fixes: #2142

[saikat041]

What I did

fixes: #2142

How I did it

vyper/vyper/parser/external_call.py

Line 92 in ce88755

types_list = output_type.members

Changed types_list = output_type.members to types_list = output_type.tuple_members(). In the case of struct, output_type.members returns a dict object, but types_list should be a list of types

How to verify it

Runt the following test case

import pytest

@pytest.mark.parametrize("string", ["a", "abc", "abcde", "potato"])
def test_string_inside_tuple(get_contract, string):
    code = f"""
struct Person:
    name: String[6]
    age: uint256

@external
def test_return() -> Person:
    return Person({{ name:"{string}", age:42 }})
    """
    c1 = get_contract(code)

    code = """
struct Person:
    name: String[6]
    age: uint256

interface jsonabi:
    def test_return() -> Person: view

@external
def test_values(a: address) -> Person:
    return jsonabi(a).test_return()
    """

    c2 = get_contract(code)
    assert c2.test_values(c1.address) == [string, 42]

[codecov-commenter]

Codecov Report

Merging #2143 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #2143   +/-   ##
=======================================
  Coverage   84.95%   84.95%           
=======================================
  Files          83       83           
  Lines        8333     8333           
  Branches     2012     2012           
=======================================
  Hits         7079     7079           
  Misses        752      752           
  Partials      502      502           

Impacted Files	Coverage Δ
vyper/parser/external_call.py	83.33% <100.00%> (ø)

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[fubuloubu]

Nice!