JsonReader Class Reference

Represents a JSON reader which implements Archiver concept. More...

#include <archiver.h>

Public Member Functions
	JsonReader (const char *json)
	Constructor.
	~JsonReader ()
	Destructor.
	operator bool () const
JsonReader &	StartObject ()
JsonReader &	Member (const char *name)
bool	HasMember (const char *name) const
JsonReader &	EndObject ()
JsonReader &	StartArray (size_t *size=0)
JsonReader &	EndArray ()
JsonReader &	operator& (bool &b)
JsonReader &	operator& (unsigned &u)
JsonReader &	operator& (int &i)
JsonReader &	operator& (double &d)
JsonReader &	operator& (std::string &s)
JsonReader &	SetNull ()

Static Public Attributes
static const bool	IsReader = true
static const bool	IsWriter = !IsReader

Detailed Description

Definition at line 56 of file archiver.h.

Constructor & Destructor Documentation

JsonReader()

JsonReader::JsonReader

(

const char *

json

)

Parameters

json	A non-const source json string for in-situ parsing.

Note

in-situ means the source JSON string will be modified after parsing.

Definition at line 31 of file archiver.cpp.

                                       : mDocument(), mStack(), mError(false) {
    mDocument = new Document;
    DOCUMENT->Parse(json);
    if (DOCUMENT->HasParseError())
        mError = true;
    else {
        mStack = new JsonReaderStack;
        STACK->push(JsonReaderStackItem(DOCUMENT, JsonReaderStackItem::BeforeStart));
    }
}

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~JsonReader()

JsonReader::~JsonReader

(

)

Definition at line 42 of file archiver.cpp.

                        {
    delete DOCUMENT;
    delete STACK;
}

Member Function Documentation

EndArray()

JsonReader & JsonReader::EndArray

(

)

Definition at line 109 of file archiver.cpp.

                                 {
    if (!mError) {
        if (CURRENT.IsArray() && TOP.state == JsonReaderStackItem::Closed)
            Next();
        else
            mError = true;
    }
    return *this;
}

EndObject()

JsonReader & JsonReader::EndObject

(

)

Definition at line 58 of file archiver.cpp.

                                  {
    if (!mError) {
        if (CURRENT.IsObject() && TOP.state == JsonReaderStackItem::Started)
            Next();
        else
            mError = true;
    }
    return *this;
}

HasMember()

bool JsonReader::HasMember

(

const char *

name

)

const

Definition at line 83 of file archiver.cpp.

                                                 {
    if (!mError && CURRENT.IsObject() && TOP.state == JsonReaderStackItem::Started)
        return CURRENT.HasMember(name);
    return false;
}

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Member()

JsonReader & JsonReader::Member

(

const char *

name

)

Definition at line 68 of file archiver.cpp.

                                               {
    if (!mError) {
        if (CURRENT.IsObject() && TOP.state == JsonReaderStackItem::Started) {
            Value::ConstMemberIterator memberItr = CURRENT.FindMember(name);
            if (memberItr != CURRENT.MemberEnd()) 
                STACK->push(JsonReaderStackItem(&memberItr->value, JsonReaderStackItem::BeforeStart));
            else
                mError = true;
        }
        else
            mError = true;
    }
    return *this;
}

operator bool()

JsonReader::operator bool ( ) const

inline

Definition at line 70 of file archiver.h.

{ return !mError; }

operator&() [1/5]

JsonReader & JsonReader::operator&

(

bool &

b

)

Definition at line 119 of file archiver.cpp.

                                         {
    if (!mError) {
        if (CURRENT.IsBool()) {
            b = CURRENT.GetBool();
            Next();
        }
        else
            mError = true;
    }
    return *this;
}

operator&() [2/5]

JsonReader & JsonReader::operator&

(

double &

d

)

Definition at line 155 of file archiver.cpp.

                                           {
    if (!mError) {
        if (CURRENT.IsNumber()) {
            d = CURRENT.GetDouble();
            Next();
        }
        else
            mError = true;
    }
    return *this;
}

operator&() [3/5]

JsonReader & JsonReader::operator&

(

int &

i

)

Definition at line 143 of file archiver.cpp.

                                        {
    if (!mError) {
        if (CURRENT.IsInt()) {
            i = CURRENT.GetInt();
            Next();
        }
        else
            mError = true;
    }
    return *this;
}

operator&() [4/5]

JsonReader & JsonReader::operator&

(

std::string &

s

)

Definition at line 167 of file archiver.cpp.

                                              {
    if (!mError) {
        if (CURRENT.IsString()) {
            s = CURRENT.GetString();
            Next();
        }
        else
            mError = true;
    }
    return *this;
}

operator&() [5/5]

JsonReader & JsonReader::operator&

(

unsigned &

u

)

Definition at line 131 of file archiver.cpp.

                                             {
    if (!mError) {
        if (CURRENT.IsUint()) {
            u = CURRENT.GetUint();
            Next();
        }
        else
            mError = true;
    }
    return *this;
}

SetNull()

JsonReader & JsonReader::SetNull

(

)

Definition at line 179 of file archiver.cpp.

                                {
    // This function is for JsonWriter only.
    mError = true;
    return *this;
}

StartArray()

JsonReader & JsonReader::StartArray

(

size_t *

size = 0

)

Definition at line 89 of file archiver.cpp.

                                               {
    if (!mError) {
        if (CURRENT.IsArray() && TOP.state == JsonReaderStackItem::BeforeStart) {
            TOP.state = JsonReaderStackItem::Started;
            if (size)
                *size = CURRENT.Size();
 
            if (!CURRENT.Empty()) {
                const Value* value = &CURRENT[TOP.index];
                STACK->push(JsonReaderStackItem(value, JsonReaderStackItem::BeforeStart));
            }
            else
                TOP.state = JsonReaderStackItem::Closed;
        }
        else
            mError = true;
    }
    return *this;
}

StartObject()

JsonReader & JsonReader::StartObject

(

)

Definition at line 48 of file archiver.cpp.

                                    {
    if (!mError) {
        if (CURRENT.IsObject() && TOP.state == JsonReaderStackItem::BeforeStart)
            TOP.state = JsonReaderStackItem::Started;
        else
            mError = true;
    }
    return *this;
}

Member Data Documentation

IsReader

const bool JsonReader::IsReader = true

static

Definition at line 88 of file archiver.h.

IsWriter

const bool JsonReader::IsWriter = !IsReader

static

Definition at line 89 of file archiver.h.

---

The documentation for this class was generated from the following files:

• libraries/fc/include/fc/crypto/webauthn_json/example/archiver/archiver.h
• libraries/fc/include/fc/crypto/webauthn_json/example/archiver/archiver.cpp