def parse_atom(self, tree):
if tree.children[0] == 'type':
tok = tree.children[1]
args = tree.children[2]
if args is None:
args = []
else:
args = [self.parse_atom(a) for a in args.children]
if tok.value in BasicTypes:
t = BasicTypes[tok.value]
if t.kind_arity != len(args):
msg = i18n.i18n('type "%s" expects %u parameters, but receives %u') % (
tok.value, t.kind_arity, len(args))
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
return t(*args)
else:
if tok.value in self.context.keys():
return self.context[tok.value]
else:
"""[TODO] Translate """
msg = i18n.i18n('Undefined type "%s".') % (tok.value,)
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
elif tree.children[0] == 'typeVar':
tok = tree.children[1]
if tok.value in self.typevars:
return self.typevars[tok.value]
else:
fresh = GbsTypeVar(tok.value)
self.typevars[tok.value] = fresh
return fresh
def load(self, board, f):
contents = f.read()
sizes = list(re.findall('\\GbstnTamanho{([0-9]+)}{([0-9]+)}', contents))
if len(sizes) != 1:
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed tex board'))
width, height = board.size = int(sizes[0][0]), int(sizes[0][1])
board.head = (0, 0)
board._clear_board()
for coli in range(4):
col = lang.gbs_builtins.Color(coli).name()
col_stones = re.findall('\\Gbstn' + col + '{([0-9]+)}{([0-9]+)}{([0-9]+)}' % (), contents)
for x, y, count in col_stones:
x, y, count = int(x), int(y), int(count)
if x >= width or y >= height:
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed tex board'))
board.cells[y][x].set_num_stones(coli, count)
headers = list(re.findall('\\GbstnCabezal{([0-9]+)}{([0-9]+)}', contents))
if len(headers) > 1:
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed tex board'))
elif len(headers) == 1:
x, y = int(headers[0][0]), int(headers[0][1])
if x >= width or y >= height:
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed tex board'))
board.head = y, x
board.clear_changelog()
def start(self, filename, program_text, initial_board_string, run_mode):
board = tools.board_format.from_string(initial_board_string)
if run_mode == XGobstonesWorker.RunMode.ONLY_CHECK:
options = lang.GobstonesOptions()
else:
options = lang.GobstonesOptions()
self.gobstones = lang.Gobstones(options, self.api)
try:
if run_mode == XGobstonesWorker.RunMode.FULL:
self.success(self.gobstones.run(filename, program_text, board))
else:
# Parse gobstones script
self.gobstones.api.log(i18n.i18n('Parsing.'))
tree = self.gobstones.parse(program_text, filename)
assert tree
# Explode macros
self.gobstones.api.log(i18n.i18n('Exploding program macros.'))
self.gobstones.explode_macros(tree)
# Check semantics, liveness and types
self.gobstones.check(tree)
self.success()
except Exception as exception:
self.failure(exception)
def parse_atom(self, tree):
if tree.children[0] == 'typeNameTypeCall':
tok = tree.children[1]
args = tree.children[2]
if args is None:
args = []
else:
args = [self.parse_atom(a) for a in args.children]
if tok.value not in BasicTypes:
msg = i18n.i18n('"%s" is not a basic type') % (tok.value, )
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
t = BasicTypes[tok.value]
if t.kind_arity != len(args):
msg = i18n.i18n(
'type "%s" expects %u parameters, but receives %u') % (
tok.value, t.kind_arity, len(args))
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
return t(*args)
elif tree.children[0] == 'typeVar':
tok = tree.children[1]
if tok.value in self.typevars:
return self.typevars[tok.value]
else:
fresh = GbsTypeVar(tok.value)
self.typevars[tok.value] = fresh
return fresh
def init_tags(self):
self.reserved = {
'delim': [
'{', '}', '(', ')', ';', ',',
],
'Main': ['Main'],
'keyword': [
'if', 'else', 'not', 'switch', 'to', 'while',
'foreach', 'in', 'procedure', 'function',
'return', 'div', 'mod', 'Skip',
'from', 'import',
],
'builtin_procedure': [i18n.i18n(name) for name in [
'THROW_ERROR', 'PutStone', 'TakeStone', 'Move', 'GoToOrigin', 'ClearBoard',
]],
'builtin_function': [i18n.i18n(name) for name in [
'numStones', 'existStones', 'canMove', 'minBool', 'maxBool',
'minDir', 'maxDir', 'minColor', 'maxColor', 'next', 'prev',
'opposite',
]],
'builtin_constant': [i18n.i18n(name) for name in [
'True', 'False', 'North', 'South', 'East', 'West',
'Color0', 'Color1', 'Color2', 'Color3',
]],
'type': [i18n.i18n(name) for name in [
'Color', 'Dir', 'Int', 'Bool',
]],
}
self.tags = TAGS
for tag, (fg, bg) in self.tags.items():
if fg is not None:
self.tag_config(tag, foreground=fg)
if bg is not None:
self.tag_config(tag, background=bg)
def parse_atom(self, tree):
if tree.children[0] == 'type':
tok = tree.children[1]
args = tree.children[2]
if args is None:
args = []
else:
args = [self.parse_atom(a) for a in args.children]
if tok.value in BasicTypes:
t = BasicTypes[tok.value]
if t.kind_arity != len(args):
msg = i18n.i18n(
'type "%s" expects %u parameters, but receives %u') % (
tok.value, t.kind_arity, len(args))
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
return t(*args)
else:
if tok.value in self.context.keys():
return self.context[tok.value]
else:
"""[TODO] Translate """
msg = i18n.i18n('Undefined type "%s".') % (tok.value, )
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
elif tree.children[0] == 'typeVar':
tok = tree.children[1]
if tok.value in self.typevars:
return self.typevars[tok.value]
else:
fresh = GbsTypeVar(tok.value)
self.typevars[tok.value] = fresh
return fresh
def compile_foreach_sequence(self, tree, code):
"Compile a foreach's sequence."
sequence = tree.children[2].children[1:]
code.push(('call', i18n.i18n('[]'), 0), near=tree)
for element in sequence:
self.compile_expression(element, code)
code.push(('call', i18n.i18n('_snoc'), 2), near=tree)
def parse_atom(self, tree):
if tree.children[0] == 'typeNameTypeCall':
tok = tree.children[1]
args = tree.children[2]
if args is None:
args = []
else:
args = [self.parse_atom(a) for a in args.children]
if tok.value not in BasicTypes:
msg = i18n.i18n('"%s" is not a basic type') % (tok.value,)
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
t = BasicTypes[tok.value]
if t.kind_arity != len(args):
msg = i18n.i18n('type "%s" expects %u parameters, but receives %u') % (
tok.value, t.kind_arity, len(args))
area = common.position.ProgramAreaNear(tok)
raise GbsTypeSyntaxException(msg, area)
return t(*args)
elif tree.children[0] == 'typeVar':
tok = tree.children[1]
if tok.value in self.typevars:
return self.typevars[tok.value]
else:
fresh = GbsTypeVar(tok.value)
self.typevars[tok.value] = fresh
return fresh
def start_test_case(self, i):
if i >= len(self._test_cases):
self.log(i18n.i18n('Program execution finished.'))
self._state = 'end'
return 'END'
n_of_m = ' (%s/%s)' % ((i + 1), len(self._test_cases))
self.log(
i18n.i18n('Starting test case %s.') %
(self._test_cases[i].id(), ) + n_of_m)
compiled_code = self._code_dict.compiled_code_for(
self._test_cases[i].program_name())
self._test_board = self._bundle.load_board(
self._problem, self._test_cases[i].board_name())
try:
self._vm = lang.gbs_vm.GbsVmInterpreter(
toplevel_filename=self._code_dict._solution_filename)
self._vm.init_program(compiled_code, self._test_board)
except common.utils.SourceException as exception:
self._error_exception = exception
self._state = 'failed'
return 'FAILED'
self._state = 'running'
return 'CONTINUE'
def board_change_size(self, *args):
if self.tools.DefaultBoardSize == 'random':
w, h = 9, 9
else:
w, h = self.tools.DefaultBoardSize
# ask for size
msg = i18n.i18n('Invalid board size')
nw = tkinter.simpledialog.askstring(
i18n.i18n('Change board size'),
i18n.i18n('Width:'),
initialvalue='%s' % (w,))
nh = tkinter.simpledialog.askstring(
i18n.i18n('Change board size'),
i18n.i18n('Height:'),
initialvalue='%s' % (h,))
if not common.utils.is_int(nw) or not common.utils.is_int(nh):
return self.show_string_error(msg)
w, h = int(nw), int(nh)
if w == 0 or h == 0 or w > 200 or h > 200:
return self.show_string_error(msg)
self.tools.DefaultBoardSize = w, h
# resize board
if not self.viewer:
self.open_viewer()
self.viewer.randomize()
self.viewer.show_board0()
def start(self, filename, program_text, initial_board_string, run_mode):
board = tools.board_format.from_string(initial_board_string)
if run_mode == Interpreter.RunMode.ONLY_CHECK:
options = lang.GobstonesOptions("lax", True, True)
else:
options = lang.GobstonesOptions()
self.gobstones = lang.Gobstones(options, self.api)
try:
if run_mode == Interpreter.RunMode.FULL:
self.success(self.gobstones.run(filename, program_text, board))
else:
# Parse gobstones script
self.gobstones.api.log(i18n.i18n('Parsing.'))
tree = self.gobstones.parse(program_text, filename)
assert tree
# Explode macros
self.gobstones.api.log(i18n.i18n('Exploding program macros.'))
self.gobstones.explode_macros(tree)
# Check semantics, liveness and types
self.gobstones.check(tree)
self.success()
except Exception as exception:
self.failure(exception)
def load(self, board, f):
contents = f.read()
sizes = list(re.findall('\\GbstnTamanho{([0-9]+)}{([0-9]+)}',
contents))
if len(sizes) != 1:
raise lang.board.basic.BoardFormatException(
i18n.i18n('Malformed tex board'))
width, height = board.size = int(sizes[0][0]), int(sizes[0][1])
board.head = (0, 0)
board._clear_board()
for coli in range(4):
col = lang.gbs_builtins.Color(coli).name()
col_stones = re.findall(
'\\Gbstn' + col + '{([0-9]+)}{([0-9]+)}{([0-9]+)}' % (),
contents)
for x, y, count in col_stones:
x, y, count = int(x), int(y), int(count)
if x >= width or y >= height:
raise lang.board.basic.BoardFormatException(
i18n.i18n('Malformed tex board'))
board.cells[y][x].set_num_stones(coli, count)
headers = list(
re.findall('\\GbstnCabezal{([0-9]+)}{([0-9]+)}', contents))
if len(headers) > 1:
raise lang.board.basic.BoardFormatException(
i18n.i18n('Malformed tex board'))
elif len(headers) == 1:
x, y = int(headers[0][0]), int(headers[0][1])
if x >= width or y >= height:
raise lang.board.basic.BoardFormatException(
i18n.i18n('Malformed tex board'))
board.head = y, x
board.clear_changelog()
def _infer_func_call(self, tree, nretvals):
"Infer types for a function call."
fun_name = tree.children[1].value
fun_type = self.global_context[fun_name].instantiate()
arg_type = self.infer_tuple(tree.children[2])
subtypes = [lang.gbs_type.GbsTypeVar() for i in range(nretvals)]
res_type = lang.gbs_type.GbsTupleType(subtypes)
expected = lang.gbs_type.GbsFunctionType(arg_type, res_type)
# check parameters
try:
lang.gbs_type.unify(fun_type.paramtype(), expected.paramtype())
except lang.gbs_type.UnificationFailedException as e:
area = common.position.ProgramAreaNear(tree)
msg = i18n.i18n('function "%s" is receiving: %s\n' +
'But should receive: %s') % (fun_name,
expected.paramtype(),
fun_type.paramtype())
raise GbsTypeInferenceException(msg, area)
# check return value
try:
lang.gbs_type.unify(fun_type._res, expected._res)
except lang.gbs_type.UnificationFailedException as e:
area = common.position.ProgramAreaNear(tree)
msg = i18n.i18n('function "%s" is called as if it returned: %s\n' +
'But returns: %s') % (fun_name, expected._res,
fun_type._res)
raise GbsTypeInferenceException(msg, area)
tree.type_annotation = expected.parameters()
return res_type
def init_tags(self):
self.reserved = {
'delim': [
'{', '}', '(', ')', ';', ',',
],
'keyword': [
'if', 'else', 'not', 'case', 'while', 'switch', 'to', 'match',
'field', 'record', 'is', 'variant', 'type',
'repeat', 'foreach', 'in', 'procedure', 'function',
'return', 'div', 'mod', 'Skip',
'from', 'import', 'program', 'interactive'
],
'builtin_procedure': [i18n.i18n(name) for name in [
'THROW_ERROR', 'PutStone', 'TakeStone', 'Move', 'GoToOrigin', 'ClearBoard',
]],
'builtin_function': [i18n.i18n(name) for name in [
'numStones', 'existStones', 'canMove', 'minBool', 'maxBool',
'minDir', 'maxDir', 'minColor', 'maxColor', 'next', 'prev',
'opposite',
]],
'builtin_constant': [i18n.i18n(name) for name in [
'True', 'False', 'North', 'South', 'East', 'West',
'Color0', 'Color1', 'Color2', 'Color3',
]],
'type': [i18n.i18n(name) for name in [
'Color', 'Dir', 'Int', 'Bool',
]],
}
self.tags = TAGS
for tag, (fg, bg) in self.tags.items():
if fg is not None:
self.tag_config(tag, foreground=fg)
if bg is not None:
self.tag_config(tag, background=bg)
def check_import(self, tree):
mdl_name = tree.children[1].value
if not self.module_handler.module_exists(mdl_name):
pos = common.position.ProgramAreaNear(tree.children[1])
raise GbsLintException(i18n.i18n('Module %s cannot be found') % (mdl_name,), pos)
try:
mdl_tree = self.module_handler.parse_tree(mdl_name)
except common.utils.SourceException as exception:
self.module_handler.reraise(GbsLintException, exception,
common.i18n.i18n('Error parsing module %s') % (mdl_name,),
common.position.ProgramAreaNear(tree.children[1]))
if mdl_name in self.loaded_modules:
pos = common.position.ProgramAreaNear(tree.children[1])
raise GbsLintException(i18n.i18n('Recursive modules'), pos)
mdl_lint = GbsSemanticChecker(strictness=self.strictness, warn=self.warn, explicit_board=self.explicit_board)
try:
mdl_lint.check_program(mdl_tree, self.loaded_modules + [mdl_name], is_main_program=False)
except common.utils.SourceException as exception:
self.module_handler.reraise(GbsLintException, exception,
common.i18n.i18n('Error linting module %s') % (mdl_name,),
common.position.ProgramAreaNear(tree.children[1]))
import_tokens = tree.children[2].children
imports = map(lambda imp: imp.value, import_tokens)
constructs = tree.children[2].children = mdl_lint.all_defined_routine_or_type_names()
if not (len(imports) == 1 and imports[0] == '*'):
newcons = []
imported = []
for construct in constructs:
if construct.name() in imports:
newcons.append(construct)
imported.append(construct.name())
if isinstance(construct, lang.gbs_constructs.UserType):
newcons.extend(mdl_lint.field_getters_for_type(construct.name()))
constructs = newcons
invalid_imports = set(imports).difference(set(imported))
if len(invalid_imports) > 0:
import_index = imports.index(invalid_imports[0])
mdl_lint.symbol_table._error_not_defined(import_tokens[import_index],
imports[import_index],
'type or callable')
for construct in constructs:
if isinstance(construct, lang.gbs_constructs.BuiltinFieldGetter):
if not construct.name() in self.imported_rtns:
self.symbol_table.add(construct, area=None)
self.imported_rtns[construct.name()] = True
else:
if construct.name() in self.imported_rtns:
pos = common.position.ProgramAreaNear(construct.identifier())
raise GbsLintException(i18n.i18n('%s %%s was already imported' % (construct.type(),)) % (construct.name(),), pos)
else:
self.symbol_table.add(construct, area=common.position.ProgramAreaNear(construct.identifier()))
self.imported_rtns[construct.name()] = True
def check(self, options):
if options['src']:
self.check_file_exists(options['src'])
if options['from']:
self.check_file_exists(options['from'])
if options['lint'] not in lang.GobstonesOptions.LINT_MODES:
raise OptionsException(i18n.i18n('%s is not a valid lint option.') % (options['lint'],))
if not self.check_size(options['size']):
raise OptionsException(i18n.i18n('Size %s is not a valid size. Positive integers expected.') % (str(options['size']),))
def __init__(self, tools, parent_gui=None, font=gui.config.DefaultFont, *args, **kwargs):
tkinter.Tk.__init__(self, *args, **kwargs)
self.tools = tools
self.parent_gui = parent_gui
self._font = font
bframe = tkinter.Frame(self)
ti = i18n.i18n('Initial board')
tf = i18n.i18n('Final board')
self.button0 = tkinter.Button(bframe, text=ti, command=self.show_board0)
self.button1 = tkinter.Button(bframe, text=tf, command=self.show_board1)
self.button0.pack(side=tkinter.LEFT)
self.button1.pack(side=tkinter.LEFT)
self.bind_all('<KeyPress>', self.keypress)
self.bind_all('<z>', self.board_zoom_out)
self.bind_all('<x>', self.board_zoom_in)
self.bind_all('<KeyPress-Up>',
lambda ev: self.keypress_cursor(self.tools.builtins.NORTH, ev))
self.bind_all('<KeyPress-Down>',
lambda ev: self.keypress_cursor(self.tools.builtins.SOUTH, ev))
self.bind_all('<KeyPress-Left>',
lambda ev: self.keypress_cursor(self.tools.builtins.WEST, ev))
self.bind_all('<KeyPress-Right>',
lambda ev: self.keypress_cursor(self.tools.builtins.EAST, ev))
self.bind_all('<Home>', lambda ev: self.grandmove('home'))
self.bind_all('<End>', lambda ev: self.grandmove('end'))
self.bind_all('<Prior>', lambda ev: self.grandmove('up'))
self.bind_all('<Next>', lambda ev: self.grandmove('down'))
bframe.pack(side=tkinter.TOP, fill=tkinter.X)
self.board0 = self.tools.Board((1, 1))
self.board0.randomize_full()
self.board1 = self.tools.Board((1, 1))
self.reset_board1()
self._build_scrolled_board_frame()
self.err_frame = None
self.show_board0()
self.visible_board = None
self.filename = None
if self.parent_gui:
self.bind_all('<Control-e>', self.parent_gui.board_empty)
self.bind_all('<Control-i>', lambda *args: self.parent_gui.board_random_full())
self.bind_all('<Control-r>', lambda *args: self.parent_gui.board_random_contents())
self.bind_all('<Control-t>', self.parent_gui.board_change_size)
self.bind_all('<Control-b>', lambda *args: self.parent_gui.board_load())
self.bind_all('<Control-g>', lambda *args: self.parent_gui.board_save())
self.bind_all('<Control-n>', self.parent_gui.file_new)
self.bind_all('<Control-o>', self.parent_gui.file_open)
self.bind_all('<Control-s>', self.parent_gui.file_save)
self.bind_all('<F5>', self.parent_gui.gobstones_start_run)
self.bind_all('<F10>', self.parent_gui.gobstones_check)
def _warn_conflict(self, nonterminal, terminal, area):
"Emits a warning for a conflictive state."
msg = ''
msg += i18n.i18n('Conflictive rule for: ("%s", "%s")\n') % (
nonterminal, terminal)
msg += i18n.i18n('Will choose first production:\n')
msg += common.utils.indent(
bnf_rule_to_str(self._parse_table[(nonterminal, terminal)]))
self.warn(ParserException(msg, area))
def _warn_conflict(self, nonterminal, terminal, area):
"Emits a warning for a conflictive state."
msg = ''
msg += i18n.i18n('Conflictive rule for: ("%s", "%s")\n') % (
nonterminal, terminal)
msg += i18n.i18n('Will choose first production:\n')
msg += common.utils.indent(bnf_rule_to_str(
self._parse_table[(nonterminal, terminal)]))
self.warn(ParserException(msg, area))
def check(self, options):
if options['src']:
self.check_file_exists(options['src'])
if options['from']:
self.check_file_exists(options['from'])
if options['lint'] not in lang.GobstonesOptions.LINT_MODES:
raise OptionsException(i18n.i18n('%s is not a valid lint option.') % (options['lint'],))
if not self.check_size(options['size']):
raise OptionsException(i18n.i18n('Size %s is not a valid size. Positive integers expected.') % (str(options['size']),))
def parse(self, filename, program_text):
# Parse gobstones script
self.api.log(i18n.i18n('Parsing.'))
tree = self._parse(program_text, filename)
assert tree
# Explode macros
self.api.log(i18n.i18n('Exploding program macros.'))
self.explode_macros(tree)
return GobstonesRun().initialize(tree)
def _file_close(self):
if self.editor.text_has_changed():
ans = tkinter.messagebox.askyesnocancel(
i18n.i18n('File not saved'),
i18n.i18n('File has not been saved.\nSave it now?'))
if ans is None: return False
if ans == True:
if not self.file_save(): return False
self.editor.new_file()
return True
def draw_stone(self, x0, y0, x1, y1, col, count):
if count == 0: return
sm = (x1 - x0) // 8
fill = i18n.i18n(Colors['stone_fill%i' % (col,)])
outline = i18n.i18n(Colors['stone_border%i' % (col,)])
self.create_oval(x0 + sm, y0 + sm, x1 - sm, y1 - sm,
outline=outline, fill=fill, width=1)
self.create_text((x0 + x1) // 2, (y0 + y1) // 2,
font=self._font,
text=str(count), justify=tkinter.CENTER)
def _init_filetypes(self):
self.filetypes = {
'gbs': [
(i18n.i18n('Gobstones source'), '*.gbs', 'TEXT'),
(i18n.i18n('All files'), '*'),
],
}
self.filetypes['board_load'] = [
(i18n.i18n('Gobstones board'), '*.gbb', 'TEXT'),
(i18n.i18n('Gobstones board (old format)'), '*.gbt', 'TEXT'),
(i18n.i18n('TeX/LaTeX file'), '*.tex', 'TEXT'),
]
self.filetypes['board_save'] = self.filetypes['board_load'][:]
self.filetypes['board_save'].append(
(i18n.i18n('HTML file'), '*.html', 'TEXT')
)
self.filetypes['board_save'].append(
(i18n.i18n('FIG image file'), '*.fig', 'TEXT')
)
self.filetypes['board_load'].append(
(i18n.i18n('All files'), '*'),
)
self.filetypes['board_save'].append(
(i18n.i18n('All files'), '*'),
)
def board_move(global_state, direction):
"""Move the head."""
if poly_typeof(direction) != 'Dir':
msg = i18n.i18n('The argument to Move should be a direction')
raise GbsRuntimeException(msg, global_state.area())
if global_state.board.can_move(direction):
global_state.board.move(direction)
else:
msg = global_state.backtrace(
i18n.i18n('Cannot move to %s') % (direction,))
raise GbsRuntimeException(msg, global_state.area())
def board_take_stone(global_state, color):
"""Take a stone from the board."""
if poly_typeof(color) != 'Color':
msg = i18n.i18n('The argument to TakeStone should be a color')
raise GbsRuntimeException(msg, global_state.area())
if global_state.board.num_stones(color) > 0:
global_state.board.take_stone(color)
else:
msg = global_state.backtrace(
i18n.i18n('Cannot take stones of color %s') % (color,))
raise GbsRuntimeException(msg, global_state.area())
def board_take_stone(global_state, color):
"""Take a stone from the board."""
if poly_typeof(color) != 'Color':
msg = i18n.i18n('The argument to TakeStone should be a color')
raise GbsRuntimeException(msg, global_state.area())
if global_state.board.num_stones(color) > 0:
global_state.board.take_stone(color)
else:
msg = global_state.backtrace(
i18n.i18n('Cannot take stones of color %s') % (color, ))
raise GbsRuntimeException(msg, global_state.area())
def _set_routine_definition_type(self, tree, prfn, name, params, body):
"""Given a context with types for the parameters and local
variables in a routine, build the type for this routine
and unify it with its type in the global context.
For instance if the function "f" has a parameter "x",
and returns an expression, take the type "s" for "x"
from the local context, the type "t" for the returned
expression. Build the type "s -> t" for the function
and unify that with any type information previously
known for "f". This requires that the body of the routine
has already been typechecked."""
param_types = []
for p in params.children:
param_types.append(self.context[p.value])
param_types = lang.gbs_type.GbsTupleType(param_types)
if prfn == 'procedure':
def_type = lang.gbs_type.GbsProcedureType(param_types)
elif prfn == 'function':
return_types = self._return_type(prfn, name, params, body)
def_type = lang.gbs_type.GbsFunctionType(param_types, return_types)
elif prfn == 'entrypoint' and (name.value == 'program' or name.value == 'interactive'):
def_type = lang.gbs_type.GbsEntryPointType()
else:
assert False
expected = self.global_context[name.value].instantiate()
try:
lang.gbs_type.unify(expected, def_type)
if prfn == 'function': #[TODO] Check
freevars = def_type.freevars()
if len(freevars) > 0:
def_type = lang.gbs_type.GbsForallType(freevars, def_type)
self.global_context[name.value] = def_type
tree.type_annot = def_type
except lang.gbs_type.UnificationFailedException as e:
area = common.position.ProgramAreaNear(tree)
if prfn == 'procedure':
msg = i18n.i18n(
'procedure "%s" should take: %s\n' +
'But takes: %s'
) % (
name.value,
expected.paramtype(),
def_type.paramtype()
)
else:
msg = i18n.i18n(
'function "%s" should take: %s and return: %s\n' +
'But takes: %s and returns: %s'
) % (
name.value,
expected.paramtype(), expected.restype(),
def_type.paramtype(), def_type.restype()
)
self.error(GbsTypeInferenceException(msg, area))
def _error_conflictive_definition(self, tree, name, as_type, val):
if val.name() == name:
area = common.position.ProgramAreaNear(tree)
l1 = i18n.i18n('"%s" is not a ' + as_type) % (name,)
l2 = i18n.i18n(val.type() + ' "%s" defined %s') % (name, val.where())
raise GbsLintException('\n'.join([l1, l2]), area)
else:
area = common.position.ProgramAreaNear(tree)
msg = i18n.i18n('"%s" is too similar to ' + val.type() + ' "%s", defined %s') % (
name, val.name(), val.where())
raise GbsLintException(msg, area)
def list_binary_operation(global_state, lst1, lst2, f):
"""Wrapper for binary list operations to ensure list types"""
if poly_typeof(lst1) == poly_typeof(lst2) and poly_typeof(lst1) == 'List' and list_inner_type_eq(lst1, lst2):
return f(lst1, lst2)
else:
if poly_typeof(lst1) != 'List':
msg = global_state.backtrace(i18n.i18n('%s was expected') % (i18n.i18n('list type value'),))
raise GbsRuntimeException(msg, global_state.area())
else:
msg = global_state.backtrace(i18n.i18n('Concatenation between lists with different inner type.'))
raise GbsRuntimeException(msg, global_state.area())
def compile_foreach_range(self, tree, code):
"Compile a foreach's range."
_, range_first, range_last, range_second = tree.children[2].children
self.compile_expression(range_first, code)
self.compile_expression(range_last, code)
if not range_second is None:
self.compile_expression(range_second, code)
else:
self.compile_expression(range_first, code)
code.push(('call', i18n.i18n('next'), 1), near=tree)
code.push(('call', i18n.i18n('_range'), 3), near=tree)
def board_move(global_state, direction):
"""Move the head."""
if poly_typeof(direction) != 'Dir':
msg = i18n.i18n('The argument to Move should be a direction')
raise GbsRuntimeException(msg, global_state.area())
if global_state.board.can_move(direction):
global_state.board.move(direction)
else:
msg = global_state.backtrace(
i18n.i18n('Cannot move to %s') % (direction, ))
raise GbsRuntimeException(msg, global_state.area())
def _add_index(self, varName, tree):
var = self.symbol_table.check_not_defined_or_defined_as(tree, varName, 'atomic', ['index', 'variable', 'parameter'])
if var is None:
self.symbol_table.add(lang.gbs_constructs.UserIndex(varName, tree))
elif var.type() == 'variable':
msg = i18n.i18n('Index of a foreach/repeatWith/repeat cannot be a variable: "%s"') % (varName,)
area = common.position.ProgramAreaNear(tree)
raise GbsLintException(msg, area)
elif var.type() == 'parameter':
msg = i18n.i18n('Index of a foreach/repeatWith/repeat cannot be a parameter: "%s"') % (varName,)
area = common.position.ProgramAreaNear(tree)
raise GbsLintException(msg, area)
def _add_var(self, varName, tree):
var = self.symbol_table.check_not_defined_or_defined_as(tree, varName, 'atomic', ['variable', 'index', 'parameter'])
if var is None:
self.symbol_table.add(lang.gbs_constructs.UserVariable(varName, tree))
elif var.type() == 'index':
msg = i18n.i18n('Cannot modify "%s": index of a foreach/repeatWith/repeat is immutable') % (varName,)
area = common.position.ProgramAreaNear(tree)
raise GbsLintException(msg, area)
elif var.type() == 'parameter':
msg = i18n.i18n('Cannot modify "%s": parameter is immutable') % (varName,)
area = common.position.ProgramAreaNear(tree)
raise GbsLintException(msg, area)
def _put_from_description(self, cell, description):
coli = 0
for cn in lang.gbs_builtins.COLOR_NAMES:
if description[-1].lower() == cn[0].lower():
count = description[:-1]
for l in count:
if l not in '0123456789':
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed board'))
cell.put(coli, int(count))
return
coli += 1
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed board'))
def force_file_save(self, *args):
if self.editor.has_filename():
self.editor.save_file(self.editor.filename())
return True
else:
ans = tkinter.messagebox.askyesno(
i18n.i18n('Source must be saved'),
i18n.i18n('Source must be saved.\nOk to save?'))
if ans == True:
return self.file_save_as()
else:
return False
def _put_from_description(self, cell, description):
coli = 0
for cn in lang.gbs_builtins.COLOR_NAMES:
if description[-1].lower() == cn[0].lower():
count = description[:-1]
for l in count:
if l not in '0123456789':
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed board'))
cell.put(coli, int(count))
return
coli += 1
raise lang.board.basic.BoardFormatException(i18n.i18n('Malformed board'))
def run_filename(fn, **options):
if not os.path.exists(fn):
report_error(i18n.i18n('Error'),
i18n.i18n('File %s does not exist') % (fn, ))
return False
lfn = fn.lower()
if lfn.endswith('.gbo'):
return run_object_filename(fn, **options)
elif lang.board.formats.is_board_filename(fn):
return run_board_filename(fn, **options)
else:
return run_gbs_filename(fn, **options)
def compile(self, filename, program_text):
gbs_run = self.parse(filename, program_text)
tree = gbs_run.tree
# Check semantics, liveness and types
self.check(tree)
# Optimize program
if self.options.optimize:
self.api.log(i18n.i18n('Optimizing.')) #[TODO] i18n
lang.gbs_optimizer.optimize(tree)
# Compile program
self.api.log(i18n.i18n('Compiling.'))
gbs_run.compiled_program = self.compile_program(tree)
return gbs_run
def _error_conflictive_definition(self, tree, name, as_type, val):
if val.name() == name:
area = common.position.ProgramAreaNear(tree)
l1 = i18n.i18n('"%s" is not a ' + as_type) % (name, )
l2 = i18n.i18n(val.type() + ' "%s" defined %s') % (name,
val.where())
raise GbsLintException('\n'.join([l1, l2]), area)
else:
area = common.position.ProgramAreaNear(tree)
msg = i18n.i18n('"%s" is too similar to ' + val.type() +
' "%s", defined %s') % (name, val.name(),
val.where())
raise GbsLintException(msg, area)
def _result(self, tit, out, board, head_pos, keyvals):
if board is not None:
out.write(' <h3>%s</h3>\n' % (tit,))
out.write(html_board(board, draw_head=self._options['check_head']))
if self._options['check_result']:
out.write(' <h3>%s</h3>\n' % (i18n.i18n('Returned variables'),))
if len(keyvals) == 0:
out.write(' <tt><%s></tt>\n' % (i18n.i18n('No returned variables'),))
else:
out.write(' <div class="returned_vars">\n')
for k, v in keyvals:
out.write('<p><tt>%s -> %s</tt></p>\n' % (k, v))
out.write(' </div>\n')
def parse_error(self, nonterminal, previous_token, token):
"Raises a GbstonesParserException describing a parse error."
area = common.position.ProgramAreaNear(token)
if previous_token.type == 'lowerid' and token.type == '(':
raise GbsParserException(i18n.i18n('Cannot call a function here'), area)
elif previous_token.type == 'upperid' and token.type == '(':
raise GbsParserException(i18n.i18n('Cannot call a procedure here'), area)
elif previous_token.type == 'upperid' and token.type != '(':
msg = i18n.i18n('Procedure name "%s" is missing a "("') % (previous_token.value,)
raise GbsParserException(msg, area)
elif token.type == 'EOF':
raise GbsParserException(i18n.i18n('Premature end of input'), area)
lang.bnf_parser.Parser.parse_error(self, nonterminal, previous_token, token)
def _tabmenu(self, out):
out.write('<p>\n')
out.write(
' <input type="submit" class="btn" id="link_test_case" onclick="show(\'test_case\')" value="%s">\n'
% (i18n.i18n('Test case'), ))
if self._options['provide_expected_result']:
out.write(
' <input type="submit" class="btn" id="link_expected_result" onclick="show(\'expected_result\')" value="%s">\n'
% (i18n.i18n('Expected result'), ))
out.write(
' <input type="submit" class="btn" id="link_obtained_result" onclick="show(\'obtained_result\')" value="%s">\n'
% (i18n.i18n('Obtained result'), ))
out.write('</p>\n')
def check_import(self, tree):
mdl_name = tree.children[1].value
if not self.module_handler.module_exists(mdl_name):
pos = common.position.ProgramAreaNear(tree.children[1])
raise GbsLintException(i18n.i18n('Module %s cannot be found') % (mdl_name,), pos)
try:
mdl_tree = self.module_handler.parse_tree(mdl_name)
except common.utils.SourceException as exception:
self.module_handler.reraise(GbsLintException, exception,
common.i18n.i18n('Error parsing module %s') % (mdl_name,),
common.position.ProgramAreaNear(tree.children[1]))
if mdl_name in self.loaded_modules:
pos = common.position.ProgramAreaNear(tree.children[1])
raise GbsLintException(i18n.i18n('Recursive modules'), pos)
mdl_lint = GbsSemanticChecker(strictness=self.strictness, warn=self.warn)
try:
mdl_lint.check_program(mdl_tree, self.loaded_modules + [mdl_name], is_main_program=False)
except common.utils.SourceException as exception:
self.module_handler.reraise(GbsLintException, exception,
common.i18n.i18n('Error linting module %s') % (mdl_name,),
common.position.ProgramAreaNear(tree.children[1]))
rtns = tree.children[2].children
if len(rtns) == 1 and rtns[0].value == '*':
rtns = tree.children[2].children = mdl_lint.all_defined_routine_or_type_names()
for rtn in rtns:
if rtn.type == 'lowerid':
construct_type = 'function'
else:
construct_type = 'procedure'
if mdl_lint.symbol_table.is_defined_as(rtn, rtn.value, 'callable', construct_type):
construct = mdl_lint.symbol_table.get('callable', rtn.value, None)
elif mdl_lint.symbol_table.is_defined_as(rtn, rtn.value, 'atomic', 'type'):
construct_type = 'type'
rtn.is_type_annotation = True
construct = mdl_lint.symbol_table.get('atomic', rtn.value, None)
else:
mdl_lint.symbol_table._error_not_defined(rtn, rtn.value, 'type or callable')
if rtn.value in self.imported_rtns:
pos = common.position.ProgramAreaNear(rtn)
raise GbsLintException(i18n.i18n('%s %%s was already imported' % (construct_type,)) % (rtn.value,), pos)
self.imported_rtns[rtn.value] = True
self.symbol_table.add(construct, area=common.position.ProgramAreaNear(rtn))
def _result(self, tit, out, board, head_pos, keyvals):
if board is not None:
out.write(' <h3>%s</h3>\n' % (tit, ))
out.write(html_board(board, draw_head=self._options['check_head']))
if self._options['check_result']:
out.write(' <h3>%s</h3>\n' % (i18n.i18n('Returned variables'), ))
if len(keyvals) == 0:
out.write(' <tt><%s></tt>\n' %
(i18n.i18n('No returned variables'), ))
else:
out.write(' <div class="returned_vars">\n')
for k, v in keyvals:
out.write('<p><tt>%s -> %s</tt></p>\n' % (k, v))
out.write(' </div>\n')
def run_runnable(runnable, **options):
try:
board = lang.gbs_board.Board((1, 1))
if options['from']:
inb = options['from']
if not os.path.exists(inb):
report_error(i18n.i18n('Error'),
i18n.i18n('File %s does not exist') % (inb, ))
return False
fmt = options['from'].split('.')[-1]
fmt = fmt.lower()
if fmt not in lang.board.formats.AvailableFormats:
fmt = lang.board.formats.DefaultFormat
f = open(inb, 'r')
board.load(f, fmt=fmt)
f.close()
else:
if options['size']:
board.clone_from(lang.gbs_board.Board(options['size']))
board.randomize_contents()
else:
board.randomize_full()
initial_board = board.clone()
result = runnable.run(board)
if options['to']:
f = open(options['to'], 'w')
fmt = options['to'].split('.')[-1]
fmt = fmt.lower()
if fmt not in lang.board.formats.AvailableFormats:
fmt = lang.board.formats.DefaultFormat
board.dump(f, fmt=fmt, style=style(options))
f.close()
if options['print-input']:
print(initial_board)
if options['print-board']:
print(board)
if options['print-retvals']:
for var, val in result:
print('%s -> %s' % (var, val))
if not options['print-board']:
print('OK')
except common.utils.SourceException as exception:
report_program_error(exception.error_type(), exception.msg,
exception.area)
return True
def _input_board(self, out):
out.write(' <div id="test_case" class="info_frame" style="background:#c0c0c0">\n')
out.write(' <h3>%s</h3>\n' % (i18n.i18n('Initial board'),))
input_board = self._initial_board
out.write(html_board(input_board))
if self._source_code:
out.write(' <h3>%s</h3>\n' % (i18n.i18n('Source code'),))
out.write('<pre>')
out.write(html_escape(pprint(self._source_code, self._test_case.run_name())))
out.write('</pre>')
out.write(' </div>\n')
def compile(self, filename, program_text):
# Parse gobstones script
self.api.log(i18n.i18n('Parsing.'))
tree = self.parse(program_text, filename)
assert tree
# Explode macros
self.api.log(i18n.i18n('Exploding program macros.'))
self.explode_macros(tree)
# Check semantics, liveness and types
self.check(tree)
# Compile program
self.api.log(i18n.i18n('Compiling.'))
compiled_program = self.compile_program(tree)
return GobstonesRun().initialize(tree, compiled_program)
def compile(self, filename, program_text):
# Parse gobstones script
self.api.log(i18n.i18n('Parsing.'))
tree = self.parse(program_text, filename)
assert tree
# Explode macros
self.api.log(i18n.i18n('Exploding program macros.'))
self.explode_macros(tree)
# Check semantics, liveness and types
self.check(tree)
# Compile program
self.api.log(i18n.i18n('Compiling.'))
compiled_program = self.compile_program(tree)
return GobstonesRun().initialize(tree, compiled_program)
def build_special_key_constants(self):
return [
self.build_key_constant(i18n.i18n("K_ARROW_LEFT"), GobstonesKeys.ARROW_LEFT),
self.build_key_constant(i18n.i18n("K_ARROW_UP"), GobstonesKeys.ARROW_UP),
self.build_key_constant(i18n.i18n("K_ARROW_RIGHT"), GobstonesKeys.ARROW_RIGHT),
self.build_key_constant(i18n.i18n("K_ARROW_DOWN"), GobstonesKeys.ARROW_DOWN),
self.build_key_constant('K_CTRL_D', 4),
self.build_key_constant('K_ENTER', 13),
self.build_key_constant('K_SPACE', 32),
self.build_key_constant('K_DELETE', 46),
self.build_key_constant('K_BACKSPACE', 8),
self.build_key_constant('K_TAB', 9),
self.build_key_constant('K_ESCAPE', 27),
]
def check_unused_assignVarTuple1(self, tree):
varnames = [v.value for v in tree.children[1].children]
any_used = False
for v in varnames:
if v in tree.live_out:
any_used = True
break
if not any_used:
if len(varnames) == 1:
msg = i18n.i18n('Variable "%s" defined but not used') % (varnames[0],)
else:
msg = i18n.i18n('Variables "(%s)" defined but not used') % (
', '.join(varnames),)
area = common.position.ProgramAreaNear(tree)
raise GbsUnusedVarException(msg, area)
def _add_index(self, varName, tree):
var = self.symbol_table.check_not_defined_or_defined_as(
tree, varName, 'atomic', ['index', 'variable', 'parameter'])
if var is None:
self.symbol_table.add(lang.gbs_constructs.UserIndex(varName, tree))
elif var.type() == 'variable':
msg = i18n.i18n(
'Index of a foreach cannot be a variable: "%s"') % (varName, )
area = common.position.ProgramAreaNear(tree)
raise GbsLintException(msg, area)
elif var.type() == 'parameter':
msg = i18n.i18n(
'Index of a foreach cannot be a parameter: "%s"') % (varName, )
area = common.position.ProgramAreaNear(tree)
raise GbsLintException(msg, area)
def parse_error(self, top, _previous_token, token):
"Raises a ParserException describing a parse error."
if is_nonterminal(top):
follow = self._followups(top)
else:
follow = [Token.type_description(top)]
if len(follow) == 1:
msg = i18n.i18n('Found: %s\nExpected: %s') % (token, follow[0])
else:
msg = ''
msg += i18n.i18n('\n'.join([
'Found: %s', 'Expected one of the following tokens:'
])) % (token, )
msg += '\n' + common.utils.indent('\n'.join(follow))
raise ParserException(msg, common.position.ProgramAreaNear(token))
def _set_routine_definition_type(self, tree, prfn, name, params, body):
"""Given a context with types for the parameters and local
variables in a routine, build the type for this routine
and unify it with its type in the global context.
For instance if the function "f" has a parameter "x",
and returns an expression, take the type "s" for "x"
from the local context, the type "t" for the returned
expression. Build the type "s -> t" for the function
and unify that with any type information previously
known for "f". This requires that the body of the routine
has already been typechecked."""
param_types = []
for p in params.children:
param_types.append(self.context[p.value])
param_types = lang.gbs_type.GbsTupleType(param_types)
if prfn == 'procedure':
def_type = lang.gbs_type.GbsProcedureType(param_types)
elif prfn == 'function':
return_types = self._return_type(prfn, name, params, body)
def_type = lang.gbs_type.GbsFunctionType(param_types, return_types)
elif prfn == 'entrypoint' and (name.value == 'program'
or name.value == 'interactive'):
def_type = lang.gbs_type.GbsEntryPointType()
else:
assert False
expected = self.global_context[name.value].instantiate()
try:
lang.gbs_type.unify(expected, def_type)
if prfn == 'function': #[TODO] Check
freevars = def_type.freevars()
if len(freevars) > 0:
def_type = lang.gbs_type.GbsForallType(freevars, def_type)
self.global_context[name.value] = def_type
tree.type_annot = def_type
except lang.gbs_type.UnificationFailedException as e:
area = common.position.ProgramAreaNear(tree)
if prfn == 'procedure':
msg = i18n.i18n('procedure "%s" should take: %s\n' +
'But takes: %s') % (name.value,
expected.paramtype(),
def_type.paramtype())
else:
msg = i18n.i18n(
'function "%s" should take: %s and return: %s\n' +
'But takes: %s and returns: %s') % (
name.value, expected.paramtype(), expected.restype(),
def_type.paramtype(), def_type.restype())
self.error(GbsTypeInferenceException(msg, area))
def check_unused_assignVarName(self, tree, var=None):
if var is None:
var = tree.children[1].children[1]
if var.value not in tree.live_out:
msg = i18n.i18n('Variable "%s" defined but not used') % (var.value,)
area = common.position.ProgramAreaNear(tree)
raise GbsUnusedVarException(msg, area)
def gen_expression(self, tree):
"Returns the GEN set of an expression."
if tree.live_gen is not None:
return tree.live_gen
exptype = tree.children[0]
dispatch = {
'or': self.gen_binary_op,
'and': self.gen_binary_op,
'not': self.gen_unary_op,
'relop': self.gen_binary_op,
'addsub': self.gen_binary_op,
'mul': self.gen_binary_op,
'divmod': self.gen_binary_op,
'pow': self.gen_binary_op,
'listop': self.gen_binary_op,
'projection': self.gen_binary_op_left_only,
'constructor': self.gen_binary_op,
'match': self.gen_match,
'varName': self.gen_varName,
'funcCall': self.gen_funcCall,
'unaryMinus': self.gen_unary_op,
'literal': self.gen_literal,
'type': self.gen_type,
}
if exptype in dispatch:
tree.live_gen = dispatch[exptype](tree)
else:
msg = i18n.i18n('Unknown expression: %s') % (exptype,)
area = common.position.ProgramAreaNear(tree)
raise GbsLivenessException(msg, area)
return tree.live_gen