scratchfoundation/paper.js
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Clean up and improve PaperScript code a bit.

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This commit is contained in:
Jürg Lehni 2012-11-02 15:58:41 -07:00
parent c227d589ca
commit ee65ee1026
1 changed files with 8 additions and 8 deletions
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16
src/core/PaperScript.js
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@ -37,7 +37,7 @@ var PaperScript = this.PaperScript = new function() {
var handler = operators[operator];
if (left && left[handler]) {
var res = left[handler](right);
return operator == '!=' ? !res : res;
return operator === '!=' ? !res : res;
}
switch (operator) {
case '+': return left + right;
@ -50,7 +50,7 @@ var PaperScript = this.PaperScript = new function() {
default:
throw new Error('Implement Operator: ' + operator);
}
};
}
// Sign Operators
@ -109,8 +109,8 @@ var PaperScript = this.PaperScript = new function() {
// Handle simple mathematical operators here:
return handleOperator(operator, left = walk(left),
right = walk(right))
// Always return something since we're walking left and
// right for the handleOperator() call already.
// Always return a new AST for this node, since we have
// processed left and right int he call above!
|| [this[0], operator, left, right];
},
@ -121,10 +121,10 @@ var PaperScript = this.PaperScript = new function() {
// of handleOperator on the right hand side.
var res = handleOperator(operator, left = walk(left),
right = walk(right));
if (res)
return [this[0], true, left, res];
// Always return something for the same reason as in binary
return [this[0], operator, left, right];
return res
? [this[0], true, left, res]
// Always return a new AST for the same reason as in binary
: [this[0], operator, left, right];
},
'unary-prefix': function(operator, exp) {