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Add incremental parsing support #2527

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Add incremental parsing support #2527

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363a23d
Basic incremental parser working
dberlin Apr 7, 2019
691533a
Fix changed rule detection during IncrementalParserData walk
dberlin Apr 7, 2019
aa47883
Don't create ranges where the token index offset is 0
dberlin Apr 23, 2019
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1 change: 1 addition & 0 deletions contributors.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -215,3 +215,4 @@ YYYY/MM/DD, github id, Full name, email
2019/02/06, ralucado, Cristina Raluca Vijulie, ralucris.v[at]gmail[dot]com
2019/03/13, base698, Justin Thomas, [email protected]
2019/03/18, carlodri, Carlo Dri, [email protected]
2019/04/06, dberlin, Daniel Berlin, [email protected]
338 changes: 338 additions & 0 deletions runtime-testsuite/test/org/antlr/v4/test/runtime/java/api/TestIncremental.java
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12 changes: 12 additions & 0 deletions runtime-testsuite/test/org/antlr/v4/test/runtime/java/api/TestIncrementalBasic.g4
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@@ -0,0 +1,12 @@
grammar TestIncrementalBasic;
options {
incremental = true;
}
program: (identifier | digits)+;
identifier: IDENT;
digits: DIGITS;
// We deliberately put these on a hidden channel rather than skip - it helps
// make the cases weirder by making the parser's token indexes non-contiguous.
WS: [ \t\r\n\u000C]+ -> channel(HIDDEN);
IDENT: [A-Za-z]+;
DIGITS: [0-9]+;
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