pegjs

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David Majda 42d4fc6dd4 Get rid of two parser variable stacks One stack is conceptually simpler, requires less code and will make a transition to a register-based machine easier. Note that the stack variables are now named a bit incorrectly (\|result0\|, \|result1\|, etc. even when they store also parse positions). I didn't bother with renaming because a transition to a register-based machine will follow soon and the names will change anyway. The speed/size impact is insignificant. Speed impact ------------ Before: 839.05 kB/s After: 839.67 kB/s Difference: 0.07% Size impact ----------- Before: 949783 b After: 961578 b Difference: 1.24% (Measured by /tools/impact with Node.js v0.6.18 on x86_64 GNU/Linux.)	12 years ago
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passes	Get rid of two parser variable stacks	12 years ago

David Majda 42d4fc6dd4 Get rid of two parser variable stacks

One stack is conceptually simpler, requires less code and will make a
transition to a register-based machine easier.

Note that the stack variables are now named a bit incorrectly
(|result0|, |result1|, etc. even when they store also parse positions).
I didn't bother with renaming because a transition to a register-based
machine will follow soon and the names will change anyway.

The speed/size impact is insignificant.

Speed impact
------------
Before:     839.05 kB/s
After:      839.67 kB/s
Difference: 0.07%

Size impact
-----------
Before:     949783 b
After:      961578 b
Difference: 1.24%

(Measured by /tools/impact with Node.js v0.6.18 on x86_64 GNU/Linux.)

passes

Get rid of two parser variable stacks