Examples with StructInfo org.wso2.ballerinalang.programfile.StructInfo used on opensource projects

Example 1 with StructInfo

use of org.wso2.ballerinalang.programfile.StructInfo in project ballerina by ballerina-lang.

the class ErrorTableEntry method setPackageInfo.

public void setPackageInfo(PackageInfo packageInfo) {
    this.packageInfo = packageInfo;
    // Load Cache values.
    if (errorStructCPIndex < 0) {
        return;
    }
    StructureRefCPEntry structureRefCPEntry = (StructureRefCPEntry) packageInfo.getCPEntry(errorStructCPIndex);
// this.error = (StructInfo) structureRefCPEntry.getStructureTypeInfo();
}

Example 2 with StructInfo

use of org.wso2.ballerinalang.programfile.StructInfo in project ballerina by ballerina-lang.

the class CodeGenerator method visit.

public void visit(BLangTryCatchFinally tryNode) {
    Operand gotoTryCatchEndAddr = getOperand(-1);
    Instruction instructGotoTryCatchEnd = InstructionFactory.get(InstructionCodes.GOTO, gotoTryCatchEndAddr);
    List<int[]> unhandledErrorRangeList = new ArrayList<>();
    ErrorTableAttributeInfo errorTable = createErrorTableIfAbsent(currentPkgInfo);
    // Handle try block.
    int fromIP = nextIP();
    genNode(tryNode.tryBody, env);
    int toIP = nextIP() - 1;
    // Append finally block instructions.
    if (tryNode.finallyBody != null) {
        genNode(tryNode.finallyBody, env);
    }
    emit(instructGotoTryCatchEnd);
    unhandledErrorRangeList.add(new int[] { fromIP, toIP });
    // Handle catch blocks.
    int order = 0;
    for (BLangCatch bLangCatch : tryNode.getCatchBlocks()) {
        addLineNumberInfo(bLangCatch.pos);
        int targetIP = nextIP();
        genNode(bLangCatch, env);
        unhandledErrorRangeList.add(new int[] { targetIP, nextIP() - 1 });
        // Append finally block instructions.
        if (tryNode.finallyBody != null) {
            genNode(tryNode.finallyBody, env);
        }
        emit(instructGotoTryCatchEnd);
        // Create Error table entry for this catch block
        BTypeSymbol structSymbol = bLangCatch.param.symbol.type.tsymbol;
        BPackageSymbol packageSymbol = (BPackageSymbol) bLangCatch.param.symbol.type.tsymbol.owner;
        int pkgCPIndex = addPackageRefCPEntry(currentPkgInfo, packageSymbol.pkgID);
        int structNameCPIndex = addUTF8CPEntry(currentPkgInfo, structSymbol.name.value);
        StructureRefCPEntry structureRefCPEntry = new StructureRefCPEntry(pkgCPIndex, structNameCPIndex);
        int structCPEntryIndex = currentPkgInfo.addCPEntry(structureRefCPEntry);
        StructInfo errorStructInfo = this.programFile.packageInfoMap.get(packageSymbol.pkgID.bvmAlias()).getStructInfo(structSymbol.name.value);
        ErrorTableEntry errorTableEntry = new ErrorTableEntry(fromIP, toIP, targetIP, order++, structCPEntryIndex);
        errorTableEntry.setError(errorStructInfo);
        errorTable.addErrorTableEntry(errorTableEntry);
    }
    if (tryNode.finallyBody != null) {
        // Create Error table entry for unhandled errors in try and catch(s) blocks
        for (int[] range : unhandledErrorRangeList) {
            ErrorTableEntry errorTableEntry = new ErrorTableEntry(range[0], range[1], nextIP(), order++, -1);
            errorTable.addErrorTableEntry(errorTableEntry);
        }
        // Append finally block instruction.
        genNode(tryNode.finallyBody, env);
        emit(InstructionFactory.get(InstructionCodes.THROW, getOperand(-1)));
    }
    gotoTryCatchEndAddr.value = nextIP();
}

Example 3 with StructInfo

use of org.wso2.ballerinalang.programfile.StructInfo in project ballerina by ballerina-lang.

the class CodeGenerator method createStructInfoEntry.

private void createStructInfoEntry(BLangStruct structNode) {
    BStructSymbol structSymbol = (BStructSymbol) structNode.symbol;
    // Add Struct name as an UTFCPEntry to the constant pool
    int structNameCPIndex = addUTF8CPEntry(currentPkgInfo, structSymbol.name.value);
    StructInfo structInfo = new StructInfo(currentPackageRefCPIndex, structNameCPIndex, structSymbol.flags);
    currentPkgInfo.addStructInfo(structSymbol.name.value, structInfo);
    structInfo.structType = (BStructType) structSymbol.type;
    List<BLangVariable> structFields = structNode.fields;
    for (BLangVariable structField : structFields) {
        // Create StructFieldInfo Entry
        int fieldNameCPIndex = addUTF8CPEntry(currentPkgInfo, structField.name.value);
        int sigCPIndex = addUTF8CPEntry(currentPkgInfo, structField.type.getDesc());
        StructFieldInfo structFieldInfo = new StructFieldInfo(fieldNameCPIndex, sigCPIndex, structField.symbol.flags);
        structFieldInfo.fieldType = structField.type;
        // Populate default values
        if (structField.expr != null && structField.expr.getKind() == NodeKind.LITERAL) {
            DefaultValueAttributeInfo defaultVal = getDefaultValueAttributeInfo((BLangLiteral) structField.expr);
            structFieldInfo.addAttributeInfo(AttributeInfo.Kind.DEFAULT_VALUE_ATTRIBUTE, defaultVal);
        }
        structInfo.fieldInfoEntries.add(structFieldInfo);
        structField.symbol.varIndex = getFieldIndex(structField.symbol.type.tag);
    }
    // Create variable count attribute info
    prepareIndexes(fieldIndexes);
    int[] fieldCount = new int[] { fieldIndexes.tInt, fieldIndexes.tFloat, fieldIndexes.tString, fieldIndexes.tBoolean, fieldIndexes.tBlob, fieldIndexes.tRef };
    addVariableCountAttributeInfo(currentPkgInfo, structInfo, fieldCount);
    fieldIndexes = new VariableIndex(FIELD);
    // Create attached function info entries
    for (BAttachedFunction attachedFunc : structSymbol.attachedFuncs) {
        int funcNameCPIndex = addUTF8CPEntry(currentPkgInfo, attachedFunc.funcName.value);
        // Remove the first type. The first type is always the type to which the function is attached to
        BType[] paramTypes = attachedFunc.type.paramTypes.toArray(new BType[0]);
        if (paramTypes.length == 1) {
            paramTypes = new BType[0];
        } else {
            paramTypes = attachedFunc.type.paramTypes.toArray(new BType[0]);
            paramTypes = Arrays.copyOfRange(paramTypes, 1, paramTypes.length);
        }
        int sigCPIndex = addUTF8CPEntry(currentPkgInfo, generateFunctionSig(paramTypes, attachedFunc.type.retTypes.toArray(new BType[0])));
        int flags = attachedFunc.symbol.flags;
        structInfo.attachedFuncInfoEntries.add(new AttachedFunctionInfo(funcNameCPIndex, sigCPIndex, flags));
    }
}