Remove JQ_DEBUG #define and jq_test binary, simplifying build.

The debugging features previously available via JQ_DEBUG are now
command-line options.

Makefile

@@ -26,19 +26,15 @@ main.c: version.gen.h
 
 JQ_SRC=parser.gen.c lexer.gen.c opcode.c bytecode.c compile.c execute.c builtin.c jv.c jv_parse.c jv_print.c jv_dtoa.c jv_unicode.c jv_aux.c jv_alloc.c
 
-jq_test: CFLAGS += -DJQ_DEBUG=1
-jq_test: $(JQ_SRC) main.c jq_test.c
-	$(CC) $(CFLAGS) $(CFLAGS_DEBUG) -o $@ $^
 
-jq: CFLAGS += -O -DJQ_DEBUG=0
 jq: $(JQ_SRC) main.c jq_test.c
 	$(CC) $(CFLAGS) $(CFLAGS_OPT) -o $@ $^
 
-test: jq_test
-	valgrind --error-exitcode=1 -q --leak-check=full ./jq_test --run-tests >/dev/null
+test: jq
+	valgrind --error-exitcode=1 -q --leak-check=full ./jq --run-tests >/dev/null
 
 LIBRARIES=libjq
-BINARIES=jq jq_test
+BINARIES=jq
 PLATFORMS=linux32 linux64 osx32 osx64 win32 win64
 
 build/linux32%: CC='x86_64-linux-gnu-gcc -m32'

execute.c

@@ -29,6 +29,7 @@ struct jq_state {
   struct forkable_stack fork_stk;
   jv* pathbuf;
   int pathsize; // number of allocated elements
+  int debug_trace_enabled;
 };
 
 int path_push(jq_state *jq, stackval sv, jv val) {
@@ -162,7 +163,7 @@ jv jq_next(jq_state *jq) {
   while (1) {
     uint16_t opcode = *pc;
 
-#if JQ_DEBUG
+    if (jq->debug_trace_enabled) {
       dump_operation(frame_current_bytecode(&jq->frame_stk), pc);
       printf("\t");
       const struct opcode_description* opdesc = opcode_describe(opcode);
@@ -184,7 +185,7 @@ jv jq_next(jq_state *jq) {
       if (backtracking) printf("\t<backtracking>");
 
       printf("\n");
-#endif
+    }
     if (backtracking) {
       opcode = ON_BACKTRACK(opcode);
       backtracking = 0;
@@ -265,11 +266,11 @@ jv jq_next(jq_state *jq) {
       uint16_t v = *pc++;
       frame_ptr fp = frame_get_level(&jq->frame_stk, frame_current(&jq->frame_stk), level);
       jv* var = frame_local_var(fp, v);
-      #if JQ_DEBUG
+      if (jq->debug_trace_enabled) {
         printf("V%d = ", v);
         jv_dump(jv_copy(*var), 0);
         printf("\n");
-      #endif
+      }
       stack_push(jq, stackval_replace(stack_pop(jq), jv_copy(*var)));
       break;
     }
@@ -280,11 +281,11 @@ jv jq_next(jq_state *jq) {
       frame_ptr fp = frame_get_level(&jq->frame_stk, frame_current(&jq->frame_stk), level);
       jv* var = frame_local_var(fp, v);
       stackval val = stack_pop(jq);
-      #if JQ_DEBUG
+      if (jq->debug_trace_enabled) {
         printf("V%d = ", v);
         jv_dump(jv_copy(val.value), 0);
         printf("\n");
-      #endif
+      }
       jv_free(*var);
       *var = val.value;
       break;
@@ -463,7 +464,7 @@ jv jq_next(jq_state *jq) {
 }
 
 
-void jq_init(struct bytecode* bc, jv input, jq_state **jq) {
+void jq_init(struct bytecode* bc, jv input, jq_state **jq, int flags) {
   jq_state *new_jq;
   new_jq = jv_mem_alloc(sizeof(*new_jq));
   memset(new_jq, 0, sizeof(*new_jq));
@@ -475,6 +476,11 @@ void jq_init(struct bytecode* bc, jv input, jq_state **jq) {
   struct closure top = {bc, -1};
   frame_push(&new_jq->frame_stk, top, 0);
   frame_push_backtrack(&new_jq->frame_stk, bc->code);
+  if (flags & JQ_DEBUG_TRACE) {
+    new_jq->debug_trace_enabled = 1;
+  } else {
+    new_jq->debug_trace_enabled = 0;
+  }
   *jq = new_jq;
 }
 

execute.h

@@ -6,8 +6,9 @@
 struct bytecode* jq_compile(const char* str);
 
 typedef struct jq_state jq_state;
+enum {JQ_DEBUG_TRACE = 1};
 
-void jq_init(struct bytecode* bc, jv value, jq_state **);
+void jq_init(struct bytecode* bc, jv value, jq_state **, int flags);
 jv jq_next(jq_state *);
 void jq_teardown(jq_state **);
 

jq_test.c

@@ -59,7 +59,7 @@ static void run_jq_tests() {
     fgets(buf, sizeof(buf), testdata);
     jv input = jv_parse(buf);
     if (!jv_is_valid(input)){ invalid++; continue; }
-    jq_init(bc, input, &jq);
+    jq_init(bc, input, &jq, JQ_DEBUG_TRACE);
 
     while (fgets(buf, sizeof(buf), testdata)) {
       if (skipline(buf)) break;

jv_alloc.c

@@ -27,7 +27,7 @@ void* jv_mem_realloc(void* p, size_t sz) {
   return p;
 }
 
-#if JQ_DEBUG
+#ifndef NDEBUG
 volatile char jv_mem_uninitialised;
 __attribute__((constructor)) void jv_mem_uninit_setup(){
   char* p = malloc(1);

jv_alloc.h

@@ -3,12 +3,12 @@
 
 #include <stddef.h>
 
-#if JQ_DEBUG
+#ifndef NDEBUG
 extern volatile char jv_mem_uninitialised;
 #endif
 
 static void jv_mem_invalidate(void* mem, size_t n) {
-#if JQ_DEBUG
+#ifndef NDEBUG
   char* m = mem;
   while (n--) *m++ ^= jv_mem_uninitialised ^ jv_mem_uninitialised;
 #endif

main.c

@@ -64,9 +64,9 @@ enum {
 static int options = 0;
 static struct bytecode* bc;
 
-static void process(jv value) {
+static void process(jv value, int flags) {
   jq_state *jq = NULL;
-  jq_init(bc, value, &jq);
+  jq_init(bc, value, &jq, flags);
   jv result;
   while (jv_is_valid(result = jq_next(jq))) {
     if ((options & RAW_OUTPUT) && jv_get_kind(result) == JV_KIND_STRING) {
@@ -153,6 +153,7 @@ int main(int argc, char* argv[]) {
   input_filenames = jv_mem_alloc(sizeof(const char*) * argc);
   ninput_files = 0;
   int further_args_are_files = 0;
+  int jq_flags = 0;
   for (int i=1; i<argc; i++) {
     if (further_args_are_files) {
       input_filenames[ninput_files++] = argv[i];
@@ -185,6 +186,8 @@ int main(int argc, char* argv[]) {
       options |= FROM_FILE;
     } else if (isoption(argv[i],  0,  "debug-dump-disasm")) {
       options |= DUMP_DISASM;
+    } else if (isoption(argv[i],  0,  "debug-trace")) {
+      jq_flags |= JQ_DEBUG_TRACE;
     } else if (isoption(argv[i], 'h', "help")) {
       usage();
     } else if (isoption(argv[i], 'V', "version")) {
@@ -224,7 +227,7 @@ int main(int argc, char* argv[]) {
   }
 
   if (options & PROVIDE_NULL) {
-    process(jv_null());
+    process(jv_null(), jq_flags);
   } else {
     jv slurped;
     if (options & SLURP) {
@@ -245,7 +248,7 @@ int main(int argc, char* argv[]) {
             slurped = jv_string_concat(slurped, jv_string(buf));
           } else {
             if (buf[len-1] == '\n') buf[len-1] = 0;
-            process(jv_string(buf));
+            process(jv_string(buf), jq_flags);
           }
         }
       } else {
@@ -255,7 +258,7 @@ int main(int argc, char* argv[]) {
           if (options & SLURP) {
             slurped = jv_array_append(slurped, value);
           } else {
-            process(value);
+            process(value, jq_flags);
           }
         }
         if (jv_invalid_has_msg(jv_copy(value))) {
@@ -270,7 +273,7 @@ int main(int argc, char* argv[]) {
     }
     jv_parser_free(&parser);
     if (options & SLURP) {
-      process(slurped);
+      process(slurped, jq_flags);
     }
   }
   jv_mem_free(input_filenames);