AST nodes in GitHub datasets

[Zhiyuan Wan]

Hi there,

I have submit a Boa example with input dataset "2015 September/GitHub (small)". The example counts the AST nodes to measure the projects. However, there is no output after compiling and executing. 

The public information of this job can be found at this page: http://boa.cs.iastate.edu/boa/index.php?q=boa/run. 

Meanwhile, when I run the example with SourceForge dataset, the output is generated successfully.

I was wondering why this happened. Thank you so much in advance. 

The example is one of the examples on the website (http://boa.cs.iastate.edu/boa/index.php?q=boa/run) and the code is pasted as below:

--------------------------------------------------------------------------

# What are the 5 largest projects, in terms of AST nodes?

# Output is in Millions of AST nodes.

p: Project = input;

top5: output top(5) of string weight int;

astCount := 0;

visit(p, visitor {

# only look at the latest snapshot

before n: CodeRepository -> {

snapshot := getsnapshot(n);

foreach (i: int; def(snapshot[i]))

visit(snapshot[i]);

stop;

}

# by default, count all visited nodes

before _ -> astCount++;

# these nodes are not part of the AST, so do nothing when visiting

before Project, ChangedFile -> ;

});

top5 << p.project_url weight astCount / 1000000;

------------------------------------------------------------------------

 

Best,

Zhiyuan

[Hoan Nguyen]

Removing the division by 1,000,000 (/ 1000000) at the end of the program fixes the problem.

The reason was that the all projects in 2015 September/GitHub (small) dataset have less than 1,000,000 AST nodes.

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[Zhiyuan Wan]

Thank you so much for your reply.

It works!

在 2016年4月15日星期五 UTC+8下午6:55:52，Hoan Nguyen写道：