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Commit Graph

217 Commits

Author SHA1 Message Date
Robert Griesemer
5474e166bc go spec: clarifications for range clause
R=iant, r, rsc, rog
CC=golang-dev
https://golang.org/cl/2226047
2010-09-28 14:44:19 -07:00
Russ Cox
00ffd59c1a gc: fix reflect table method receiver
Fixes #451.
Fixes #770.

R=ken2
CC=golang-dev
https://golang.org/cl/2207045
2010-09-28 13:43:50 -04:00
Robert Griesemer
0e66a13d10 go_spec: EOF may insert a semicolon
R=rsc, r, iant
CC=golang-dev
https://golang.org/cl/2266043
2010-09-27 18:59:11 -07:00
Robert Griesemer
ac771a8a47 go spec: ... changes
Also: Fixed a bug in the BuiltinCall production.

R=iant, r, rsc
CC=golang-dev
https://golang.org/cl/2278041
2010-09-24 14:08:28 -07:00
Joe Poirier
d4c8a54579 doc: fix typo in go_spec.html
R=rsc
CC=golang-dev
https://golang.org/cl/2250041
2010-09-20 10:51:05 -07:00
Robert Griesemer
9e5bf27acb go_spec: consistent use of 'low', 'high' in slices section
Also: Added examples for slices with omitted index expressions.

R=r, rsc
CC=golang-dev
https://golang.org/cl/2106047
2010-09-07 16:32:35 -07:00
Scott Lawrence
0c1695b42e spec: Allow omission of low slice bound
See also https://golang.org/cl/1957045/

R=gri, rsc, r
CC=golang-dev
https://golang.org/cl/2163042
2010-09-07 14:30:17 -07:00
Robert Griesemer
947e2180e9 go_spec: fix typo (pointed out by Hiroshi Iwatani)
R=iant
CC=golang-dev
https://golang.org/cl/2128045
2010-09-07 11:14:36 -07:00
Robert Griesemer
c423e95da6 go spec clarification: arrays must be addressable to be sliceable
R=rsc
CC=golang-dev, r
https://golang.org/cl/2141041
2010-09-02 10:16:31 -07:00
Rob Pike
cb2730e60c spec: delete spurious space (missed fix from previous review)
No semantic change.

R=rsc
CC=golang-dev
https://golang.org/cl/2099041
2010-09-01 10:48:45 +10:00
Rob Pike
68f1609eb4 spec: fix a couple of tiny glitches
R=gri, rsc
CC=golang-dev
https://golang.org/cl/2078041
2010-09-01 10:40:50 +10:00
Ian Lance Taylor
659966a988 doc: Update gccgo information for recent changes.
R=r
CC=golang-dev
https://golang.org/cl/1941052
2010-08-23 17:50:30 -07:00
Rob Pike
132d2f11a8 spec: delete erroneous word 'pointer' in specification of select.
R=gri
CC=golang-dev
https://golang.org/cl/1960044
2010-08-16 06:42:41 +10:00
Stephen Ma
0d40e40f5e spec: trivial syntax fix
R=golang-dev
CC=golang-dev
https://golang.org/cl/1982042
2010-08-14 10:27:24 +10:00
Robert Griesemer
07cc6440dc go_spec: don't allow parens around the literal type of composite literals
Background: The current spec is imprecise with respect to the parsing ambiguity
for composite literals: It says that the ambiguity arises when the TypeName form
of the LiteralType is used. The following code:

    if (B) {} ...

is not using the TypeName form (but the parenthesized TypeName form) and thus
could be interpreted as:

    if ((B){}) ...

instead of

    if B {} ...

Both compilers and gofmt choose the latter interpretation. One could fix the
spec by making the clause regarding the parsing ambiguity more precise ("...using
the _possibly parenthesized_ TypeName form of the LiteralType..."). The alternative
(chosen here) is to simply disallow parenthesized literal types. Except for a single
test case (test/parentype.go) there appears to be no Go code under $GOROOT containing
parenthesized literal types. Furthermore, parentheses are never needed around a
literal type for correct parsing.

R=golang-dev
CC=golang-dev
https://golang.org/cl/1913041
2010-07-29 18:13:41 -07:00
Andrew Gerrand
88fc337fa2 spec: add recover to predeclared identifiers list
R=gri
CC=golang-dev
https://golang.org/cl/1894043
2010-07-27 15:03:30 +10:00
Robert Griesemer
dc60c5a7ec go spec: clarification of channel close()
R=r, rsc
CC=golang-dev
https://golang.org/cl/1766042
2010-07-14 16:09:22 -07:00
Rob Pike
041d11623f Go specification: Lock down some details about channels and select:
- nil channel in regular send or receive panics
- empty select blocks forever

R=rsc, gri, iant, ken2
CC=golang-dev
https://golang.org/cl/1825043
2010-07-13 16:23:54 -07:00
Robert Griesemer
0c2e6b3637 go spec: specify len/cap for nil slices, maps, and channels
Fixes #891.

R=r, rsc
CC=golang-dev
https://golang.org/cl/1760043
2010-07-13 11:54:57 -07:00
Robert Griesemer
73ca127e67 go/spec: fix typo
R=r
CC=golang-dev
https://golang.org/cl/1790041
2010-07-09 13:02:54 -07:00
Russ Cox
f4429181df spec: restrict when len(x) is constant
R=gri, iant, ken2, r
CC=golang-dev
https://golang.org/cl/1687047
2010-07-01 17:49:47 -07:00
Russ Cox
e495351ff7 spec: struct tags must be identical for types to be identical
We didn't mention this explicitly during our discussions,
but I think it fits the "identical types are spelled identically"
rule that we used.

R=gri, iant, ken2, r, rsc1
CC=golang-dev
https://golang.org/cl/1698043
2010-06-21 12:42:33 -07:00
Russ Cox
9562592342 spec: remove ... (keeping ...T)
R=gri, iant, ken2, r, r2
CC=golang-dev
https://golang.org/cl/1632041
2010-06-12 11:37:13 -07:00
Rob Pike
db8c2b1803 spec: clarify that result parameters are always zeroed before the function executes.
R=golang-dev
CC=golang-dev
https://golang.org/cl/1641043
2010-06-11 21:30:03 -07:00
Robert Griesemer
440cc95470 go spec: rename "assignment compatible" -> "assignable"
R=r, rsc
CC=golang-dev
https://golang.org/cl/1590041
2010-06-07 17:40:21 -07:00
Robert Griesemer
7bc03718f4 go spec: clean-up and consolidation of spec with implementation
Specifically:
- introduced notion of "underlying type"
- removed notion of type compatibility
- consolidated rules about assignment compatibility in
  assignment compatibility section
- be consistent with specyfing that nil is the value
  for uninitialized variables that can be nil (this
  was not specified clearly for pointers, functions, interfaces)
- added/fixed various related links throughout
- clarify language on conversions

R=rsc, r, iant, ken2
CC=golang-dev
https://golang.org/cl/1536041
2010-06-07 15:49:39 -07:00
Robert Griesemer
1d282a8eb2 go spec: Base comparison compatibility on assignment compatibility.
Specifically:
- Simplified definition of comparison compatibility and folded into
  section on comparison operators since it's only used there.

This is a small language change/cleanup. As a consequence:
- An interface value may now be compared against a non-interface value.
- Channels with opposite directions cannot be compared directly anymore
  (per discussion with rsc).

R=rsc, r, iant, ken2
CC=golang-dev
https://golang.org/cl/1462041
2010-06-03 16:55:50 -07:00
Robert Griesemer
63f014910d go spec: change def. of "type compatibility" to be non-recursive
and adjust conversion rules.

Also:
- clarification of type identity (no language change)
- adjust special rules for channel assignment/comparison to
  require identical element types (in correspondence to non-
  recursiveness of type compatibility)

R=rsc, iant, ken2, r
CC=golang-dev
https://golang.org/cl/1376042
2010-05-28 14:17:30 -07:00
Robert Griesemer
31f2503cde go spec: Disallow &a notation to obtain a slice
from an array; one needs to write a[0:] instead.

R=rsc, r, iant, ken2
CC=golang-dev
https://golang.org/cl/1365041
2010-05-27 17:23:25 -07:00
Evan Shaw
67d30bb696 spec: Fix link to fallthrough statements
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/1303041
2010-05-25 18:24:07 -07:00
Robert Griesemer
c7e03a32b3 go spec: minor fix, to match conversion rules 4 and 5
R=rsc
CC=golang-dev
https://golang.org/cl/1270042
2010-05-24 21:25:01 -07:00
Robert Griesemer
934a520d75 go spec: fix and clarify syntax of conversions
Fixes #803.

R=rsc, r, iant, ken2
CC=golang-dev
https://golang.org/cl/1281041
2010-05-24 14:58:26 -07:00
Russ Cox
e7561de09a spec: index of non-addressable array is not addressable
Motivated by:

func f() []int
func g() [10]int

f()[1] = 1  // ok
g()[1] = 1 // ERROR

R=gri
CC=golang-dev
https://golang.org/cl/1278041
2010-05-24 14:31:43 -07:00
Evan Shaw
cb4e9f8508 spec: Fix a code tag
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/1266042
2010-05-23 11:21:47 -07:00
Robert Griesemer
3af4803704 go spec: added imaginary literal to semicolon rules (was missing)
- also added links to the respective sections
- reformatted section for better (source html) readability
- added missing closing </li>'s in many places

R=r
CC=golang-dev
https://golang.org/cl/1220041
2010-05-14 13:11:48 -07:00
Robert Griesemer
56ca697269 go spec: simplify section on channel types
R=rsc, iant, r
CC=golang-dev
https://golang.org/cl/1171041
2010-05-07 18:22:40 -07:00
Robert Griesemer
df674ffb43 go spec: clarification of make arguments,
specification of runtime exceptions for
make and division by zero

R=r, rsc, ken2, iant
CC=golang-dev
https://golang.org/cl/1081041
2010-05-04 17:31:40 -07:00
Robert Griesemer
39f009cb8e go spec: fix iota description
R=r, rsc
CC=golang-dev
https://golang.org/cl/946046
2010-04-29 10:57:27 -07:00
Rob Pike
de92199648 spec: clarify "continue" with label. the text was obvious in intent but
inaccurate in meaning.

R=gri
CC=golang-dev
https://golang.org/cl/964045
2010-04-28 13:18:40 -07:00
Robert Griesemer
f5b3c14f31 go spec: fix wrong comment
Fixes #743.

R=r, rsc
CC=golang-dev
https://golang.org/cl/944044
2010-04-27 17:52:44 -07:00
Evan Shaw
21110c799d spec: Fix run-time panic header id
Everything was linking to "Run_time_panics", but the id was "Run_time_errors".

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/961042
2010-04-22 10:14:53 -07:00
Russ Cox
6aad41919b go_spec updates
R=r, iant
CC=golang-dev
https://golang.org/cl/921041
2010-04-13 20:55:57 -07:00
Joe Poirier
d37e87c1b2 gp_spec typo fix: code example in the "Handling panics" section
R=rsc, adg
CC=golang-dev
https://golang.org/cl/881047
2010-04-08 10:25:57 +10:00
Robert Griesemer
d4a1619733 go spec: correct clarification of type declaration
R=rsc, r
CC=golang-dev
https://golang.org/cl/855043
2010-04-01 12:48:34 -07:00
Robert Griesemer
735e00d4a0 go spec: clarification of type declarations
R=r, rsc
CC=golang-dev
https://golang.org/cl/849044
2010-03-31 16:37:22 -07:00
Robert Griesemer
e8e4987ba3 godoc: support for title and subtitle headers when serving .html docs
and use it to show version (date) of go spec

Fixes #68.

R=rsc
CC=golang-dev, r
https://golang.org/cl/848042
2010-03-30 17:37:42 -07:00
Andrew Gerrand
10b77f7a2b spec: typo in switch sample code, missing semicolon
Fixes #697

R=r
CC=golang-dev
https://golang.org/cl/804042
2010-03-29 13:12:08 +11:00
Russ Cox
97d0e8fe6c gc: allow taking address of out parameters
Fixes #186.

R=ken2
CC=golang-dev
https://golang.org/cl/793041
2010-03-26 18:01:02 -07:00
Rob Pike
5bb29fb116 spec changes for panic and recover.
R=rsc, gri
CC=golang-dev
https://golang.org/cl/763041
2010-03-25 17:59:59 -07:00
Rob Pike
bf9b8f2c17 Delete panicln from the spec.
R=rsc, gri, iant, ken2
CC=golang-dev
https://golang.org/cl/738041
2010-03-24 15:17:00 -07:00