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gc: echo literal in error message

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Fixes #1192.

R=ken2
CC=golang-dev
https://golang.org/cl/4794062
This commit is contained in:
Russ Cox 2011-07-27 14:36:21 -04:00
parent 100a034120
commit 49b70d01c0
3 changed files with 28 additions and 0 deletions
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1
src/cmd/gc/go.h
View File

@ -698,6 +698,7 @@ EXTERN int nsyntaxerrors;
EXTERN int safemode;
EXTERN char namebuf[NSYMB];
EXTERN char lexbuf[NSYMB];
EXTERN char litbuf[NSYMB];
EXTERN char debug[256];
EXTERN Sym* hash[NHASH];
EXTERN Sym* importmyname; // my name for package

14
src/cmd/gc/lex.c
View File

@ -728,6 +728,7 @@ l0:
yylval.val.u.sval = (Strlit*)cp;
yylval.val.ctype = CTSTR;
DBG("lex: string literal\n");
strcpy(litbuf, "string literal");
return LLITERAL;
case '\'':
@ -744,6 +745,7 @@ l0:
mpmovecfix(yylval.val.u.xval, v);
yylval.val.ctype = CTINT;
DBG("lex: codepoint literal\n");
strcpy(litbuf, "string literal");
return LLITERAL;
case '/':
@ -1133,6 +1135,8 @@ ncu:
}
yylval.val.ctype = CTINT;
DBG("lex: integer literal\n");
strcpy(litbuf, "literal ");
strcat(litbuf, lexbuf);
return LLITERAL;
casedot:
@ -1205,6 +1209,8 @@ casei:
}
yylval.val.ctype = CTCPLX;
DBG("lex: imaginary literal\n");
strcpy(litbuf, "literal ");
strcat(litbuf, lexbuf);
return LLITERAL;
caseout:
@ -1219,6 +1225,8 @@ caseout:
}
yylval.val.ctype = CTFLT;
DBG("lex: floating literal\n");
strcpy(litbuf, "literal ");
strcat(litbuf, lexbuf);
return LLITERAL;
}
@ -1859,6 +1867,12 @@ yytinit(void)
for(i=0; yytname[i] != nil; i++) {
s = yytname[i];
if(strcmp(s, "LLITERAL") == 0) {
strcpy(litbuf, "literal");
yytname[i] = litbuf;
goto loop;
}
// apply yytfix if possible
for(j=0; j<nelem(yytfix); j++) {
if(strcmp(s, yytfix[j].have) == 0) {

13
test/fixedbugs/bug349.go Normal file
View File

@ -0,0 +1,13 @@
// errchk $G $D/$F.go
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// issue 1192 - detail in error
package main
func foo() (a, b, c int) {
return 0, 1 2.01 // ERROR "unexpected literal 2.01"
}