Files from TOPS-20 <mdl.comp>.

[pdp10-muddle.git] / <mdl.comp> / notana.mud.116

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+<PACKAGE "NOTANA">
+
+<ENTRY NOT-ANA TYPE?-ANA ==?-ANA>
+
+<USE "SYMANA" "CHKDCL" "COMPDEC" "CARANA" "ADVMESS">
+
+
+"      This module contains analysis and generation functions for
+NOT, TYPE? and ==?.  See SYMANA for more details about ANALYSIS and
+CODGEN for more detali abour code generation.
+"
+
+"Analyze NOT usage make sure arg can be FALSE."
+
+<DEFINE NOT-ANA (NOD RTYP
+                "AUX" TEM (FLG <==? .PRED <PARENT .NOD>>) (STR .TRUTH)
+                      (SUNT .UNTRUTH))
+       #DECL ((NOD) NODE)
+       <PROG ((PRED <AND .FLG .NOD>) (TRUTH ()) (UNTRUTH ()))
+             #DECL ((PRED) <SPECIAL ANY> (TRUTH UNTRUTH) <SPECIAL LIST>)
+             <COND (<SET TEM <SEGFLUSH .NOD .RTYP>> <SET FLG <>>)
+                   (ELSE
+                    <OR <1? <LENGTH <KIDS .NOD>>>
+                            <MESSAGE ERROR "WRONG NUMBER OF ARGS TO  NOT " .NOD>>
+                    <SET TEM <ANA <1 <KIDS .NOD>> ANY>>
+                    <PUT .NOD ,NODE-TYPE ,NOT-CODE>
+                    <SET TEM
+                         <COND (<==? <ISTYPE? .TEM> FALSE>
+                                <TYPE-OK? ATOM .RTYP>)
+                               (<TYPE-OK? .TEM FALSE>
+                                <TYPE-OK? '<OR FALSE ATOM> .RTYP>)
+                               (ELSE <TYPE-OK? FALSE .RTYP>)>>
+                    <SET STR .UNTRUTH>
+                    <SET SUNT .TRUTH>)>>
+       <COND (.FLG
+              <SET TRUTH (!.STR !.TRUTH)>
+              <SET UNTRUTH (!.SUNT !.UNTRUTH)>)>
+       .TEM>
+
+<PUT ,NOT ANALYSIS ,NOT-ANA>
+
+"      Analyze N==? and ==? usage.  Complain if types differ such that
+ the args  can never be ==?."
+
+<DEFINE ==?-ANA (NOD RTYP
+                "AUX" (K <KIDS .NOD>)
+                      (WHON <AND <==? .PRED <PARENT .NOD>> .NOD>) (WHO ())
+                      (GLN .NOD) (GLE ()))
+       #DECL ((NOD) NODE (K) <LIST [REST NODE]> (WHON GLN) <SPECIAL NODE>
+              (WHO GLE) <SPECIAL LIST>)
+       <COND (<SEGFLUSH .NOD .RTYP>)
+             (ELSE
+              <ARGCHK 2 <LENGTH .K> ==?>
+              <ANA <1 .K> ANY>
+              <ANA <2 .K> ANY>
+              <PUT .NOD ,NODE-TYPE ,EQ-CODE>
+              <COND (<AND <==? <ISTYPE? <RESULT-TYPE <1 .K>>> FIX>
+                          <==? <ISTYPE? <RESULT-TYPE <2 .K>>> FIX>>
+                     <PUT .NOD ,NODE-TYPE ,TEST-CODE>
+                     <HACK-BOUNDS .WHO .GLE .NOD .K>)>
+              <TYPE-OK? '<OR FALSE ATOM> .RTYP>)>>
+
+<PUT ,==? ANALYSIS ,==?-ANA>
+
+<PUT ,N==? ANALYSIS ,==?-ANA>
+
+"      Ananlyze TYPE? usage warn about any potential losers by using
+TYPE-OK?. "
+
+<DEFINE TYPE?-ANA (NOD RTYP
+                  "AUX" (K <KIDS .NOD>) (LN <LENGTH .K>) ITYP (ALLGOOD T)
+                        (WHO ()) (FTYP ()) (FNOK <>)
+                        (WHON <AND <==? .PRED <PARENT .NOD>> .NOD>) TTYP)
+   #DECL ((NOD) NODE (K) <LIST [REST NODE]> (LN) FIX (ITYP) ANY
+         (ALLGOOD) <OR FALSE ATOM> (WHON) <SPECIAL <OR NODE FALSE>>
+         (WHO) <SPECIAL LIST> (FTYP) LIST)
+   <COND
+    (<SEGFLUSH .NOD .RTYP>)
+    (ELSE
+     <OR <G? .LN 1>
+            <MESSAGE ERROR "TOO FEW ARGS TO TYPE? " .NOD>>
+     <SET ITYP <EANA <1 .K> ANY TYPE?>>
+     <MAPF <>
+          <FUNCTION (N "AUX" FLG) 
+                  #DECL ((N) NODE)
+                  <PROG ()
+                        <EANA .N ATOM TYPE?>
+                        <OR <==? <NODE-TYPE .N> ,QUOTE-CODE>
+                                <RETURN <SET ALLGOOD <>>>>
+                        <OR <MEMQ <NODE-NAME .N> <ALLTYPES>>
+                                <MESSAGE ERROR
+                                         "ARG TO TYPE? NOT A TYPE "
+                                         .NOD>>
+                        <AND <TYPE-OK? <NODE-NAME .N> .ITYP>
+                            <SET FTYP (<NODE-NAME .N> !.FTYP)>>>>
+          <REST .K>>
+     <COND (<AND .ALLGOOD <NOT <EMPTY? .FTYP>>>
+           <SET TTYP
+                <COND (<EMPTY? <REST .FTYP>> <1 .FTYP>)
+                      (ELSE <CHTYPE (OR !.FTYP) FORM>)>>
+           <PUT .NOD ,NODE-TYPE ,TY?-CODE>
+           <SET FNOK <NOT <TYPE-OK? <FORM NOT .TTYP> .ITYP>>>
+           <MAPF <>
+                 <FUNCTION (L "AUX" (FLG <1 .L>) (SYM <2 .L>)) 
+                         #DECL ((L) <LIST <OR ATOM FALSE> SYMTAB> (SYM) SYMTAB)
+                         <SET TRUTH
+                              <ADD-TYPE-LIST .SYM
+                                             .TTYP
+                                             .TRUTH
+                                             .FLG
+                                             <REST .L 2>>>
+                         <OR .FNOK
+                             <SET UNTRUTH
+                                  <ADD-TYPE-LIST .SYM
+                                                 <FORM NOT .TTYP>
+                                                 .UNTRUTH
+                                                 .FLG
+                                                 <REST .L 2>>>>>
+                 .WHO>)
+          (.ALLGOOD <PUT .NOD ,NODE-TYPE ,TY?-CODE>)
+          (ELSE
+           <AND .VERBOSE <ADDVMESS .NOD ("Not open compiled.")>>
+           <PUT .NOD ,NODE-TYPE ,ISUBR-CODE>)>)>
+   <TYPE-OK? <COND (<NOT .ALLGOOD> '<OR FALSE ATOM>)
+                  (<EMPTY? .FTYP> FALSE)
+                  (.FNOK ATOM)
+                  (ELSE '<OR FALSE ATOM>)>
+            .RTYP>>
+
+<PUT ,TYPE? ANALYSIS ,TYPE?-ANA>
+\f
+<ENDPACKAGE>\ 3\ 3\ 3\ 3
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