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| 1 # Copyright (C) 2013 Google Inc. All rights reserved. | 1 # Copyright (C) 2013 Google Inc. All rights reserved. |
| 2 # | 2 # |
| 3 # Redistribution and use in source and binary forms, with or without | 3 # Redistribution and use in source and binary forms, with or without |
| 4 # modification, are permitted provided that the following conditions are | 4 # modification, are permitted provided that the following conditions are |
| 5 # met: | 5 # met: |
| 6 # | 6 # |
| 7 # * Redistributions of source code must retain the above copyright | 7 # * Redistributions of source code must retain the above copyright |
| 8 # notice, this list of conditions and the following disclaimer. | 8 # notice, this list of conditions and the following disclaimer. |
| 9 # * Redistributions in binary form must reproduce the above | 9 # * Redistributions in binary form must reproduce the above |
| 10 # copyright notice, this list of conditions and the following disclaimer | 10 # copyright notice, this list of conditions and the following disclaimer |
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| 55 IdlException < IdlInterface | 55 IdlException < IdlInterface |
| 56 (same contents as IdlInterface) | 56 (same contents as IdlInterface) |
| 57 | 57 |
| 58 TypedObject :: mixin for typedef resolution | 58 TypedObject :: mixin for typedef resolution |
| 59 | 59 |
| 60 Design doc: http://www.chromium.org/developers/design-documents/idl-compiler | 60 Design doc: http://www.chromium.org/developers/design-documents/idl-compiler |
| 61 """ | 61 """ |
| 62 | 62 |
| 63 import abc | 63 import abc |
| 64 | 64 |
| 65 from idl_types import IdlType, IdlUnionType, IdlArrayType, IdlSequenceType | 65 from idl_types import IdlType, IdlUnionType, IdlArrayType, IdlSequenceType, IdlN
ullableType |
| 66 | 66 |
| 67 SPECIAL_KEYWORD_LIST = ['GETTER', 'SETTER', 'DELETER'] | 67 SPECIAL_KEYWORD_LIST = ['GETTER', 'SETTER', 'DELETER'] |
| 68 STANDARD_TYPEDEFS = { | 68 STANDARD_TYPEDEFS = { |
| 69 # http://www.w3.org/TR/WebIDL/#common-DOMTimeStamp | 69 # http://www.w3.org/TR/WebIDL/#common-DOMTimeStamp |
| 70 'DOMTimeStamp': 'unsigned long long', | 70 'DOMTimeStamp': 'unsigned long long', |
| 71 } | 71 } |
| 72 | 72 |
| 73 | 73 |
| 74 ################################################################################ | 74 ################################################################################ |
| 75 # TypedObject (mixin for typedef resolution) | 75 # TypedObject (mixin for typedef resolution) |
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| 630 | 630 |
| 631 | 631 |
| 632 ################################################################################ | 632 ################################################################################ |
| 633 # Extended attributes | 633 # Extended attributes |
| 634 ################################################################################ | 634 ################################################################################ |
| 635 | 635 |
| 636 def ext_attributes_node_to_extended_attributes(idl_name, node): | 636 def ext_attributes_node_to_extended_attributes(idl_name, node): |
| 637 """ | 637 """ |
| 638 Returns: | 638 Returns: |
| 639 Dictionary of {ExtAttributeName: ExtAttributeValue}. | 639 Dictionary of {ExtAttributeName: ExtAttributeValue}. |
| 640 Value is usually a string, with three exceptions: | 640 Value is usually a string, with these exceptions: |
| 641 Constructors: value is a list of Arguments nodes, corresponding to | 641 Constructors: value is a list of Arguments nodes, corresponding to |
| 642 possible signatures of the constructor. | 642 possible signatures of the constructor. |
| 643 CustomConstructors: value is a list of Arguments nodes, corresponding to | 643 CustomConstructors: value is a list of Arguments nodes, corresponding to |
| 644 possible signatures of the custom constructor. | 644 possible signatures of the custom constructor. |
| 645 NamedConstructor: value is a Call node, corresponding to the single | 645 NamedConstructor: value is a Call node, corresponding to the single |
| 646 signature of the named constructor. | 646 signature of the named constructor. |
| 647 SetWrapperReferenceTo: value is an Arguments node. |
| 647 """ | 648 """ |
| 648 # Primarily just make a dictionary from the children. | 649 # Primarily just make a dictionary from the children. |
| 649 # The only complexity is handling various types of constructors: | 650 # The only complexity is handling various types of constructors: |
| 650 # Constructors and Custom Constructors can have duplicate entries due to | 651 # Constructors and Custom Constructors can have duplicate entries due to |
| 651 # overloading, and thus are stored in temporary lists. | 652 # overloading, and thus are stored in temporary lists. |
| 652 # However, Named Constructors cannot be overloaded, and thus do not have | 653 # However, Named Constructors cannot be overloaded, and thus do not have |
| 653 # a list. | 654 # a list. |
| 654 # FIXME: move Constructor logic into separate function, instead of modifying | 655 # FIXME: move Constructor logic into separate function, instead of modifying |
| 655 # extended attributes in-place. | 656 # extended attributes in-place. |
| 656 constructors = [] | 657 constructors = [] |
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| 748 | 749 |
| 749 ################################################################################ | 750 ################################################################################ |
| 750 # Types | 751 # Types |
| 751 ################################################################################ | 752 ################################################################################ |
| 752 | 753 |
| 753 def type_node_to_type(node): | 754 def type_node_to_type(node): |
| 754 children = node.GetChildren() | 755 children = node.GetChildren() |
| 755 if len(children) < 1 or len(children) > 2: | 756 if len(children) < 1 or len(children) > 2: |
| 756 raise ValueError('Type node expects 1 or 2 children (type + optional arr
ay []), got %s (multi-dimensional arrays are not supported).' % len(children)) | 757 raise ValueError('Type node expects 1 or 2 children (type + optional arr
ay []), got %s (multi-dimensional arrays are not supported).' % len(children)) |
| 757 | 758 |
| 758 is_nullable = node.GetProperty('NULLABLE') or False # syntax: T? | 759 base_type = type_node_inner_to_type(children[0]) |
| 759 type_node_child = children[0] | 760 |
| 760 base_type = type_node_inner_to_type(type_node_child, is_nullable=is_nullable
) | 761 if node.GetProperty('NULLABLE'): |
| 762 base_type = IdlNullableType(base_type) |
| 761 | 763 |
| 762 if len(children) == 2: | 764 if len(children) == 2: |
| 763 array_node = children[1] | 765 array_node = children[1] |
| 764 array_node_class = array_node.GetClass() | 766 array_node_class = array_node.GetClass() |
| 765 if array_node_class != 'Array': | 767 if array_node_class != 'Array': |
| 766 raise ValueError('Expected Array node as TypeSuffix, got %s node.' %
array_node_class) | 768 raise ValueError('Expected Array node as TypeSuffix, got %s node.' %
array_node_class) |
| 767 array_is_nullable = array_node.GetProperty('NULLABLE') or False | 769 array_type = IdlArrayType(base_type) |
| 768 return IdlArrayType(base_type, is_nullable=array_is_nullable) | 770 if array_node.GetProperty('NULLABLE'): |
| 771 return IdlNullableType(array_type) |
| 772 return array_type |
| 769 | 773 |
| 770 return base_type | 774 return base_type |
| 771 | 775 |
| 772 | 776 |
| 773 def type_node_inner_to_type(node, is_nullable=False): | 777 def type_node_inner_to_type(node): |
| 774 # FIXME: remove is_nullable once have IdlNullableType | |
| 775 node_class = node.GetClass() | 778 node_class = node.GetClass() |
| 776 # Note Type*r*ef, not Typedef, meaning the type is an identifier, thus | 779 # Note Type*r*ef, not Typedef, meaning the type is an identifier, thus |
| 777 # either a typedef shorthand (but not a Typedef declaration itself) or an | 780 # either a typedef shorthand (but not a Typedef declaration itself) or an |
| 778 # interface type. We do not distinguish these, and just use the type name. | 781 # interface type. We do not distinguish these, and just use the type name. |
| 779 if node_class in ['PrimitiveType', 'Typeref']: | 782 if node_class in ['PrimitiveType', 'Typeref']: |
| 780 # unrestricted syntax: unrestricted double | unrestricted float | 783 # unrestricted syntax: unrestricted double | unrestricted float |
| 781 is_unrestricted = node.GetProperty('UNRESTRICTED') or False | 784 is_unrestricted = node.GetProperty('UNRESTRICTED') or False |
| 782 return IdlType(node.GetName(), is_nullable=is_nullable, is_unrestricted=
is_unrestricted) | 785 return IdlType(node.GetName(), is_unrestricted=is_unrestricted) |
| 783 elif node_class == 'Any': | 786 elif node_class == 'Any': |
| 784 return IdlType('any', is_nullable=is_nullable) | 787 return IdlType('any') |
| 785 elif node_class == 'Sequence': | 788 elif node_class == 'Sequence': |
| 786 sequence_is_nullable = node.GetProperty('NULLABLE') or False | 789 return sequence_node_to_type(node) |
| 787 return sequence_node_to_type(node, is_nullable=sequence_is_nullable) | |
| 788 elif node_class == 'UnionType': | 790 elif node_class == 'UnionType': |
| 789 return union_type_node_to_idl_union_type(node, is_nullable=is_nullable) | 791 return union_type_node_to_idl_union_type(node) |
| 790 raise ValueError('Unrecognized node class: %s' % node_class) | 792 raise ValueError('Unrecognized node class: %s' % node_class) |
| 791 | 793 |
| 792 | 794 |
| 793 def sequence_node_to_type(node, is_nullable=False): | 795 def sequence_node_to_type(node): |
| 794 children = node.GetChildren() | 796 children = node.GetChildren() |
| 795 if len(children) != 1: | 797 if len(children) != 1: |
| 796 raise ValueError('Sequence node expects exactly 1 child, got %s' % len(c
hildren)) | 798 raise ValueError('Sequence node expects exactly 1 child, got %s' % len(c
hildren)) |
| 797 sequence_child = children[0] | 799 sequence_child = children[0] |
| 798 sequence_child_class = sequence_child.GetClass() | 800 sequence_child_class = sequence_child.GetClass() |
| 799 if sequence_child_class != 'Type': | 801 if sequence_child_class != 'Type': |
| 800 raise ValueError('Unrecognized node class: %s' % sequence_child_class) | 802 raise ValueError('Unrecognized node class: %s' % sequence_child_class) |
| 801 element_type = type_node_to_type(sequence_child) | 803 element_type = type_node_to_type(sequence_child) |
| 802 return IdlSequenceType(element_type, is_nullable=is_nullable) | 804 sequence_type = IdlSequenceType(element_type) |
| 805 if node.GetProperty('NULLABLE'): |
| 806 return IdlNullableType(sequence_type) |
| 807 return sequence_type |
| 803 | 808 |
| 804 | 809 |
| 805 def typedef_node_to_type(node): | 810 def typedef_node_to_type(node): |
| 806 children = node.GetChildren() | 811 children = node.GetChildren() |
| 807 if len(children) != 1: | 812 if len(children) != 1: |
| 808 raise ValueError('Typedef node with %s children, expected 1' % len(child
ren)) | 813 raise ValueError('Typedef node with %s children, expected 1' % len(child
ren)) |
| 809 child = children[0] | 814 child = children[0] |
| 810 child_class = child.GetClass() | 815 child_class = child.GetClass() |
| 811 if child_class != 'Type': | 816 if child_class != 'Type': |
| 812 raise ValueError('Unrecognized node class: %s' % child_class) | 817 raise ValueError('Unrecognized node class: %s' % child_class) |
| 813 return type_node_to_type(child) | 818 return type_node_to_type(child) |
| 814 | 819 |
| 815 | 820 |
| 816 def union_type_node_to_idl_union_type(node, is_nullable=False): | 821 def union_type_node_to_idl_union_type(node): |
| 817 member_types = [type_node_to_type(member_type_node) | 822 member_types = [type_node_to_type(member_type_node) |
| 818 for member_type_node in node.GetChildren()] | 823 for member_type_node in node.GetChildren()] |
| 819 return IdlUnionType(member_types, is_nullable=is_nullable) | 824 return IdlUnionType(member_types) |
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