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 17 additions and 15 deletions

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

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@@ -39,9 +39,8 @@ restcmp -> EQU addexpr
| .
addexpr -> multexpr restadd .
restadd -> ADD addexpr
| SUB addexpr
| .
restadd -> ADD multexpr restadd
| SUB multexpr restadd | .
multexpr -> prefixexpr restmult .
restmult -> MUL prefixexpr restmult

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@@ -1,3 +0,0 @@
fun main() =
3 - 2 - 1

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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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@@ -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
@@ -540,20 +540,20 @@ public class SynAn implements AutoCloseable {
Token token = lexAn.peekToken();
switch (token.symbol()) {
case ADD: {
// restadd -> ADD addexpr
// restadd -> ADD multexpr restadd
check(Token.Symbol.ADD);
AST.Expr right = parseAdditionExpression();
AST.Expr right = parseMultiplicationExpression();
AST.Expr binExpr = new AST.BinExpr(AST.BinExpr.Oper.ADD, left, right);
attrLoc.put(binExpr, new Report.Location(attrLoc.get(left), attrLoc.get(right)));
return binExpr;
return parseRestAdditionExpressions(binExpr);
}
case SUB: {
// restadd -> ADD addexpr
// restadd -> SUB multexpr restadd
check(Token.Symbol.SUB);
AST.Expr right = parseAdditionExpression();
AST.Expr right = parseMultiplicationExpression();
AST.Expr binExpr = new AST.BinExpr(AST.BinExpr.Oper.SUB, left, right);
attrLoc.put(binExpr, new Report.Location(attrLoc.get(left), attrLoc.get(right)));
return binExpr;
return parseRestAdditionExpressions(binExpr);
}
default: