Unable to find associated methods for types in some cases

[emilyaherbert]

Potentially related: a recurring issue where unwrap() can't be found when trying to call result.unwrap(). Turns out this can be worked around by explicitly annotating the type:

let sender: Result<Sender, AuthError> = msg_sender(); // if you remove `: Result<Sender, AuthError>` this doesn't work!
sender.unwrap();

Originally posted by @adlerjohn in #1734 (comment)

[mohammadfawaz]

Dup of #1628

[emilyaherbert]

Reopening because it is actually not a direct dupe of #1628, just related to it.

[bitzoic]

I am getting method not found for the following snippet of code:

struct MyStruct {
    int_option: Option<u64>
}

storage {
    stored_struct: MyStruct,
}

abi MyContract {
    fn test_function() -> bool;
}

impl MyContract for Contract {
    fn test_function() -> bool {

        let stored_struct = storage.stored_struct;
        let stored_option_in_struct = stored_struct.int_option;
        require(stored_option_in_struct.is_some(), "Error");

        true
    }
}

[Braqzen]

I am getting method not found for the following snippet of code:

struct MyStruct {
    int_option: Option<u64>
}

storage {
    stored_struct: MyStruct,
}

abi MyContract {
    fn test_function() -> bool;
}

impl MyContract for Contract {
    fn test_function() -> bool {

        let stored_struct = storage.stored_struct;
        let stored_option_in_struct = stored_struct.int_option;
        require(stored_option_in_struct.is_some(), "Error");

        true
    }
}

use std::option::*;

[emilyaherbert]

@Braqzen the bug here was coming from a different problem---i.e. manually annotating the type made this example compile. There is a PR up right now that fixes this though.