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

Example 36 with BLangExpression

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

the class CodeGenerator method visit.

@Override
public void visit(BLangLocalXMLNS xmlnsNode) {
    RegIndex lvIndex = getLVIndex(TypeTags.STRING);
    BLangExpression nsURIExpr = xmlnsNode.namespaceURI;
    nsURIExpr.regIndex = createLHSRegIndex(lvIndex);
    genNode(nsURIExpr, env);
    BXMLNSSymbol nsSymbol = (BXMLNSSymbol) xmlnsNode.symbol;
    nsSymbol.nsURIIndex = lvIndex;
}

Example 37 with BLangExpression

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

the class CodeGenerator method visit.

@Override
public void visit(BLangJSONLiteral jsonLiteral) {
    jsonLiteral.regIndex = calcAndGetExprRegIndex(jsonLiteral);
    Operand typeCPIndex = getTypeCPIndex(jsonLiteral.type);
    emit(InstructionCodes.NEWJSON, jsonLiteral.regIndex, typeCPIndex);
    for (BLangRecordKeyValue keyValue : jsonLiteral.keyValuePairs) {
        BLangExpression keyExpr = keyValue.key.expr;
        genNode(keyExpr, this.env);
        BLangExpression valueExpr = keyValue.valueExpr;
        genNode(valueExpr, this.env);
        emit(InstructionCodes.JSONSTORE, jsonLiteral.regIndex, keyExpr.regIndex, valueExpr.regIndex);
    }
}

Example 38 with BLangExpression

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

the class CodeGenerator method visit.

@Override
public void visit(BLangXMLAttribute xmlAttribute) {
    SymbolEnv xmlAttributeEnv = SymbolEnv.getXMLAttributeEnv(xmlAttribute, env);
    BLangExpression attrNameExpr = xmlAttribute.name;
    attrNameExpr.regIndex = calcAndGetExprRegIndex(attrNameExpr);
    genNode(attrNameExpr, xmlAttributeEnv);
    RegIndex attrQNameRegIndex = attrNameExpr.regIndex;
    // If the attribute name is a string representation of qname
    if (attrNameExpr.getKind() != NodeKind.XML_QNAME) {
        RegIndex localNameRegIndex = getRegIndex(TypeTags.STRING);
        RegIndex uriRegIndex = getRegIndex(TypeTags.STRING);
        emit(InstructionCodes.S2QNAME, attrQNameRegIndex, localNameRegIndex, uriRegIndex);
        attrQNameRegIndex = getRegIndex(TypeTags.XML);
        generateURILookupInstructions(((BLangXMLElementLiteral) env.node).namespacesInScope, localNameRegIndex, uriRegIndex, attrQNameRegIndex, xmlAttribute.pos, xmlAttributeEnv);
        attrNameExpr.regIndex = attrQNameRegIndex;
    }
    BLangExpression attrValueExpr = xmlAttribute.value;
    genNode(attrValueExpr, env);
    if (xmlAttribute.isNamespaceDeclr) {
        ((BXMLNSSymbol) xmlAttribute.symbol).nsURIIndex = attrValueExpr.regIndex;
    }
}

Example 39 with BLangExpression

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

the class CodeGenerator method visit.

public void visit(BLangAssignment assignNode) {
    List<BLangExpression> lhrExprs = assignNode.varRefs;
    if (assignNode.declaredWithVar) {
        lhrExprs.stream().filter(lhsExr -> lhsExr.type.tag != TypeTags.NONE).map(lhsExr -> (BLangVariableReference) lhsExr).forEach(varRef -> {
            visitVarSymbol(varRef.symbol, lvIndexes, localVarAttrInfo);
        });
    }
    // Calculate the register indexes of lhs expressions.
    int nLHSExpr = lhrExprs.size();
    RegIndex[] regIndexes = new RegIndex[nLHSExpr];
    for (int i = 0; i < nLHSExpr; i++) {
        BLangExpression lExpr = lhrExprs.get(i);
        if (lExpr.type.tag == TypeTags.NONE) {
            continue;
        }
        if (lExpr.getKind() == NodeKind.SIMPLE_VARIABLE_REF && lExpr instanceof BLangLocalVarRef) {
            lExpr.regIndex = ((BLangVariableReference) lExpr).symbol.varIndex;
            regIndexes[i] = lExpr.regIndex;
        }
    }
    // Set calculated reg indexes and visit rhs expression
    BLangExpression rhsExpr = assignNode.expr;
    rhsExpr.regIndex = regIndexes[0];
    genNode(rhsExpr, this.env);
    // Set the reg indexes generated by visiting rhs expression to lhs expression
    regIndexes[0] = rhsExpr.regIndex;
    for (int i = 0; i < lhrExprs.size(); i++) {
        BLangExpression lExpr = lhrExprs.get(i);
        if (lExpr.type.tag == TypeTags.NONE) {
            continue;
        }
        if (lExpr.getKind() == NodeKind.SIMPLE_VARIABLE_REF && lExpr instanceof BLangLocalVarRef) {
            continue;
        }
        varAssignment = true;
        lExpr.regIndex = regIndexes[i];
        genNode(lExpr, this.env);
        varAssignment = false;
    }
}

Example 40 with BLangExpression

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

the class ASTBuilderUtil method createMatchStatement.

static BLangMatch createMatchStatement(DiagnosticPos pos, BLangExpression expr, List<BLangMatchStmtPatternClause> patternClauses) {
    BLangMatch matchStmt = (BLangMatch) TreeBuilder.createMatchStatement();
    matchStmt.pos = pos;
    matchStmt.expr = expr;
    matchStmt.patternClauses = patternClauses;
    return matchStmt;
}