Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 86 insertions, 0 deletions

diff --git a/js/src/wasm/GenerateIntrinsics.py b/js/src/wasm/GenerateIntrinsics.py
new file mode 100644
index 0000000000..f822722dcd
--- /dev/null
+++ b/js/src/wasm/GenerateIntrinsics.py
@@ -0,0 +1,86 @@
+from collections import OrderedDict
+
+import buildconfig
+import six
+import yaml
+from mozbuild.preprocessor import Preprocessor
+
+HEADER_TEMPLATE = """\
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef %(includeguard)s
+#define %(includeguard)s
+
+/* This file is generated by wasm/GenerateInstrinsic.py. Do not edit! */
+
+%(contents)s
+
+#endif // %(includeguard)s
+"""
+
+
+def generate_header(c_out, includeguard, contents):
+    c_out.write(
+        HEADER_TEMPLATE
+        % {
+            "includeguard": includeguard,
+            "contents": contents,
+        }
+    )
+
+
+def load_yaml(yaml_path):
+    # First invoke preprocessor.py so that we can use #ifdef JS_SIMULATOR in
+    # the YAML file.
+    pp = Preprocessor()
+    pp.context.update(buildconfig.defines["ALLDEFINES"])
+    pp.out = six.StringIO()
+    pp.do_filter("substitution")
+    pp.do_include(yaml_path)
+    contents = pp.out.getvalue()
+
+    # Load into an OrderedDict to ensure order is preserved. Note: Python 3.7+
+    # also preserves ordering for normal dictionaries.
+    # Code based on https://stackoverflow.com/a/21912744.
+    class OrderedLoader(yaml.Loader):
+        pass
+
+    def construct_mapping(loader, node):
+        loader.flatten_mapping(node)
+        return OrderedDict(loader.construct_pairs(node))
+
+    tag = yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG
+    OrderedLoader.add_constructor(tag, construct_mapping)
+    return yaml.load(contents, OrderedLoader)
+
+
+def main(c_out, yaml_path):
+    data = load_yaml(yaml_path)
+
+    # Interate for all defined intrinsics
+    contents = "#define FOR_EACH_INTRINSIC(M) \\\n"
+    for i in range(len(data)):
+        op = data[i]
+        sa = op["symbolic_address"]
+        contents += (
+            f"    M({op['op']}, \"{op['export']}\", "
+            f"{sa['name']}, {sa['type']}, {op['entry']}, {i})\\\n"
+        )
+    contents += "\n"
+
+    for op in data:
+        # Define DECLARE_INTRINSIC_SAS_PARAM_VALTYPES_<op> as:
+        # `{ValType::I32, ValType::I32, ...}`.
+        contents += (
+            f"#define DECLARE_INTRINSIC_SAS_PARAM_VALTYPES_{op['op']} "
+            f"{{ValType::{', ValType::'.join(op['params'])}}}\n"
+        )
+        # Define DECLARE_INTRINSIC_PARAM_TYPES_<op> as:
+        # `<num_types>, {_PTR, _I32, ..., _PTR, _END}`.
+        sas_types = f"{{_PTR{''.join(', _' + p for p in op['params'])}, _PTR, _END}}"
+        num_types = len(op["params"]) + 2
+        contents += f"#define DECLARE_INTRINSIC_PARAM_TYPES_{op['op']} {num_types}, {sas_types}\n"
+
+    generate_header(c_out, "wasm_WasmIntrinsicGenerated_h", contents)