Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | 916x 916x 8x 908x 908x 908x 908x 3847x 637x 504x 133x 1322x 1322x 818x 383x 383x 383x 2231x 121x 121x 8x 8x 12x 12x 319x 247x 4x 8487x 108x 74x 185x 15x 363x 127x 28x 23x 9547x 12x 9535x 8670x 7733x 89x 588x 91x 12913x 12913x 2416x 4448x 237x 237x 240x 908x 50x 504x 637x | import { type Node } from "estree";
import type { CoverageMapData } from "istanbul-lib-coverage";
import { getWalker } from "./ast";
import { CoverageMapper } from "./coverage-mapper";
import { getIgnoreHints } from "./ignore-hints";
import { type Options } from "./types";
export { convert, Options };
/**
* Maps V8 `ScriptCoverage` to Istanbul's `CoverageMap`.
* Results are identical with `istanbul-lib-instrument`.
*/
export default async function convert<T = Node, Program = T & { type: "Program" }>(
options: Options<T, Program>,
): Promise<CoverageMapData> {
const ignoreHints = getIgnoreHints(options.code);
// File ignore contains always only 1 entry
if (ignoreHints.length === 1 && ignoreHints[0].type === "file") {
return {};
}
const walker = getWalker();
const mapper = await CoverageMapper.create<T, Program>(options, walker.onIgnore);
const ast = await options.ast;
await walker.walk(ast, ignoreHints, options.ignoreClassMethods, {
// Functions
onFunctionDeclaration(node) {
mapper.onFunction(node, {
loc: node.body,
decl: node.id || { ...node, end: node.start + 1 },
});
},
onFunctionExpression(node) {
if (isCovered(node)) {
return;
}
mapper.onFunction(node, {
loc: node.body,
decl: node.id || { ...node, end: node.start + 1 },
});
},
onArrowFunctionExpression(node) {
mapper.onFunction(node, {
loc: node.body,
decl: { ...node, end: node.start + 1 },
});
// Implicit return-statement of bodyless arrow function
if (node.body.type !== "BlockStatement") {
mapper.onStatement(node.body, node);
}
},
onMethodDefinition(node) {
Eif (node.value.type === "FunctionExpression") {
setCovered(node.value);
}
mapper.onFunction(node, {
loc: node.value.body,
decl: node.key,
});
},
onProperty(node) {
if (node.value.type === "FunctionExpression") {
setCovered(node.value);
mapper.onFunction(node, {
loc: node.value.body,
decl: node.key,
});
}
},
onClassMethod(babelNode) {
const node: Node = {
type: "FunctionExpression",
start: babelNode.start!,
end: babelNode.end!,
body: {
type: "BlockStatement",
start: babelNode.body.start!,
end: babelNode.body.end!,
body: [],
},
params: [],
};
mapper.onFunction(node, {
loc: node.body,
decl: {
start: babelNode.key.start!,
end: babelNode.key.end!,
},
});
},
onObjectMethod(babelNode) {
const node: Node = {
type: "FunctionExpression",
start: babelNode.start!,
end: babelNode.end!,
body: {
type: "BlockStatement",
start: babelNode.body.start!,
end: babelNode.body.end!,
body: [],
},
params: [],
};
mapper.onFunction(node, {
loc: node.body,
decl: {
start: babelNode.key.start!,
end: babelNode.key.end!,
},
});
},
// Statements
onBreakStatement: (node) => mapper.onStatement(node),
onContinueStatement: (node) => mapper.onStatement(node),
onDebuggerStatement: (node) => mapper.onStatement(node),
onReturnStatement: (node) => mapper.onStatement(node),
onThrowStatement: (node) => mapper.onStatement(node),
onTryStatement: (node) => mapper.onStatement(node),
onForStatement: (node) => mapper.onStatement(node),
onForInStatement: (node) => mapper.onStatement(node),
onForOfStatement: (node) => mapper.onStatement(node),
onWhileStatement: (node) => mapper.onStatement(node),
onDoWhileStatement: (node) => mapper.onStatement(node),
onWithStatement: (node) => mapper.onStatement(node),
onLabeledStatement: (node) => mapper.onStatement(node),
onExpressionStatement(node) {
if (node.expression.type === "Literal" && node.expression.value === "use strict") {
return;
}
mapper.onStatement(node);
},
onVariableDeclarator(node) {
if (node.init) {
mapper.onStatement(node.init, node);
}
},
onClassBody(node) {
for (const child of node.body) {
if (
(child.type === "PropertyDefinition" ||
child.type === "ClassProperty" ||
child.type === "ClassPrivateProperty") &&
child.value
) {
mapper.onStatement(child.value as Node);
}
}
},
// Branches
onIfStatement(node, branches) {
mapper.onBranch("if", node, branches);
mapper.onStatement(node);
},
onConditionalExpression(node, branches) {
mapper.onBranch("cond-expr", node, branches);
},
onLogicalExpression(node, branches) {
mapper.onBranch("binary-expr", node, branches);
},
onSwitchStatement(node, cases) {
mapper.onBranch("switch", node, cases);
mapper.onStatement(node);
},
onAssignmentPattern(node) {
mapper.onBranch("default-arg", node, [node.right]);
},
});
return mapper.generate();
}
const coveredNodes = new WeakSet<Node>();
function setCovered(node: Node) {
coveredNodes.add(node);
}
function isCovered(node: Node) {
return coveredNodes.has(node);
}
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