mirror of
https://github.com/classilla/tenfourfox.git
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79 lines
3.3 KiB
JavaScript
79 lines
3.3 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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/**
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* Check that some potentially problematic identifier nodes have the
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* right location information attached.
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*/
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function test() {
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let { Parser, ParserHelpers, SyntaxTreeVisitor } =
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Cu.import("resource://devtools/shared/Parser.jsm", {});
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function verify(source, predicate, [sline, scol], [eline, ecol]) {
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let ast = Parser.reflectionAPI.parse(source);
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let node = SyntaxTreeVisitor.filter(ast, predicate).pop();
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let loc = ParserHelpers.getNodeLocation(node);
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is(loc.start.toSource(), { line: sline, column: scol }.toSource(),
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"The start location was correct for the identifier in: '" + source + "'.");
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is(loc.end.toSource(), { line: eline, column: ecol }.toSource(),
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"The end location was correct for the identifier in: '" + source + "'.");
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}
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// FunctionDeclarations and FunctionExpressions.
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// The location is unavailable for the identifier node "foo".
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verify("function foo(){}", e => e.name == "foo", [1, 9], [1, 12]);
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verify("\nfunction\nfoo\n(\n)\n{\n}\n", e => e.name == "foo", [3, 0], [3, 3]);
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verify("({bar:function foo(){}})", e => e.name == "foo", [1, 15], [1, 18]);
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verify("(\n{\nbar\n:\nfunction\nfoo\n(\n)\n{\n}\n}\n)", e => e.name == "foo", [6, 0], [6, 3]);
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// Just to be sure, check the identifier node "bar" as well.
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verify("({bar:function foo(){}})", e => e.name == "bar", [1, 2], [1, 5]);
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verify("(\n{\nbar\n:\nfunction\nfoo\n(\n)\n{\n}\n}\n)", e => e.name == "bar", [3, 0], [3, 3]);
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// MemberExpressions.
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// The location is unavailable for the identifier node "bar".
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verify("foo.bar", e => e.name == "bar", [1, 4], [1, 7]);
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verify("\nfoo\n.\nbar\n", e => e.name == "bar", [4, 0], [4, 3]);
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// Just to be sure, check the identifier node "foo" as well.
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verify("foo.bar", e => e.name == "foo", [1, 0], [1, 3]);
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verify("\nfoo\n.\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);
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// VariableDeclarator
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// The location is incorrect for the identifier node "foo".
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verify("let foo = bar", e => e.name == "foo", [1, 4], [1, 7]);
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verify("\nlet\nfoo\n=\nbar\n", e => e.name == "foo", [3, 0], [3, 3]);
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// Just to be sure, check the identifier node "bar" as well.
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verify("let foo = bar", e => e.name == "bar", [1, 10], [1, 13]);
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verify("\nlet\nfoo\n=\nbar\n", e => e.name == "bar", [5, 0], [5, 3]);
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// Just to be sure, check AssignmentExpreesions as well.
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verify("foo = bar", e => e.name == "foo", [1, 0], [1, 3]);
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verify("\nfoo\n=\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);
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verify("foo = bar", e => e.name == "bar", [1, 6], [1, 9]);
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verify("\nfoo\n=\nbar\n", e => e.name == "bar", [4, 0], [4, 3]);
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// LabeledStatement, BreakStatement and ContinueStatement, because it's 1968 again
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verify("foo: bar", e => e.name == "foo", [1, 0], [1, 3]);
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verify("\nfoo\n:\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);
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verify("foo: for(;;) break foo", e => e.name == "foo", [1, 19], [1, 22]);
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verify("\nfoo\n:\nfor(\n;\n;\n)\nbreak\nfoo\n", e => e.name == "foo", [9, 0], [9, 3]);
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verify("foo: bar", e => e.name == "foo", [1, 0], [1, 3]);
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verify("\nfoo\n:\nbar\n", e => e.name == "foo", [2, 0], [2, 3]);
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verify("foo: for(;;) continue foo", e => e.name == "foo", [1, 22], [1, 25]);
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verify("\nfoo\n:\nfor(\n;\n;\n)\ncontinue\nfoo\n", e => e.name == "foo", [9, 0], [9, 3]);
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finish();
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}
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