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fix scanner peek/peekNext

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This commit is contained in:
Luna 2019-06-04 17:28:48 -03:00
parent 765cef87db
commit 1e47b29685
1 changed files with 3 additions and 2 deletions
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5
src/scanner.zig
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@ -148,12 +148,13 @@ pub const Scanner = struct {
fn peek(self: *Scanner) u8 { fn peek(self: *Scanner) u8 {
if (self.isAtEnd()) return 0; if (self.isAtEnd()) return 0;
return self.source[self.current]; if (self.current == 0) return 0;
return self.source[self.current - 1];
} }
fn peekNext(self: *Scanner) u8 { fn peekNext(self: *Scanner) u8 {
if (self.current + 1 >= self.source.len) return 0; if (self.current + 1 >= self.source.len) return 0;
return self.source[self.current + 1]; return self.source[self.current];
} }
fn skipWhitespace(self: *Scanner) void { fn skipWhitespace(self: *Scanner) void {