FunctionExecutable* UnlinkedFunctionExecutable::link(VM& vm, const SourceCode& ownerSource, Optional<int> overrideLineNumber, Intrinsic intrinsic)
{
    SourceCode source = m_sourceOverride ? SourceCode(m_sourceOverride) : ownerSource;
    unsigned firstLine = source.firstLine() + m_firstLineOffset;
    unsigned startOffset = source.startOffset() + m_startOffset;
    unsigned lineCount = m_lineCount;

    // Adjust to one-based indexing.
    bool startColumnIsOnFirstSourceLine = !m_firstLineOffset;
    unsigned startColumn = m_unlinkedBodyStartColumn + (startColumnIsOnFirstSourceLine ? source.startColumn() : 1);
    bool endColumnIsOnStartLine = !lineCount;
    unsigned endColumn = m_unlinkedBodyEndColumn + (endColumnIsOnStartLine ? startColumn : 1);

    SourceCode code(source.provider(), startOffset, startOffset + m_sourceLength, firstLine, startColumn);
    FunctionOverrides::OverrideInfo overrideInfo;
    bool hasFunctionOverride = false;

    if (UNLIKELY(Options::functionOverrides())) {
        hasFunctionOverride = FunctionOverrides::initializeOverrideFor(code, overrideInfo);
        if (hasFunctionOverride) {
            firstLine = overrideInfo.firstLine;
            lineCount = overrideInfo.lineCount;
            startColumn = overrideInfo.startColumn;
            endColumn = overrideInfo.endColumn;
            code = overrideInfo.sourceCode;
        }
    }

    FunctionExecutable* result = FunctionExecutable::create(vm, code, this, firstLine, firstLine + lineCount, startColumn, endColumn, intrinsic);
    if (overrideLineNumber)
        result->setOverrideLineNumber(*overrideLineNumber);

    if (UNLIKELY(hasFunctionOverride)) {
        result->overrideParameterAndTypeProfilingStartEndOffsets(
            overrideInfo.parametersStartOffset,
            overrideInfo.typeProfilingStartOffset,
            overrideInfo.typeProfilingEndOffset);
    }

    return result;
}
示例#2
0
FunctionExecutable* UnlinkedFunctionExecutable::link(VM& vm, const SourceCode& passedParentSource, std::optional<int> overrideLineNumber, Intrinsic intrinsic)
{
    const SourceCode& parentSource = m_parentSourceOverride.isNull() ? passedParentSource : m_parentSourceOverride;
    unsigned firstLine = parentSource.firstLine().oneBasedInt() + m_firstLineOffset;
    unsigned startOffset = parentSource.startOffset() + m_startOffset;
    unsigned lineCount = m_lineCount;

    unsigned startColumn = linkedStartColumn(parentSource.startColumn().oneBasedInt());
    unsigned endColumn = linkedEndColumn(startColumn);

    SourceCode source(parentSource.provider(), startOffset, startOffset + m_sourceLength, firstLine, startColumn);
    FunctionOverrides::OverrideInfo overrideInfo;
    bool hasFunctionOverride = false;

    if (UNLIKELY(Options::functionOverrides())) {
        hasFunctionOverride = FunctionOverrides::initializeOverrideFor(source, overrideInfo);
        if (UNLIKELY(hasFunctionOverride)) {
            firstLine = overrideInfo.firstLine;
            lineCount = overrideInfo.lineCount;
            startColumn = overrideInfo.startColumn;
            endColumn = overrideInfo.endColumn;
            source = overrideInfo.sourceCode;
        }
    }

    FunctionExecutable* result = FunctionExecutable::create(vm, source, this, firstLine + lineCount, endColumn, intrinsic);
    if (overrideLineNumber)
        result->setOverrideLineNumber(*overrideLineNumber);

    if (UNLIKELY(hasFunctionOverride)) {
        result->overrideParameterAndTypeProfilingStartEndOffsets(
            overrideInfo.parametersStartOffset,
            overrideInfo.typeProfilingStartOffset,
            overrideInfo.typeProfilingEndOffset);
    }

    return result;
}