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[src/trunk]: src/usr.bin/make make: remove redundant type VarParseResult



details:   https://anonhg.NetBSD.org/src/rev/6f796d21ee49
branches:  trunk
changeset: 373531:6f796d21ee49
user:      rillig <rillig%NetBSD.org@localhost>
date:      Tue Feb 14 21:56:47 2023 +0000

description:
make: remove redundant type VarParseResult

No functional change.

diffstat:

 usr.bin/make/make.h                         |  26 +-------
 usr.bin/make/unit-tests/parse-var.exp       |   2 +-
 usr.bin/make/unit-tests/parse-var.mk        |   5 +-
 usr.bin/make/unit-tests/varparse-errors.exp |   8 +-
 usr.bin/make/unit-tests/varparse-errors.mk  |   3 +-
 usr.bin/make/var.c                          |  98 +++++++++-------------------
 6 files changed, 42 insertions(+), 100 deletions(-)

diffs (truncated from 425 to 300 lines):

diff -r 9249cab0d004 -r 6f796d21ee49 usr.bin/make/make.h
--- a/usr.bin/make/make.h       Tue Feb 14 21:38:31 2023 +0000
+++ b/usr.bin/make/make.h       Tue Feb 14 21:56:47 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: make.h,v 1.313 2023/02/14 21:38:31 rillig Exp $        */
+/*     $NetBSD: make.h,v 1.314 2023/02/14 21:56:47 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -973,30 +973,6 @@
        VAR_SET_READONLY        = 1 << 1
 } VarSetFlags;
 
-/* The state of error handling returned by Var_Parse. */
-typedef enum VarParseResult {
-
-       /* Both parsing and evaluation succeeded. */
-       VPR_OK,
-
-       /* Parsing or evaluating failed, with an error message. */
-       VPR_ERR,
-
-       /*
-        * Parsing succeeded, undefined expressions are allowed and the
-        * expression was still undefined after applying all modifiers.
-        * No error message is printed in this case.
-        *
-        * Some callers handle this case differently, so return this
-        * information to them, for now.
-        *
-        * TODO: Instead of having this special return value, rather ensure
-        *  that VARE_EVAL_KEEP_UNDEF is processed properly.
-        */
-       VPR_UNDEF
-
-} VarParseResult;
-
 typedef enum VarExportMode {
        /* .export-env */
        VEM_ENV,
diff -r 9249cab0d004 -r 6f796d21ee49 usr.bin/make/unit-tests/parse-var.exp
--- a/usr.bin/make/unit-tests/parse-var.exp     Tue Feb 14 21:38:31 2023 +0000
+++ b/usr.bin/make/unit-tests/parse-var.exp     Tue Feb 14 21:56:47 2023 +0000
@@ -1,5 +1,5 @@
 make: Unfinished modifier for "BRACE_GROUP" (',' missing)
-make: "parse-var.mk" line 130: Malformed conditional (0 && ${BRACE_GROUP:S,${BRACE_PAIR:S,{,{{,},<lbraces>,})
+make: "parse-var.mk" line 129: Malformed conditional (0 && ${BRACE_GROUP:S,${BRACE_PAIR:S,{,{{,},<lbraces>,})
 make: Fatal errors encountered -- cannot continue
 make: stopped in unit-tests
 exit status 1
diff -r 9249cab0d004 -r 6f796d21ee49 usr.bin/make/unit-tests/parse-var.mk
--- a/usr.bin/make/unit-tests/parse-var.mk      Tue Feb 14 21:38:31 2023 +0000
+++ b/usr.bin/make/unit-tests/parse-var.mk      Tue Feb 14 21:56:47 2023 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: parse-var.mk,v 1.6 2022/09/25 21:26:23 rillig Exp $
+# $NetBSD: parse-var.mk,v 1.7 2023/02/14 21:56:48 rillig Exp $
 #
 # Tests for parsing variable expressions.
 #
@@ -68,8 +68,7 @@
 #
 # Effects:
 #      How much does the parsing position advance (pp)?
-#      What's the value of the expression (out_val)?
-#      What's the status after parsing the expression (VarParseResult)?
+#      What's the value of the expression (return value)?
 #      What error messages are printed (Parse_Error)?
 #      What no-effect error messages are printed (Error)?
 #      What error messages should be printed but aren't?
diff -r 9249cab0d004 -r 6f796d21ee49 usr.bin/make/unit-tests/varparse-errors.exp
--- a/usr.bin/make/unit-tests/varparse-errors.exp       Tue Feb 14 21:38:31 2023 +0000
+++ b/usr.bin/make/unit-tests/varparse-errors.exp       Tue Feb 14 21:56:47 2023 +0000
@@ -1,10 +1,10 @@
-make: "varparse-errors.mk" line 38: Unknown modifier "Z"
-make: "varparse-errors.mk" line 46: Unknown modifier "Z"
+make: "varparse-errors.mk" line 37: Unknown modifier "Z"
+make: "varparse-errors.mk" line 45: Unknown modifier "Z"
 make: Bad modifier ":OX" for variable ""
-make: "varparse-errors.mk" line 68: Undefined variable "${:U:OX"
+make: "varparse-errors.mk" line 67: Undefined variable "${:U:OX"
 make: Bad modifier ":OX" for variable ""
 make: Bad modifier ":OX" for variable ""
-make: "varparse-errors.mk" line 68: Undefined variable "${:U:OX"
+make: "varparse-errors.mk" line 67: Undefined variable "${:U:OX"
 make: Bad modifier ":OX" for variable ""
 make: Unclosed variable expression, expecting '}' for modifier "Q" of variable "" with value ""
 make: Unclosed variable expression, expecting '}' for modifier "sh" of variable "" with value ""
diff -r 9249cab0d004 -r 6f796d21ee49 usr.bin/make/unit-tests/varparse-errors.mk
--- a/usr.bin/make/unit-tests/varparse-errors.mk        Tue Feb 14 21:38:31 2023 +0000
+++ b/usr.bin/make/unit-tests/varparse-errors.mk        Tue Feb 14 21:56:47 2023 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: varparse-errors.mk,v 1.7 2022/08/24 22:09:41 rillig Exp $
+# $NetBSD: varparse-errors.mk,v 1.8 2023/02/14 21:56:48 rillig Exp $
 
 # Tests for parsing and evaluating all kinds of variable expressions.
 #
@@ -6,7 +6,6 @@
 # Var_Subst, collecting typical and not so typical use cases.
 #
 # See also:
-#      VarParseResult
 #      Var_Parse
 #      Var_Subst
 
diff -r 9249cab0d004 -r 6f796d21ee49 usr.bin/make/var.c
--- a/usr.bin/make/var.c        Tue Feb 14 21:38:31 2023 +0000
+++ b/usr.bin/make/var.c        Tue Feb 14 21:56:47 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: var.c,v 1.1043 2023/02/14 21:38:31 rillig Exp $        */
+/*     $NetBSD: var.c,v 1.1044 2023/02/14 21:56:47 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -139,7 +139,7 @@
 #include "metachar.h"
 
 /*     "@(#)var.c      8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: var.c,v 1.1043 2023/02/14 21:38:31 rillig Exp $");
+MAKE_RCSID("$NetBSD: var.c,v 1.1044 2023/02/14 21:56:47 rillig Exp $");
 
 /*
  * Variables are defined using one of the VAR=value assignments.  Their
@@ -2195,7 +2195,7 @@
 }
 
 /* See ParseModifierPart for the documentation. */
-static VarParseResult
+static bool
 ParseModifierPartSubst(
     const char **pp,
     char delim,
@@ -2246,7 +2246,7 @@
                Error("Unfinished modifier for \"%s\" ('%c' missing)",
                    ch->expr->name, delim);
                LazyBuf_Done(part);
-               return VPR_ERR;
+               return false;
        }
 
        *pp = p + 1;
@@ -2257,7 +2257,7 @@
                    (int)Substring_Length(sub), sub.start);
        }
 
-       return VPR_OK;
+       return true;
 }
 
 /*
@@ -2266,11 +2266,11 @@
  * including the next unescaped delimiter.  The delimiter, as well as the
  * backslash or the dollar, can be escaped with a backslash.
  *
- * Return VPR_OK if parsing succeeded, together with the parsed (and possibly
+ * Return true if parsing succeeded, together with the parsed (and possibly
  * expanded) part.  In that case, pp points right after the delimiter.  The
  * delimiter is not included in the part though.
  */
-static VarParseResult
+static bool
 ParseModifierPart(
     /* The parsing position, updated upon return */
     const char **pp,
@@ -2420,15 +2420,13 @@
        Expr *expr = ch->expr;
        struct ModifyWord_LoopArgs args;
        char prev_sep;
-       VarParseResult res;
        LazyBuf tvarBuf, strBuf;
        FStr tvar, str;
 
        args.scope = expr->scope;
 
        (*pp)++;                /* Skip the first '@' */
-       res = ParseModifierPart(pp, '@', VARE_PARSE_ONLY, ch, &tvarBuf);
-       if (res != VPR_OK)
+       if (!ParseModifierPart(pp, '@', VARE_PARSE_ONLY, ch, &tvarBuf))
                return AMR_CLEANUP;
        tvar = LazyBuf_DoneGet(&tvarBuf);
        args.var = tvar.str;
@@ -2440,8 +2438,7 @@
                return AMR_CLEANUP;
        }
 
-       res = ParseModifierPart(pp, '@', VARE_PARSE_ONLY, ch, &strBuf);
-       if (res != VPR_OK)
+       if (!ParseModifierPart(pp, '@', VARE_PARSE_ONLY, ch, &strBuf))
                return AMR_CLEANUP;
        str = LazyBuf_DoneGet(&strBuf);
        args.body = str.str;
@@ -2649,13 +2646,11 @@
 ApplyModifier_ShellCommand(const char **pp, ModChain *ch)
 {
        Expr *expr = ch->expr;
-       VarParseResult res;
        LazyBuf cmdBuf;
        FStr cmd;
 
        (*pp)++;
-       res = ParseModifierPart(pp, '!', expr->emode, ch, &cmdBuf);
-       if (res != VPR_OK)
+       if (!ParseModifierPart(pp, '!', expr->emode, ch, &cmdBuf))
                return AMR_CLEANUP;
        cmd = LazyBuf_DoneGet(&cmdBuf);
 
@@ -2858,7 +2853,6 @@
 {
        struct ModifyWord_SubstArgs args;
        bool oneBigWord;
-       VarParseResult res;
        LazyBuf lhsBuf, rhsBuf;
 
        char delim = (*pp)[1];
@@ -2878,15 +2872,13 @@
                (*pp)++;
        }
 
-       res = ParseModifierPartSubst(pp, delim, ch->expr->emode, ch, &lhsBuf,
-           &args.pflags, NULL);
-       if (res != VPR_OK)
+       if (!ParseModifierPartSubst(pp, delim, ch->expr->emode, ch, &lhsBuf,
+           &args.pflags, NULL))
                return AMR_CLEANUP;
        args.lhs = LazyBuf_Get(&lhsBuf);
 
-       res = ParseModifierPartSubst(pp, delim, ch->expr->emode, ch, &rhsBuf,
-           NULL, &args);
-       if (res != VPR_OK) {
+       if (!ParseModifierPartSubst(pp, delim, ch->expr->emode, ch, &rhsBuf,
+           NULL, &args)) {
                LazyBuf_Done(&lhsBuf);
                return AMR_CLEANUP;
        }
@@ -2911,7 +2903,6 @@
        struct ModifyWord_SubstRegexArgs args;
        bool oneBigWord;
        int error;
-       VarParseResult res;
        LazyBuf reBuf, replaceBuf;
        FStr re;
 
@@ -2924,13 +2915,11 @@
 
        *pp += 2;
 
-       res = ParseModifierPart(pp, delim, ch->expr->emode, ch, &reBuf);
-       if (res != VPR_OK)
+       if (!ParseModifierPart(pp, delim, ch->expr->emode, ch, &reBuf))
                return AMR_CLEANUP;
        re = LazyBuf_DoneGet(&reBuf);
 
-       res = ParseModifierPart(pp, delim, ch->expr->emode, ch, &replaceBuf);
-       if (res != VPR_OK) {
+       if (!ParseModifierPart(pp, delim, ch->expr->emode, ch, &replaceBuf)) {
                FStr_Done(&re);
                return AMR_CLEANUP;
        }
@@ -3163,14 +3152,12 @@
        Expr *expr = ch->expr;
        const char *estr;
        int first, last;
-       VarParseResult res;
        const char *p;
        LazyBuf estrBuf;
        FStr festr;
 
        (*pp)++;                /* skip the '[' */
-       res = ParseModifierPart(pp, ']', expr->emode, ch, &estrBuf);
-       if (res != VPR_OK)
+       if (!ParseModifierPart(pp, ']', expr->emode, ch, &estrBuf))
                return AMR_CLEANUP;
        festr = LazyBuf_DoneGet(&estrBuf);
        estr = festr.str;
@@ -3395,7 +3382,6 @@
 ApplyModifier_IfElse(const char **pp, ModChain *ch)
 {
        Expr *expr = ch->expr;
-       VarParseResult res;
        LazyBuf thenBuf;
        LazyBuf elseBuf;
 
@@ -3412,12 +3398,10 @@
        }
 
        (*pp)++;                /* skip past the '?' */
-       res = ParseModifierPart(pp, ':', then_emode, ch, &thenBuf);
-       if (res != VPR_OK)
+       if (!ParseModifierPart(pp, ':', then_emode, ch, &thenBuf))
                return AMR_CLEANUP;
 
-       res = ParseModifierPart(pp, ch->endc, else_emode, ch, &elseBuf);
-       if (res != VPR_OK) {
+       if (!ParseModifierPart(pp, ch->endc, else_emode, ch, &elseBuf)) {
                LazyBuf_Done(&thenBuf);
                return AMR_CLEANUP;
        }
@@ -3478,7 +3462,6 @@
        Expr *expr = ch->expr;
        GNode *scope;
        FStr val;



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