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60 lines
1.6 KiB
60 lines
1.6 KiB
/*
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* A labelled statement can only be followed by a statement, not a
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* source element, even at the top level. Concretely, a function
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* declaration cannot follow a label, nor can an expression statement
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* begin with 'function'.
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*
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* This is the E5 standards compliant behavior. However, this test
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* case tests for the default Duktape behavior (modelled after V8):
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* function declarations are allowed outside top level in non-strict
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* mode, and are treated like ordinary function declarations. In
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* strict mode they are not allowed.
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*/
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/*---
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{
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"nonstandard": true
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}
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---*/
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/*===
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try finished
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SyntaxError
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try finished
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===*/
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try {
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/* Function f2 declaration follows label which is not allowed.
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* Also, an expression statement cannot begin (directly) with
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* 'function', so this should result in SyntaxError in a fully
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* compliant implementation.
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*
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* V8 allows this in non-strict mode (as function statement).
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* This is also Duktape behavior now (unless DUK_OPT_NO_NONSTD_FUNC_STMT
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* is used).
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*/
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eval("function f1() { mylabel: function f2() {} }");
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print("try finished");
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} catch (e) {
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print(e.name);
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}
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try {
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/* Strict mode should have no effect on this, but this test
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* illustrates V8 behavior (i.e. V8 gives a SyntaxError here
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* but only in strict mode).
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*/
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eval("function f1() { 'use strict'; mylabel: function f2() {} }");
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print("try finished");
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} catch (e) {
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print(e.name);
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}
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try {
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/* Here function f2 is a function expression, so it is OK. */
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eval("function f1() { mylabel: (function f2() {}) }");
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print("try finished");
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} catch (e) {
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print(e.name);
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}
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