OLD | NEW |
1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "tools/gn/err.h" | 5 #include "tools/gn/err.h" |
6 #include "tools/gn/functions.h" | 6 #include "tools/gn/functions.h" |
7 #include "tools/gn/parse_tree.h" | 7 #include "tools/gn/parse_tree.h" |
8 #include "tools/gn/scope.h" | 8 #include "tools/gn/scope.h" |
9 | 9 |
10 namespace functions { | 10 namespace functions { |
(...skipping 29 matching lines...) Expand all Loading... |
40 "\n" | 40 "\n" |
41 " Prints:\n" | 41 " Prints:\n" |
42 " a\n" | 42 " a\n" |
43 " b\n" | 43 " b\n" |
44 " c\n"; | 44 " c\n"; |
45 | 45 |
46 Value RunForEach(Scope* scope, | 46 Value RunForEach(Scope* scope, |
47 const FunctionCallNode* function, | 47 const FunctionCallNode* function, |
48 const ListNode* args_list, | 48 const ListNode* args_list, |
49 Err* err) { | 49 Err* err) { |
50 const std::vector<const ParseNode*>& args_vector = args_list->contents(); | 50 const auto& args_vector = args_list->contents(); |
51 if (args_vector.size() != 2) { | 51 if (args_vector.size() != 2) { |
52 *err = Err(function, "Wrong number of arguments to foreach().", | 52 *err = Err(function, "Wrong number of arguments to foreach().", |
53 "Expecting exactly two."); | 53 "Expecting exactly two."); |
54 return Value(); | 54 return Value(); |
55 } | 55 } |
56 | 56 |
57 // Extract the loop variable. | 57 // Extract the loop variable. |
58 const IdentifierNode* identifier = args_vector[0]->AsIdentifier(); | 58 const IdentifierNode* identifier = args_vector[0]->AsIdentifier(); |
59 if (!identifier) { | 59 if (!identifier) { |
60 *err = Err(args_vector[0], "Expected an identifier for the loop var."); | 60 *err = |
| 61 Err(args_vector[0].get(), "Expected an identifier for the loop var."); |
61 return Value(); | 62 return Value(); |
62 } | 63 } |
63 base::StringPiece loop_var(identifier->value().value()); | 64 base::StringPiece loop_var(identifier->value().value()); |
64 | 65 |
65 // Extract the list, avoid a copy if it's an identifier (common case). | 66 // Extract the list, avoid a copy if it's an identifier (common case). |
66 Value value_storage_for_exec; // Backing for list_value when we need to exec. | 67 Value value_storage_for_exec; // Backing for list_value when we need to exec. |
67 const Value* list_value = nullptr; | 68 const Value* list_value = nullptr; |
68 const IdentifierNode* list_identifier = args_vector[1]->AsIdentifier(); | 69 const IdentifierNode* list_identifier = args_vector[1]->AsIdentifier(); |
69 if (list_identifier) { | 70 if (list_identifier) { |
70 list_value = scope->GetValue(list_identifier->value().value(), true); | 71 list_value = scope->GetValue(list_identifier->value().value(), true); |
71 if (!list_value) { | 72 if (!list_value) { |
72 *err = Err(args_vector[1], "Undefined identifier."); | 73 *err = Err(args_vector[1].get(), "Undefined identifier."); |
73 return Value(); | 74 return Value(); |
74 } | 75 } |
75 } else { | 76 } else { |
76 // Not an identifier, evaluate the node to get the result. | 77 // Not an identifier, evaluate the node to get the result. |
77 Scope list_exec_scope(scope); | 78 Scope list_exec_scope(scope); |
78 value_storage_for_exec = args_vector[1]->Execute(scope, err); | 79 value_storage_for_exec = args_vector[1]->Execute(scope, err); |
79 if (err->has_error()) | 80 if (err->has_error()) |
80 return Value(); | 81 return Value(); |
81 list_value = &value_storage_for_exec; | 82 list_value = &value_storage_for_exec; |
82 } | 83 } |
(...skipping 29 matching lines...) Expand all Loading... |
112 scope->SetValue(loop_var, old_loop_value, old_loop_value.origin()); | 113 scope->SetValue(loop_var, old_loop_value, old_loop_value.origin()); |
113 } else { | 114 } else { |
114 // Loop variable was undefined before loop, delete it. | 115 // Loop variable was undefined before loop, delete it. |
115 scope->RemoveIdentifier(loop_var); | 116 scope->RemoveIdentifier(loop_var); |
116 } | 117 } |
117 | 118 |
118 return Value(); | 119 return Value(); |
119 } | 120 } |
120 | 121 |
121 } // namespace functions | 122 } // namespace functions |
OLD | NEW |