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extensive rewrite of generation & execution of run-time initialization

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This commit is contained in:
Vern Paxson 2021-11-07 17:00:19 -08:00
parent bc3bf4ea6c
commit e1a760e674
26 changed files with 3459 additions and 1580 deletions
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65
src/script_opt/CPP/Emit.cc
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@ -13,75 +13,14 @@ using namespace std;
void CPPCompile::StartBlock()
{
++block_level;
IndentUp();
Emit("{");
}
void CPPCompile::EndBlock(bool needs_semi)
{
Emit("}%s", needs_semi ? ";" : "");
--block_level;
}
string CPPCompile::GenString(const char* b, int len) const
{
return string("make_intrusive<StringVal>(") + Fmt(len) + ", " + CPPEscape(b, len) + ")";
}
string CPPCompile::CPPEscape(const char* b, int len) const
{
string res = "\"";
for ( int i = 0; i < len; ++i )
{
unsigned char c = b[i];
switch ( c )
{
case '\a':
res += "\\a";
break;
case '\b':
res += "\\b";
break;
case '\f':
res += "\\f";
break;
case '\n':
res += "\\n";
break;
case '\r':
res += "\\r";
break;
case '\t':
res += "\\t";
break;
case '\v':
res += "\\v";
break;
case '\\':
res += "\\\\";
break;
case '"':
res += "\\\"";
break;
default:
if ( isprint(c) )
res += c;
else
{
char buf[8192];
snprintf(buf, sizeof buf, "%03o", c);
res += "\\";
res += buf;
}
break;
}
}
return res + "\"";
IndentDown();
}
void CPPCompile::Indent() const