text, js_reply_list))
+        Generator.backend_handler_interface_list.append(") = 0;\n")
+
+    class CallbackMethodStructTemplate:
+        @staticmethod
+        def append_prolog(line_list):
+            pass
+
+        @staticmethod
+        def append_epilog(line_list):
+            pass
+
+        container_name = "jsonMessage"
+
+    # Generates common code for event sending and callback response data sending.
+    @staticmethod
+    def generate_send_method(parameters, event_name, domain_name, ad_hoc_type_writer, decl_parameter_list,
+                             method_struct_template,
+                             generator_method_list, method_template, template_params):
+        method_line_list = []
+        if parameters:
+            method_struct_template.append_prolog(method_line_list)
+            for json_parameter in parameters:
+                parameter_name = json_parameter["name"]
+
+                param_type_binding = Generator.resolve_type_and_generate_ad_hoc(json_parameter, event_name, domain_name, ad_hoc_type_writer, "")
+
+                raw_type = param_type_binding.reduce_to_raw_type()
+                raw_type_binding = RawTypeBinding(raw_type)
+
+                optional = bool(json_parameter.get("optional"))
+
+                setter_type = raw_type.get_setter_name()
+
+                type_model = param_type_binding.get_type_model()
+                raw_type_model = raw_type_binding.get_type_model()
+                if optional:
+                    type_model = type_model.get_optional()
+                    raw_type_model = raw_type_model.get_optional()
+
+                annotated_type = type_model.get_input_param_type_text()
+                mode_type_binding = param_type_binding
+
+                decl_parameter_list.append("%s %s" % (annotated_type, parameter_name))
+
+                setter_argument = raw_type_model.get_event_setter_expression_pattern() % parameter_name
+                if mode_type_binding.get_setter_value_expression_pattern():
+                    setter_argument = mode_type_binding.get_setter_value_expression_pattern() % (INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["prefix"], setter_argument)
+
+                setter_code = "    %s->set%s(ASCIILiteral(\"%s\"), %s);\n" % (method_struct_template.container_name, setter_type, parameter_name, setter_argument)
+                if optional:
+                    setter_code = ("    if (%s)\n    " % parameter_name) + setter_code
+                method_line_list.append(setter_code)
+
+            method_struct_template.append_epilog(method_line_list)
+
+        generator_method_list.append(method_template.substitute(None,
+            domainName=domain_name,
+            parameters=", ".join(decl_parameter_list),
+            code="".join(method_line_list), **template_params))
+
+    @staticmethod
+    def resolve_type_and_generate_ad_hoc(json_param, method_name, domain_name, ad_hoc_type_writer, container_relative_name_prefix_param):
+        param_name = json_param["name"]
+        ad_hoc_type_list = []
+
+        class AdHocTypeContext:
+            container_full_name_prefix = "<not yet defined>"
+            container_relative_name_prefix = container_relative_name_prefix_param
+
+            @staticmethod
+            def get_type_name_fix():
+                class NameFix:
+                    class_name = Capitalizer.lower_camel_case_to_upper(param_name)
+
+                    @staticmethod
+                    def output_comment(writer):
+                        writer.newline("// Named after parameter '%s' while generating command/event %s.\n" % (param_name, method_name))
+
+                return NameFix
+
+            @staticmethod
+            def add_type(binding):
+                ad_hoc_type_list.append(binding)
+
+        type_binding = resolve_param_type(json_param, domain_name, AdHocTypeContext)
+
+        class InterfaceForwardListener:
+            @staticmethod
+            def add_type_data(type_data):
+                pass
+
+        class InterfaceResolveContext:
+            forward_listener = InterfaceForwardListener
+
+        for type in ad_hoc_type_list:
+            type.resolve_inner(InterfaceResolveContext)
+
+        class InterfaceGenerateContext:
+            validator_writer = "not supported in InterfaceGenerateContext"
+            cpp_writer = validator_writer
+
+        for type in ad_hoc_type_list:
+            generator = type.get_code_generator()
+            if generator:
+                generator.generate_type_builder(ad_hoc_type_writer, InterfaceGenerateContext)
+
+        return type_binding
+
+    @staticmethod
+    def process_types(type_map):
+        output = Generator.type_builder_fragments
+
+        class GenerateContext:
+            validator_writer = Writer(Generator.validator_impl_list, "")
+            cpp_writer = Writer(Generator.type_builder_impl_list, "")
+
+        def generate_all_domains_code(out, type_data_callback):
+            writer = Writer(out, "")
+            for domain_data in type_map.domains_to_generate():
+                domain_fixes = DomainNameFixes.get_fixed_data(domain_data.name())
+                domain_guard = domain_fixes.get_guard()
+
+                namespace_declared = []
+
+                def namespace_lazy_generator():
+                    if not namespace_declared:
+                        if domain_guard:
+                            domain_guard.generate_open(out)
+                        writer.newline("namespace ")
+                        writer.append(domain_data.name())
+                        writer.append(" {\n")
+                        # What is a better way to change value from outer scope?
+                        namespace_declared.append(True)
+                    return writer
+
+                for type_data in domain_data.types():
+                    type_data_callback(type_data, namespace_lazy_generator)
+
+                if namespace_declared:
+                    writer.append("} // ")
+                    writer.append(domain_data.name())
+                    writer.append("\n\n")
+
+                    if domain_guard:
+                        domain_guard.generate_close(out)
+
+        def create_type_builder_caller(generate_pass_id):
+            def call_type_builder(type_data, writer_getter):
+                code_generator = type_data.get_binding().get_code_generator()
+                if code_generator and generate_pass_id == code_generator.get_generate_pass_id():
+                    writer = writer_getter()
+
+                    code_generator.generate_type_builder(writer, GenerateContext)
+            return call_type_builder
+
+        generate_all_domains_code(output, create_type_builder_caller(TypeBuilderPass.MAIN))
+
+        Generator.type_builder_forwards.append("// Forward declarations.\n")
+
+        def generate_forward_callback(type_data, writer_getter):
+            if type_data in global_forward_listener.type_data_set:
+                binding = type_data.get_binding()
+                binding.get_code_generator().generate_forward_declaration(writer_getter())
+        generate_all_domains_code(Generator.type_builder_forwards, generate_forward_callback)
+
+        Generator.type_builder_forwards.append("// End of forward declarations.\n\n")
+
+        Generator.type_builder_forwards.append("// Typedefs.\n")
+
+        generate_all_domains_code(Generator.type_builder_forwards, create_type_builder_caller(TypeBuilderPass.TYPEDEF))
+
+        Generator.type_builder_forwards.append("// End of typedefs.\n\n")
+
+
+def flatten_list(input):
+    res = []
+
+    def fill_recursive(l):
+        for item in l:
+            if isinstance(item, list):
+                fill_recursive(item)
+            else:
+                res.append(item)
+    fill_recursive(input)
+    return res
+
+
+# A writer that only updates file if it actually changed to better support incremental build.
+class SmartOutput:
+    def __init__(self, file_name):
+        self.file_name_ = file_name
+        self.output_ = ""
+
+    def write(self, text):
+        self.output_ += text
+
+    def close(self):
+        text_changed = True
+        self.output_ = self.output_.rstrip() + "\n"
+
+        try:
+            read_file = open(self.file_name_, "r")
+            old_text = read_file.read()
+            read_file.close()
+            text_changed = old_text != self.output_
+        except:
+            # Ignore, just overwrite by default
+            pass
+
+        if text_changed or write_always:
+            out_file = open(self.file_name_, "w")
+            out_file.write(self.output_)
+            out_file.close()
+
+
+Generator.go()
+
+output_file_name_prefix = INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["prefix"]
+
+backend_h_file = SmartOutput(output_header_dirname + ("/Inspector%sBackendDispatchers.h" % output_file_name_prefix))
+backend_cpp_file = SmartOutput(output_cpp_dirname + ("/Inspector%sBackendDispatchers.cpp" % output_file_name_prefix))
+
+frontend_h_file = SmartOutput(output_header_dirname + ("/Inspector%sFrontendDispatchers.h" % output_file_name_prefix))
+frontend_cpp_file = SmartOutput(output_cpp_dirname + ("/Inspector%sFrontendDispatchers.cpp" % output_file_name_prefix))
+
+typebuilder_h_file = SmartOutput(output_header_dirname + ("/Inspector%sTypeBuilders.h" % output_file_name_prefix))
+typebuilder_cpp_file = SmartOutput(output_cpp_dirname + ("/Inspector%sTypeBuilders.cpp" % output_file_name_prefix))
+
+backend_js_file = SmartOutput(output_js_dirname + ("/Inspector%sBackendCommands.js" % output_file_name_prefix))
+
+
+backend_h_file.write(Templates.backend_h.substitute(None,
+    outputFileNamePrefix=output_file_name_prefix,
+    handlerInterfaces="".join(flatten_list(Generator.backend_handler_interface_list)),
+    dispatcherInterfaces="".join(flatten_list(Generator.backend_dispatcher_interface_list))))
+
+backend_cpp_file.write(Templates.backend_cpp.substitute(None,
+    outputFileNamePrefix=output_file_name_prefix,
+    handlerImplementations="".join(flatten_list(Generator.backend_handler_implementation_list)),
+    methods="\n".join(Generator.backend_method_implementation_list)))
+
+frontend_h_file.write(Templates.frontend_h.substitute(None,
+    outputFileNamePrefix=output_file_name_prefix,
+    domainClassList="".join(Generator.frontend_domain_class_lines)))
+
+frontend_cpp_file.write(Templates.frontend_cpp.substitute(None,
+    outputFileNamePrefix=output_file_name_prefix,
+    methods="\n".join(Generator.frontend_method_list)))
+
+typebuilder_h_file.write(Templates.typebuilder_h.substitute(None,
+    outputFileNamePrefix=output_file_name_prefix,
+    typeBuilderDependencies=INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["typebuilder_dependency"],
+    exportMacro=INSPECTOR_TYPES_GENERATOR_CONFIG_MAP[output_type]["export_macro"],
+    typeBuilders="".join(flatten_list(Generator.type_builder_fragments)),
+    forwards="".join(Generator.type_builder_forwards),
+    validatorIfdefName=VALIDATOR_IFDEF_NAME))
+
+typebuilder_cpp_file.write(Templates.typebuilder_cpp.substitute(None,
+    outputFileNamePrefix=output_file_name_prefix,
+    enumConstantValues=EnumConstants.get_enum_constant_code(),
+    implCode="".join(flatten_list(Generator.type_builder_impl_list)),
+    validatorCode="".join(flatten_list(Generator.validator_impl_list)),
+    validatorIfdefName=VALIDATOR_IFDEF_NAME))
+
+backend_js_file.write(Templates.backend_js.substitute(None,
+    domainInitializers="".join(Generator.backend_js_domain_initializer_list)))
+
+backend_h_file.close()
+backend_cpp_file.close()
+
+frontend_h_file.close()
+frontend_cpp_file.close()
+
+typebuilder_h_file.close()
+typebuilder_cpp_file.close()
+
+backend_js_file.close()