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1 /* Any copyright is dedicated to the Public Domain. |
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2 http://creativecommons.org/publicdomain/zero/1.0/ */ |
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3 |
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4 /** |
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5 * Check that some potentially problematic identifier nodes have the |
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6 * right location information attached. |
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7 */ |
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8 |
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9 function test() { |
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10 let { Parser, ParserHelpers, SyntaxTreeVisitor } = |
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11 Cu.import("resource:///modules/devtools/Parser.jsm", {}); |
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12 |
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13 function verify(source, predicate, [sline, scol], [eline, ecol]) { |
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14 let ast = Parser.reflectionAPI.parse(source); |
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15 let node = SyntaxTreeVisitor.filter(ast, predicate).pop(); |
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16 let loc = ParserHelpers.getNodeLocation(node); |
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17 |
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18 is(loc.start.toSource(), { line: sline, column: scol }.toSource(), |
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19 "The start location was correct for the identifier in: '" + source + "'."); |
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20 is(loc.end.toSource(), { line: eline, column: ecol }.toSource(), |
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21 "The end location was correct for the identifier in: '" + source + "'."); |
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22 } |
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23 |
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24 // FunctionDeclarations and FunctionExpressions. |
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25 |
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26 // The location is unavailable for the identifier node "foo". |
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27 verify("function foo(){}", e => e.name == "foo", [1, 9], [1, 12]); |
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28 verify("\nfunction\nfoo\n(\n)\n{\n}\n", e => e.name == "foo", [3, 0], [3, 3]); |
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29 |
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30 verify("({bar:function foo(){}})", e => e.name == "foo", [1, 15], [1, 18]); |
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31 verify("(\n{\nbar\n:\nfunction\nfoo\n(\n)\n{\n}\n}\n)", e => e.name == "foo", [6, 0], [6, 3]); |
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32 |
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33 // Just to be sure, check the identifier node "bar" as well. |
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34 verify("({bar:function foo(){}})", e => e.name == "bar", [1, 2], [1, 5]); |
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35 verify("(\n{\nbar\n:\nfunction\nfoo\n(\n)\n{\n}\n}\n)", e => e.name == "bar", [3, 0], [3, 3]); |
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36 |
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37 // MemberExpressions. |
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38 |
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39 // The location is unavailable for the identifier node "bar". |
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40 verify("foo.bar", e => e.name == "bar", [1, 4], [1, 7]); |
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41 verify("\nfoo\n.\nbar\n", e => e.name == "bar", [4, 0], [4, 3]); |
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42 |
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43 // Just to be sure, check the identifier node "foo" as well. |
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44 verify("foo.bar", e => e.name == "foo", [1, 0], [1, 3]); |
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45 verify("\nfoo\n.\nbar\n", e => e.name == "foo", [2, 0], [2, 3]); |
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46 |
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47 // VariableDeclarator |
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48 |
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49 // The location is incorrect for the identifier node "foo". |
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50 verify("let foo = bar", e => e.name == "foo", [1, 4], [1, 7]); |
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51 verify("\nlet\nfoo\n=\nbar\n", e => e.name == "foo", [3, 0], [3, 3]); |
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52 |
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53 // Just to be sure, check the identifier node "bar" as well. |
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54 verify("let foo = bar", e => e.name == "bar", [1, 10], [1, 13]); |
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55 verify("\nlet\nfoo\n=\nbar\n", e => e.name == "bar", [5, 0], [5, 3]); |
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56 |
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57 // Just to be sure, check AssignmentExpreesions as well. |
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58 verify("foo = bar", e => e.name == "foo", [1, 0], [1, 3]); |
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59 verify("\nfoo\n=\nbar\n", e => e.name == "foo", [2, 0], [2, 3]); |
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60 verify("foo = bar", e => e.name == "bar", [1, 6], [1, 9]); |
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61 verify("\nfoo\n=\nbar\n", e => e.name == "bar", [4, 0], [4, 3]); |
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62 |
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63 // LabeledStatement and ContinueStatement, because it's 1968 again |
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64 |
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65 verify("foo: bar", e => e.name == "foo", [1, 0], [1, 3]); |
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66 verify("\nfoo\n:\nbar\n", e => e.name == "foo", [2, 0], [2, 3]); |
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67 |
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68 verify("foo: for(;;) continue foo", e => e.name == "foo", [1, 22], [1, 25]); |
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69 verify("\nfoo\n:\nfor(\n;\n;\n)\ncontinue\nfoo\n", e => e.name == "foo", [9, 0], [9, 3]); |
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70 |
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71 finish(); |
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72 } |