1 Commits

Author SHA1 Message Date
Gašper Dobrovoljc
de2522c28c Added __LINE__ symbol 2025-06-03 18:07:27 +02:00
5 changed files with 25 additions and 11 deletions

View File

@@ -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

View File

@@ -1,3 +1,4 @@
fun putint(n)
fun main() =
3 - 2 - 1
putint(__LINE__)

View File

@@ -148,7 +148,11 @@ public record Token(Report.Location location, Symbol symbol, String lexeme) impl
/**
* Simbol {@code )}.
*/
RPAREN;
RPAREN,
/**
* Simbol {@code __LINE__}.
*/
LINE
}
@Override

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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 "__LINE__" -> Token.Symbol.LINE;
default -> null;
};
}
@@ -451,6 +452,15 @@ public class LexAn implements AutoCloseable {
symbol = Token.Symbol.IDENTIFIER;
}
if (symbol == Token.Symbol.LINE) {
buffToken = new Token(
new Report.Location(startLocation, endLocation),
Token.Symbol.INTCONST,
Integer.toString(startLocation.begLine())
);
return;
}
buffToken = new Token(
new Report.Location(startLocation, endLocation),
symbol,

View File

@@ -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: