def get_schema_object(
name: typing.Union[str, qlast.ObjectRef],
module: typing.Optional[str] = None,
*,
item_types: typing.Optional[typing.List[s_obj.ObjectMeta]],
ctx: context.ContextLevel,
srcctx: typing.Optional[parsing.ParserContext] = None) -> s_obj.Object:
if isinstance(name, qlast.ObjectRef):
if srcctx is None:
srcctx = name.context
module = name.module
name = name.name
if module:
name = sn.Name(name=name, module=module)
if not module:
result = ctx.aliased_views.get(name)
if result is not None:
return result
try:
scls = ctx.schema.get(name=name,
module_aliases=ctx.modaliases,
type=item_types)
except s_err.ItemNotFoundError as e:
qlerror = qlerrors.EdgeQLError(e.args[0], context=srcctx)
s_utils.enrich_schema_lookup_error(qlerror,
name,
modaliases=ctx.modaliases,
schema=ctx.schema,
item_types=item_types)
raise qlerror
except s_err.SchemaError as e:
raise qlerrors.EdgeQLError(e.args[0], context=srcctx)
result = ctx.aliased_views.get(scls.name)
if result is None:
result = scls
return result
def get_schema_object(
name: typing.Union[str, qlast.ObjectRef],
module: typing.Optional[str] = None,
*,
item_types: typing.Optional[typing.List[s_obj.ObjectMeta]],
ctx: context.ContextLevel,
srcctx: typing.Optional[parsing.ParserContext] = None) -> s_obj.Object:
if isinstance(name, qlast.ObjectRef):
if srcctx is None:
srcctx = name.context
module = name.module
name = name.name
elif isinstance(name, qlast.AnyType):
return s_pseudo.Any.create()
if module:
name = sn.Name(name=name, module=module)
if not module:
result = ctx.aliased_views.get(name)
if result is not None:
return result
try:
stype = ctx.env.schema.get(name=name,
module_aliases=ctx.modaliases,
type=item_types)
except errors.QueryError as e:
s_utils.enrich_schema_lookup_error(e,
name,
modaliases=ctx.modaliases,
schema=ctx.env.schema,
item_types=item_types)
raise
result = ctx.aliased_views.get(stype.get_name(ctx.env.schema))
if result is None:
result = stype
return result
def resolve_ptr(near_endpoint: s_sources.Source,
ptr_name: typing.Tuple[str, str],
direction: s_pointers.PointerDirection,
target: typing.Optional[s_nodes.Node] = None,
*,
source_context: typing.Optional[parsing.ParserContext] = None,
ctx: context.ContextLevel) -> s_pointers.Pointer:
ptr_module, ptr_nqname = ptr_name
if ptr_module:
pointer = schemactx.get_schema_ptr(name=ptr_nqname,
module=ptr_module,
ctx=ctx)
pointer_name = pointer.name
else:
pointer_name = ptr_nqname
ptr = None
if isinstance(near_endpoint, s_sources.Source):
ptr = near_endpoint.resolve_pointer(ctx.schema,
pointer_name,
direction=direction,
look_in_children=False,
include_inherited=True,
far_endpoint=target)
if ptr is None:
if isinstance(near_endpoint, s_links.Link):
msg = (f'{near_endpoint.displayname} has no property '
f'{pointer_name!r}')
if target:
msg += f'of type {target.name!r}'
elif direction == s_pointers.PointerDirection.Outbound:
msg = (f'{near_endpoint.displayname} has no link or property '
f'{pointer_name!r}')
if target:
msg += f'of type {target.name!r}'
else:
path = f'{near_endpoint.name}.{direction}{pointer_name}'
if target:
path += f'[IS {target.name}]'
msg = f'{path} does not resolve to any known path',
err = errors.EdgeQLReferenceError(msg, context=source_context)
if direction == s_pointers.PointerDirection.Outbound:
s_utils.enrich_schema_lookup_error(
err,
pointer_name,
modaliases=ctx.modaliases,
item_types=(s_pointers.Pointer, ),
collection=near_endpoint.pointers.values(),
schema=ctx.schema)
raise err
else:
if direction == s_pointers.PointerDirection.Outbound:
bptr = schemactx.get_schema_ptr(pointer_name, ctx=ctx)
schema_cls = ctx.schema.get('schema::ScalarType')
if bptr.shortname == 'std::__type__':
ptr = bptr.derive(ctx.schema, near_endpoint, schema_cls)
if ptr is None:
# Reference to a property on non-object
msg = 'invalid property reference on a primitive type expression'
raise errors.EdgeQLReferenceError(msg, context=source_context)
return ptr