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Author SHA1 Message Date
Niko Matsakis
4d05b62b99 update release notes 2017-02-11 08:10:37 +01:00
Niko Matsakis
70ed503f98 Merge pull request #182 from Marwes/error_recovery_panic 
fix: Don't accidentally cast a reduce action to usize
 2017-02-07 07:08:18 +01:00
Markus Westerlind
b69e679d5b fix: Don't accidentally cast a reduce action to usize 
This caused panics in certain error recovery scenarios as a reduce action represented by a negative number would get casted to `usize` which then caused an index out of bounds panic.

The added tests were extracted and minimized from [gluon's grammar](abd06a4f6e/parser/src/grammar.lalrpop) with the test case below being a minimal reproduction.

Panicking
```
type Test = a ->
```

Valid expression
```
type Test = a -> a
in 1
```
 2017-01-28 16:22:37 +01:00
Niko Matsakis
333aaef2e8 Merge pull request #178 from Marwes/expected_tokens 
feat: Add the expected successor tokens to UnrecognizedToken errors
 2017-01-06 04:26:14 -05:00
Markus Westerlind
77c82c0cd4 feat: Add the expected successor tokens to UnrecognizedToken errors 
This just adds the terminal strings defined in the grammar which is not the best possible information but it is better than no information.

Partial fix for #58
 2016-12-28 19:31:06 +01:00
Niko Matsakis
5731a3f582 Merge pull request #175 from paupino/feature/fix-readme 
Fixes typo in README.md for Configuration object
 2016-12-04 03:46:10 -08:00
Paul Mason
54bad3c5f7 Fixes typo in README.md for Configuration object 2016-12-03 17:51:09 -08:00
Niko Matsakis
81efcba748 Merge pull request #174 from nikomatsakis/release-0.12.4 
Release 0.12.4
0.12.4 		2016-11-30 02:10:53 -08:00
Niko Matsakis
a3144a1b88 publish 0.12.4 2016-11-29 14:47:11 -05:00
Niko Matsakis
1e9e96be61 update RELEASES.md to talk about 0.12.4 2016-11-29 14:41:27 -05:00
Niko Matsakis
fa1c31eac8 bump version number to 0.12.4 2016-11-29 13:51:41 -05:00
Niko Matsakis
ec63b4e8a7 publish 0.12.3 2016-11-29 13:51:21 -05:00
Niko Matsakis
9c0d597afb update releases to mention 0.12.3 2016-11-29 13:51:21 -05:00
Niko Matsakis
9b4d5d588d update version numbers to 0.12.3 2016-11-29 13:51:21 -05:00
Niko Matsakis
5841facb69 fix parentheses 2016-11-29 13:51:21 -05:00
Niko Matsakis
69acad349d release 0.12.2 2016-11-29 13:51:21 -05:00
Niko Matsakis
49ea2b4795 remove main.rs from lalrpop-snap 
it interferes with publish
 2016-11-29 13:51:21 -05:00
Niko Matsakis
a3745f4878 update version numbers for 0.12.2 2016-11-29 13:51:21 -05:00
Niko Matsakis
6b446e8831 Merge pull request #173 from Marwes/fix_clone 
fix: Actually avoid all clones when not using error recovery
 2016-11-29 10:39:54 -08:00
Markus Westerlind
bf7c7901e9 fix: Actually avoid all clones when not using error recovery 2016-11-29 17:54:37 +01:00
Niko Matsakis
47308d0d9d Merge pull request #170 from Marwes/fix_clone_token 
Only generate code for error recovery if it is used
 2016-11-25 06:38:34 -08:00
Markus Westerlind
7a9b6e7117 Only generate code for error recovery if it is used 
Since error recovery requires cloneable tokens we avoid emitting the error recovery code unless it is actually needed. Note that this change still keeps the error terminal in the generated tables.
 2016-11-23 19:44:51 +01:00
Niko Matsakis
d710c1f3f0 Merge pull request #168 from nikomatsakis/snapshot 
New snapshot
 2016-11-23 01:55:08 -08:00
Niko Matsakis
99962ccb49 create new snapshot 2016-11-23 04:32:17 -05:00
Niko Matsakis
fd88178922 remove profile entries 2016-11-23 04:30:03 -05:00
Niko Matsakis
82cf10d5ba update RELEASES.md with new activity 2016-11-23 04:21:44 -05:00
Niko Matsakis
a73ca78c89 Merge pull request #160 from Marwes/symbol_error 
feat: Implement error recovery
 2016-11-23 01:16:01 -08:00
Markus Westerlind
1fe5cf46c4 Add missing path dependency on the pascal demo 2016-11-22 23:20:04 +01:00
Markus Westerlind
18b179660b Use ! instead of error to indicate error recovery 2016-11-22 23:03:56 +01:00
Markus Westerlind
6bf1c9e940 Store the tokens dropped during error recovery in the produced type 2016-11-22 22:37:19 +01:00
Niko Matsakis
c07833ab31 improve docs and various nits in parse_table.rs 2016-11-22 22:36:10 +01:00
Niko Matsakis
fe854cc7fc update tutorial wording, rm calculator6 2016-11-22 22:36:10 +01:00
Markus Westerlind
352ed58dce Fix nits 2016-11-22 22:36:10 +01:00
Markus Westerlind
0a7f46cfde Don't generate the ERROR table anymore 
The information in the `ERROR` table is now encoded in `ACTION` under the error terminal.
 2016-11-22 22:36:10 +01:00
Markus Westerlind
0811555dd4 Add basic documentation for error recovery 2016-11-22 22:36:10 +01:00
Markus Westerlind
ea31f3cdda Merge the generation of error recovery as much as possible 
The generated code is still duplicated but overall it is a miniscule
amount of code.
 2016-11-22 22:36:10 +01:00
Markus Westerlind
80603e1e28 fix: Perform all reductions before shifting in error recovery 
This fixes a problem in the newly added calculator7 test where error recovery would remove everything before the comma in `22 * 44 + 66, *3` as there would be no shift at that point. By first reducing the first expression the parser ends up in a state which properly has recovery installed and parsing can resume
 2016-11-22 22:36:10 +01:00
Markus Westerlind
5c4c0d0f8a Only generate a parse_table parser when testing error recovery 2016-11-22 22:36:10 +01:00
Markus Westerlind
4400e74cd6 Display a friendly error if using error recovery in a recursive ascent parser 2016-11-22 22:36:10 +01:00
Markus Westerlind
9ceaa09e0f Add comments and fix nits 2016-11-22 22:36:10 +01:00
Markus Westerlind
0000be244f Infer the type of error symbols 2016-11-22 22:36:10 +01:00
Markus Westerlind
6f6db1ec2f Allow underscores to be part of LALRPOP identifiers 2016-11-22 22:36:10 +01:00
Markus Westerlind
1e3a543881 Fix compile error when running cargo test on the main crate 2016-11-22 22:36:10 +01:00
Markus Westerlind
39a033c477 Don't drop the token that caused an error 
If we end up dropping some states in the first part of error recovery we may not need to skip any tokens at all.
 2016-11-22 22:36:10 +01:00
Markus Westerlind
9dd99ce436 Don't enter an infinite loop if no recovery exists at EOF 2016-11-22 22:36:10 +01:00
Markus Westerlind
137e015f43 Add issue_55.rs to .gitignore 2016-11-22 22:36:10 +01:00
Markus Westerlind
99004de261 Only emit an ERRORS table if error recovery is used 2016-11-22 22:36:10 +01:00
Markus Westerlind
e68c2605c8 Revert accidental style change to the grammar 2016-11-22 22:36:10 +01:00
Markus Westerlind
00c78e5e2e Add some comments 2016-11-22 22:36:10 +01:00
Markus Westerlind
9cd4f30319 Make the error available for error recovery actions 2016-11-22 22:36:10 +01:00