v8/test/mjsunit/compiler/literals.js

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// Test simple literals.
assertEquals(8, eval("8"));

assertEquals(null, eval("null"));

assertEquals("abc", eval("'abc'"));

assertEquals(8, eval("6;'abc';8"));

// Characters just outside the ranges of hex-escapes.
// "/" comes just before "0".
assertEquals("x1/", "\x1/");
assertEquals("u111/", "\u111/");
assertEquals("\\x1/", RegExp("\\x1/").source);
assertEquals("\\u111/", RegExp("\\u111/").source);

// ":" comes just after "9".
assertEquals("x1:", "\x1:");
assertEquals("u111:", "\u111:");
assertEquals("\\x1:", /\x1:/.source);
assertEquals("\\u111:", /\u111:/.source);

// "`" comes just before "a".
assertEquals("x1`", "\x1`");
assertEquals("u111`", "\u111`");
assertEquals("\\x1`", /\x1`/.source);
assertEquals("\\u111`", /\u111`/.source);

// "g" comes just before "f".
assertEquals("x1g", "\x1g");
assertEquals("u111g", "\u111g");
assertEquals("\\x1g", /\x1g/.source);
assertEquals("\\u111g", /\u111g/.source);

// "@" comes just before "A".
assertEquals("x1@", "\x1@");
assertEquals("u111@", "\u111@");
assertEquals("\\x1@", /\x1@/.source);
assertEquals("\\u111@", /\u111@/.source);

// "G" comes just after "F".
assertEquals("x1G", "\x1G");
assertEquals("u111G", "\u111G");
assertEquals("\\x1G", /\x1G/.source);
assertEquals("\\u111G", /\u111G/.source);

// Test some materialized array literals.
assertEquals([1,2,3,4], eval('[1,2,3,4]'));
assertEquals([[1,2],3,4], eval('[[1,2],3,4]'));
assertEquals([1,[2,3,4]], eval('[1,[2,3,4]]'));

assertEquals([1,2,3,4], eval('var a=1, b=2; [a,b,3,4]'))
assertEquals([1,2,3,4], eval('var a=1, b=2, c = [a,b,3,4]; c'));

function double(x) { return x + x; }
var s = 'var a = 1, b = 2; [double(a), double(b), double(3), double(4)]';
assertEquals([2,4,6,8], eval(s));

// Test array literals in effect context.
assertEquals(17, eval('[1,2,3,4]; 17'));
assertEquals(19, eval('var a=1, b=2; [a,b,3,4]; 19'));
assertEquals(23, eval('var a=1, b=2; c=23; [a,b,3,4]; c'));