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#!/usr/bin/env python
from __future__ import with_statement
import re, os
import io
PACKAGE_NAMES = [('../CurveParameters.v', [])]
CP_LIST = ['../CurveParametersPackage.v']
CP_BASE_LIST = ['../CurveParametersPackage.v', 'BasePackage.v']
CP_BASE_DEFAULTS_LIST = ['../CurveParametersPackage.v', 'BasePackage.v', 'DefaultsPackage.v']
CP_BASE_DEFAULTS_FREEZE_LADDERSTEP_LIST = ['../CurveParametersPackage.v', 'BasePackage.v', 'DefaultsPackage.v', 'FreezePackage.v', 'LadderstepPackage.v']
NORMAL_PACKAGE_NAMES = [('Base.v', (CP_LIST, None)),
('Defaults.v', (CP_BASE_LIST, 'not_exists')),
('../ReificationTypes.v', (CP_BASE_LIST, None)),
('Freeze.v', (CP_BASE_LIST, 'not_exists')),
('Ladderstep.v', (CP_BASE_DEFAULTS_LIST, 'not_exists')),
('Karatsuba.v', (CP_BASE_DEFAULTS_LIST, 'goldilocks'))]
ALL_FILE_NAMES = PACKAGE_NAMES + NORMAL_PACKAGE_NAMES # PACKAGE_CP_NAMES + WITH_CURVE_BASE_NAMES + ['../ReificationTypes.v']
CONFIGS = ('goldilocks', )
EXCLUDES = ('constr:((wt_divides_chain, wt_divides_chains))', )
contents = {}
lines = {}
fns = {}
PY_FILE_NAME = os.path.basename(__file__)
def init_contents(lines=lines, contents=contents):
for fname, _ in ALL_FILE_NAMES:
with open(fname, 'r') as f:
contents[fname] = f.read()
lines.update(dict((k, v.split('\n')) for k, v in contents.items()))
def strip_prefix(name, prefix='local_'):
if name.startswith(prefix): return name[len(prefix):]
return name
def init_fns(lines=lines, fns=fns):
header = 'Ltac pose_'
for fname, _ in ALL_FILE_NAMES:
stripped_lines = [i.strip() for i in lines[fname]]
fns[fname] = [(strip_prefix(name, 'local_'), args.strip(), name.startswith('local_'))
for line in stripped_lines
if line.startswith(header)
for name, args in re.findall('Ltac pose_([^ ]*' + ') ([A-Za-z0-9_\' ]*' + ')', line.strip())]
def get_file_root(folder=os.path.dirname(__file__), filename='Makefile'):
dir_path = os.path.realpath(folder)
while not os.path.isfile(os.path.join(dir_path, filename)) and dir_path != '/':
dir_path = os.path.realpath(os.path.join(dir_path, '..'))
if not os.path.isfile(os.path.join(dir_path, filename)):
print('ERROR: Could not find Makefile in the root of %s' % folder)
raise Exception
return dir_path
def modname_of_file_name(fname):
assert(fname[-2:] == '.v')
return 'Crypto.' + os.path.normpath(os.path.relpath(os.path.realpath(fname), os.path.join(root, 'src'))).replace(os.sep, '.')[:-2]
def split_args(name, args_str, indent=''):
args = [arg.strip() for arg in args_str.split(' ')]
pass_args = [arg for arg in args if arg.startswith('P_')]
extract_args = [arg for arg in args if arg not in pass_args and arg != name]
if name not in args:
print('Error: %s not in %s' % (name, repr(args)))
assert(name in args)
assert(len(pass_args) + len(extract_args) + 1 == len(args))
pass_args_str = ' '.join(pass_args)
if pass_args_str != '': pass_args_str += ' '
extract_args_str = ''
nl_indent = ('\n%(indent)s ' % locals())
if len(extract_args) > 0:
extract_args_str = nl_indent + nl_indent.join('let %s := Tag.get pkg TAG.%s in' % (arg, arg) for arg in extract_args)
return args, pass_args, extract_args, pass_args_str, extract_args_str
def make_add_from_pose(name, args_str, indent='', only_if=None, local=False):
args, pass_args, extract_args, pass_args_str, extract_args_str = split_args(name, args_str, indent=indent)
ret = r'''%(indent)sLtac add_%(name)s pkg %(pass_args_str)s:=''' % locals()
local_str = ('local_' if local else '')
if_not_exists_str = ''
body = r'''%(extract_args_str)s
%(indent)s let %(name)s := fresh "%(name)s" in
%(indent)s ''' % locals()
body += r'''let %(name)s := pose_%(local_str)s%(name)s %(args_str)s in
%(indent)s ''' % locals()
if only_if == 'not_exists':
assert(not local)
body += 'constr:(%(name)s)' % locals()
body = body.strip('\n ').replace('\n', '\n ')
ret += r'''
%(indent)s Tag.update_by_tac_if_not_exists
%(indent)s pkg
%(indent)s TAG.%(name)s
%(indent)s ltac:(fun _ => %(body)s).''' % locals()
else:
body += r'''Tag.%(local_str)supdate pkg TAG.%(name)s %(name)s''' % locals()
if only_if is None:
ret += body + '.\n'
else:
body = body.strip('\n ').replace('\n', '\n ')
ret += r'''
%(indent)s if_%(only_if)s
%(indent)s pkg
%(indent)s ltac:(fun _ => %(body)s)
%(indent)s ltac:(fun _ => pkg)
%(indent)s ().''' % locals()
return ret
def make_add_all(fname, indent=''):
modname, ext = os.path.splitext(os.path.basename(fname))
all_items = [(name, split_args(name, args_str, indent=indent)) for name, args_str, local in fns[fname]]
all_pass_args = []
for name, (args, pass_args, extract_args, pass_args_str, extract_args_str) in all_items:
for arg in pass_args:
if arg not in all_pass_args: all_pass_args.append(arg)
all_pass_args_str = ' '.join(all_pass_args)
if all_pass_args_str != '': all_pass_args_str += ' '
ret = r'''%(indent)sLtac add_%(modname)s_package pkg %(all_pass_args_str)s:=''' % locals()
nl_indent = ('\n%(indent)s ' % locals())
ret += nl_indent + nl_indent.join('let pkg := add_%s pkg %sin' % (name, pass_args_str)
for name, (args, pass_args, extract_args, pass_args_str, extract_args_str) in all_items)
ret += nl_indent + 'Tag.strip_local pkg.\n'
return ret
def make_if(name, indent=''):
ret = r'''%(indent)sLtac if_%(name)s pkg tac_true tac_false arg :=
%(indent)s let %(name)s := Tag.get pkg TAG.%(name)s in
%(indent)s let %(name)s := (eval vm_compute in (%(name)s : bool)) in
%(indent)s lazymatch %(name)s with
%(indent)s | true => tac_true arg
%(indent)s | false => tac_false arg
%(indent)s end.
''' % locals()
return ret
def write_if_changed(fname, value):
if os.path.isfile(fname):
with open(fname, 'r') as f:
old_value = f.read()
if old_value == value: return
value = unicode(value)
print('Writing %s...' % fname)
with io.open(fname, 'w', newline='\n') as f:
f.write(value)
def do_replace(fname, headers, new_contents):
lines = contents[fname].split('\n')
ret = []
for line in lines:
if any(header in line for header in headers):
ret.append(new_contents)
break
else:
ret.append(line)
ret = unicode('\n'.join(ret))
write_if_changed(fname, ret)
def get_existing_tags(fname, deps):
return set(name for dep in deps for name, args, local in fns[dep.replace('Package.v', '.v')])
def make_package(fname, deps, extra_modname_prefix='', extra_imports=None, prefix=None, add_package=True):
py_file_name = PY_FILE_NAME
existing_tags = get_existing_tags(fname, deps)
full_mod = modname_of_file_name(fname)
modname, ext = os.path.splitext(os.path.basename(fname))
ret = (r'''(* This file is autogenerated from %(modname)s.v by %(py_file_name)s *)
''' % locals())
if extra_imports is not None:
ret += extra_imports
ret += (r'''Require Export %(full_mod)s.
Require Import Crypto.Specific.Framework.Packages.
Require Import Crypto.Util.TagList.
''' % locals())
if prefix is not None:
ret += prefix
new_names = [name for name, args, local in fns[fname] if name not in existing_tags and not local]
if add_package: # and len(new_names) > 0:
ret += (r'''
Module Make%(extra_modname_prefix)s%(modname)sPackage (PKG : PrePackage).
Module Import Make%(extra_modname_prefix)s%(modname)sPackageInternal := MakePackageBase PKG.
''' % locals())
for name in new_names:
ret += ("\n Ltac get_%s _ := get TAG.%s." % (name, name))
ret += ("\n Notation %s := (ltac:(let v := get_%s () in exact v)) (only parsing)." % (name, name))
ret += ('\nEnd Make%(extra_modname_prefix)s%(modname)sPackage.\n' % locals())
return ret
def make_tags(fname, deps):
existing_tags = get_existing_tags(fname, deps)
new_tags = [name for name, args, local in fns[fname] if name not in existing_tags]
if len(new_tags) == 0: return ''
names = ' | '.join(new_tags)
return r'''Module TAG.
Inductive tags := %s.
End TAG.
''' % names
def write_package(fname, pkg):
pkg_name = fname[:-2] + 'Package.v'
write_if_changed(pkg_name, pkg)
def update_CurveParameters(fname='../CurveParameters.v'):
endline = contents[fname].strip().split('\n')[-1]
assert(endline.startswith('End '))
header = '(* Everything below this line autogenerated by %s *)' % PY_FILE_NAME
assert(header in contents[fname])
ret = ' %s' % header
for name, args, local in fns[fname]:
ret += '\n' + make_add_from_pose(name, args, indent=' ', local=local)
ret += '\n' + make_add_all(fname, indent=' ')
ret += endline
prefix = ''
for name in CONFIGS:
prefix += '\n' + make_if(name, indent='')
pkg = make_package(fname, [], prefix=prefix)
do_replace(fname, (header,), ret)
write_package(fname, pkg)
def make_normal_package(fname, deps, only_if=None):
prefix = ''
extra_imports = ''
for dep in deps:
extra_imports += 'Require Import %s.\n' % modname_of_file_name(dep)
prefix += '\n' + make_tags(fname, deps)
for name, args, local in fns[fname]:
prefix += '\n' + make_add_from_pose(name, args, indent='', only_if=only_if, local=local)
prefix += '\n' + make_add_all(fname, indent='')
return make_package(fname, deps, extra_imports=extra_imports, prefix=prefix)
def update_normal_package(fname, deps, only_if=None):
pkg = make_normal_package(fname, deps, only_if=only_if)
write_package(fname, pkg)
root = get_file_root()
init_contents()
init_fns()
update_CurveParameters()
for fname, (deps, only_if) in NORMAL_PACKAGE_NAMES:
update_normal_package(fname, deps, only_if=only_if)
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