Re: getting dependency graph of SML source files from CM

If you need the order of source files you can do like this

o remove all .cm directories
o run CM.make
o look at [compiling code.sml] type of messages. that is the order.

I don't know if the dependency graph can be printed in any way.

  - Vesa

On Mon, 3 Aug 2009, Joe Wells wrote:

> I'm using SML/NJ 110.54.
>
> I want to get output like this for all the files referenced by a
> particular CM file:
>
>  file1.sml depends on file2.sml and file2.sig
>  file2.sml depends on file3.sml and file3.sig
>
> Is there any way to get CM to give me this information?  I need it for
> a program analysis tool.  It is important to do things in the same way
> as CM does them.
>
> I can use CM.sources like this to get the list of SML source files CM
> will use:
>
>    CM.sources NONE "sources.cm"
>  ? SOME
>        [{class="sml",derived=false,file="file1.sml"},
>         {class="cm",derived=false,file="sources.cm"},
>         {class="sml",derived=false,file="file2.sml"},
>         {class="sml",derived=false,file="file2.sig"},
>         {class="sml",derived=false,file="file3.sml"},
>         {class="sml",derived=false,file="file3.sig"},...]
>
> I do not know if I can depend on the order of the items in the list
> output by CM.sources.
>
> I can use CM.Graph like this to get the dependency graph CM uses to
> decide which order the SML files must be compiled in:
>
>    CM.Graph.graph "sources.cm"
>  ? SOME
>      {graph=GRAPH
>               {defs=[DEF {lhs="str2",rhs=SYM (STR,"TextIO")},
>                      DEF {lhs="ss1",rhs=SYMS ["str2"]},
>                      DEF {lhs="e3",rhs=IMPORT {lib="l4",syms="ss1"}},
>                      DEF {lhs="str6",rhs=SYM (STR,"String")},
>                      DEF {lhs="ss5",rhs=SYMS ["str6"]},
>                      ...,
>                      DEF {lhs="e21",rhs=IMPORT {lib="l22",syms="ss19"}},
>                      DEF {lhs="str24",rhs=SYM (STR,"Option")},
>                      DEF {lhs="ss23",rhs=SYMS ["str24"]},
>                      ...,
>                      DEF
>                        {lhs="e26",
>                         rhs=COMPILE
>                               {env="e21",src=("file4.sig",false),syms="ss27"}},
>                      ...],
>                export="e0",
>                imports=["l4","l22","l214","l147"]},
>       imports=[-,-,-,-],
>       nativesrc=fn}
>
> This looks like it probably contains the information I want.
>
> Unfortunately, the type of the graph record component is reported as
> ?.PortableGraph.graph, and there seem to be no accessors provided for
> this type.
>
> I can get output like the above from CM.Graph.graph by setting
> Control.Print.printDepth and Control.Print.printLength and using the
> top-level REPL's pretty printer.  If needed, I could then use the
> compiler together with my own definition of the graph datatype to
> parse and load the data, but then I would need to understand the data
> structure to figure out how to extract the inter-file dependencies.
> Also, I'm a bit worried about the value of ?[-,-,-,-]? for the imports
> field and what might be hidden behind the hyphens.
>
> Thanks for any time you can spend on answering my question!
>
> -- 
> Joe
>
>
> -- 
> Heriot-Watt University is a Scottish charity
> registered under charity number SC000278.
>
>
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