diff options
Diffstat (limited to 'compiler/cgendata.nim')
| -rw-r--r-- | compiler/cgendata.nim | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/compiler/cgendata.nim b/compiler/cgendata.nim index 508f98074..187186373 100644 --- a/compiler/cgendata.nim +++ b/compiler/cgendata.nim @@ -9,11 +9,13 @@ ## This module contains the data structures for the C code generation phase. -import +import ast, astalgo, ropes, passes, options, intsets, lists, platform +from msgs import TLineInfo + type - TLabel* = PRope # for the C generator a label is just a rope + TLabel* = Rope # for the C generator a label is just a rope TCFileSection* = enum # the sections a generated C file consists of cfsMergeInfo, # section containing merge information cfsHeaders, # section for C include file headers @@ -43,34 +45,35 @@ type ctUInt, ctUInt8, ctUInt16, ctUInt32, ctUInt64, ctArray, ctPtrToArray, ctStruct, ctPtr, ctNimStr, ctNimSeq, ctProc, ctCString - TCFileSections* = array[TCFileSection, PRope] # represents a generated C file + TCFileSections* = array[TCFileSection, Rope] # represents a generated C file TCProcSection* = enum # the sections a generated C proc consists of cpsLocals, # section of local variables for C proc cpsInit, # section for init of variables for C proc cpsStmts # section of local statements for C proc - TCProcSections* = array[TCProcSection, PRope] # represents a generated C proc + TCProcSections* = array[TCProcSection, Rope] # represents a generated C proc BModule* = ref TCGen BProc* = ref TCProc - TBlock*{.final.} = object + TBlock*{.final.} = object id*: int # the ID of the label; positive means that it - label*: PRope # generated text for the label + label*: Rope # generated text for the label # nil if label is not used sections*: TCProcSections # the code beloging isLoop*: bool # whether block is a loop nestedTryStmts*: int16 # how many try statements is it nested into nestedExceptStmts*: int16 # how many except statements is it nested into frameLen*: int16 - + TCProc{.final.} = object # represents C proc that is currently generated prc*: PSym # the Nim proc that this C proc belongs to beforeRetNeeded*: bool # true iff 'BeforeRet' label for proc is needed threadVarAccessed*: bool # true if the proc already accessed some threadvar + lastLineInfo*: TLineInfo # to avoid generating excessive 'nimln' statements nestedTryStmts*: seq[PNode] # in how many nested try statements we are # (the vars must be volatile then) inExceptBlock*: int # are we currently inside an except block? # leaving such scopes by raise or by return must # execute any applicable finally blocks - finallySafePoints*: seq[PRope] # For correctly cleaning up exceptions when + finallySafePoints*: seq[Rope] # For correctly cleaning up exceptions when # using return in finally statements labels*: Natural # for generating unique labels in the C proc blocks*: seq[TBlock] # nested blocks @@ -82,9 +85,12 @@ type maxFrameLen*: int # max length of frame descriptor module*: BModule # used to prevent excessive parameter passing withinLoop*: int # > 0 if we are within a loop + splitDecls*: int # > 0 if we are in some context for C++ that + # requires 'T x = T()' to become 'T x; x = T()' + # (yes, C++ is weird like that) gcFrameId*: Natural # for the GC stack marking - gcFrameType*: PRope # the struct {} we put the GC markers into - + gcFrameType*: Rope # the struct {} we put the GC markers into + TTypeSeq* = seq[PType] TCGen = object of TPassContext # represents a C source file module*: PSym @@ -112,24 +118,24 @@ type dataCache*: TNodeTable forwardedProcs*: TSymSeq # keep forwarded procs here typeNodes*, nimTypes*: int # used for type info generation - typeNodesName*, nimTypesName*: PRope # used for type info generation + typeNodesName*, nimTypesName*: Rope # used for type info generation labels*: Natural # for generating unique module-scope names - extensionLoaders*: array['0'..'9', PRope] # special procs for the + extensionLoaders*: array['0'..'9', Rope] # special procs for the # OpenGL wrapper - injectStmt*: PRope + injectStmt*: Rope var - mainModProcs*, mainModInit*, otherModsInit*, mainDatInit*: PRope + mainModProcs*, mainModInit*, otherModsInit*, mainDatInit*: Rope # varuious parts of the main module - gMapping*: PRope # the generated mapping file (if requested) + gMapping*: Rope # the generated mapping file (if requested) gModules*: seq[BModule] = @[] # list of all compiled modules gForwardedProcsCounter*: int = 0 -proc s*(p: BProc, s: TCProcSection): var PRope {.inline.} = +proc s*(p: BProc, s: TCProcSection): var Rope {.inline.} = # section in the current block result = p.blocks[p.blocks.len - 1].sections[s] -proc procSec*(p: BProc, s: TCProcSection): var PRope {.inline.} = +proc procSec*(p: BProc, s: TCProcSection): var Rope {.inline.} = # top level proc sections result = p.blocks[0].sections[s] @@ -137,7 +143,7 @@ proc bmod*(module: PSym): BModule = # obtains the BModule for a given module PSym result = gModules[module.position] -proc newProc*(prc: PSym, module: BModule): BProc = +proc newProc*(prc: PSym, module: BModule): BProc = new(result) result.prc = prc result.module = module |