Move booleans on the parser to the end so they are more compact

Author: kddnewton

include/yarp/parser.h

@@ -291,7 +291,6 @@ typedef struct yp_scope {
 // it's considering.
 struct yp_parser {
     yp_lex_state_t lex_state; // the current state of the lexer
-    bool command_start;       // whether or not we're at the beginning of a command
     int enclosure_nesting;    // tracks the current nesting of (), [], and {}
 
     // Used to temporarily track the nesting of enclosures to determine if a {
@@ -338,17 +337,11 @@ struct yp_parser {
     yp_scope_t *current_scope;          // the current local scope
 
     yp_context_node_t *current_context; // the current parsing context
-    bool recovering; // whether or not we're currently recovering from a syntax error
 
     // The encoding functions for the current file is attached to the parser as
     // it's parsing so that it can change with a magic comment.
     yp_encoding_t encoding;
 
-    // Whether or not the encoding has been changed by a magic comment. We use
-    // this to provide a fast path for the lexer instead of going through the
-    // function pointer.
-    bool encoding_changed;
-
     // When the encoding that is being used to parse the source is changed by
     // YARP, we provide the ability here to call out to a user-defined function.
     yp_encoding_changed_callback_t encoding_changed_callback;
@@ -367,13 +360,6 @@ struct yp_parser {
     // be called whenever a new token is lexed by the parser.
     yp_lex_callback_t *lex_callback;
 
-    // This flag indicates that we are currently parsing a pattern matching
-    // expression and impacts that calculation of newlines.
-    bool pattern_matching_newlines;
-
-    // This flag indicates that we are currently parsing a keyword argument.
-    bool in_keyword_arg;
-
     // This is the path of the file being parsed
     // We use the filepath when constructing SourceFileNodes
     yp_string_t filepath_string;
@@ -390,6 +376,24 @@ struct yp_parser {
     // communicate this information. So we store it here and pass it through
     // when we find tokens that we need it for.
     yp_node_flags_t integer_base;
+
+    // Whether or not we're at the beginning of a command
+    unsigned int command_start : 1;
+
+    // Whether or not we're currently recovering from a syntax error
+    unsigned int recovering : 1;
+
+    // Whether or not the encoding has been changed by a magic comment. We use
+    // this to provide a fast path for the lexer instead of going through the
+    // function pointer.
+    unsigned int encoding_changed : 1;
+
+    // This flag indicates that we are currently parsing a pattern matching
+    // expression and impacts that calculation of newlines.
+    unsigned int pattern_matching_newlines : 1;
+
+    // This flag indicates that we are currently parsing a keyword argument.
+    unsigned int in_keyword_arg : 1;
 };
 
 #endif // YARP_PARSER_H