fixes #2073; language spec change: arrow like operators are not right associative anymore

This commit is contained in:
Araq
2015-02-08 13:37:22 +01:00
parent 52e297c4e1
commit c91ca82a43
3 changed files with 5 additions and 6 deletions

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@@ -198,8 +198,8 @@ proc isSigilLike(tok: TToken): bool {.inline.} =
proc isRightAssociative(tok: TToken): bool {.inline.} =
## Determines whether the token is right assocative.
result = tok.tokType == tkOpr and (tok.ident.s[0] == '^' or
(let L = tok.ident.s.len; L > 1 and tok.ident.s[L-1] == '>'))
result = tok.tokType == tkOpr and tok.ident.s[0] == '^'
# or (let L = tok.ident.s.len; L > 1 and tok.ident.s[L-1] == '>'))
proc getPrecedence(tok: TToken, strongSpaces: bool): int =
## Calculates the precedence of the given token.

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@@ -12,10 +12,8 @@ Binary operators have 11 different levels of precedence.
Associativity
-------------
Binary operators whose first character is ``^`` or its last character
is ``>`` are right-associative, all other binary operators are left-associative.
Exception: The single "greater than" ``>`` operator is left-associative too.
Binary operators whose first character is ``^`` are right-associative, all
other binary operators are left-associative.
Operators ending in ``>`` but longer than a single character are
called `arrow like`:idx:.

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@@ -20,6 +20,7 @@ News
``addHandler``, ``getHandlers``, ``setLogFilter`` and ``getLogFilter``
should be used instead.
- ``nim idetools`` has been replaced by a separate tool `nimsuggest`_.
- *arrow like* operators are not right associative anymore.
Language Additions