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1 {# TODO(yzshen): Make these templates more readable. #} | 1 {# TODO(yzshen): Make these templates more readable. #} |
2 | 2 |
3 {# Computes the serialized size for the specified struct. | 3 {# Computes the serialized size for the specified struct. |
4 |struct| is the struct definition. | 4 |struct| is the struct definition. |
5 |input_field_pattern| should be a pattern that contains one string | 5 |input_field_pattern| should be a pattern that contains one string |
6 placeholder, for example, "input->%s", "p_%s". The placeholder will be | 6 placeholder, for example, "input->%s", "p_%s". The placeholder will be |
7 substituted with struct field names to refer to the input fields. | 7 substituted with struct field names to refer to the input fields. |
8 This macro is expanded to compute seriailized size for both: | 8 This macro is expanded to compute seriailized size for both: |
9 - user-defined structs: the input is an instance of the corresponding struct | 9 - user-defined structs: the input is an instance of the corresponding struct |
10 wrapper class. | 10 wrapper class. |
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83 MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( | 83 MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( |
84 {%- if kind|is_interface_kind %} | 84 {%- if kind|is_interface_kind %} |
85 !{{output}}->{{name}}.handle.is_valid(), | 85 !{{output}}->{{name}}.handle.is_valid(), |
86 {%- else %} | 86 {%- else %} |
87 !{{output}}->{{name}}.is_valid(), | 87 !{{output}}->{{name}}.is_valid(), |
88 {%- endif %} | 88 {%- endif %} |
89 mojo::internal::VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE, | 89 mojo::internal::VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE, |
90 "invalid {{name}} in {{struct_display_name}}"); | 90 "invalid {{name}} in {{struct_display_name}}"); |
91 {%- endif %} | 91 {%- endif %} |
92 {%- elif kind|is_associated_kind %} | 92 {%- elif kind|is_associated_kind %} |
93 // TODO(yzshen): add serialization logic for associated kinds. | 93 // TODO(yzshen): add some DCHECKs for non-nullable, is_local, correct router,
etc. |
| 94 {%- if kind|is_associated_interface_kind %} |
| 95 mojo::internal::AssociatedInterfacePtrInfoToData({{input_field}}.Pass(), &{{ou
tput}}->{{name}}); |
| 96 {%- else %} |
| 97 {{output}}->{{name}} = mojo::internal::AssociatedInterfaceRequestHelper::PassH
andle(&{{input_field}}).release(); |
| 98 {%- endif %} |
94 {%- else %} | 99 {%- else %} |
95 {{output}}->{{name}} = {{input_field}}; | 100 {{output}}->{{name}} = {{input_field}}; |
96 {%- endif %} | 101 {%- endif %} |
97 {%- endfor %} | 102 {%- endfor %} |
98 {%- endmacro -%} | 103 {%- endmacro -%} |
99 | 104 |
100 {# Deserializes the specified struct. | 105 {# Deserializes the specified struct. |
101 |struct| is the struct definition. | 106 |struct| is the struct definition. |
102 |input| is the name of the input struct instance. | 107 |input| is the name of the input struct instance. |
103 |output_field_pattern| should be a pattern that contains one string | 108 |output_field_pattern| should be a pattern that contains one string |
104 placeholder, for example, "result->%s", "p_%s". The placeholder will be | 109 placeholder, for example, "result->%s", "p_%s". The placeholder will be |
105 substituted with struct field names to refer to the output fields. | 110 substituted with struct field names to refer to the output fields. |
106 This macro is expanded to do deserialization for both: | 111 This macro is expanded to do deserialization for both: |
107 - user-defined structs: the output is an instance of the corresponding | 112 - user-defined structs: the output is an instance of the corresponding |
108 struct wrapper class. | 113 struct wrapper class. |
109 - method parameters/response parameters: the output is a list of | 114 - method parameters/response parameters: the output is a list of |
110 arguments. #} | 115 arguments. #} |
111 {%- macro deserialize(struct, input, output_field_pattern) -%} | 116 |context| is the name of the serialization context. |
| 117 {%- macro deserialize(struct, input, output_field_pattern, context) -%} |
112 do { | 118 do { |
113 // NOTE: The memory backing |{{input}}| may has be smaller than | 119 // NOTE: The memory backing |{{input}}| may has be smaller than |
114 // |sizeof(*{{input}})| if the message comes from an older version. | 120 // |sizeof(*{{input}})| if the message comes from an older version. |
115 {#- Before deserialize fields introduced at a certain version, we need to add | 121 {#- Before deserialize fields introduced at a certain version, we need to add |
116 a version check, which makes sure we skip further deserialization if | 122 a version check, which makes sure we skip further deserialization if |
117 |input| is from an earlier version. |last_checked_version| records the | 123 |input| is from an earlier version. |last_checked_version| records the |
118 last version that we have added such version check. #} | 124 last version that we have added such version check. #} |
119 {%- set last_checked_version = 0 %} | 125 {%- set last_checked_version = 0 %} |
120 {%- for pf in struct.packed.packed_fields_in_ordinal_order %} | 126 {%- for pf in struct.packed.packed_fields_in_ordinal_order %} |
121 {%- set output_field = output_field_pattern|format(pf.field.name) %} | 127 {%- set output_field = output_field_pattern|format(pf.field.name) %} |
122 {%- set name = pf.field.name %} | 128 {%- set name = pf.field.name %} |
123 {%- set kind = pf.field.kind %} | 129 {%- set kind = pf.field.kind %} |
124 {%- if pf.min_version > last_checked_version %} | 130 {%- if pf.min_version > last_checked_version %} |
125 {%- set last_checked_version = pf.min_version %} | 131 {%- set last_checked_version = pf.min_version %} |
126 if ({{input}}->header_.version < {{pf.min_version}}) | 132 if ({{input}}->header_.version < {{pf.min_version}}) |
127 break; | 133 break; |
128 {%- endif %} | 134 {%- endif %} |
129 {%- if kind|is_object_kind %} | 135 {%- if kind|is_object_kind %} |
130 {%- if kind|is_union_kind %} | 136 {%- if kind|is_union_kind %} |
131 Deserialize_(&{{input}}->{{name}}, &{{output_field}}); | 137 Deserialize_(&{{input}}->{{name}}, &{{output_field}}, {{context}}); |
132 {%- else %} | 138 {%- else %} |
133 Deserialize_({{input}}->{{name}}.ptr, &{{output_field}}); | 139 Deserialize_({{input}}->{{name}}.ptr, &{{output_field}}, {{context}}); |
134 {%- endif %} | 140 {%- endif %} |
135 {%- elif kind|is_interface_kind %} | 141 {%- elif kind|is_interface_kind %} |
136 mojo::internal::InterfaceDataToPointer(&{{input}}->{{name}}, &{{output_field
}}); | 142 mojo::internal::InterfaceDataToPointer(&{{input}}->{{name}}, &{{output_field
}}); |
137 {%- elif kind|is_interface_request_kind %} | 143 {%- elif kind|is_interface_request_kind %} |
138 {{output_field}}.Bind(mojo::MakeScopedHandle(mojo::internal::FetchAndReset(&
{{input}}->{{name}}))); | 144 {{output_field}}.Bind(mojo::MakeScopedHandle(mojo::internal::FetchAndReset(&
{{input}}->{{name}}))); |
139 {%- elif kind|is_any_handle_kind %} | 145 {%- elif kind|is_any_handle_kind %} |
140 {{output_field}}.reset(mojo::internal::FetchAndReset(&{{input}}->{{name}})); | 146 {{output_field}}.reset(mojo::internal::FetchAndReset(&{{input}}->{{name}})); |
141 {%- elif kind|is_associated_kind %} | 147 {%- elif kind|is_associated_interface_kind %} |
142 // TODO(yzshen): add deserialization logic for associated kinds. | 148 mojo::internal::AssociatedInterfaceDataToPtrInfo(&{{input}}->{{name}}, &{{ou
tput_field}}, ({{context}})->router.get()); |
| 149 {%- elif kind|is_associated_interface_request_kind %} |
| 150 mojo::internal::AssociatedInterfaceRequestHelper::SetHandle( |
| 151 &{{output_field}}, |
| 152 ({{context}})->router->CreateLocalEndpointHandle(mojo::internal::FetchAn
dReset(&{{input}}->{{name}}))); |
143 {%- elif kind|is_enum_kind %} | 153 {%- elif kind|is_enum_kind %} |
144 {{output_field}} = static_cast<{{kind|cpp_wrapper_type}}>({{input}}->{{name}
}); | 154 {{output_field}} = static_cast<{{kind|cpp_wrapper_type}}>({{input}}->{{name}
}); |
145 {%- else %} | 155 {%- else %} |
146 {{output_field}} = {{input}}->{{name}}; | 156 {{output_field}} = {{input}}->{{name}}; |
147 {%- endif %} | 157 {%- endif %} |
148 {%- endfor %} | 158 {%- endfor %} |
149 } while (false); | 159 } while (false); |
150 {%- endmacro %} | 160 {%- endmacro %} |
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