1193 – regression: "matches more than one template declaration" doesn't list the location of the conflicting templates

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Issue 1193 - regression: "matches more than one template declaration" doesn't list the location of the conflicting templates

Summary: regression: "matches more than one template declaration" doesn't list the loc...

Status:	RESOLVED FIXED
Alias:	None
Product:	D
Classification:	Unclassified
Component:	dmd (show other issues)
Version:	D1 (retired)
Hardware:	x86 All
Importance :	P3 regression
Assignee:	No Owner
URL:
Keywords:	diagnostic, patch
Depends on:
Blocks:

See Also:
Reported:	2007年04月27日 12:57 UTC by Thomas Kühne
Modified:	2014年02月16日 15:23 UTC (History)
CC List:	2 users (show)

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Description Thomas Kühne 2007年04月27日 12:57:45 UTC

# template fn( T ) {
# void fn() {
# }
# }
#
# template fn( T ) {
# void fn( T val ) {
# }
# }
#
# void main() {
# mixin fn!(int);
# }
DMD-1.010:
nocompile/t/template_25_A.d(18): template 
dstress.nocompile.t.template_25_A.fn(T) conflicts with 
dstress.nocompile.t.template_25_A.fn(T) at nocompile/t/template_25_A.d(13)
DMD-1.013:
nocompile/t/template_25_A.d(24): mixin fn!(int) matches more than one template 
declaration, fn(T) and fn(T)
test cases:
http://dstress.kuehne.cn/nocompile/t/template_25_A.d
http://dstress.kuehne.cn/nocompile/t/template_class_17.d
http://dstress.kuehne.cn/nocompile/t/template_struct_07.d

Comment 1 Brad Roberts 2010年05月19日 00:00:25 UTC

quick easy fix for this one (against dmd 2.x, but likely applies easily enough to 1.x):
diff --git a/src/template.c b/src/template.c
--- a/src/template.c
+++ b/src/template.c
@@ -4313,8 +4313,10 @@ TemplateDeclaration *TemplateInstance::findBestMatch(Scope *sc)
 }
 if (td_ambig)
 {
- error("%s matches more than one template declaration, %s and %s",
- toChars(), td_best->toChars(), td_ambig->toChars());
+ error("%s matches more than one template declaration, %s(%d):%s and %s(%d):%s",
+ toChars(),
+ td_best->loc.filename, td_best->loc.linnum, td_best->toChars(),
+ td_ambig->loc.filename, td_ambig->loc.linnum, td_ambig->toChars());
 }
 
 /* The best match is td_best
Results in:
bug1193.d(12): Error: mixin fn!(int) matches more than one template declaration, bug1193.d(1):fn(T) and bug1193.d(6):fn(T)

Comment 2 Walter Bright 2010年06月02日 00:49:58 UTC

http://www.dsource.org/projects/dmd/changeset/515