9b46553475829800fb88d12088e53491c8d9b184 - groovy

commit	9b46553475829800fb88d12088e53491c8d9b184	[log] [tgz]
author	Daniel Sun <sunlan@apache.org>	Thu Jun 25 16:56:07 2020 +0800
committer	Daniel Sun <sunlan@apache.org>	Thu Jun 25 16:56:32 2020 +0800
tree	ae405dd113d29d5c55dd617e131507fd6f4f6d29
parent	301a6eae56d5ab095670397914c56b3553229ae8 [diff]

GROOVY-9588: groovyCompile 6x slower in 3.0.4 than 2.5.6

Antlr4 can not report missing token smartly as antlr2 does, so it have to use error alternatives, but which may impact the parsing performance a lot if the error alternative matches nothing.

src/antlr/GroovyParser.g4[diff]
src/test/gls/generics/GenericsUsageTest.groovy[diff]
subprojects/parser-antlr4/src/main/java/org/apache/groovy/parser/antlr4/PositionInfo.java[diff]
subprojects/parser-antlr4/src/main/java/org/apache/groovy/parser/antlr4/SyntaxErrorReportable.java[diff]
subprojects/parser-antlr4/src/main/java/org/apache/groovy/parser/antlr4/util/PositionConfigureUtils.java[diff]
subprojects/parser-antlr4/src/test/groovy/org/apache/groovy/parser/antlr4/SyntaxErrorTest.groovy[diff]

6 files changed

tree: ae405dd113d29d5c55dd617e131507fd6f4f6d29