[Lua] Lua syntax parsing process is very slow

[Dongyang0810]

sStream := antlr.NewInputStream(sInput)
aLexer := NewLuaLexer(sStream)
aTokens := antlr.NewCommonTokenStream(aLexer, antlr.TokenDefaultChannel)
aParser := NewLuaParser(aTokens)
aTree := aParser.Chunk()

sInputis the source code character stream, which has 2000 lines. The execution process of aParser.Chunk() is very slow. Is there any way to speed up the execution of this function?

[kaby76]

• I cannot tell what target language you are using (Antlr4ng, Cpp, CSharp, Dart, Go, Java, JavaScript, PHP, Python3, Swift, TypeScript). (Likely Go, but I need confirmation.)
• You don't provide any input file. What 2000-line file?

When posting an Issue, please provide a minimal reproducible example

Of the examples in the grammar for testing, none of these show any ambiguity, which is usually the first thing to look for. But, I can't tell without your input test.