Examples with IParserManager dyvilx.tools.parsing.IParserManager used on opensource projects

Example 1 with IParserManager

use of dyvilx.tools.parsing.IParserManager in project Dyvil by Dyvil.

the class ParameterListParser method parse.

@Override
public void parse(IParserManager pm, IToken token) {
    final int type = token.type();
    switch(this.mode) {
        case DECLARATOR:
            switch(type) {
                case BaseSymbols.SEMICOLON:
                    if (token.isInferred()) {
                        return;
                    }
                    break;
                case DyvilKeywords.LET:
                    this.attributes.addFlag(Modifiers.FINAL);
                // Fallthrough
                case DyvilKeywords.VAR:
                    this.mode = NAME;
                    return;
                case DyvilKeywords.THIS:
                    if (token.next().type() != BaseSymbols.COLON) {
                        pm.report(token, "parameter.identifier");
                        this.mode = SEPARATOR;
                        return;
                    }
                    // this : TYPE
                    this.mode = TYPE_ASCRIPTION;
                    // the colon
                    pm.skip();
                    pm.pushParser(new TypeParser(t -> this.setThisType(t, token, pm)));
                    return;
                case DyvilSymbols.AT:
                    final Annotation annotation = new CodeAnnotation(token.raw());
                    this.attributes.add(annotation);
                    pm.pushParser(new AnnotationParser(annotation));
                    return;
            }
            final Modifier modifier;
            if ((modifier = ModifierParser.parseModifier(token, pm)) != null) {
                this.attributes.add(modifier);
                return;
            }
            if (BaseSymbols.isCloseBracket(type)) {
                pm.popParser(true);
                return;
            }
        // Fallthrough
        case NAME:
            final Name name;
            if (Tokens.isIdentifier(type)) {
                name = token.nameValue();
            } else if (type == BaseSymbols.UNDERSCORE) {
                name = null;
            } else if (Tokens.isKeyword(type)) {
                name = Name.fromRaw(token.stringValue());
            } else {
                if (BaseSymbols.isCloseBracket(type)) {
                    pm.popParser(true);
                }
                if (type == Tokens.EOF) {
                    pm.popParser();
                }
                this.mode = SEPARATOR;
                pm.report(token, "parameter.identifier");
                return;
            }
            this.parameter = this.consumer.createParameter(token.raw(), name, this.type, this.attributes);
            this.mode = INTERNAL_NAME;
            return;
        case INTERNAL_NAME:
            this.mode = VARARGS_AFTER_NAME;
            // overwrite the internal name if necessary
            if (Tokens.isIdentifier(type)) {
                // IDENTIFIER IDENTIFIER : TYPE
                this.parameter.setName(token.nameValue());
                return;
            } else if (type == BaseSymbols.UNDERSCORE) {
                // IDENTIFIER _ : TYPE
                this.parameter.setName(null);
                return;
            }
        // Fallthrough
        case VARARGS_AFTER_NAME:
            if (type == DyvilSymbols.ELLIPSIS) {
                this.flags |= VARARGS;
                this.mode = TYPE_ASCRIPTION;
                return;
            }
        // Fallthrough
        case TYPE_ASCRIPTION:
        case VARARGS_AFTER_POST_TYPE:
            // continue with the remaining cases (DEFAULT_VALUE, PROPERTY, ...).
            if (this.mode == VARARGS_AFTER_POST_TYPE) {
                // case (2)
                if (type == DyvilSymbols.ELLIPSIS) {
                    this.setTypeVarargs();
                    this.mode = DEFAULT_VALUE;
                    return;
                }
            } else /* case (1) */
            if (type == BaseSymbols.COLON) {
                this.mode = VARARGS_AFTER_POST_TYPE;
                final TypeParser parser = new TypeParser(this);
                if (this.hasFlag(LAMBDA_ARROW_END)) {
                    parser.withFlags(TypeParser.IGNORE_LAMBDA);
                }
                pm.pushParser(parser);
                return;
            }
        // Fallthrough
        case DEFAULT_VALUE:
            if (type == BaseSymbols.EQUALS) {
                this.mode = PROPERTY;
                pm.pushParser(new ExpressionParser(this.parameter));
                return;
            }
        // Fallthrough
        case PROPERTY:
            if (type == BaseSymbols.OPEN_CURLY_BRACKET && this.hasFlag(ALLOW_PROPERTIES)) {
                final IProperty property = this.parameter.createProperty();
                pm.pushParser(new PropertyBodyParser(property), true);
                this.mode = SEPARATOR;
                return;
            }
        // Fallthrough
        case SEPARATOR:
            this.mode = DECLARATOR;
            if (this.parameter != null) {
                if (this.hasFlag(VARARGS)) {
                    this.parameter.setVarargs();
                }
                this.parameter.setType(this.type);
                this.consumer.getParameters().add(this.parameter);
            }
            this.reset();
            switch(type) {
                case DyvilSymbols.ARROW_RIGHT:
                case DyvilSymbols.DOUBLE_ARROW_RIGHT:
                    if (!this.hasFlag(LAMBDA_ARROW_END)) {
                        // produce a syntax error
                        break;
                    }
                // Fallthrough
                case BaseSymbols.CLOSE_PARENTHESIS:
                case BaseSymbols.CLOSE_CURLY_BRACKET:
                case BaseSymbols.CLOSE_SQUARE_BRACKET:
                    pm.reparse();
                // Fallthrough
                case Tokens.EOF:
                    pm.popParser();
                    return;
                case BaseSymbols.COMMA:
                case BaseSymbols.SEMICOLON:
                    return;
            }
            pm.report(token, "parameter.separator");
    }
}