Examples with Expression org.apache.sysml.parser.Expression used on opensource projects

Example 36 with Expression

use of org.apache.sysml.parser.Expression in project systemml by apache.

the class CommonSyntacticValidator method exitAssignmentStatementHelper.

protected void exitAssignmentStatementHelper(ParserRuleContext ctx, String lhs, ExpressionInfo dataInfo, Token lhsStart, ExpressionInfo rhs, StatementInfo info) {
    if (lhs.startsWith("$")) {
        notifyErrorListeners("assignment of commandline parameters is not allowed. (Quickfix: try using someLocalVariable=ifdef(" + lhs + ", default value))", ctx.start);
        return;
    }
    DataIdentifier target = null;
    if (dataInfo.expr instanceof DataIdentifier) {
        target = (DataIdentifier) dataInfo.expr;
        Expression source = rhs.expr;
        try {
            info.stmt = new AssignmentStatement(ctx, target, source, currentFile);
        } catch (LanguageException e) {
            // TODO: extract more meaningful info from this exception.
            notifyErrorListeners("invalid assignment", lhsStart);
            return;
        }
    } else {
        notifyErrorListeners("incorrect lvalue in assignment statement", lhsStart);
        return;
    }
}

Example 37 with Expression

use of org.apache.sysml.parser.Expression in project systemml by apache.

the class CommonSyntacticValidator method functionCallAssignmentStatementHelper.

protected void functionCallAssignmentStatementHelper(final ParserRuleContext ctx, Set<String> printStatements, Set<String> outputStatements, final Expression dataInfo, final StatementInfo info, final Token nameToken, Token targetListToken, String namespace, String functionName, ArrayList<ParameterExpression> paramExpression, boolean hasLHS) {
    ConvertedDMLSyntax convertedSyntax = convertToDMLSyntax(ctx, namespace, functionName, paramExpression, nameToken);
    if (convertedSyntax == null) {
        return;
    } else {
        namespace = convertedSyntax.namespace;
        functionName = convertedSyntax.functionName;
        paramExpression = convertedSyntax.paramExpression;
    }
    // For builtin functions without LHS
    if (namespace.equals(DMLProgram.DEFAULT_NAMESPACE) && !functions.contains(functionName)) {
        if (printStatements.contains(functionName)) {
            setPrintStatement(ctx, functionName, paramExpression, info);
            return;
        } else if (outputStatements.contains(functionName)) {
            setOutputStatement(ctx, paramExpression, info);
            return;
        }
    }
    DataIdentifier target = null;
    if (dataInfo instanceof DataIdentifier) {
        target = (DataIdentifier) dataInfo;
    } else if (dataInfo != null) {
        notifyErrorListeners("incorrect lvalue for function call ", targetListToken);
        return;
    }
    // For builtin functions with LHS
    if (namespace.equals(DMLProgram.DEFAULT_NAMESPACE) && !functions.contains(functionName)) {
        Expression e = buildForBuiltInFunction(ctx, functionName, paramExpression);
        if (e != null) {
            setAssignmentStatement(ctx, info, target, e);
            return;
        }
    }
    // handle user-defined functions
    setAssignmentStatement(ctx, info, target, createFunctionCall(ctx, namespace, functionName, paramExpression));
}

Example 38 with Expression

use of org.apache.sysml.parser.Expression in project systemml by apache.

the class DmlSyntacticValidator method exitFunctionCallMultiAssignmentStatement.

@Override
public void exitFunctionCallMultiAssignmentStatement(FunctionCallMultiAssignmentStatementContext ctx) {
    String[] names = getQualifiedNames(ctx.name.getText());
    if (names == null) {
        notifyErrorListeners("incorrect function name (only namespace.functionName allowed. Hint: If you are trying to use builtin functions, you can skip the namespace)", ctx.name);
        return;
    }
    String namespace = names[0];
    String functionName = names[1];
    ArrayList<ParameterExpression> paramExpression = getParameterExpressionList(ctx.paramExprs);
    ConvertedDMLSyntax convertedSyntax = convertToDMLSyntax(ctx, namespace, functionName, paramExpression, ctx.name);
    if (convertedSyntax == null) {
        return;
    } else {
        namespace = convertedSyntax.namespace;
        functionName = convertedSyntax.functionName;
        paramExpression = convertedSyntax.paramExpression;
    }
    FunctionCallIdentifier functCall = new FunctionCallIdentifier(paramExpression);
    functCall.setFunctionName(functionName);
    functCall.setFunctionNamespace(namespace);
    final ArrayList<DataIdentifier> targetList = new ArrayList<>();
    for (DataIdentifierContext dataCtx : ctx.targetList) {
        if (dataCtx.dataInfo.expr instanceof DataIdentifier) {
            targetList.add((DataIdentifier) dataCtx.dataInfo.expr);
        } else {
            notifyErrorListeners("incorrect type for variable ", dataCtx.start);
            return;
        }
    }
    if (namespace.equals(DMLProgram.DEFAULT_NAMESPACE)) {
        Expression e = buildForBuiltInFunction(ctx, functionName, paramExpression);
        if (e != null) {
            setMultiAssignmentStatement(targetList, e, ctx, ctx.info);
            return;
        }
    }
    // Override default namespace for imported non-built-in function
    String inferNamespace = (sourceNamespace != null && sourceNamespace.length() > 0 && DMLProgram.DEFAULT_NAMESPACE.equals(namespace)) ? sourceNamespace : namespace;
    functCall.setFunctionNamespace(inferNamespace);
    setMultiAssignmentStatement(targetList, functCall, ctx, ctx.info);
}

Example 39 with Expression

use of org.apache.sysml.parser.Expression in project systemml by apache.

the class DmlSyntacticValidator method exitIfdefAssignmentStatement.

@Override
public void exitIfdefAssignmentStatement(IfdefAssignmentStatementContext ctx) {
    if (!ctx.commandLineParam.getText().startsWith("$")) {
        notifyErrorListeners("the first argument of ifdef function should be a commandline argument parameter (which starts with $)", ctx.commandLineParam.start);
        return;
    }
    if (ctx.targetList == null) {
        notifyErrorListeners("ifdef assignment needs an lvalue ", ctx.start);
        return;
    }
    String targetListText = ctx.targetList.getText();
    if (targetListText.startsWith("$")) {
        notifyErrorListeners("lhs of ifdef function cannot be a commandline parameters. Use local variable instead", ctx.start);
        return;
    }
    DataIdentifier target = null;
    if (ctx.targetList.dataInfo.expr instanceof DataIdentifier) {
        target = (DataIdentifier) ctx.targetList.dataInfo.expr;
        Expression source = null;
        if (ctx.commandLineParam.dataInfo.expr != null) {
            // Since commandline parameter is set
            // The check of following is done in fillExpressionInfoCommandLineParameters:
            // Command line param cannot be empty string
            // If you want to pass space, please quote it
            source = ctx.commandLineParam.dataInfo.expr;
        } else {
            source = ctx.source.info.expr;
        }
        try {
            ctx.info.stmt = new AssignmentStatement(ctx, target, source, currentFile);
        } catch (LanguageException e) {
            notifyErrorListeners("invalid assignment for ifdef function", ctx.targetList.start);
            return;
        }
    } else {
        notifyErrorListeners("incorrect lvalue in ifdef function ", ctx.targetList.start);
        return;
    }
}

Example 40 with Expression

use of org.apache.sysml.parser.Expression in project systemml by apache.

the class DmlSyntacticValidator method exitParForStatement.

@Override
public void exitParForStatement(ParForStatementContext ctx) {
    ParForStatement parForStmt = new ParForStatement();
    DataIdentifier iterVar = new DataIdentifier(ctx.iterVar.getText());
    HashMap<String, String> parForParamValues = new HashMap<>();
    if (ctx.parForParams != null && ctx.parForParams.size() > 0) {
        for (StrictParameterizedExpressionContext parForParamCtx : ctx.parForParams) {
            String paramVal = parForParamCtx.paramVal.getText();
            if (argVals.containsKey(paramVal))
                paramVal = argVals.get(paramVal);
            parForParamValues.put(parForParamCtx.paramName.getText(), paramVal);
        }
    }
    // 1/-1
    Expression incrementExpr = null;
    if (ctx.iterPred.info.increment != null) {
        incrementExpr = ctx.iterPred.info.increment;
    }
    IterablePredicate predicate = new IterablePredicate(ctx, iterVar, ctx.iterPred.info.from, ctx.iterPred.info.to, incrementExpr, parForParamValues, currentFile);
    parForStmt.setPredicate(predicate);
    if (ctx.body.size() > 0) {
        for (StatementContext stmtCtx : ctx.body) {
            parForStmt.addStatementBlock(getStatementBlock(stmtCtx.info.stmt));
        }
        parForStmt.mergeStatementBlocks();
    }
    ctx.info.stmt = parForStmt;
}