Exemple #1
0
    def _run(self, flags, *args) -> Tuple[int, Program]:
        # when multiple arguments are passed, concatenate them into a serialized
        # buffer. Some arguments may already be in serialized form (e.g.
        # SerializedProgram) so we don't want to de-serialize those just to
        # serialize them back again. This is handled by _serialize()
        serialized_args = b""
        if len(args) > 1:
            # when we have more than one argument, serialize them into a list
            for a in args:
                serialized_args += b"\xff"
                serialized_args += _serialize(a)
            serialized_args += b"\x80"
        else:
            serialized_args += _serialize(args[0])

        max_cost = 0
        # TODO: move this ugly magic into `clvm` "dialects"
        native_opcode_names_by_opcode = dict(
            ("op_%s" % OP_REWRITE.get(k, k), op)
            for op, k in KEYWORD_FROM_ATOM.items() if k not in "qa.")
        cost, ret = deserialize_and_run_program(
            self._buf,
            serialized_args,
            KEYWORD_TO_ATOM["q"][0],
            KEYWORD_TO_ATOM["a"][0],
            native_opcode_names_by_opcode,
            max_cost,
            flags,
        )
        # TODO this could be parsed lazily
        return cost, Program.to(sexp_from_stream(io.BytesIO(ret), SExp.to))
Exemple #2
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def disassemble_to_ir(sexp, allow_keyword=None):
    if is_ir(sexp) and allow_keyword is not False:
        return ir_cons(ir_symbol("ir"), sexp)

    if sexp.nullp():
        return ir_null()

    if sexp.listp():
        if sexp.first().listp() or allow_keyword is None:
            allow_keyword = True
        v0 = disassemble_to_ir(sexp.first(), allow_keyword=allow_keyword)
        v1 = disassemble_to_ir(sexp.rest(), allow_keyword=False)
        return to_sexp_f((Type.CONS, (v0, v1)))

    as_atom = sexp.as_atom()
    if allow_keyword:
        v = KEYWORD_FROM_ATOM.get(as_atom)
        if v is not None and v != '.':
            return ir_symbol(v)

    return to_sexp_f((type_for_atom(as_atom), as_atom))
Exemple #3
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    def run_as_generator(self, max_cost: int, flags: int, *args) -> Tuple[Optional[int], List[Any], int]:
        serialized_args = b""
        if len(args) > 1:
            # when we have more than one argument, serialize them into a list
            for a in args:
                serialized_args += b"\xff"
                serialized_args += _serialize(a)
            serialized_args += b"\x80"
        else:
            serialized_args += _serialize(args[0])

        native_opcode_names_by_opcode = dict(
            ("op_%s" % OP_REWRITE.get(k, k), op) for op, k in KEYWORD_FROM_ATOM.items() if k not in "qa."
        )
        err, npc_list, cost = run_generator(
            self._buf,
            serialized_args,
            KEYWORD_TO_ATOM["q"][0],
            KEYWORD_TO_ATOM["a"][0],
            native_opcode_names_by_opcode,
            max_cost,
            flags,
        )
        return None if err == 0 else err, npc_list, cost
Exemple #4
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from clvm_rs import run_generator
from clvm import KEYWORD_FROM_ATOM, KEYWORD_TO_ATOM
from clvm.casts import int_from_bytes
from clvm.operators import OP_REWRITE

from chia.types.full_block import FullBlock
from chia.types.blockchain_format.program import Program
from chia.consensus.default_constants import DEFAULT_CONSTANTS
from chia.wallet.puzzles.rom_bootstrap_generator import get_generator
from chia.types.condition_opcodes import ConditionOpcode

GENERATOR_ROM = bytes(get_generator())

native_opcode_names_by_opcode = dict(("op_%s" % OP_REWRITE.get(k, k), op)
                                     for op, k in KEYWORD_FROM_ATOM.items()
                                     if k not in "qa.")


def run_gen(env_data: bytes, block_program_args: bytes):
    max_cost = DEFAULT_CONSTANTS.MAX_BLOCK_COST_CLVM
    cost_per_byte = DEFAULT_CONSTANTS.COST_PER_BYTE

    # we don't charge for the size of the generator ROM. However, we do charge
    # cost for the operations it executes
    max_cost -= len(env_data) * cost_per_byte

    env_data = b"\xff" + env_data + b"\xff" + block_program_args + b"\x80"

    try:
        return run_generator(
Exemple #5
0
def launch_tool(args, tool_name, default_stage=0):
    sys.setrecursionlimit(20000)
    parser = argparse.ArgumentParser(description='Execute a clvm script.')
    parser.add_argument(
        "--strict",
        action="store_true",
        help="Unknown opcodes are always fatal errors in strict mode")
    parser.add_argument(
        "-x",
        "--hex",
        action="store_true",
        help="Read program and environment as hexadecimal bytecode")
    parser.add_argument("-s",
                        "--stage",
                        type=stage_import,
                        help="stage number to include",
                        default=stage_import(default_stage))
    parser.add_argument(
        "-v",
        "--verbose",
        action="store_true",
        help="Display resolve of all reductions, for debugging")
    parser.add_argument(
        "-t",
        "--table",
        action="store_true",
        help="Print diagnostic table of reductions, for debugging")
    parser.add_argument("-c", "--cost", action="store_true", help="Show cost")
    parser.add_argument("--time",
                        action="store_true",
                        help="Print execution time")
    parser.add_argument("-m",
                        "--max-cost",
                        type=int,
                        default=11000000000,
                        help="Maximum cost")
    parser.add_argument("-d",
                        "--dump",
                        action="store_true",
                        help="dump hex version of final output")
    parser.add_argument("--quiet",
                        action="store_true",
                        help="Suppress printing the program result")
    parser.add_argument("-y",
                        "--symbol-table",
                        type=pathlib.Path,
                        help=".SYM file generated by compiler")
    parser.add_argument("-n",
                        "--no-keywords",
                        action="store_true",
                        help="Output result as data, not as a program")
    parser.add_argument("--backend",
                        type=str,
                        help="force use of 'rust' or 'python' backend")
    parser.add_argument(
        "-i",
        "--include",
        type=pathlib.Path,
        help="add a search path for included files",
        action="append",
        default=[],
    )
    parser.add_argument("path_or_code",
                        type=path_or_code,
                        help="filepath to clvm script, or a literal script")

    parser.add_argument("env",
                        nargs="?",
                        type=path_or_code,
                        help="clvm script environment, as clvm src, or hex")

    args = parser.parse_args(args=args[1:])

    keywords = {} if args.no_keywords else KEYWORD_FROM_ATOM

    if hasattr(args.stage, "run_program_for_search_paths"):
        run_program = args.stage.run_program_for_search_paths(args.include)
    else:
        run_program = args.stage.run_program

    input_serialized = None
    input_sexp = None

    time_start = time.perf_counter()
    if args.hex:
        assembled_serialized = bytes.fromhex(args.path_or_code)
        if not args.env:
            args.env = "80"
        env_serialized = bytes.fromhex(args.env)
        time_read_hex = time.perf_counter()

        input_serialized = b"\xff" + assembled_serialized + env_serialized
    else:

        src_text = args.path_or_code
        try:
            src_sexp = reader.read_ir(src_text)
        except SyntaxError as ex:
            print("FAIL: %s" % (ex))
            return -1
        assembled_sexp = binutils.assemble_from_ir(src_sexp)
        if not args.env:
            args.env = "()"
        env_ir = reader.read_ir(args.env)
        env = binutils.assemble_from_ir(env_ir)
        time_assemble = time.perf_counter()

        input_sexp = to_sexp_f((assembled_sexp, env))

    pre_eval_f = None
    symbol_table = None

    log_entries = []

    if args.symbol_table:
        with open(args.symbol_table) as f:
            symbol_table = json.load(f)
        pre_eval_f = make_trace_pre_eval(log_entries, symbol_table)
    elif args.verbose or args.table:
        pre_eval_f = make_trace_pre_eval(log_entries)

    run_script = getattr(args.stage, tool_name)

    cost = 0
    cost_offset = calculate_cost_offset(run_program, run_script)
    try:
        output = "(didn't finish)"

        use_rust = (
            (tool_name != "run") and not pre_eval_f
            and (args.backend == "rust" or
                 (deserialize_and_run_program2 and args.backend != "python")))
        max_cost = max(
            0, args.max_cost - cost_offset if args.max_cost != 0 else 0)
        if use_rust:
            if input_serialized is None:
                input_serialized = input_sexp.as_bin()

            run_script = run_script.as_bin()
            time_parse_input = time.perf_counter()

            # build the opcode look-up table
            # this should eventually be subsumed by "Dialect" api

            native_opcode_names_by_opcode = dict(
                ("op_%s" % OP_REWRITE.get(k, k), op)
                for op, k in KEYWORD_FROM_ATOM.items() if k not in "qa.")
            cost, result = deserialize_and_run_program2(
                run_script,
                input_serialized,
                KEYWORD_TO_ATOM["q"][0],
                KEYWORD_TO_ATOM["a"][0],
                native_opcode_names_by_opcode,
                max_cost,
                STRICT_MODE if args.strict else 0,
            )
            time_done = time.perf_counter()
            result = SExp.to(result)
        else:
            if input_sexp is None:
                input_sexp = sexp_from_stream(io.BytesIO(input_serialized),
                                              to_sexp_f)

            time_parse_input = time.perf_counter()
            cost, result = run_program(run_script,
                                       input_sexp,
                                       max_cost=max_cost,
                                       pre_eval_f=pre_eval_f,
                                       strict=args.strict)
            time_done = time.perf_counter()
        if args.cost:
            cost += cost_offset if cost > 0 else 0
            print("cost = %d" % cost)
        if args.time:
            if args.hex:
                print('read_hex: %f' % (time_read_hex - time_start))
            else:
                print('assemble_from_ir: %f' % (time_assemble - time_start))
                print('to_sexp_f: %f' % (time_parse_input - time_assemble))
            print('run_program: %f' % (time_done - time_parse_input))
        if args.dump:
            blob = as_bin(lambda f: sexp_to_stream(result, f))
            output = blob.hex()
        elif args.quiet:
            output = ''
        else:
            output = binutils.disassemble(result, keywords)
    except EvalError as ex:
        result = to_sexp_f(ex._sexp)
        output = "FAIL: %s %s" % (ex, binutils.disassemble(result, keywords))
        return -1
    except Exception as ex:
        output = str(ex)
        raise
    finally:
        print(output)
        if args.verbose or symbol_table:
            print()
            trace_to_text(log_entries, binutils.disassemble, symbol_table)
        if args.table:
            trace_to_table(log_entries, binutils.disassemble, symbol_table)