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make goto based exceptions available for 'nim cpp' (#13244)

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* make goto based exceptions available for 'nim cpp'
* optimize seq.add to be comparable to C++'s emplace_back
This commit is contained in:
Andreas Rumpf 2020-01-25 20:00:13 +01:00 • committed by GitHub
commit 6efac70181
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11 changed files with 29 additions and 18 deletions
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compiler/vm.nim
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@ -2187,7 +2187,6 @@ proc evalConstExprAux(module: PSym;
setupGlobalCtx(module, g)
var c = PCtx g.vm
let oldMode = c.mode
defer: c.mode = oldMode
c.mode = mode
let start = genExpr(c, n, requiresValue = mode!=emStaticStmt)
if c.code[start].opcode == opcEof: return newNodeI(nkEmpty, n.info)
@ -2198,6 +2197,7 @@ proc evalConstExprAux(module: PSym;
#for i in 0..<c.prc.maxSlots: tos.slots[i] = newNode(nkEmpty)
result = rawExecute(c, start, tos).regToNode
if result.info.col < 0: result.info = n.info
c.mode = oldMode
proc evalConstExpr*(module: PSym; g: ModuleGraph; e: PNode): PNode =
result = evalConstExprAux(module, g, nil, e, emConst)