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Reduced the time it takes to build the grammar from 80 seconds to 15, by consolidating Operation terminals by precedence level.

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Jeremy Ashkenas
2010-08-11 22:24:43 -04:00
parent d704afa0e9
commit 8c45aa480b
7 changed files with 136 additions and 237 deletions
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78
src/grammar.coffee
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@@ -520,65 +520,31 @@ grammar =
# -type rule, but in order to make the precedence binding possible, separate
# rules are necessary.
Operation: [
o "! Expression", -> new OpNode '!', $2
o "!! Expression", -> new OpNode '!!', $2
o("- Expression", (-> new OpNode('-', $2)), {prec: 'UMINUS'})
o("+ Expression", (-> new OpNode('+', $2)), {prec: 'UPLUS'})
o "~ Expression", -> new OpNode '~', $2
o "UNARY Expression", -> new OpNode $1, $2
o("- Expression", (-> new OpNode('-', $2)), {prec: 'UNARY'})
o("+ Expression", (-> new OpNode('+', $2)), {prec: 'UNARY'})
o "-- Expression", -> new OpNode '--', $2
o "++ Expression", -> new OpNode '++', $2
o "DELETE Expression", -> new OpNode 'delete', $2
o "TYPEOF Expression", -> new OpNode 'typeof', $2
o "Expression --", -> new OpNode '--', $1, null, true
o "Expression ++", -> new OpNode '++', $1, null, true
o "Expression * Expression", -> new OpNode '*', $1, $3
o "Expression / Expression", -> new OpNode '/', $1, $3
o "Expression % Expression", -> new OpNode '%', $1, $3
o "Expression + Expression", -> new OpNode '+', $1, $3
o "Expression - Expression", -> new OpNode '-', $1, $3
o "Expression << Expression", -> new OpNode '<<', $1, $3
o "Expression >> Expression", -> new OpNode '>>', $1, $3
o "Expression >>> Expression", -> new OpNode '>>>', $1, $3
o "Expression & Expression", -> new OpNode '&', $1, $3
o "Expression | Expression", -> new OpNode '|', $1, $3
o "Expression ^ Expression", -> new OpNode '^', $1, $3
o "Expression <<= Expression", -> new OpNode '<<=', $1, $3
o "Expression >>= Expression", -> new OpNode '>>=', $1, $3
o "Expression >>>= Expression", -> new OpNode '>>>=', $1, $3
o "Expression &= Expression", -> new OpNode '&=', $1, $3
o "Expression |= Expression", -> new OpNode '|=', $1, $3
o "Expression ^= Expression", -> new OpNode '^=', $1, $3
o "Expression <= Expression", -> new OpNode '<=', $1, $3
o "Expression < Expression", -> new OpNode '<', $1, $3
o "Expression > Expression", -> new OpNode '>', $1, $3
o "Expression >= Expression", -> new OpNode '>=', $1, $3
o "Expression == Expression", -> new OpNode '==', $1, $3
o "Expression != Expression", -> new OpNode '!=', $1, $3
o "Expression && Expression", -> new OpNode '&&', $1, $3
o "Expression || Expression", -> new OpNode '||', $1, $3
o "Expression OP? Expression", -> new OpNode '?', $1, $3
o "Expression -= Expression", -> new OpNode '-=', $1, $3
o "Expression += Expression", -> new OpNode '+=', $1, $3
o "Expression /= Expression", -> new OpNode '/=', $1, $3
o "Expression *= Expression", -> new OpNode '*=', $1, $3
o "Expression %= Expression", -> new OpNode '%=', $1, $3
o "Expression ||= Expression", -> new OpNode '||=', $1, $3
o "Expression &&= Expression", -> new OpNode '&&=', $1, $3
o "Expression ?= Expression", -> new OpNode '?=', $1, $3
o "Expression MATH Expression", -> new OpNode $2, $1, $3
o "Expression SHIFT Expression", -> new OpNode $2, $1, $3
o "Expression COMPARE Expression", -> new OpNode $2, $1, $3
o "Expression LOGIC Expression", -> new OpNode $2, $1, $3
o "Expression COMPOUND_ASSIGN Expression", -> new OpNode $2, $1, $3
o "Expression INSTANCEOF Expression", -> new OpNode 'instanceof', $1, $3
o "Expression IN Expression", -> new InNode $1, $3
o "Expression OF Expression", -> new OpNode 'in', $1, $3
o "Expression ! IN Expression", -> new OpNode '!', new InNode $1, $4
o "Expression ! OF Expression", -> new OpNode '!', new ParentheticalNode new OpNode 'in', $1, $4
o "Expression UNARY IN Expression", -> new OpNode $2, new InNode $1, $4
o "Expression UNARY OF Expression", -> new OpNode $2, new ParentheticalNode new OpNode 'in', $1, $4
]
@@ -595,22 +561,20 @@ grammar =
# (2 + 3) * 4
operators = [
["left", '?']
["nonassoc", 'UMINUS', 'UPLUS', '!', '!!', '~', '++', '--']
["left", '*', '/', '%']
["nonassoc", '++', '--']
["right", 'UNARY']
["left", 'MATH']
["left", '+', '-']
["left", '<<', '>>', '>>>']
["left", '<=', '<', '>', '>=']
["right", 'DELETE', 'INSTANCEOF', 'TYPEOF']
["left", 'SHIFT']
["left", 'COMPARE']
["left", 'INSTANCEOF']
["left", '==', '!=']
["left", '&', '|', '^']
["left", '&&', '||', 'OP?']
["right", '-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=', '<<=', '>>=', '>>>=', '&=', '^=', '|=']
["left", 'LOGIC']
["right", 'COMPOUND_ASSIGN']
["left", '.']
["right", 'INDENT']
["left", 'OUTDENT']
["nonassoc", 'INDENT', 'OUTDENT']
["right", 'WHEN', 'LEADING_WHEN', 'IN', 'OF', 'BY', 'THROW']
["right", 'IF', 'UNLESS', 'ELSE', 'FOR', 'WHILE', 'UNTIL', 'LOOP', 'NEW', 'SUPER', 'CLASS']
["left", 'EXTENDS']
["right", 'IF', 'UNLESS', 'ELSE', 'FOR', 'WHILE', 'UNTIL', 'LOOP', 'NEW', 'SUPER', 'CLASS', 'EXTENDS']
["right", '=', ':', 'RETURN']
["right", '->', '=>', 'UNLESS', 'POST_IF', 'POST_UNLESS']
]