matmat: send stmt parse exception

[Stephen Siegel]

There is a problem parsing the statement
send(a[count], count + 1, count + 1);
The exception is

frederic:matmat siegel$ tass verify matmat-par_2_2_2.mmp 
+----------------------------------------------------------------------+
|           TASS: Toolkit for Accurate Scientific Software             |
|  version 1.0.r1027 (2009-08-26)        http://vsl.cis.udel.edu/tass  |
+----------------------------------------------------------------------+
                   command            : verify
                   model              : matmat-par_2_2_2.mmp(np=1)
                   Deadlock detection : absolute
                   Reduction          : standard
                   verbose:           : No
                   simplify:          : No
                   bufferBound        : 10
Exception in thread "main" java.lang.ClassCastException: edu.udel.cis.vsl.minimp.front.minimp.ast.expression.VariableExpression cannot be cast to edu.udel.cis.vsl.minimp.front.minimp.ast.expression.LhsExpressionIF
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processSendStmt(TreeParser.java:1159)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatement(TreeParser.java:904)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatementList(TreeParser.java:987)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processCompoundStmt(TreeParser.java:971)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatement(TreeParser.java:897)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processLoopStmt(TreeParser.java:1113)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processIterativeStmt(TreeParser.java:1046)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatement(TreeParser.java:900)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatementList(TreeParser.java:987)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processCompoundStmt(TreeParser.java:971)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatement(TreeParser.java:897)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processConditionStmt(TreeParser.java:998)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStatement(TreeParser.java:898)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processStmtList(TreeParser.java:475)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processFunctionBody(TreeParser.java:448)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processFunction(TreeParser.java:383)
	at edu.udel.cis.vsl.minimp.front.minimp.parser.TreeParser.processAST(TreeParser.java:132)
	at edu.udel.cis.vsl.minimp.Minimp.verify(Minimp.java:388)
	at edu.udel.cis.vsl.minimp.Minimp.main(Minimp.java:506)
frederic:matmat siegel$ 

[ywei]

Fixed. But since the language doesn't support the notion of null buffer. This example still doesn't work.