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Reduced memory consumption by not duplicating spaces and comments

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This commit is contained in:
Benoit Blanchon
2016-12-29 17:26:16 +01:00
parent 8032a4b564
commit 3f96e070ce
20 changed files with 596 additions and 287 deletions
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49
include/ArduinoJson/Deserialization/JsonParser.hpp
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@@ -18,12 +18,14 @@ namespace Internals {
// Parse JSON string to create JsonArrays and JsonObjects
// This internal class is not indended to be used directly.
// Instead, use JsonBuffer.parseArray() or .parseObject()
template <typename TReader, typename TWriter>
class JsonParser {
public:
JsonParser(JsonBuffer *buffer, char *json, uint8_t nestingLimit)
JsonParser(JsonBuffer *buffer, TReader reader, TWriter writer,
uint8_t nestingLimit)
: _buffer(buffer),
_reader(json),
_writer(json),
_reader(reader),
_writer(writer),
_nestingLimit(nestingLimit) {}
JsonArray &parseArray();
@@ -36,7 +38,9 @@ class JsonParser {
}
private:
static bool eat(StringReader &, char charToSkip);
JsonParser &operator=(const JsonParser &); // non-copiable
static bool eat(TReader &, char charToSkip);
FORCE_INLINE bool eat(char charToSkip) {
return eat(_reader, charToSkip);
}
@@ -63,9 +67,42 @@ class JsonParser {
}
JsonBuffer *_buffer;
StringReader _reader;
StringWriter _writer;
TReader _reader;
TWriter _writer;
uint8_t _nestingLimit;
};
template <typename TJsonBuffer, typename TString>
struct JsonParserBuilder {
typedef typename Internals::StringFuncs<TString>::Iterator InputIterator;
typedef JsonParser<StringReader<InputIterator>, TJsonBuffer &> TParser;
static TParser makeParser(TJsonBuffer *buffer, const TString &json,
uint8_t nestingLimit) {
return TParser(buffer, InputIterator(json), *buffer, nestingLimit);
}
};
template <typename TJsonBuffer>
struct JsonParserBuilder<TJsonBuffer, char *> {
typedef typename Internals::StringFuncs<char *>::Iterator InputIterator;
typedef JsonParser<StringReader<InputIterator>, StringWriter> TParser;
static TParser makeParser(TJsonBuffer *buffer, char *json,
uint8_t nestingLimit) {
return TParser(buffer, InputIterator(json), json, nestingLimit);
}
};
template <typename TJsonBuffer, typename TChar, size_t N>
struct JsonParserBuilder<TJsonBuffer, TChar[N]>
: JsonParserBuilder<TJsonBuffer, TChar *> {};
template <typename TJsonBuffer, typename TString>
inline typename JsonParserBuilder<TJsonBuffer, TString>::TParser makeParser(
TJsonBuffer *buffer, TString &json, uint8_t nestingLimit) {
return JsonParserBuilder<TJsonBuffer, TString>::makeParser(buffer, json,
nestingLimit);
}
}
}