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go/printer: make tests follow syntactic restrictions

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R=rsc
CC=golang-dev
https://golang.org/cl/4439087
This commit is contained in:
Robert Griesemer 2011-05-02 10:05:43 -07:00
parent 16381b145e
commit 3599e3fc12
3 changed files with 171 additions and 114 deletions
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95
src/pkg/go/printer/testdata/expressions.golden vendored
View File

@ -94,30 +94,49 @@ func _() {
_ = under_bar - 1
_ = Open(dpath+"/file", O_WRONLY|O_CREAT, 0666)
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx)
// the parser does not restrict expressions that may appear as statements
true
42
"foo"
x
(x)
a + b
a + b + c
a + (b * c)
a + (b / c)
1 + a
a + 1
s[a]
x << 1
(s[0] << 1) & 0xf
"foo" + s
x == y
x < y || z > 42
}
func _() {
a + b
a + b + c
a + b*c
a + (b * c)
(a + b) * c
a + (b * c * d)
a + (b*c + d)
_ = a + b
_ = a + b + c
_ = a + b*c
_ = a + (b * c)
_ = (a + b) * c
_ = a + (b * c * d)
_ = a + (b*c + d)
1 << x
-1 << x
1<<x - 1
-1<<x - 1
_ = 1 << x
_ = -1 << x
_ = 1<<x - 1
_ = -1<<x - 1
f(a + b)
f(a + b + c)
f(a + b*c)
f(a + (b * c))
f(1<<x-1, 1<<x-2)
_ = f(a + b)
_ = f(a + b + c)
_ = f(a + b*c)
_ = f(a + (b * c))
_ = f(1<<x-1, 1<<x-2)
1<<d.logWindowSize - 1
_ = 1<<d.logWindowSize - 1
buf = make(x, 2*cap(b.buf)+n)
@ -131,7 +150,7 @@ func _() {
signed += ' ' * 8
tw.octal(header[148:155], chksum)
x > 0 && i >= 0
_ = x > 0 && i >= 0
x1, x0 := x>>w2, x&m2
z0 = t1<<w2 + t0
@ -141,31 +160,31 @@ func _() {
x1 = (x1 << z) | (x0 >> (uint(w) - z))
x1 = x1<<z | x0>>(uint(w)-z)
buf[0 : len(buf)+1]
buf[0 : n+1]
_ = buf[0 : len(buf)+1]
_ = buf[0 : n+1]
a, b = b, a
a = b + c
a = b*c + d
a*b + c
a - b - c
a - (b - c)
a - b*c
a - (b * c)
a * b / c
a / *b
x[a|^b]
x[a / *b]
a & ^b
a + +b
a - -b
x[a*-b]
x[a + +b]
x ^ y ^ z
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
len(longVariableName) * 2
_ = a*b + c
_ = a - b - c
_ = a - (b - c)
_ = a - b*c
_ = a - (b * c)
_ = a * b / c
_ = a / *b
_ = x[a|^b]
_ = x[a / *b]
_ = a & ^b
_ = a + +b
_ = a - -b
_ = x[a*-b]
_ = x[a + +b]
_ = x ^ y ^ z
_ = b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
_ = len(longVariableName) * 2
token(matchType + xlength<<lengthShift + xoffset)
_ = token(matchType + xlength<<lengthShift + xoffset)
}

95
src/pkg/go/printer/testdata/expressions.input vendored
View File

@ -94,30 +94,49 @@ func _() {
_ = under_bar-1
_ = Open(dpath + "/file", O_WRONLY | O_CREAT, 0666)
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx)
// the parser does not restrict expressions that may appear as statements
true
42
"foo"
x
(x)
a+b
a+b+c
a+(b*c)
a+(b/c)
1+a
a+1
s[a]
x<<1
(s[0]<<1)&0xf
"foo"+s
x == y
x < y || z > 42
}
func _() {
a+b
a+b+c
a+b*c
a+(b*c)
(a+b)*c
a+(b*c*d)
a+(b*c+d)
_ = a+b
_ = a+b+c
_ = a+b*c
_ = a+(b*c)
_ = (a+b)*c
_ = a+(b*c*d)
_ = a+(b*c+d)
1<<x
-1<<x
1<<x-1
-1<<x-1
_ = 1<<x
_ = -1<<x
_ = 1<<x-1
_ = -1<<x-1
f(a+b)
f(a+b+c)
f(a+b*c)
f(a+(b*c))
f(1<<x-1, 1<<x-2)
_ = f(a+b)
_ = f(a+b+c)
_ = f(a+b*c)
_ = f(a+(b*c))
_ = f(1<<x-1, 1<<x-2)
1<<d.logWindowSize-1
_ = 1<<d.logWindowSize-1
buf = make(x, 2*cap(b.buf) + n)
@ -131,7 +150,7 @@ func _() {
signed += ' '*8
tw.octal(header[148:155], chksum)
x > 0 && i >= 0
_ = x > 0 && i >= 0
x1, x0 := x>>w2, x&m2
z0 = t1<<w2+t0
@ -141,31 +160,31 @@ func _() {
x1 = (x1<<z)|(x0>>(uint(w)-z))
x1 = x1<<z | x0>>(uint(w)-z)
buf[0:len(buf)+1]
buf[0:n+1]
_ = buf[0:len(buf)+1]
_ = buf[0:n+1]
a,b = b,a
a = b+c
a = b*c+d
a*b+c
a-b-c
a-(b-c)
a-b*c
a-(b*c)
a*b/c
a/ *b
x[a|^b]
x[a/ *b]
a& ^b
a+ +b
a- -b
x[a*-b]
x[a+ +b]
x^y^z
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
len(longVariableName)*2
_ = a*b+c
_ = a-b-c
_ = a-(b-c)
_ = a-b*c
_ = a-(b*c)
_ = a*b/c
_ = a/ *b
_ = x[a|^b]
_ = x[a/ *b]
_ = a& ^b
_ = a+ +b
_ = a- -b
_ = x[a*-b]
_ = x[a+ +b]
_ = x^y^z
_ = b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
_ = len(longVariableName)*2
token(matchType + xlength<<lengthShift + xoffset)
_ = token(matchType + xlength<<lengthShift + xoffset)
}

95
src/pkg/go/printer/testdata/expressions.raw vendored
View File

@ -94,30 +94,49 @@ func _() {
_ = under_bar - 1
_ = Open(dpath+"/file", O_WRONLY|O_CREAT, 0666)
_ = int(c0&_Mask4)<<18 | int(c1&_Maskx)<<12 | int(c2&_Maskx)<<6 | int(c3&_Maskx)
// the parser does not restrict expressions that may appear as statements
true
42
"foo"
x
(x)
a + b
a + b + c
a + (b * c)
a + (b / c)
1 + a
a + 1
s[a]
x << 1
(s[0] << 1) & 0xf
"foo" + s
x == y
x < y || z > 42
}
func _() {
a + b
a + b + c
a + b*c
a + (b * c)
(a + b) * c
a + (b * c * d)
a + (b*c + d)
_ = a + b
_ = a + b + c
_ = a + b*c
_ = a + (b * c)
_ = (a + b) * c
_ = a + (b * c * d)
_ = a + (b*c + d)
1 << x
-1 << x
1<<x - 1
-1<<x - 1
_ = 1 << x
_ = -1 << x
_ = 1<<x - 1
_ = -1<<x - 1
f(a + b)
f(a + b + c)
f(a + b*c)
f(a + (b * c))
f(1<<x-1, 1<<x-2)
_ = f(a + b)
_ = f(a + b + c)
_ = f(a + b*c)
_ = f(a + (b * c))
_ = f(1<<x-1, 1<<x-2)
1<<d.logWindowSize - 1
_ = 1<<d.logWindowSize - 1
buf = make(x, 2*cap(b.buf)+n)
@ -131,7 +150,7 @@ func _() {
signed += ' ' * 8
tw.octal(header[148:155], chksum)
x > 0 && i >= 0
_ = x > 0 && i >= 0
x1, x0 := x>>w2, x&m2
z0 = t1<<w2 + t0
@ -141,31 +160,31 @@ func _() {
x1 = (x1 << z) | (x0 >> (uint(w) - z))
x1 = x1<<z | x0>>(uint(w)-z)
buf[0 : len(buf)+1]
buf[0 : n+1]
_ = buf[0 : len(buf)+1]
_ = buf[0 : n+1]
a, b = b, a
a = b + c
a = b*c + d
a*b + c
a - b - c
a - (b - c)
a - b*c
a - (b * c)
a * b / c
a / *b
x[a|^b]
x[a / *b]
a & ^b
a + +b
a - -b
x[a*-b]
x[a + +b]
x ^ y ^ z
b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
len(longVariableName) * 2
_ = a*b + c
_ = a - b - c
_ = a - (b - c)
_ = a - b*c
_ = a - (b * c)
_ = a * b / c
_ = a / *b
_ = x[a|^b]
_ = x[a / *b]
_ = a & ^b
_ = a + +b
_ = a - -b
_ = x[a*-b]
_ = x[a + +b]
_ = x ^ y ^ z
_ = b[a>>24] ^ b[(a>>16)&0xFF] ^ b[(a>>8)&0xFF] ^ b[a&0xFF]
_ = len(longVariableName) * 2
token(matchType + xlength<<lengthShift + xoffset)
_ = token(matchType + xlength<<lengthShift + xoffset)
}