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parser: don't skip tokens on groupings

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Luna 2019-08-24 16:51:37 -03:00
parent 830693d16d
commit 1651a99faf
1 changed files with 8 additions and 2 deletions
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10
src/parser.zig
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@ -91,10 +91,12 @@ pub const Parser = struct {
}
fn consumeSingle(self: *Parser, ttype: TokenType) !Token {
std.debug.warn("consume {}..?", ttype);
if (self.check(ttype)) {
var cur = self.peek();
_ = try self.nextToken();
std.debug.warn("consumed {}, now has {}\n", ttype, self.peek());
std.debug.warn(" now has {}\n", self.peek());
return cur;
}
@ -379,6 +381,7 @@ pub const Parser = struct {
_ = try self.consumeSingle(.LeftBrace);
while (self.peek().ttype != .RightBrace) {
std.debug.warn("get smt with cur {}\n", self.peek().ttype);
var node = try self.parseStmt();
ast.printNode(node, 0);
try stmts.append(node.Stmt);
@ -509,7 +512,10 @@ pub const Parser = struct {
_ = try self.nextToken();
var expr = (try self.parseExpr()).Expr;
_ = try self.consume(.RightParen, "Expected ')' after expression");
break :blk try self.mkGrouping(expr);
// for groupings, we don't want to skip tokens as we already
// consumed RightParen.
return try self.mkGrouping(expr);
},
else => blk: {