Examples with BLangExpression org.wso2.ballerinalang.compiler.tree.expressions.BLangExpression used on opensource projects

Example 56 with BLangExpression

use of org.wso2.ballerinalang.compiler.tree.expressions.BLangExpression in project ballerina by ballerina-lang.

the class EndpointDesugar method generateEndpointInit.

private BLangBlockStmt generateEndpointInit(BLangEndpoint endpoint, SymbolEnv env, BSymbol encSymbol) {
    final String epName = endpoint.name.value;
    final DiagnosticPos pos = endpoint.pos;
    BLangBlockStmt temp = new BLangBlockStmt();
    final BLangVariable epVariable = ASTBuilderUtil.createVariable(pos, epName, endpoint.symbol.type);
    epVariable.symbol = (BVarSymbol) symResolver.lookupMemberSymbol(pos, encSymbol.scope, env, names.fromString(epName), SymTag.VARIABLE);
    final BLangExpression newExpr;
    if (endpoint.configurationExpr != null && endpoint.configurationExpr.getKind() != NodeKind.RECORD_LITERAL_EXPR) {
        // Handle Endpoint Assignment.
        newExpr = endpoint.configurationExpr;
    } else if (endpoint.configurationExpr != null && endpoint.configurationExpr.getKind() == NodeKind.RECORD_LITERAL_EXPR) {
        // Handle Endpoint initialization.
        newExpr = ASTBuilderUtil.createEmptyRecordLiteral(pos, endpoint.symbol.type);
    } else {
        newExpr = null;
    }
    // EPType ep_name = {};
    if (env.enclInvokable != null) {
        // In callable unit, endpoint is same scope variable.
        final BLangVariableDef epNewStmt = ASTBuilderUtil.createVariableDefStmt(pos, temp);
        epNewStmt.var = epVariable;
        epNewStmt.var.expr = newExpr;
    } else {
        // This is an init function. ep variable is defined in outside.
        if (env.enclService != null) {
            // Add to endpoint variable to relevant location
            final BLangVariableDef epVarDef = ASTBuilderUtil.createVariableDef(pos);
            epVarDef.var = epVariable;
            env.enclService.vars.add(epVarDef);
        }
        final BLangAssignment assignmentStmt = ASTBuilderUtil.createAssignmentStmt(pos, temp);
        assignmentStmt.varRefs.add(ASTBuilderUtil.createVariableRef(pos, epVariable.symbol));
        assignmentStmt.expr = newExpr;
    }
    return temp;
}

Example 57 with BLangExpression

use of org.wso2.ballerinalang.compiler.tree.expressions.BLangExpression in project ballerina by ballerina-lang.

the class SiddhiQueryBuilder method visit.

@Override
public void visit(BLangStreamingInput streamingInput) {
    streamingInputClause = new StringBuilder();
    streamingInputClause.append(((BLangSimpleVarRef) streamingInput.getStreamReference()).getVariableName().value);
    WhereNode beforeWhereNode = streamingInput.getBeforeStreamingCondition();
    WhereNode afterWhereNode = streamingInput.getAfterStreamingCondition();
    WindowClauseNode windowClauseNode = streamingInput.getWindowClause();
    if (beforeWhereNode != null) {
        ((BLangWhere) beforeWhereNode).accept(this);
        streamingInputClause.append(" ").append(whereClause);
    }
    if (windowClauseNode != null) {
        ((BLangWindow) windowClauseNode).accept(this);
        streamingInputClause.append(" ").append(windowClause);
    }
    if (afterWhereNode != null) {
        ((BLangWhere) afterWhereNode).accept(this);
        streamingInputClause.append(" ").append(whereClause);
    }
    if (streamingInput.getAlias() != null) {
        streamingInputClause.append(" as ").append(streamingInput.getAlias()).append(" ");
    }
    BLangExpression streamReference = (BLangExpression) streamingInput.getStreamReference();
    if (streamReference != null) {
        streamReference.accept(this);
        streamIds.add(varRef);
        varRef = "";
        addInRefs(streamReference);
    }
}

Example 58 with BLangExpression

use of org.wso2.ballerinalang.compiler.tree.expressions.BLangExpression in project ballerina by ballerina-lang.

the class SiddhiQueryBuilder method visit.

@Override
public void visit(BLangSelectExpression selectExpression) {
    BLangExpression expr = (BLangExpression) selectExpression.getExpression();
    selectExpr = new StringBuilder();
    addVarRefToClauseBuilder(expr, selectExpr);
    String identifier = selectExpression.getIdentifier();
    if (identifier != null) {
        selectExpr.append(" as ").append(identifier);
    }
}

Example 59 with BLangExpression

use of org.wso2.ballerinalang.compiler.tree.expressions.BLangExpression in project ballerina by ballerina-lang.

the class BLangPackageBuilder method createBracedOrTupleExpression.

public void createBracedOrTupleExpression(DiagnosticPos pos, Set<Whitespace> ws, int numberOfExpressions) {
    final BLangBracedOrTupleExpr expr = (BLangBracedOrTupleExpr) TreeBuilder.createBracedOrTupleExpression();
    expr.pos = pos;
    expr.addWS(ws);
    for (int i = 0; i < numberOfExpressions; i++) {
        expr.expressions.add(0, (BLangExpression) exprNodeStack.pop());
    }
    addExpressionNode(expr);
}

Example 60 with BLangExpression

use of org.wso2.ballerinalang.compiler.tree.expressions.BLangExpression in project ballerina by ballerina-lang.

the class BLangPackageBuilder method createTypeCastExpr.

public void createTypeCastExpr(DiagnosticPos pos, Set<Whitespace> ws) {
    BLangTypeCastExpr typeCastNode = (BLangTypeCastExpr) TreeBuilder.createTypeCastNode();
    typeCastNode.pos = pos;
    typeCastNode.addWS(ws);
    typeCastNode.expr = (BLangExpression) exprNodeStack.pop();
    typeCastNode.typeNode = (BLangType) typeNodeStack.pop();
    addExpressionNode(typeCastNode);
}