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Commit Graph

16 Commits

Author SHA1 Message Date
Alberto Donizetti
1737aef270 cmd/compile: more error position tests for the typechecker
This change adds line position tests for several yyerror calls in the
typechecker that are currently not tested in any way.

Untested yyerror calls were found by replacing them with

  yerrorl(src.NoXPos, ...)

(thus destroying position information in the error), and then running
the test suite. No failures means no test coverage for the relevant
yyerror call.

For #19683

Change-Id: Iedb3d2f02141b332e9bfa76dbf5ae930ad2fddc3
Reviewed-on: https://go-review.googlesource.com/41477
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2017-04-24 12:37:49 +00:00
Alberto Donizetti
3218b1aa6f cmd/compile: only print one error for bad-type literal in assignment
Fixes #8438

Change-Id: Ib43cdcdc962a8d9e14faf984bc859a92ba1eb517
Reviewed-on: https://go-review.googlesource.com/40531
Reviewed-by: Robert Griesemer <gri@golang.org>
2017-04-20 22:21:55 +00:00
Chris Manghane
db4dad7fd7 cmd/gc: blank methods are not permitted in interface types
Fixes #6606.

LGTM=rsc
R=rsc
CC=golang-codereviews, gri
https://golang.org/cl/156210044
2014-10-15 09:55:13 -07:00
Anthony Martin
f316a7ea87 cmd/gc: don't attempt to generate wrappers for blank interface methods
Fixes #5691.

R=golang-dev, bradfitz, daniel.morsing, rsc
CC=golang-dev
https://golang.org/cl/10255047
2013-08-19 11:53:34 +10:00
Daniel Morsing
1c2021ca14 cmd/gc: Suggest *T in error for x.(T) if it would work.
Accomplished by synchronizing the formatting of conversion errors between typecheck.c and subr.c

Fixes #3984.

R=golang-dev, remyoudompheng, rsc
CC=golang-dev
https://golang.org/cl/6500064
2012-09-01 13:52:55 -04:00
Daniel Morsing
b04c890a89 cmd/gc: Don't claim type assertion would help when it wont.
Fixes #3465.

R=golang-dev, rsc, remyoudompheng, iant
CC=golang-dev
https://golang.org/cl/6448097
2012-08-15 16:53:06 -07:00
Rob Pike
13514d4e0b test/interface: document tests
Most already had comments (yay); adjusted for consistency.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5676102
2012-02-19 17:33:41 +11:00
Russ Cox
d2cc988429 test: use testlib (fourth 100)
X ,s;^// \$G (\$D/)?\$F\.go *$;// compile;g
X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A *$;// build;g
X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A && \./\$A\.out *$;// run;g
X ,s;^// errchk \$G( -e)? (\$D/)?\$F\.go *$;// errorcheck;g

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5673079
2012-02-16 23:50:37 -05:00
Russ Cox
a5d7c1f45e errchk: allow multiple patterns
// ERROR "pattern1" "pattern2"

means that there has to be one or more
lines matching pattern1 and then excluding
those, there have to be one or more lines
matching pattern2.  So if you expect two
different error messages from a particular
line, writing two separate patterns checks
that both errors are produced.

Also, errchk now flags lines that produce
more errors than expected.  Before, as long as
at least one error matched the pattern, all the
others were ignored.

Revise tests to expect or silence these
additional errors.

R=lvd, r, iant
CC=golang-dev
https://golang.org/cl/4869044
2011-08-16 11:14:26 -04:00
Russ Cox
f2b5a07453 delete float, complex - code changes
also:
	cmplx -> complex
	float64(1.0) -> 1.0
	float64(1) -> 1.0

R=gri, r, gri1, r2
CC=golang-dev
https://golang.org/cl/3991043
2011-01-19 23:09:00 -05:00
Ian Lance Taylor
2d8433a720 test: Match gccgo error messages.
explicit.go:36:4: error: incompatible types in assignment (need explicit conversion)
explicit.go:41:4: error: incompatible types in assignment (type has no methods)
explicit.go:42:4: error: incompatible types in assignment (need explicit conversion)
explicit.go:45:5: error: incompatible types in assignment (need explicit conversion; missing method ‘N’)
explicit.go:48:9: error: invalid type conversion (need explicit conversion; missing method ‘N’)
explicit.go:51:4: error: incompatible types in assignment
explicit.go:51:7: error: invalid type conversion (need explicit conversion)
explicit.go:57:10: error: impossible type assertion: type does not implement interface (type has no methods)
explicit.go:62:10: error: impossible type assertion: type does not implement interface (incompatible type for method ‘M’ (different number of parameters))
explicit.go:67:5: error: incompatible type in initialization (type has no methods)
explicit.go:68:5: error: incompatible type in initialization (incompatible type for method ‘M’ (different number of parameters))
explicit.go:70:11: error: invalid type conversion (type has no methods)
explicit.go:71:11: error: invalid type conversion (incompatible type for method ‘M’ (different number of parameters))

R=rsc
CC=golang-dev
https://golang.org/cl/2139044
2010-09-08 21:03:24 -07:00
Russ Cox
a2a7d473f4 gc: more cleanup
* disallow surrogate pair runes.
 * diagnose impossible type assertions
 * eliminate another static buffer.
 * do not overflow lexbuf.
 * add -u flag to disable package unsafe.

R=ken2
CC=golang-dev
https://golang.org/cl/1619042
2010-06-09 11:00:55 -07:00
Russ Cox
565b5dc076 gc: new typechecking rules
* Code for assignment, conversions now mirrors spec.
* Changed some snprint -> smprint.
* Renamed runtime functions to separate
  interface conversions from type assertions:
  convT2I, assertI2T, etc.
* Correct checking of \U sequences.

Fixes #840.
Fixes #830.
Fixes #778.

R=ken2
CC=golang-dev
https://golang.org/cl/1303042
2010-06-08 18:50:02 -07:00
Ian Lance Taylor
3321470488 Recognize gccgo error message.
explicit.go:21:5: error: incompatible types in assignment (need explicit conversion)
   explicit.go:26:5: error: incompatible types in assignment (type has no methods)
   explicit.go:27:5: error: incompatible types in assignment (need explicit conversion)
   explicit.go:30:6: error: incompatible types in assignment (need explicit conversion; missing method ‘N’)
   explicit.go:33:7: error: invalid type conversion (need explicit conversion; missing method ‘N’)
   explicit.go:36:5: error: incompatible types in assignment

R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=31805
CL=31807
2009-07-17 16:12:29 -07:00
Russ Cox
d436a70193 allow conversion to interface type
when implicit assignment would have been okay.

R=ken
OCL=31225
CL=31227
2009-07-06 17:20:48 -07:00
Russ Cox
b9159722dd add test for yesterday's interface rule change (interface/convert1.go).
move interface tests to subdirectory.

R=r
DELTA=1632  (827 added, 804 deleted, 1 changed)
OCL=29181
CL=29191
2009-05-21 13:46:20 -07:00