evaluator.spec.js
15.6 KB
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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
"use strict";
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
var ts = require("typescript");
var evaluator_1 = require("../src/evaluator");
var symbols_1 = require("../src/symbols");
var typescript_mocks_1 = require("./typescript.mocks");
describe('Evaluator', function () {
var documentRegistry = ts.createDocumentRegistry();
var host;
var service;
var program;
var typeChecker;
var symbols;
var evaluator;
beforeEach(function () {
host = new typescript_mocks_1.Host(FILES, [
'expressions.ts', 'consts.ts', 'const_expr.ts', 'forwardRef.ts', 'classes.ts',
'newExpression.ts', 'errors.ts', 'declared.ts'
]);
service = ts.createLanguageService(host, documentRegistry);
program = service.getProgram();
typeChecker = program.getTypeChecker();
symbols = new symbols_1.Symbols(null);
evaluator = new evaluator_1.Evaluator(symbols, new Map());
});
it('should not have typescript errors in test data', function () {
typescript_mocks_1.expectNoDiagnostics(service.getCompilerOptionsDiagnostics());
for (var _i = 0, _a = program.getSourceFiles(); _i < _a.length; _i++) {
var sourceFile = _a[_i];
typescript_mocks_1.expectNoDiagnostics(service.getSyntacticDiagnostics(sourceFile.fileName));
if (sourceFile.fileName != 'errors.ts') {
// Skip errors.ts because we it has intentional semantic errors that we are testing for.
typescript_mocks_1.expectNoDiagnostics(service.getSemanticDiagnostics(sourceFile.fileName));
}
}
});
it('should be able to fold literal expressions', function () {
var consts = program.getSourceFile('consts.ts');
expect(evaluator.isFoldable(typescript_mocks_1.findVar(consts, 'someName').initializer)).toBeTruthy();
expect(evaluator.isFoldable(typescript_mocks_1.findVar(consts, 'someBool').initializer)).toBeTruthy();
expect(evaluator.isFoldable(typescript_mocks_1.findVar(consts, 'one').initializer)).toBeTruthy();
expect(evaluator.isFoldable(typescript_mocks_1.findVar(consts, 'two').initializer)).toBeTruthy();
});
it('should be able to fold expressions with foldable references', function () {
var expressions = program.getSourceFile('expressions.ts');
symbols.define('someName', 'some-name');
symbols.define('someBool', true);
symbols.define('one', 1);
symbols.define('two', 2);
expect(evaluator.isFoldable(typescript_mocks_1.findVar(expressions, 'three').initializer)).toBeTruthy();
expect(evaluator.isFoldable(typescript_mocks_1.findVar(expressions, 'four').initializer)).toBeTruthy();
symbols.define('three', 3);
symbols.define('four', 4);
expect(evaluator.isFoldable(typescript_mocks_1.findVar(expressions, 'obj').initializer)).toBeTruthy();
expect(evaluator.isFoldable(typescript_mocks_1.findVar(expressions, 'arr').initializer)).toBeTruthy();
});
it('should be able to evaluate literal expressions', function () {
var consts = program.getSourceFile('consts.ts');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(consts, 'someName').initializer)).toBe('some-name');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(consts, 'someBool').initializer)).toBe(true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(consts, 'one').initializer)).toBe(1);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(consts, 'two').initializer)).toBe(2);
});
it('should be able to evaluate expressions', function () {
var expressions = program.getSourceFile('expressions.ts');
symbols.define('someName', 'some-name');
symbols.define('someBool', true);
symbols.define('one', 1);
symbols.define('two', 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'three').initializer)).toBe(3);
symbols.define('three', 3);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'four').initializer)).toBe(4);
symbols.define('four', 4);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'obj').initializer))
.toEqual({ one: 1, two: 2, three: 3, four: 4 });
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'arr').initializer)).toEqual([1, 2, 3, 4]);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bTrue').initializer)).toEqual(true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bFalse').initializer)).toEqual(false);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bAnd').initializer)).toEqual(true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bOr').initializer)).toEqual(true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'nDiv').initializer)).toEqual(2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'nMod').initializer)).toEqual(1);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bLOr').initializer)).toEqual(false || true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bLAnd').initializer)).toEqual(true && true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bBOr').initializer)).toEqual(0x11 | 0x22);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bBAnd').initializer)).toEqual(0x11 & 0x03);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bXor').initializer)).toEqual(0x11 ^ 0x21);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bEqual').initializer))
.toEqual(1 == '1');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bNotEqual').initializer))
.toEqual(1 != '1');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bIdentical').initializer))
.toEqual(1 === '1');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bNotIdentical').initializer))
.toEqual(1 !== '1');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bLessThan').initializer)).toEqual(1 < 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bGreaterThan').initializer)).toEqual(1 > 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bLessThanEqual').initializer))
.toEqual(1 <= 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bGreaterThanEqual').initializer))
.toEqual(1 >= 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bShiftLeft').initializer)).toEqual(1 << 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bShiftRight').initializer))
.toEqual(-1 >> 2);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'bShiftRightU').initializer))
.toEqual(-1 >>> 2);
});
it('should report recursive references as symbolic', function () {
var expressions = program.getSourceFile('expressions.ts');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'recursiveA').initializer))
.toEqual({ __symbolic: 'reference', name: 'recursiveB' });
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(expressions, 'recursiveB').initializer))
.toEqual({ __symbolic: 'reference', name: 'recursiveA' });
});
it('should correctly handle special cases for CONST_EXPR', function () {
var const_expr = program.getSourceFile('const_expr.ts');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(const_expr, 'bTrue').initializer)).toEqual(true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(const_expr, 'bFalse').initializer)).toEqual(false);
});
it('should resolve a forwardRef', function () {
var forwardRef = program.getSourceFile('forwardRef.ts');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(forwardRef, 'bTrue').initializer)).toEqual(true);
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(forwardRef, 'bFalse').initializer)).toEqual(false);
});
it('should return new expressions', function () {
symbols.define('Value', { __symbolic: 'reference', module: './classes', name: 'Value' });
evaluator = new evaluator_1.Evaluator(symbols, new Map());
var newExpression = program.getSourceFile('newExpression.ts');
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(newExpression, 'someValue').initializer)).toEqual({
__symbolic: 'new',
expression: { __symbolic: 'reference', name: 'Value', module: './classes' },
arguments: ['name', 12]
});
expect(evaluator.evaluateNode(typescript_mocks_1.findVar(newExpression, 'complex').initializer)).toEqual({
__symbolic: 'new',
expression: { __symbolic: 'reference', name: 'Value', module: './classes' },
arguments: ['name', 12]
});
});
it('should support referene to a declared module type', function () {
var declared = program.getSourceFile('declared.ts');
var aDecl = typescript_mocks_1.findVar(declared, 'a');
expect(evaluator.evaluateNode(aDecl.type)).toEqual({
__symbolic: 'select',
expression: { __symbolic: 'reference', name: 'Foo' },
member: 'A'
});
});
it('should return errors for unsupported expressions', function () {
var errors = program.getSourceFile('errors.ts');
var fDecl = typescript_mocks_1.findVar(errors, 'f');
expect(evaluator.evaluateNode(fDecl.initializer))
.toEqual({ __symbolic: 'error', message: 'Function call not supported', line: 1, character: 12 });
var eDecl = typescript_mocks_1.findVar(errors, 'e');
expect(evaluator.evaluateNode(eDecl.type)).toEqual({
__symbolic: 'error',
message: 'Could not resolve type',
line: 2,
character: 11,
context: { typeName: 'NotFound' }
});
var sDecl = typescript_mocks_1.findVar(errors, 's');
expect(evaluator.evaluateNode(sDecl.initializer)).toEqual({
__symbolic: 'error',
message: 'Name expected',
line: 3,
character: 14,
context: { received: '1' }
});
var tDecl = typescript_mocks_1.findVar(errors, 't');
expect(evaluator.evaluateNode(tDecl.initializer)).toEqual({
__symbolic: 'error',
message: 'Expression form not supported',
line: 4,
character: 12
});
});
it('should be able to fold an array spread', function () {
var expressions = program.getSourceFile('expressions.ts');
symbols.define('arr', [1, 2, 3, 4]);
var arrSpread = typescript_mocks_1.findVar(expressions, 'arrSpread');
expect(evaluator.evaluateNode(arrSpread.initializer)).toEqual([0, 1, 2, 3, 4, 5]);
});
it('should be able to produce a spread expression', function () {
var expressions = program.getSourceFile('expressions.ts');
var arrSpreadRef = typescript_mocks_1.findVar(expressions, 'arrSpreadRef');
expect(evaluator.evaluateNode(arrSpreadRef.initializer)).toEqual([
0, { __symbolic: 'spread', expression: { __symbolic: 'reference', name: 'arrImport' } }, 5
]);
});
it('should be able to handle a new expression with no arguments', function () {
var source = sourceFileOf("\n export var a = new f;\n ");
var expr = typescript_mocks_1.findVar(source, 'a');
expect(evaluator.evaluateNode(expr.initializer))
.toEqual({ __symbolic: 'new', expression: { __symbolic: 'reference', name: 'f' } });
});
});
function sourceFileOf(text) {
return ts.createSourceFile('test.ts', text, ts.ScriptTarget.Latest, true);
}
var FILES = {
'directives.ts': "\n export function Pipe(options: { name?: string, pure?: boolean}) {\n return function(fn: Function) { }\n }\n ",
'classes.ts': "\n export class Value {\n constructor(public name: string, public value: any) {}\n }\n ",
'consts.ts': "\n export var someName = 'some-name';\n export var someBool = true;\n export var one = 1;\n export var two = 2;\n export var arrImport = [1, 2, 3, 4];\n ",
'expressions.ts': "\n import {arrImport} from './consts';\n\n export var someName = 'some-name';\n export var someBool = true;\n export var one = 1;\n export var two = 2;\n\n export var three = one + two;\n export var four = two * two;\n export var obj = { one: one, two: two, three: three, four: four };\n export var arr = [one, two, three, four];\n export var bTrue = someBool;\n export var bFalse = !someBool;\n export var bAnd = someBool && someBool;\n export var bOr = someBool || someBool;\n export var nDiv = four / two;\n export var nMod = (four + one) % two;\n\n export var bLOr = false || true; // true\n export var bLAnd = true && true; // true\n export var bBOr = 0x11 | 0x22; // 0x33\n export var bBAnd = 0x11 & 0x03; // 0x01\n export var bXor = 0x11 ^ 0x21; // 0x20\n export var bEqual = 1 == <any>\"1\"; // true\n export var bNotEqual = 1 != <any>\"1\"; // false\n export var bIdentical = 1 === <any>\"1\"; // false\n export var bNotIdentical = 1 !== <any>\"1\"; // true\n export var bLessThan = 1 < 2; // true\n export var bGreaterThan = 1 > 2; // false\n export var bLessThanEqual = 1 <= 2; // true\n export var bGreaterThanEqual = 1 >= 2; // false\n export var bShiftLeft = 1 << 2; // 0x04\n export var bShiftRight = -1 >> 2; // -1\n export var bShiftRightU = -1 >>> 2; // 0x3fffffff\n\n export var arrSpread = [0, ...arr, 5];\n\n export var arrSpreadRef = [0, ...arrImport, 5];\n\n export var recursiveA = recursiveB;\n export var recursiveB = recursiveA;\n ",
'A.ts': "\n import {Pipe} from './directives';\n\n @Pipe({name: 'A', pure: false})\n export class A {}",
'B.ts': "\n import {Pipe} from './directives';\n import {someName, someBool} from './consts';\n\n @Pipe({name: someName, pure: someBool})\n export class B {}",
'const_expr.ts': "\n function CONST_EXPR(value: any) { return value; }\n export var bTrue = CONST_EXPR(true);\n export var bFalse = CONST_EXPR(false);\n ",
'forwardRef.ts': "\n function forwardRef(value: any) { return value; }\n export var bTrue = forwardRef(() => true);\n export var bFalse = forwardRef(() => false);\n ",
'newExpression.ts': "\n import {Value} from './classes';\n function CONST_EXPR(value: any) { return value; }\n function forwardRef(value: any) { return value; }\n export const someValue = new Value(\"name\", 12);\n export const complex = CONST_EXPR(new Value(\"name\", forwardRef(() => 12)));\n ",
'errors.ts': "\n let f = () => 1;\n let e: NotFound;\n let s = { 1: 1, 2: 2 };\n let t = typeof 12;\n ",
'declared.ts': "\n declare namespace Foo {\n type A = string;\n }\n\n let a: Foo.A = 'some value';\n "
};
//# sourceMappingURL=evaluator.spec.js.map