blob: e87a8b14bc53ca145e5c06c211db485104c0c33a [file] [log] [blame]
John McCutchan080c33e2015-07-16 12:35:35 -07001// Copyright 2015 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "tonic/dart_exception_factory.h"
6
7#include "tonic/dart_converter.h"
8#include "tonic/dart_builtin.h"
9
John McCutchandeace8f2015-07-21 08:01:40 -070010namespace tonic {
John McCutchan080c33e2015-07-16 12:35:35 -070011
12// TODO(johnmccutchan): Move this into another file.
13class StdStringBuilder {
14 public:
15 StdStringBuilder() {
16 }
17
18 void Append(const char* s, intptr_t length) {
19 if (s == NULL) {
20 return;
21 }
22 for (intptr_t i = 0; i < length; i++) {
23 buffer_.push_back(s[i]);
24 }
25 }
26
27 void Append(const char* s) {
28 if (s == NULL) {
29 return;
30 }
31 for (intptr_t i = 0; s[i] != '\0'; i++) {
32 buffer_.push_back(s[i]);
33 }
34 }
35
36 void Append(char ch) {
37 buffer_.push_back(ch);
38 }
39
40 void Append(std::string s) {
41 if (s.length() == 0) {
42 return;
43 }
44 const char* c_str = s.data();
45 intptr_t c_str_length = s.size();
46 Append(c_str, c_str_length);
47 }
48
49 void AppendNumber(int num) {
50 Append(std::to_string(num));
51 }
52
53 void Clear() {
54 buffer_.resize(0);
55 }
56
57 void ShrinkToFit() {
58 buffer_.shrink_to_fit();
59 }
60
61 void Reserve(intptr_t capacity) {
62 buffer_.reserve(capacity);
63 }
64
65 std::string ToString() {
66 return std::string(buffer_.data(), buffer_.size());
67 }
68
69 const char* data() const {
70 return buffer_.data();
71 }
72
73 char* data() {
74 return buffer_.data();
75 }
76
77 intptr_t size() const {
78 return buffer_.size();
79 }
80
81 private:
82 std::vector<char> buffer_;
83
84 DISALLOW_COPY_AND_ASSIGN(StdStringBuilder);
85};
86
87DartExceptionFactory::DartExceptionFactory(DartState* dart_state)
88 : dart_state_(dart_state) {
89}
90
91DartExceptionFactory::~DartExceptionFactory() {
92}
93
94Dart_Handle DartExceptionFactory::CreateNullArgumentException(int index) {
95 StdStringBuilder builder;
96 builder.Append("Argument ");
97 builder.AppendNumber(index);
98 builder.Append(" cannot be null.");
99 Dart_Handle message_handle = Dart_NewStringFromUTF8(
100 reinterpret_cast<const uint8_t*>(builder.data()), builder.size());
101 return CreateException("ArgumentError", message_handle);
102}
103
104Dart_Handle DartExceptionFactory::CreateException(const std::string& class_name,
105 const std::string& message) {
106 return CreateException(class_name, StdStringToDart(message));
107}
108
109Dart_Handle DartExceptionFactory::CreateException(const std::string& class_name,
110 Dart_Handle message) {
111 if (core_library_.is_empty()) {
112 Dart_Handle library = DartBuiltin::LookupLibrary("dart:core");
113 core_library_.Set(dart_state_, library);
114 }
115
116 Dart_Handle exception_class = Dart_GetType(
117 core_library_.value(), StdStringToDart(class_name), 0, 0);
118 return Dart_New(exception_class, Dart_EmptyString(), 1, &message);
119}
120
John McCutchandeace8f2015-07-21 08:01:40 -0700121} // namespace tonic