Added mago-mi support (fix #67)

src/backend/mi2/mi2mago.ts

@@ -0,0 +1,47 @@
+import { MI2_LLDB } from "./mi2lldb"
+import { Stack } from "../backend"
+import { MINode } from "../mi_parse"
+
+export class MI2_Mago extends MI2_LLDB {
+	getStack(maxLevels: number): Thenable<Stack[]> {
+		return new Promise((resolve, reject) => {
+			let command = "stack-list-frames";
+			this.sendCommand(command).then((result) => {
+				let stack = result.resultRecords.results;
+				this.log("stdout", JSON.stringify(result.resultRecords.results.length));
+				let ret: Stack[] = [];
+				let remaining = [];
+				let addToStack = (element) => {
+					this.log("stdout", JSON.stringify(element));
+					let level = MINode.valueOf(element, "frame.level");
+					let addr = MINode.valueOf(element, "frame.addr");
+					let func = MINode.valueOf(element, "frame.func");
+					let filename = MINode.valueOf(element, "file");
+					let file = MINode.valueOf(element, "fullname");
+					let line = 0;
+					let lnstr = MINode.valueOf(element, "line");
+					if (lnstr)
+						line = parseInt(lnstr);
+					let from = parseInt(MINode.valueOf(element, "from"));
+					ret.push({
+						address: addr,
+						fileName: filename || "",
+						file: file || "<unknown>",
+						function: func || from || "<unknown>",
+						level: level,
+						line: line
+					});
+				}
+				stack.forEach(element => {
+					if (element)
+						if (element[0] == "stack") {
+							addToStack(element[1]);
+						} else remaining.push(element);
+				});
+				if (remaining.length)
+					addToStack(remaining);
+				resolve(ret);
+			}, reject);
+		});
+	}
+}