Examples with BXMLNSSymbol org.wso2.ballerinalang.compiler.semantics.model.symbols.BXMLNSSymbol used on opensource projects

Example 6 with BXMLNSSymbol

use of org.wso2.ballerinalang.compiler.semantics.model.symbols.BXMLNSSymbol 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 7 with BXMLNSSymbol

use of org.wso2.ballerinalang.compiler.semantics.model.symbols.BXMLNSSymbol in project ballerina by ballerina-lang.

the class CodeGenerator method generateURILookupInstructions.

private void generateURILookupInstructions(Map<Name, BXMLNSSymbol> namespaces, RegIndex localNameRegIndex, RegIndex uriRegIndex, RegIndex targetQNameRegIndex, DiagnosticPos pos, SymbolEnv symbolEnv) {
    if (namespaces.isEmpty()) {
        createQNameWithoutPrefix(localNameRegIndex, uriRegIndex, targetQNameRegIndex);
        return;
    }
    Stack<Operand> endJumpInstrStack = new Stack<>();
    String prefix;
    for (Entry<Name, BXMLNSSymbol> keyValues : namespaces.entrySet()) {
        prefix = keyValues.getKey().getValue();
        // skip the default namespace
        if (prefix.equals(XMLConstants.DEFAULT_NS_PREFIX)) {
            continue;
        }
        // Below section creates the condition to compare the namespace URIs
        // store the comparing uri as string
        BXMLNSSymbol nsSymbol = keyValues.getValue();
        int opcode = getOpcode(TypeTags.STRING, InstructionCodes.IEQ);
        RegIndex conditionExprIndex = getRegIndex(TypeTags.BOOLEAN);
        emit(opcode, uriRegIndex, getNamespaceURIIndex(nsSymbol, symbolEnv), conditionExprIndex);
        Operand ifCondJumpAddr = getOperand(-1);
        emit(InstructionCodes.BR_FALSE, conditionExprIndex, ifCondJumpAddr);
        // Below section creates instructions to be executed, if the above condition succeeds (then body)
        // create the prefix literal
        RegIndex prefixIndex = createStringLiteral(prefix, null, env);
        // create a qname
        emit(InstructionCodes.NEWQNAME, localNameRegIndex, uriRegIndex, prefixIndex, targetQNameRegIndex);
        Operand endJumpAddr = getOperand(-1);
        emit(InstructionCodes.GOTO, endJumpAddr);
        endJumpInstrStack.add(endJumpAddr);
        ifCondJumpAddr.value = nextIP();
    }
    // else part. create a qname with empty prefix
    createQNameWithoutPrefix(localNameRegIndex, uriRegIndex, targetQNameRegIndex);
    while (!endJumpInstrStack.isEmpty()) {
        endJumpInstrStack.pop().value = nextIP();
    }
}

Example 8 with BXMLNSSymbol

use of org.wso2.ballerinalang.compiler.semantics.model.symbols.BXMLNSSymbol 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 9 with BXMLNSSymbol

use of org.wso2.ballerinalang.compiler.semantics.model.symbols.BXMLNSSymbol in project ballerina by ballerina-lang.

the class Desugar method visit.

@Override
public void visit(BLangSimpleVarRef varRefExpr) {
    BLangSimpleVarRef genVarRefExpr = varRefExpr;
    // XML qualified name reference. e.g: ns0:foo
    if (varRefExpr.pkgSymbol != null && varRefExpr.pkgSymbol.tag == SymTag.XMLNS) {
        BLangXMLQName qnameExpr = new BLangXMLQName(varRefExpr.variableName);
        qnameExpr.nsSymbol = (BXMLNSSymbol) varRefExpr.pkgSymbol;
        qnameExpr.localname = varRefExpr.variableName;
        qnameExpr.prefix = varRefExpr.pkgAlias;
        qnameExpr.namespaceURI = qnameExpr.nsSymbol.namespaceURI;
        qnameExpr.isUsedInXML = false;
        qnameExpr.pos = varRefExpr.pos;
        qnameExpr.type = symTable.stringType;
        result = qnameExpr;
        return;
    }
    BSymbol ownerSymbol = varRefExpr.symbol.owner;
    if ((varRefExpr.symbol.tag & SymTag.FUNCTION) == SymTag.FUNCTION && varRefExpr.symbol.type.tag == TypeTags.INVOKABLE) {
        genVarRefExpr = new BLangFunctionVarRef(varRefExpr.symbol);
    } else if ((ownerSymbol.tag & SymTag.INVOKABLE) == SymTag.INVOKABLE) {
        // Local variable in a function/resource/action/worker
        genVarRefExpr = new BLangLocalVarRef(varRefExpr.symbol);
    } else if ((ownerSymbol.tag & SymTag.CONNECTOR) == SymTag.CONNECTOR) {
        // Field variable in a receiver
        genVarRefExpr = new BLangFieldVarRef(varRefExpr.symbol);
    } else if ((ownerSymbol.tag & SymTag.STRUCT) == SymTag.STRUCT) {
        genVarRefExpr = new BLangFieldVarRef(varRefExpr.symbol);
    } else if ((ownerSymbol.tag & SymTag.PACKAGE) == SymTag.PACKAGE || (ownerSymbol.tag & SymTag.SERVICE) == SymTag.SERVICE) {
        // Package variable | service variable
        // We consider both of them as package level variables
        genVarRefExpr = new BLangPackageVarRef(varRefExpr.symbol);
        // Only locking service level and package level variables
        if (!enclLocks.isEmpty()) {
            enclLocks.peek().addLockVariable(varRefExpr.symbol);
        }
    }
    genVarRefExpr.type = varRefExpr.type;
    result = genVarRefExpr;
}

Example 10 with BXMLNSSymbol

use of org.wso2.ballerinalang.compiler.semantics.model.symbols.BXMLNSSymbol in project ballerina by ballerina-lang.

the class Desugar method visit.

@Override
public void visit(BLangXMLElementLiteral xmlElementLiteral) {
    xmlElementLiteral.startTagName = rewriteExpr(xmlElementLiteral.startTagName);
    xmlElementLiteral.endTagName = rewriteExpr(xmlElementLiteral.endTagName);
    xmlElementLiteral.modifiedChildren = rewriteExprs(xmlElementLiteral.modifiedChildren);
    xmlElementLiteral.attributes = rewriteExprs(xmlElementLiteral.attributes);
    // Separate the in-line namepsace declarations and attributes.
    Iterator<BLangXMLAttribute> attributesItr = xmlElementLiteral.attributes.iterator();
    while (attributesItr.hasNext()) {
        BLangXMLAttribute attribute = attributesItr.next();
        if (!attribute.isNamespaceDeclr) {
            continue;
        }
        // Create local namepace declaration for all in-line namespace declarations
        BLangLocalXMLNS xmlns = new BLangLocalXMLNS();
        xmlns.namespaceURI = attribute.value.concatExpr;
        xmlns.prefix = ((BLangXMLQName) attribute.name).localname;
        xmlns.symbol = (BXMLNSSymbol) attribute.symbol;
        xmlElementLiteral.inlineNamespaces.add(xmlns);
        attributesItr.remove();
    }
    result = xmlElementLiteral;
}