Wed, 13 Feb 2013 13:30:21 +0100
8008096: TokenStream buffer should grow exponentially
Reviewed-by: attila, lagergren, sundar
src/jdk/nashorn/internal/parser/TokenStream.java | file | annotate | diff | comparison | revisions |
1.1 --- a/src/jdk/nashorn/internal/parser/TokenStream.java Tue Feb 12 12:47:51 2013 +0100 1.2 +++ b/src/jdk/nashorn/internal/parser/TokenStream.java Wed Feb 13 13:30:21 2013 +0100 1.3 @@ -34,8 +34,8 @@ 1.4 * 1.5 */ 1.6 public class TokenStream { 1.7 - /** Buffer growth factor. */ 1.8 - private static final int growth = 256; 1.9 + /** Initial buffer size. */ 1.10 + private static final int INITIAL_SIZE = 256; 1.11 1.12 /** Token buffer. */ 1.13 private long[] buffer; 1.14 @@ -56,7 +56,7 @@ 1.15 * Constructor. 1.16 */ 1.17 public TokenStream() { 1.18 - buffer = new long[growth]; 1.19 + buffer = new long[INITIAL_SIZE]; 1.20 count = 0; 1.21 in = 0; 1.22 out = 0; 1.23 @@ -193,7 +193,7 @@ 1.24 */ 1.25 public void grow() { 1.26 // Allocate new buffer. 1.27 - final long[] newBuffer = new long[buffer.length + growth]; 1.28 + final long[] newBuffer = new long[buffer.length * 2]; 1.29 1.30 // If single chunk. 1.31 if (in > out) {