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Add an option to alias global objects

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This for example allows to switch the default 'Math' implementation a program will use. Uses 'NativeMath' by default.
This commit is contained in:
dcodeIO
2018-03-26 16:54:25 +02:00
parent e75d006d26
commit 792202ac5a
14 changed files with 186 additions and 167 deletions
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16
bin/asc.js
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@ -363,6 +363,22 @@ exports.main = function main(argv, options, callback) {
assemblyscript.setImportTable(compilerOptions, !!args.importTable);
assemblyscript.setMemoryBase(compilerOptions, args.memoryBase >>> 0);
assemblyscript.setSourceMap(compilerOptions, args.sourceMap != null);
assemblyscript.setGlobalAlias(compilerOptions, "Math", "NativeMath");
// Add or override global aliases if specified
var aliases = args.use;
if (aliases != null) {
if (typeof aliases === "string") aliases = aliases.split(",");
for (let i = 0, k = aliases.length; i < k; ++i) {
let part = aliases[i];
let p = part.indexOf("=");
if (p < 0) return callback(Error("Global alias '" + part + "' is invalid."));
let name = part.substring(0, p).trim();
let alias = part.substring(p + 1).trim();
if (!name.length || !alias.length) return callback(Error("Global alias '" + part + "' is invalid."));
assemblyscript.setGlobalAlias(compilerOptions, name, alias);
}
}
var module;
stats.compileCount++;