def eval(self, context):
# for for(var exp1, cond, exp2)
if self.declarations is not None:
for declaration in self.declarations:
declaration.eval(context)
# for for(exp1, cond, exp2)
if self.start_expression is not None:
ref = self.start_expression.eval(context)
js.get_value(ref)
result_value = js.EMPTY
while True:
if self.condition is not None:
condition_value = js.get_value(self.condition.eval(context))
if not condition_value:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
stmt = self.statement.eval(context)
if stmt.value is not js.EMPTY:
result_value = stmt.value
if stmt.type is js.BREAK:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
if js.is_abrupt(stmt) and stmt.type is not js.CONTINUE:
return stmt
if self.count_expression is not None:
count_expression_ref = self.count_expression.eval(context)
js.get_value(count_expression_ref)
def eval(self, context):
f = js.get_value(self.obj.eval(context))
s = None
if (not (self.scope == None)):
s = js.get_value(self.scope.eval(context))
return f.call(None, [
js.get_value(argument.eval(context))
for argument in self.argumentss
],
scope=s)
def eval(self, context):
ref = self.reference.eval(context)
value = js.get_value(self.expression.eval(context))
if self.op == '=':
js.put_value(ref, value)
return value
else:
new_value = perform_binary_op(self.op[:-1], js.get_value(ref),
value)
js.put_value(ref, new_value)
return new_value
def eval(self, context):
ref = self.reference.eval(context)
value = js.get_value(self.expression.eval(context))
if self.op == '=':
js.put_value(ref, value)
return value
else:
new_value = perform_binary_op(self.op[:-1],
js.get_value(ref),
value)
js.put_value(ref, new_value)
return new_value
def eval(self, context):
left = js.get_value(self.left_expression.eval(context))
right = js.get_value(self.right_expression.eval(context))
if self.op == '*':
return left * right
elif self.op == '/':
return left / right
elif self.op == '%':
return left % right
elif self.op == '+':
return left + right
elif self.op == '-':
return left - right
elif self.op == '<<':
return left << right
elif self.op == '>>':
return left >> right
elif self.op == '<':
return left < right
elif self.op == '<=':
return left <= right
elif self.op == '>':
return left > right
elif self.op == '>=':
return left >= right
elif self.op == 'instanceof':
# TODO
return False
elif self.op == 'in':
# TODO
return False
elif self.op == '==':
return left == right
elif self.op == '!=':
return left != right
elif self.op == '===':
return left == right
elif self.op == '!==':
return left != right
elif self.op == '&':
return left & right
elif self.op == '^':
return left ^ right
elif self.op == '|':
return left | right
elif self.op == '&&':
return left and right
elif self.op == '||':
return left or right
else:
raise SyntaxError('Unknown binary operand: %r' % self.op)
def eval(self, context):
left = js.get_value(self.left_expression.eval(context))
right = js.get_value(self.right_expression.eval(context))
if self.op == '*':
return left * right
elif self.op == '/':
return left / right
elif self.op == '%':
return left % right
elif self.op == '+':
return left + right
elif self.op == '-':
return left - right
elif self.op == '<<':
return left << right
elif self.op == '>>':
return left >> right
elif self.op == '<':
return left < right
elif self.op == '<=':
return left <= right
elif self.op == '>':
return left > right
elif self.op == '>=':
return left >= right
elif self.op == 'instanceof':
# TODO
return False
elif self.op == 'in':
# TODO
return False
elif self.op == '==':
return left == right
elif self.op == '!=':
return left != right
elif self.op == '===':
return left == right
elif self.op == '!==':
return left != right
elif self.op == '&':
return left & right
elif self.op == '^':
return left ^ right
elif self.op == '|':
return left | right
elif self.op == '&&':
return left and right
elif self.op == '||':
return left or right
else:
raise SyntaxError('Unknown binary operand: %r' % self.op)
def eval(self, expression, context=None):
if context is None:
context = js.ExecutionContext({})
if not isinstance(context, js.ExecutionContext):
context = js.ExecutionContext(context)
expression_ast = self.parser.parse(expression)
return js.get_value(expression_ast.eval(context))
def eval(self, stmt, context=None):
if context is None:
context = js.ExecutionContext({})
if not isinstance(context, js.ExecutionContext):
context = js.ExecutionContext(context)
stmt_ast = self.parser.parse(stmt)
return js.get_value(stmt_ast.eval(context))
def eval(self, expression, context=None):
if context is None:
context = js.ExecutionContext({})
if not isinstance(context, js.ExecutionContext):
context = js.ExecutionContext(context)
expression_ast = self.parser.parse(expression)
return js.get_value(expression_ast.eval(context))
def eval(self, stmt, context=None):
if context is None:
context = js.ExecutionContext({})
if not isinstance(context, js.ExecutionContext):
context = js.ExecutionContext(context)
stmt_ast = self.parser.parse(stmt)
return js.get_value(stmt_ast.eval(context))
def eval(self, context):
if self.expression is None:
return js.Completion(js.RETURN, js.UNDEFINED, js.EMPTY)
else:
return js.Completion(js.RETURN,
js.get_value(self.expression.eval(context)),
js.EMPTY)
def eval(self, context):
if self.expression is None:
return js.Completion(js.RETURN, js.UNDEFINED, js.EMPTY)
else:
return js.Completion(js.RETURN,
js.get_value(self.expression.eval(context)),
js.EMPTY)
def eval(self, context):
result_value = js.EMPTY
while True:
condition_value = js.get_value(self.condition.eval(context))
if not condition_value:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
stmt = self.statement.eval(context)
if stmt.value is not js.EMPTY:
result_value = stmt.value
if stmt.type is js.BREAK:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
elif js.is_abrupt(stmt) and stmt.type is not js.CONTINUE:
return stmt
def eval(self, context):
result_value = js.EMPTY
while True:
condition_value = js.get_value(self.condition.eval(context))
if not condition_value:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
stmt = self.statement.eval(context)
if stmt.value is not js.EMPTY:
result_value = stmt.value
if stmt.type is js.BREAK:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
elif js.is_abrupt(stmt) and stmt.type is not js.CONTINUE:
return stmt
def eval(self, context):
cntx = js.ExecutionContext(dict(), parent=context)
result_value = js.EMPTY
firstst = self.first.eval(cntx)
while True:
condition_value = js.get_value(self.condition.eval(cntx))
#print("COND",condition_value)
if not condition_value:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
stmt = self.statement.eval(cntx)
if stmt.value is not js.EMPTY:
result_value = stmt.value
if stmt.type is js.BREAK:
return js.Completion(js.NORMAL, result_value, js.EMPTY)
elif js.is_abrupt(stmt) and stmt.type is not js.CONTINUE:
return stmt
nextst = self.then.eval(cntx)
def eval(self, context):
expr = self.expression.eval(context)
value = js.get_value(expr)
if self.op == 'delete':
# TODO
return True
elif self.op == 'void':
return js.UNDEFINED
elif self.op == 'typeof':
# TODO
return 'object'
elif self.op == '++':
new_value = value + 1
js.put_value(expr, new_value)
return new_value
elif self.op == '--':
new_value = value - 1
js.put_value(expr, new_value)
return new_value
elif self.op == 'postfix++':
old_value = value
js.put_value(expr, old_value + 1)
return old_value
elif self.op == 'postfix--':
old_value = value
js.put_value(expr, old_value - 1)
return old_value
elif self.op == '+':
return +value
elif self.op == '-':
return -value
elif self.op == '~':
return ~value
elif self.op == '!':
return not value
else:
raise SyntaxError('Unknown unary operand: %s' % self.op)
def eval(self, context):
expr = self.expression.eval(context)
value = js.get_value(expr)
if self.op == 'delete':
# TODO
return True
elif self.op == 'void':
return js.UNDEFINED
elif self.op == 'typeof':
# TODO
return 'object'
elif self.op == '++':
new_value = value + 1
js.put_value(expr, new_value)
return new_value
elif self.op == '--':
new_value = value - 1
js.put_value(expr, new_value)
return new_value
elif self.op == 'postfix++':
old_value = value
js.put_value(expr, old_value + 1)
return old_value
elif self.op == 'postfix--':
old_value = value
js.put_value(expr, old_value - 1)
return old_value
elif self.op == '+':
return +value
elif self.op == '-':
return -value
elif self.op == '~':
return ~value
elif self.op == '!':
return not value
else:
raise SyntaxError('Unknown unary operand: %s' % self.op)
def eval(self, context):
condition_value = js.get_value(self.condition.eval(context))
if condition_value:
return js.get_value(self.true_expression.eval(context))
else:
return js.get_value(self.false_expression.eval(context))
def get_item_value(self, item, context):
return js.get_value(item.eval(context)) if item is not None else js.UNDEFINED
def eval(self, context):
f = js.get_value(self.obj.eval(context))
return f.call(None, [
js.get_value(argument.eval(context)) for argument in self.arguments
])
def eval(self, context):
base_value = js.get_value(self.obj.eval(context))
property_name_value = js.get_value(self.key.eval(context))
return js.Reference(name=property_name_value, base=base_value)
def eval(self, context):
items = dict((name, js.get_value(e.eval(context)))
for name, e in self.items.items())
return js.Object(items=items)
def get_item_value(self, item, context):
return js.get_value(
item.eval(context)) if item is not None else js.UNDEFINED
def eval(self, context):
condition_value = js.get_value(self.condition.eval(context))
if condition_value:
return self.true_statement.eval(context)
else:
return self.false_statement.eval(context)
def eval(self, context):
items = dict((name, js.get_value(e.eval(context))) for name, e in self.items.items())
return js.Object(items=items)
def eval(self, context):
return js.Completion(js.NORMAL,
js.get_value(self.expression.eval(context)),
js.EMPTY)
def eval(self, context):
condition_value = js.get_value(self.condition.eval(context))
if condition_value:
return js.get_value(self.true_expression.eval(context))
else:
return js.get_value(self.false_expression.eval(context))
def eval(self, context):
base_value = js.get_value(self.obj.eval(context))
property_name_value = js.get_value(self.key.eval(context))
return js.Reference(name=property_name_value, base=base_value)
def eval(self, context):
ref = self.identifier.eval(context)
value = js.get_value(self.initialiser.eval(context))
js.put_value(ref, value)
return js.Completion(js.NORMAL, ref.name, js.EMPTY)
def eval(self, context):
f = js.get_value(self.obj.eval(context))
return f.call(None, [js.get_value(argument.eval(context)) for argument in self.arguments])
def eval(self, context):
condition_value = js.get_value(self.condition.eval(context))
if condition_value:
return self.true_statement.eval(context)
else:
return self.false_statement.eval(context)
def eval(self, context):
ref = self.identifier.eval(context)
value = js.get_value(self.initialiser.eval(context))
js.put_value(ref, value)
return js.Completion(js.NORMAL, ref.name, js.EMPTY)
def eval(self, context):
return js.Completion(js.NORMAL,
js.get_value(self.expression.eval(context)),
js.EMPTY)
def eval(self, context):
# TODO: Ellision
return js.Array(items=[js.get_value(item.eval(context)) for item in self.items])
