forked from dsherret/ts-morph
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ExternalModuleReference.ts
51 lines (46 loc) · 1.73 KB
/
ExternalModuleReference.ts
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
import * as errors from "../../../errors";
import { ts } from "../../../typescript";
import { ModuleUtils, TypeGuards } from "../../../utils";
import { Node } from "../common";
import { Expression } from "../expression";
export class ExternalModuleReference extends Node<ts.ExternalModuleReference> {
/**
* Gets the expression or undefined of the yield expression.
*/
getExpression(): Expression | undefined {
return this._getNodeFromCompilerNodeIfExists(this.compilerNode.expression);
}
/**
* Gets the expression of the yield expression or throws if it does not exist.
*/
getExpressionOrThrow() {
return errors.throwIfNullOrUndefined(this.getExpression(), "Expected to find an expression.");
}
/**
* Gets the source file referenced or throws if it can't find it.
*/
getReferencedSourceFileOrThrow() {
return errors.throwIfNullOrUndefined(this.getReferencedSourceFile(), "Expected to find the referenced source file.");
}
/**
* Gets if the external module reference is relative.
*/
isRelative() {
const expression = this.getExpression();
if (expression == null || !TypeGuards.isStringLiteral(expression))
return false;
return ModuleUtils.isModuleSpecifierRelative(expression.getLiteralText());
}
/**
* Gets the source file referenced or returns undefined if it can't find it.
*/
getReferencedSourceFile() {
const expression = this.getExpression();
if (expression == null)
return undefined;
const symbol = expression.getSymbol();
if (symbol == null)
return undefined;
return ModuleUtils.getReferencedSourceFileFromSymbol(symbol);
}
}