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non-nil AST; continue after errors for IDE support

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This commit is contained in:
Araq 2011-02-12 19:24:20 +01:00
commit 5b28d08203
84 changed files with 678 additions and 722 deletions
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15
rod/semfold.nim
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@ -334,8 +334,10 @@ proc getConstExpr(m: PSym, n: PNode): PNode =
of mSizeOf:
var a = n.sons[1]
if computeSize(a.typ) < 0:
liMessage(a.info, errCannotEvalXBecauseIncompletelyDefined, "sizeof")
if a.typ.kind in {tyArray, tyObject, tyTuple}:
LocalError(a.info, errCannotEvalXBecauseIncompletelyDefined,
"sizeof")
result = nil
elif a.typ.kind in {tyArray, tyObject, tyTuple}:
result = nil
# XXX: size computation for complex types is still wrong
else:
@ -345,7 +347,8 @@ proc getConstExpr(m: PSym, n: PNode): PNode =
of mHigh:
if not (skipTypes(n.sons[1].typ, abstractVar).kind in
{tyOpenArray, tySequence, tyString}):
result = newIntNodeT(lastOrd(skipTypes(n.sons[1].typ, abstractVar)), n)
result = newIntNodeT(lastOrd(skipTypes(n.sons[1].typ, abstractVar)),
n)
of mLengthOpenArray:
var a = n.sons[1]
if a.kind == nkPassAsOpenArray: a = a.sons[0]
@ -357,9 +360,9 @@ proc getConstExpr(m: PSym, n: PNode): PNode =
else:
result = magicCall(m, n)
except EOverflow:
liMessage(n.info, errOverOrUnderflow)
LocalError(n.info, errOverOrUnderflow)
except EDivByZero:
liMessage(n.info, errConstantDivisionByZero)
LocalError(n.info, errConstantDivisionByZero)
of nkAddr:
var a = getConstExpr(m, n.sons[0])
if a != nil:
@ -408,7 +411,7 @@ proc getConstExpr(m: PSym, n: PNode): PNode =
result = a # a <= x and x <= b
result.typ = n.typ
else:
liMessage(n.info, errGenerated, `%`(
LocalError(n.info, errGenerated, `%`(
msgKindToString(errIllegalConvFromXtoY),
[typeToString(n.sons[0].typ), typeToString(n.typ)]))
of nkStringToCString, nkCStringToString: