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@@ -0,0 +1,886 @@
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+# -------------------------------------------------------------------------------
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+# Generate rust bindings.
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+#
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+# rust coding style:
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+# - types are PascalCase
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+# - otherwise snake_case
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+# -------------------------------------------------------------------------------
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+import gen_ir
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+import os, shutil, sys
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+
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+import gen_util as util
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+
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+module_names = {
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+ "slog_": "log",
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+ "sg_": "gfx",
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+ "sapp_": "app",
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+ "stm_": "time",
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+ "saudio_": "audio",
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+ "sgl_": "gl",
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+ "sdtx_": "debugtext",
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+ "sshape_": "shape",
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+ "sapp_sg": "glue",
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+ "simgui_": "imgui",
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+ "sg_imgui_": "gfx_imgui",
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+}
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+
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+module_requires_rust_feature = {
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+ module_names["simgui_"]: "imgui",
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+ module_names["sg_imgui_"]: "imgui",
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+}
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+
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+c_source_paths = {
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+ "slog_": "sokol-rust/src/sokol/c/sokol_log.c",
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+ "sg_": "sokol-rust/src/sokol/c/sokol_gfx.c",
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+ "sapp_": "sokol-rust/src/sokol/c/sokol_app.c",
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+ "stm_": "sokol-rust/src/sokol/c/sokol_time.c",
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+ "saudio_": "sokol-rust/src/sokol/c/sokol_audio.c",
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+ "sgl_": "sokol-rust/src/sokol/c/sokol_gl.c",
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+ "sdtx_": "sokol-rust/src/sokol/c/sokol_debugtext.c",
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+ "sshape_": "sokol-rust/src/sokol/c/sokol_shape.c",
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+ "sapp_sg": "sokol-rust/src/sokol/c/sokol_glue.c",
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+ "simgui_": "sokol-rust/src/sokol/c/sokol_imgui.c",
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+ "sg_imgui_": "sokol-rust/src/sokol/c/sokol_gfx_imgui.c",
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+}
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+
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+ignores = [
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+ "sdtx_printf",
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+ "sdtx_vprintf",
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+ # "sg_install_trace_hooks",
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+ # "sg_trace_hooks",
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+]
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+
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+range_struct_name = "Range"
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+
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+# functions that need to be exposed as 'raw' C callbacks without a rust wrapper function
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+c_callbacks = ["slog_func"]
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+
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+# NOTE: syntax for function results: "func_name.RESULT"
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+overrides = {
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+ "type": "_type",
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+ "ref": "_ref",
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+
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+ "sg_apply_uniforms.ub_index": "uintptr_t",
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+ "sg_draw.base_element": "uintptr_t",
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+ "sg_draw.num_elements": "uintptr_t",
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+ "sg_draw.num_instances": "uintptr_t",
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+ "sshape_element_range_t.base_element": "uintptr_t",
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+ "sshape_element_range_t.num_elements": "uintptr_t",
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+ "sdtx_font.font_index": "uintptr_t",
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+
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+ "sdtx_move": "sdtx_move_cursor",
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+ "sdtx_move_x": "sdtx_move_cursor_x",
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+ "sdtx_move_y": "sdtx_move_cursor_y",
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+
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+ "sg_image_type::SG_IMAGETYPE_2D": "SG_IMAGEYPE_DIM2",
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+ "sg_image_type::SG_IMAGETYPE_3D": "SG_IMAGETYPE_DIM3",
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+
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+ "sapp_keycode::SAPP_KEYCODE_0": "SAPP_KEYCODE_NUM0",
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+ "sapp_keycode::SAPP_KEYCODE_1": "SAPP_KEYCODE_NUM1",
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+ "sapp_keycode::SAPP_KEYCODE_2": "SAPP_KEYCODE_NUM2",
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+ "sapp_keycode::SAPP_KEYCODE_3": "SAPP_KEYCODE_NUM3",
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+ "sapp_keycode::SAPP_KEYCODE_4": "SAPP_KEYCODE_NUM4",
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+ "sapp_keycode::SAPP_KEYCODE_5": "SAPP_KEYCODE_NUM5",
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+ "sapp_keycode::SAPP_KEYCODE_6": "SAPP_KEYCODE_NUM6",
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+ "sapp_keycode::SAPP_KEYCODE_7": "SAPP_KEYCODE_NUM7",
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+ "sapp_keycode::SAPP_KEYCODE_8": "SAPP_KEYCODE_NUM8",
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+ "sapp_keycode::SAPP_KEYCODE_9": "SAPP_KEYCODE_NUM9",
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+
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+ # "sgl_error": "sgl_get_error", # 'error' is reserved in zig
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+ # "sgl_deg": "sgl_as_degrees",
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+ # "sgl_rad": "sgl_as_radians",
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+ # "sg_context_desc.color_format": "int",
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+ # "SGL_NO_ERROR": "SGL_ERROR_NO_ERROR",
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+ # "sg_context_desc.depth_format": "int",
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+}
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+
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+prim_types = {
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+ "int": "i32",
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+ "bool": "bool",
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+ "char": "core::ffi::c_char",
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+ "int8_t": "i8",
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+ "uint8_t": "u8",
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+ "int16_t": "i16",
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+ "uint16_t": "u16",
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+ "int32_t": "i32",
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+ "uint32_t": "u32",
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+ "int64_t": "i64",
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+ "uint64_t": "u64",
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+ "float": "f32",
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+ "double": "f64",
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+ "uintptr_t": "usize",
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+ "intptr_t": "isize",
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+ "size_t": "usize",
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+}
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+
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+prim_defaults = {
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+ "int": "0",
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+ "bool": "false",
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+ "int8_t": "0",
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+ "uint8_t": "0",
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+ "int16_t": "0",
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+ "uint16_t": "0",
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+ "int32_t": "0",
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+ "uint32_t": "0",
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+ "int64_t": "0",
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+ "uint64_t": "0",
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+ "float": "0.0",
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+ "double": "0.0",
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+ "uintptr_t": "0",
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+ "intptr_t": "0",
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+ "size_t": "0",
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+ "char": "0",
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+}
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+
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+special_constant_types = {
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+ "SG_INVALID_ID": "u32"
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+}
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+
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+struct_types = []
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+enum_types = []
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+enum_items = {}
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+out_lines = ""
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+
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+
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+def reset_globals():
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+ global struct_types
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+ global enum_types
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+ global enum_items
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+ global out_lines
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+ struct_types = []
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+ enum_types = []
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+ enum_items = {}
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+ out_lines = ""
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+
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+
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+def l(s):
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+ global out_lines
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+ out_lines += s + "\n"
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+
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+
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+def as_rust_prim_type(s):
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+ return prim_types[s]
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+
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+
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+def as_upper_snake_case(s, prefix):
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+ outp = s.lower()
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+ if outp.startswith(prefix):
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+ outp = outp[len(prefix):]
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+ return outp.upper()
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+
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+
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+# prefix_bla_blub(_t) => (dep::)BlaBlub
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+def as_rust_struct_type(s, prefix):
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+ parts = s.lower().split("_")
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+ outp = "" if s.startswith(prefix) else f"{parts[0]}::"
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+ for part in parts[1:]:
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+ # ignore '_t' type postfix
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+ if part != "t":
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+ outp += part.capitalize()
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+ return outp
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+
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+
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+# prefix_bla_blub(_t) => (dep::)BlaBlub
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+def as_rust_enum_type(s, prefix):
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+ parts = s.lower().split("_")
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+ outp = "" if s.startswith(prefix) else f"{parts[0]}::"
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+ for part in parts[1:]:
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+ # ignore '_t' type postfix
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+ if part != "t":
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+ outp += part.capitalize()
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+ return outp
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+
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+
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+def check_override(name, default=None):
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+ if name in overrides:
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+ return overrides[name]
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+ elif default is None:
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+ return name
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+ else:
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+ return default
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+
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+
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+def check_ignore(name):
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+ return name in ignores
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+
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+
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+# PREFIX_ENUM_BLA_BLA => BlaBla, _PREFIX_ENUM_BLA_BLA => BlaBla
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+def as_enum_item_name(s):
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+ parts = s.lstrip("_").split("_")
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+ outp = ""
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+ for i, part in enumerate(parts[2:]):
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+ # TODO: What to do with enum fields starting with numbers?
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+ outp += part.capitalize()
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+
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+ return outp
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+
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+
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+def enum_default_item(enum_name):
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+ return enum_items[enum_name][0]
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+
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+
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+def is_prim_type(s):
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+ return s in prim_types
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+
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+
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+def is_struct_type(s):
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+ return s in struct_types
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+
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+
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+def is_enum_type(s):
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+ return s in enum_types
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+
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+
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+def is_const_prim_ptr(s):
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+ for prim_type in prim_types:
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+ if s == f"const {prim_type} *":
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+ return True
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+ return False
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+
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+
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+def is_prim_ptr(s):
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+ for prim_type in prim_types:
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+ if s == f"{prim_type} *":
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+ return True
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+ return False
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+
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+
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+def is_const_struct_ptr(s):
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+ for struct_type in struct_types:
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+ if s == f"const {struct_type} *":
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+ return True
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+ return False
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+
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+
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+def is_struct_ptr(s):
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+ for struct_type in struct_types:
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+ if s == f"{struct_type} *":
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+ return True
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+ return False
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+
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+
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+def type_default_value(s):
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+ return prim_defaults[s]
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+
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+
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+def as_c_arg_type(arg_prefix, arg_type, prefix):
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+ # NOTE: if arg_prefix is None, the result is used as return value
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+ pre = "" if arg_prefix is None else arg_prefix
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+
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+ if arg_type == "void":
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+ return ""
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+ elif is_prim_type(arg_type):
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+ return pre + as_rust_prim_type(arg_type)
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+ elif is_struct_type(arg_type):
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+ return pre + as_rust_struct_type(arg_type, prefix)
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+ elif is_enum_type(arg_type):
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+ return pre + as_rust_enum_type(arg_type, prefix)
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+ elif util.is_void_ptr(arg_type):
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+ return pre + "*mut core::ffi::c_void"
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+ elif util.is_const_void_ptr(arg_type):
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+ return pre + "*const core::ffi::c_void"
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+ elif util.is_string_ptr(arg_type):
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+ return pre + "*const core::ffi::c_char"
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+ elif is_const_struct_ptr(arg_type):
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+ return pre + f"*const {as_rust_struct_type(util.extract_ptr_type(arg_type), prefix)}"
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+ elif is_struct_ptr(arg_type):
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+ return pre + f"*mut {as_rust_struct_type(util.extract_ptr_type(arg_type), prefix)}"
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+ elif is_prim_ptr(arg_type):
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+ return pre + f"*mut {as_rust_prim_type(util.extract_ptr_type(arg_type))}"
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+ elif is_const_prim_ptr(arg_type):
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+ return pre + f"*const {as_rust_prim_type(util.extract_ptr_type(arg_type))}"
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+ else:
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+ sys.exit(f"ERROR as_c_arg_type(): {arg_type}")
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+
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+
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+def as_rust_arg_type(arg_prefix, arg_type, prefix):
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+ # NOTE: if arg_prefix is None, the result is used as return value
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+ pre = "" if arg_prefix is None else arg_prefix
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+
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+ if arg_type == "void":
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+ return ""
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+ elif is_prim_type(arg_type):
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+ return pre + as_rust_prim_type(arg_type)
|
|
|
|
|
+ elif is_struct_type(arg_type):
|
|
|
|
|
+ return pre + as_rust_struct_type(arg_type, prefix)
|
|
|
|
|
+ elif is_enum_type(arg_type):
|
|
|
|
|
+ return pre + as_rust_enum_type(arg_type, prefix)
|
|
|
|
|
+ elif util.is_void_ptr(arg_type):
|
|
|
|
|
+ return pre + "*mut core::ffi::c_void"
|
|
|
|
|
+ elif util.is_const_void_ptr(arg_type):
|
|
|
|
|
+ return pre + "*const core::ffi::c_void"
|
|
|
|
|
+ elif util.is_string_ptr(arg_type):
|
|
|
|
|
+ return pre + "&str"
|
|
|
|
|
+ elif is_const_struct_ptr(arg_type):
|
|
|
|
|
+ return pre + f"&{as_rust_struct_type(util.extract_ptr_type(arg_type), prefix)}"
|
|
|
|
|
+ elif is_struct_ptr(arg_type):
|
|
|
|
|
+ return pre + f"&mut {as_rust_struct_type(util.extract_ptr_type(arg_type), prefix)}"
|
|
|
|
|
+ elif is_prim_ptr(arg_type):
|
|
|
|
|
+ return pre + f"&mut {as_rust_prim_type(util.extract_ptr_type(arg_type))}"
|
|
|
|
|
+ elif is_const_prim_ptr(arg_type):
|
|
|
|
|
+ return pre + f"&{as_rust_prim_type(util.extract_ptr_type(arg_type))}"
|
|
|
|
|
+ else:
|
|
|
|
|
+ sys.exit(f"ERROR as_rust_arg_type(): {arg_type}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def is_rust_string(rust_type):
|
|
|
|
|
+ return rust_type == "&str" or rust_type == " -> &'static str"
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+# get C-style arguments of a function pointer as string
|
|
|
|
|
+def funcptr_args_c(field_type, prefix):
|
|
|
|
|
+ tokens = field_type[field_type.index("(*)") + 4: -1].split(",")
|
|
|
|
|
+ s = ""
|
|
|
|
|
+ for token in tokens:
|
|
|
|
|
+ arg_type = token.strip()
|
|
|
|
|
+ if s != "":
|
|
|
|
|
+ s += ", "
|
|
|
|
|
+ c_arg = as_c_arg_type(None, arg_type, prefix)
|
|
|
|
|
+ if c_arg == "void":
|
|
|
|
|
+ return ""
|
|
|
|
|
+ else:
|
|
|
|
|
+ s += c_arg
|
|
|
|
|
+ return s
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+# get C-style result of a function pointer as string
|
|
|
|
|
+def funcptr_result_c(field_type):
|
|
|
|
|
+ res_type = field_type[: field_type.index("(*)")].strip()
|
|
|
|
|
+ if res_type == "void":
|
|
|
|
|
+ return ""
|
|
|
|
|
+ elif util.is_const_void_ptr(res_type):
|
|
|
|
|
+ return " -> *const core::ffi::c_void"
|
|
|
|
|
+ elif util.is_void_ptr(res_type):
|
|
|
|
|
+ return " -> *mut core::ffi::c_void"
|
|
|
|
|
+ else:
|
|
|
|
|
+ sys.exit(f"ERROR funcptr_result_c(): {field_type}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def funcdecl_args_c(decl, prefix):
|
|
|
|
|
+ s = ""
|
|
|
|
|
+ func_name = decl["name"]
|
|
|
|
|
+ for param_decl in decl["params"]:
|
|
|
|
|
+ if s != "":
|
|
|
|
|
+ s += ", "
|
|
|
|
|
+ param_name = param_decl["name"]
|
|
|
|
|
+ param_type = check_override(
|
|
|
|
|
+ f"{func_name}.{param_name}", default=param_decl["type"]
|
|
|
|
|
+ )
|
|
|
|
|
+ s += f"{as_c_arg_type(f'{param_name}: ', param_type, prefix)}"
|
|
|
|
|
+ return s
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def funcdecl_args_rust(decl, prefix):
|
|
|
|
|
+ s = ""
|
|
|
|
|
+ func_name = decl["name"]
|
|
|
|
|
+ for param_decl in decl["params"]:
|
|
|
|
|
+ if s != "":
|
|
|
|
|
+ s += ", "
|
|
|
|
|
+ param_name = param_decl["name"]
|
|
|
|
|
+ param_type = check_override(
|
|
|
|
|
+ f"{func_name}.{param_name}", default=param_decl["type"]
|
|
|
|
|
+ )
|
|
|
|
|
+ s += f"{as_rust_arg_type(f'{param_name}: ', param_type, prefix)}"
|
|
|
|
|
+ return s
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def funcdecl_result_c(decl, prefix):
|
|
|
|
|
+ func_name = decl["name"]
|
|
|
|
|
+ decl_type = decl["type"]
|
|
|
|
|
+ result_type = check_override(
|
|
|
|
|
+ f"{func_name}.RESULT", default=decl_type[: decl_type.index("(")].strip()
|
|
|
|
|
+ )
|
|
|
|
|
+
|
|
|
|
|
+ it = as_c_arg_type(None, result_type, prefix)
|
|
|
|
|
+ if it == "()" or it == "":
|
|
|
|
|
+ return ""
|
|
|
|
|
+ else:
|
|
|
|
|
+ return f" -> {it}"
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def funcdecl_result_rust(decl, prefix):
|
|
|
|
|
+ func_name = decl["name"]
|
|
|
|
|
+ decl_type = decl["type"]
|
|
|
|
|
+ result_type = check_override(
|
|
|
|
|
+ f"{func_name}.RESULT", default=decl_type[: decl_type.index("(")].strip()
|
|
|
|
|
+ )
|
|
|
|
|
+ rust_res_type = as_rust_arg_type(None, result_type, prefix)
|
|
|
|
|
+
|
|
|
|
|
+ if is_rust_string(rust_res_type):
|
|
|
|
|
+ rust_res_type = "&'static str"
|
|
|
|
|
+
|
|
|
|
|
+ if rust_res_type == "":
|
|
|
|
|
+ return ""
|
|
|
|
|
+ else:
|
|
|
|
|
+ return f" -> {rust_res_type }"
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_struct(decl, prefix):
|
|
|
|
|
+ struct_name = check_override(decl["name"])
|
|
|
|
|
+ rust_type = as_rust_struct_type(struct_name, prefix)
|
|
|
|
|
+ rust_struct_type = rust_type
|
|
|
|
|
+
|
|
|
|
|
+ struct_lines = []
|
|
|
|
|
+ default_lines = []
|
|
|
|
|
+
|
|
|
|
|
+ for field in decl["fields"]:
|
|
|
|
|
+ field_name = check_override(field["name"])
|
|
|
|
|
+ field_type = check_override(
|
|
|
|
|
+ f"{struct_name}.{field_name}", default=field["type"]
|
|
|
|
|
+ )
|
|
|
|
|
+
|
|
|
|
|
+ if is_prim_type(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: {as_rust_prim_type(field_type)}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: {type_default_value(field_type)}"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif is_struct_type(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: {as_rust_struct_type(field_type, prefix)}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: {as_rust_struct_type(field_type, prefix)}::new()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif is_enum_type(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: {as_rust_enum_type(field_type, prefix)}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: {as_rust_enum_type(field_type, prefix)}::new()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_string_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *const core::ffi::c_char"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_const_void_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *const core::ffi::c_void"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_void_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *mut core::ffi::c_void"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null_mut()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif is_const_prim_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *const {as_rust_prim_type(util.extract_ptr_type(field_type))}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif is_prim_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *mut {as_rust_prim_type(util.extract_ptr_type(field_type))}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null_mut()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif is_const_struct_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *const {as_rust_struct_type(util.extract_ptr_type(field_type), prefix)}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif is_struct_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: *mut {as_rust_struct_type(util.extract_ptr_type(field_type), prefix)}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: core::ptr::null_mut()"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_func_ptr(field_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: Option<extern \"C\" fn({funcptr_args_c(field_type, prefix)}){funcptr_result_c(field_type)}>"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: None"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_1d_array_type(field_type):
|
|
|
|
|
+ array_type = util.extract_array_type(field_type)
|
|
|
|
|
+ array_sizes = util.extract_array_sizes(field_type)
|
|
|
|
|
+ if is_prim_type(array_type) or is_struct_type(array_type):
|
|
|
|
|
+ if is_prim_type(array_type):
|
|
|
|
|
+ rust_type = as_rust_prim_type(array_type)
|
|
|
|
|
+ def_val = type_default_value(array_type)
|
|
|
|
|
+ elif is_struct_type(array_type) or is_enum_type(array_type):
|
|
|
|
|
+ rust_type = as_rust_struct_type(array_type, prefix)
|
|
|
|
|
+ def_val = f"{rust_type}::new()"
|
|
|
|
|
+ else:
|
|
|
|
|
+ sys.exit(f"ERROR gen_struct is_1d_array_type: {array_type}")
|
|
|
|
|
+ t0 = f"[{rust_type}; {array_sizes[0]}]"
|
|
|
|
|
+ # t1 = f"&{rust_type}"
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: {t0}"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: [{def_val}; {array_sizes[0]}]"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_const_void_ptr(array_type):
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: [*const core::ffi::c_void; {array_sizes[0]}]"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: [core::ptr::null(); {array_sizes[0]}]"
|
|
|
|
|
+ )
|
|
|
|
|
+ else:
|
|
|
|
|
+ sys.exit(
|
|
|
|
|
+ f"ERROR gen_struct: array {field_name}: {field_type} => [{array_type}: {array_sizes[0]}]"
|
|
|
|
|
+ )
|
|
|
|
|
+ elif util.is_2d_array_type(field_type):
|
|
|
|
|
+ array_type = util.extract_array_type(field_type)
|
|
|
|
|
+ array_sizes = util.extract_array_sizes(field_type)
|
|
|
|
|
+
|
|
|
|
|
+ if is_prim_type(array_type):
|
|
|
|
|
+ rust_type = as_rust_prim_type(array_type)
|
|
|
|
|
+ def_val = type_default_value(array_type)
|
|
|
|
|
+ elif is_struct_type(array_type):
|
|
|
|
|
+ rust_type = as_rust_struct_type(array_type, prefix)
|
|
|
|
|
+ def_val = f"{rust_type}::new()"
|
|
|
|
|
+ else:
|
|
|
|
|
+ sys.exit(f"ERROR gen_struct is_2d_array_type: {array_type}")
|
|
|
|
|
+
|
|
|
|
|
+ struct_lines.append(
|
|
|
|
|
+ f"pub {field_name}: [[{rust_type}; {array_sizes[1]}]; {array_sizes[0]}]"
|
|
|
|
|
+ )
|
|
|
|
|
+ default_lines.append(
|
|
|
|
|
+ f"{field_name}: [[{def_val}; {array_sizes[1]}]; {array_sizes[0]}]"
|
|
|
|
|
+ )
|
|
|
|
|
+ else:
|
|
|
|
|
+ sys.exit(f"ERROR gen_struct: {field_name}: {field_type};")
|
|
|
|
|
+
|
|
|
|
|
+ #
|
|
|
|
|
+ # TODO: Is this the best way to have zero-initialization with support for constants?
|
|
|
|
|
+ # core::mem::zeroed() cleaner?
|
|
|
|
|
+ #
|
|
|
|
|
+
|
|
|
|
|
+ l("#[repr(C)]")
|
|
|
|
|
+ l("#[derive(Copy, Clone, Debug)]")
|
|
|
|
|
+ l(f"pub struct {rust_struct_type} {{")
|
|
|
|
|
+ for line in struct_lines:
|
|
|
|
|
+ l(f" {line},")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+ l(f"impl {rust_struct_type} {{")
|
|
|
|
|
+ l(" pub const fn new() -> Self {")
|
|
|
|
|
+ l(" Self {")
|
|
|
|
|
+ for line in default_lines:
|
|
|
|
|
+ l(f" {line},")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+ l(f"impl Default for {rust_struct_type} {{")
|
|
|
|
|
+ l(" fn default() -> Self {")
|
|
|
|
|
+ l(" Self::new()")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_consts(decl, prefix):
|
|
|
|
|
+ for item in decl["items"]:
|
|
|
|
|
+ #
|
|
|
|
|
+ # TODO: What type should these constants have? Currently giving all `usize`
|
|
|
|
|
+ # unless specifically overriden by `special_constant_types`
|
|
|
|
|
+ #
|
|
|
|
|
+
|
|
|
|
|
+ item_name = check_override(item["name"])
|
|
|
|
|
+ if item_name in special_constant_types:
|
|
|
|
|
+ special_type = special_constant_types[item_name]
|
|
|
|
|
+ l(f"pub const {as_upper_snake_case(item_name, prefix)}: {special_type} = {item['value']};")
|
|
|
|
|
+ else:
|
|
|
|
|
+ l(f"pub const {as_upper_snake_case(item_name, prefix)}: usize = {item['value']};")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_enum(decl, prefix):
|
|
|
|
|
+ enum_name = check_override(decl["name"])
|
|
|
|
|
+
|
|
|
|
|
+ names = [
|
|
|
|
|
+ as_enum_item_name(check_override(f"{decl['name']}::{item['name']}", item['name'])) for item in decl["items"]
|
|
|
|
|
+ ]
|
|
|
|
|
+
|
|
|
|
|
+ is_u32 = False
|
|
|
|
|
+ for name in names:
|
|
|
|
|
+ if name == "ForceU32":
|
|
|
|
|
+ is_u32 = True
|
|
|
|
|
+ break
|
|
|
|
|
+
|
|
|
|
|
+ l("#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]")
|
|
|
|
|
+ if is_u32:
|
|
|
|
|
+ l("#[repr(u32)]")
|
|
|
|
|
+ else:
|
|
|
|
|
+ l("#[repr(i32)]")
|
|
|
|
|
+
|
|
|
|
|
+ rust_enum_name = as_rust_enum_type(enum_name, prefix)
|
|
|
|
|
+
|
|
|
|
|
+ l(f"pub enum {rust_enum_name} {{")
|
|
|
|
|
+ for item_name, item in zip(names, decl["items"]):
|
|
|
|
|
+ if item_name != "ForceU32":
|
|
|
|
|
+ if "value" in item:
|
|
|
|
|
+ l(f" {item_name} = {item['value']},")
|
|
|
|
|
+ else:
|
|
|
|
|
+ l(f" {item_name},")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+ default_item = enum_default_item(enum_name)
|
|
|
|
|
+ l(f"impl {rust_enum_name} {{")
|
|
|
|
|
+ l(" pub const fn new() -> Self {")
|
|
|
|
|
+ l(f" Self::{default_item}")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+ l(f"impl Default for {rust_enum_name} {{")
|
|
|
|
|
+ l(" fn default() -> Self {")
|
|
|
|
|
+ l(f" Self::{default_item}")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_func_c(decl, prefix):
|
|
|
|
|
+ l("pub extern \"C\" {")
|
|
|
|
|
+ l(f" fn {decl['name']}({funcdecl_args_c(decl, prefix)}){funcdecl_result_c(decl, prefix)};")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_c_funcs(funcs):
|
|
|
|
|
+ l("pub mod ffi {")
|
|
|
|
|
+ l(" #![allow(unused_imports)]")
|
|
|
|
|
+ l(" use super::*;")
|
|
|
|
|
+ l(" extern \"C\" {")
|
|
|
|
|
+ for decl, prefix in funcs:
|
|
|
|
|
+ l(f" pub fn {decl['name']}({funcdecl_args_c(decl, prefix)}){funcdecl_result_c(decl, prefix)};")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_rust_funcs(funcs):
|
|
|
|
|
+ for decl, prefix in funcs:
|
|
|
|
|
+ gen_func_rust(decl, prefix)
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_func_rust(decl, prefix):
|
|
|
|
|
+ c_func_name = decl["name"]
|
|
|
|
|
+ rust_func_name = util.as_lower_snake_case(check_override(decl["name"]), prefix)
|
|
|
|
|
+ rust_res_type = funcdecl_result_rust(decl, prefix)
|
|
|
|
|
+
|
|
|
|
|
+ if c_func_name in c_callbacks:
|
|
|
|
|
+ c_res_type = funcdecl_result_c(decl, prefix)
|
|
|
|
|
+ l("#[inline]")
|
|
|
|
|
+ l(f'pub extern "C" fn {c_func_name}({funcdecl_args_c(decl, prefix)}){c_res_type} {{')
|
|
|
|
|
+ l(" unsafe {")
|
|
|
|
|
+ s = f" ffi::{c_func_name}("
|
|
|
|
|
+ for i, param_decl in enumerate(decl["params"]):
|
|
|
|
|
+ if i > 0:
|
|
|
|
|
+ s += ", "
|
|
|
|
|
+ arg_name = param_decl["name"]
|
|
|
|
|
+ s += arg_name
|
|
|
|
|
+ s += ")"
|
|
|
|
|
+ l(s)
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+ else:
|
|
|
|
|
+ l("#[inline]")
|
|
|
|
|
+ l(f"pub fn {rust_func_name}({funcdecl_args_rust(decl, prefix)}){rust_res_type} {{")
|
|
|
|
|
+ for i, param_decl in enumerate(decl["params"]):
|
|
|
|
|
+ arg_name = param_decl["name"]
|
|
|
|
|
+ arg_type = param_decl["type"]
|
|
|
|
|
+ if util.is_string_ptr(arg_type):
|
|
|
|
|
+ l(f" let tmp_{i} = std::ffi::CString::new({arg_name}).unwrap();")
|
|
|
|
|
+
|
|
|
|
|
+ l(" unsafe {")
|
|
|
|
|
+ if is_rust_string(rust_res_type):
|
|
|
|
|
+ # special case: convert C string to rust string slice
|
|
|
|
|
+ s = f" c_char_ptr_to_rust_str(ffi::{c_func_name}("
|
|
|
|
|
+ else:
|
|
|
|
|
+ s = f" ffi::{c_func_name}("
|
|
|
|
|
+
|
|
|
|
|
+ for i, param_decl in enumerate(decl["params"]):
|
|
|
|
|
+ if i > 0:
|
|
|
|
|
+ s += ", "
|
|
|
|
|
+ arg_name = param_decl["name"]
|
|
|
|
|
+ arg_type = param_decl["type"]
|
|
|
|
|
+
|
|
|
|
|
+ if util.is_string_ptr(arg_type):
|
|
|
|
|
+ s += f"tmp_{i}.as_ptr()"
|
|
|
|
|
+ else:
|
|
|
|
|
+ s += arg_name
|
|
|
|
|
+
|
|
|
|
|
+ if is_rust_string(rust_res_type):
|
|
|
|
|
+ s += ")"
|
|
|
|
|
+ s += ")"
|
|
|
|
|
+ l(s)
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def pre_parse(inp):
|
|
|
|
|
+ global struct_types
|
|
|
|
|
+ global enum_types
|
|
|
|
|
+ for decl in inp["decls"]:
|
|
|
|
|
+ kind = decl["kind"]
|
|
|
|
|
+ if kind == "struct":
|
|
|
|
|
+ struct_types.append(decl["name"])
|
|
|
|
|
+ elif kind == "enum":
|
|
|
|
|
+ enum_name = decl["name"]
|
|
|
|
|
+ enum_types.append(enum_name)
|
|
|
|
|
+ enum_items[enum_name] = []
|
|
|
|
|
+ for item in decl["items"]:
|
|
|
|
|
+ enum_items[enum_name].append(as_enum_item_name(item["name"]))
|
|
|
|
|
+
|
|
|
|
|
+def gen_imports(inp, dep_prefixes):
|
|
|
|
|
+ for dep_prefix in dep_prefixes:
|
|
|
|
|
+ dep_module_name = module_names[dep_prefix]
|
|
|
|
|
+ # l(f'const {dep_prefix[:-1]} = @import("{dep_module_name}.rs");')
|
|
|
|
|
+ l(f'use crate::{dep_module_name} as {dep_prefix[:-1]};')
|
|
|
|
|
+ l("")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_helpers(inp):
|
|
|
|
|
+ l("/// Helper function to convert a C string to a rust string slice")
|
|
|
|
|
+ l("#[inline]")
|
|
|
|
|
+ l("fn c_char_ptr_to_rust_str(c_char_ptr: *const core::ffi::c_char) -> &'static str {")
|
|
|
|
|
+ l(" let c_str = unsafe { core::ffi::CStr::from_ptr(c_char_ptr) };")
|
|
|
|
|
+ l(" c_str.to_str().expect(\"c_char_ptr contained invalid Utf8 Data\")")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+ l("")
|
|
|
|
|
+
|
|
|
|
|
+ if inp['prefix'] in ['sg_', 'sdtx_', 'sshape_', 'sapp_']:
|
|
|
|
|
+ l("/// Helper function to cast a rust slice into a sokol Range")
|
|
|
|
|
+ l(f"pub fn slice_as_range<T>(data: &[T]) -> {range_struct_name} {{")
|
|
|
|
|
+ l(f" {range_struct_name} {{ size: data.len() * std::mem::size_of::<T>(), ptr: data.as_ptr() as *const _ }}")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+ l("/// Helper function to cast a rust reference into a sokol Range")
|
|
|
|
|
+ l(f"pub fn value_as_range<T>(value: &T) -> {range_struct_name} {{")
|
|
|
|
|
+ l(f" {range_struct_name} {{ size: std::mem::size_of::<T>(), ptr: value as *const T as *const _ }}")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+ l("")
|
|
|
|
|
+ l(f"impl<T> From<&[T]> for {range_struct_name} {{")
|
|
|
|
|
+ l(" #[inline]")
|
|
|
|
|
+ l(" fn from(data: &[T]) -> Self {")
|
|
|
|
|
+ l(" slice_as_range(data)")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+ l(f"impl<T> From<&T> for {range_struct_name} {{")
|
|
|
|
|
+ l(" #[inline]")
|
|
|
|
|
+ l(" fn from(value: &T) -> Self {")
|
|
|
|
|
+ l(" value_as_range(value)")
|
|
|
|
|
+ l(" }")
|
|
|
|
|
+ l("}")
|
|
|
|
|
+ l("")
|
|
|
|
|
+
|
|
|
|
|
+ # if inp["prefix"] == "sdtx_":
|
|
|
|
|
+ # l("/// std.fmt compatible Writer")
|
|
|
|
|
+ # l("pub const Writer = struct {")
|
|
|
|
|
+ # l(" pub const Error = error { };")
|
|
|
|
|
+ # l(" pub fn writeAll(self: Writer, bytes: []const u8) Error!void {")
|
|
|
|
|
+ # l(" _ = self;")
|
|
|
|
|
+ # l(" for (bytes) |byte| {")
|
|
|
|
|
+ # l(" putc(byte);")
|
|
|
|
|
+ # l(" }")
|
|
|
|
|
+ # l(" }")
|
|
|
|
|
+ # l(" pub fn writeByteNTimes(self: Writer, byte: u8, n: u64) Error!void {")
|
|
|
|
|
+ # l(" _ = self;")
|
|
|
|
|
+ # l(" var i: u64 = 0;")
|
|
|
|
|
+ # l(" while (i < n): (i += 1) {")
|
|
|
|
|
+ # l(" putc(byte);")
|
|
|
|
|
+ # l(" }")
|
|
|
|
|
+ # l(" }")
|
|
|
|
|
+ # l("};")
|
|
|
|
|
+ # l("// std.fmt-style formatted print")
|
|
|
|
|
+ # l("pub fn print(comptime fmt: anytype, args: anytype) void {")
|
|
|
|
|
+ # l(" var writer: Writer = .{};")
|
|
|
|
|
+ # l(' @import("std").fmt.format(writer, fmt, args) catch {};')
|
|
|
|
|
+ # l("}")
|
|
|
|
|
+ # l("")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen_module(inp, dep_prefixes):
|
|
|
|
|
+ module = inp['module']
|
|
|
|
|
+ if module in module_requires_rust_feature:
|
|
|
|
|
+ feature = module_requires_rust_feature[module]
|
|
|
|
|
+ l(f"//! To use this module, enable the feature \"{feature}\"")
|
|
|
|
|
+
|
|
|
|
|
+ l("// machine generated, do not edit")
|
|
|
|
|
+ l("")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+ l("#![allow(dead_code)]")
|
|
|
|
|
+ l("#![allow(unused_imports)]")
|
|
|
|
|
+ l("")
|
|
|
|
|
+ gen_imports(inp, dep_prefixes)
|
|
|
|
|
+ gen_helpers(inp)
|
|
|
|
|
+ pre_parse(inp)
|
|
|
|
|
+ prefix = inp["prefix"]
|
|
|
|
|
+
|
|
|
|
|
+ funcs = []
|
|
|
|
|
+
|
|
|
|
|
+ for decl in inp["decls"]:
|
|
|
|
|
+ #
|
|
|
|
|
+ # HACK: gen_ir.py accidentally marks all sg_imgui_ declarations as is_dep since sg_imgui
|
|
|
|
|
+ # depends on sg_a but also starts with sg_... Fix gen_ir.py to remove this hack
|
|
|
|
|
+ #
|
|
|
|
|
+ dep_hack = False
|
|
|
|
|
+ if module == "gfx_imgui":
|
|
|
|
|
+ dep_hack = "name" in decl and decl["name"].startswith("sg_imgui_")
|
|
|
|
|
+
|
|
|
|
|
+ if not decl["is_dep"] or dep_hack:
|
|
|
|
|
+ kind = decl["kind"]
|
|
|
|
|
+ if kind == "consts":
|
|
|
|
|
+ gen_consts(decl, prefix)
|
|
|
|
|
+ elif not check_ignore(decl["name"]):
|
|
|
|
|
+ if kind == "struct":
|
|
|
|
|
+ gen_struct(decl, prefix)
|
|
|
|
|
+ elif kind == "enum":
|
|
|
|
|
+ gen_enum(decl, prefix)
|
|
|
|
|
+ elif kind == "func":
|
|
|
|
|
+ funcs.append((decl, prefix))
|
|
|
|
|
+
|
|
|
|
|
+ gen_c_funcs(funcs)
|
|
|
|
|
+ gen_rust_funcs(funcs)
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def prepare():
|
|
|
|
|
+ print("=== Generating Rust bindings:")
|
|
|
|
|
+ if not os.path.isdir("sokol-rust/src/sokol"):
|
|
|
|
|
+ os.makedirs("sokol-rust/src/sokol")
|
|
|
|
|
+ if not os.path.isdir("sokol-rust/src/sokol/c"):
|
|
|
|
|
+ os.makedirs("sokol-rust/src/sokol/c")
|
|
|
|
|
+
|
|
|
|
|
+ with open("sokol-rust/src/lib.rs", "w", newline="\n") as f_outp:
|
|
|
|
|
+ f_outp.write("//! Automatically generated sokol bindings for Rust\n\n")
|
|
|
|
|
+
|
|
|
|
|
+
|
|
|
|
|
+def gen(c_header_path, c_prefix, dep_c_prefixes):
|
|
|
|
|
+ if c_prefix not in module_names:
|
|
|
|
|
+ print(f' >> warning: skipping generation for {c_prefix} prefix...')
|
|
|
|
|
+ return
|
|
|
|
|
+
|
|
|
|
|
+ module_name = module_names[c_prefix]
|
|
|
|
|
+ c_source_path = c_source_paths[c_prefix]
|
|
|
|
|
+ print(f' {c_header_path} => {module_name}')
|
|
|
|
|
+ reset_globals()
|
|
|
|
|
+ c_path_in_project = f'sokol-rust/src/sokol/c/{os.path.basename(c_header_path)}'
|
|
|
|
|
+ shutil.copyfile(c_header_path, c_path_in_project)
|
|
|
|
|
+ ir = gen_ir.gen(c_header_path, c_source_path, module_name, c_prefix, dep_c_prefixes)
|
|
|
|
|
+ gen_module(ir, dep_c_prefixes)
|
|
|
|
|
+ output_path = f"sokol-rust/src/{ir['module']}.rs"
|
|
|
|
|
+ with open(output_path, 'w', newline='\n') as f_outp:
|
|
|
|
|
+ f_outp.write(out_lines)
|
|
|
|
|
+
|
|
|
|
|
+ with open("sokol-rust/src/lib.rs", "a", newline="\n") as f_outp:
|
|
|
|
|
+ module = ir['module']
|
|
|
|
|
+ if module in module_requires_rust_feature:
|
|
|
|
|
+ feature = module_requires_rust_feature[module]
|
|
|
|
|
+ f_outp.write(f"/// Enable feature \"{feature}\" to use\n")
|
|
|
|
|
+ f_outp.write(f"#[cfg(feature=\"{feature}\")]\n")
|
|
|
|
|
+ f_outp.write(f"pub mod {module};\n")
|
Andre Weissflog