Examples with CodeLexerGrammar org.finos.legend.engine.language.pure.grammar.from.antlr4.CodeLexerGrammar used on opensource projects

Example 1 with CodeLexerGrammar

use of org.finos.legend.engine.language.pure.grammar.from.antlr4.CodeLexerGrammar in project legend-engine by finos.

the class PureGrammarParser method parse.

private PureModelContextData parse(String code, DEPRECATED_PureGrammarParserLibrary parserLibrary, boolean returnSourceInfo) {
    String fullCode = DEFAULT_SECTION_BEGIN + code;
    PureGrammarParserContext parserContext = new PureGrammarParserContext(this.extensions);
    ParseTreeWalkerSourceInformation walkerSourceInformation = ParseTreeWalkerSourceInformation.DEFAULT_WALKER_SOURCE_INFORMATION(returnSourceInfo);
    // init the parser
    ParserErrorListener errorListener = new ParserErrorListener(walkerSourceInformation);
    CodeLexerGrammar lexer = new CodeLexerGrammar(CharStreams.fromString(fullCode));
    lexer.removeErrorListeners();
    lexer.addErrorListener(errorListener);
    CodeParserGrammar parser = new CodeParserGrammar(new CommonTokenStream(lexer));
    parser.removeErrorListeners();
    parser.addErrorListener(errorListener);
    // create the PureModelContextData builder
    PureModelContextData.Builder builder = new PureModelContextData.Builder();
    // create the section index
    SectionIndex sectionIndex = new SectionIndex();
    // NOTE: we intentionally set section index name and package like this since we don't want to expose this feature yet to end user
    // in the consumer, we should ensure this does not leak and gets persisted to SDLC or Services per se
    sectionIndex.name = "SectionIndex";
    sectionIndex._package = "__internal__";
    sectionIndex.sections = ListIterate.collect(parser.definition().section(), sectionCtx -> this.visitSection(sectionCtx, parserLibrary, walkerSourceInformation, parserContext, builder::addElement, returnSourceInfo));
    return builder.withElement(sectionIndex).build();
}