Dartium Roll 38 roll

bindings/scripts/v8_utilities.py

 # Copyright (C) 2013 Google 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
@@ skipping 10 matching lines @@
 # 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.
 
 """Functions shared by various parts of the code generator.
 
-Extends IdlType and IdlUnion type with |enum_validation_expression| property.
+Extends IdlTypeBase type with |enum_validation_expression| property.
 
 Design doc: http://www.chromium.org/developers/design-documents/idl-compiler
 """
 
 import re
 
-from idl_types import IdlType, IdlUnionType
+from idl_types import IdlTypeBase
 import idl_types
 from v8_globals import includes
 import v8_types
 
 ACRONYMS = [
     'CSSOM',  # must come *before* CSS to match full acronym
     'CSS',
     'HTML',
     'IME',
     'JS',
     'SVG',
     'URL',
     'WOFF',
     'XML',
     'XSLT',
 ]
 
 
 ################################################################################
 # Extended attribute parsing
 ################################################################################
 
 def extended_attribute_value_contains(extended_attribute_value, value):
     return (extended_attribute_value and
-            value in re.split('[|&]', extended_attribute_value))
+            value in re.split('[|,]', extended_attribute_value))
 
 
 def has_extended_attribute(definition_or_member, extended_attribute_list):
     return any(extended_attribute in definition_or_member.extended_attributes
                for extended_attribute in extended_attribute_list)
 
 
 def has_extended_attribute_value(definition_or_member, name, value):
     extended_attributes = definition_or_member.extended_attributes
     return (name in extended_attributes and
             extended_attribute_value_contains(extended_attributes[name], value))
 
 
+def sorted_extended_attribute_set(definition_or_member, name):
+    extended_attributes = definition_or_member.extended_attributes
+    if name not in extended_attributes:
+        return []
+
+    attribute_values = re.split('[|,]', extended_attributes[name])
+    return sorted(attribute_values)
+
+
 ################################################################################
 # String handling
 ################################################################################
 
 def capitalize(name):
     """Capitalize first letter or initial acronym (used in setter names)."""
     for acronym in ACRONYMS:
         if name.startswith(acronym.lower()):
             return name.replace(acronym.lower(), acronym)
     return name[0].upper() + name[1:]
@@ skipping 19 matching lines @@
 ################################################################################
 # C++
 ################################################################################
 
 def enum_validation_expression(idl_type):
     # FIXME: Add IdlEnumType, move property to derived type, and remove this check
     if not idl_type.is_enum:
         return None
     return ' || '.join(['string == "%s"' % enum_value
                         for enum_value in idl_type.enum_values])
-IdlType.enum_validation_expression = property(enum_validation_expression)
+IdlTypeBase.enum_validation_expression = property(enum_validation_expression)
 
 
 def scoped_name(interface, definition, base_name):
+    if 'ImplementedInPrivateScript' in definition.extended_attributes:
+        return '%s::PrivateScript::%s' % (v8_class_name(interface), base_name)
     # partial interfaces are implemented as separate classes, with their members
     # implemented as static member functions
     partial_interface_implemented_as = definition.extended_attributes.get('PartialInterfaceImplementedAs')
     if partial_interface_implemented_as:
         return '%s::%s' % (partial_interface_implemented_as, base_name)
     if (definition.is_static or
         definition.name in ('Constructor', 'NamedConstructor')):
         return '%s::%s' % (cpp_name(interface), base_name)
     return 'impl->%s' % base_name
 
@@ skipping 12 matching lines @@
 
     access_type can be 'Getter' or 'Setter' if only checking getting or setting.
     """
     extended_attributes = member.extended_attributes
     if 'LogActivity' not in extended_attributes:
         return set()
     log_activity = extended_attributes['LogActivity']
     if log_activity and not log_activity.startswith(access_type):
         return set()
 
-    includes.add('bindings/v8/V8DOMActivityLogger.h')
+    includes.add('bindings/core/v8/V8DOMActivityLogger.h')
     if 'LogAllWorlds' in extended_attributes:
         return set(['', 'ForMainWorld'])
     return set([''])  # At minimum, include isolated worlds.
 
 
 # [ActivityLogging]
 def activity_logging_world_check(member):
     """Returns if an isolated world check is required when generating activity
     logging code.
 
@@ skipping 31 matching lines @@
 
 def call_with_arguments(call_with_values):
     if not call_with_values:
         return []
     return [CALL_WITH_ARGUMENTS[value]
             for value in CALL_WITH_VALUES
             if extended_attribute_value_contains(call_with_values, value)]
 
 
 # [Conditional]
+DELIMITER_TO_OPERATOR = {
+    '|': '||',
+    ',': '&&',
+}
+
+
 def conditional_string(definition_or_member):
     extended_attributes = definition_or_member.extended_attributes
     if 'Conditional' not in extended_attributes:
         return None
     conditional = extended_attributes['Conditional']
-    for operator in '&|':
-        if operator in conditional:
-            conditions = conditional.split(operator)
-            operator_separator = ' %s%s ' % (operator, operator)
+    for delimiter in ',|':
+        if delimiter in conditional:
+            conditions = conditional.split(delimiter)
+            operator_separator = ' %s ' % DELIMITER_TO_OPERATOR[delimiter]
             return operator_separator.join('ENABLE(%s)' % expression for expression in sorted(conditions))
     return 'ENABLE(%s)' % conditional
 
 
 # [DeprecateAs]
 def deprecate_as(member):
     extended_attributes = member.extended_attributes
     if 'DeprecateAs' not in extended_attributes:
         return None
     includes.add('core/frame/UseCounter.h')
     return extended_attributes['DeprecateAs']
 
 
+# [Exposed]
+EXPOSED_EXECUTION_CONTEXT_METHOD = {
+    'DedicatedWorker': 'isDedicatedWorkerGlobalScope',
+    'ServiceWorker': 'isServiceWorkerGlobalScope',
+    'SharedWorker': 'isSharedWorkerGlobalScope',
+    'Window': 'isDocument',
+    'Worker': 'isWorkerGlobalScope',
+}
+
+
+def exposed(definition_or_member, interface):
+    exposure_set = sorted_extended_attribute_set(definition_or_member, 'Exposed')
+    if not exposure_set:
+        return None
+
+    interface_exposure_set = expanded_exposure_set_for_interface(interface)
+
+    # Methods must not be exposed to a broader scope than their interface.
+    if not set(exposure_set).issubset(interface_exposure_set):
+        raise ValueError('Interface members\' exposure sets must be a subset of the interface\'s.')
+
+    exposure_checks = []
+    for environment in exposure_set:
+        # Methods must be exposed on one of the scopes known to Blink.
+        if environment not in EXPOSED_EXECUTION_CONTEXT_METHOD:
+            raise ValueError('Values for the [Exposed] annotation must reflect to a valid exposure scope.')
+
+        exposure_checks.append('context->%s()' % EXPOSED_EXECUTION_CONTEXT_METHOD[environment])
+
+    return ' || '.join(exposure_checks)
+
+
+def expanded_exposure_set_for_interface(interface):
+    exposure_set = sorted_extended_attribute_set(interface, 'Exposed')
+
+    # "Worker" is an aggregation for the different kinds of workers.
+    if 'Worker' in exposure_set:
+        exposure_set.extend(('DedicatedWorker', 'SharedWorker', 'ServiceWorker'))
+
+    return sorted(set(exposure_set))
+
+
 # [GarbageCollected], [WillBeGarbageCollected]
 def gc_type(definition):
     extended_attributes = definition.extended_attributes
     if 'GarbageCollected' in extended_attributes:
         return 'GarbageCollectedObject'
     elif 'WillBeGarbageCollected' in extended_attributes:
         return 'WillBeGarbageCollectedObject'
     return 'RefCountedObject'
 
 
@@ skipping 37 matching lines @@
     feature_name = extended_attributes['RuntimeEnabled']
     return 'RuntimeEnabledFeatures::%sEnabled' % uncapitalize(feature_name)
 
 
 ################################################################################
 # Dart Specific extended attributes
 ################################################################################
 def dart_custom_method(extended_attributes):
     return ('DartCustom' in extended_attributes and
             extended_attribute_value_contains(extended_attributes['DartCustom'], 'New'))