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Add 'instantiate<T>' builtin (like 'new' but from a type), see #349

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dcodeIO
2018-11-29 15:28:08 +01:00
parent 1d93877e7c
commit 1149abf824
4 changed files with 35 additions and 5 deletions
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19
src/builtins.ts
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@ -2322,6 +2322,25 @@ export function compileCall(
// thus must be used with care. it exists because it *might* be useful in specific scenarios.
return module.createCallIndirect(arg0, operandExprs, typeName);
}
case "instantiate": {
if (!(typeArguments && typeArguments.length == 1)) {
if (typeArguments && typeArguments.length) compiler.currentType = typeArguments[0];
compiler.error(
DiagnosticCode.Expected_0_type_arguments_but_got_1,
reportNode.range, "1", typeArguments ? typeArguments.length.toString(10) : "0"
);
return module.createUnreachable();
}
let classInstance = typeArguments[0].classReference;
if (!classInstance) {
compiler.error(
DiagnosticCode.Operation_not_supported,
reportNode.range
);
return module.createUnreachable();
}
return compiler.compileInstantiate(classInstance, operands, reportNode);
}
// user-defined diagnostic macros