| author |  Isaac Freund <mail@isaacfreund.com> 2021-04-10 21:08:40+02:00 |
| committer | Isaac Freund <mail@isaacfreund.com> 2021-04-10 23:10:24+02:00 |
| log | 5b9ea5dd1ec0467f759d51f080fec68b2788d909 |
| tree | 89f6d2787cb1c60a4c823fabb505f3cdbbe195dc |
| parent | ecd38c70cc0ce9173d7cd1d7e4cc146558e4f66a |
zig fmt: fix line comment detection
Previously hasComment() would consider a string literal "//" to be a
line comment. Fix this by only searching the bytes between tokens.2 files changed, 48 insertions(+), 7 deletions(-)
lib
lib/std/zig/parser_test.zig+37
| ... | ... | @@ -4677,6 +4677,43 @@ test "zig fmt: insert trailing comma if there are comments between switch values |
| 4677 | 4677 | ); |
| 4678 | 4678 | } |
| 4679 | 4679 | |
| 4680 | test "zig fmt: insert trailing comma if comments in array init" { | |
| 4681 | try testTransform( | |
| 4682 | \\var a = .{ | |
| 4683 | \\ "foo", // | |
| 4684 | \\ "bar" | |
| 4685 | \\}; | |
| 4686 | \\var a = .{ | |
| 4687 | \\ "foo", | |
| 4688 | \\ "bar" // | |
| 4689 | \\}; | |
| 4690 | \\var a = .{ | |
| 4691 | \\ "foo", | |
| 4692 | \\ "//" | |
| 4693 | \\}; | |
| 4694 | \\var a = .{ | |
| 4695 | \\ "foo", | |
| 4696 | \\ "//" // | |
| 4697 | \\}; | |
| 4698 | \\ | |
| 4699 | , | |
| 4700 | \\var a = .{ | |
| 4701 | \\ "foo", // | |
| 4702 | \\ "bar", | |
| 4703 | \\}; | |
| 4704 | \\var a = .{ | |
| 4705 | \\ "foo", | |
| 4706 | \\ "bar", // | |
| 4707 | \\}; | |
| 4708 | \\var a = .{ "foo", "//" }; | |
| 4709 | \\var a = .{ | |
| 4710 | \\ "foo", | |
| 4711 | \\ "//", // | |
| 4712 | \\}; | |
| 4713 | \\ | |
| 4714 | ); | |
| 4715 | } | |
| 4716 | ||
| 4680 | 4717 | test "zig fmt: make single-line if no trailing comma" { |
| 4681 | 4718 | try testTransform( |
| 4682 | 4719 | \\test "function call no trailing comma" { |
lib/std/zig/render.zig+11-7
| ... | ... | @@ -2240,17 +2240,21 @@ fn renderToken(ais: *Ais, tree: ast.Tree, token_index: ast.TokenIndex, space: Sp |
| 2240 | 2240 | } |
| 2241 | 2241 | } |
| 2242 | 2242 | |
| 2243 | /// Returns true if there exists a comment between the start of token | |
| 2244 | /// `start_token` and the start of token `end_token`. This is used to determine | |
| 2245 | /// if e.g. a fn_proto should be wrapped and have a trailing comma inserted | |
| 2246 | /// even if there is none in the source. | |
| 2243 | /// Returns true if there exists a comment between any of the tokens from | |
| 2244 | /// `start_token` to `end_token`. This is used to determine if e.g. a | |
| 2245 | /// fn_proto should be wrapped and have a trailing comma inserted even if | |
| 2246 | /// there is none in the source. | |
| 2247 | 2247 | fn hasComment(tree: ast.Tree, start_token: ast.TokenIndex, end_token: ast.TokenIndex) bool { |
| 2248 | 2248 | const token_starts = tree.tokens.items(.start); |
| 2249 | 2249 | |
| 2250 | const start = token_starts[start_token]; | |
| 2251 | const end = token_starts[end_token]; | |
| 2250 | var i = start_token; | |
| 2251 | while (i < end_token) : (i += 1) { | |
| 2252 | const start = token_starts[i] + tree.tokenSlice(i).len; | |
| 2253 | const end = token_starts[i + 1]; | |
| 2254 | if (mem.indexOf(u8, tree.source[start..end], "//") != null) return true; | |
| 2255 | } | |
| 2252 | 2256 | |
| 2253 | return mem.indexOf(u8, tree.source[start..end], "//") != null; | |
| 2257 | return false; | |
| 2254 | 2258 | } |
| 2255 | 2259 | |
| 2256 | 2260 | /// Returns true if there exists a multiline string literal between the start |