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