2017-05-12 19:53:07 +00:00
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#!python
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import json
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# comment.
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2017-06-20 22:42:29 +00:00
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classes = []
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2017-05-12 19:53:07 +00:00
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def generate_bindings(path):
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2017-06-20 22:42:29 +00:00
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global classes
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2017-05-12 19:53:07 +00:00
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classes = json.load(open(path))
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icalls = set()
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for c in classes:
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# print c['name']
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used_classes = get_used_classes(c)
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header = generate_class_header(used_classes, c)
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impl = generate_class_implementation(icalls, used_classes, c)
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header_file = open("include/" + strip_name(c["name"]) + ".hpp", "w+")
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header_file.write(header)
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source_file = open("src/" + strip_name(c["name"]) + ".cpp", "w+")
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source_file.write(impl)
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icall_header_file = open("src/__icalls.hpp", "w+")
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icall_header_file.write(generate_icall_header(icalls))
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icall_source_file = open("src/__icalls.cpp", "w+")
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icall_source_file.write(generate_icall_implementation(icalls))
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2017-06-20 22:42:29 +00:00
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def is_reference_type(t):
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for c in classes:
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if c['name'] != t:
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continue
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if c['is_reference']:
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return True
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return False
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def make_gdnative_type(t):
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if is_class_type(t):
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if is_reference_type(t):
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return "Ref<" + strip_name(t) + "> "
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else:
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return strip_name(t) + " *"
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else:
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2017-07-23 15:14:50 +00:00
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if t == "int":
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return "int64_t "
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if t == "float" or t == "real":
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return "double "
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2017-06-20 22:42:29 +00:00
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return strip_name(t) + " "
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2017-05-12 19:53:07 +00:00
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def generate_class_header(used_classes, c):
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source = []
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source.append("#ifndef GODOT_CPP_" + strip_name(c["name"]).upper() + "_HPP")
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source.append("#define GODOT_CPP_" + strip_name(c["name"]).upper() + "_HPP")
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source.append("")
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source.append("#if defined(_WIN32) && defined(_GD_CPP_BINDING_IMPL)")
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source.append("# define GD_CPP_BINDING_API __declspec(dllexport)")
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source.append("#elif defined(_WIN32)")
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source.append("# define GD_CPP_BINDING_API __declspec(dllimport)")
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source.append("#else")
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source.append("# define GD_CPP_BINDING_API")
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source.append("#endif");
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source.append("")
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source.append("")
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source.append("")
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source.append("")
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source.append("#include <godot.h>")
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2017-07-23 15:14:50 +00:00
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source.append("#include <stdint.h>")
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2017-05-12 19:53:07 +00:00
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source.append("")
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source.append("#include <CoreTypes.hpp>")
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2017-06-20 22:42:29 +00:00
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source.append("#include <Ref.hpp>")
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2017-05-12 19:53:07 +00:00
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if c["base_class"] != "":
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source.append("#include <" + strip_name(c["base_class"]) + ".hpp>")
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source.append("namespace godot {")
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source.append("")
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for used_type in used_classes:
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source.append("class " + strip_name(used_type) + ";")
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source.append("")
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# generate the class definition here
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source.append("class GD_CPP_BINDING_API " + strip_name(c["name"]) + ("" if c["base_class"] == "" else (" : public " + strip_name(c["base_class"])) ) + " {")
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source.append("public:")
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source.append("")
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# ___get_class_name
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source.append("\tstatic inline char *___get_class_name() { return (char *) \"" + strip_name(c["name"]) + "\"; }")
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source.append("\t// constants")
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for name in c["constants"]:
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source.append("\tconst static int " + name + " = " + str(c["constants"][name]) + ";")
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2017-06-19 00:03:59 +00:00
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2017-05-12 19:53:07 +00:00
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2017-06-19 00:03:59 +00:00
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if c["instanciable"]:
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source.append("\tstatic void *operator new(size_t);")
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source.append("\tstatic void operator delete(void *);")
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2017-05-12 19:53:07 +00:00
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source.append("")
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source.append("\n\t// methods")
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for method in c["methods"]:
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method_signature = ""
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method_signature += "static " if c["singleton"] else ""
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2017-06-20 22:42:29 +00:00
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method_signature += make_gdnative_type(method["return_type"])
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2017-05-12 19:53:07 +00:00
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method_signature += escape_cpp(method["name"]) + "("
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2017-06-20 22:42:29 +00:00
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2017-05-12 19:53:07 +00:00
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has_default_argument = False
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for i, argument in enumerate(method["arguments"]):
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2017-06-20 22:42:29 +00:00
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method_signature += "const " + make_gdnative_type(argument["type"])
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2017-05-12 19:53:07 +00:00
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method_signature += escape_cpp(argument["name"])
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# default arguments
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def escape_default_arg(_type, default_value):
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if _type == "Color":
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return "Color(" + default_value + ")"
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if _type == "bool" or _type == "int":
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return default_value.lower()
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if _type == "Array":
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return "Array()"
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if _type in ["PoolVector2Array", "PoolStringArray", "PoolVector3Array", "PoolColorArray"]:
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return _type + "()"
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if _type == "Vector2":
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return "Vector2" + default_value
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if _type == "Vector3":
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return "Vector3" + default_value
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if _type == "Transform":
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return "Transform()"
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if _type == "Transform2D":
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return "Transform2D()"
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if _type == "Rect2":
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return "Rect2" + default_value
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if _type == "Variant":
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return "Variant()" if default_value == "Null" else default_value
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if _type == "String":
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return "\"" + default_value + "\""
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if _type == "RID":
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return "RID()"
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if default_value == "Null" or default_value == "[Object:null]":
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return "nullptr"
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return default_value
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if argument["has_default_value"] or has_default_argument:
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method_signature += " = " + escape_default_arg(argument["type"], argument["default_value"])
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has_default_argument = True
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if i != len(method["arguments"]) - 1:
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method_signature += ", "
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if method["has_varargs"]:
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if len(method["arguments"]) > 0:
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method_signature += ", "
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method_signature += "const Array& __var_args = Array()"
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method_signature += ")" + (" const" if method["is_const"] and not c["singleton"] else "")
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source.append("\t" + method_signature + ";")
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source.append("};")
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source.append("")
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source.append("}")
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source.append("")
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source.append("#endif")
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return "\n".join(source)
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def generate_class_implementation(icalls, used_classes, c):
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source = []
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source.append("#include <" + strip_name(c["name"]) + ".hpp>")
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source.append("")
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source.append("")
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source.append("#include <CoreTypes.hpp>")
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2017-06-20 22:42:29 +00:00
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source.append("#include <Ref.hpp>")
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2017-05-12 19:53:07 +00:00
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source.append("#include <Godot.hpp>")
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source.append("")
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source.append("#include \"__icalls.hpp\"")
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source.append("")
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source.append("")
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for used_class in used_classes:
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source.append("#include <" + strip_name(used_class) + ".hpp>")
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source.append("")
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source.append("")
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source.append("namespace godot {")
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core_object_name = ("___static_object_" + strip_name(c["name"])) if c["singleton"] else "this"
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source.append("")
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source.append("")
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if c["singleton"]:
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source.append("static godot_object *" + core_object_name + ";")
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source.append("")
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source.append("")
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# FIXME Test if inlining has a huge impact on binary size
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source.append("static inline void ___singleton_init()")
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source.append("{")
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source.append("\tif (" + core_object_name + " == nullptr) {")
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2017-06-20 21:26:22 +00:00
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source.append("\t\t" + core_object_name + " = godot_global_get_singleton(\"" + strip_name(c["name"]) + "\");")
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2017-05-12 19:53:07 +00:00
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source.append("\t}")
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source.append("}")
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source.append("")
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source.append("")
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2017-06-19 00:03:59 +00:00
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if c["instanciable"]:
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source.append("void *" + strip_name(c["name"]) + "::operator new(size_t)")
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source.append("{")
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source.append("\treturn godot_get_class_constructor(\"" + c["name"] + "\")();")
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source.append("}")
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2017-05-12 19:53:07 +00:00
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2017-06-19 00:03:59 +00:00
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source.append("void " + strip_name(c["name"]) + "::operator delete(void *ptr)")
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source.append("{")
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source.append("\tgodot_object_destroy((godot_object *)ptr);")
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source.append("}")
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2017-05-12 19:53:07 +00:00
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for method in c["methods"]:
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method_signature = ""
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2017-06-20 22:42:29 +00:00
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method_signature += make_gdnative_type(method["return_type"])
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2017-05-12 19:53:07 +00:00
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method_signature += strip_name(c["name"]) + "::" + escape_cpp(method["name"]) + "("
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for i, argument in enumerate(method["arguments"]):
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2017-06-20 22:42:29 +00:00
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method_signature += "const " + make_gdnative_type(argument["type"])
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2017-05-12 19:53:07 +00:00
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method_signature += escape_cpp(argument["name"])
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if i != len(method["arguments"]) - 1:
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method_signature += ", "
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if method["has_varargs"]:
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if len(method["arguments"]) > 0:
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method_signature += ", "
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method_signature += "const Array& __var_args"
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method_signature += ")" + (" const" if method["is_const"] and not c["singleton"] else "")
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source.append(method_signature + " {")
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if c["singleton"]:
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source.append("\t___singleton_init();")
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source.append("\tstatic godot_method_bind *mb = NULL;")
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source.append("\tif (mb == NULL) {")
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source.append("\t\tmb = godot_method_bind_get_method(\"" + c["name"] +"\", \"" + method["name"] + "\");")
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source.append("\t}")
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return_statement = ""
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if method["return_type"] != "void":
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2017-06-20 22:42:29 +00:00
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if is_class_type(method["return_type"]):
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if is_reference_type(method["return_type"]):
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2017-06-21 00:14:54 +00:00
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return_statement += "return Ref<" + strip_name(method["return_type"]) + ">::__internal_constructor(";
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2017-06-20 22:42:29 +00:00
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else:
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return_statement += "return " + ("(" + strip_name(method["return_type"]) + " *) " if is_class_type(method["return_type"]) else "")
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else:
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return_statement += "return "
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2017-05-12 19:53:07 +00:00
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def get_icall_type_name(name):
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if is_class_type(name):
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return "Object"
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return name
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2017-06-20 22:42:29 +00:00
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if method["has_varargs"]:
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2017-05-16 07:00:17 +00:00
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if len(method["arguments"]) != 0:
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source.append("\tVariant __given_args[" + str(len(method["arguments"])) + "];")
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2017-05-12 19:53:07 +00:00
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for i, argument in enumerate(method["arguments"]):
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source.append("\tgodot_variant_new_nil((godot_variant *) &__given_args[" + str(i) + "]);")
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source.append("")
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for i, argument in enumerate(method["arguments"]):
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source.append("\t__given_args[" + str(i) + "] = " + escape_cpp(argument["name"]) + ";")
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source.append("")
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size = ""
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if method["has_varargs"]:
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size = "(__var_args.size() + " + str(len(method["arguments"])) + ")"
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else:
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size = "(" + str(len(method["arguments"])) + ")"
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source.append("\tgodot_variant **__args = (godot_variant **) alloca(sizeof(godot_variant *) * " + size + ");")
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source.append("")
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for i, argument in enumerate(method["arguments"]):
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source.append("\t__args[" + str(i) + "] = (godot_variant *) &__given_args[" + str(i) + "];")
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source.append("")
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if method["has_varargs"]:
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source.append("\tfor (int i = 0; i < __var_args.size(); i++) {")
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source.append("\t\t__args[i + " + str(len(method["arguments"])) + "] = (godot_variant *) &((Array &) __var_args)[i];")
|
|
|
|
source.append("\t}")
|
|
|
|
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("\tVariant __result;")
|
|
|
|
source.append("\t*(godot_variant *) &__result = godot_method_bind_call(mb, (godot_object *) " + core_object_name + ", (const godot_variant **) __args, " + size + ", nullptr);")
|
|
|
|
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
|
|
|
|
for i, argument in enumerate(method["arguments"]):
|
|
|
|
source.append("\tgodot_variant_destroy((godot_variant *) &__given_args[" + str(i) + "]);")
|
|
|
|
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
if method["return_type"] != "void":
|
|
|
|
cast = ""
|
|
|
|
if is_class_type(method["return_type"]):
|
2017-06-20 22:42:29 +00:00
|
|
|
if is_reference_type(method["return_type"]):
|
2017-06-21 00:14:54 +00:00
|
|
|
cast += "Ref<" + stip_name(method["return_type"]) + ">::__internal_constructor(__result);"
|
2017-06-20 22:42:29 +00:00
|
|
|
else:
|
|
|
|
cast += "(" + strip_name(method["return_type"]) + " *) (Object *) __result;"
|
|
|
|
else:
|
|
|
|
cast += "__result;"
|
|
|
|
source.append("\treturn " + cast)
|
2017-05-12 19:53:07 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
else:
|
|
|
|
|
|
|
|
args = []
|
|
|
|
for arg in method["arguments"]:
|
|
|
|
args.append(get_icall_type_name(arg["type"]))
|
|
|
|
|
|
|
|
icall_ret_type = get_icall_type_name(method["return_type"])
|
|
|
|
|
|
|
|
icall_sig = tuple((icall_ret_type, tuple(args)))
|
|
|
|
|
|
|
|
icalls.add(icall_sig)
|
|
|
|
|
|
|
|
icall_name = get_icall_name(icall_sig)
|
|
|
|
|
|
|
|
return_statement += icall_name + "(mb, (godot_object *) " + core_object_name
|
|
|
|
|
|
|
|
for arg in method["arguments"]:
|
2017-06-20 22:42:29 +00:00
|
|
|
return_statement += ", " + escape_cpp(arg["name"]) + (".ptr()" if is_reference_type(arg["type"]) else "")
|
2017-05-12 19:53:07 +00:00
|
|
|
|
|
|
|
return_statement += ")"
|
|
|
|
|
2017-06-20 22:42:29 +00:00
|
|
|
source.append("\t" + return_statement + (")" if is_reference_type(method["return_type"]) else "") + ";")
|
2017-05-12 19:53:07 +00:00
|
|
|
|
|
|
|
source.append("}")
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
source.append("}")
|
|
|
|
|
|
|
|
|
|
|
|
return "\n".join(source)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def generate_icall_header(icalls):
|
|
|
|
|
|
|
|
source = []
|
|
|
|
source.append("#ifndef GODOT_CPP__ICALLS_HPP")
|
|
|
|
source.append("#define GODOT_CPP__ICALLS_HPP")
|
|
|
|
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("#include <godot.h>")
|
2017-07-23 15:14:50 +00:00
|
|
|
source.append("#include <stdint.h>")
|
2017-05-12 19:53:07 +00:00
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("#include <CoreTypes.hpp>")
|
|
|
|
source.append("#include <Object.hpp>")
|
|
|
|
source.append("")
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("namespace godot {")
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
for icall in icalls:
|
|
|
|
ret_type = icall[0]
|
|
|
|
args = icall[1]
|
|
|
|
|
|
|
|
method_signature = ""
|
|
|
|
|
|
|
|
method_signature += return_type(ret_type) + get_icall_name(icall) + "(godot_method_bind *mb, godot_object *inst"
|
|
|
|
|
|
|
|
for arg in args:
|
|
|
|
method_signature += ", const "
|
|
|
|
|
|
|
|
if is_core_type(arg):
|
|
|
|
method_signature += arg + "&"
|
|
|
|
elif is_primitive(arg):
|
|
|
|
method_signature += arg
|
|
|
|
else:
|
|
|
|
method_signature += "Object *"
|
|
|
|
|
|
|
|
method_signature += ");"
|
|
|
|
|
|
|
|
source.append(method_signature)
|
|
|
|
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("}")
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("#endif")
|
|
|
|
|
|
|
|
return "\n".join(source)
|
|
|
|
|
|
|
|
|
|
|
|
def generate_icall_implementation(icalls):
|
|
|
|
source = []
|
|
|
|
source.append("#include \"__icalls.hpp\"")
|
|
|
|
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("#include <godot.h>")
|
2017-07-23 15:14:50 +00:00
|
|
|
source.append("#include <stdint.h>")
|
2017-05-12 19:53:07 +00:00
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("#include <CoreTypes.hpp>")
|
|
|
|
source.append("#include <Object.hpp>")
|
|
|
|
source.append("")
|
|
|
|
source.append("")
|
|
|
|
|
2017-05-13 11:55:04 +00:00
|
|
|
source.append("namespace godot {")
|
2017-05-12 19:53:07 +00:00
|
|
|
source.append("")
|
|
|
|
|
|
|
|
for icall in icalls:
|
|
|
|
ret_type = icall[0]
|
|
|
|
args = icall[1]
|
|
|
|
|
|
|
|
method_signature = ""
|
|
|
|
|
|
|
|
method_signature += return_type(ret_type) + get_icall_name(icall) + "(godot_method_bind *mb, godot_object *inst"
|
|
|
|
|
|
|
|
for i, arg in enumerate(args):
|
|
|
|
method_signature += ", const "
|
|
|
|
|
|
|
|
if is_core_type(arg):
|
|
|
|
method_signature += arg + "& "
|
|
|
|
elif is_primitive(arg):
|
|
|
|
method_signature += arg + " "
|
|
|
|
else:
|
|
|
|
method_signature += "Object *"
|
|
|
|
|
|
|
|
method_signature += "arg" + str(i)
|
|
|
|
|
|
|
|
method_signature += ")"
|
|
|
|
|
|
|
|
source.append(method_signature + " {")
|
|
|
|
|
|
|
|
if ret_type != "void":
|
2017-07-23 15:14:50 +00:00
|
|
|
source.append("\t" + return_type(ret_type) + "ret;")
|
2017-05-12 19:53:07 +00:00
|
|
|
if is_class_type(ret_type):
|
|
|
|
source.append("\tret = nullptr;")
|
|
|
|
|
|
|
|
|
|
|
|
source.append("\tconst void *args[" + ("1" if len(args) == 0 else "") + "] = {")
|
|
|
|
|
|
|
|
for i, arg in enumerate(args):
|
|
|
|
|
|
|
|
wrapped_argument = "\t\t"
|
|
|
|
if is_primitive(arg) or is_core_type(arg):
|
|
|
|
wrapped_argument += "(void *) &arg" + str(i)
|
|
|
|
else:
|
|
|
|
wrapped_argument += "(void *) arg" + str(i)
|
|
|
|
|
|
|
|
wrapped_argument += ","
|
|
|
|
source.append(wrapped_argument)
|
|
|
|
|
|
|
|
source.append("\t};")
|
|
|
|
source.append("")
|
|
|
|
|
|
|
|
source.append("\tgodot_method_bind_ptrcall(mb, inst, args, " + ("nullptr" if ret_type == "void" else "&ret") + ");")
|
|
|
|
|
|
|
|
if ret_type != "void":
|
|
|
|
source.append("\treturn ret;")
|
|
|
|
|
|
|
|
source.append("}")
|
|
|
|
|
2017-05-13 11:55:04 +00:00
|
|
|
source.append("}")
|
2017-05-12 19:53:07 +00:00
|
|
|
source.append("")
|
|
|
|
|
|
|
|
return "\n".join(source)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def return_type(t):
|
|
|
|
if is_class_type(t):
|
|
|
|
return "Object *"
|
2017-07-23 15:14:50 +00:00
|
|
|
if t == "int":
|
|
|
|
return "int64_t "
|
|
|
|
if t == "float" or t == "real":
|
|
|
|
return "double "
|
2017-05-12 19:53:07 +00:00
|
|
|
return t + " "
|
|
|
|
|
|
|
|
|
|
|
|
def get_icall_name(sig):
|
|
|
|
ret_type = sig[0]
|
|
|
|
args = sig[1]
|
|
|
|
|
|
|
|
name = "___godot_icall_"
|
|
|
|
name += strip_name(ret_type)
|
|
|
|
for arg in args:
|
|
|
|
name += "_" + strip_name(arg)
|
|
|
|
|
|
|
|
return name
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def get_used_classes(c):
|
|
|
|
classes = []
|
|
|
|
for method in c["methods"]:
|
|
|
|
if is_class_type(method["return_type"]) and not (method["return_type"] in classes):
|
|
|
|
classes.append(method["return_type"])
|
|
|
|
|
|
|
|
for arg in method["arguments"]:
|
|
|
|
if is_class_type(arg["type"]) and not (arg["type"] in classes):
|
|
|
|
classes.append(arg["type"])
|
|
|
|
return classes
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def strip_name(name):
|
|
|
|
if name[0] == '_':
|
|
|
|
return name[1:]
|
|
|
|
return name
|
|
|
|
|
|
|
|
|
|
|
|
def is_class_type(name):
|
|
|
|
return not is_core_type(name) and not is_primitive(name)
|
|
|
|
|
|
|
|
def is_core_type(name):
|
|
|
|
core_types = ["Array",
|
|
|
|
"Basis",
|
|
|
|
"Color",
|
|
|
|
"Dictionary",
|
|
|
|
"Error",
|
|
|
|
"NodePath",
|
|
|
|
"Plane",
|
|
|
|
"PoolByteArray",
|
|
|
|
"PoolIntArray",
|
|
|
|
"PoolRealArray",
|
|
|
|
"PoolStringArray",
|
|
|
|
"PoolVector2Array",
|
|
|
|
"PoolVector3Array",
|
|
|
|
"PoolColorArray",
|
|
|
|
"Quat",
|
|
|
|
"Rect2",
|
|
|
|
"Rect3",
|
|
|
|
"RID",
|
|
|
|
"String",
|
|
|
|
"Transform",
|
|
|
|
"Transform2D",
|
|
|
|
"Variant",
|
|
|
|
"Vector2",
|
|
|
|
"Vector3"]
|
|
|
|
return name in core_types
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def is_primitive(name):
|
|
|
|
core_types = ["int", "bool", "real", "float", "void"]
|
|
|
|
return name in core_types
|
|
|
|
|
|
|
|
def escape_cpp(name):
|
|
|
|
escapes = {
|
|
|
|
"class": "_class",
|
|
|
|
"char": "_char",
|
|
|
|
"short": "_short",
|
|
|
|
"bool": "_bool",
|
|
|
|
"int": "_int",
|
|
|
|
"default": "_default",
|
|
|
|
"case": "_case",
|
|
|
|
"switch": "_switch",
|
|
|
|
"export": "_export",
|
|
|
|
"template": "_template",
|
|
|
|
"new": "new_"
|
|
|
|
}
|
|
|
|
if name in escapes:
|
|
|
|
return escapes[name]
|
|
|
|
return name
|