ts-simple-ast
Version:
TypeScript compiler wrapper for AST navigation and code generation.
64 lines (62 loc) • 2.39 kB
JavaScript
;
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
Object.defineProperty(exports, "__esModule", { value: true });
const ts = require("typescript");
const utils_1 = require("./../../../utils");
const TextSpan_1 = require("./TextSpan");
/**
* Document span.
*/
class DocumentSpan {
/**
* @internal
*/
constructor(global, compilerObject) {
this.global = global;
this._compilerObject = compilerObject;
// get the parent most, non-syntax tree, non-source file at the given position
// todo: could make this faster by only going down the tree instead of going down then up
let node = this.getSourceFile().getDescendantAtPos(this.getTextSpan().getStart());
let nodeParent = node.getParent();
while (nodeParent != null && nodeParent.getStart() === node.getStart() && nodeParent.getKind() !== ts.SyntaxKind.SourceFile) {
node = nodeParent;
nodeParent = node.getParent();
}
// store this node so that it's start doesn't go out of date because of manipulation (though the text span may)
this.node = node;
}
/**
* Gets the compiler object.
*/
get compilerObject() {
return this._compilerObject;
}
/**
* Gets the source file this reference is in.
*/
getSourceFile() {
return this.global.compilerFactory.getSourceFileFromFilePath(this.compilerObject.fileName);
}
/**
* Gets the text span.
*/
getTextSpan() {
return new TextSpan_1.TextSpan(this.compilerObject.textSpan);
}
/**
* Gets the node at the start of the text span.
*/
getNode() {
return this.node;
}
}
__decorate([
utils_1.Memoize
], DocumentSpan.prototype, "getTextSpan", null);
exports.DocumentSpan = DocumentSpan;
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