初始化

康凯

2022-05-20 aa4c235a8ca67ea8b731f90c951a465e92c0a865

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var TYPE = require('../../tokenizer').TYPE;
 
var IDENTIFIER = TYPE.Identifier;
var COMMA = TYPE.Comma;
var SEMICOLON = TYPE.Semicolon;
var HYPHENMINUS = TYPE.HyphenMinus;
var EXCLAMATIONMARK = TYPE.ExclamationMark;
 
// var '(' ident (',' <value>? )? ')'
module.exports = function() {
    var children = this.createList();
 
    this.scanner.skipSC();
 
    var identStart = this.scanner.tokenStart;
 
    this.scanner.eat(HYPHENMINUS);
    if (this.scanner.source.charCodeAt(this.scanner.tokenStart) !== HYPHENMINUS) {
        this.scanner.error('HyphenMinus is expected');
    }
    this.scanner.eat(IDENTIFIER);
 
    children.push({
        type: 'Identifier',
        loc: this.getLocation(identStart, this.scanner.tokenStart),
        name: this.scanner.substrToCursor(identStart)
    });
 
    this.scanner.skipSC();
 
    if (this.scanner.tokenType === COMMA) {
        children.push(this.Operator());
        children.push(this.parseCustomProperty
            ? this.Value(null)
            : this.Raw(this.scanner.currentToken, EXCLAMATIONMARK, SEMICOLON, false, false)
        );
    }
 
    return children;
};