Added RegExp dotAll flag (#4000)

JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu

jerry-core/parser/js/js-lexer.c

@@ -2816,6 +2816,12 @@ lexer_construct_regexp_object (parser_context_t *context_p, /**< context */
     {
       flag = RE_FLAG_STICKY;
     }
+#if ENABLED (JERRY_ESNEXT)
+    else if (source_p[0] == LIT_CHAR_LOWERCASE_S)
+    {
+      flag = RE_FLAG_DOTALL;
+    }
+#endif /* ENABLED (JERRY_ESNEXT) */
 
     if (flag == 0)
     {

jerry-core/parser/regexp/re-bytecode.h

@@ -36,11 +36,6 @@
   */
 #define RE_CACHE_SIZE 8u
 
-/**
-  * RegExp flags mask (first 10 bits are for reference count and the rest for the actual RegExp flags)
-  */
-#define RE_FLAGS_MASK 0x3F
-
 /**
  * Maximum value that can be encoded in the RegExp bytecode as a single byte.
  */

jerry-core/parser/regexp/re-compiler.c

@@ -61,7 +61,7 @@ re_cache_lookup (ecma_string_t *pattern_str_p, /**< pattern string */
 
     ecma_string_t *cached_pattern_str_p = ecma_get_string_from_value (cached_bytecode_p->source);
 
-    if ((cached_bytecode_p->header.status_flags & RE_FLAGS_MASK) == flags
+    if (cached_bytecode_p->header.status_flags == flags
         && ecma_compare_ecma_strings (cached_pattern_str_p, pattern_str_p))
     {
       return cached_bytecode_p;