Remove :static_symbol result field names

They were just for performance testing, but they have the same speed as :symbol.

Author: larskanis

ext/pg.h

@@ -116,7 +116,7 @@ typedef struct {
 	/* Ruby encoding index of the client/internal encoding */
 	int enc_idx : PG_ENC_IDX_BITS;
 	/* flags controlling Symbol/String field names */
-	unsigned int flags : 2;
+	unsigned int flags : 1;
 	/* enable automatic flushing of send data at the end of send_query calls */
 	unsigned int flush_data : 1;
 
@@ -151,7 +151,7 @@ typedef struct {
 	unsigned int autoclear : 1;
 
 	/* flags controlling Symbol/String field names */
-	unsigned int flags : 2;
+	unsigned int flags : 1;
 
 	/* Number of fields in fnames[] .
 	 * Set to -1 if fnames[] is not yet initialized.
@@ -181,9 +181,8 @@ typedef VALUE (* t_pg_typecast_result)(t_typemap *, VALUE, int, int);
 typedef t_pg_coder *(* t_pg_typecast_query_param)(t_typemap *, VALUE, int);
 typedef VALUE (* t_pg_typecast_copy_get)( t_typemap *, VALUE, int, int, int );
 
-#define PG_RESULT_FIELD_NAMES_MASK 0x03
+#define PG_RESULT_FIELD_NAMES_MASK 0x01
 #define PG_RESULT_FIELD_NAMES_SYMBOL 0x01
-#define PG_RESULT_FIELD_NAMES_STATIC_SYMBOL 0x02
 
 #define PG_CODER_TIMESTAMP_DB_UTC 0x0
 #define PG_CODER_TIMESTAMP_DB_LOCAL 0x1

ext/pg_connection.c

@@ -14,7 +14,7 @@ VALUE rb_cPGconn;
 static ID s_id_encode;
 static ID s_id_autoclose_set;
 static VALUE sym_type, sym_format, sym_value;
-static VALUE sym_symbol, sym_string, sym_static_symbol;
+static VALUE sym_symbol, sym_string;
 
 static VALUE pgconn_finish( VALUE );
 static VALUE pgconn_set_default_encoding( VALUE self );
@@ -4642,7 +4642,6 @@ pgconn_field_name_type_set(VALUE self, VALUE sym)
 	rb_check_frozen(self);
 	this->flags &= ~PG_RESULT_FIELD_NAMES_MASK;
 	if( sym == sym_symbol ) this->flags |= PG_RESULT_FIELD_NAMES_SYMBOL;
-	else if ( sym == sym_static_symbol ) this->flags |= PG_RESULT_FIELD_NAMES_STATIC_SYMBOL;
 	else if ( sym == sym_string );
 	else rb_raise(rb_eArgError, "invalid argument %+"PRIsVALUE, sym);
 
@@ -4664,8 +4663,6 @@ pgconn_field_name_type_get(VALUE self)
 
 	if( this->flags & PG_RESULT_FIELD_NAMES_SYMBOL ){
 		return sym_symbol;
-	} else if( this->flags & PG_RESULT_FIELD_NAMES_STATIC_SYMBOL ){
-		return sym_static_symbol;
 	} else {
 		return sym_string;
 	}
@@ -4685,7 +4682,6 @@ init_pg_connection(void)
 	sym_value = ID2SYM(rb_intern("value"));
 	sym_string = ID2SYM(rb_intern("string"));
 	sym_symbol = ID2SYM(rb_intern("symbol"));
-	sym_static_symbol = ID2SYM(rb_intern("static_symbol"));
 
 	rb_cPGconn = rb_define_class_under( rb_mPG, "Connection", rb_cObject );
 	/* Help rdoc to known the Constants module */

ext/pg_result.c

@@ -7,7 +7,7 @@
 #include "pg.h"
 
 VALUE rb_cPGresult;
-static VALUE sym_symbol, sym_string, sym_static_symbol;
+static VALUE sym_symbol, sym_string;
 
 static VALUE pgresult_type_map_set( VALUE, VALUE );
 static t_pg_result *pgresult_get_this( VALUE );
@@ -465,9 +465,6 @@ pgresult_get(VALUE self)
 static VALUE pg_cstr_to_sym(char *cstr, unsigned int flags, int enc_idx)
 {
 	VALUE fname;
-#ifdef TRUFFLERUBY
-	if( flags & (PG_RESULT_FIELD_NAMES_SYMBOL | PG_RESULT_FIELD_NAMES_STATIC_SYMBOL) ){
-#else
 	if( flags & PG_RESULT_FIELD_NAMES_SYMBOL ){
 		rb_encoding *enc = rb_enc_from_index(enc_idx);
 		fname = rb_check_symbol_cstr(cstr, strlen(cstr), enc);
@@ -476,10 +473,6 @@ static VALUE pg_cstr_to_sym(char *cstr, unsigned int flags, int enc_idx)
 			PG_ENCODING_SET_NOCHECK(fname, enc_idx);
 			fname = rb_str_intern(fname);
 		}
-	} else if( flags & PG_RESULT_FIELD_NAMES_STATIC_SYMBOL ){
-#endif
-		rb_encoding *enc = rb_enc_from_index(enc_idx);
-		fname = ID2SYM(rb_intern3(cstr, strlen(cstr), enc));
 	} else {
 		fname = rb_str_new2(cstr);
 		PG_ENCODING_SET_NOCHECK(fname, enc_idx);
@@ -1692,7 +1685,6 @@ pgresult_stream_each_tuple(VALUE self)
  * It can be set to one of:
  * * +:string+ to use String based field names
  * * +:symbol+ to use Symbol based field names
- * * +:static_symbol+ to use pinned Symbol (can not be garbage collected) - Don't use this, it will probably be removed in future.
  *
  * The default is retrieved from PG::Connection#field_name_type , which defaults to +:string+ .
  *
@@ -1715,7 +1707,6 @@ pgresult_field_name_type_set(VALUE self, VALUE sym)
 
 	this->flags &= ~PG_RESULT_FIELD_NAMES_MASK;
 	if( sym == sym_symbol ) this->flags |= PG_RESULT_FIELD_NAMES_SYMBOL;
-	else if ( sym == sym_static_symbol ) this->flags |= PG_RESULT_FIELD_NAMES_STATIC_SYMBOL;
 	else if ( sym == sym_string );
 	else rb_raise(rb_eArgError, "invalid argument %+"PRIsVALUE, sym);
 
@@ -1736,8 +1727,6 @@ pgresult_field_name_type_get(VALUE self)
 	t_pg_result *this = pgresult_get_this(self);
 	if( this->flags & PG_RESULT_FIELD_NAMES_SYMBOL ){
 		return sym_symbol;
-	} else if( this->flags & PG_RESULT_FIELD_NAMES_STATIC_SYMBOL ){
-		return sym_static_symbol;
 	} else {
 		return sym_string;
 	}
@@ -1748,7 +1737,6 @@ init_pg_result(void)
 {
 	sym_string = ID2SYM(rb_intern("string"));
 	sym_symbol = ID2SYM(rb_intern("symbol"));
-	sym_static_symbol = ID2SYM(rb_intern("static_symbol"));
 
 	rb_cPGresult = rb_define_class_under( rb_mPG, "Result", rb_cObject );
 	rb_undef_alloc_func(rb_cPGresult);

spec/pg/result_spec.rb

@@ -78,11 +78,6 @@
 			expect(res.field_name_type).to eq(:symbol)
 		end
 
-		it "can set static_symbol field names" do
-			res.field_name_type = :static_symbol
-			expect(res.field_name_type).to eq(:static_symbol)
-		end
-
 		it "can't set symbol field names after #fields" do
 			res.fields
 			expect{ res.field_name_type = :symbol }.to raise_error(ArgumentError, /already materialized/)
@@ -108,13 +103,6 @@
 		expect( res[0][:b] ).to eq( '2' )
 	end
 
-	it "acts as an array of hashes with static_symbols" do
-		res = @conn.exec("SELECT 1 AS a, 2 AS b")
-		res.field_name_type = :static_symbol
-		expect( res[0][:a] ).to eq( '1' )
-		expect( res[0][:b] ).to eq( '2' )
-	end
-
 	it "yields a row as an array" do
 		res = @conn.exec("SELECT 1 AS a, 2 AS b")
 		list = []