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f91fa16661
This commit adds "Deno.core.createPrepareStackTrace". This function was moved from "cli/rt/40_error_stack.js" to unify handling of stack frames in core (before this PR there was implicit dependency on logic in "core/error.rs::JsError"). Unfortunately formatting logic must still be duplicated in "cli/error.js::PrettyJsError" to provide coloring, but currently there's no solution to this problem. "createPrepareStackTrace" can accept a single argument; a function that takes a location and provides source mapped location back.
68 lines
1.8 KiB
TypeScript
68 lines
1.8 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { assert, assertEquals, assertMatch, unitTest } from "./test_util.ts";
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unitTest(function errorStackMessageLine(): void {
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const e1 = new Error();
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e1.name = "Foo";
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e1.message = "bar";
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assertMatch(e1.stack!, /^Foo: bar\n/);
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const e2 = new Error();
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e2.name = "";
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e2.message = "bar";
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assertMatch(e2.stack!, /^bar\n/);
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const e3 = new Error();
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e3.name = "Foo";
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e3.message = "";
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assertMatch(e3.stack!, /^Foo\n/);
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const e4 = new Error();
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e4.name = "";
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e4.message = "";
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assertMatch(e4.stack!, /^\n/);
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const e5 = new Error();
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e5.name = undefined;
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e5.message = undefined;
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assertMatch(e5.stack!, /^Error\n/);
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const e6 = new Error();
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e6.name = null;
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e6.message = null;
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assertMatch(e6.stack!, /^null: null\n/);
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});
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unitTest(function captureStackTrace(): void {
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function foo(): void {
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const error = new Error();
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const stack1 = error.stack!;
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Error.captureStackTrace(error, foo);
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const stack2 = error.stack!;
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// stack2 should be stack1 without the first frame.
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assertEquals(stack2, stack1.replace(/(?<=^[^\n]*\n)[^\n]*\n/, ""));
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}
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foo();
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});
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// FIXME(bartlomieju): no longer works after migrating
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// to JavaScript runtime code
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unitTest({ ignore: true }, function applySourceMap(): void {
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const result = Deno.applySourceMap({
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fileName: "CLI_SNAPSHOT.js",
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lineNumber: 23,
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columnNumber: 0,
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});
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Deno.core.print(`result: ${result}`, true);
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assert(result.fileName.endsWith(".ts"));
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assert(result.lineNumber != null);
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assert(result.columnNumber != null);
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});
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