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Regex's Range changed from class to struct. This change reduces unnecessary memory allocation

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This commit is contained in:
Masahiro Nakagawa 2010-11-13 21:02:24 +00:00
parent b18edad5eb
commit c7d4be3fbc
1 changed files with 4 additions and 4 deletions
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8
std/regex.d
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@ -387,7 +387,7 @@ Returns the number of parenthesized captures
case REgoto: case REgoto:
{ {
auto bitbuf = new OutBuffer; auto bitbuf = new OutBuffer;
auto r = new Range(bitbuf); auto r = Range(bitbuf);
size_t offset = i; size_t offset = i;
if (starrchars(r, prog[i .. prog.length])) if (starrchars(r, prog[i .. prog.length]))
{ {
@ -755,7 +755,7 @@ Returns the number of parenthesized captures
return 1; return 1;
} }
class Range struct Range
{ {
uint maxc; uint maxc;
uint maxb; uint maxb;
@ -821,7 +821,7 @@ Returns the number of parenthesized captures
offset = buf.offset; offset = buf.offset;
buf.write(cast(uint)0); // reserve space for length buf.write(cast(uint)0); // reserve space for length
buf.reserve(128 / 8); buf.reserve(128 / 8);
auto r = new Range(buf); auto r = Range(buf);
if (op == REnotbit) if (op == REnotbit)
r.setbit2(0); r.setbit2(0);
switch (pattern[p]) switch (pattern[p])
@ -994,7 +994,7 @@ Returns the number of parenthesized captures
// Return 1 if success, 0 if we can't build a filter or if there is no // Return 1 if success, 0 if we can't build a filter or if there is no
// point to one. // point to one.
bool starrchars(Range r, const(ubyte)[] prog) bool starrchars(ref Range r, const(ubyte)[] prog)
{ {
E c; E c;
uint maxc; uint maxc;