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Changed addition operators to right associative

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This commit is contained in:
Gašper Dobrovoljc
2025-06-03 18:41:44 +02:00
parent 1b45d6a0f9
commit 8251a3608c
4 changed files with 12 additions and 9 deletions
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12
src/pins25/phase/SynAn.java
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@@ -540,20 +540,20 @@ public class SynAn implements AutoCloseable {
Token token = lexAn.peekToken();
switch (token.symbol()) {
case ADD: {
// restadd -> ADD multexpr restadd
// restadd -> ADD addexpr
check(Token.Symbol.ADD);
AST.Expr right = parseMultiplicationExpression();
AST.Expr right = parseAdditionExpression();
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 parseRestAdditionExpressions(binExpr);
return binExpr;
}
case SUB: {
// restadd -> SUB multexpr restadd
// restadd -> ADD addexpr
check(Token.Symbol.SUB);
AST.Expr right = parseMultiplicationExpression();
AST.Expr right = parseAdditionExpression();
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 parseRestAdditionExpressions(binExpr);
return binExpr;
}
default: