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groupByFragment: make fewer string copies

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This commit is contained in:
Justin Viiret 2017-08-04 10:06:20 +10:00 committed by Matthew Barr
parent 8eb55d4242
commit ba1df6412b
1 changed files with 6 additions and 10 deletions
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16
src/rose/rose_build_bytecode.cpp
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@ -2767,17 +2767,13 @@ bool isUsedLiteral(const RoseBuildImpl &build, u32 lit_id) {
}
static
rose_literal_id getFragment(const rose_literal_id &lit) {
if (lit.s.length() <= ROSE_SHORT_LITERAL_LEN_MAX) {
DEBUG_PRINTF("whole lit is frag\n");
return lit;
rose_literal_id getFragment(rose_literal_id lit) {
if (lit.s.length() > ROSE_SHORT_LITERAL_LEN_MAX) {
// Trim to last ROSE_SHORT_LITERAL_LEN_MAX bytes.
lit.s.erase(0, lit.s.length() - ROSE_SHORT_LITERAL_LEN_MAX);
}
rose_literal_id frag = lit;
frag.s = frag.s.substr(frag.s.length() - ROSE_SHORT_LITERAL_LEN_MAX);
DEBUG_PRINTF("fragment: %s\n", dumpString(frag.s).c_str());
return frag;
DEBUG_PRINTF("fragment: %s\n", dumpString(lit.s).c_str());
return lit;
}
static