[79a0317] | 1 | /*
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| 2 | MIT License http://www.opensource.org/licenses/mit-license.php
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| 3 | Author Tobias Koppers @sokra
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| 4 | */
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| 5 |
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| 6 | "use strict";
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| 7 |
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| 8 | const UnsupportedFeatureWarning = require("../UnsupportedFeatureWarning");
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| 9 | const ConstDependency = require("../dependencies/ConstDependency");
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| 10 | const BasicEvaluatedExpression = require("./BasicEvaluatedExpression");
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| 11 |
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| 12 | /** @typedef {import("estree").Expression} Expression */
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| 13 | /** @typedef {import("estree").Node} Node */
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| 14 | /** @typedef {import("estree").SourceLocation} SourceLocation */
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| 15 | /** @typedef {import("./JavascriptParser")} JavascriptParser */
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| 16 | /** @typedef {import("./JavascriptParser").Range} Range */
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| 17 |
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| 18 | /**
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| 19 | * @param {JavascriptParser} parser the parser
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| 20 | * @param {string} value the const value
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| 21 | * @param {(string[] | null)=} runtimeRequirements runtime requirements
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| 22 | * @returns {function(Expression): true} plugin function
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| 23 | */
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| 24 | module.exports.toConstantDependency = (parser, value, runtimeRequirements) =>
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| 25 | function constDependency(expr) {
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| 26 | const dep = new ConstDependency(
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| 27 | value,
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| 28 | /** @type {Range} */ (expr.range),
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| 29 | runtimeRequirements
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| 30 | );
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| 31 | dep.loc = /** @type {SourceLocation} */ (expr.loc);
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| 32 | parser.state.module.addPresentationalDependency(dep);
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| 33 | return true;
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| 34 | };
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| 35 |
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| 36 | /**
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| 37 | * @param {string} value the string value
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| 38 | * @returns {function(Expression): BasicEvaluatedExpression} plugin function
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| 39 | */
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| 40 | module.exports.evaluateToString = value =>
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| 41 | function stringExpression(expr) {
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| 42 | return new BasicEvaluatedExpression()
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| 43 | .setString(value)
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| 44 | .setRange(/** @type {Range} */ (expr.range));
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| 45 | };
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| 46 |
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| 47 | /**
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| 48 | * @param {number} value the number value
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| 49 | * @returns {function(Expression): BasicEvaluatedExpression} plugin function
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| 50 | */
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| 51 | module.exports.evaluateToNumber = value =>
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| 52 | function stringExpression(expr) {
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| 53 | return new BasicEvaluatedExpression()
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| 54 | .setNumber(value)
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| 55 | .setRange(/** @type {Range} */ (expr.range));
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| 56 | };
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| 57 |
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| 58 | /**
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| 59 | * @param {boolean} value the boolean value
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| 60 | * @returns {function(Expression): BasicEvaluatedExpression} plugin function
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| 61 | */
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| 62 | module.exports.evaluateToBoolean = value =>
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| 63 | function booleanExpression(expr) {
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| 64 | return new BasicEvaluatedExpression()
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| 65 | .setBoolean(value)
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| 66 | .setRange(/** @type {Range} */ (expr.range));
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| 67 | };
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| 68 |
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| 69 | /**
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| 70 | * @param {string} identifier identifier
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| 71 | * @param {string} rootInfo rootInfo
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| 72 | * @param {function(): string[]} getMembers getMembers
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| 73 | * @param {boolean|null=} truthy is truthy, null if nullish
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| 74 | * @returns {function(Expression): BasicEvaluatedExpression} callback
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| 75 | */
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| 76 | module.exports.evaluateToIdentifier = (
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| 77 | identifier,
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| 78 | rootInfo,
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| 79 | getMembers,
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| 80 | truthy
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| 81 | ) =>
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| 82 | function identifierExpression(expr) {
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| 83 | const evaluatedExpression = new BasicEvaluatedExpression()
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| 84 | .setIdentifier(identifier, rootInfo, getMembers)
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| 85 | .setSideEffects(false)
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| 86 | .setRange(/** @type {Range} */ (expr.range));
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| 87 | switch (truthy) {
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| 88 | case true:
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| 89 | evaluatedExpression.setTruthy();
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| 90 | break;
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| 91 | case null:
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| 92 | evaluatedExpression.setNullish(true);
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| 93 | break;
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| 94 | case false:
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| 95 | evaluatedExpression.setFalsy();
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| 96 | break;
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| 97 | }
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| 98 |
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| 99 | return evaluatedExpression;
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| 100 | };
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| 101 |
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| 102 | /**
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| 103 | * @param {JavascriptParser} parser the parser
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| 104 | * @param {string} message the message
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| 105 | * @returns {function(Expression): boolean | undefined} callback to handle unsupported expression
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| 106 | */
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| 107 | module.exports.expressionIsUnsupported = (parser, message) =>
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| 108 | function unsupportedExpression(expr) {
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| 109 | const dep = new ConstDependency(
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| 110 | "(void 0)",
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| 111 | /** @type {Range} */ (expr.range),
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| 112 | null
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| 113 | );
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| 114 | dep.loc = /** @type {SourceLocation} */ (expr.loc);
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| 115 | parser.state.module.addPresentationalDependency(dep);
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| 116 | if (!parser.state.module) return;
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| 117 | parser.state.module.addWarning(
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| 118 | new UnsupportedFeatureWarning(
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| 119 | message,
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| 120 | /** @type {SourceLocation} */ (expr.loc)
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| 121 | )
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| 122 | );
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| 123 | return true;
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| 124 | };
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| 125 |
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| 126 | module.exports.skipTraversal = () => true;
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| 127 |
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| 128 | module.exports.approve = () => true;
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