1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
// file : build2/test/script/script.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <build2/test/script/script>
#include <build2/target>
using namespace std;
namespace build2
{
namespace test
{
namespace script
{
script::
script (target& tt, testscript& st)
: test_target (tt), script_target (st),
// Enter the test* variables with the same variable types as in
// buildfiles.
//
test_var (var_pool.insert<path> ("test")),
opts_var (var_pool.insert<strings> ("test.options")),
args_var (var_pool.insert<strings> ("test.arguments")),
cmd_var (var_pool.insert<strings> ("*")),
cwd_var (var_pool.insert<dir_path> ("~"))
{
// Unless we have the test variable set on the test or script target,
// set it at the script level to the test target's path.
//
if (!find (test_var))
{
value& v (assign (test_var));
// If this is a path-based target, then we use the path. If this
// is a directory (alias) target, then we use the directory path.
// Otherwise, we leave it NULL expecting the testscript to set it
// to something appropriate, if used.
//
if (auto* p = tt.is_a<path_target> ())
v = p->path ();
else if (tt.is_a<dir> ())
v = path (tt.dir.string ()); // Strip trailing slash.
}
// Also add the NULL $* value that signals it needs to be recalculated
// on first access.
//
assign (cmd_var) = nullptr;
// Set the script CWD ($~) which is the $out_base/<script-name>.
//
assign (cwd_var) = dir_path (tt.out_dir ()) /= st.name;
}
lookup scope::
find (const variable& var) const
{
// Search script scopes until we hit the root.
//
const scope* p (this);
do
{
if (const value* v = p->vars.find (var))
return lookup (v, &p->vars);
}
while (p->parent != nullptr ? (p = p->parent) : nullptr);
// Switch to the corresponding buildfile variable. Note that we don't
// want to insert a new variable into the pool (we might be running
// concurrently). Plus, if there is no such variable, then we cannot
// possibly find any value.
//
const variable* pvar (build2::var_pool.find (var.name));
if (pvar == nullptr)
return lookup ();
const script& s (static_cast<const script&> (*p));
{
const variable& var (*pvar);
// First check the target we are testing.
//
{
// Note that we skip applying the override if we did not find any
// value. In this case, presumably the override also affects the
// script target and we will pick it up there. A bit fuzzy.
//
auto p (s.test_target.find_original (var, true));
if (p.first)
{
if (var.override != nullptr)
p = s.test_target.base_scope ().find_override (
var, move (p), true);
return p.first;
}
}
// Then the script target followed by the scopes it is in. Note that
// while unlikely it is possible the test and script targets will be
// in different scopes which brings the question of which scopes we
// should search.
//
return s.script_target[var];
}
}
value& scope::
append (const variable& var)
{
lookup l (find (var));
if (l.defined () && l.belongs (*this)) // Existing var in this scope.
return const_cast<value&> (*l);
value& r (assign (var)); // NULL.
//@@ I guess this is where we convert untyped value to strings?
//
if (l.defined ())
r = *l; // Copy value (and type) from the outer scope.
return r;
}
}
}
}
|
