X-Git-Url: https://gerrit.akraino.org/r/gitweb?a=blobdiff_plain;f=example-apps%2FPDD%2Fpcb-defect-detection%2Fdata%2Flib_coco%2Fcommon%2Fgason.h;fp=example-apps%2FPDD%2Fpcb-defect-detection%2Fdata%2Flib_coco%2Fcommon%2Fgason.h;h=2e728d9f70763e565077e1174c379cf141c9ede9;hb=a785567fb9acfc68536767d20f60ba917ae85aa1;hp=0000000000000000000000000000000000000000;hpb=94a133e696b9b2a7f73544462c2714986fa7ab4a;p=ealt-edge.git diff --git a/example-apps/PDD/pcb-defect-detection/data/lib_coco/common/gason.h b/example-apps/PDD/pcb-defect-detection/data/lib_coco/common/gason.h new file mode 100755 index 0000000..2e728d9 --- /dev/null +++ b/example-apps/PDD/pcb-defect-detection/data/lib_coco/common/gason.h @@ -0,0 +1,136 @@ +// https://github.com/vivkin/gason - pulled January 10, 2016 +#pragma once + +#include +#include +#include + +enum JsonTag { + JSON_NUMBER = 0, + JSON_STRING, + JSON_ARRAY, + JSON_OBJECT, + JSON_TRUE, + JSON_FALSE, + JSON_NULL = 0xF +}; + +struct JsonNode; + +#define JSON_VALUE_PAYLOAD_MASK 0x00007FFFFFFFFFFFULL +#define JSON_VALUE_NAN_MASK 0x7FF8000000000000ULL +#define JSON_VALUE_TAG_MASK 0xF +#define JSON_VALUE_TAG_SHIFT 47 + +union JsonValue { + uint64_t ival; + double fval; + + JsonValue(double x) + : fval(x) { + } + JsonValue(JsonTag tag = JSON_NULL, void *payload = nullptr) { + assert((uintptr_t)payload <= JSON_VALUE_PAYLOAD_MASK); + ival = JSON_VALUE_NAN_MASK | ((uint64_t)tag << JSON_VALUE_TAG_SHIFT) | (uintptr_t)payload; + } + bool isDouble() const { + return (int64_t)ival <= (int64_t)JSON_VALUE_NAN_MASK; + } + JsonTag getTag() const { + return isDouble() ? JSON_NUMBER : JsonTag((ival >> JSON_VALUE_TAG_SHIFT) & JSON_VALUE_TAG_MASK); + } + uint64_t getPayload() const { + assert(!isDouble()); + return ival & JSON_VALUE_PAYLOAD_MASK; + } + double toNumber() const { + assert(getTag() == JSON_NUMBER); + return fval; + } + char *toString() const { + assert(getTag() == JSON_STRING); + return (char *)getPayload(); + } + JsonNode *toNode() const { + assert(getTag() == JSON_ARRAY || getTag() == JSON_OBJECT); + return (JsonNode *)getPayload(); + } +}; + +struct JsonNode { + JsonValue value; + JsonNode *next; + char *key; +}; + +struct JsonIterator { + JsonNode *p; + + void operator++() { + p = p->next; + } + bool operator!=(const JsonIterator &x) const { + return p != x.p; + } + JsonNode *operator*() const { + return p; + } + JsonNode *operator->() const { + return p; + } +}; + +inline JsonIterator begin(JsonValue o) { + return JsonIterator{o.toNode()}; +} +inline JsonIterator end(JsonValue) { + return JsonIterator{nullptr}; +} + +#define JSON_ERRNO_MAP(XX) \ + XX(OK, "ok") \ + XX(BAD_NUMBER, "bad number") \ + XX(BAD_STRING, "bad string") \ + XX(BAD_IDENTIFIER, "bad identifier") \ + XX(STACK_OVERFLOW, "stack overflow") \ + XX(STACK_UNDERFLOW, "stack underflow") \ + XX(MISMATCH_BRACKET, "mismatch bracket") \ + XX(UNEXPECTED_CHARACTER, "unexpected character") \ + XX(UNQUOTED_KEY, "unquoted key") \ + XX(BREAKING_BAD, "breaking bad") \ + XX(ALLOCATION_FAILURE, "allocation failure") + +enum JsonErrno { +#define XX(no, str) JSON_##no, + JSON_ERRNO_MAP(XX) +#undef XX +}; + +const char *jsonStrError(int err); + +class JsonAllocator { + struct Zone { + Zone *next; + size_t used; + } *head = nullptr; + +public: + JsonAllocator() = default; + JsonAllocator(const JsonAllocator &) = delete; + JsonAllocator &operator=(const JsonAllocator &) = delete; + JsonAllocator(JsonAllocator &&x) : head(x.head) { + x.head = nullptr; + } + JsonAllocator &operator=(JsonAllocator &&x) { + head = x.head; + x.head = nullptr; + return *this; + } + ~JsonAllocator() { + deallocate(); + } + void *allocate(size_t size); + void deallocate(); +}; + +int jsonParse(char *str, char **endptr, JsonValue *value, JsonAllocator &allocator);