ShiftLeftSecurity / ShiftLeftSecurity/codepropertygraph

Class member function calls don't map to class

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Dominant language
Scala
Stars
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Forks
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Avg merge
18h 29m
Merged PRs (30d)
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Description

Parsing this code:

1  class MyClass
2  {
3  public:
4      int bar()
5      {
6          return 1;
7      }
8  };
9
10 void myfunc()
11 {
12     MyClass *foo = new MyClass();
13     foo->bar();
14 }

I expect the CALL node name on line 13 to be MyClass::bar(), but the name is foo->bar(). Further, an internal METHOD node is correctly created for MyClass::bar(), but there is also one created for an external function called foo->bar().

Is this expected/correct? If yes, is there a way to determine that CALL foo->bar() node is referring to type MyClass, or would one need to implement some type propagation atop the graph to arrive at that?

Thanks!

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the reported C++ snippet and inspecting the generated CALL and METHOD nodes for lines 4 and 13. The issue names no source files or tests, so first locate the parser and graph-generation entry points; done would require an agreed way to represent or resolve the call from foo->bar() to MyClass::bar().

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, scala
Domain
devtools
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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