Commit message (Collapse) | Author | Age | Files | Lines | |
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* | renames | Aleksey Kladov | 2018-09-15 | 3 | -47/+49 |
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* | use salsa for new module map | Aleksey Kladov | 2018-09-15 | 8 | -395/+318 |
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* | eager invalidation | Aleksey Kladov | 2018-09-15 | 2 | -12/+76 |
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* | be generic over data | Aleksey Kladov | 2018-09-15 | 2 | -55/+61 |
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* | generic salsa algo | Aleksey Kladov | 2018-09-15 | 3 | -0/+399 |
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* | store params in the graph | Aleksey Kladov | 2018-09-15 | 1 | -5/+7 |
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* | any-cache | Aleksey Kladov | 2018-09-15 | 2 | -21/+18 |
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* | fix dep tracking | Aleksey Kladov | 2018-09-15 | 2 | -31/+18 |
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* | add deps tracking | Aleksey Kladov | 2018-09-15 | 3 | -47/+148 |
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* | Add simplisitc global modification caching | Aleksey Kladov | 2018-09-15 | 3 | -31/+111 |
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* | initial query tracing | Aleksey Kladov | 2018-09-15 | 2 | -13/+55 |
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* | start query-based modules | Aleksey Kladov | 2018-09-15 | 7 | -41/+361 |
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* | adjust trailing newline | darksv | 2018-09-14 | 2 | -2/+4 |
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* | add missing files with inline tests | darksv | 2018-09-14 | 2 | -0/+13 |
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* | Support for unions | darksv | 2018-09-14 | 4 | -7/+161 |
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* | don't get stuck in slice patterns | Aleksey Kladov | 2018-09-12 | 2 | -21/+122 |
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* | correctly setup path-map for fs-changes | Aleksey Kladov | 2018-09-12 | 1 | -23/+24 |
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* | Merge #68 | bors[bot] | 2018-09-11 | 9 | -28/+98 |
|\ | | | | | | | | | | | | | | | 68: Implement incremental reparsing for remaining braced blocks r=matklad a=darksv Fixes #66 Co-authored-by: darksv <[email protected]> | ||||
| * | Do not reparse token tree when it is not delimited by braces | darksv | 2018-09-10 | 2 | -1/+6 |
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| * | Implement reparsing for remaining blocks | darksv | 2018-09-10 | 9 | -28/+93 |
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* | | store file rsovler | Aleksey Kladov | 2018-09-10 | 7 | -116/+146 |
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* | Merge #65 | bors[bot] | 2018-09-08 | 1 | -1/+1 |
|\ | | | | | | | | | | | | | | | 65: simplify r=matklad a=matklad Co-authored-by: Aleksey Kladov <[email protected]> | ||||
| * | simplify | Aleksey Kladov | 2018-09-08 | 1 | -1/+1 |
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* | | Fix yet another parser infinite loop | Aleksey Kladov | 2018-09-08 | 2 | -8/+10 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit is an example of fixing a common parser error: infinite loop due to error recovery. This error typically happens when we parse a list of items and fail to parse a specific item at the current position. One choices is to skip a token and try to parse a list item at the next position. This is a good, but not universal, default. When parsing a list of arguments in a function call, you, for example, don't want to skip over `fn`, because it's most likely that it is a function declaration, and not a mistyped arg: ``` fn foo() { quux(1, 2 fn bar() { } ``` Another choice is to bail out of the loop immediately, but it isn't perfect either: sometimes skipping over garbage helps: ``` quux(1, foo:, 92) // should skip over `:`, b/c that's part of `foo::bar` ``` In general, parser tries to balance these two cases, though we don't have a definitive strategy yet. However, if the parser accidentally neither skips over a token, nor breaks out of the loop, then it becomes stuck in the loop infinitely (there's an internal counter to self-check this situation and panic though), and that's exactly what is demonstrated by the test. To fix such situation, first of all, add the test case to tests/data/parser/{err,fuzz-failures}. Then, run ``` RUST_BACKTRACE=short cargo test --package libsyntax2 ```` to verify that parser indeed panics, and to get an idea what grammar production is the culprit (look for `_list` functions!). In this case, I see ``` 10: libsyntax2::grammar::expressions::atom::match_arm_list at crates/libsyntax2/src/grammar/expressions/atom.rs:309 ``` and that's look like it might be a culprit. I verify it by adding `eprintln!("loopy {:?}", p.current());` and indeed I see that this is printed repeatedly. Diagnosing this a bit shows that the problem is that `pattern::pattern` function does not consume anything if the next token is `let`. That is a good default to make cases like ``` let let foo = 92; ``` where the user hasn't typed the pattern yet, to parse in a reasonable they correctly. For match arms, pretty much the single thing we expect is a pattern, so, for a fix, I introduce a special variant of pattern that does not do recovery. | ||||
* | | Add fuzz failures dir | Aleksey Kladov | 2018-09-08 | 2 | -4/+213 |
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* | move fuzz-invariants to the library | Aleksey Kladov | 2018-09-08 | 3 | -41/+44 |
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* | Add trivial fuzzer for parser | Pascal Hertleif | 2018-09-08 | 3 | -0/+38 |
| | | | | | | | | | | | | | As described in #61, fuzz testing some parts of this would be ~~fun~~ helpful. So, I started with the most trivial fuzzer I could think of: Put random stuff into File::parse and see what happens. To speed things up, I also did cp src/**/*.rs fuzz/corpus/parser/ in the `crates/libsyntax2/` directory (running the fuzzer once will generate the necessary directories). | ||||
* | Don't overflow when limiting symbol search | Aleksey Kladov | 2018-09-08 | 1 | -3/+2 |
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* | Some abstraction around workers | Aleksey Kladov | 2018-09-08 | 5 | -74/+92 |
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* | Deal with deadlocks in a more principaled way | Aleksey Kladov | 2018-09-08 | 6 | -27/+39 |
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* | fix deadlock | Aleksey Kladov | 2018-09-08 | 1 | -14/+18 |
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* | Fix block structure in enums | Aleksey Kladov | 2018-09-08 | 5 | -25/+274 |
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* | simplify | Aleksey Kladov | 2018-09-08 | 5 | -9/+14 |
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* | Don't get stuck in tuple exprs | Aleksey Kladov | 2018-09-08 | 4 | -96/+484 |
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* | Don't get stuck in macros | Aleksey Kladov | 2018-09-08 | 3 | -1/+54 |
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* | fix stuck parser | Aleksey Kladov | 2018-09-08 | 7 | -2/+719 |
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* | fix labled expressions | Aleksey Kladov | 2018-09-08 | 9 | -14/+313 |
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* | nested mod completion | Aleksey Kladov | 2018-09-07 | 5 | -46/+68 |
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* | Remove dyn dispatch | Aleksey Kladov | 2018-09-07 | 3 | -21/+65 |
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* | Separete API from IMPL | Aleksey Kladov | 2018-09-07 | 1 | -14/+14 |
| | | | | | | Looks like there's a rule of thumb: don't call API functions from an implementation! In this case, following this rule of thumb saves us an Arc-bump! | ||||
* | Moved TokenSet into it's own file. | Zac Winter | 2018-09-06 | 4 | -37/+41 |
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* | better introduce | Aleksey Kladov | 2018-09-05 | 1 | -8/+26 |
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* | introduce variable | Aleksey Kladov | 2018-09-05 | 6 | -10/+72 |
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* | use correct workdir for the server | Aleksey Kladov | 2018-09-05 | 2 | -10/+19 |
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* | even less hacks | Aleksey Kladov | 2018-09-05 | 1 | -18/+16 |
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* | less hacky paths | Aleksey Kladov | 2018-09-05 | 1 | -12/+9 |
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* | Merge #56 | bors[bot] | 2018-09-05 | 5 | -45/+137 |
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 56: Unify lookahead naming between parser and lexer. r=matklad a=zachlute Resolves Issue #26. I wanted to play around with libsyntax2, and fixing a random issue seemed like a good way to mess around in the code. This PR mostly does what's suggested in that issue. I elected to go with `at` and `at_str` instead of trying to do any fancy overloading shenanigans, because...uh, well, frankly I don't really know how to do any fancy overloading shenanigans. The only really questionable bit is `nth_is_p`, which could also have potentially been named `nth_at_p`, but `is` seemed more apropos. I also added simple tests for `Ptr` so I could be less terrified I broke something. Comments and criticisms very welcome. I'm still pretty new to Rust. Co-authored-by: Zach Lute <[email protected]> | ||||
| * | Added tests for Ptr. | Zach Lute | 2018-09-05 | 1 | -0/+78 |
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| * | Updated Ptr methods to better match Parser method names. | Zach Lute | 2018-09-05 | 5 | -45/+59 |
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* | | fix tests on windows | Aleksey Kladov | 2018-09-05 | 1 | -4/+11 |
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