context.js
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.types = exports.TokContext = void 0;
var _types = require("./types");
var _whitespace = require("../util/whitespace");
class TokContext {
constructor(token, isExpr, preserveSpace, override) {
this.token = token;
this.isExpr = !!isExpr;
this.preserveSpace = !!preserveSpace;
this.override = override;
}
}
exports.TokContext = TokContext;
const types = {
braceStatement: new TokContext("{", false),
braceExpression: new TokContext("{", true),
templateQuasi: new TokContext("${", false),
parenStatement: new TokContext("(", false),
parenExpression: new TokContext("(", true),
template: new TokContext("`", true, true, p => p.readTmplToken()),
functionExpression: new TokContext("function", true),
functionStatement: new TokContext("function", false)
};
exports.types = types;
_types.types.parenR.updateContext = _types.types.braceR.updateContext = function () {
if (this.state.context.length === 1) {
this.state.exprAllowed = true;
return;
}
let out = this.state.context.pop();
if (out === types.braceStatement && this.curContext().token === "function") {
out = this.state.context.pop();
}
this.state.exprAllowed = !out.isExpr;
};
_types.types.name.updateContext = function (prevType) {
let allowed = false;
if (prevType !== _types.types.dot) {
if (this.state.value === "of" && !this.state.exprAllowed || this.state.value === "yield" && this.scope.inGenerator) {
allowed = true;
}
}
this.state.exprAllowed = allowed;
if (this.state.isIterator) {
this.state.isIterator = false;
}
};
_types.types.braceL.updateContext = function (prevType) {
this.state.context.push(this.braceIsBlock(prevType) ? types.braceStatement : types.braceExpression);
this.state.exprAllowed = true;
};
_types.types.dollarBraceL.updateContext = function () {
this.state.context.push(types.templateQuasi);
this.state.exprAllowed = true;
};
_types.types.parenL.updateContext = function (prevType) {
const statementParens = prevType === _types.types._if || prevType === _types.types._for || prevType === _types.types._with || prevType === _types.types._while;
this.state.context.push(statementParens ? types.parenStatement : types.parenExpression);
this.state.exprAllowed = true;
};
_types.types.incDec.updateContext = function () {};
_types.types._function.updateContext = _types.types._class.updateContext = function (prevType) {
if (prevType.beforeExpr && prevType !== _types.types.semi && prevType !== _types.types._else && !(prevType === _types.types._return && _whitespace.lineBreak.test(this.input.slice(this.state.lastTokEnd, this.state.start))) && !((prevType === _types.types.colon || prevType === _types.types.braceL) && this.curContext() === types.b_stat)) {
this.state.context.push(types.functionExpression);
} else {
this.state.context.push(types.functionStatement);
}
this.state.exprAllowed = false;
};
_types.types.backQuote.updateContext = function () {
if (this.curContext() === types.template) {
this.state.context.pop();
} else {
this.state.context.push(types.template);
}
this.state.exprAllowed = false;
};