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1# @webassemblyjs/ast
2
3> AST utils for webassemblyjs
4
5## Installation
6
7```sh
8yarn add @webassemblyjs/ast
9```
10
11## Usage
12
13### Traverse
14
15```js
16import { traverse } from "@webassemblyjs/ast";
17
18traverse(ast, {
19 Module(path) {
20 console.log(path.node);
21 }
22});
23```
24
25### Instruction signatures
26
27```js
28import { signatures } from "@webassemblyjs/ast";
29
30console.log(signatures);
31```
32
33### Path methods
34
35- `findParent: NodeLocator`
36- `replaceWith: Node => void`
37- `remove: () => void`
38- `insertBefore: Node => void`
39- `insertAfter: Node => void`
40- `stop: () => void`
41
42### AST utils
43
44- function `module(id, fields, metadata)`
45- function `moduleMetadata(sections, functionNames, localNames)`
46- function `moduleNameMetadata(value)`
47- function `functionNameMetadata(value, index)`
48- function `localNameMetadata(value, localIndex, functionIndex)`
49- function `binaryModule(id, blob)`
50- function `quoteModule(id, string)`
51- function `sectionMetadata(section, startOffset, size, vectorOfSize)`
52- function `loopInstruction(label, resulttype, instr)`
53- function `instruction(id, args, namedArgs)`
54- function `objectInstruction(id, object, args, namedArgs)`
55- function `ifInstruction(testLabel, test, result, consequent, alternate)`
56- function `stringLiteral(value)`
57- function `numberLiteralFromRaw(value, raw)`
58- function `longNumberLiteral(value, raw)`
59- function `floatLiteral(value, nan, inf, raw)`
60- function `elem(table, offset, funcs)`
61- function `indexInFuncSection(index)`
62- function `valtypeLiteral(name)`
63- function `typeInstruction(id, functype)`
64- function `start(index)`
65- function `globalType(valtype, mutability)`
66- function `leadingComment(value)`
67- function `blockComment(value)`
68- function `data(memoryIndex, offset, init)`
69- function `global(globalType, init, name)`
70- function `table(elementType, limits, name, elements)`
71- function `memory(limits, id)`
72- function `funcImportDescr(id, signature)`
73- function `moduleImport(module, name, descr)`
74- function `moduleExportDescr(exportType, id)`
75- function `moduleExport(name, descr)`
76- function `limit(min, max)`
77- function `signature(params, results)`
78- function `program(body)`
79- function `identifier(value, raw)`
80- function `blockInstruction(label, instr, result)`
81- function `callInstruction(index, instrArgs)`
82- function `callIndirectInstruction(signature, intrs)`
83- function `byteArray(values)`
84- function `func(name, signature, body, isExternal, metadata)`
85- Constant`isModule`
86- Constant`isModuleMetadata`
87- Constant`isModuleNameMetadata`
88- Constant`isFunctionNameMetadata`
89- Constant`isLocalNameMetadata`
90- Constant`isBinaryModule`
91- Constant`isQuoteModule`
92- Constant`isSectionMetadata`
93- Constant`isLoopInstruction`
94- Constant`isInstruction`
95- Constant`isObjectInstruction`
96- Constant`isIfInstruction`
97- Constant`isStringLiteral`
98- Constant`isNumberLiteral`
99- Constant`isLongNumberLiteral`
100- Constant`isFloatLiteral`
101- Constant`isElem`
102- Constant`isIndexInFuncSection`
103- Constant`isValtypeLiteral`
104- Constant`isTypeInstruction`
105- Constant`isStart`
106- Constant`isGlobalType`
107- Constant`isLeadingComment`
108- Constant`isBlockComment`
109- Constant`isData`
110- Constant`isGlobal`
111- Constant`isTable`
112- Constant`isMemory`
113- Constant`isFuncImportDescr`
114- Constant`isModuleImport`
115- Constant`isModuleExportDescr`
116- Constant`isModuleExport`
117- Constant`isLimit`
118- Constant`isSignature`
119- Constant`isProgram`
120- Constant`isIdentifier`
121- Constant`isBlockInstruction`
122- Constant`isCallInstruction`
123- Constant`isCallIndirectInstruction`
124- Constant`isByteArray`
125- Constant`isFunc`
126- Constant`assertModule`
127- Constant`assertModuleMetadata`
128- Constant`assertModuleNameMetadata`
129- Constant`assertFunctionNameMetadata`
130- Constant`assertLocalNameMetadata`
131- Constant`assertBinaryModule`
132- Constant`assertQuoteModule`
133- Constant`assertSectionMetadata`
134- Constant`assertLoopInstruction`
135- Constant`assertInstruction`
136- Constant`assertObjectInstruction`
137- Constant`assertIfInstruction`
138- Constant`assertStringLiteral`
139- Constant`assertNumberLiteral`
140- Constant`assertLongNumberLiteral`
141- Constant`assertFloatLiteral`
142- Constant`assertElem`
143- Constant`assertIndexInFuncSection`
144- Constant`assertValtypeLiteral`
145- Constant`assertTypeInstruction`
146- Constant`assertStart`
147- Constant`assertGlobalType`
148- Constant`assertLeadingComment`
149- Constant`assertBlockComment`
150- Constant`assertData`
151- Constant`assertGlobal`
152- Constant`assertTable`
153- Constant`assertMemory`
154- Constant`assertFuncImportDescr`
155- Constant`assertModuleImport`
156- Constant`assertModuleExportDescr`
157- Constant`assertModuleExport`
158- Constant`assertLimit`
159- Constant`assertSignature`
160- Constant`assertProgram`
161- Constant`assertIdentifier`
162- Constant`assertBlockInstruction`
163- Constant`assertCallInstruction`
164- Constant`assertCallIndirectInstruction`
165- Constant`assertByteArray`
166- Constant`assertFunc`
167