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comparison_table.js
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228 lines (209 loc) · 6.77 KB
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// Generated by CoffeeScript 1.6.3
(function() {
var ForComparison, isObject, isString, rotateText, supportsCanvas, values;
isString = function(obj) {
return Object.prototype.toString.call(obj) === "[object String]";
};
isObject = function(obj) {
return Object.prototype.toString.call(obj) === "[object Object]";
};
ForComparison = (function() {
function ForComparison(item) {
var match, mtch;
this.item = item;
/*
The goal here is to get a string that evaluates to the desired
value. This string is set to object.asString
For complicated cases which can't be passed in JSON the value
can be passed as a string wrapped in backticks which is evaluated
here.
example: "`parseFloat("nan")`" means NaN.
*/
this.asString = "" + this.item;
if (isString(this.item)) {
if (this.item.length > 0 && (mtch = this.item.match(/^`(.*)`$/))) {
match = mtch[1];
this.item = new Function("return " + match)();
if (isString(this.item)) {
this.asString = JSON.stringify(this.item);
} else if (this.item === undefined) {
this.asString = "undefined";
} else if (isObject(this.item)) {
this.asString = JSON.stringify(this.item);
} else if (isNaN(this.item)) {
this.asString = "NaN";
} else {
this.asString = JSON.stringify(this.item);
}
} else if (this.item.length === 0) {
this.asString = '""';
}
} else if (this.item.toString() === "[object Object]") {
this.asString = "{}";
} else if (this.item instanceof Array) {
this.asString = JSON.stringify(this.item);
}
}
ForComparison.prototype.testResults = function(fc2, comparator) {
var evalStr;
if (comparator == null) {
comparator = "===";
}
evalStr = "" + this.asString + comparator + fc2.asString;
return [evalStr, eval('(' + evalStr + ')')];
};
ForComparison.prototype.toString = function() {
return this.asString;
};
return ForComparison;
})();
/*
The values which are strings wrapped in backticks (`) are evaluated
before being compared.
*/
values = [true, false, 1, 0, -1, "`'true'`", "`'false'`", "`'1'`", "`'0'`", "`'-1'`", "", "`null`", "`undefined`", "`[]`", "`{}`", [[]], [0], [1], "`parseFloat('nan')`"];
(function() {
var testRepr;
testRepr = function(what, shouldBe) {
var fc;
fc = new ForComparison(what);
if (fc.toString() !== shouldBe) {
throw new Error("Value is not being represented correctly.");
}
};
testRepr(true, "true");
testRepr(false, "false");
testRepr(1, "1");
testRepr(0, "0");
testRepr(-1, "-1");
testRepr("`'true'`", "\"true\"");
testRepr("`'false'`", "\"false\"");
testRepr("`'1'`", "\"1\"");
testRepr("`'0'`", "\"0\"");
testRepr("`'-1'`", "\"-1\"");
testRepr("", "\"\"");
testRepr("`null`", "null");
testRepr("`undefined`", "undefined");
testRepr("`[]`", "[]");
testRepr("`{}`", "{}");
testRepr([[]], "[[]]");
testRepr([0], "[0]");
testRepr([1], "[1]");
return testRepr("`parseFloat('nan')`", "NaN");
})();
(function() {
var testEquality;
testEquality = function(tf, item, comparator) {
var fc1;
fc1 = new ForComparison(item);
if (fc1.testResults(fc1, comparator)[1] !== tf) {
throw new Error("Condition should be " + tf);
}
};
testEquality(true==true, "`true`", "==");
testEquality([[]]==[[]], "`[[]]`", "==");
return testEquality([]==[], "`[]`", "==");
})();
supportsCanvas = (function() {
var el;
el = document.createElement("canvas");
return !!(el.getContext && el.getContext("2d"));
})();
this.buildComparisonTable = function(values, comparator) {
var $el, $headRow, $table, $tr, comp, comps, evalStr, td, tf, v, valX, valY, x, y, _i, _j, _k, _len, _len1, _len2, _ref;
comps = (function() {
var _i, _len, _results;
_results = [];
for (_i = 0, _len = values.length; _i < _len; _i++) {
v = values[_i];
_results.push(new ForComparison(v));
}
return _results;
})();
$table = $("<table>", {
"class": "comparisons"
});
$headRow = $("<tr>").append("<td>").appendTo($table);
for (_i = 0, _len = comps.length; _i < _len; _i++) {
comp = comps[_i];
$el = supportsCanvas ? rotateText(comp.asString) : $("<span>", {
"class": "rotate",
text: comp.asString
});
$("<td>", {
"class": "header col"
}).html($el).appendTo($headRow);
}
for (x = _j = 0, _len1 = comps.length; _j < _len1; x = ++_j) {
valX = comps[x];
$tr = $("<tr>").appendTo($table);
$("<td>", {
"class": "row header"
}).text(valX.asString).appendTo($tr);
for (y = _k = 0, _len2 = comps.length; _k < _len2; y = ++_k) {
valY = comps[y];
td = $("<td>", {
"class": "cell",
html: "<div> </div>"
}).appendTo($tr);
_ref = valX.testResults(valY, comparator), evalStr = _ref[0], tf = _ref[1];
td.attr("title", "" + evalStr + " // " + tf);
if (tf) {
td.addClass("equal");
}
}
}
return $table;
};
this.buildComparisonTableForIf = function(values) {
var $table, $td, $tr, comp, comps, expression, v, val, _i, _len;
comps = (function() {
var _i, _len, _results;
_results = [];
for (_i = 0, _len = values.length; _i < _len; _i++) {
v = values[_i];
_results.push(new ForComparison(v));
}
return _results;
})();
$table = $("<table>", {
"class": "comparisons"
});
for (_i = 0, _len = comps.length; _i < _len; _i++) {
comp = comps[_i];
$tr = $("<tr>").html($("<td>", {
"class": "header row",
text: comp.asString
})).appendTo($table);
$td = $("<td>", {
"class": "cell"
}).html($("<div>", {
html: " "
})).appendTo($tr);
val = (new Function("if(" + comp.asString + "){return true}else{return false}"))();
if (val) {
$td.addClass("equal");
}
expression = " if (" + comp.asString + ") { /* " + (val ? 'executes' : 'does not execute') + " */ } ";
$("<td>", {
"class": "expression"
}).html(expression).appendTo($tr);
}
return $table;
};
rotateText = function(txt, cHeight) {
var c, canv;
if (cHeight == null) {
cHeight = 80;
}
canv = document.createElement("canvas");
canv.width = "25";
canv.height = cHeight;
c = canv.getContext("2d");
c.rotate(Math.PI / 2);
c.font = "15px Monospace";
c.textAlign = "right";
c.fillText(txt, cHeight, -10);
return canv;
};
}).call(this);