Add experimental AstServiceParser

src/utils/ast-utils.ts

@@ -0,0 +1,19 @@
+import * as ts from 'typescript';
+
+export function printAllChildren(sourceFile: ts.SourceFile, node: ts.Node, depth = 0) {
+	console.log(
+		new Array(depth + 1).join('----'),
+		`[${node.kind}]`,
+		syntaxKindToName(node.kind),
+		`[pos: ${node.pos}-${node.end}]`,
+		':\t\t\t',
+		node.getFullText(sourceFile).trim()
+	);
+
+	depth++;
+	node.getChildren(sourceFile).forEach(childNode => printAllChildren(sourceFile, childNode, depth));
+}
+
+export function syntaxKindToName(kind: ts.SyntaxKind) {
+	return ts.SyntaxKind[kind];
+}