def visit_JoinedStr(self, n: ast3.JoinedStr) -> Expression:
result_expression = StrExpr('') # type: Expression
for value_expr in self.translate_expr_list(n.values):
string_method = MemberExpr(value_expr, '__str__')
string_method.set_line(value_expr)
stringified_value_expr = CallExpr(string_method, [], [])
stringified_value_expr.set_line(value_expr)
result_expression = OpExpr('+', result_expression,
stringified_value_expr)
result_expression.set_line(value_expr)
return result_expression
def visit_JoinedStr(self, n: ast3.JoinedStr) -> Expression:
arg_count = len(n.values)
format_string = StrExpr('{}' * arg_count)
format_string.set_line(n.lineno, n.col_offset)
format_method = MemberExpr(format_string, 'format')
format_method.set_line(format_string)
format_args = self.translate_expr_list(n.values)
format_arg_kinds = [ARG_POS] * arg_count
result_expression = CallExpr(format_method, format_args,
format_arg_kinds)
return result_expression
def visit_JoinedStr(self, n: ast3.JoinedStr) -> Expression:
# Each of n.values is a str or FormattedValue; we just concatenate
# them all using ''.join.
empty_string = StrExpr('')
empty_string.set_line(n.lineno, n.col_offset)
strs_to_join = ListExpr(self.translate_expr_list(n.values))
strs_to_join.set_line(empty_string)
join_method = MemberExpr(empty_string, 'join')
join_method.set_line(empty_string)
result_expression = CallExpr(join_method, [strs_to_join],
[ARG_POS], [None])
return result_expression
def visit_FormattedValue(self, n: ast3.FormattedValue) -> Expression:
# A FormattedValue is a component of a JoinedStr, or it can exist
# on its own. We translate them to individual '{}'.format(value)
# calls -- we don't bother with the conversion/format_spec fields.
exp = self.visit(n.value)
exp.set_line(n.lineno, n.col_offset)
format_string = StrExpr('{}')
format_string.set_line(n.lineno, n.col_offset)
format_method = MemberExpr(format_string, 'format')
format_method.set_line(format_string)
result_expression = CallExpr(format_method, [exp], [ARG_POS])
return result_expression
def visit_JoinedStr(self, n: ast3.JoinedStr) -> Expression:
# Each of n.values is a str or FormattedValue; we just concatenate
# them all using ''.join.
empty_string = StrExpr('')
empty_string.set_line(n.lineno, n.col_offset)
strs_to_join = ListExpr(self.translate_expr_list(n.values))
strs_to_join.set_line(empty_string)
join_method = MemberExpr(empty_string, 'join')
join_method.set_line(empty_string)
result_expression = CallExpr(join_method,
[strs_to_join],
[ARG_POS],
[None])
return result_expression
def visit_FormattedValue(self, n: ast3.FormattedValue) -> Expression:
# A FormattedValue is a component of a JoinedStr, or it can exist
# on its own. We translate them to individual '{}'.format(value)
# calls -- we don't bother with the conversion/format_spec fields.
exp = self.visit(n.value)
exp.set_line(n.lineno, n.col_offset)
format_string = StrExpr('{}')
format_string.set_line(n.lineno, n.col_offset)
format_method = MemberExpr(format_string, 'format')
format_method.set_line(format_string)
result_expression = CallExpr(format_method,
[exp],
[ARG_POS],
[None])
return result_expression
