Function getElementByDesignator

addons/misra_9.py:525–559

(ed, token)

def getElementByDesignator(ed, token):
    if not token.str in [ '.', '[' ]:
        return None

    while token.str in [ '.', '[' ]:
        token = token.astOperand1

    while ed and not token.isAssignmentOp:
        token = token.astParent

        if token.str == '[':
            if not ed.isArray:
                ed.markStuctureViolation(token)

            chIndex = -1
            if token.astOperand2 is not None:
                chIndex = token.astOperand2.getKnownIntValue()
            elif token.astOperand1 is not None:
                chIndex = token.astOperand1.getKnownIntValue()

            ed = ed.getChildByIndex(chIndex) if chIndex is not None else None

        elif token.str == '.':
            if not ed.isRecord:
                ed.markStuctureViolation(token)

            name = ""
            if token.astOperand2 is not None:
                name = token.astOperand2.str
            elif token.astOperand1 is not None:
                name = token.astOperand1.str

            ed = ed.getChildByName(name)

    return ed