1
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function _sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
|
2
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|
3
|
function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return _sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }
|
4
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|
5
|
function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
|
6
|
|
7
|
import { signatures } from "./signatures";
|
8
|
import { traverse } from "./traverse";
|
9
|
import constants from "@webassemblyjs/helper-wasm-bytecode";
|
10
|
import { getSectionForNode } from "@webassemblyjs/helper-wasm-bytecode";
|
11
|
export function isAnonymous(ident) {
|
12
|
return ident.raw === "";
|
13
|
}
|
14
|
export function getSectionMetadata(ast, name) {
|
15
|
var section;
|
16
|
traverse(ast, {
|
17
|
SectionMetadata: function (_SectionMetadata) {
|
18
|
function SectionMetadata(_x) {
|
19
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return _SectionMetadata.apply(this, arguments);
|
20
|
}
|
21
|
|
22
|
SectionMetadata.toString = function () {
|
23
|
return _SectionMetadata.toString();
|
24
|
};
|
25
|
|
26
|
return SectionMetadata;
|
27
|
}(function (_ref) {
|
28
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var node = _ref.node;
|
29
|
|
30
|
if (node.section === name) {
|
31
|
section = node;
|
32
|
}
|
33
|
})
|
34
|
});
|
35
|
return section;
|
36
|
}
|
37
|
export function getSectionMetadatas(ast, name) {
|
38
|
var sections = [];
|
39
|
traverse(ast, {
|
40
|
SectionMetadata: function (_SectionMetadata2) {
|
41
|
function SectionMetadata(_x2) {
|
42
|
return _SectionMetadata2.apply(this, arguments);
|
43
|
}
|
44
|
|
45
|
SectionMetadata.toString = function () {
|
46
|
return _SectionMetadata2.toString();
|
47
|
};
|
48
|
|
49
|
return SectionMetadata;
|
50
|
}(function (_ref2) {
|
51
|
var node = _ref2.node;
|
52
|
|
53
|
if (node.section === name) {
|
54
|
sections.push(node);
|
55
|
}
|
56
|
})
|
57
|
});
|
58
|
return sections;
|
59
|
}
|
60
|
export function sortSectionMetadata(m) {
|
61
|
if (m.metadata == null) {
|
62
|
console.warn("sortSectionMetadata: no metadata to sort");
|
63
|
return;
|
64
|
} // $FlowIgnore
|
65
|
|
66
|
|
67
|
m.metadata.sections.sort(function (a, b) {
|
68
|
var aId = constants.sections[a.section];
|
69
|
var bId = constants.sections[b.section];
|
70
|
|
71
|
if (typeof aId !== "number" || typeof bId !== "number") {
|
72
|
throw new Error("Section id not found");
|
73
|
}
|
74
|
|
75
|
return aId - bId;
|
76
|
});
|
77
|
}
|
78
|
export function orderedInsertNode(m, n) {
|
79
|
assertHasLoc(n);
|
80
|
var didInsert = false;
|
81
|
|
82
|
if (n.type === "ModuleExport") {
|
83
|
m.fields.push(n);
|
84
|
return;
|
85
|
}
|
86
|
|
87
|
m.fields = m.fields.reduce(function (acc, field) {
|
88
|
var fieldEndCol = Infinity;
|
89
|
|
90
|
if (field.loc != null) {
|
91
|
// $FlowIgnore
|
92
|
fieldEndCol = field.loc.end.column;
|
93
|
} // $FlowIgnore: assertHasLoc ensures that
|
94
|
|
95
|
|
96
|
if (didInsert === false && n.loc.start.column < fieldEndCol) {
|
97
|
didInsert = true;
|
98
|
acc.push(n);
|
99
|
}
|
100
|
|
101
|
acc.push(field);
|
102
|
return acc;
|
103
|
}, []); // Handles empty modules or n is the last element
|
104
|
|
105
|
if (didInsert === false) {
|
106
|
m.fields.push(n);
|
107
|
}
|
108
|
}
|
109
|
export function assertHasLoc(n) {
|
110
|
if (n.loc == null || n.loc.start == null || n.loc.end == null) {
|
111
|
throw new Error("Internal failure: node (".concat(JSON.stringify(n.type), ") has no location information"));
|
112
|
}
|
113
|
}
|
114
|
export function getEndOfSection(s) {
|
115
|
assertHasLoc(s.size);
|
116
|
return s.startOffset + s.size.value + ( // $FlowIgnore
|
117
|
s.size.loc.end.column - s.size.loc.start.column);
|
118
|
}
|
119
|
export function shiftLoc(node, delta) {
|
120
|
// $FlowIgnore
|
121
|
node.loc.start.column += delta; // $FlowIgnore
|
122
|
|
123
|
node.loc.end.column += delta;
|
124
|
}
|
125
|
export function shiftSection(ast, node, delta) {
|
126
|
if (node.type !== "SectionMetadata") {
|
127
|
throw new Error("Can not shift node " + JSON.stringify(node.type));
|
128
|
}
|
129
|
|
130
|
node.startOffset += delta;
|
131
|
|
132
|
if (_typeof(node.size.loc) === "object") {
|
133
|
shiftLoc(node.size, delta);
|
134
|
} // Custom sections doesn't have vectorOfSize
|
135
|
|
136
|
|
137
|
if (_typeof(node.vectorOfSize) === "object" && _typeof(node.vectorOfSize.loc) === "object") {
|
138
|
shiftLoc(node.vectorOfSize, delta);
|
139
|
}
|
140
|
|
141
|
var sectionName = node.section; // shift node locations within that section
|
142
|
|
143
|
traverse(ast, {
|
144
|
Node: function Node(_ref3) {
|
145
|
var node = _ref3.node;
|
146
|
var section = getSectionForNode(node);
|
147
|
|
148
|
if (section === sectionName && _typeof(node.loc) === "object") {
|
149
|
shiftLoc(node, delta);
|
150
|
}
|
151
|
}
|
152
|
});
|
153
|
}
|
154
|
export function signatureForOpcode(object, name) {
|
155
|
var opcodeName = name;
|
156
|
|
157
|
if (object !== undefined && object !== "") {
|
158
|
opcodeName = object + "." + name;
|
159
|
}
|
160
|
|
161
|
var sign = signatures[opcodeName];
|
162
|
|
163
|
if (sign == undefined) {
|
164
|
// TODO: Uncomment this when br_table and others has been done
|
165
|
//throw new Error("Invalid opcode: "+opcodeName);
|
166
|
return [object, object];
|
167
|
}
|
168
|
|
169
|
return sign[0];
|
170
|
}
|
171
|
export function getUniqueNameGenerator() {
|
172
|
var inc = {};
|
173
|
return function () {
|
174
|
var prefix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp";
|
175
|
|
176
|
if (!(prefix in inc)) {
|
177
|
inc[prefix] = 0;
|
178
|
} else {
|
179
|
inc[prefix] = inc[prefix] + 1;
|
180
|
}
|
181
|
|
182
|
return prefix + "_" + inc[prefix];
|
183
|
};
|
184
|
}
|
185
|
export function getStartByteOffset(n) {
|
186
|
// $FlowIgnore
|
187
|
if (typeof n.loc === "undefined" || typeof n.loc.start === "undefined") {
|
188
|
throw new Error( // $FlowIgnore
|
189
|
"Can not get byte offset without loc informations, node: " + String(n.id));
|
190
|
}
|
191
|
|
192
|
return n.loc.start.column;
|
193
|
}
|
194
|
export function getEndByteOffset(n) {
|
195
|
// $FlowIgnore
|
196
|
if (typeof n.loc === "undefined" || typeof n.loc.end === "undefined") {
|
197
|
throw new Error("Can not get byte offset without loc informations, node: " + n.type);
|
198
|
}
|
199
|
|
200
|
return n.loc.end.column;
|
201
|
}
|
202
|
export function getFunctionBeginingByteOffset(n) {
|
203
|
if (!(n.body.length > 0)) {
|
204
|
throw new Error('n.body.length > 0' + " error: " + (undefined || "unknown"));
|
205
|
}
|
206
|
|
207
|
var _n$body = _slicedToArray(n.body, 1),
|
208
|
firstInstruction = _n$body[0];
|
209
|
|
210
|
return getStartByteOffset(firstInstruction);
|
211
|
}
|
212
|
export function getEndBlockByteOffset(n) {
|
213
|
// $FlowIgnore
|
214
|
if (!(n.instr.length > 0 || n.body.length > 0)) {
|
215
|
throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown"));
|
216
|
}
|
217
|
|
218
|
var lastInstruction;
|
219
|
|
220
|
if (n.instr) {
|
221
|
// $FlowIgnore
|
222
|
lastInstruction = n.instr[n.instr.length - 1];
|
223
|
}
|
224
|
|
225
|
if (n.body) {
|
226
|
// $FlowIgnore
|
227
|
lastInstruction = n.body[n.body.length - 1];
|
228
|
}
|
229
|
|
230
|
if (!(_typeof(lastInstruction) === "object")) {
|
231
|
throw new Error('typeof lastInstruction === "object"' + " error: " + (undefined || "unknown"));
|
232
|
}
|
233
|
|
234
|
// $FlowIgnore
|
235
|
return getStartByteOffset(lastInstruction);
|
236
|
}
|
237
|
export function getStartBlockByteOffset(n) {
|
238
|
// $FlowIgnore
|
239
|
if (!(n.instr.length > 0 || n.body.length > 0)) {
|
240
|
throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown"));
|
241
|
}
|
242
|
|
243
|
var fistInstruction;
|
244
|
|
245
|
if (n.instr) {
|
246
|
// $FlowIgnore
|
247
|
var _n$instr = _slicedToArray(n.instr, 1);
|
248
|
|
249
|
fistInstruction = _n$instr[0];
|
250
|
}
|
251
|
|
252
|
if (n.body) {
|
253
|
// $FlowIgnore
|
254
|
var _n$body2 = _slicedToArray(n.body, 1);
|
255
|
|
256
|
fistInstruction = _n$body2[0];
|
257
|
}
|
258
|
|
259
|
if (!(_typeof(fistInstruction) === "object")) {
|
260
|
throw new Error('typeof fistInstruction === "object"' + " error: " + (undefined || "unknown"));
|
261
|
}
|
262
|
|
263
|
// $FlowIgnore
|
264
|
return getStartByteOffset(fistInstruction);
|
265
|
}
|