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/*
* Copyright 2017 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef wasm_ir_module_h
#define wasm_ir_module_h
#include "wasm.h"
namespace wasm {
namespace ModuleUtils {
// Computes the indexes in a wasm binary, i.e., with function imports
// and function implementations sharing a single index space, etc.
struct BinaryIndexes {
std::unordered_map<Name, Index> functionIndexes;
std::unordered_map<Name, Index> globalIndexes;
BinaryIndexes(Module& wasm) {
for (Index i = 0; i < wasm.imports.size(); i++) {
auto& import = wasm.imports[i];
if (import->kind == ExternalKind::Function) {
auto index = functionIndexes.size();
functionIndexes[import->name] = index;
} else if (import->kind == ExternalKind::Global) {
auto index = globalIndexes.size();
globalIndexes[import->name] = index;
}
}
for (Index i = 0; i < wasm.functions.size(); i++) {
auto index = functionIndexes.size();
functionIndexes[wasm.functions[i]->name] = index;
}
for (Index i = 0; i < wasm.globals.size(); i++) {
auto index = globalIndexes.size();
globalIndexes[wasm.globals[i]->name] = index;
}
}
};
} // namespace ModuleUtils
} // namespace wasm
#endif // wasm_ir_module_h
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