The Tor Browser: browser/devtools/debugger/test/browser_dbg

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* Any copyright is dedicated to the Public Domain.

     2    http://creativecommons.org/publicdomain/zero/1.0/ */

     4 /**

     5  * Check that some potentially problematic identifier nodes have the

     6  * right location information attached.

     7  */

     9 function test() {

    10   let { Parser, ParserHelpers, SyntaxTreeVisitor } =

    11     Cu.import("resource:///modules/devtools/Parser.jsm", {});

    13   function verify(source, predicate, [sline, scol], [eline, ecol]) {

    14     let ast = Parser.reflectionAPI.parse(source);

    15     let node = SyntaxTreeVisitor.filter(ast, predicate).pop();

    16     let loc = ParserHelpers.getNodeLocation(node);

    18     is(loc.start.toSource(), { line: sline, column: scol }.toSource(),

    19       "The start location was correct for the identifier in: '" + source + "'.");

    20     is(loc.end.toSource(), { line: eline, column: ecol }.toSource(),

    21       "The end location was correct for the identifier in: '" + source + "'.");

    22   }

    24   // FunctionDeclarations and FunctionExpressions.

    26   // The location is unavailable for the identifier node "foo".

    27   verify("function foo(){}", e => e.name == "foo", [1, 9], [1, 12]);

    28   verify("\nfunction\nfoo\n(\n)\n{\n}\n", e => e.name == "foo", [3, 0], [3, 3]);

    30   verify("({bar:function foo(){}})", e => e.name == "foo", [1, 15], [1, 18]);

    31   verify("(\n{\nbar\n:\nfunction\nfoo\n(\n)\n{\n}\n}\n)", e => e.name == "foo", [6, 0], [6, 3]);

    33   // Just to be sure, check the identifier node "bar" as well.

    34   verify("({bar:function foo(){}})", e => e.name == "bar", [1, 2], [1, 5]);

    35   verify("(\n{\nbar\n:\nfunction\nfoo\n(\n)\n{\n}\n}\n)", e => e.name == "bar", [3, 0], [3, 3]);

    37   // MemberExpressions.

    39   // The location is unavailable for the identifier node "bar".

    40   verify("foo.bar", e => e.name == "bar", [1, 4], [1, 7]);

    41   verify("\nfoo\n.\nbar\n", e => e.name == "bar", [4, 0], [4, 3]);

    43   // Just to be sure, check the identifier node "foo" as well.

    44   verify("foo.bar", e => e.name == "foo", [1, 0], [1, 3]);

    45   verify("\nfoo\n.\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);

    47   // VariableDeclarator

    49   // The location is incorrect for the identifier node "foo".

    50   verify("let foo = bar", e => e.name == "foo", [1, 4], [1, 7]);

    51   verify("\nlet\nfoo\n=\nbar\n", e => e.name == "foo", [3, 0], [3, 3]);

    53   // Just to be sure, check the identifier node "bar" as well.

    54   verify("let foo = bar", e => e.name == "bar", [1, 10], [1, 13]);

    55   verify("\nlet\nfoo\n=\nbar\n", e => e.name == "bar", [5, 0], [5, 3]);

    57   // Just to be sure, check AssignmentExpreesions as well.

    58   verify("foo = bar", e => e.name == "foo", [1, 0], [1, 3]);

    59   verify("\nfoo\n=\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);

    60   verify("foo = bar", e => e.name == "bar", [1, 6], [1, 9]);

    61   verify("\nfoo\n=\nbar\n", e => e.name == "bar", [4, 0], [4, 3]);

    63   // LabeledStatement and ContinueStatement, because it's 1968 again

    65   verify("foo: bar", e => e.name == "foo", [1, 0], [1, 3]);

    66   verify("\nfoo\n:\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);

    68   verify("foo: for(;;) continue foo", e => e.name == "foo", [1, 22], [1, 25]);

    69   verify("\nfoo\n:\nfor(\n;\n;\n)\ncontinue\nfoo\n", e => e.name == "foo", [9, 0], [9, 3]);

    71   finish();

    72 }

The Tor Browser / file revision