def register_set_in_scope(ir_set: irast.Set,
*,
path_scope: irast.ScopeTreeNode = None,
ctx: context.CompilerContext) -> None:
if path_scope is None:
path_scope = ctx.path_scope
try:
path_scope.attach_path(ir_set.path_id)
except irast.InvalidScopeConfiguration as e:
raise errors.EdgeQLSyntaxError(e.args[0],
context=ir_set.context) from e
def fuse_scope_branch(ir_set: irast.Set, parent: irast.ScopeTreeNode,
branch: irast.ScopeTreeNode, *,
ctx: context.ContextLevel) -> None:
if parent.path_id is None:
parent.attach_subtree(branch)
else:
if branch.path_id is None and len(branch.children) == 1:
target_branch = next(iter(branch.children))
else:
target_branch = branch
if parent.path_id == target_branch.path_id:
new_root = irast.new_scope_tree()
for child in tuple(target_branch.children):
new_root.attach_child(child)
parent.attach_subtree(new_root)
else:
parent.attach_subtree(branch)