Examples with LineNumberTableAttributeInfo org.ballerinalang.util.codegen.attributes.LineNumberTableAttributeInfo used on opensource projects

Example 1 with LineNumberTableAttributeInfo

use of org.ballerinalang.util.codegen.attributes.LineNumberTableAttributeInfo in project ballerina by ballerina-lang.

the class PackageInfo method getLineNumberInfo.

public LineNumberInfo getLineNumberInfo(LineNumberInfo lineNumberInfo) {
    LineNumberTableAttributeInfo lineNumberTableAttributeInfo = (LineNumberTableAttributeInfo) attributeInfoMap.get(AttributeInfo.Kind.LINE_NUMBER_TABLE_ATTRIBUTE);
    List<LineNumberInfo> lineNumberInfos = lineNumberTableAttributeInfo.getLineNumberInfoList();
    int index = lineNumberInfos.indexOf(lineNumberInfo);
    if (index >= 0) {
        return lineNumberInfos.get(index);
    }
    return null;
}

Example 2 with LineNumberTableAttributeInfo

use of org.ballerinalang.util.codegen.attributes.LineNumberTableAttributeInfo in project ballerina by ballerina-lang.

the class PackageInfo method getLineNumberInfo.

/**
 * This gets the line number info given the IP. The following example can be taken as a reference
 * to explain the below algorithm.
 *
 *     Code Line                           IP
 *     =======================================
 *     int a = 1 + 1;                      136
 *     runtime:CallStackElement trace1;    138
 *     runtime:CallStackElement trace2;    138
 *     myFunc(a + 1);                      138
 *     int x = 1 + 2;                      140
 *     int g = 1 + 3;                      142
 *
 * @param currentIP the current IP
 * @return the resolved line number information
 */
public LineNumberInfo getLineNumberInfo(int currentIP) {
    LineNumberTableAttributeInfo lineNumberTableAttributeInfo = (LineNumberTableAttributeInfo) attributeInfoMap.get(AttributeInfo.Kind.LINE_NUMBER_TABLE_ATTRIBUTE);
    List<LineNumberInfo> lineNumberInfos = new ArrayList<>(lineNumberTableAttributeInfo.getLineNumberInfoList());
    Collections.reverse(lineNumberInfos);
    for (LineNumberInfo lineNumberInfo : lineNumberInfos) {
        if (currentIP >= lineNumberInfo.getIp()) {
            return lineNumberInfo;
        }
    }
    return null;
}

Example 3 with LineNumberTableAttributeInfo

use of org.ballerinalang.util.codegen.attributes.LineNumberTableAttributeInfo in project ballerina by ballerina-lang.

the class ProgramFileReader method getAttributeInfo.

private AttributeInfo getAttributeInfo(DataInputStream dataInStream, ConstantPool constantPool) throws IOException {
    int attribNameCPIndex = dataInStream.readInt();
    UTF8CPEntry attribNameCPEntry = (UTF8CPEntry) constantPool.getCPEntry(attribNameCPIndex);
    AttributeInfo.Kind attribKind = AttributeInfo.Kind.fromString(attribNameCPEntry.getValue());
    if (attribKind == null) {
        throw new ProgramFileFormatException("unknown attribute kind " + attribNameCPEntry.getValue());
    }
    switch(attribKind) {
        case CODE_ATTRIBUTE:
            CodeAttributeInfo codeAttributeInfo = new CodeAttributeInfo();
            codeAttributeInfo.setAttributeNameIndex(attribNameCPIndex);
            codeAttributeInfo.setCodeAddrs(dataInStream.readInt());
            codeAttributeInfo.setMaxLongLocalVars(dataInStream.readUnsignedShort());
            codeAttributeInfo.setMaxDoubleLocalVars(dataInStream.readShort());
            codeAttributeInfo.setMaxStringLocalVars(dataInStream.readShort());
            codeAttributeInfo.setMaxIntLocalVars(dataInStream.readShort());
            codeAttributeInfo.setMaxByteLocalVars(dataInStream.readShort());
            codeAttributeInfo.setMaxRefLocalVars(dataInStream.readShort());
            codeAttributeInfo.setMaxLongRegs(dataInStream.readShort());
            codeAttributeInfo.setMaxDoubleRegs(dataInStream.readShort());
            codeAttributeInfo.setMaxStringRegs(dataInStream.readShort());
            codeAttributeInfo.setMaxIntRegs(dataInStream.readShort());
            codeAttributeInfo.setMaxByteRegs(dataInStream.readShort());
            codeAttributeInfo.setMaxRefRegs(dataInStream.readShort());
            return codeAttributeInfo;
        case VARIABLE_TYPE_COUNT_ATTRIBUTE:
            VarTypeCountAttributeInfo varCountAttributeInfo = new VarTypeCountAttributeInfo(attribNameCPIndex);
            varCountAttributeInfo.setMaxLongVars(dataInStream.readShort());
            varCountAttributeInfo.setMaxDoubleVars(dataInStream.readShort());
            varCountAttributeInfo.setMaxStringVars(dataInStream.readShort());
            varCountAttributeInfo.setMaxIntVars(dataInStream.readShort());
            varCountAttributeInfo.setMaxByteVars(dataInStream.readShort());
            varCountAttributeInfo.setMaxRefVars(dataInStream.readShort());
            return varCountAttributeInfo;
        case ERROR_TABLE:
            ErrorTableAttributeInfo tableAttributeInfo = new ErrorTableAttributeInfo(attribNameCPIndex);
            int tableEntryCount = dataInStream.readShort();
            for (int i = 0; i < tableEntryCount; i++) {
                int ipFrom = dataInStream.readInt();
                int ipTo = dataInStream.readInt();
                int ipTarget = dataInStream.readInt();
                int priority = dataInStream.readInt();
                int errorStructCPIndex = dataInStream.readInt();
                ErrorTableEntry tableEntry = new ErrorTableEntry(ipFrom, ipTo, ipTarget, priority, errorStructCPIndex);
                if (errorStructCPIndex != -1) {
                    StructureRefCPEntry structureRefCPEntry = (StructureRefCPEntry) constantPool.getCPEntry(errorStructCPIndex);
                    tableEntry.setError((StructInfo) structureRefCPEntry.getStructureTypeInfo());
                }
                tableAttributeInfo.addErrorTableEntry(tableEntry);
            }
            return tableAttributeInfo;
        case LOCAL_VARIABLES_ATTRIBUTE:
            LocalVariableAttributeInfo localVarAttrInfo = new LocalVariableAttributeInfo(attribNameCPIndex);
            int localVarInfoCount = dataInStream.readShort();
            for (int i = 0; i < localVarInfoCount; i++) {
                LocalVariableInfo localVariableInfo = getLocalVariableInfo(dataInStream, constantPool);
                localVarAttrInfo.addLocalVarInfo(localVariableInfo);
            }
            return localVarAttrInfo;
        case LINE_NUMBER_TABLE_ATTRIBUTE:
            LineNumberTableAttributeInfo lnNoTblAttrInfo = new LineNumberTableAttributeInfo(attribNameCPIndex);
            int lineNoInfoCount = dataInStream.readShort();
            for (int i = 0; i < lineNoInfoCount; i++) {
                LineNumberInfo lineNumberInfo = getLineNumberInfo(dataInStream, constantPool);
                lnNoTblAttrInfo.addLineNumberInfo(lineNumberInfo);
            }
            return lnNoTblAttrInfo;
        case DEFAULT_VALUE_ATTRIBUTE:
            DefaultValue defaultValue = getDefaultValue(dataInStream, constantPool);
            DefaultValueAttributeInfo defaultValAttrInfo = new DefaultValueAttributeInfo(attribNameCPIndex, defaultValue);
            return defaultValAttrInfo;
        case PARAMETER_DEFAULTS_ATTRIBUTE:
            ParamDefaultValueAttributeInfo paramDefaultValAttrInfo = new ParamDefaultValueAttributeInfo(attribNameCPIndex);
            int paramDefaultsInfoCount = dataInStream.readShort();
            for (int i = 0; i < paramDefaultsInfoCount; i++) {
                DefaultValue paramDefaultValue = getDefaultValue(dataInStream, constantPool);
                paramDefaultValAttrInfo.addParamDefaultValueInfo(paramDefaultValue);
            }
            return paramDefaultValAttrInfo;
        default:
            throw new ProgramFileFormatException("unsupported attribute kind " + attribNameCPEntry.getValue());
    }
}

Example 4 with LineNumberTableAttributeInfo

use of org.ballerinalang.util.codegen.attributes.LineNumberTableAttributeInfo in project ballerina by ballerina-lang.

the class DebugInfoHolder method processPkgInfo.

/**
 * Process and build information required for debugging the package.
 *
 * @param packageInfo   To extract relevant information.
 */
private void processPkgInfo(PackageInfo packageInfo) {
    DebuggerPkgInfo debuggerPkgInfo = new DebuggerPkgInfo(packageInfo.getInstructionCount());
    LineNumberTableAttributeInfo lineNumberTableAttributeInfo = (LineNumberTableAttributeInfo) packageInfo.getAttributeInfo(AttributeInfo.Kind.LINE_NUMBER_TABLE_ATTRIBUTE);
    List<LineNumberInfo> lineNumberInfos = lineNumberTableAttributeInfo.getLineNumberInfoList().stream().sorted(Comparator.comparing(LineNumberInfo::getIp)).collect(Collectors.toList());
    LineNumberInfo currentLineNoInfo = null;
    for (LineNumberInfo lineNoInfo : lineNumberInfos) {
        if (currentLineNoInfo == null) {
            currentLineNoInfo = lineNoInfo;
            continue;
        }
        debuggerPkgInfo.addLineNumberInfo(currentLineNoInfo.getIp(), lineNoInfo.getIp(), currentLineNoInfo);
        currentLineNoInfo = lineNoInfo;
    }
    if (currentLineNoInfo != null) {
        debuggerPkgInfo.addLineNumberInfo(currentLineNoInfo.getIp(), packageInfo.getInstructionCount(), currentLineNoInfo);
    }
    packageInfoMap.put(packageInfo.getPkgPath(), debuggerPkgInfo);
}