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Last change
on this file since 256 was
256,
checked in by hendrikvanantwerpen, 13 years ago
|
|
Reworked project structure based on REST interaction and Dojo library. As
soon as this is stable, the old jQueryUI branch can be removed (it's
kept for reference).
|
-
Property svn:executable set to
*
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|
File size:
836 bytes
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| Line | |
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| 1 | (function (tree) { |
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| 2 | |
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| 3 | tree.Operation = function (op, operands) { |
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| 4 | this.op = op.trim(); |
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| 5 | this.operands = operands; |
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| 6 | }; |
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| 7 | tree.Operation.prototype.eval = function (env) { |
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| 8 | var a = this.operands[0].eval(env), |
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| 9 | b = this.operands[1].eval(env), |
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| 10 | temp; |
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| 11 | |
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| 12 | if (a instanceof tree.Dimension && b instanceof tree.Color) { |
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| 13 | if (this.op === '*' || this.op === '+') { |
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| 14 | temp = b, b = a, a = temp; |
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| 15 | } else { |
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| 16 | throw { name: "OperationError", |
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| 17 | message: "Can't substract or divide a color from a number" }; |
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| 18 | } |
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| 19 | } |
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| 20 | return a.operate(this.op, b); |
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| 21 | }; |
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| 22 | |
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| 23 | tree.operate = function (op, a, b) { |
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| 24 | switch (op) { |
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| 25 | case '+': return a + b; |
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| 26 | case '-': return a - b; |
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| 27 | case '*': return a * b; |
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| 28 | case '/': return a / b; |
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| 29 | } |
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| 30 | }; |
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| 31 | |
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| 32 | })(require('less/tree')); |
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