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jashkenas--coffeescript
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Fixing #761. p -1 now translates to p(-1), not p - 1. Same with +.

This commit is contained in:
Timothy Jones 2010-10-20 04:52:07 +13:00
parent 262d796356
commit 0e395569ee
3 changed files with 22 additions and 8 deletions
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7
lib/rewriter.js
View File

@ -1,5 +1,5 @@
(function() {
var BALANCED_PAIRS, EXPRESSION_CLOSE, EXPRESSION_END, EXPRESSION_START, IMPLICIT_BLOCK, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, INVERSES, LINEBREAKS, SINGLE_CLOSERS, SINGLE_LINERS, _i, _len, _ref, include, left, rite;
var BALANCED_PAIRS, EXPRESSION_CLOSE, EXPRESSION_END, EXPRESSION_START, IMPLICIT_BLOCK, IMPLICIT_CALL, IMPLICIT_END, IMPLICIT_FUNC, IMPLICIT_UNSPACED_CALL, INVERSES, LINEBREAKS, SINGLE_CLOSERS, SINGLE_LINERS, _i, _len, _ref, include, left, rite;
include = require('./helpers').include;
exports.Rewriter = (function() {
function Rewriter() {
@ -197,7 +197,7 @@
if (prev && !prev.spaced && tag === '?') {
token.call = true;
}
if (!(callObject || ((prev != null) ? prev.spaced : undefined) && (prev.call || include(IMPLICIT_FUNC, prev[0])) && include(IMPLICIT_CALL, tag))) {
if (!(callObject || ((prev != null) ? prev.spaced : undefined) && (prev.call || include(IMPLICIT_FUNC, prev[0])) && (include(IMPLICIT_CALL, tag) || include(IMPLICIT_UNSPACED_CALL, tag) && !token.spaced))) {
return 1;
}
tokens.splice(i, 0, ['CALL_START', '(', token[2]]);
@ -368,7 +368,8 @@
}
EXPRESSION_CLOSE = ['CATCH', 'WHEN', 'ELSE', 'FINALLY'].concat(EXPRESSION_END);
IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '@', 'THIS'];
IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'CLASS', 'IF', 'UNLESS', 'TRY', 'SWITCH', 'THIS', 'BOOL', 'UNARY', '@', '->', '=>', '[', '(', '{'];
IMPLICIT_CALL = ['IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'CLASS', 'IF', 'UNLESS', 'TRY', 'SWITCH', 'THIS', 'BOOL', 'UNARY', '@', '->', '=>', '[', '(', '{', '--', '++'];
IMPLICIT_UNSPACED_CALL = ['+', '-'];
IMPLICIT_BLOCK = ['->', '=>', '{', '[', ','];
IMPLICIT_END = ['POST_IF', 'POST_UNLESS', 'FOR', 'WHILE', 'UNTIL', 'LOOP', 'TERMINATOR', 'INDENT'];
SINGLE_LINERS = ['ELSE', '->', '=>', 'TRY', 'FINALLY', 'THEN'];

6
src/rewriter.coffee
View File

@ -168,7 +168,7 @@ class exports.Rewriter
token.call = yes if prev and not prev.spaced and tag is '?'
return 1 unless callObject or
prev?.spaced and (prev.call or include(IMPLICIT_FUNC, prev[0])) and
include(IMPLICIT_CALL, tag)
(include(IMPLICIT_CALL, tag) or include(IMPLICIT_UNSPACED_CALL, tag) and not token.spaced)
tokens.splice i, 0, ['CALL_START', '(', token[2]]
@detectEnd i + (if callObject then 2 else 1), (token, i) ->
return yes if not seenSingle and token.fromThen
@ -329,9 +329,11 @@ IMPLICIT_FUNC = ['IDENTIFIER', 'SUPER', ')', 'CALL_END', ']', 'INDEX_END', '@
IMPLICIT_CALL = [
'IDENTIFIER', 'NUMBER', 'STRING', 'JS', 'REGEX', 'NEW', 'PARAM_START', 'CLASS'
'IF', 'UNLESS', 'TRY', 'SWITCH', 'THIS', 'BOOL', 'UNARY',
'@', '->', '=>', '[', '(', '{'
'@', '->', '=>', '[', '(', '{', '--', '++'
]
IMPLICIT_UNSPACED_CALL = ['+', '-']
# Tokens indicating that the implicit call must enclose a block of expressions.
IMPLICIT_BLOCK = ['->', '=>', '{', '[', ',']

17
test/test_functions.coffee
View File

@ -317,19 +317,30 @@ func = ->
eq func(), 101
#619: `new` shouldn't add extra parens
# `new` shouldn't add extra parens
ok new Date().constructor is Date
#717: `new` works against bare function
# `new` works against bare function
eq Date, new ->
eq this, new => this
Date
#751: Implicit objects with number arguments.
# Implicit objects with number arguments.
func = (x, y) -> y
obj =
prop: func "a", 1
ok obj.prop is 1
# Non-spaced unary and binary operators should cause a function call.
func = (val) -> val + 1
ok (func +5) is 6
ok (func -5) is -4
# Prefix unary assignment operators are allowed in parenless calls.
val = 5
ok (func --val) is 5