mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-14 02:06:16 +02:00
109 lines
3.3 KiB
Perl
109 lines
3.3 KiB
Perl
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#! /usr/bin/perl -w
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die if scalar @ARGV != 2;
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my $syms = "";
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my $init = "";
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open HEADER, ">$ARGV[0]";
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open IMPL, ">$ARGV[1]";
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while (<STDIN>) {
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next if (/^\s*$/);
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if (/^\s*(\w+)\s*\|([^\|]*)\|\s*(\w+)\s*\|\s*(\w+)?/) {
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my $const = $1;
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my @types = split ' ', $2;
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my $result = $3;
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my $funname = $4;
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$funname = $const unless defined $funname;
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my $formals = "";
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my $formals2 = "";
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my $args = "";
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my $unpack = "";
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my $n = 1;
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foreach my $type (@types) {
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$args .= ", ";
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if ($type eq "string") {
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# $args .= "(ATerm) ATmakeAppl0(ATmakeAFun((char *) e$n, 0, ATtrue))";
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# $type = "const char *";
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$type = "ATerm";
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$args .= "e$n";
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} elsif ($type eq "int") {
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$args .= "(ATerm) ATmakeInt(e$n)";
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} elsif ($type eq "ATermList" || $type eq "ATermBlob") {
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$args .= "(ATerm) e$n";
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} else {
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$args .= "e$n";
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}
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$formals .= ", " if $formals ne "";
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$formals .= "$type e$n";
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$formals2 .= ", ";
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$formals2 .= "$type & e$n";
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my $m = $n - 1;
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if ($type eq "int") {
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$unpack .= " e$n = ATgetInt((ATermInt) ATgetArgument(e, $m));\n";
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} elsif ($type eq "ATermList") {
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$unpack .= " e$n = (ATermList) ATgetArgument(e, $m);\n";
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} elsif ($type eq "ATermBlob") {
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$unpack .= " e$n = (ATermBlob) ATgetArgument(e, $m);\n";
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} else {
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$unpack .= " e$n = ATgetArgument(e, $m);\n";
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}
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$n++;
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}
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my $arity = scalar @types;
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print HEADER "extern AFun sym$funname;\n\n";
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print IMPL "AFun sym$funname = 0;\n";
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print HEADER "static inline $result make$funname($formals) {\n";
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print HEADER " return (ATerm) ATmakeAppl$arity(sym$funname$args);\n";
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print HEADER "}\n\n";
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print HEADER "#ifdef __cplusplus\n";
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print HEADER "static inline bool match$funname(ATerm e$formals2) {\n";
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print HEADER " if (ATgetAFun(e) != sym$funname) return false;\n";
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print HEADER "$unpack";
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print HEADER " return true;\n";
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print HEADER "}\n";
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print HEADER "#endif\n\n\n";
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$init .= " sym$funname = ATmakeAFun(\"$const\", $arity, ATfalse);\n";
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$init .= " ATprotectAFun(sym$funname);\n";
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}
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elsif (/^\s*(\w+)\s*=\s*(.*)$/) {
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my $name = $1;
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my $value = $2;
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print HEADER "extern ATerm $name;\n";
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print IMPL "ATerm $name = 0;\n";
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$init .= " $name = $value;\n";
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}
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else {
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die "bad line: `$_'";
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}
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}
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print HEADER "void initSyms();\n\n";
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print HEADER "static inline ATerm string2ATerm(const char * s) {\n";
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print HEADER " return (ATerm) ATmakeAppl0(ATmakeAFun((char *) s, 0, ATtrue));\n";
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print HEADER "}\n\n";
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print HEADER "static inline const char * aterm2String(ATerm t) {\n";
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print HEADER " return (const char *) ATgetName(ATgetAFun(t));\n";
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print HEADER "}\n\n";
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print IMPL "\n";
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print IMPL "void initSyms() {\n";
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print IMPL "$init";
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print IMPL "}\n";
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close HEADER;
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close IMPL;
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