1 Commits

Author SHA1 Message Date
Gašper Dobrovoljc
d64e597414 Replaced mul with times in initializers 2025-06-03 17:16:34 +02:00
6 changed files with 14 additions and 44 deletions

1
.gitignore vendored
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@@ -3,3 +3,4 @@ out/
*.zip
prg/**/*.ast
prg/**/*.out
prg/**/*.pins25

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@@ -1,12 +0,0 @@
fun putstr(s)
fun f1() =
putstr("funkcija 1\n\00"),
0
fun f2() =
putstr("funkcija 2\n\00"),
0
fun main() =
f1() || f2()

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@@ -69,6 +69,10 @@ public record Token(Report.Location location, Symbol symbol, String lexeme) impl
* Kljucna beseda {@code in}.
*/
IN,
/**
* Kljucna beseda {@code times}.
*/
TIMES,
/**
* Kljucna beseda {@code end}.
*/

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@@ -227,10 +227,13 @@ public class CodeGen {
@Override
public List<PDM.CodeInstr> visit(AST.BinExpr binExpr, Mem.Frame frame) {
Report.Location loc = attrAST.attrLoc.get(binExpr).location();
Report.Locatable loc = attrAST.attrLoc.get(binExpr);
List<PDM.CodeInstr> code = new ArrayList<>();
code.addAll(binExpr.fstExpr.accept(this, frame));
code.addAll(binExpr.sndExpr.accept(this, frame));
PDM.OPER.Oper oper = switch (binExpr.oper) {
case OR -> PDM.OPER.Oper.OR;
case AND -> PDM.OPER.Oper.AND;
@@ -247,34 +250,7 @@ public class CodeGen {
case MOD -> PDM.OPER.Oper.MOD;
};
if (oper == PDM.OPER.Oper.OR) {
String locStr = loc.begLine() + ":" + loc.begColumn();
String rightLabel = "$or:right" + locStr;
String skipLabel = "$or:skip@" + locStr;
String endLabel = "$or:end@" + locStr;
code.addAll(binExpr.fstExpr.accept(this, frame));
code.add(new PDM.NAME(skipLabel, loc));
code.add(new PDM.NAME(rightLabel, loc));
code.add(new PDM.CJMP(loc));
code.add(new PDM.LABEL(rightLabel, loc));
code.add(new PDM.PUSH(0, loc));
code.addAll(binExpr.sndExpr.accept(this, frame));
code.add(new PDM.OPER(oper, loc));
code.add(new PDM.NAME(endLabel, loc));
code.add(new PDM.UJMP(loc));
code.add(new PDM.LABEL(skipLabel, loc));
code.add(new PDM.PUSH(1, loc));
code.add(new PDM.LABEL(endLabel, loc));
} else {
code.addAll(binExpr.fstExpr.accept(this, frame));
code.addAll(binExpr.sndExpr.accept(this, frame));
code.add(new PDM.OPER(oper, loc));
}
attrAST.attrCode.put(binExpr, code);
return code;

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@@ -319,6 +319,7 @@ public class LexAn implements AutoCloseable {
case "let" -> Token.Symbol.LET;
case "in" -> Token.Symbol.IN;
case "end" -> Token.Symbol.END;
case "times" -> Token.Symbol.TIMES;
default -> null;
};
}

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@@ -360,9 +360,9 @@ public class SynAn implements AutoCloseable {
private AST.AtomExpr parseIntegerConstantMultiplier() {
Token token = lexAn.peekToken();
if (token.symbol() == Token.Symbol.MUL) {
// intconstmult -> MUL const
check(Token.Symbol.MUL);
if (token.symbol() == Token.Symbol.TIMES) {
// intconstmult -> TIMES const
check(Token.Symbol.TIMES);
return parseConstant();
}
// intconstmult -> ε