@stackpress/idea-parser/esm/trees/EnumTree.js

Parses ideas to AST and readable JSON.

import { scalar, scan } from '../definitions.js';
import AbstractTree from './AbstractTree.js';
export default class EnumTree extends AbstractTree {
    static definitions(lexer) {
        super.definitions(lexer);
        lexer.define('EnumWord', (code, index) => scan('_EnumWord', /^enum/, code, index));
        return lexer;
    }
    static parse(code, start = 0) {
        return new this().parse(code, start);
    }
    parse(code, start = 0) {
        this._lexer.load(code, start);
        return this.enum();
    }
    enum() {
        const type = this._lexer.expect('EnumWord');
        this._lexer.expect('whitespace');
        const id = this._lexer.expect('CapitalIdentifier');
        this._lexer.expect('whitespace');
        this._lexer.expect('{');
        this.noncode();
        const props = [];
        this.dotry(() => {
            props.push(this.property());
        });
        this._lexer.expect('}');
        return {
            type: 'VariableDeclaration',
            kind: 'enum',
            start: type.start,
            end: this._lexer.index,
            declarations: [
                {
                    type: 'VariableDeclarator',
                    start: id.start,
                    end: this._lexer.index,
                    id,
                    init: {
                        type: 'ObjectExpression',
                        start: type.start,
                        end: this._lexer.index,
                        properties: props
                    }
                }
            ]
        };
    }
    property() {
        const key = this._lexer.expect('UpperIdentifier');
        this._lexer.expect('whitespace');
        const value = this._lexer.expect(scalar);
        this._lexer.expect('whitespace');
        this.noncode();
        return {
            type: 'Property',
            kind: 'init',
            start: key.start,
            end: value.end,
            method: false,
            shorthand: false,
            computed: false,
            key,
            value
        };
    }
}
;