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static params: expr[T] is now static[T]

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This introduces tyStatic and successfully bootstraps and handles
few simple test cases.  Static params within macros are no longer
treated as PNimrodNodes - they are now equivalent to constants
of the designated type.
This commit is contained in:
Zahary Karadjov 2013-12-19 01:06:38 +02:00
commit 027f30610e
22 changed files with 135 additions and 110 deletions
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7
compiler/evals.nim
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@ -91,6 +91,7 @@ proc evalMacroCall*(c: PEvalContext, n, nOrig: PNode, sym: PSym): PNode
proc evalAux(c: PEvalContext, n: PNode, flags: TEvalFlags): PNode
proc raiseCannotEval(c: PEvalContext, info: TLineInfo): PNode =
if defined(debug): writeStackTrace()
result = newNodeI(nkExceptBranch, info)
# creating a nkExceptBranch without sons
# means that it could not be evaluated
@ -263,8 +264,8 @@ proc getNullValue(typ: PType, info: TLineInfo): PNode =
result = newNodeIT(nkUIntLit, info, t)
of tyFloat..tyFloat128:
result = newNodeIt(nkFloatLit, info, t)
of tyVar, tyPointer, tyPtr, tyRef, tyCString, tySequence, tyString, tyExpr,
tyStmt, tyTypeDesc, tyProc:
of tyVar, tyPointer, tyPtr, tyRef, tyCString, tySequence, tyString, tyExpr,
tyStmt, tyTypeDesc, tyStatic, tyProc:
result = newNodeIT(nkNilLit, info, t)
of tyObject:
result = newNodeIT(nkPar, info, t)
@ -358,7 +359,7 @@ proc evalVar(c: PEvalContext, n: PNode): PNode =
proc aliasNeeded(n: PNode, flags: TEvalFlags): bool =
result = efLValue in flags or n.typ == nil or
n.typ.kind in {tyExpr, tyStmt, tyTypeDesc}
n.typ.kind in {tyExpr, tyStatic, tyStmt, tyTypeDesc}
proc evalVariable(c: PStackFrame, sym: PSym, flags: TEvalFlags): PNode =
# We need to return a node to the actual value,