diff options
Diffstat (limited to 'compiler/pragmas.nim')
| -rw-r--r-- | compiler/pragmas.nim | 56 |
1 files changed, 41 insertions, 15 deletions
diff --git a/compiler/pragmas.nim b/compiler/pragmas.nim index a644639fe..9a298cd90 100644 --- a/compiler/pragmas.nim +++ b/compiler/pragmas.nim @@ -81,14 +81,14 @@ const wRequiresInit, wNoalias, wAlign, wNoInit} - {wExportNims, wNodecl} # why exclude these? varPragmas* = declPragmas + {wVolatile, wRegister, wThreadVar, wMagic, wHeader, wCompilerProc, wCore, wDynlib, - wNoInit, wCompileTime, wGlobal, + wNoInit, wCompileTime, wGlobal, wLiftLocals, wGensym, wInject, wCodegenDecl, wGuard, wGoto, wCursor, wNoalias, wAlign} constPragmas* = declPragmas + {wHeader, wMagic, wGensym, wInject, wIntDefine, wStrDefine, wBoolDefine, wDefine, wCompilerProc, wCore} - paramPragmas* = {wNoalias, wInject, wGensym, wByRef, wByCopy, wCodegenDecl} + paramPragmas* = {wNoalias, wInject, wGensym, wByRef, wByCopy, wCodegenDecl, wExportc, wExportCpp} letPragmas* = varPragmas procTypePragmas* = {FirstCallConv..LastCallConv, wVarargs, wNoSideEffect, wThread, wRaises, wEffectsOf, wLocks, wTags, wForbids, wGcSafe, @@ -156,16 +156,16 @@ proc pragmaEnsures(c: PContext, n: PNode) = proc setExternName(c: PContext; s: PSym, extname: string, info: TLineInfo) = # special cases to improve performance: if extname == "$1": - s.loc.r = rope(s.name.s) + s.loc.snippet = rope(s.name.s) elif '$' notin extname: - s.loc.r = rope(extname) + s.loc.snippet = rope(extname) else: try: - s.loc.r = rope(extname % s.name.s) + s.loc.snippet = rope(extname % s.name.s) except ValueError: localError(c.config, info, "invalid extern name: '" & extname & "'. (Forgot to escape '$'?)") when hasFFI: - s.cname = $s.loc.r + s.cname = $s.loc.snippet proc makeExternImport(c: PContext; s: PSym, extname: string, info: TLineInfo) = @@ -370,7 +370,7 @@ proc processDynLib(c: PContext, n: PNode, sym: PSym) = proc processNote(c: PContext, n: PNode) = template handleNote(enumVals, notes) = let x = findStr(enumVals.a, enumVals.b, n[0][1].ident.s, errUnknown) - if x != errUnknown: + if x != errUnknown: nk = TNoteKind(x) let x = c.semConstBoolExpr(c, n[1]) n[1] = x @@ -480,6 +480,18 @@ proc processOption(c: PContext, n: PNode, resOptions: var TOptions) = # calling conventions (boring...): localError(c.config, n.info, "option expected") +proc checkPushedPragma(c: PContext, n: PNode) = + let keyDeep = n.kind in nkPragmaCallKinds and n.len > 1 + var key = if keyDeep: n[0] else: n + if key.kind in nkIdentKinds: + let ident = considerQuotedIdent(c, key) + var userPragma = strTableGet(c.userPragmas, ident) + if userPragma == nil: + let k = whichKeyword(ident) + # TODO: might as well make a list which is not accepted by `push`: emit, cast etc. + if k == wEmit: + localError(c.config, n.info, "an 'emit' pragma cannot be pushed") + proc processPush(c: PContext, n: PNode, start: int) = if n[start-1].kind in nkPragmaCallKinds: localError(c.config, n.info, "'push' cannot have arguments") @@ -487,6 +499,7 @@ proc processPush(c: PContext, n: PNode, start: int) = for i in start..<n.len: if not tryProcessOption(c, n[i], c.config.options): # simply store it somewhere: + checkPushedPragma(c, n[i]) if x.otherPragmas.isNil: x.otherPragmas = newNodeI(nkPragma, n.info) x.otherPragmas.add n[i] @@ -787,13 +800,14 @@ proc pragmaGuard(c: PContext; it: PNode; kind: TSymKind): PSym = proc semCustomPragma(c: PContext, n: PNode, sym: PSym): PNode = var callNode: PNode - if n.kind in {nkIdent, nkSym}: + case n.kind + of nkIdentKinds: # pragma -> pragma() callNode = newTree(nkCall, n) - elif n.kind == nkExprColonExpr: + of nkExprColonExpr: # pragma: arg -> pragma(arg) callNode = newTree(nkCall, n[0], n[1]) - elif n.kind in nkPragmaCallKinds: + of nkPragmaCallKinds - {nkExprColonExpr}: callNode = n else: invalidPragma(c, n) @@ -869,6 +883,7 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int, # number of pragmas increase/decrease with user pragma expansion inc c.instCounter + defer: dec c.instCounter if c.instCounter > 100: globalError(c.config, it.info, "recursive dependency: " & userPragma.name.s) @@ -878,7 +893,6 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int, pragma(c, sym, userPragma.ast, validPragmas, isStatement) n.sons[i..i] = userPragma.ast.sons # expand user pragma with its content i.inc(userPragma.ast.len - 1) # inc by -1 is ok, user pragmas was empty - dec c.instCounter else: let k = whichKeyword(ident) if k in validPragmas: @@ -1001,7 +1015,7 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int, incl(sym.loc.flags, lfHeader) incl(sym.loc.flags, lfNoDecl) # implies nodecl, because otherwise header would not make sense - if sym.loc.r == "": sym.loc.r = rope(sym.name.s) + if sym.loc.snippet == "": sym.loc.snippet = rope(sym.name.s) of wNoSideEffect: noVal(c, it) if sym != nil: @@ -1295,7 +1309,8 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int, noVal(c, it) if sym == nil: invalidPragma(c, it) else: sym.flags.incl sfUsed - of wLiftLocals: discard + of wLiftLocals: + sym.flags.incl(sfForceLift) of wRequires, wInvariant, wAssume, wAssert: pragmaProposition(c, it) of wEnsures: @@ -1329,6 +1344,16 @@ proc mergePragmas(n, pragmas: PNode) = else: for p in pragmas: n[pragmasPos].add p +proc mergeValidPragmas(n, pragmas: PNode, validPragmas: TSpecialWords) = + if n[pragmasPos].kind == nkEmpty: + n[pragmasPos] = newNodeI(nkPragma, n.info) + for p in pragmas: + let prag = whichPragma(p) + if prag in validPragmas: + let copy = copyTree(p) + overwriteLineInfo copy, n.info + n[pragmasPos].add copy + proc implicitPragmas*(c: PContext, sym: PSym, info: TLineInfo, validPragmas: TSpecialWords) = if sym != nil and sym.kind != skModule: @@ -1342,7 +1367,8 @@ proc implicitPragmas*(c: PContext, sym: PSym, info: TLineInfo, internalError(c.config, info, "implicitPragmas") inc i popInfoContext(c.config) - if sym.kind in routineKinds and sym.ast != nil: mergePragmas(sym.ast, o) + if sym.kind in routineKinds and sym.ast != nil: + mergeValidPragmas(sym.ast, o, validPragmas) if lfExportLib in sym.loc.flags and sfExportc notin sym.flags: localError(c.config, info, ".dynlib requires .exportc") @@ -1351,7 +1377,7 @@ proc implicitPragmas*(c: PContext, sym: PSym, info: TLineInfo, sfImportc in sym.flags and lib != nil: incl(sym.loc.flags, lfDynamicLib) addToLib(lib, sym) - if sym.loc.r == "": sym.loc.r = rope(sym.name.s) + if sym.loc.snippet == "": sym.loc.snippet = rope(sym.name.s) proc hasPragma*(n: PNode, pragma: TSpecialWord): bool = if n == nil: return false |