IDL compiler: Support WithOwnerMixin.owner_mixin

Bug: 839389
Change-Id: I1837515ed902100be67c0dc74440f50d25002420
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1942594
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#720416}

third_party/blink/renderer/bindings/scripts/web_idl/attribute.py

@@ -10,17 +10,19 @@ from .composition_parts import WithExposure
 from .composition_parts import WithExtendedAttributes
 from .composition_parts import WithIdentifier
 from .composition_parts import WithOwner
+from .composition_parts import WithOwnerMixin
 from .exposure import Exposure
 from .idl_type import IdlType
 from .make_copy import make_copy
 
 
 class Attribute(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
-                WithExposure, WithOwner, WithComponent, WithDebugInfo):
+                WithExposure, WithOwner, WithOwnerMixin, WithComponent,
+                WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-attributes"""
 
     class IR(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
-             WithExposure, WithComponent, WithDebugInfo):
+             WithExposure, WithOwnerMixin, WithComponent, WithDebugInfo):
         def __init__(self,
                      identifier,
                      idl_type,
@@ -39,6 +41,7 @@ class Attribute(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
             WithExtendedAttributes.__init__(self, extended_attributes)
             WithCodeGeneratorInfo.__init__(self)
             WithExposure.__init__(self)
+            WithOwnerMixin.__init__(self)
             WithComponent.__init__(self, component)
             WithDebugInfo.__init__(self, debug_info)
 
@@ -56,6 +59,7 @@ class Attribute(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
         WithCodeGeneratorInfo.__init__(self, ir, readonly=True)
         WithExposure.__init__(self, ir, readonly=True)
         WithOwner.__init__(self, owner)
+        WithOwnerMixin.__init__(self, ir)
         WithComponent.__init__(self, ir, readonly=True)
         WithDebugInfo.__init__(self, ir)
 

third_party/blink/renderer/bindings/scripts/web_idl/composition_parts.py

@@ -218,3 +218,31 @@ class WithOwner(object):
     @property
     def owner(self):
         return self._owner
+
+
+class WithOwnerMixin(object):
+    """Implements |owner_mixin| as a readonly attribute."""
+
+    def __init__(self, owner_mixin=None):
+        if isinstance(owner_mixin, WithOwnerMixin):
+            owner_mixin = owner_mixin._owner_mixin
+        # In Python2, we need to avoid circular imports.
+        from .reference import RefById
+        assert owner_mixin is None or isinstance(owner_mixin, RefById)
+
+        self._owner_mixin = owner_mixin
+
+    @property
+    def owner_mixin(self):
+        """
+        Returns the interface mixin object where this construct was originally
+        defined.
+        """
+        return self._owner_mixin.target_object if self._owner_mixin else None
+
+    def set_owner_mixin(self, mixin):
+        # In Python2, we need to avoid circular imports.
+        from .reference import RefById
+        assert isinstance(mixin, RefById)
+        assert self._owner_mixin is None
+        self._owner_mixin = mixin

third_party/blink/renderer/bindings/scripts/web_idl/constant.py

@@ -10,6 +10,7 @@ from .composition_parts import WithExposure
 from .composition_parts import WithExtendedAttributes
 from .composition_parts import WithIdentifier
 from .composition_parts import WithOwner
+from .composition_parts import WithOwnerMixin
 from .exposure import Exposure
 from .idl_type import IdlType
 from .literal_constant import LiteralConstant
@@ -17,11 +18,12 @@ from .make_copy import make_copy
 
 
 class Constant(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
-               WithExposure, WithOwner, WithComponent, WithDebugInfo):
+               WithExposure, WithOwner, WithOwnerMixin, WithComponent,
+               WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-constants"""
 
     class IR(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
-             WithExposure, WithComponent, WithDebugInfo):
+             WithExposure, WithOwnerMixin, WithComponent, WithDebugInfo):
         def __init__(self,
                      identifier,
                      idl_type,
@@ -36,6 +38,7 @@ class Constant(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
             WithExtendedAttributes.__init__(self, extended_attributes)
             WithCodeGeneratorInfo.__init__(self)
             WithExposure.__init__(self)
+            WithOwnerMixin.__init__(self)
             WithComponent.__init__(self, component)
             WithDebugInfo.__init__(self, debug_info)
 
@@ -51,6 +54,7 @@ class Constant(WithIdentifier, WithExtendedAttributes, WithCodeGeneratorInfo,
         WithCodeGeneratorInfo.__init__(self, ir, readonly=True)
         WithExposure.__init__(self, ir, readonly=True)
         WithOwner.__init__(self, owner)
+        WithOwnerMixin.__init__(self, ir)
         WithComponent.__init__(self, ir, readonly=True)
         WithDebugInfo.__init__(self, ir)
 

third_party/blink/renderer/bindings/scripts/web_idl/constructor.py

@@ -10,6 +10,7 @@ from .composition_parts import WithDebugInfo
 from .composition_parts import WithExposure
 from .composition_parts import WithExtendedAttributes
 from .composition_parts import WithOwner
+from .composition_parts import WithOwnerMixin
 from .exposure import Exposure
 from .function_like import FunctionLike
 from .function_like import OverloadGroup
@@ -17,11 +18,12 @@ from .make_copy import make_copy
 
 
 class Constructor(FunctionLike, WithExtendedAttributes, WithCodeGeneratorInfo,
-                  WithExposure, WithOwner, WithComponent, WithDebugInfo):
+                  WithExposure, WithOwner, WithOwnerMixin, WithComponent,
+                  WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-constructors"""
 
     class IR(FunctionLike.IR, WithExtendedAttributes, WithCodeGeneratorInfo,
-             WithExposure, WithComponent, WithDebugInfo):
+             WithExposure, WithOwnerMixin, WithComponent, WithDebugInfo):
         def __init__(self,
                      arguments,
                      return_type,
@@ -36,6 +38,7 @@ class Constructor(FunctionLike, WithExtendedAttributes, WithCodeGeneratorInfo,
             WithExtendedAttributes.__init__(self, extended_attributes)
             WithCodeGeneratorInfo.__init__(self)
             WithExposure.__init__(self)
+            WithOwnerMixin.__init__(self)
             WithComponent.__init__(self, component)
             WithDebugInfo.__init__(self, debug_info)
 
@@ -47,6 +50,7 @@ class Constructor(FunctionLike, WithExtendedAttributes, WithCodeGeneratorInfo,
         WithCodeGeneratorInfo.__init__(self, ir, readonly=True)
         WithExposure.__init__(self, ir, readonly=True)
         WithOwner.__init__(self, owner)
+        WithOwnerMixin.__init__(self, ir)
         WithComponent.__init__(self, ir, readonly=True)
         WithDebugInfo.__init__(self, ir)
 

third_party/blink/renderer/bindings/scripts/web_idl/idl_compiler.py

@@ -81,6 +81,7 @@ class IdlCompiler(object):
         self._merge_partial_interface_likes()
         self._merge_partial_dictionaries()
         # Merge mixins.
+        self._set_owner_mixin_of_mixin_members()
         self._merge_interface_mixins()
 
         # Process inheritances.
@@ -221,6 +222,19 @@ class IdlCompiler(object):
                 new_dictionary.own_members.extend(
                     make_copy(partial_dictionary.own_members))
 
+    def _set_owner_mixin_of_mixin_members(self):
+        mixins = self._ir_map.irs_of_kind(IRMap.IR.Kind.INTERFACE_MIXIN)
+
+        self._ir_map.move_to_new_phase()
+
+        for old_ir in mixins:
+            new_ir = make_copy(old_ir)
+            self._ir_map.add(new_ir)
+            ref_to_mixin = self._ref_to_idl_def_factory.create(
+                new_ir.identifier)
+            for member in new_ir.iter_all_members():
+                member.set_owner_mixin(ref_to_mixin)
+
     def _merge_interface_mixins(self):
         interfaces = self._ir_map.find_by_kind(IRMap.IR.Kind.INTERFACE)
         mixins = self._ir_map.find_by_kind(IRMap.IR.Kind.INTERFACE_MIXIN)

third_party/blink/renderer/bindings/scripts/web_idl/operation.py

@@ -10,6 +10,7 @@ from .composition_parts import WithDebugInfo
 from .composition_parts import WithExposure
 from .composition_parts import WithExtendedAttributes
 from .composition_parts import WithOwner
+from .composition_parts import WithOwnerMixin
 from .exposure import Exposure
 from .function_like import FunctionLike
 from .function_like import OverloadGroup
@@ -18,11 +19,12 @@ from .make_copy import make_copy
 
 
 class Operation(FunctionLike, WithExtendedAttributes, WithCodeGeneratorInfo,
-                WithExposure, WithOwner, WithComponent, WithDebugInfo):
+                WithExposure, WithOwner, WithOwnerMixin, WithComponent,
+                WithDebugInfo):
     """https://heycam.github.io/webidl/#idl-operations"""
 
     class IR(FunctionLike.IR, WithExtendedAttributes, WithCodeGeneratorInfo,
-             WithExposure, WithComponent, WithDebugInfo):
+             WithExposure, WithOwnerMixin, WithComponent, WithDebugInfo):
         def __init__(self,
                      identifier,
                      arguments,
@@ -40,6 +42,7 @@ class Operation(FunctionLike, WithExtendedAttributes, WithCodeGeneratorInfo,
             WithExtendedAttributes.__init__(self, extended_attributes)
             WithCodeGeneratorInfo.__init__(self)
             WithExposure.__init__(self)
+            WithOwnerMixin.__init__(self)
             WithComponent.__init__(self, component)
             WithDebugInfo.__init__(self, debug_info)
 
@@ -53,6 +56,7 @@ class Operation(FunctionLike, WithExtendedAttributes, WithCodeGeneratorInfo,
         WithCodeGeneratorInfo.__init__(self, ir, readonly=True)
         WithExposure.__init__(self, ir, readonly=True)
         WithOwner.__init__(self, owner)
+        WithOwnerMixin.__init__(self, ir)
         WithComponent.__init__(self, ir, readonly=True)
         WithDebugInfo.__init__(self, ir)