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

Example 61 with SymbolEnv

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

the class CodeGenerator method visit.

public void visit(BLangBlockStmt blockNode) {
    SymbolEnv blockEnv = SymbolEnv.createBlockEnv(blockNode, this.env);
    for (BLangStatement stmt : blockNode.stmts) {
        if (stmt.getKind() != NodeKind.TRY && stmt.getKind() != NodeKind.CATCH && stmt.getKind() != NodeKind.IF) {
            addLineNumberInfo(stmt.pos);
        }
        genNode(stmt, blockEnv);
        // Update the maxRegIndexes structure
        setMaxRegIndexes(regIndexes, maxRegIndexes);
        // Reset the regIndexes structure for every statement
        regIndexes = new VariableIndex(REG);
    }
}

Example 62 with SymbolEnv

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

the class CodeGenerator method visit.

public void visit(BLangAction actionNode) {
    ActionInfo actionInfo = currentConnectorInfo.actionInfoMap.get(actionNode.name.getValue());
    currentCallableUnitInfo = actionInfo;
    SymbolEnv actionEnv = SymbolEnv.createResourceActionSymbolEnv(actionNode, actionNode.symbol.scope, this.env);
    visitInvokableNode(actionNode, currentCallableUnitInfo, actionEnv);
}

Example 63 with SymbolEnv

use of org.wso2.ballerinalang.compiler.semantics.model.SymbolEnv 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 64 with SymbolEnv

use of org.wso2.ballerinalang.compiler.semantics.model.SymbolEnv 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 65 with SymbolEnv

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

the class CodeGenerator method processJoinBlock.

/* generate code for Join block */
private void processJoinBlock(BLangForkJoin forkJoin, ForkjoinInfo forkjoinInfo, SymbolEnv forkJoinEnv, RegIndex joinVarRegIndex, Operand joinBlockAddr) {
    UTF8CPEntry joinType = new UTF8CPEntry(forkJoin.joinType.name());
    int joinTypeCPIndex = this.currentPkgInfo.addCPEntry(joinType);
    forkjoinInfo.setJoinType(forkJoin.joinType.name());
    forkjoinInfo.setJoinTypeCPIndex(joinTypeCPIndex);
    joinBlockAddr.value = nextIP();
    if (forkJoin.joinResultVar != null) {
        visitForkJoinParameterDefs(forkJoin.joinResultVar, forkJoinEnv);
        joinVarRegIndex.value = forkJoin.joinResultVar.symbol.varIndex.value;
    }
    if (forkJoin.joinedBody != null) {
        this.genNode(forkJoin.joinedBody, forkJoinEnv);
    }
}