This commit is contained in:
Araq
2014-03-22 22:59:23 +01:00
parent 5f64d7a353
commit b76d2eac7f
3 changed files with 14 additions and 8 deletions

View File

@@ -1279,7 +1279,8 @@ proc leftBindingPower(p : var TParser, tok : ref TToken) : int =
of pxComma:
return 10
# throw == 20
of pxAsgn, pxPlusAsgn, pxMinusAsgn, pxStarAsgn, pxSlashAsgn, pxModAsgn, pxShlAsgn, pxShrAsgn, pxAmpAsgn, pxHatAsgn, pxBarAsgn:
of pxAsgn, pxPlusAsgn, pxMinusAsgn, pxStarAsgn, pxSlashAsgn, pxModAsgn,
pxShlAsgn, pxShrAsgn, pxAmpAsgn, pxHatAsgn, pxBarAsgn:
return 30
of pxConditional:
return 40

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@@ -94,6 +94,8 @@ proc semGenericStmt(c: PContext, n: PNode,
let luf = if withinMixin notin flags: {checkUndeclared} else: {}
var s = qualifiedLookUp(c, n, luf)
if s != nil: result = semGenericStmtSymbol(c, n, s)
else:
# XXX for example: ``result.add`` -- ``add`` needs to be looked up here...
of nkEmpty, nkSym..nkNilLit:
# see tests/compile/tgensymgeneric.nim:

View File

@@ -499,18 +499,21 @@ other binary operators are left-associative.
Precedence
----------
For operators that are not keywords the precedence is determined by the
following rules:
Unary operators always bind stronger than any binary
operator: ``$a + b`` is ``($a) + b`` and not ``$(a + b)``.
If an unary operator's relevant character is ``@`` it is a `sigil-like`:idx:
operator which binds stronger than a ``primarySuffix``: ``@x.abc`` is parsed
as ``(@x).abc`` whereas ``$x.abc`` is parsed as ``$(x.abc)``.
For binary operators that are not keywords the precedence is determined by the
following rules:
If the operator ends with ``=`` and its relevant character is none of
``<``, ``>``, ``!``, ``=``, ``~``, ``?``, it is an *assignment operator* which
has the lowest precedence.
If the operator's relevant character is ``@`` it is a `sigil-like`:idx:
operator which binds stronger than a ``primarySuffix``: ``@x.abc`` is parsed
as ``(@x).abc`` whereas ``$x.abc`` is parsed as ``$(x.abc)``.
Otherwise precedence is determined by the relevant character.
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