[Swift-devel] unitialized error when swift app returning a non-file type

[Mihael Hategan]

It's a bug. Working on it.

On Mon, 2013-04-01 at 15:50 -0500, Ketan Maheshwari wrote:
> Hi,
> 
> Wondering if this is an expected behavior. I intend a Swift app to return a
> variable which I then receive in a Swift variable. This variable is
> uninitialized since initializing it would close it out.
> 
> Here is a minuscule example:
> 
> app (string b) s_app(string a){
>  str_app a b;
> }
> 
> string[] b;
> 
> foreach i in [0:10]{
>    b[i]= s_app("hello");
> }
> 
> The s_app links to a bash script as follows:
> 
> #!/bin/bash
> 
> $2=$1
> 
> On running this:
> 
> $ swift str.swift -tc.file tc -sites.file sites.xml
> Could not start execution
> Uninitalized variable: b
> 
> 
> The detailed exception from the log is:
> 2013-04-01 15:47:33,755-0500 DEBUG Loader Detailed exception:
> org.griphyn.vdl.karajan.CompilationException: Uninitalized variable: b
>     at
> org.griphyn.vdl.engine.VariableScope.undeclare(VariableScope.java:1143)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1119)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1115)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1115)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1085)
>     at org.griphyn.vdl.engine.Karajan.program(Karajan.java:316)
>     at org.griphyn.vdl.engine.Karajan.compile(Karajan.java:137)
>     at org.griphyn.vdl.karajan.Loader.compile(Loader.java:351)
>     at org.griphyn.vdl.karajan.Loader.main(Loader.java:172)
> 
> Thanks for any help.
> 
> Hi,
> 
> 
> Wondering if this is an expected behavior. I intend a Swift app to
> return a variable which I then receive in a Swift variable. This
> variable is uninitialized since initializing it would close it out. 
> 
> 
> Here is a minuscule example:
> 
> 
> app (string b) s_app(string a){
>  str_app a b;
> }
> 
> 
> string[] b;
> 
> 
> foreach i in [0:10]{
>    b[i]= s_app("hello");
> }
> 
> 
> The s_app links to a bash script as follows:
> 
> 
> #!/bin/bash
> 
> 
> $2=$1
> 
> 
> On running this:
> 
> 
> $ swift str.swift -tc.file tc -sites.file sites.xml
> Could not start execution
> Uninitalized variable: b
> 
> 
> 
> 
> The detailed exception from the log is:
> 2013-04-01 15:47:33,755-0500 DEBUG Loader Detailed exception:
> org.griphyn.vdl.karajan.CompilationException: Uninitalized variable: b
>     at
> org.griphyn.vdl.engine.VariableScope.undeclare(VariableScope.java:1143)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1119)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1115)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1115)
>     at
> org.griphyn.vdl.engine.VariableScope.analyzeWriters(VariableScope.java:1085)
>     at org.griphyn.vdl.engine.Karajan.program(Karajan.java:316)
>     at org.griphyn.vdl.engine.Karajan.compile(Karajan.java:137)
>     at org.griphyn.vdl.karajan.Loader.compile(Loader.java:351)
>     at org.griphyn.vdl.karajan.Loader.main(Loader.java:172)
> 
> 
> Thanks for any help.
> 
> 
> -- 
> Ketan
> 
> 
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