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explicit default values for a leaner codegen, .cursor variables for optimization

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This commit is contained in:
Andreas Rumpf 2019-03-07 00:37:23 +01:00
commit f8bf24623c
7 changed files with 172 additions and 46 deletions
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11
compiler/pragmas.nim
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@ -24,7 +24,7 @@ const
wCompilerProc, wNonReloadable, wCore, wProcVar, wDeprecated, wVarargs, wCompileTime, wMerge,
wBorrow, wExtern, wImportCompilerProc, wThread, wImportCpp, wImportObjC,
wAsmNoStackFrame, wError, wDiscardable, wNoInit, wCodegenDecl,
wGensym, wInject, wRaises, wTags, wLocks, wDelegator, wGcSafe, wOverride,
wGensym, wInject, wRaises, wTags, wLocks, wDelegator, wGcSafe,
wConstructor, wExportNims, wUsed, wLiftLocals, wStacktrace, wLinetrace}
converterPragmas* = procPragmas
methodPragmas* = procPragmas+{wBase}-{wImportCpp}
@ -64,7 +64,7 @@ const
varPragmas* = {wImportc, wExportc, wVolatile, wRegister, wThreadVar, wNodecl,
wMagic, wHeader, wDeprecated, wCompilerProc, wCore, wDynlib, wExtern,
wImportCpp, wImportObjC, wError, wNoInit, wCompileTime, wGlobal,
wGensym, wInject, wCodegenDecl, wGuard, wGoto, wExportNims, wUsed}
wGensym, wInject, wCodegenDecl, wGuard, wGoto, wExportNims, wUsed, wCursor}
constPragmas* = {wImportc, wExportc, wHeader, wDeprecated, wMagic, wNodecl,
wExtern, wImportCpp, wImportObjC, wError, wGensym, wInject, wExportNims,
wIntDefine, wStrDefine, wBoolDefine, wUsed, wCompilerProc, wCore}
@ -863,8 +863,6 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int,
incl(sym.loc.flags, lfNoDecl)
# implies nodecl, because otherwise header would not make sense
if sym.loc.r == nil: sym.loc.r = rope(sym.name.s)
of wOverride:
sym.flags.incl sfOverriden
of wNosideeffect:
noVal(c, it)
if sym != nil:
@ -1091,6 +1089,11 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int,
invalidPragma(c, it)
else:
sym.flags.incl sfGoto
of wCursor:
if sym == nil or sym.kind notin {skVar, skLet}:
invalidPragma(c, it)
else:
sym.flags.incl sfCursor
of wExportNims:
if sym == nil: invalidPragma(c, it)
else: magicsys.registerNimScriptSymbol(c.graph, sym)