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Simplify generating return object code

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This commit is contained in:
zodern
2022-12-29 13:28:38 -06:00
parent 707d4a3c68
commit 11a8f07292
1 changed files with 30 additions and 29 deletions
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59
tools/isobuild/linker.js
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@@ -1005,7 +1005,7 @@ function getImportCode(imports, header, omitVar) {
return buf;
}
var getFooter = function ({
function getFooter ({
name,
exported,
mainModulePath,
@@ -1017,41 +1017,42 @@ var getFooter = function ({
return '\n})();\n';
}
var chunks = [];
let chunks = [];
let returnObj = Object.create(null);
chunks.push("\n\n/* Exports */\n");
chunks.push('return {\n');
if (! _.isEmpty(exported)) {
const scratch = {};
_.each(exported, symbol => scratch[symbol] = symbol);
const symbolTree = writeSymbolTree(buildSymbolTree(scratch), 4);
returnObj.export = `function () { return ${symbolTree};}`;
}
// Even if there are no exports, we need to define Package.foo,
// because the existence of Package.foo is how another package
// (e.g., one that weakly depends on foo) can tell if foo is loaded.
if (! _.isEmpty(exported)) {
const scratch = {};
_.each(exported, symbol => scratch[symbol] = symbol);
const symbolTree = writeSymbolTree(buildSymbolTree(scratch));
chunks.push("export: function () { return ", symbolTree);
chunks.push(';},\n');
if (eagerModulePaths && eagerModulePaths.length > 0) {
returnObj.require = 'require';
let modulePaths = eagerModulePaths.map(path => ` ${JSON.stringify(path)}`);
returnObj.eagerModulePaths = `[\n${modulePaths.join(',\n')}\n ]`;
}
if (mainModulePath) {
returnObj.mainModulePath = JSON.stringify(mainModulePath);
}
chunks.push("\n\n/* Exports */\n");
chunks.push('return {\n');
let entries = Object.entries(returnObj);
entries.forEach(([ key, value ], index) => {
chunks.push(` ${key}: ${value}`);
if (index !== entries.length - 1) {
chunks.push(',\n');
}
if (eagerModulePaths && eagerModulePaths.length > 0) {
chunks.push(' require: require,\n eagerModulePaths: [\n');
eagerModulePaths.forEach((path, index) => {
if (index > 0) {
chunks.push(',\n');
}
chunks.push(` ${JSON.stringify(path)}`);
});
chunks.push('\n ]');
}
if (mainModulePath) {
chunks.push(`,\n mainModulePath: ${JSON.stringify(mainModulePath)}`);
}
chunks.push('};\n');
});
chunks.push("\n});\n");
chunks.push("\n}});\n");
return chunks.join('');
};
}
function wrapWithHeaderAndFooter(files, header, footer) {
// Bias the source map by the length of the header without