// The algorithm used to determine whether a regexp can appear at a // given point in the program is loosely based on sweet.js' approach. // See https://github.com/mozilla/sweet.js/wiki/design import {Parser} from "./state" import {types as tt} from "./tokentype" import {lineBreak} from "./whitespace" export class TokContext { constructor(token, isExpr, preserveSpace, override) { this.token = token this.isExpr = isExpr this.preserveSpace = preserveSpace this.override = override } } export const types = { b_stat: new TokContext("{", false), b_expr: new TokContext("{", true), b_tmpl: new TokContext("${", true), p_stat: new TokContext("(", false), p_expr: new TokContext("(", true), q_tmpl: new TokContext("`", true, true, p => p.readTmplToken()), f_expr: new TokContext("function", true) } const pp = Parser.prototype pp.initialContext = function() { return [types.b_stat] } pp.braceIsBlock = function(prevType) { let parent if (prevType === tt.colon && (parent = this.curContext()).token == "{") return !parent.isExpr if (prevType === tt._return) return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof) return true if (prevType == tt.braceL) return this.curContext() === types.b_stat return !this.exprAllowed } pp.updateContext = function(prevType) { let update, type = this.type if (type.keyword && prevType == tt.dot) this.exprAllowed = false else if (update = type.updateContext) update.call(this, prevType) else this.exprAllowed = type.beforeExpr } // Token-specific context update code tt.parenR.updateContext = tt.braceR.updateContext = function() { if (this.context.length == 1) { this.exprAllowed = true return } let out = this.context.pop() if (out === types.b_stat && this.curContext() === types.f_expr) { this.context.pop() this.exprAllowed = false } else if (out === types.b_tmpl) { this.exprAllowed = true } else { this.exprAllowed = !out.isExpr } } tt.braceL.updateContext = function(prevType) { this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr) this.exprAllowed = true } tt.dollarBraceL.updateContext = function() { this.context.push(types.b_tmpl) this.exprAllowed = true } tt.parenL.updateContext = function(prevType) { let statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while this.context.push(statementParens ? types.p_stat : types.p_expr) this.exprAllowed = true } tt.incDec.updateContext = function() { // tokExprAllowed stays unchanged } tt._function.updateContext = function() { if (this.curContext() !== types.b_stat) this.context.push(types.f_expr) this.exprAllowed = false } tt.backQuote.updateContext = function() { if (this.curContext() === types.q_tmpl) this.context.pop() else this.context.push(types.q_tmpl) this.exprAllowed = false }
# | Change | User | Description | Committed | |
---|---|---|---|---|---|
#1 | 19553 | swellard | Move and rename clients | ||
//guest/perforce_software/helix-web-services/main/source/clients/2016.1.0/javascript/node_modules/acorn/src/tokencontext.js | |||||
#1 | 18810 | tjuricek |
First-pass at JavaScript client SDK. JavaScript requires Node with Gulp to "browserfy" the library. It's the easiest way I found to use the swagger-js project; bundle up a wrapping method. There is no JavaScript reference guide. The swagger-js doesn't really document what they do very well, actually. Overall I'm not particularly impressed by swagger-js, it was hard to even figure out what the right method syntax was. We may want to invest time in doing it better. This required setting CORS response headers, which are currently defaulted to a fairly insecure setting. |