From 2c65292119d13b880ad57783dda434147b6f6980 Mon Sep 17 00:00:00 2001
From: Ryan Dahl <ry@tinyclouds.org>
Date: Sat, 19 May 2018 07:06:23 -0400
Subject: [PATCH] Source map support. Partially working.

---
 main.ts                     | 24 ++++++++++++++++++++++++
 package.json                |  2 ++
 runtime.ts                  | 15 ++++++++-------
 testdata/007_stack_trace.ts | 11 +++++++++++
 yarn.lock                   | 19 ++++++++++++++++++-
 5 files changed, 63 insertions(+), 8 deletions(-)
 create mode 100644 testdata/007_stack_trace.ts

diff --git a/main.ts b/main.ts
index ac0b4d3292..9140d20ff6 100644
--- a/main.ts
+++ b/main.ts
@@ -3,6 +3,29 @@ import "./util";
 import * as runtime from "./runtime";
 import * as timers from "./timers";
 import * as util from "./util";
+import * as sourceMap from "source-map-support";
+
+function retrieveFileForSourceMap(path: string): string {
+  util.log("retrieveFileForSourceMap", path);
+  throw Error("implemtn me");
+}
+
+function retrieveSourceMap(source: string): sourceMap.UrlAndMap {
+  util.log("retrieveSourceMap", source);
+  throw Error("implemtn me");
+  //return { url, map }
+}
+
+// TODO handleUncaughtExceptions
+sourceMap.install({
+  //handleUncaughtExceptions: true,
+  environment: "node",
+  retrieveFile: retrieveFileForSourceMap,
+  hookRequire: false,
+  overrideRetrieveSourceMap: true,
+  overrideRetrieveFile: true,
+  retrieveSourceMap
+});
 
 // To control internal logging output
 // Set with the -debug command-line flag.
@@ -11,6 +34,7 @@ export let debug = false;
 function start(cwd: string, argv: string[], debugFlag: boolean): void {
   debug = debugFlag;
   util.log("start", { cwd, argv, debugFlag });
+
   const inputFn = argv[0];
   const mod = runtime.resolveModule(inputFn, cwd + "/");
   mod.compileAndRun();
diff --git a/package.json b/package.json
index 60bdc8a053..df7ef042e6 100644
--- a/package.json
+++ b/package.json
@@ -5,9 +5,11 @@
     "fmt": "prettier --write *.ts* *.js *.json"
   },
   "devDependencies": {
+    "@types/source-map-support": "^0.4.0",
     "http-server": "^0.11.1",
     "parcel-bundler": "^1.8.1",
     "protobufjs": "^6.8.6",
+    "source-map-support": "^0.5.6",
     "tslint": "^5.10.0",
     "typescript": "^2.8.3"
   },
diff --git a/runtime.ts b/runtime.ts
index 7d6633ca9c..1b1e309b5e 100644
--- a/runtime.ts
+++ b/runtime.ts
@@ -14,6 +14,10 @@ import "./url";
 
 const EOL = "\n";
 
+// tslint:disable-next-line:no-any
+type AmdFactory = (...args: any[]) => undefined | object;
+type AmdDefine = (deps: string[], factory: AmdFactory) => void;
+
 // This class represents a module. We call it FileModule to make it explicit
 // that each module represents a single file.
 // Access to FileModule instances should only be done thru the static method
@@ -66,10 +70,6 @@ export class FileModule {
   }
 }
 
-// tslint:disable-next-line:no-any
-type AmdFactory = (...args: any[]) => undefined | object;
-type AmdDefine = (deps: string[], factory: AmdFactory) => void;
-
 export function makeDefine(fileName: string): AmdDefine {
   const localDefine = (deps: string[], factory: AmdFactory): void => {
     const localRequire = (x: string) => {
@@ -122,6 +122,7 @@ function resolveModuleName(
 function execute(fileName: string, outputCode: string): void {
   util.assert(outputCode && outputCode.length > 0);
   util._global["define"] = makeDefine(fileName);
+  outputCode += "\n//# sourceURL=" + fileName;
   util.globalEval(outputCode);
   util._global["define"] = null;
 }
@@ -131,12 +132,12 @@ class Compiler {
   options: ts.CompilerOptions = {
     allowJs: true,
     module: ts.ModuleKind.AMD,
-    outDir: "$deno$"
+    outDir: "$deno$",
+    inlineSourceMap: true,
+    inlineSources: true
   };
   /*
   allowJs: true,
-  inlineSourceMap: true,
-  inlineSources: true,
   module: ts.ModuleKind.AMD,
   noEmit: false,
   outDir: '$deno$',
diff --git a/testdata/007_stack_trace.ts b/testdata/007_stack_trace.ts
new file mode 100644
index 0000000000..2424bf9497
--- /dev/null
+++ b/testdata/007_stack_trace.ts
@@ -0,0 +1,11 @@
+function foo() {
+  throw Error("bad");
+}
+
+function bar() {
+  foo()
+}
+
+console.log("before");
+bar()
+console.log("after");
diff --git a/yarn.lock b/yarn.lock
index 52e93859b5..e7e3e6929b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -49,10 +49,20 @@
   version "3.0.32"
   resolved "https://registry.yarnpkg.com/@types/long/-/long-3.0.32.tgz#f4e5af31e9e9b196d8e5fca8a5e2e20aa3d60b69"
 
+"@types/node@*":
+  version "10.1.2"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.1.2.tgz#1b928a0baa408fc8ae3ac012cc81375addc147c6"
+
 "@types/node@^8.9.4":
   version "8.10.14"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.10.14.tgz#a24767cfa22023f1bf7e751c0ead56a14c07ed45"
 
+"@types/source-map-support@^0.4.0":
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/@types/source-map-support/-/source-map-support-0.4.0.tgz#a62a1866614af68c888173c001481f242aaf148b"
+  dependencies:
+    "@types/node" "*"
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -3317,11 +3327,18 @@ source-map-support@^0.4.15:
   dependencies:
     source-map "^0.5.6"
 
+source-map-support@^0.5.6:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
 
-source-map@0.6.1, source-map@^0.6.1, source-map@~0.6.1:
+source-map@0.6.1, source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"