test/LetConst/redeclaration.js

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

try {
    eval("const x = 1;const x = 1;");
} catch (e) {
    WScript.Echo("Test 1:");
    WScript.Echo(e);
}
try {
    eval("const x = 1;let x = 1;");
} catch (e) {
    WScript.Echo("Test 2:");
    WScript.Echo(e);
}
try {
    eval("let x = 1;const x = 1;");
} catch (e) {
    WScript.Echo("Test 3:");
    WScript.Echo(e);
}
try {
    eval("var x = 1;const x = 1;");
} catch (e) {
    WScript.Echo("Test 4:");
    WScript.Echo(e);
}
try {
    eval("const x = 1;var x = 1;");
} catch (e) {
    WScript.Echo("Test 5:");
    WScript.Echo(e);
}
try {
    eval("var x = 1;let x = 1;");
} catch (e) {
    WScript.Echo("Test 6:");
    WScript.Echo(e);
}
try {
    eval("const x = 1;const x = 1;");
} catch (e) {
    WScript.Echo("Test 7:");
    WScript.Echo(e);
}
try {
    eval("var x = 1;const x = 1;const x = 1;");
} catch (e) {
    WScript.Echo("Test 8:");
    WScript.Echo(e);
}
try {
    eval("const x = 1;const x = 1;var x = 1;");
} catch (e) {
    WScript.Echo("Test 9:");
    WScript.Echo(e);
}


//------------
try {
    eval("(function f(){ const x = 1;const x = 1; })()");
} catch (e) {
    WScript.Echo("Test a1:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ const x = 1;let x = 1; })()");
} catch (e) {
    WScript.Echo("Test a2:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ let x = 1;const x = 1; })()");
} catch (e) {
    WScript.Echo("Test a3:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ var x = 1;const x = 1; })()");
} catch (e) {
    WScript.Echo("Test a4:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ const x = 1;var x = 1; })()");
} catch (e) {
    WScript.Echo("Test a5:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ var x = 1;let x = 1; })()");
} catch (e) {
    WScript.Echo("Test a6:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ const x = 1;const x = 1; })()");
} catch (e) {
    WScript.Echo("Test a7:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ var x = 1;const x = 1;const x = 1; })()");
} catch (e) {
    WScript.Echo("Test a8:");
    WScript.Echo(e);
}
try {
    eval("(function f(){ const x = 1;const x = 1;var x = 1; })()");
} catch (e) {
    WScript.Echo("Test a9:");
    WScript.Echo(e);
}

// ---------
try {
    eval("function a() { function f(x) { const x = 1; } } a();");
} catch (e) {
    WScript.Echo("Test b1:");
    WScript.Echo(e);
}
try {
    eval("function a() { function f(x) { let x; } } a();");
} catch (e) {
    WScript.Echo("Test b2:");
    WScript.Echo(e);
}

try {
    eval("var x; { function x() {}; } let x;");
}
catch (e) {
    WScript.Echo("Test b3:");
    WScript.Echo(e);
}