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[Python/JS/TS] Codegen SizeOf method for structs (#6136)

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* [Python] Codegen SizeOf classmethod for structs

This codegens a `SizeOf()` classmethod for all structs since we can't
determine the size of a FlatBuffer generated struct from Python otherwise.

* [JS/TS] Codegen sizeOf static method for structs

This codegens a `sizeOf()` static method for all structs since we can't
determine the size of a FlatBuffer generated struct from JavaScript or
TypeScript otherwise.
This commit is contained in:
Anass Al
2020-09-28 08:54:50 -07:00
committed by GitHub
parent 641309a5bf
commit 689bfafa7e
14 changed files with 133 additions and 0 deletions
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12
src/idl_gen_js_ts.cpp
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@@ -1795,6 +1795,18 @@ class JsTsGenerator : public BaseGenerator {
code += "}\n\n";
}
// Emit the size of the struct.
if (struct_def.fixed) {
GenDocComment(code_ptr, GenTypeAnnotation(kReturns, "number", "", false));
if (lang_.language == IDLOptions::kTs) {
code += "static sizeOf():number {\n";
} else {
code += object_name + ".sizeOf = function() {\n";
}
code += " return " + NumToString(struct_def.bytesize) + ";\n";
code += "}\n\n";
}
// Emit a factory constructor
if (struct_def.fixed) {
std::string annotations =