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

Example 26 with Expression

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

the class DmlSyntacticValidator method exitBuiltinFunctionExpression.

@Override
public void exitBuiltinFunctionExpression(BuiltinFunctionExpressionContext ctx) {
    // Double verification: verify passed function name is a (non-parameterized) built-in function.
    String[] names = getQualifiedNames(ctx.name.getText());
    if (names == null) {
        notifyErrorListeners("incorrect function name (only namespace " + namespaceResolutionOp() + " 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);
    castAsScalarDeprecationCheck(functionName, ctx);
    ConvertedDMLSyntax convertedSyntax = convertToDMLSyntax(ctx, namespace, functionName, paramExpression, ctx.name);
    if (convertedSyntax == null) {
        return;
    } else {
        functionName = convertedSyntax.functionName;
        paramExpression = convertedSyntax.paramExpression;
    }
    final ExpressionInfo info = ctx.info;
    Action f = new Action() {

        @Override
        public void execute(Expression e) {
            info.expr = e;
        }
    };
    boolean validBIF = buildForBuiltInFunction(ctx, functionName, paramExpression, f);
    if (validBIF)
        return;
    notifyErrorListeners("only builtin functions allowed as part of expression", ctx.start);
}

Example 27 with Expression

use of org.apache.sysml.parser.Expression in project incubator-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;
}

Example 28 with Expression

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

the class DmlSyntacticValidator method exitMultiIdExpression.

@Override
public void exitMultiIdExpression(MultiIdExpressionContext ctx) {
    ArrayList<Expression> values = new ArrayList<>();
    for (ExpressionContext elem : ctx.targetList) {
        values.add(elem.info.expr);
    }
    ctx.info.expr = new ExpressionList(values);
}

Example 29 with Expression

use of org.apache.sysml.parser.Expression in project incubator-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 30 with Expression

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

the class PydmlSyntacticValidator method exitForStatement.

@Override
public void exitForStatement(ForStatementContext ctx) {
    ForStatement forStmt = new ForStatement();
    DataIdentifier iterVar = new DataIdentifier(ctx.iterVar.getText());
    HashMap<String, String> parForParamValues = null;
    // 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);
    forStmt.setPredicate(predicate);
    if (ctx.body.size() > 0) {
        for (StatementContext stmtCtx : ctx.body) {
            forStmt.addStatementBlock(getStatementBlock(stmtCtx.info.stmt));
        }
        forStmt.mergeStatementBlocks();
    }
    ctx.info.stmt = forStmt;
    setFileLineColumn(ctx.info.stmt, ctx);
}