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-rw-r--r--lib/spack/llnl/util/lang.py2
-rw-r--r--lib/spack/spack/spec.py10
2 files changed, 12 insertions, 0 deletions
diff --git a/lib/spack/llnl/util/lang.py b/lib/spack/llnl/util/lang.py
index 314566e97a..8ec7113782 100644
--- a/lib/spack/llnl/util/lang.py
+++ b/lib/spack/llnl/util/lang.py
@@ -486,6 +486,8 @@ class HashableMap(MutableMapping):
"""This is a hashable, comparable dictionary. Hash is performed on
a tuple of the values in the dictionary."""
+ __slots__ = 'dict',
+
def __init__(self):
self.dict = {}
diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py
index a325670289..fc8a884511 100644
--- a/lib/spack/spack/spec.py
+++ b/lib/spack/spack/spec.py
@@ -243,6 +243,8 @@ class ArchSpec(object):
"""Return the frontend architecture"""
return ArchSpec._return_arch("frontend", "frontend")
+ __slots__ = '_platform', '_os', '_target'
+
def __init__(self, spec_or_platform_tuple=(None, None, None)):
"""Architecture specification a package should be built with.
@@ -553,6 +555,8 @@ class CompilerSpec(object):
versions that a package should be built with. CompilerSpecs have a
name and a version list."""
+ __slots__ = 'name', 'versions'
+
def __init__(self, *args):
nargs = len(args)
if nargs == 1:
@@ -677,6 +681,8 @@ class DependencySpec(object):
- deptypes: list of strings, representing dependency relationships.
"""
+ __slots__ = 'parent', 'spec', 'deptypes'
+
def __init__(self, parent, spec, deptypes):
self.parent = parent
self.spec = spec
@@ -717,6 +723,9 @@ _valid_compiler_flags = ["cflags", "cxxflags", "fflags", "ldflags", "ldlibs", "c
class FlagMap(lang.HashableMap):
+
+ __slots__ = 'spec',
+
def __init__(self, spec):
super(FlagMap, self).__init__()
self.spec = spec
@@ -801,6 +810,7 @@ class _EdgeMap(Mapping):
Edges are stored in a dictionary and keyed by package name.
"""
+ __slots__ = 'edges', 'store_by_child'
def __init__(self, store_by=EdgeDirection.child):
# Sanitize input arguments