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/*
* Copyright 2016 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_ast_utils_h
#define wasm_ast_utils_h
#include "wasm.h"
#include "wasm-traversal.h"
namespace wasm {
struct BreakSeeker : public WasmWalker<BreakSeeker> {
Name target; // look for this one
size_t found;
BreakSeeker(Name target) : target(target), found(false) {}
void visitBreak(Break *curr) {
if (curr->name == target) found++;
}
static bool has(Expression* tree, Name target) {
BreakSeeker breakSeeker(target);
breakSeeker.walk(tree);
return breakSeeker.found > 0;
}
};
} // namespace wasm
#endif // wasm_ast_utils_h
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