Support for data member usage within interpolated strings in C#

[aalramadan]

The following sample code:

public class MyClass
{
    private string foo = "Hello, world!";
    public void PrintFoo()
    {
        Console.WriteLine($"The value of foo is: {foo}");
    }
}

Gives:

<unit xmlns="http://www.srcML.org/srcML/src" revision="1.0.0" language="C#" filename="untitled">
<class><specifier>public</specifier> class <name>MyClass</name>
<block>{
    <decl_stmt><decl><type><specifier>private</specifier> <name>string</name></type> <name>foo</name> <init>= <expr><literal type="string">"Hello, world!"</literal></expr></init></decl>;</decl_stmt>
    <function><type><specifier>public</specifier> <name>void</name></type> <name>PrintFoo</name><parameter_list>()</parameter_list>
    <block>{<block_content>
        <expr_stmt><expr><call><name><name>Console</name><operator>.</operator><name>WriteLine</name></name><argument_list>(<argument><expr><name>$</name><literal type="string">"The value of foo is: {foo}"</literal></expr></argument>)</argument_list></call></expr>;</expr_stmt>
    </block_content>}</block></function>
}</block></class></unit>

Where it uses the field foo within an interpolated string.

As of now, Stereocode does not collect the usage of such data members (e.g., fields or methods).

A potential solution would be to collect every interpolated string and then extract the expressions between the { and } for further processing.

[mlcollard]

This does not belong in Stereocode. This belongs in srcml. Also, this is not the only case with embedded expressions. Also, it if it was solved here, it could be solved in srcml, and then benefit everyone.

[aalramadan]

I just left this here as a future note. There is a problem with tagging literals in interpolated strings in C#. I already posted an issue about it in srcML.