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	Rather than printing them to stderr directly the parser now keeps a Vector<Error>, which allows the "owner" of the parser to consume them individually after parsing. The Error struct has a message, line number, column number and a to_string() helper function to format this information into a meaningful error message. The Function() constructor will now include an error message when throwing a SyntaxError.
		
			
				
	
	
		
			42 lines
		
	
	
	
		
			1.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			42 lines
		
	
	
	
		
			1.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
load("test-common.js");
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try {
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    assert(Function.length === 1);
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    assert(Function.name === "Function");
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    assert(Function.prototype.length === 0);
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    assert(Function.prototype.name === "");
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    assert(typeof Function() === "function");
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    assert(typeof new Function() === "function");
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    assert(Function()() === undefined);
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    assert(new Function()() === undefined);
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    assert(Function("return 42")() === 42);
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    assert(new Function("return 42")() === 42);
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    assert(new Function("foo", "return foo")(42) === 42);
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    assert(new Function("foo,bar", "return foo + bar")(1, 2) === 3);
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    assert(new Function("foo", "bar", "return foo + bar")(1, 2) === 3);
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    assert(new Function("foo", "bar,baz", "return foo + bar + baz")(1, 2, 3) === 6);
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    assert(new Function("foo", "bar", "baz", "return foo + bar + baz")(1, 2, 3) === 6);
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    assert(new Function("foo", "if (foo) { return 42; } else { return 'bar'; }")(true) === 42);
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    assert(new Function("foo", "if (foo) { return 42; } else { return 'bar'; }")(false) === "bar");
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    assert(new Function("return typeof Function()")() === "function");
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    assert(new Function("x", "return function (y) { return x + y };")(1)(2) === 3);
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    assert(new Function().name === "anonymous");
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    assert(new Function().toString() === "function anonymous() {\n  ???\n}");
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    assertThrowsError(() => {
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        new Function("[");
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    }, {
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        error: SyntaxError,
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        // This might be confusing at first but keep in mind it's actually parsing
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        // function anonymous() { [ }
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        // This is in line with what other engines are reporting.
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        message: "Unexpected token CurlyClose. Expected BracketClose (line: 1, column: 26)"
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    });
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    console.log("PASS");
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} catch (e) {
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    console.log("FAIL: " + e.message);
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}
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