First Commit
This commit is contained in:
@@ -0,0 +1,588 @@
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# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 Thomas Krijnen <thomas@aecgeeks.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import annotations
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import operator
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import re
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import nodes
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import codegen
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import templates
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import mapping
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from collections import defaultdict
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try:
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import ifcopenshell.ifcopenshell_wrapper as w
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except:
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pass
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class LateBoundSchemaInstantiator:
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def __init__(self, schema_name):
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self.schema_name = schema_name
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self.schema_name_title = schema_name.capitalize()
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self.declarations = {}
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self.names = []
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# We need to make sure anonymous types are not gc'ed.
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self.cache = []
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def aggregation_type(self, aggr_type, bound1, bound2, decl_type):
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self.cache.append(
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w.aggregation_type(getattr(w.aggregation_type, aggr_type + "_type"), bound1, bound2, decl_type)
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)
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return self.cache[-1]
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def simple_type(self, type):
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self.cache.append(w.simple_type(getattr(w.simple_type, type + "_type")))
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return self.cache[-1]
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def named_type(self, type):
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self.cache.append(w.named_type(self.declarations[str(type)]))
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return self.cache[-1]
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def declare(self, definition_type, name):
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self.names.append(str(name))
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def begin_schema(self):
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self.names.sort(key=str.lower)
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def typedef(self, name, declared_type):
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index_in_schema = self.names.index(str(name))
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self.declarations[str(name)] = w.type_declaration(name, index_in_schema, declared_type)
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def enumeration(self, name, enum):
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schema_name = self.schema_name
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index_in_schema = self.names.index(str(name))
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self.declarations[str(name)] = w.enumeration_type(name, index_in_schema, enum.values)
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def entity(self, name, type):
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index_in_schema = self.names.index(str(name))
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supertype = None if len(type.supertypes) == 0 else self.declarations[str(type.supertypes[0])]
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self.declarations[str(name)] = w.entity(name, type.abstract, index_in_schema, supertype)
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def select(self, name, type):
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index_in_schema = self.names.index(str(name))
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children = [self.declarations[str(v)] for v in type.values]
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self.declarations[str(name)] = w.select_type(name, index_in_schema, children)
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def entity_attributes(self, name, attribute_definitions, is_derived):
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attributes = []
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for attr_name, decl_type, optional in attribute_definitions:
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attributes.append(w.attribute(attr_name, decl_type, optional))
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self.declarations[str(name)].set_attributes(attributes, is_derived)
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self.cache.extend(attributes)
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def inverse_attributes(self, name, inv_attrs):
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attributes = []
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for attr_name, aggr_type, bound1, bound2, entity_ref, attribute_entity, attribute_entity_index in inv_attrs:
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en = self.declarations[str(entity_ref)]
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attributes.append(
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w.inverse_attribute(
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attr_name,
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getattr(w.inverse_attribute, aggr_type + "_type"),
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bound1,
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bound2,
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en,
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en.attributes()[attribute_entity_index],
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)
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)
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self.cache.extend(attributes)
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self.declarations[str(name)].set_inverse_attributes(attributes)
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def entity_subtypes(self, name, tys):
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self.declarations[str(name)].set_subtypes([self.declarations[str(v)] for v in tys])
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def finalize(self, can_be_instantiated_set, override_schema_name=None):
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self.schema = w.schema_definition(
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override_schema_name or self.schema_name, list(self.declarations.values()), None
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)
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def disown(self):
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for elem in self.cache + list(self.declarations.values()):
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elem.this.disown()
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class string_pool:
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def __init__(self, fn):
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self.di = {}
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self.fn = fn
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def append(self, v):
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def _():
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if i := self.di.get(v):
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return i
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else:
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i = len(self.di)
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self.di[v] = i
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return i
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return self.fn(_())
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def __iter__(self):
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return iter(self.di.keys())
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class EarlyBoundCodeWriter:
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def __init__(self, schema_name):
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self.strings = string_pool(lambda i: "strings[%d]" % i)
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self.schema_name = schema_name
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self.schema_name_title = schema_name.capitalize()
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self.statements = [
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"",
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'#include "../ifcparse/IfcSchema.h"',
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'#include "../ifcparse/%(schema_name_title)s.h"' % self.__dict__,
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"#include <string>",
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"",
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"using namespace std::string_literals;",
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"using namespace IfcParse;",
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"",
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]
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self.names = []
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def aggregation_type(self, aggr_type, bound1, bound2, decl_type):
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return (
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"new aggregation_type(aggregation_type::%(aggr_type)s_type, %(bound1)d, %(bound2)d, %(decl_type)s)"
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% locals()
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)
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def simple_type(self, type):
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return "new simple_type(simple_type::%s_type)" % type
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def named_type(self, type):
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return "new named_type(%s_%s_type)" % (self.schema_name, type)
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def declare(self, definition_type, name):
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schema_name = self.schema_name
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# self.statements.append("%(definition_type)s* %(schema_name)s_%(name)s_type = 0;" % locals())
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self.names.append(name)
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def begin_schema(self):
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self.names.sort(key=str.lower)
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schema_name = self.schema_name.upper()
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num_names = len(self.names)
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self.statements.append("declaration* %(schema_name)s_types[%(num_names)d] = {nullptr};" % locals())
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self.statements.append("{factory_placeholder}")
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# self.statements.append(
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# """
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# #if defined(__clang__)
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# __attribute__((optnone))
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# #elif defined(__GNUC__) || defined(__GNUG__)
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# #pragma GCC push_options
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# #pragma GCC optimize ("O0")
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# #elif defined(_MSC_VER)
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# #pragma optimize("", off)
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# #endif
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# """
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# )
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self.statements.append("IfcParse::schema_definition* %s_populate_schema() {" % self.schema_name.upper())
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self.statements.append("{string_pool_placeholder}")
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def typedef(self, name, declared_type):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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ref = self.strings.append(name)
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self.statements.append(
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" %(schema_name)s_types[%(index_in_schema)d] = new type_declaration(%(ref)s, %(index_in_schema)d, %(declared_type)s);"
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% locals()
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)
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def enumeration(self, name, enum):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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ref = self.strings.append(name)
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items = ",".join(self.strings.append(v) for v in enum.values)
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self.statements.append(
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" %(schema_name)s_types[%(index_in_schema)d] = new enumeration_type(%(ref)s, %(index_in_schema)d, {%(items)s});"
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% locals()
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)
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def entity(self, name, type):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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ref = self.strings.append(name)
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supertype = (
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"0"
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if len(type.supertypes) == 0
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else "%s_types[%d]" % (self.schema_name, self.names.index(type.supertypes[0]))
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)
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is_abstract = "true" if type.abstract else "false"
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self.statements.append(
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" %(schema_name)s_types[%(index_in_schema)d] = new entity(%(ref)s, %(is_abstract)s, %(index_in_schema)d, (entity*) %(supertype)s);"
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% locals()
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)
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def select(self, name, type):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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ref = self.strings.append(name)
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items = ",".join(
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map(lambda v: "%s_types[%d]" % (self.schema_name, self.names.index(v)), sorted(map(str, type.values)))
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)
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self.statements.append(
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" %(schema_name)s_types[%(index_in_schema)d] = new select_type(%(ref)s, %(index_in_schema)d, {%(items)s});"
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% locals()
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)
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def entity_attributes(self, name, attribute_definitions, is_derived):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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def _():
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index_in_schema = self.names.index(name)
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schema_name = self.schema_name
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for attr_name, decl_type, optional in attribute_definitions:
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attr_name_ref = self.strings.append(attr_name)
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optional_cpp = str(optional).lower()
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yield "new attribute(%(attr_name_ref)s, %(decl_type)s, %(optional_cpp)s)" % locals()
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attributes = ",".join(_())
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derived = ",".join(map(lambda b: str(b).lower(), is_derived))
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self.statements.append(
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" ((entity*)%(schema_name)s_types[%(index_in_schema)d])->set_attributes({%(attributes)s}, {%(derived)s});"
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% locals()
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)
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def inverse_attributes(self, name, inv_attrs):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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def _():
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schema_name = self.schema_name
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index_in_schema = self.names.index(name)
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for attr_name, aggr_type, bound1, bound2, entity_ref, attribute_entity, attribute_entity_index in inv_attrs:
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attr_name_ref = self.strings.append(attr_name)
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opposite_index_in_schema = self.names.index(entity_ref)
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opposite1 = "%(schema_name)s_types[%(opposite_index_in_schema)d]" % locals()
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opposite_index_in_schema = self.names.index(attribute_entity)
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opposite2 = "%(schema_name)s_types[%(opposite_index_in_schema)d]" % locals()
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yield "new inverse_attribute(%(attr_name_ref)s, inverse_attribute::%(aggr_type)s_type, %(bound1)d, %(bound2)d, ((entity*) %(opposite1)s), ((entity*) %(opposite2)s)->attributes()[%(attribute_entity_index)d])" % locals()
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attributes = ",".join(_())
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self.statements.append(
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" ((entity*) %(schema_name)s_types[%(index_in_schema)d])->set_inverse_attributes({%(attributes)s});"
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% locals()
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)
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def entity_subtypes(self, name, tys):
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schema_name = self.schema_name.upper()
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index_in_schema = self.names.index(name)
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subtypes = (
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",".join(map(lambda t: ("((entity*) %%(schema_name)s_types[%d])" % self.names.index(t)), tys)) % locals()
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)
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self.statements.append(
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" ((entity*) %(schema_name)s_types[%(index_in_schema)d])->set_subtypes({%(subtypes)s});" % locals()
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)
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def finalize(self, can_be_instantiated_set):
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schema_name = self.schema_name.upper()
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schema_name_title = self.schema_name.capitalize()
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def _():
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schema_name = self.schema_name.upper()
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schema_name_title = self.schema_name.capitalize()
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for type_name in self.names:
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index_in_schema = self.names.index(type_name)
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yield "%(schema_name)s_types[%(index_in_schema)d]" % locals()
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declarations = ",".join(_())
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schema_name_ref = self.strings.append(schema_name)
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self.statements.append(
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" return new schema_definition(%(schema_name_ref)s, {%(declarations)s}, new %(schema_name)s_instance_factory());"
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% locals()
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)
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self.statements.append("}")
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# self.statements.append(
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# """
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# #if defined(__clang__)
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# #elif defined(__GNUC__) || defined(__GNUG__)
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# #pragma GCC pop_options
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# #elif defined(_MSC_VER)
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# #pragma optimize("", on)
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# #endif
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# """
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# )
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self.statements.extend(
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(
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"static std::unique_ptr<schema_definition> schema;",
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"",
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"void %s::clear_schema() {" % schema_name_title,
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" schema.reset();",
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"}",
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"",
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)
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)
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self.statements.extend(
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(
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"const schema_definition& %s::get_schema() {" % schema_name_title,
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" if (!schema) {",
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" schema.reset(%(schema_name)s_populate_schema());" % locals(),
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" }",
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" return *schema;",
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"}",
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"",
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"",
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)
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)
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def can_be_instantiated(idx_name):
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name = idx_name[1]
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return name in can_be_instantiated_set
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instance_mapping = """switch(decl->index_in_schema()) {
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%s
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default: throw IfcParse::IfcException(decl->name() + " cannot be instantiated");
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}
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""" % "\n ".join(
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map(
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lambda tup: ("case %%d: return new ::%s::%%s(std::move(data));" % schema_name_title) % tup,
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filter(can_be_instantiated, enumerate(self.names)),
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)
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)
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self.statements[self.statements.index("{factory_placeholder}")] = """
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class %(schema_name)s_instance_factory : public IfcParse::instance_factory {
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virtual IfcUtil::IfcBaseClass* operator()(const IfcParse::declaration* decl, IfcEntityInstanceData&& data) const {
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%(instance_mapping)s
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||||
}
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||||
};
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||||
""" % locals()
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||||
|
||||
""
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||||
self.statements[self.statements.index("{string_pool_placeholder}")] = """
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const std::string strings[] = {%s};
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""" % ",".join(map(lambda s: '"%s"s' % s, self.strings))
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||||
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||||
def __str__(self):
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return "\n".join(self.statements)
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||||
|
||||
|
||||
class SchemaClass(codegen.Base):
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||||
def __init__(self, mapping: mapping.Mapping, code=EarlyBoundCodeWriter):
|
||||
class UnmetDependenciesException(Exception):
|
||||
pass
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||||
|
||||
schema_name = mapping.schema.name
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self.schema_name = schema_name_title = schema_name.capitalize()
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||||
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declared_types = []
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x = code(schema_name)
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def transform_to_indexed(fn):
|
||||
def wrapper(*args, **kwargs):
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schema_name_upper = mapping.schema.name.upper()
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declared_type = fn(*args, **kwargs)
|
||||
if "simple_type" in declared_type:
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||||
pass
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||||
else:
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||||
match = re.search(r"\((\w+?_[\w+]+?_\w+?)\)", declared_type)
|
||||
if match:
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old_decl = match.group(1)
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||||
name = old_decl.lower().replace(schema_name.lower() + "_", "").replace("_type", "")
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||||
idx = [n.lower() for n in x.names].index(name)
|
||||
declared_type = declared_type.replace(
|
||||
old_decl, "%(schema_name_upper)s_types[%(idx)d]" % locals()
|
||||
)
|
||||
return declared_type
|
||||
|
||||
return wrapper if code == EarlyBoundCodeWriter else fn
|
||||
|
||||
@transform_to_indexed
|
||||
def get_declared_type(type, emitted_names=None):
|
||||
if isinstance(type, nodes.SimpleType):
|
||||
type = type.type
|
||||
if isinstance(type, nodes.NamedType):
|
||||
type = str(type)
|
||||
|
||||
if isinstance(type, nodes.AggregationType):
|
||||
aggr_type = type.aggregate_type
|
||||
make_bound = lambda b: -1 if b == "?" else int(b)
|
||||
bound1, bound2 = map(make_bound, (type.bounds.lower, type.bounds.upper))
|
||||
decl_type = get_declared_type(type.type, emitted_names)
|
||||
return x.aggregation_type(aggr_type, bound1, bound2, decl_type)
|
||||
elif isinstance(type, nodes.BinaryType):
|
||||
return x.simple_type("binary")
|
||||
elif isinstance(type, nodes.StringType):
|
||||
return x.simple_type("string")
|
||||
elif isinstance(type, str):
|
||||
if mapping.schema.is_type(type) or mapping.schema.is_entity(type):
|
||||
if emitted_names is None or type.lower() in emitted_names:
|
||||
return x.named_type(type)
|
||||
else:
|
||||
raise UnmetDependenciesException(type)
|
||||
else:
|
||||
return x.simple_type(type)
|
||||
else:
|
||||
raise ValueError("No declared type for <%r>" % type)
|
||||
|
||||
def find_inverse_name_and_index(entity_name, attribute_name):
|
||||
entity_name_orig = entity_name
|
||||
attributes_per_subtype = []
|
||||
while True:
|
||||
entity = mapping.schema.entities[entity_name]
|
||||
attr_names = list(map(operator.attrgetter("name"), entity.attributes))
|
||||
if len(attr_names):
|
||||
attributes_per_subtype.append((entity_name, attr_names))
|
||||
if len(entity.supertypes) != 1:
|
||||
break
|
||||
entity_name = entity.supertypes[0]
|
||||
index = 0
|
||||
for et, attrs in attributes_per_subtype[::-1]:
|
||||
try:
|
||||
return et, attrs.index(attribute_name)
|
||||
except:
|
||||
pass
|
||||
|
||||
else:
|
||||
raise Exception("No attribute named %s.%s" % (entity_name_orig, attribute_name))
|
||||
|
||||
collections_by_type = (
|
||||
("entity", mapping.schema.entities),
|
||||
("type_declaration", mapping.schema.simpletypes),
|
||||
("select_type", mapping.schema.selects),
|
||||
("enumeration_type", mapping.schema.enumerations),
|
||||
)
|
||||
|
||||
for definition_type, collection in collections_by_type:
|
||||
for name in collection.keys():
|
||||
x.declare(definition_type, name)
|
||||
|
||||
declarations_by_index = []
|
||||
|
||||
x.begin_schema()
|
||||
|
||||
emitted = set()
|
||||
len_to_emit = len(mapping.schema) - len(mapping.schema.rules) - len(mapping.schema.functions)
|
||||
|
||||
def write_simpletype(schema_name, name, type):
|
||||
try:
|
||||
declared_type = get_declared_type(type, emitted)
|
||||
except UnmetDependenciesException:
|
||||
# @todo?
|
||||
# print("Unmet", repr(name))
|
||||
return False
|
||||
|
||||
x.typedef(name, declared_type)
|
||||
|
||||
def write_enumeration(schema_name, name, enum):
|
||||
x.enumeration(name, enum)
|
||||
|
||||
def write_entity(schema_name, name, type):
|
||||
if len(type.supertypes) == 0 or set(map(lambda s: s.lower(), type.supertypes)) < emitted:
|
||||
x.entity(name, type)
|
||||
else:
|
||||
return False
|
||||
|
||||
def write_select(schema_name, name, type):
|
||||
if set(map(lambda s: str(s).lower(), type.values)) < emitted:
|
||||
x.select(name, type)
|
||||
else:
|
||||
return False
|
||||
|
||||
def write(name):
|
||||
if mapping.schema.is_simpletype(name):
|
||||
fn = write_simpletype
|
||||
elif mapping.schema.is_enumeration(name):
|
||||
fn = write_enumeration
|
||||
elif mapping.schema.is_entity(name):
|
||||
fn = write_entity
|
||||
elif mapping.schema.is_select(name):
|
||||
fn = write_select
|
||||
elif name in mapping.schema.rules:
|
||||
return
|
||||
elif name in mapping.schema.functions:
|
||||
return
|
||||
|
||||
decl = mapping.schema[name]
|
||||
if isinstance(decl, nodes.TypeDeclaration):
|
||||
decl = decl.type
|
||||
return fn(schema_name, name, decl) is not False
|
||||
|
||||
while len(emitted) < len_to_emit:
|
||||
for name in mapping.schema:
|
||||
if name.lower() in emitted:
|
||||
continue
|
||||
if write(name):
|
||||
emitted.add(name.lower())
|
||||
declarations_by_index.append(name)
|
||||
|
||||
num_declarations = len(emitted)
|
||||
|
||||
for name, type in mapping.schema.entities.items():
|
||||
derived = set(mapping.derived_in_supertype(type))
|
||||
attribute_names = list(map(operator.attrgetter("name"), mapping.arguments(type)))
|
||||
is_derived = [b in derived for b in attribute_names]
|
||||
attribute_definitions = []
|
||||
for attr in type.attributes:
|
||||
decl_type = get_declared_type(attr.type)
|
||||
attribute_definitions.append((attr.name, decl_type, attr.optional))
|
||||
x.entity_attributes(name, attribute_definitions, is_derived)
|
||||
|
||||
for name, type in mapping.schema.entities.items():
|
||||
if type.inverse:
|
||||
inv_attrs = []
|
||||
for attr in type.inverse:
|
||||
if attr.bounds:
|
||||
make_bound = lambda b: -1 if b == "?" else int(b)
|
||||
bound1, bound2 = map(make_bound, (attr.bounds.lower, attr.bounds.upper))
|
||||
else:
|
||||
bound1, bound2 = -1, -1
|
||||
attr_name, aggr_type, entity_ref = attr.name, attr.type, attr.entity
|
||||
if aggr_type is None:
|
||||
aggr_type = "unspecified"
|
||||
attribute_entity, attribute_entity_index = find_inverse_name_and_index(entity_ref, attr.attribute)
|
||||
inv_attrs.append(
|
||||
(attr_name, aggr_type, bound1, bound2, entity_ref, attribute_entity, attribute_entity_index)
|
||||
)
|
||||
x.inverse_attributes(name, inv_attrs)
|
||||
|
||||
subtypes = defaultdict(list)
|
||||
|
||||
for name, type in mapping.schema.entities.items():
|
||||
for ty in type.supertypes:
|
||||
subtypes[ty].append(name)
|
||||
|
||||
for name, tys in subtypes.items():
|
||||
x.entity_subtypes(name, tys)
|
||||
|
||||
can_be_instantiated_set = set(
|
||||
list(mapping.schema.entities.keys())
|
||||
+ list(mapping.schema.simpletypes.keys())
|
||||
+ list(mapping.schema.enumerations.keys())
|
||||
)
|
||||
|
||||
x.finalize(can_be_instantiated_set)
|
||||
|
||||
self.str = str(x)
|
||||
self.file_name = "%s-schema.cpp" % self.schema_name
|
||||
self.code = x
|
||||
|
||||
def __repr__(self):
|
||||
return self.str
|
||||
|
||||
|
||||
Generator = SchemaClass
|
||||
Reference in New Issue
Block a user