// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. function assertUndef(x) { assertEquals(undefined, x); } // ClassDeclaration assertUndef(eval('class C {}')); assertUndef(eval('class C {m() {}}')); assertUndef(eval('class C extends null {}')); assertEquals(42, eval('42; class C {}')); assertEquals(42, eval('42; class C {m() {}}')); assertEquals(42, eval('42; class C extends null {}')); // IfStatement [13.6.7] assertUndef(eval('42; if (true) ; else 0;')); // ES5: 42 assertUndef(eval('42; if (true) ;')); // ES5: 42 assertUndef(eval('42; if (false) 0;')); // ES5: 42 assertEquals(1, eval('42; if (true) 1;')); assertEquals(1, eval('42; if (true) 1; else 0;')); assertEquals(0, eval('42; if (false) 1; else 0;')); // IterationStatement [13.7] assertUndef(eval('42; do ; while (false);')); // ES5: 42 assertUndef(eval('42; var x = 1; do ; while (x--);')); // ES5: 42 assertUndef(eval('42; while (false) 0;')); // ES5: 42 assertUndef(eval('42; while (true) break;')); // ES5: 42 assertUndef(eval('42; bla: while (true) break bla;')); // ES5: 42 assertUndef(eval('42; var x = 1; while (x--) ;')); // ES5: 42 assertUndef(eval('42; for (; false; ) 0;')); // ES5: 42 assertUndef(eval('42; for (var x = 1; x; x--) ;')); // ES5: 42 assertUndef(eval('42; for (var x in ["foo", "bar"]) ;')); assertUndef(eval('42; for (var x of ["foo", "bar"]) ;')); assertUndef(eval('42; for (let x = 1; x; x--) ;')); assertUndef(eval('42; for (let x in ["foo", "bar"]) ;')); assertUndef(eval('42; for (let x of ["foo", "bar"]) ;')); assertUndef(eval('42; for (const x in ["foo", "bar"]) ;')); assertUndef(eval('42; for (const x of ["foo", "bar"]) ;')); assertEquals(1, eval('42; var x = 10; do x--; while (x);')); assertEquals(1, eval('42; var x = 10; while (x) x--;')); assertEquals(1, eval('42; for (var x = 10; x; x--) x;')); assertEquals(1, eval('42; for (var x = 10; x; --x) x;')); assertEquals(1, eval('42; for (let x = 10; x; --x) x;')); assertEquals(1, eval('42; var y = 2; for (var x in ["foo", "bar"]) y--;')); assertEquals(1, eval('42; var y = 2; for (const x in ["foo", "bar"]) y--;')); assertEquals(1, eval('42; var y = 2; for (let x in ["foo", "bar"]) y--;')); assertEquals(1, eval('42; var y = 2; for (var x of ["foo", "bar"]) y--;')); assertEquals(1, eval('42; var y = 2; for (const x of ["foo", "bar"]) y--;')); assertEquals(1, eval('42; var y = 2; for (let x of ["foo", "bar"]) y--;')); // WithStatement [13.11.7] assertUndef(eval('42; with ({}) ;')); // ES5: 42 assertEquals(1, eval('42; with ({}) 1;')); // SwitchStatement [13.12.11] assertUndef(eval('42; switch (0) {};')); // ES5: 42 assertUndef(eval('42; switch (0) { case 1: 1; };')); // ES5: 42 assertUndef(eval('42; switch (0) { case 0: ; };')); // ES5: 42 assertUndef(eval('42; switch (0) { default: ; };')); // ES5: 42 assertUndef(eval('42; switch (0) { case 0: break; }')); // ES5: 42 assertEquals(1, eval('42; switch (0) { case 0: 1; }')); assertEquals(1, eval('42; switch (0) { case 0: 1; break; }')); assertEquals(1, eval('42; switch (0) { case 0: 1; case 666: break; }')); assertEquals(2, eval('42; switch (0) { case 0: 1; case 666: 2; break; }')); // TryStatement [13.15.8] assertUndef(eval('42; try { } catch(e) { };')); // ES5: 42 assertUndef(eval('42; try { } catch(e) { 0; };')); // ES5: 42 assertUndef(eval('42; try { throw "" } catch(e) { };')); // ES5: 42 assertUndef(eval('42; try { throw "" } catch(e) { } finally { };')); // ES5: 42 assertUndef(eval('42; try { } finally { 666 };')); // ES5: 42 // Some combinations assertUndef(eval('42; switch (0) { case 0: if (true) break; }')); // ES5: 42 assertUndef(eval('42; switch (0) { case 0: 1; if (true) ; }')); // ES5: 1 assertUndef(eval('42; switch (0) { case 0: 1; try { break } catch(e) { }; }')); // ES5: 1 assertEquals(0, eval('42; switch (0) { case 0: 0; case 1: break; }')); assertEquals(0, eval('42; while (1) { 0; break; }')) assertEquals(0, eval('42; bla: while (1) { 0; break bla; }')) assertEquals(0, eval('42; while (1) { with ({}) { 0; break; } }')) assertEquals(0, eval('42; while (1) { try { 0; break } catch(e) {666} }')) assertEquals(0, eval( '42; while (1) { try { 0; break } catch(e) {666} finally {666} }')) assertEquals(0, eval( '42; while (1) { try { throw "" } catch(e) {666} finally {0; break} }')) assertEquals(0, eval( '42; while (1) { try { throw "" } catch(e) {0; break} finally {666} }')) assertEquals(0, eval( '42; while (1) { try { 666 } finally {0; break} }')); assertEquals(0, eval( '42; while (1) { try { 666; break } finally {0; break} }')); assertEquals(0, eval( '42; lab: try { 666; break lab } finally {0; break lab}')); assertEquals(undefined, eval( 'var b = 1; ' + 'outer: while (1) { while (1) { if (b--) 42; else break outer; }; 666 }')); assertUndef(eval('42; switch (0) { case 0: 1; if (true) break; }')); // ES5: 1 assertUndef(eval('a: while(true) { do { 0 } while(false); switch(1) { case 0: 1; case 1: break a; }; 0 }')); assertUndef(eval('a: while(true) { do { 0 } while(false); try {} finally { break a }; 0 }')); assertUndef(eval('a: while(true) { b: while(true) { 0; break b; }; switch(1) { case 1: break a; }; 2 }')); assertUndef(eval('a: while(true) { b: while(true) { 0; break b; }; while (true) { break a; }; 2 }')); assertUndef(eval('while (true) { 20; a:{ break a; } with ({}) break; 30; }')); assertEquals(42, eval('a: while(true) { switch(0) { case 0: 42; case 1: break a; }; 33 }')); assertUndef(eval( 'for (var i = 0; i < 2; ++i) { if (i) { try {} finally { break; } } 0; }' )); assertUndef(eval( 'for (var i = 0; i < 2; ++i) { if (i) { try {} finally { continue; } } 0; }' )); //////////////////////////////////////////////////////////////////////////////// // // The following are copied from webkit/eval-throw-return and adapted. function throwFunc() { throw ""; } function throwOnReturn(){ 1; return throwFunc(); } function twoFunc() { 2; } assertEquals(1, eval("1;")); assertUndef(eval("1; try { foo = [2,3,throwFunc(), 4]; } catch (e){}")); assertUndef(eval("1; try { 2; throw ''; } catch (e){}")); assertUndef(eval("1; try { 2; throwFunc(); } catch (e){}")); assertEquals(3, eval("1; try { 2; throwFunc(); } catch (e){3;} finally {}")); assertEquals(3, eval("1; try { 2; throwFunc(); } catch (e){3;} finally {4;}")); assertUndef(eval("function blah() { 1; }; blah();")); assertUndef(eval("var x = 1;")); assertEquals(1, eval("if (true) { 1; } else { 2; }")); assertEquals(2, eval("if (false) { 1; } else { 2; }")); assertUndef(eval("try{1; if (true) { 2; throw ''; } else { 2; }} catch(e){}")); assertEquals(2, eval("1; var i = 0; do { ++i; 2; } while(i!=1);")); assertUndef(eval( "try{1; var i = 0; do { ++i; 2; throw ''; } while (i!=1);} catch(e){}")); assertUndef(eval("1; try{2; throwOnReturn();} catch(e){}")); assertUndef(eval("1; twoFunc();")); assertEquals(2, eval("1; with ( { a: 0 } ) { 2; }"));