// Usr is uint64_t, requires SOUFFLE_DOMAIN_64BIT build
.type Usr <: unsigned
.type File <: symbol
.type Name <: symbol
.type Line <: number
.type Kind <: symbol
.type Role <: symbol

.decl function(usr: Usr, name: Name, file: File, line: Line, kind: Kind)
.decl type(usr: Usr, name: Name, file: File, line: Line, kind: Kind)
.decl variable(usr: Usr, name: Name, file: File, line: Line)
.decl calls(caller: Usr, callee: Usr)
.decl inherits(derived: Usr, base: Usr)
.decl overrides(derived: Usr, base: Usr)
.decl member_func(type: Usr, func: Usr)
.decl member_var(type: Usr, var: Usr)
.decl has_type(var: Usr, type: Usr)
.decl reference(usr: Usr, file: File, line: Line, role: Role)
.decl declaration(usr: Usr, file: File, line: Line)
.decl definition(usr: Usr, file: File, line: Line)
.decl includes(includer: File, includee: File)
.decl func_derived(base: Usr, derived: Usr)
.decl type_derived(base: Usr, derived: Usr)
.decl type_instances(type: Usr, instance: Usr)
.decl symbol_in_file(file: File, line: Line, column: number, usr: Usr, kind: Kind, role: Role)