108 lines
3.1 KiB
JavaScript
108 lines
3.1 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const UnsupportedFeatureWarning = require("../UnsupportedFeatureWarning");
|
|
const ConstDependency = require("../dependencies/ConstDependency");
|
|
const BasicEvaluatedExpression = require("./BasicEvaluatedExpression");
|
|
|
|
/** @typedef {import("estree").Expression} ExpressionNode */
|
|
/** @typedef {import("estree").Node} Node */
|
|
/** @typedef {import("./JavascriptParser")} JavascriptParser */
|
|
|
|
/**
|
|
* @param {JavascriptParser} parser the parser
|
|
* @param {string} value the const value
|
|
* @param {string[]=} runtimeRequirements runtime requirements
|
|
* @returns {function(ExpressionNode): true} plugin function
|
|
*/
|
|
exports.toConstantDependency = (parser, value, runtimeRequirements) => {
|
|
return function constDependency(expr) {
|
|
const dep = new ConstDependency(value, expr.range, runtimeRequirements);
|
|
dep.loc = expr.loc;
|
|
parser.state.module.addPresentationalDependency(dep);
|
|
return true;
|
|
};
|
|
};
|
|
|
|
/**
|
|
* @param {string} value the string value
|
|
* @returns {function(ExpressionNode): BasicEvaluatedExpression} plugin function
|
|
*/
|
|
exports.evaluateToString = value => {
|
|
return function stringExpression(expr) {
|
|
return new BasicEvaluatedExpression().setString(value).setRange(expr.range);
|
|
};
|
|
};
|
|
|
|
/**
|
|
* @param {number} value the number value
|
|
* @returns {function(ExpressionNode): BasicEvaluatedExpression} plugin function
|
|
*/
|
|
exports.evaluateToNumber = value => {
|
|
return function stringExpression(expr) {
|
|
return new BasicEvaluatedExpression().setNumber(value).setRange(expr.range);
|
|
};
|
|
};
|
|
|
|
/**
|
|
* @param {boolean} value the boolean value
|
|
* @returns {function(ExpressionNode): BasicEvaluatedExpression} plugin function
|
|
*/
|
|
exports.evaluateToBoolean = value => {
|
|
return function booleanExpression(expr) {
|
|
return new BasicEvaluatedExpression()
|
|
.setBoolean(value)
|
|
.setRange(expr.range);
|
|
};
|
|
};
|
|
|
|
/**
|
|
* @param {string} identifier identifier
|
|
* @param {string} rootInfo rootInfo
|
|
* @param {function(): string[]} getMembers getMembers
|
|
* @param {boolean|null=} truthy is truthy, null if nullish
|
|
* @returns {function(ExpressionNode): BasicEvaluatedExpression} callback
|
|
*/
|
|
exports.evaluateToIdentifier = (identifier, rootInfo, getMembers, truthy) => {
|
|
return function identifierExpression(expr) {
|
|
let evaluatedExpression = new BasicEvaluatedExpression()
|
|
.setIdentifier(identifier, rootInfo, getMembers)
|
|
.setSideEffects(false)
|
|
.setRange(expr.range);
|
|
switch (truthy) {
|
|
case true:
|
|
evaluatedExpression.setTruthy();
|
|
break;
|
|
case null:
|
|
evaluatedExpression.setNullish(true);
|
|
break;
|
|
case false:
|
|
evaluatedExpression.setFalsy();
|
|
break;
|
|
}
|
|
|
|
return evaluatedExpression;
|
|
};
|
|
};
|
|
|
|
exports.expressionIsUnsupported = (parser, message) => {
|
|
return function unsupportedExpression(expr) {
|
|
const dep = new ConstDependency("(void 0)", expr.range, null);
|
|
dep.loc = expr.loc;
|
|
parser.state.module.addPresentationalDependency(dep);
|
|
if (!parser.state.module) return;
|
|
parser.state.module.addWarning(
|
|
new UnsupportedFeatureWarning(message, expr.loc)
|
|
);
|
|
return true;
|
|
};
|
|
};
|
|
|
|
exports.skipTraversal = () => true;
|
|
|
|
exports.approve = () => true;
|