How to use exports_map method in localstack

Best Python code snippet using localstack_python

test_wasm.py

Source:test_wasm.py

1import re2from regexes import (3    CALL_REGEX, CALL_INDIRECT_REGEX,4    ELEM_REGEX, EXPORT_REGEX,5    FUNC_REGEX, GLOBAL_REGEX,6    IMPORT_REGEX, START_REGEX, TYPE_REGEX7)8from wasm import WASM9class TestWASM(WASM):10    def __init__(self):11        super(TestWASM, self).__init__()12    def shift_types(self, max_type):13        type_map = {}14        new_types = []15        for t in self.types:16            match = re.search(TYPE_REGEX, t)17            type_num = match.group(2)18            new_type_num = int(type_num) + int(max_type) + 119            type_map[type_num] = new_type_num20            new_type = re.sub(TYPE_REGEX, lambda x: f'{x.group(1)}{new_type_num}{x.group(3)}', t)21            new_types.append(new_type)22        self.types = new_types23        return type_map24    def shift_imports(self, type_map, max_import):25        new_imports = []26        for i in self.imports:27            m = re.search(IMPORT_REGEX, i)28            type_num = m.group(8)29            new_type_num = type_map[type_num]30            func_num = m.group(6)31            new_func_num = int(max_import) + 132            self.function_symbol_map[func_num] = new_func_num33            sub_func = lambda x: f'{m.group(1)}{m.group(2)}{m.group(3)}{m.group(4)}{m.group(5)}{new_func_num}{m.group(7)}{new_type_num}{m.group(9)}'34            new_import = re.sub(IMPORT_REGEX, sub_func, i)35            new_imports.append(new_import)36            max_import = int(max_import) + 137        self.imports = new_imports38        return max_import39    def shift_funcs(self, type_map, max_func_num):40        def get_type_num(f):41            return re.search(FUNC_REGEX, f).group(4)42        def get_func_num(f):43            return re.search(FUNC_REGEX, f).group(2)44        def inject_new_type_num(f, new_type_num):45            sub_func = lambda x: f'{x.group(1)}{x.group(2)}{x.group(3)}{new_type_num}{x.group(5)}'46            return re.sub(FUNC_REGEX, sub_func, f)47        def inject_new_func_num(f, new_func_num):48            sub_func = lambda x: f'{x.group(1)}{new_func_num}{x.group(3)}{x.group(4)}{x.group(5)}'49            return re.sub(FUNC_REGEX, sub_func, f)50        new_funcs = []51        for f in self.funcs:52            type_num = get_type_num(f)53            new_type_num = type_map[type_num]54            func_num = get_func_num(f)55            new_func_num = int(max_func_num) + 156            self.function_symbol_map[func_num] = new_func_num57            max_func_num = new_func_num58            new_func = inject_new_func_num(f, new_func_num)59            new_func = inject_new_type_num(new_func, new_type_num)60            new_funcs.append(new_func)61        self.funcs = new_funcs62        return max_func_num63    def shift_calls(self, type_map):64        new_funcs = []65        for f in self.funcs:66            func = ''67            for l in f.split('\n'):68                if re.search(CALL_INDIRECT_REGEX, l):69                    func += self.shift_call_indirect(l, type_map) + '\n'70                elif re.search(CALL_REGEX, l):71                    func += self.shift_call(l) + '\n'72                else:73                    func += l + '\n'74            new_funcs.append(func)75        self.funcs = new_funcs76    def shift_call(self, line):77        match = re.search(CALL_REGEX, line)78        func_num = match.group(2)79        new_num = self.function_symbol_map[func_num]80        new_call = re.sub(CALL_REGEX, lambda x: f'{x.group(1)}{new_num}{x.group(3)}', line)81        return new_call82    def shift_call_indirect(self, line, type_map):83        match = re.search(CALL_INDIRECT_REGEX, line)84        type_num = match.group(2)85        new_num = type_map[type_num]86        new_call = re.sub(CALL_INDIRECT_REGEX, lambda x: f'{x.group(1)}{new_num}{x.group(3)}', line)87        return new_call88    def shift_start(self):89        if self.start:90            match = re.search(START_REGEX, self.start)91            func_num = match.group(2)92            new_num = self.function_symbol_map[func_num]93            new_start = re.sub(START_REGEX, lambda x: f'{x.group(1)}{new_num}{x.group(3)}', self.start)94            self.start = new_start95    def shift_exports(self):96        def get_func_num(f):97            return re.search(EXPORT_REGEX, f).group(4)98        def inject_new_func_num(f, new_func_num):99            return re.sub(EXPORT_REGEX, lambda x: f'{x.group(1)}{x.group(2)}{x.group(3)}{new_func_num}{x.group(5)}', f)100        def normalize(val):101            ret_val = '_'102            for i in range(0, len(val)):103                ret_val += '_' if val[i] == '-' or val[i] == '.' else val[i]104            return ret_val105        new_exports = []106        exports_map = {}107        for e in self.exports:108            if e.find('(func ') > -1:109                func_num = get_func_num(e)110                new_func_num = self.function_symbol_map[func_num]111                new_export = inject_new_func_num(e, new_func_num)112                new_exports.append(new_export)113            else:114                new_exports.append(e)115            exports_map[normalize(re.search(EXPORT_REGEX, e).group(2))] = new_func_num116        self.exports = new_exports117        return exports_map118    def shift_elems(self):119        new_elems = []120        for e in self.elems:121            match = re.search(ELEM_REGEX, e)122            new_numbers = []123            if match:124                numbers = match.group(2)125                for n in numbers.split():126                    shifted_num = self.function_symbol_map[n]127                    new_numbers.append(str(shifted_num))128            new_numbers_str = ' '.join(new_numbers)129            sub_func = lambda x: f'{x.group(1)}{new_numbers_str}{x.group(3)}'130            new_elems.append(re.sub(ELEM_REGEX, sub_func, e))131        self.elems = new_elems132    def get_max_global(self):133        max_global_var = -1134        for g in self.global_vars:135            match = re.search(GLOBAL_REGEX, g)136            max_global_var = match.group(2)...

jinja_utils.py

Source:jinja_utils.py

1#!/usr/bin/env python2# Copyright (c) 2007 fuel-ccp3# Licensed under the Apache License Version 2.0.4# https://github.com/openstack/fuel-ccp5import os6import re7import jinja28from six.moves.urllib import parse as urlparse9# pylint: disable=E021110class SilentUndefined(jinja2.Undefined):11    def _fail_with_undefined_error(self, *args, **kwargs):12        return ''13    def _new(*args, **kwargs):14        return SilentUndefined()15    __call__ = __getitem__ = __getattr__ = _new16    __add__ = __radd__ = __mul__ = __rmul__ = __div__ = __rdiv__ = \17        __truediv__ = __rtruediv__ = __floordiv__ = __rfloordiv__ = \18        __mod__ = __rmod__ = __pos__ = __neg__ = __lt__ = __le__ = \19        __gt__ = __ge__ = __int__ = __float__ = __complex__ = __pow__ = \20        __rpow__ = _fail_with_undefined_error21def get_host(path):22    return urlparse.urlsplit(path).netloc23def j2raise(msg):24    raise AssertionError(msg)25def jinja_render(path, context, functions=(), ignore_undefined=False):26    kwargs = {}27    if ignore_undefined:28        kwargs['undefined'] = SilentUndefined29    else:30        kwargs['undefined'] = jinja2.StrictUndefined31    env = jinja2.Environment(loader=jinja2.FileSystemLoader(32        os.path.dirname(path)), **kwargs)33    env.filters['host'] = get_host34    # FIXME: gethostbyname should be only used during config files render35    env.filters['gethostbyname'] = lambda x: x36    for func in functions:37        env.globals[func.__name__] = func38    env.globals['raise_exception'] = j2raise39    content = env.get_template(os.path.basename(path)).render(context)40    return content41def generate_jinja_imports(exports_map):42    """Generate a files header of jinja imports from exports map"""43    imports = []  # list of j2 imports: "{% import 'msg.j2' as msg %}"44    for export_key in exports_map:45        name = exports_map[export_key]['name']  # real filename46        import_as, extension = os.path.splitext(name)  # remove file extension47        if not re.match('[a-zA-Z_][a-zA-Z0-9_]*', import_as):48            raise RuntimeError('Wrong templates file naming: the %s cannot be '49                               'imported by jinja with %s name. Please use '50                               'python compatible naming' % (name, import_as))51        imports.append(52            "{% import '" + name + "' as " + import_as + " with context %}")...

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