# Copyright 2012-2015 The Meson development team # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import mparser import environment import coredata import dependencies import mlog import build import optinterpreter import wrap import os, sys, platform, subprocess, shutil, uuid class InterpreterException(coredata.MesonException): pass class InvalidCode(InterpreterException): pass class InvalidArguments(InterpreterException): pass class InterpreterObject(): def __init__(self): self.methods = {} def method_call(self, method_name, args, kwargs): if method_name in self.methods: return self.methods[method_name](args, kwargs) raise InvalidCode('Unknown method "%s" in object.' % method_name) class TryRunResultHolder(InterpreterObject): def __init__(self, res): super().__init__() self.res = res self.methods.update({'returncode' : self.returncode_method, 'compiled' : self.compiled_method, 'stdout' : self.stdout_method, 'stderr' : self.stderr_method, }) def returncode_method(self, args, kwargs): return self.res.returncode def compiled_method(self, args, kwargs): return self.res.compiled def stdout_method(self, args, kwargs): return self.res.stdout def stderr_method(self, args, kwargs): return self.res.stderr class RunProcess(InterpreterObject): def __init__(self, command_array, source_dir, build_dir, subdir, in_builddir=False): super().__init__() pc = self.run_command(command_array, source_dir, build_dir, subdir, in_builddir) (stdout, stderr) = pc.communicate() self.returncode = pc.returncode self.stdout = stdout.decode().replace('\r\n', '\n') self.stderr = stderr.decode().replace('\r\n', '\n') self.methods.update({'returncode' : self.returncode_method, 'stdout' : self.stdout_method, 'stderr' : self.stderr_method, }) def run_command(self, command_array, source_dir, build_dir, subdir, in_builddir): cmd_name = command_array[0] env = {'MESON_SOURCE_ROOT' : source_dir, 'MESON_BUILD_ROOT' : build_dir, 'MESON_SUBDIR' : subdir} if in_builddir: cwd = os.path.join(build_dir, subdir) else: cwd = os.path.join(source_dir, subdir) child_env = os.environ.copy() child_env.update(env) try: return subprocess.Popen(command_array, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=child_env, cwd=cwd) except FileNotFoundError: pass # Was not a command, is a program in path? exe = shutil.which(cmd_name) if exe is not None: command_array = [exe] + command_array[1:] return subprocess.Popen(command_array, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=child_env, cwd=cwd) # No? Maybe it is a script in the source tree. fullpath = os.path.join(source_dir, subdir, cmd_name) command_array = [fullpath] + command_array[1:] try: return subprocess.Popen(command_array, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=child_env, cwd=cwd) except FileNotFoundError: raise InterpreterException('Could not execute command "%s".' % cmd_name) def returncode_method(self, args, kwargs): return self.returncode def stdout_method(self, args, kwargs): return self.stdout def stderr_method(self, args, kwargs): return self.stderr class ConfigureFileHolder(InterpreterObject): def __init__(self, subdir, sourcename, targetname, configuration_data): InterpreterObject.__init__(self) self.held_object = build.ConfigureFile(subdir, sourcename, targetname, configuration_data) class ConfigurationDataHolder(InterpreterObject): def __init__(self): super().__init__() self.used = False # These objects become immutable after use in configure_file. self.held_object = build.ConfigurationData() self.methods.update({'set': self.set_method, 'set10': self.set10_method, }) def is_used(self): return self.used def mark_used(self): self.used = True def validate_args(self, args): if len(args) != 2: raise InterpreterException("Configuration set requires 2 arguments.") if self.used: raise InterpreterException("Can not set values on configuration object that has been used.") name = args[0] val = args[1] if not isinstance(name, str): raise InterpreterException("First argument to set must be a string.") return (name, val) def set_method(self, args, kwargs): (name, val) = self.validate_args(args) self.held_object.values[name] = val def set10_method(self, args, kwargs): (name, val) = self.validate_args(args) if val: self.held_object.values[name] = 1 else: self.held_object.values[name] = 0 def get(self, name): return self.held_object.values[name] def keys(self): return self.held_object.values.keys() # Interpreter objects can not be pickled so we must have # these wrappers. class ExternalProgramHolder(InterpreterObject): def __init__(self, ep): InterpreterObject.__init__(self) self.held_object = ep self.methods.update({'found': self.found_method}) def found_method(self, args, kwargs): return self.found() def found(self): return self.held_object.found() def get_command(self): return self.held_object.fullpath def get_name(self): return self.held_object.name class ExternalLibraryHolder(InterpreterObject): def __init__(self, el): InterpreterObject.__init__(self) self.held_object = el self.methods.update({'found': self.found_method}) def found(self): return self.held_object.found() def found_method(self, args, kwargs): return self.found() def get_filename(self): return self.held_object.fullpath def get_name(self): return self.held_object.name def get_compile_args(self): return self.held_object.get_compile_args() def get_link_args(self): return self.held_object.get_link_args() def get_exe_args(self): return self.held_object.get_exe_args() class GeneratorHolder(InterpreterObject): def __init__(self, interpreter, args, kwargs): super().__init__() self.interpreter = interpreter self.held_object = build.Generator(args, kwargs) self.methods.update({'process' : self.process_method}) def process_method(self, args, kwargs): if len(kwargs) > 0: raise InvalidArguments('Process does not take keyword arguments.') if isinstance(args, str): args = [args] if not isinstance(args, list): raise InvalidArguments('Argument to "process" must be a string or a list of strings.') for a in args: if not isinstance(a, str): raise InvalidArguments('A non-string object in "process" arguments.') gl = GeneratedListHolder(self) [gl.add_file(os.path.join(self.interpreter.subdir, a)) for a in args] return gl class GeneratedListHolder(InterpreterObject): def __init__(self, generator): super().__init__() self.held_object = build.GeneratedList(generator) def add_file(self, a): self.held_object.add_file(a) class Build(InterpreterObject): def __init__(self): InterpreterObject.__init__(self) self.methods.update({'name' : self.get_name_method, }) def get_name_method(self, args, kwargs): return platform.system().lower() # This currently returns data for the current environment. # It should return info for the target host. class Host(InterpreterObject): def __init__(self, envir): InterpreterObject.__init__(self) self.environment = envir self.methods.update({'name' : self.get_name_method, 'is_big_endian' : self.is_big_endian_method, }) def get_name_method(self, args, kwargs): if self.environment.is_cross_build(): return self.environment.cross_info.get('name') return platform.system().lower() def is_big_endian_method(self, args, kwargs): return sys.byteorder != 'little' class IncludeDirsHolder(InterpreterObject): def __init__(self, curdir, dirs, kwargs): super().__init__() self.held_object = build.IncludeDirs(curdir, dirs, kwargs) class Headers(InterpreterObject): def __init__(self, src_subdir, sources, kwargs): InterpreterObject.__init__(self) self.sources = sources self.source_subdir = src_subdir self.install_subdir = kwargs.get('subdir', '') self.custom_install_dir = kwargs.get('install_dir', None) if self.custom_install_dir is not None: if not isinstance(self.custom_install_dir, str): raise InterpreterException('Custom_install_dir must be a string.') def set_install_subdir(self, subdir): self.install_subdir = subdir def get_install_subdir(self): return self.install_subdir def get_source_subdir(self): return self.source_subdir def get_sources(self): return self.sources def get_custom_install_dir(self): return self.custom_install_dir class Data(InterpreterObject): def __init__(self, source_subdir, subdir, sources, kwargs): InterpreterObject.__init__(self) self.source_subdir = source_subdir self.install_subdir = subdir self.sources = sources kwsource = kwargs.get('sources', []) if not isinstance(kwsource, list): kwsource = [kwsource] self.sources += kwsource self.custom_install_dir = kwargs.get('install_dir', None) if self.custom_install_dir is not None and not isinstance(self.custom_install_dir, str): raise InterpreterException('Custom_install_dir must be a string.') def get_install_subdir(self): return self.install_subdir def get_source_subdir(self): return self.source_subdir def get_sources(self): return self.sources def get_custom_install_dir(self): return self.custom_install_dir class InstallDir(InterpreterObject): def __init__(self, source_subdir, installable_subdir, install_dir): InterpreterObject.__init__(self) self.source_subdir = source_subdir self.installable_subdir = installable_subdir self.install_dir = install_dir class Man(InterpreterObject): def __init__(self, source_subdir, sources, kwargs): InterpreterObject.__init__(self) self.source_subdir = source_subdir self.sources = sources self.validate_sources() if len(kwargs) > 1: raise InvalidArguments('Man function takes at most one keyword arguments.') self.custom_install_dir = kwargs.get('install_dir', None) if self.custom_install_dir is not None and not isinstance(self.custom_install_dir, str): raise InterpreterException('Custom_install_dir must be a string.') def validate_sources(self): for s in self.sources: num = int(s.split('.')[-1]) if num < 1 or num > 8: raise InvalidArguments('Man file must have a file extension of a number between 1 and 8') def get_custom_install_dir(self): return self.custom_install_dir def get_sources(self): return self.sources def get_source_subdir(self): return self.source_subdir class GeneratedObjectsHolder(InterpreterObject): def __init__(self, held_object): super().__init__() self.held_object = held_object class BuildTargetHolder(InterpreterObject): def __init__(self, targetttype, name, subdir, is_cross, sources, objects, environment, kwargs): super().__init__() self.held_object = targetttype(name, subdir, is_cross, sources, objects, environment, kwargs) self.methods.update({'extract_objects' : self.extract_objects_method}) def is_cross(self): return self.held_object.is_cross() def extract_objects_method(self, args, kwargs): gobjs = self.held_object.extract_objects(args) return GeneratedObjectsHolder(gobjs) class ExecutableHolder(BuildTargetHolder): def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs): super().__init__(build.Executable, name, subdir, is_cross, sources, objects, environment, kwargs) class StaticLibraryHolder(BuildTargetHolder): def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs): super().__init__(build.StaticLibrary, name, subdir, is_cross, sources, objects, environment, kwargs) class SharedLibraryHolder(BuildTargetHolder): def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs): super().__init__(build.SharedLibrary, name, subdir, is_cross, sources, objects, environment, kwargs) class JarHolder(BuildTargetHolder): def __init__(self, name, subdir, is_cross, sources, objects, environment, kwargs): super().__init__(build.Jar, name, subdir, is_cross, sources, objects, environment, kwargs) class CustomTargetHolder(InterpreterObject): def __init__(self, name, subdir, kwargs): self.held_object = build.CustomTarget(name, subdir, kwargs) def is_cross(self): return self.held_object.is_cross() def extract_objects_method(self, args, kwargs): gobjs = self.held_object.extract_objects(args) return GeneratedObjectsHolder(gobjs) class RunTargetHolder(InterpreterObject): def __init__(self, name, command, args, subdir): self.held_object = build.RunTarget(name, command, args, subdir) class Test(InterpreterObject): def __init__(self, name, exe, is_parallel, cmd_args, env, valgrind_args): InterpreterObject.__init__(self) self.name = name self.exe = exe self.is_parallel = is_parallel self.cmd_args = cmd_args self.env = env self.valgrind_args = valgrind_args def get_exe(self): return self.exe def get_name(self): return self.name class SubprojectHolder(InterpreterObject): def __init__(self, subinterpreter): super().__init__() self.subinterpreter = subinterpreter self.methods.update({ 'get_variable' : self.get_variable_method, }) def get_variable_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('Get_variable takes one argument.') varname = args[0] if not isinstance(varname, str): raise InterpreterException('Get_variable takes a string argument.') return self.subinterpreter.variables[varname] class CompilerHolder(InterpreterObject): def __init__(self, compiler, env): InterpreterObject.__init__(self) self.compiler = compiler self.environment = env self.methods.update({'compiles': self.compiles_method, 'get_id': self.get_id_method, 'sizeof': self.sizeof_method, 'has_header': self.has_header_method, 'run' : self.run_method, 'has_function' : self.has_function_method, 'has_member' : self.has_member_method, 'alignment' : self.alignment_method, 'version' : self.version_method }) def version_method(self, args, kwargs): return self.compiler.version def alignment_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('Alignment method takes exactly one positional argument.') typename = args[0] if not isinstance(typename, str): raise InterpreterException('First argument is not a string.') result = self.compiler.alignment(typename, self.environment) mlog.log('Checking for alignment of "', mlog.bold(typename), '": ', result, sep='') return result def run_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('Run method takes exactly one positional argument.') code = args[0] testname = kwargs.get('name', '') if not isinstance(testname, str): raise InterpreterException('Testname argument must be a string.') if not isinstance(code, str): raise InterpreterException('First argument is not a string.') result = self.compiler.run(code) if len(testname) > 0: if not result.compiled: h = mlog.red('DID NOT COMPILE') elif result.returncode == 0: h = mlog.green('YES') else: h = mlog.red('NO (%d)' % result.returncode) mlog.log('Checking if "', mlog.bold(testname), '" runs : ', h, sep='') return TryRunResultHolder(result) def get_id_method(self, args, kwargs): return self.compiler.get_id() def has_member_method(self, args, kwargs): if len(args) != 2: raise InterpreterException('Has_member takes exactly two arguments.') typename = args[0] if not isinstance(typename, str): raise InterpreterException('Name of type must be a string.') membername = args[1] if not isinstance(membername, str): raise InterpreterException('Name of member must be a string.') prefix = kwargs.get('prefix', '') if not isinstance(prefix, str): raise InterpreterException('Prefix argument of has_function must be a string.') had = self.compiler.has_member(typename, membername, prefix) if had: hadtxt = mlog.green('YES') else: hadtxt = mlog.red('NO') mlog.log('Checking whether type "', mlog.bold(typename), '" has member "', mlog.bold(membername), '": ', hadtxt, sep='') return had def has_function_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('Has_function takes exactly one argument.') funcname = args[0] if not isinstance(funcname, str): raise InterpreterException('Argument to has_function must be a string.') prefix = kwargs.get('prefix', '') if not isinstance(prefix, str): raise InterpreterException('Prefix argument of has_function must be a string.') had = self.compiler.has_function(funcname, prefix, self.environment) if had: hadtxt = mlog.green('YES') else: hadtxt = mlog.red('NO') mlog.log('Checking for function "', mlog.bold(funcname), '": ', hadtxt, sep='') return had def sizeof_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('Sizeof takes exactly one argument.') element = args[0] if not isinstance(element, str): raise InterpreterException('Argument to sizeof must be a string.') prefix = kwargs.get('prefix', '') if not isinstance(prefix, str): raise InterpreterException('Prefix argument of sizeof must be a string.') esize = self.compiler.sizeof(element, prefix, self.environment) mlog.log('Checking for size of "%s": %d' % (element, esize)) return esize def compiles_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('compiles method takes exactly one argument.') string = args[0] testname = kwargs.get('name', '') if not isinstance(testname, str): raise InterpreterException('Testname argument must be a string.') if not isinstance(string, str): raise InterpreterException('Argument to compiles() must be a string') result = self.compiler.compiles(string) if len(testname) > 0: if result: h = mlog.green('YES') else: h = mlog.red('NO') mlog.log('Checking if "', mlog.bold(testname), '" compiles : ', h, sep='') return result def has_header_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('has_header method takes exactly one argument.') string = args[0] if not isinstance(string, str): raise InterpreterException('Argument to has_header() must be a string') haz = self.compiler.has_header(string) if haz: h = mlog.green('YES') else: h = mlog.red('NO') mlog.log('Has header "%s":' % string, h) return haz class MesonMain(InterpreterObject): def __init__(self, build, interpreter): InterpreterObject.__init__(self) self.build = build self.interpreter = interpreter self.methods.update({'get_compiler': self.get_compiler_method, 'is_cross_build' : self.is_cross_build_method, 'has_exe_wrapper' : self.has_exe_wrapper_method, 'is_unity' : self.is_unity_method, 'is_subproject' : self.is_subproject_method, 'current_source_dir' : self.current_source_dir_method, 'current_build_dir' : self.current_build_dir_method, 'set_install_script' : self.set_install_script_method, }) def set_install_script_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('Set_install_script takes exactly one argument.') scriptbase = args[0] if not isinstance(scriptbase, str): raise InterpreterException('Set_install_script argument is not a string.') scriptfile = os.path.join(self.interpreter.environment.source_dir, self.interpreter.subdir, scriptbase) if not os.path.isfile(scriptfile): raise InterpreterException('Can not find install script %s.' % scriptbase) self.build.install_script = scriptfile def current_source_dir_method(self, args, kwargs): src = self.interpreter.environment.source_dir sub = self.interpreter.subdir if sub == '': return src return os.path.join(src, sub) def current_build_dir_method(self, args, kwargs): src = self.interpreter.environment.build_dir sub = self.interpreter.subdir if sub == '': return src return os.path.join(src, sub) def has_exe_wrapper_method(self, args, kwargs): if self.is_cross_build_method(None, None): return 'exe_wrap' in self.build.environment.cross_info return True # This is semantically confusing. def is_cross_build_method(self, args, kwargs): return self.build.environment.is_cross_build() def get_compiler_method(self, args, kwargs): if len(args) != 1: raise InterpreterException('get_compiler_method must have one and only one argument.') cname = args[0] native = kwargs.get('native', None) if native is None: if self.build.environment.is_cross_build(): native = False else: native = True if not isinstance(native, bool): raise InterpreterException('Type of "native" must be a boolean.') if native: clist = self.build.compilers else: clist = self.build.cross_compilers for c in clist: if c.get_language() == cname: return CompilerHolder(c, self.build.environment) raise InterpreterException('Tried to access compiler for unspecified language "%s".' % cname) def is_unity_method(self, args, kwargs): return self.build.environment.coredata.unity def is_subproject_method(self, args, kwargs): return self.interpreter.subproject != '' class Interpreter(): def __init__(self, build, subproject='', subdir=''): self.build = build self.subproject = subproject self.subdir = subdir self.source_root = build.environment.get_source_dir() option_file = os.path.join(self.source_root, self.subdir, 'meson_options.txt') if os.path.exists(option_file): oi = optinterpreter.OptionInterpreter(self.subproject,\ self.build.environment.cmd_line_options) oi.process(option_file) self.build.environment.merge_options(oi.options) mesonfile = os.path.join(self.source_root, self.subdir, environment.build_filename) if not os.path.isfile(mesonfile): raise InvalidArguments('Missing Meson file in %s' % mesonfile) code = open(mesonfile).read() if len(code.strip()) == 0: raise InvalidCode('Builder file is empty.') assert(isinstance(code, str)) try: self.ast = mparser.Parser(code).parse() except coredata.MesonException as me: me.file = environment.build_filename raise me self.sanity_check_ast() self.variables = {} self.builtin = {} self.builtin['build'] = Build() self.builtin['host'] = Host(build.environment) self.builtin['meson'] = MesonMain(build, self) self.environment = build.environment self.build_func_dict() self.build_def_files = [os.path.join(self.subdir, environment.build_filename)] self.coredata = self.environment.get_coredata() self.generators = [] self.visited_subdirs = {} self.global_args_frozen = False self.subprojects = {} self.subproject_stack = [] def build_func_dict(self): self.funcs = {'project' : self.func_project, 'message' : self.func_message, 'error' : self.func_error, 'executable': self.func_executable, 'dependency' : self.func_dependency, 'static_library' : self.func_static_lib, 'shared_library' : self.func_shared_lib, 'jar' : self.func_jar, 'custom_target' : self.func_custom_target, 'run_target' : self.func_run_target, 'generator' : self.func_generator, 'test' : self.func_test, 'install_headers' : self.func_install_headers, 'install_man' : self.func_install_man, 'subdir' : self.func_subdir, 'install_data' : self.func_install_data, 'install_subdir' : self.func_install_subdir, 'configure_file' : self.func_configure_file, 'include_directories' : self.func_include_directories, 'add_global_arguments' : self.func_add_global_arguments, 'find_program' : self.func_find_program, 'find_library' : self.func_find_library, 'configuration_data' : self.func_configuration_data, 'run_command' : self.func_run_command, 'gettext' : self.func_gettext, 'option' : self.func_option, 'get_option' : self.func_get_option, 'subproject' : self.func_subproject, 'pkgconfig_gen' : self.func_pkgconfig_gen, 'vcs_tag' : self.func_vcs_tag, } def get_build_def_files(self): return self.build_def_files def get_variables(self): return self.variables def sanity_check_ast(self): if not isinstance(self.ast, mparser.CodeBlockNode): raise InvalidCode('AST is of invalid type. Possibly a bug in the parser.') if len(self.ast.lines) == 0: raise InvalidCode('No statements in code.') first = self.ast.lines[0] if not isinstance(first, mparser.FunctionNode) or first.func_name != 'project': raise InvalidCode('First statement must be a call to project') def run(self): self.evaluate_codeblock(self.ast) mlog.log('Build targets in project:', mlog.bold(str(len(self.build.targets)))) def evaluate_codeblock(self, node): if node is None: return if not isinstance(node, mparser.CodeBlockNode): e = InvalidCode('Tried to execute a non-codeblock. Possibly a bug in the parser.') e.lineno = node.lineno e.colno = node.colno raise e statements = node.lines i = 0 while i < len(statements): cur = statements[i] try: self.evaluate_statement(cur) except Exception as e: if not(hasattr(e, 'lineno')): e.lineno = cur.lineno e.colno = cur.colno e.file = os.path.join(self.subdir, 'meson.build') raise e i += 1 # In THE FUTURE jump over blocks and stuff. def get_variable(self, varname): if varname in self.builtin: return self.builtin[varname] if varname in self.variables: return self.variables[varname] raise InvalidCode('Unknown variable "%s".' % varname) def set_variable(self, varname, variable): if varname in self.builtin: raise InvalidCode('Tried to overwrite internal variable "%s"' % varname) self.variables[varname] = variable def evaluate_statement(self, cur): if isinstance(cur, mparser.FunctionNode): return self.function_call(cur) elif isinstance(cur, mparser.AssignmentNode): return self.assignment(cur) elif isinstance(cur, mparser.MethodNode): return self.method_call(cur) elif isinstance(cur, mparser.StringNode): return cur.value elif isinstance(cur, mparser.BooleanNode): return cur.value elif isinstance(cur, mparser.IfClauseNode): return self.evaluate_if(cur) elif isinstance(cur, mparser.IdNode): return self.get_variable(cur.value) elif isinstance(cur, mparser.ComparisonNode): return self.evaluate_comparison(cur) elif isinstance(cur, mparser.ArrayNode): return self.evaluate_arraystatement(cur) elif isinstance(cur, mparser.NumberNode): return cur.value elif isinstance(cur, mparser.AndNode): return self.evaluate_andstatement(cur) elif isinstance(cur, mparser.OrNode): return self.evaluate_orstatement(cur) elif isinstance(cur, mparser.NotNode): return self.evaluate_notstatement(cur) elif isinstance(cur, mparser.ArithmeticNode): return self.evaluate_arithmeticstatement(cur) elif isinstance(cur, mparser.ForeachClauseNode): return self.evaluate_foreach(cur) elif self.is_elementary_type(cur): return cur else: raise InvalidCode("Unknown statement.") def validate_arguments(self, args, argcount, arg_types): if argcount is not None: if argcount != len(args): raise InvalidArguments('Expected %d arguments, got %d', argcount, len(args)) for i in range(min(len(args), len(arg_types))): wanted = arg_types[i] actual = args[i] if wanted != None: if not isinstance(actual, wanted): raise InvalidArguments('Incorrect argument type.') def validate_target_name(self, name): if name in coredata.forbidden_target_names: raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\ % name) if name in self.build.targets: raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name) def func_run_command(self, node, args, kwargs): if len(args) < 1: raise InterpreterException('Not enough arguments') cmd = args[0] cargs = args[1:] if isinstance(cmd, ExternalProgramHolder): cmd = cmd.get_command() elif not isinstance(cmd, str): raise InterpreterException('First argument is of incorrect type.') for i in cargs: if not isinstance(i, str): raise InterpreterException('Run_command arguments must be strings.') if not isinstance(cmd, list): cmd = [cmd] args = cmd + cargs in_builddir = kwargs.get('in_builddir', False) if not isinstance(in_builddir, bool): raise InterpreterException('in_builddir must be boolean.') return RunProcess(args, self.environment.source_dir, self.environment.build_dir, self.subdir, in_builddir) def func_gettext(self, nodes, args, kwargs): if len(args) != 1: raise InterpreterException('Gettext requires one positional argument (package name).') packagename = args[0] if not isinstance(packagename, str): raise InterpreterException('Gettext argument is not a string.') languages = kwargs.get('languages', None) if not isinstance(languages, list): raise InterpreterException('Argument languages must be a list of strings.') # TODO: check that elements are strings if len(self.build.pot) > 0: raise InterpreterException('More than one gettext definition currently not supported.') self.build.pot.append((packagename, languages, self.subdir)) def func_option(self, nodes, args, kwargs): raise InterpreterException('Tried to call option() in build description file. All options must be in the option file.') def func_pkgconfig_gen(self, nodes, args, kwargs): if len(args) > 0: raise InterpreterException('Pkgconfig_gen takes no positional arguments.') libs = kwargs.get('libraries', []) if not isinstance(libs, list): libs = [libs] for l in libs: if not (isinstance(l, SharedLibraryHolder) or isinstance(l, StaticLibraryHolder)): raise InterpreterException('Library argument not a library object.') subdirs = kwargs.get('subdirs', ['.']) if not isinstance(subdirs, list): subdirs = [subdirs] for h in subdirs: if not isinstance(h, str): raise InterpreterException('Header argument not string.') version = kwargs.get('version', '') if not isinstance(version, str): raise InterpreterException('Version must be a string.') name = kwargs.get('name', None) if not isinstance(name, str): raise InterpreterException('Name not specified.') filebase = kwargs.get('filebase', name) if not isinstance(filebase, str): raise InterpreterException('Filebase must be a string.') description = kwargs.get('description', None) if not isinstance(description, str): raise InterpreterException('Description is not a string.') p = build.PkgConfigGenerator(libs, subdirs, name, description, version, filebase) self.build.pkgconfig_gens.append(p) def func_subproject(self, nodes, args, kwargs): if len(args) != 1: raise InterpreterException('Subproject takes exactly one argument') dirname = args[0] if not isinstance(dirname, str): raise InterpreterException('Subproject argument must be a string') if self.subdir != '': segs = os.path.split(self.subdir) if len(segs) != 2 or segs[0] != 'subprojects': raise InterpreterException('Subprojects must be defined at the root directory.') if dirname in self.subproject_stack: fullstack = self.subproject_stack + [dirname] incpath = ' => '.join(fullstack) raise InterpreterException('Recursive include of subprojects: %s.' % incpath) if dirname == self.subprojects: return self.subprojects[dirname] subdir = os.path.join('subprojects', dirname) abs_subdir = os.path.join(self.build.environment.get_source_dir(), subdir) if not os.path.isdir(abs_subdir): r = wrap.Resolver(os.path.join(self.build.environment.get_source_dir(), 'subprojects')) resolved = r.resolve(dirname) if resolved is None: raise InterpreterException('Subproject directory does not exist and can not be downloaded.') subdir = os.path.join('subprojects', resolved) abs_subdir = os.path.join(self.build.environment.get_source_dir(), 'subprojects', subdir) os.makedirs(os.path.join(self.build.environment.get_build_dir(), subdir), exist_ok=True) self.global_args_frozen = True mlog.log('\nExecuting subproject ', mlog.bold(dirname), '.\n', sep='') subi = Interpreter(self.build, dirname, subdir) subi.subproject_stack = self.subproject_stack + [dirname] subi.run() mlog.log('\nSubproject', mlog.bold(dirname), 'finished.') self.build.subprojects[dirname] = True self.subprojects[dirname] = SubprojectHolder(subi) self.build_def_files += subi.build_def_files return self.subprojects[dirname] def func_get_option(self, nodes, args, kwargs): if len(args) != 1: raise InterpreterException('Argument required for get_option.') optname = args[0] if not isinstance(optname, str): raise InterpreterException('Argument of get_option must be a string.') if self.subproject != '': optname = self.subproject + ':' + optname try: return self.environment.get_coredata().get_builtin_option(optname) except RuntimeError: pass if optname not in self.environment.coredata.user_options: raise InterpreterException('Tried to access unknown option "%s".' % optname) return self.environment.coredata.user_options[optname].value def func_configuration_data(self, node, args, kwargs): if len(args) != 0: raise InterpreterException('configuration_data takes no arguments') return ConfigurationDataHolder() def func_project(self, node, args, kwargs): if len(args)< 2: raise InvalidArguments('Not enough arguments to project(). Needs at least the project name and one language') if len(kwargs) > 0: raise InvalidArguments('Project() does not take keyword arguments.') for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) if self.subproject == '': self.build.project_name = args[0] if self.subproject in self.build.projects: raise InvalidCode('Second call to project().') self.build.projects[self.subproject] = args[0] mlog.log('Project name: ', mlog.bold(args[0]), sep='') self.add_languages(node, args[1:]) langs = self.coredata.compilers.keys() if 'vala' in langs: if not 'c' in langs: raise InterpreterException('Compiling Vala requires a C compiler') def func_message(self, node, args, kwargs): self.validate_arguments(args, 1, [str]) mlog.log(mlog.bold('Message:'), args[0]) def func_error(self, node, args, kwargs): self.validate_arguments(args, 1, [str]) raise InterpreterException('Error encountered: ' + args[0]) def add_languages(self, node, args): is_cross = self.environment.is_cross_build() for lang in args: lang = lang.lower() if lang in self.coredata.compilers: comp = self.coredata.compilers[lang] cross_comp = self.coredata.cross_compilers.get(lang, None) else: cross_comp = None if lang == 'c': comp = self.environment.detect_c_compiler(False) if is_cross: cross_comp = self.environment.detect_c_compiler(True) elif lang == 'cpp': comp = self.environment.detect_cpp_compiler(False) if is_cross: cross_comp = self.environment.detect_cpp_compiler(True) elif lang == 'objc': comp = self.environment.detect_objc_compiler(False) if is_cross: cross_comp = self.environment.detect_objc_compiler(True) elif lang == 'objcpp': comp = self.environment.detect_objcpp_compiler(False) if is_cross: cross_comp = self.environment.detect_objcpp_compiler(True) elif lang == 'java': comp = self.environment.detect_java_compiler() if is_cross: cross_comp = comp # Java is platform independent. elif lang == 'cs': comp = self.environment.detect_cs_compiler() if is_cross: cross_comp = comp # C# is platform independent. elif lang == 'vala': comp = self.environment.detect_vala_compiler() if is_cross: cross_comp = comp # Vala is too (I think). elif lang == 'rust': comp = self.environment.detect_rust_compiler() if is_cross: cross_comp = comp # FIXME, probably not correct. elif lang == 'fortran': comp = self.environment.detect_fortran_compiler(False) if is_cross: cross_comp = self.environment.detect_fortran_compiler(True) else: raise InvalidCode('Tried to use unknown language "%s".' % lang) comp.sanity_check(self.environment.get_scratch_dir()) self.coredata.compilers[lang] = comp if cross_comp is not None: self.coredata.cross_compilers[lang] = cross_comp mlog.log('Native %s compiler: ' % lang, mlog.bold(' '.join(comp.get_exelist())), ' (%s %s)' % (comp.id, comp.version), sep='') if not comp.get_language() in self.coredata.external_args: (ext_compile_args, ext_link_args) = environment.get_args_from_envvars(comp.get_language()) self.coredata.external_args[comp.get_language()] = ext_compile_args self.coredata.external_link_args[comp.get_language()] = ext_link_args self.build.add_compiler(comp) if is_cross: mlog.log('Cross %s compiler: ' % lang, mlog.bold(' '.join(cross_comp.get_exelist())), ' (%s %s)' % (cross_comp.id, cross_comp.version), sep='') self.build.add_cross_compiler(cross_comp) def func_find_program(self, node, args, kwargs): self.validate_arguments(args, 1, [str]) required = kwargs.get('required', True) if not isinstance(required, bool): raise InvalidArguments('"required" argument must be a boolean.') exename = args[0] if exename in self.coredata.ext_progs and\ self.coredata.ext_progs[exename].found(): return ExternalProgramHolder(self.coredata.ext_progs[exename]) # Search for scripts relative to current subdir. search_dir = os.path.join(self.environment.get_source_dir(), self.subdir) extprog = dependencies.ExternalProgram(exename, search_dir=search_dir) progobj = ExternalProgramHolder(extprog) self.coredata.ext_progs[exename] = extprog if required and not progobj.found(): raise InvalidArguments('Program "%s" not found.' % exename) return progobj def func_find_library(self, node, args, kwargs): self.validate_arguments(args, 1, [str]) required = kwargs.get('required', True) if not isinstance(required, bool): raise InvalidArguments('"required" argument must be a boolean.') libname = args[0] if libname in self.coredata.ext_libs and\ self.coredata.ext_libs[libname].found(): return ExternalLibraryHolder(self.coredata.ext_libs[libname]) result = self.environment.find_library(libname) extlib = dependencies.ExternalLibrary(libname, result) libobj = ExternalLibraryHolder(extlib) self.coredata.ext_libs[libname] = extlib if required and not libobj.found(): raise InvalidArguments('External library "%s" not found.' % libname) return libobj def func_dependency(self, node, args, kwargs): self.validate_arguments(args, 1, [str]) name = args[0] identifier = dependencies.get_dep_identifier(name, kwargs) if identifier in self.coredata.deps: dep = self.coredata.deps[identifier] else: dep = dependencies.Dependency() # Returns always false for dep.found() if not dep.found(): dep = dependencies.find_external_dependency(name, kwargs) self.coredata.deps[identifier] = dep return dep def func_executable(self, node, args, kwargs): return self.build_target(node, args, kwargs, ExecutableHolder) def func_static_lib(self, node, args, kwargs): return self.build_target(node, args, kwargs, StaticLibraryHolder) def func_shared_lib(self, node, args, kwargs): return self.build_target(node, args, kwargs, SharedLibraryHolder) def func_jar(self, node, args, kwargs): return self.build_target(node, args, kwargs, JarHolder) def func_vcs_tag(self, node, args, kwargs): fallback = kwargs.get('fallback', None) if not isinstance(fallback, str): raise InterpreterException('Keyword argument must exist and be a string.') del kwargs['fallback'] scriptfile = os.path.join(os.path.split(__file__)[0], 'vcstagger.py') kwargs['command'] = [sys.executable, scriptfile, '@INPUT@', '@OUTPUT@', fallback] kwargs['build_always'] = True return self.func_custom_target(node, ['vcstag'], kwargs) def func_custom_target(self, node, args, kwargs): if len(args) != 1: raise InterpreterException('Incorrect number of arguments') name = args[0] if not isinstance(name, str): raise InterpreterException('Argument must be a string.') if name in coredata.forbidden_target_names: raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\ % name) if name in self.build.targets: raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name) tg = CustomTargetHolder(name, self.subdir, kwargs) self.build.targets[name] = tg.held_object return tg def func_vcs_info(self, nodes, args, kwargs): # required: none; optional: name, vcs_cmd, vcs_dir, output, build_always name = args[0] if len(args) > 0 else 'vcs_info' self.validate_target_name(name) vcs_dir = kwargs.pop('vcs_dir', self.environment.get_source_dir()) vcs_cmd = None vcs_systems = [ dict(name = 'git', cmd = 'git', get_rev = 'git describe', dep = '.git/logs/HEAD', get_root = 'git rev-parse --show-toplevel'), dict(name = 'mercurial', cmd = 'hg', get_rev = 'hg id -n', dep = '.hg/dirstate', get_root = 'hg root'), # dict(name = 'subversion', cmd = 'svn', get_rev = 'svn info', dep = '.svn/wc.db', get_root = 'svn info'), ] for vcs in vcs_systems: if vcs['cmd'] and shutil.which(vcs['cmd']): vcs_root = subprocess.Popen(vcs['get_root'], shell=True, cwd=vcs_dir, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL).communicate()[0].decode().strip() vcs_dep = os.path.join(vcs_root, vcs['dep']) if os.path.exists(vcs_dep): vcs_cmd = vcs['get_rev'] kwargs['input'] = vcs_dep mlog.log('Found %s repository at %s' % (vcs['name'], vcs_root)) break vcs_cmd = kwargs.pop('vcs_cmd', vcs_cmd ) if not vcs_cmd: raise InvalidArguments('Could not autodetect vcs system and no custom vcs_cmd was specified.') kwargs.setdefault('output', name) script = os.path.join(self.environment.get_script_dir(), 'meson_vcs_info.py') kwargs['command'] = [script, 'update', vcs_cmd, vcs_dir, '@OUTPUT0@'] tg = CustomTargetHolder(name, self.subdir, kwargs) self.build.targets[name] = tg.held_object return tg def func_vcs_configure(self, nodes, args, kwargs): # required: name, input, vcs_info; optional: output, config_var_name name = args[0] self.validate_target_name(name) kwargs.setdefault('input', args[1] if len(args)>1 else None) vcs_info = kwargs.pop('vcs_info', None) if not vcs_info: raise InvalidArguments('Missing argument "vcs_info".') if not isinstance(vcs_info, CustomTargetHolder): raise InterpreterException('Argument "vcs_info" is not of type vcs_info') vcs_info = vcs_info.held_object config_var_name = kwargs.pop('config_var_name', 'VCS_INFO') kwargs.setdefault('output', name) script = os.path.join(self.environment.get_script_dir(), 'meson_vcs_info.py') kwargs['command'] = [script, 'configure', vcs_info, config_var_name, '@INPUT0@', '@OUTPUT0@'] tg = CustomTargetHolder(name, self.subdir, kwargs) self.build.targets[name] = tg.held_object return tg def func_run_target(self, node, args, kwargs): if len(args) < 2: raise InterpreterException('Incorrect number of arguments') for i in args: if not isinstance(i, str): raise InvalidArguments('Argument is not a string') name = args[0] if name in coredata.forbidden_target_names: raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\ % name) if name in self.build.targets: raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name) command = args[1] cmd_args = args[2:] tg = RunTargetHolder(name, command, cmd_args, self.subdir) self.build.targets[name] = tg.held_object return tg def func_generator(self, node, args, kwargs): gen = GeneratorHolder(self, args, kwargs) self.generators.append(gen) return gen def func_test(self, node, args, kwargs): if len(args) != 2: raise InterpreterException('Incorrect number of arguments') if not isinstance(args[0], str): raise InterpreterException('First argument of test must be a string.') if not isinstance(args[1], ExecutableHolder) and not isinstance(args[1], JarHolder): raise InterpreterException('Second argument must be executable.') par = kwargs.get('is_parallel', True) if not isinstance(par, bool): raise InterpreterException('Keyword argument is_parallel must be a boolean.') cmd_args = kwargs.get('args', []) if not isinstance(cmd_args, list): cmd_args = [cmd_args] for i in cmd_args: if not isinstance(i, str): raise InterpreterException('Command line arguments must be strings') envlist = kwargs.get('env', []) if not isinstance(envlist, list): envlist = [envlist] env = {} for e in envlist: if '=' not in e: raise InterpreterException('Env var definition must be of type key=val.') (k, val) = e.split('=', 1) k = k.strip() val = val.strip() if ' ' in k: raise InterpreterException('Env var key must not have spaces in it.') env[k] = val valgrind_args = kwargs.get('valgrind_args', []) if not isinstance(valgrind_args, list): valgrind_args = [valgrind_args] for a in valgrind_args: if not isinstance(a, str): raise InterpreterException('Valgrind_arg not a string.') t = Test(args[0], args[1].held_object, par, cmd_args, env, valgrind_args) self.build.tests.append(t) mlog.debug('Adding test "', mlog.bold(args[0]), '".', sep='') def func_install_headers(self, node, args, kwargs): args = self.flatten(args) for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) h = Headers(self.subdir, args, kwargs) self.build.headers.append(h) return h def func_install_man(self, node, args, kwargs): for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) m = Man(self.subdir, args, kwargs) self.build.man.append(m) return m def func_subdir(self, node, args, kwargs): if len(kwargs) > 0: raise InvalidArguments('subdir command takes no keyword arguments.') self.validate_arguments(args, 1, [str]) if '..' in args[0]: raise InvalidArguments('Subdir contains ..') if self.subdir == '' and args[0] == 'subprojects': raise InvalidArguments('Must not go into subprojects dir with subdir(), use subproject() instead.') prev_subdir = self.subdir subdir = os.path.join(prev_subdir, args[0]) if subdir in self.visited_subdirs: raise InvalidArguments('Tried to enter directory "%s", which has already been visited.'\ % subdir) self.visited_subdirs[subdir] = True self.subdir = subdir try: os.mkdir(os.path.join(self.environment.build_dir, subdir)) except FileExistsError: pass buildfilename = os.path.join(self.subdir, environment.build_filename) self.build_def_files.append(buildfilename) absname = os.path.join(self.environment.get_source_dir(), buildfilename) if not os.path.isfile(absname): raise InterpreterException('Nonexistant build def file %s.' % buildfilename) code = open(absname).read() assert(isinstance(code, str)) try: codeblock = mparser.Parser(code).parse() except coredata.MesonException as me: me.file = buildfilename raise me self.evaluate_codeblock(codeblock) self.subdir = prev_subdir def func_install_data(self, node, args, kwargs): if len(args ) < 1: raise InvalidArguments('Data function must have at least one argument: the subdirectory.') for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) data = Data(self.subdir, args[0], args[1:], kwargs) self.build.data.append(data) return data def func_install_subdir(self, node, args, kwargs): if len(args ) != 1: raise InvalidArguments('Install_subdir requires exactly one argument.') for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) if not 'install_dir' in kwargs: raise InvalidArguments('Missing keyword argument install_dir') install_dir = kwargs['install_dir'] if not isinstance(install_dir, str): raise InvalidArguments('Keyword argument install_dir not a string.') idir = InstallDir(self.subdir, args[0], install_dir) self.build.install_dirs.append(idir) return idir def func_configure_file(self, node, args, kwargs): if len(args) > 0: raise InterpreterException("configure_file takes only keyword arguments.") if not 'input' in kwargs: raise InterpreterException('Required keyword argument "input" not defined.') if not 'output' in kwargs: raise InterpreterException('Required keyword argument "output" not defined.') if 'configuration' in kwargs: inputfile = kwargs['input'] output = kwargs['output'] conf = kwargs['configuration'] if not isinstance(conf, ConfigurationDataHolder): raise InterpreterException('Argument "configuration" is not of type configuration_data') conffile = os.path.join(self.subdir, inputfile) self.build_def_files.append(conffile) c = ConfigureFileHolder(self.subdir, inputfile, output, conf.held_object) self.build.configure_files.append(c.held_object) conf.mark_used() elif 'command' in kwargs: res = self.func_run_command(node, kwargs['command'], {}) if res.returncode != 0: raise InterpreterException('Running configure command failed.\n%s\n%s' % (res.stdout, res.stderr)) else: raise InterpreterException('Configure_file must have either "configuration" or "command".') def func_include_directories(self, node, args, kwargs): absbase = os.path.join(self.environment.get_source_dir(), self.subdir) for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) absdir = os.path.join(absbase, a) if not os.path.isdir(absdir): raise InvalidArguments('Include dir %s does not exist.' % a) i = IncludeDirsHolder(self.subdir, args, kwargs) return i def func_add_global_arguments(self, node, args, kwargs): for a in args: if not isinstance(a, str): raise InvalidArguments('Argument %s is not a string.' % str(a)) if self.subproject != '': raise InvalidCode('Global arguments can not be set in subprojects because there is no way to make that reliable.') if self.global_args_frozen: raise InvalidCode('Tried to set global arguments after they have become immutable.') if not 'language' in kwargs: raise InvalidCode('Missing language definition in add_global_arguments') lang = kwargs['language'].lower() if lang in self.build.global_args: self.build.global_args[lang] += args else: self.build.global_args[lang] = args def flatten(self, args): if isinstance(args, mparser.StringNode): return args.value if isinstance(args, str): return args if isinstance(args, InterpreterObject): return args result = [] for a in args: if isinstance(a, list): rest = self.flatten(a) result = result + rest elif isinstance(a, mparser.StringNode): result.append(a.value) else: result.append(a) return result def build_target(self, node, args, kwargs, targetclass): args = self.flatten(args) name = args[0] sources = args[1:] if self.environment.is_cross_build(): if kwargs.get('native', False): is_cross = False else: is_cross = True else: is_cross = False if name in coredata.forbidden_target_names: raise InvalidArguments('Target name "%s" is reserved for Meson\'s internal use. Please rename.'\ % name) try: kw_src = self.flatten(kwargs['sources']) if not isinstance(kw_src, list): kw_src = [kw_src] except KeyError: kw_src = [] sources += kw_src objs = self.flatten(kwargs.get('objects', [])) if not isinstance(objs, list): objs = [objs] if name in self.build.targets: raise InvalidCode('Tried to create target "%s", but a target of that name already exists.' % name) self.check_sources_exist(os.path.join(self.source_root, self.subdir), sources) l = targetclass(name, self.subdir, is_cross, sources, objs, self.environment, kwargs) self.build.targets[name] = l.held_object if name not in self.coredata.target_guids: self.coredata.target_guids[name] = str(uuid.uuid4()).upper() if self.environment.is_cross_build() and l.is_cross: txt = ' cross build ' else: txt = ' build ' displayname = os.path.join(l.held_object.subdir, name) self.global_args_frozen = True return l def check_sources_exist(self, subdir, sources): for s in sources: if not isinstance(s, str): continue # This means a generated source and they always exist. fname = os.path.join(subdir, s) if not os.path.isfile(fname): raise InterpreterException('Tried to add non-existing source %s.' % s) def function_call(self, node): func_name = node.func_name (posargs, kwargs) = self.reduce_arguments(node.args) if func_name in self.funcs: return self.funcs[func_name](node, posargs, kwargs) else: raise InvalidCode('Unknown function "%s".' % func_name) def is_assignable(self, value): if isinstance(value, InterpreterObject) or \ isinstance(value, dependencies.Dependency) or\ isinstance(value, str) or\ isinstance(value, int) or \ isinstance(value, list): return True return False def assignment(self, node): assert(isinstance(node, mparser.AssignmentNode)) var_name = node.var_name if not isinstance(var_name, str): raise InvalidArguments('Tried to assign value to a non-variable.') value = self.evaluate_statement(node.value) if value is None: raise InvalidCode('Can not assign None to variable.') value = self.to_native(value) if not self.is_assignable(value): raise InvalidCode('Tried to assign an invalid value to variable.') self.set_variable(var_name, value) return value def reduce_arguments(self, args): assert(isinstance(args, mparser.ArgumentNode)) if args.incorrect_order(): raise InvalidArguments('All keyword arguments must be after positional arguments.') reduced_pos = [self.evaluate_statement(arg) for arg in args.arguments] reduced_kw = {} for key in args.kwargs.keys(): if not isinstance(key, str): raise InvalidArguments('Keyword argument name is not a string.') a = args.kwargs[key] reduced_kw[key] = self.evaluate_statement(a) return (reduced_pos, reduced_kw) def string_method_call(self, obj, method_name, args): obj = self.to_native(obj) if method_name == 'strip': return obj.strip() elif method_name == 'format': return self.format_string(obj, args) elif method_name == 'split': (posargs, _) = self.reduce_arguments(args) if len(posargs) > 1: raise InterpreterException('Split() must have at most one argument.') elif len(posargs) == 1: s = posargs[0] if not isinstance(s, str): raise InterpreterException('Split() argument must be a string') return obj.split(s) else: return obj.split() raise InterpreterException('Unknown method "%s" for a string.' % method_name) def to_native(self, arg): if isinstance(arg, mparser.StringNode) or \ isinstance(arg, mparser.NumberNode) or \ isinstance(arg, mparser.BooleanNode): return arg.value return arg def format_string(self, templ, args): templ = self.to_native(templ) if isinstance(args, mparser.ArgumentNode): args = args.arguments for (i, arg) in enumerate(args): arg = self.to_native(self.evaluate_statement(arg)) if isinstance(arg, bool): # Python boolean is upper case. arg = str(arg).lower() templ = templ.replace('@{}@'.format(i), str(arg)) return templ def method_call(self, node): invokable = node.source_object if isinstance(invokable, mparser.IdNode): object_name = invokable.value obj = self.get_variable(object_name) else: obj = self.evaluate_statement(invokable) method_name = node.name if method_name == 'extract_objects' and self.environment.coredata.unity: raise InterpreterException('Single object files can not be extracted in Unity builds.') args = node.args if isinstance(obj, mparser.StringNode): obj = obj.get_value() if isinstance(obj, str): return self.string_method_call(obj, method_name, args) if isinstance(obj, list): return self.array_method_call(obj, method_name, self.reduce_arguments(args)[0]) if not isinstance(obj, InterpreterObject): raise InvalidArguments('Variable "%s" is not callable.' % object_name) (args, kwargs) = self.reduce_arguments(args) return obj.method_call(method_name, args, kwargs) def array_method_call(self, obj, method_name, args): if method_name == 'contains': return self.check_contains(obj, args) elif method_name == 'get': index = args[0] if not isinstance(index, int): raise InvalidArguments('Array index must be a number.') if index < 0 or index >= len(obj): raise InvalidArguments('Array index %s is out of bounds for array of size %d.' % (index, len(obj))) return obj[index] raise InterpreterException('Arrays do not have a method called "%s".' % method_name) def check_contains(self, obj, args): if len(args) != 1: raise InterpreterException('Contains method takes exactly one argument.') item = args[0] for element in obj: if isinstance(element, list): found = self.check_contains(element, args) if found: return True try: if element == item: return True except Exception: pass return False def evaluate_if(self, node): assert(isinstance(node, mparser.IfClauseNode)) for i in node.ifs: result = self.evaluate_statement(i.condition) if not(isinstance(result, bool)): print(result) raise InvalidCode('If clause does not evaluate to true or false.') if result: self.evaluate_codeblock(i.block) return if not isinstance(node.elseblock, mparser.EmptyNode): self.evaluate_codeblock(node.elseblock) def evaluate_foreach(self, node): assert(isinstance(node, mparser.ForeachClauseNode)) varname = node.varname.value items = self.evaluate_statement(node.items) if not isinstance(items, list): raise InvalidArguments('Items of foreach loop is not an array') for item in items: self.set_variable(varname, item) self.evaluate_codeblock(node.block) def is_elementary_type(self, v): if isinstance(v, (int, float, str, bool, list)): return True return False def evaluate_comparison(self, node): v1 = self.evaluate_statement(node.left) v2 = self.evaluate_statement(node.right) if self.is_elementary_type(v1): val1 = v1 else: val1 = v1.value if self.is_elementary_type(v2): val2 = v2 else: val2 = v2.value if node.ctype == '==': return val1 == val2 elif node.ctype == '!=': return val1 != val2 else: raise InvalidCode('You broke me.') def evaluate_andstatement(self, cur): l = self.evaluate_statement(cur.left) if isinstance(l, mparser.BooleanNode): l = l.value if not isinstance(l, bool): raise InterpreterException('First argument to "and" is not a boolean.') if not l: return False r = self.evaluate_statement(cur.right) if isinstance(r, mparser.BooleanNode): r = r.value if not isinstance(r, bool): raise InterpreterException('Second argument to "and" is not a boolean.') return r def evaluate_orstatement(self, cur): l = self.evaluate_statement(cur.left) if isinstance(l, mparser.BooleanNode): l = l.get_value() if not isinstance(l, bool): raise InterpreterException('First argument to "or" is not a boolean.') if l: return True r = self.evaluate_statement(cur.right) if isinstance(r, mparser.BooleanNode): r = r.get_value() if not isinstance(r, bool): raise InterpreterException('Second argument to "or" is not a boolean.') return r def evaluate_notstatement(self, cur): v = self.evaluate_statement(cur.value) if isinstance(v, mparser.BooleanNode): v = v.value if not isinstance(v, bool): raise InterpreterException('Argument to "not" is not a boolean.') return not v def evaluate_arithmeticstatement(self, cur): l = self.to_native(self.evaluate_statement(cur.left)) r = self.to_native(self.evaluate_statement(cur.right)) if cur.operation == 'add': try: return l + r except Exception as e: raise InvalidCode('Invalid use of addition: ' + str(e)) elif cur.operation == 'sub': if not isinstance(l, int) or not isinstance(r, int): raise InvalidCode('Subtraction works only with integers.') return l - r elif cur.operation == 'mul': if not isinstance(l, int) or not isinstance(r, int): raise InvalidCode('Multiplication works only with integers.') return l * r elif cur.operation == 'div': if not isinstance(l, int) or not isinstance(r, int): raise InvalidCode('Division works only with integers.') return l // r else: raise InvalidCode('You broke me.') def evaluate_arraystatement(self, cur): (arguments, kwargs) = self.reduce_arguments(cur.args) if len(kwargs) > 0: raise InvalidCode('Keyword arguments are invalid in array construction.') return arguments