1 files changed, 98 insertions, 0 deletions
diff --git a/src/parser/context-defs.cpp b/src/parser/context-defs.cpp
new file mode 100644
index 000000000..ca8f61ec3
--- /dev/null
+++ b/src/parser/context-defs.cpp
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2023 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.
+ */
+
+#include "contexts.h"
+
+namespace wasm::WATParser {
+
+Result<typename ParseDefsCtx::TypeUseT>
+ParseDefsCtx::makeTypeUse(Index pos,
+                          std::optional<HeapTypeT> type,
+                          ParamsT* params,
+                          ResultsT* results) {
+  if (type && (params || results)) {
+    std::vector<Type> paramTypes;
+    if (params) {
+      paramTypes = getUnnamedTypes(*params);
+    }
+
+    std::vector<Type> resultTypes;
+    if (results) {
+      resultTypes = *results;
+    }
+
+    auto sig = Signature(Type(paramTypes), Type(resultTypes));
+
+    if (!type->isSignature() || type->getSignature() != sig) {
+      return in.err(pos, "type does not match provided signature");
+    }
+  }
+
+  if (type) {
+    return *type;
+  }
+
+  auto it = implicitTypes.find(pos);
+  assert(it != implicitTypes.end());
+  return it->second;
+}
+
+Result<> ParseDefsCtx::addFunc(Name,
+                               const std::vector<Name>&,
+                               ImportNames*,
+                               TypeUseT,
+                               std::optional<LocalsT>,
+                               std::optional<InstrsT>,
+                               Index pos) {
+  CHECK_ERR(withLoc(pos, irBuilder.visitEnd()));
+  auto body = irBuilder.build();
+  CHECK_ERR(withLoc(pos, body));
+  wasm.functions[index]->body = *body;
+  return Ok{};
+}
+
+Result<> ParseDefsCtx::addGlobal(Name,
+                                 const std::vector<Name>&,
+                                 ImportNames*,
+                                 GlobalTypeT,
+                                 std::optional<ExprT> exp,
+                                 Index) {
+  if (exp) {
+    wasm.globals[index]->init = *exp;
+  }
+  return Ok{};
+}
+
+Result<> ParseDefsCtx::addData(
+  Name, Name* mem, std::optional<ExprT> offset, DataStringT, Index pos) {
+  auto& d = wasm.dataSegments[index];
+  if (offset) {
+    d->isPassive = false;
+    d->offset = *offset;
+    if (mem) {
+      d->memory = *mem;
+    } else if (wasm.memories.size() > 0) {
+      d->memory = wasm.memories[0]->name;
+    } else {
+      return in.err(pos, "active segment with no memory");
+    }
+  } else {
+    d->isPassive = true;
+  }
+  return Ok{};
+}
+
+} // namespace wasm::WATParser