Some refactoring.

Makefile

@@ -19,9 +19,9 @@ endif
 
 EXECUTABLES=parse jsoncheck numberparsingcheck stringparsingcheck minifiercompetition parsingcompetition minify allparserscheckfile
 
-HEADERS= include/jsonparser/simdutf8check.h include/jsonparser/stringparsing.h include/jsonparser/numberparsing.h include/jsonparser/jsonparser.h include/jsonparser/common_defs.h include/jsonparser/jsonioutil.h benchmark/benchmark.h benchmark/linux/linux-perf-events.h include/jsonparser/simdjson_internal.h include/jsonparser/stage1_find_marks.h include/jsonparser/stage2_flatten.h include/jsonparser/stage34_unified.h include/jsonparser/jsoncharutils.h
+HEADERS= include/simdjson/simdutf8check.h include/simdjson/stringparsing.h include/simdjson/numberparsing.h include/simdjson/jsonparser.h include/simdjson/common_defs.h include/simdjson/jsonioutil.h benchmark/benchmark.h benchmark/linux/linux-perf-events.h include/simdjson/parsedjson.h include/simdjson/stage1_find_marks.h include/simdjson/stage2_flatten.h include/simdjson/stage34_unified.h include/simdjson/jsoncharutils.h include/simdjson/jsonformatutils.h
 LIBFILES=src/jsonioutil.cpp src/jsonparser.cpp src/stage1_find_marks.cpp     src/stage2_flatten.cpp        src/stage34_unified.cpp
-MINIFIERHEADERS=include/jsonparser/jsonminifier.h include/jsonparser/simdprune_tables.h
+MINIFIERHEADERS=include/simdjson/jsonminifier.h include/simdjson/simdprune_tables.h
 MINIFIERLIBFILES=src/jsonminifier.cpp
 
 
@@ -100,6 +100,10 @@ allparserscheckfile: tests/allparserscheckfile.cpp $(HEADERS) $(LIBFILES) $(OBJE
 parsehisto: benchmark/parse.cpp  $(HEADERS) $(LIBFILES)
 	$(CXX) $(CXXFLAGS) -o parsehisto benchmark/parse.cpp $(LIBFILES) $(LIBFLAGS) -DBUILDHISTOGRAM
 
+cppcheck:
+	cppcheck --enable=all src/*.cpp  benchmarks/*.cpp tests/*.cpp -Iinclude -I. -Ibenchmark/linux 
+
+
 clean:
 	rm -f $(OBJECTS) $(EXECUTABLES) $(EXTRA_EXECUTABLES)
 

README.md

@@ -7,7 +7,7 @@ Goal: Speed up the parsing of JSON per se.
 ## Code example
 
 ```C
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 
 /...
 

benchmark/minifiercompetition.cpp

@@ -2,9 +2,9 @@
 #include <iostream>
 
 #include "benchmark.h"
-#include "jsonparser/jsonioutil.h"
+#include "simdjson/jsonioutil.h"
-#include "jsonparser/jsonminifier.h"
+#include "simdjson/jsonminifier.h"
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 
 // #define RAPIDJSON_SSE2 // bad
 // #define RAPIDJSON_SSE42 // bad

benchmark/parse.cpp

@@ -1,34 +1,37 @@
-#include "jsonparser/common_defs.h"
+#include <stdbool.h>
-#include "linux-perf-events.h"
+#include <stdio.h>
-#include <algorithm>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <x86intrin.h>
+#include <ctype.h>
 #include <assert.h>
+#include <dirent.h>
+#include <inttypes.h>
+
+#include <algorithm>
 #include <chrono>
 #include <cstring>
-#include <dirent.h>
 #include <fstream>
-#include <inttypes.h>
 #include <iomanip>
 #include <iostream>
 #include <map>
 #include <set>
 #include <sstream>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 #include <string>
-#include <unistd.h>
 #include <vector>
-#include <x86intrin.h>
+
-#include <ctype.h>
+
+#include "linux-perf-events.h"
 
 //#define DEBUG
-#include "jsonparser/jsonparser.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/jsonioutil.h"
+#include "simdjson/jsonparser.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/jsonioutil.h"
-#include "jsonparser/stage1_find_marks.h"
+#include "simdjson/parsedjson.h"
-#include "jsonparser/stage2_flatten.h"
+#include "simdjson/stage1_find_marks.h"
-#include "jsonparser/stage34_unified.h"
+#include "simdjson/stage2_flatten.h"
+#include "simdjson/stage34_unified.h"
 using namespace std;
 
 int main(int argc, char *argv[]) {

benchmark/parsingcompetition.cpp

@@ -1,14 +1,15 @@
 #include <unistd.h>
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 
 #include "benchmark.h"
 
-// #define RAPIDJSON_SSE2 // bad
+// #define RAPIDJSON_SSE2 // bad for performance
-// #define RAPIDJSON_SSE42 // bad
+// #define RAPIDJSON_SSE42 // bad for performance
 #include "rapidjson/document.h"
-#include "rapidjson/reader.h" // you have to check in the submodule
+#include "rapidjson/reader.h" 
 #include "rapidjson/stringbuffer.h"
 #include "rapidjson/writer.h"
+
 #include "json11.cpp"
 #include "sajson.h"
 #include "fastjson.cpp"
@@ -18,7 +19,6 @@ extern "C"
 {
 #include "ultrajsondec.c"
 #include "ujdecode.h"
-
 }
 using namespace rapidjson;
 using namespace std;

include/simdjson/jsoncharutils.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "jsonparser/common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/parsedjson.h"
 
 // structural chars here are
 // they are { 0x7b } 0x7d : 0x3a [ 0x5b ] 0x5d , 0x2c
@@ -109,4 +109,3 @@ inline size_t codepoint_to_utf8(uint32_t cp, u8 *c) {
   return 0; // bad r
 }
 
-

include/simdjson/jsonformatutils.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <stdio.h>
+
+static inline void print_with_escapes(const unsigned char *src) {
+  while (*src) {
+    switch (*src) {
+    case '\n':
+      putchar('\\');
+      putchar('n');
+      break;
+    case '\"':
+      putchar('\\');
+      putchar('"');
+      break;
+    case '\t':
+      putchar('\\');
+      putchar('t');
+      break;
+    case '\\':
+      putchar('\\');
+      putchar('\\');
+      break;
+    default:
+      if (*src <= 0x1F) {
+        printf("\\u%x", *src);
+      } else
+        putchar(*src);
+    }
+    src++;
+  }
+}
+

include/simdjson/jsonioutil.h

@@ -7,7 +7,7 @@
 #include <sstream>
 #include <string>
 
-#include "common_defs.h"
+#include "simdjson/common_defs.h"
 
 // if you must provide a pointer to some data, create it with this function:
 // length is the max. size in bytes of the string

include/simdjson/jsonparser.h

@@ -1,11 +1,11 @@
 #pragma once
 
-#include "common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonioutil.h"
+#include "simdjson/jsonioutil.h"
-#include "simdjson_internal.h"
+#include "simdjson/parsedjson.h"
-#include "stage1_find_marks.h"
+#include "simdjson/stage1_find_marks.h"
-#include "stage2_flatten.h"
+#include "simdjson/stage2_flatten.h"
-#include "stage34_unified.h"
+#include "simdjson/stage34_unified.h"
 
 // Allocate a ParsedJson structure that can support document
 // up to len bytes.

include/simdjson/numberparsing.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include "common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/jsoncharutils.h"
+#include "simdjson/jsoncharutils.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/parsedjson.h"
 
 static const double power_of_ten[] = {
     1e-308, 1e-307, 1e-306, 1e-305, 1e-304, 1e-303, 1e-302, 1e-301, 1e-300,

include/simdjson/parsedjson.h

@@ -6,51 +6,16 @@
 /* Microsoft C/C++-compatible compiler */
 #include <intrin.h>
 #else
-#include <immintrin.h>
 #include <x86intrin.h>
 #endif
 
 #include <iomanip>
 #include <iostream>
+
+#include "simdjson/jsonformatutils.h"
+
 #define JSONVALUEMASK 0xFFFFFFFFFFFFFF;
 
-static inline void print_with_escapes(const unsigned char *src) {
-  while (*src) {
-    switch (*src) {
-    case '\n':
-      putchar('\\');
-      putchar('n');
-      break;
-    case '\"':
-      putchar('\\');
-      putchar('"');
-      break;
-    case '\t':
-      putchar('\\');
-      putchar('t');
-      break;
-    case '\\':
-      putchar('\\');
-      putchar('\\');
-      break;
-    default:
-      if (*src <= 0x1F) {
-        printf("\\u%x", *src);
-      } else
-        putchar(*src);
-    }
-    src++;
-  }
-}
-
-// const u32 MAX_DEPTH = 2048;
-// const u32 DEPTH_SAFETY_MARGIN = 32; // should be power-of-2 as we check this
-// with a modulo in our hot stage 3 loop
-// const u32 START_DEPTH = DEPTH_SAFETY_MARGIN;
-// const u32 REDLINE_DEPTH = MAX_DEPTH - DEPTH_SAFETY_MARGIN;
-// const size_t MAX_TAPE_ENTRIES = 127 * 1024;
-// const size_t MAX_TAPE = MAX_DEPTH * MAX_TAPE_ENTRIES;
-
 /////////////
 // TODO: move this to be more like a real class
 // currently, you need to create it like so...
@@ -114,7 +79,7 @@ public:
         if ((inobjectidx[depth] > 0) && (type != ']'))
           printf(",  ");
         inobjectidx[depth]++;
-      } else if (inobject) {
+      } else { //if (inobject) {
         if ((inobjectidx[depth] > 0) && ((inobjectidx[depth] & 1) == 0) &&
             (type != '}'))
           printf(",  ");
@@ -204,6 +169,8 @@ public:
 
   really_inline void write_tape_double(double d) {
     write_tape(0, 'd');
+    static_assert(sizeof(d) == sizeof(tape[current_loc]),
+                  "mismatch size");
     tape[current_loc++] =*( (u64*) &d);
   }
 

include/simdjson/simdutf8check.h

@@ -4,7 +4,12 @@
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
+#ifdef _MSC_VER
+/* Microsoft C/C++-compatible compiler */
+#include <intrin.h>
+#else
 #include <x86intrin.h>
+#endif
 #include <string.h>
 /*
  * legal utf-8 byte sequence

include/simdjson/stage1_find_marks.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include "common_defs.h"
-#include "simdjson_internal.h"
+#include "parsedjson.h"
 
 WARN_UNUSED
 bool find_structural_bits(const u8 *buf, size_t len, ParsedJson &pj);

include/simdjson/stage2_flatten.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "common_defs.h"
+#include "simdjson/common_defs.h"
-#include "simdjson_internal.h"
+#include "simdjson/parsedjson.h"
 
 WARN_UNUSED
 bool flatten_indexes(size_t len, ParsedJson &pj);

include/simdjson/stage34_unified.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "common_defs.h"
+#include "simdjson/common_defs.h"
-#include "simdjson_internal.h"
+#include "simdjson/parsedjson.h"
 
 void init_state_machine();
 

include/simdjson/stringparsing.h

@@ -1,8 +1,8 @@
 #pragma once
 
-#include "common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/parsedjson.h"
-#include "jsonparser/jsoncharutils.h"
+#include "simdjson/jsoncharutils.h"
 
 
 // begin copypasta

src/jsonioutil.cpp

@@ -1,4 +1,4 @@
-#include "jsonparser/jsonioutil.h"
+#include "simdjson/jsonioutil.h"
 #include <cstring>
 
 

src/jsonminifier.cpp

@@ -67,7 +67,7 @@ size_t jsonminify(const unsigned char *bytes, size_t howmany,
 #include <x86intrin.h>
 #endif // _MSC_VER
 
-#include "jsonparser/simdprune_tables.h"
+#include "simdjson/simdprune_tables.h"
 #include <cstring>
 #ifndef __clang__
 static inline __m256i _mm256_loadu2_m128i(__m128i const *__addr_hi,

src/jsonparser.cpp

@@ -1,4 +1,4 @@
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 
 // allocate a ParsedJson structure that can support document
 // up to len bytes.

src/stage1_find_marks.cpp

@@ -2,14 +2,13 @@
 /* Microsoft C/C++-compatible compiler */
 #include <intrin.h>
 #else
-#include <immintrin.h>
 #include <x86intrin.h>
 #endif
 
 #include <cassert>
 
-#include "jsonparser/common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/parsedjson.h"
 
 #define UTF8VALIDATE
 // It seems that many parsers do UTF-8 validation.
@@ -17,7 +16,7 @@
 // allows it. It appears that sajson might do utf-8
 // validation
 #ifdef UTF8VALIDATE
-#include "jsonparser/simdutf8check.h"
+#include "simdjson/simdutf8check.h"
 #endif
 using namespace std;
 
@@ -156,7 +155,7 @@ WARN_UNUSED
     u64 quote_mask = _mm_cvtsi128_si64(_mm_clmulepi64_si128(
         _mm_set_epi64x(0ULL, quote_bits), _mm_set1_epi8(0xFF), 0));
     quote_mask ^= prev_iter_inside_quote;
-    prev_iter_inside_quote = (u64)((s64)quote_mask >> 63);
+    prev_iter_inside_quote = (u64)((s64)quote_mask >> 63); // right shift of a signed value expected to be well-defined and standard compliant as of C++20
     dumpbits(quote_mask, "quote_mask");
 
     // How do we build up a user traversable data structure

src/stage2_flatten.cpp

@@ -2,14 +2,13 @@
 /* Microsoft C/C++-compatible compiler */
 #include <intrin.h>
 #else
-#include <immintrin.h>
 #include <x86intrin.h>
 #endif
 
 #include <cassert>
 
-#include "jsonparser/common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/parsedjson.h"
 
 #ifndef NO_PDEP_PLEASE
 #define NO_PDEP_PLEASE // though this is not always a win, it seems to 

src/stage34_unified.cpp

@@ -2,18 +2,17 @@
 /* Microsoft C/C++-compatible compiler */
 #include <intrin.h>
 #else
-#include <immintrin.h>
 #include <x86intrin.h>
 #endif
 
 #include <cassert>
 #include <cstring>
 
-#include "jsonparser/common_defs.h"
+#include "simdjson/common_defs.h"
-#include "jsonparser/jsoncharutils.h"
+#include "simdjson/jsoncharutils.h"
-#include "jsonparser/numberparsing.h"
+#include "simdjson/numberparsing.h"
-#include "jsonparser/simdjson_internal.h"
+#include "simdjson/parsedjson.h"
-#include "jsonparser/stringparsing.h"
+#include "simdjson/stringparsing.h"
 
 #include <iostream>
 //#define DEBUG

tests/allparserscheckfile.cpp

@@ -1,6 +1,6 @@
 #include <unistd.h>
 
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 
 
 // #define RAPIDJSON_SSE2 // bad

tests/jsoncheck.cpp

@@ -7,7 +7,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 
 /**
  * Does the file filename ends with the given extension.

tests/numberparsingcheck.cpp

@@ -11,7 +11,7 @@
 #define JSON_TEST_NUMBERS
 #endif
 
-#include "jsonparser/common_defs.h"
+#include "simdjson/common_defs.h"
 
 int parse_error;
 char *fullpath;
@@ -82,7 +82,7 @@ inline void foundFloat(double result, const u8 *buf) {
   }
 }
 
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 #include "src/stage34_unified.cpp"
 
 /**

tests/stringparsingcheck.cpp

@@ -11,7 +11,7 @@
 #define JSON_TEST_STRINGS
 #endif
 
-#include "jsonparser/common_defs.h"
+#include "simdjson/common_defs.h"
 
 char *fullpath;
 
@@ -281,7 +281,7 @@ inline void foundString(const u8 *buf, const u8 *parsed_begin,
   }
 }
 
-#include "jsonparser/jsonparser.h"
+#include "simdjson/jsonparser.h"
 #include "src/stage34_unified.cpp"
 
 /**

tools/minify.cpp

@@ -1,7 +1,7 @@
 #include <iostream>
 
-#include "jsonparser/jsonioutil.h"
+#include "simdjson/jsonioutil.h"
-#include "jsonparser/jsonminifier.h"
+#include "simdjson/jsonminifier.h"
 
 int main(int argc, char *argv[]) {
   if (argc != 2) {