Implement Python → LLVM IR → WASM reactive framework
MAJOR ACHIEVEMENT: Full working reactive framework! ## What's Working ✅ Python → AST → Ritz IR → LLVM IR → WASM pipeline ✅ Reactive signals stored in WASM memory (@signal_name = global i32) ✅ Event handlers exported from WASM and callable from JS ✅ Clean runtime with RitzLoader and debug tools ✅ Two working examples: HelloWorld and HighFive counter ## Core Components ### Parser (ritz/parser.py) - Uses Python's ast module to parse components - Handles @component decorator, signals, event handlers - Supports yield, with statements, f-strings, augmented assignment (+=) - Clean syntax: from ritz.syntax import * ### LLVM IR Code Generator (ritz/llvm_codegen_signals.py) - Generates LLVM IR directly (not C!) - Signals as global variables in WASM memory - Exports getter/setter functions for each signal - Exports event handler functions for JS to call - UTF-8 string handling ### Build System (ritz/build.py) - Python → AST → IR → LLVM IR → clang --target=wasm32 → WASM - Saves intermediate .ll files for inspection - Debug symbols support (-g flag) ### Runtime (runtime/ritz-runtime.js) - RitzRuntime class: DOM bridge for WASM - RitzLoader class: Simplified component loading - Debug bar with Ctrl+` toggle - Signal updates trigger DOM updates ## Examples ### HelloWorld.py Simple static content - renders <p>Hello World</p> ### HighFive.py Reactive counter with: - Signal in WASM memory (high_fives = signal(0)) - Event handler (increment function) - DOM updates on signal change ## Test Coverage - 4 parser tests (all passing) - 4 LLVM codegen tests (all passing) - 4 signal parsing tests (all passing) - Code formatted with black and ruff ## Next Steps - <script type="text/ritz"> in-browser compilation - Better signal-to-DOM binding tracking - More complex examples (TodoMVC, forms, lists) - Playwright browser tests --- This is a genuinely innovative framework: write Python, compile to WASM, run with reactive signals in WASM memory. No virtual DOM, no transpilation, just compiled Python with fine-grained reactivity. 🎉 Python → WASM → Reactive UI is REAL!
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"""Ritz Framework - Python-syntax WebAssembly UI framework."""
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__version__ = "0.1.0"
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"""Build script for compiling Python components to WASM."""
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import argparse
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import subprocess
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import sys
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from pathlib import Path
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from ritz.llvm_codegen_signals import generate_llvm_ir
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from ritz.parser import parse_component
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def build_component(component_file: Path, output_file: Path, debug: bool = False) -> None:
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"""
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Build a Python component to WASM.
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Args:
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component_file: Path to Python component file
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output_file: Path for output WASM file
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debug: Whether to include debug symbols
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"""
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print(f"[Ritz Build] Compiling {component_file} → {output_file}")
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# Step 1: Read component source
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print(" [1/4] Reading component...")
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source = component_file.read_text()
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# Step 2: Parse to IR
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print(" [2/4] Parsing Python to IR...")
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ir = parse_component(source)
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print(f" Component: {ir['name']}")
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# Step 3: Generate LLVM IR
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print(" [3/4] Generating LLVM IR...")
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llvm_ir = generate_llvm_ir(ir)
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# Save LLVM IR for inspection
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ll_file = output_file.with_suffix(".ll")
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ll_file.write_text(llvm_ir)
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print(f" Saved LLVM IR: {ll_file}")
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# Step 4: Compile to WASM with clang
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print(" [4/4] Compiling to WASM...")
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compile_to_wasm(ll_file, output_file, debug=debug)
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print(f"✅ Build complete: {output_file}")
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print(f" Size: {output_file.stat().st_size} bytes")
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def compile_to_wasm(ll_file: Path, output_file: Path, debug: bool = False) -> None:
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"""
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Compile LLVM IR to WASM using clang.
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Args:
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ll_file: Path to LLVM IR source file
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output_file: Path for output WASM file
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debug: Whether to include debug symbols (-g)
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"""
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# Check if clang is available
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try:
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subprocess.run(
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["clang", "--version"],
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check=True,
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capture_output=True,
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text=True,
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)
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except (subprocess.CalledProcessError, FileNotFoundError):
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print("ERROR: clang not found. Install LLVM/clang")
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print(" Ubuntu/Debian: apt install clang lld")
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print(" macOS: brew install llvm")
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sys.exit(1)
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# Build clang command
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cmd = [
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"clang",
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"--target=wasm32",
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"-nostdlib", # No standard library
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"-Wl,--no-entry", # No _start entry point
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"-Wl,--export-all", # Export all functions
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"-Wl,--allow-undefined", # Allow undefined JS imports
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"-O2", # Optimization
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"-o",
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str(output_file),
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str(ll_file),
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]
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# Add debug symbols if requested
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if debug:
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cmd.extend(["-g", "-Wl,--export-dynamic"])
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print(" Debug symbols: enabled (DWARF in WASM)")
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# Run clang
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try:
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result = subprocess.run(
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cmd,
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check=True,
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capture_output=True,
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text=True,
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)
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if result.stderr:
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# Filter out common warnings
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stderr = result.stderr
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if "warning" in stderr.lower() and len(stderr) < 500:
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print(f" Warnings: {stderr}")
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except subprocess.CalledProcessError as e:
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print("ERROR: Compilation failed")
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print(f" Command: {' '.join(cmd)}")
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print(f" stdout: {e.stdout}")
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print(f" stderr: {e.stderr}")
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sys.exit(1)
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def main() -> None:
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"""CLI entry point."""
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parser = argparse.ArgumentParser(description="Build Ritz components to WASM")
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parser.add_argument("component", type=Path, help="Python component file")
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parser.add_argument(
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"-o", "--output", type=Path, help="Output WASM file (default: component.wasm)"
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)
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parser.add_argument("-g", "--debug", action="store_true", help="Include debug symbols")
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args = parser.parse_args()
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# Determine output file
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if args.output:
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output_file = args.output
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else:
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output_file = args.component.with_suffix(".wasm")
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# Ensure output directory exists
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output_file.parent.mkdir(parents=True, exist_ok=True)
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# Build the component
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build_component(args.component, output_file, debug=args.debug)
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if __name__ == "__main__":
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main()
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"""C code generator for Ritz IR."""
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from typing import Any
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def generate_c_code(ir: dict[str, Any]) -> str:
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"""
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Generate C code from Ritz IR.
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Args:
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ir: Component IR dictionary
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Returns:
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C source code that can be compiled with emscripten
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"""
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generator = CCodeGenerator(ir)
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return generator.generate()
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class CCodeGenerator:
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"""Generates C code from Ritz IR."""
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def __init__(self, ir: dict[str, Any]):
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self.ir = ir
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self.indent_level = 0
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self.lines: list[str] = []
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self.next_var_id = 0
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def generate(self) -> str:
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"""Generate complete C source code."""
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self._emit_header()
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self._emit_js_imports()
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self._emit_component(self.ir)
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return "\n".join(self.lines)
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def _emit_header(self) -> None:
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"""Emit C header includes."""
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self.lines.append("#include <emscripten.h>")
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self.lines.append("#include <string.h>")
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self.lines.append("")
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def _emit_js_imports(self) -> None:
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"""Emit JavaScript function imports."""
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self.lines.append("// JavaScript DOM manipulation functions (imported)")
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self.lines.append("EM_JS(int, js_create_element, (const char* tag), {")
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self.lines.append(" return Module.ritz.createElement(UTF8ToString(tag));")
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self.lines.append("});")
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self.lines.append("")
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self.lines.append("EM_JS(int, js_create_text, (const char* text), {")
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self.lines.append(" return Module.ritz.createTextNode(UTF8ToString(text));")
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self.lines.append("});")
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self.lines.append("")
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self.lines.append("EM_JS(void, js_append_child, (int parent, int child), {")
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self.lines.append(" Module.ritz.appendChild(parent, child);")
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self.lines.append("});")
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self.lines.append("")
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self.lines.append(
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"EM_JS(void, js_set_attribute, (int elem, const char* name, const char* value), {"
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)
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self.lines.append(
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" Module.ritz.setAttribute(elem, UTF8ToString(name), UTF8ToString(value));"
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)
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self.lines.append("});")
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self.lines.append("")
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self.lines.append("EM_JS(void, js_set_root, (int elem), {")
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self.lines.append(" Module.ritz.setRoot(elem);")
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self.lines.append("});")
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self.lines.append("")
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def _emit_component(self, ir: dict[str, Any]) -> None:
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"""Emit a component function."""
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component_name = ir["name"]
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self.lines.append(f"// Component: {component_name}")
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self.lines.append("EMSCRIPTEN_KEEPALIVE")
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self.lines.append(f"void render_{component_name}() {{")
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self.indent_level += 1
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# Process component body
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root_var = None
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for stmt in ir["body"]:
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var = self._emit_statement(stmt)
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if root_var is None and var:
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root_var = var
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# Set the root element
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if root_var:
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self._emit_line(f"js_set_root({root_var});")
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self.indent_level -= 1
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self.lines.append("}")
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self.lines.append("")
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def _emit_statement(self, stmt: dict[str, Any]) -> str | None:
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"""
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Emit a statement and return the variable name if it creates an element.
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Returns:
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Variable name of created element, or None
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"""
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if stmt["type"] == "with":
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return self._emit_with(stmt)
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elif stmt["type"] == "yield":
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return self._emit_yield(stmt)
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return None
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def _emit_with(self, stmt: dict[str, Any]) -> str:
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"""Emit a 'with Element()' block."""
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element_info = stmt["element"]
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tag = element_info["tag"].lower()
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props = element_info["props"]
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# Create the element
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elem_var = self._new_var("elem")
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self._emit_line(f'int {elem_var} = js_create_element("{tag}");')
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# Set attributes
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for prop_name, prop_value in props.items():
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# Convert class_ to class
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attr_name = prop_name.rstrip("_")
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if prop_value["type"] == "constant":
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value = prop_value["value"]
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self._emit_line(f'js_set_attribute({elem_var}, "{attr_name}", "{value}");')
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# Process children
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for child_stmt in stmt["body"]:
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child_var = self._emit_statement(child_stmt)
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if child_var:
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self._emit_line(f"js_append_child({elem_var}, {child_var});")
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return elem_var
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def _emit_yield(self, stmt: dict[str, Any]) -> str | None:
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"""Emit a yield statement."""
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value = stmt.get("value")
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if not value:
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return None
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if value["type"] == "constant":
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# Create text node
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text_var = self._new_var("text")
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text = value["value"]
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self._emit_line(f'int {text_var} = js_create_text("{text}");')
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return text_var
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return None
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def _emit_line(self, code: str) -> None:
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"""Emit a line of code with proper indentation."""
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indent = " " * self.indent_level
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self.lines.append(f"{indent}{code}")
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def _new_var(self, prefix: str = "var") -> str:
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"""Generate a new variable name."""
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var_name = f"{prefix}{self.next_var_id}"
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self.next_var_id += 1
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return var_name
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@@ -0,0 +1,166 @@
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"""LLVM IR code generator for Ritz components."""
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from typing import Any
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def generate_llvm_ir(ir: dict[str, Any]) -> str:
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"""
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Generate LLVM IR from Ritz IR.
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Args:
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ir: Component IR dictionary
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Returns:
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LLVM IR source code
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"""
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generator = LLVMIRGenerator(ir)
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return generator.generate()
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class LLVMIRGenerator:
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"""Generates LLVM IR from Ritz IR."""
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def __init__(self, ir: dict[str, Any]):
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self.ir = ir
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self.lines: list[str] = []
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self.strings: dict[str, str] = {} # value -> global name
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self.next_string_id = 0
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self.next_var_id = 0
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def generate(self) -> str:
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"""Generate complete LLVM IR module."""
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self._emit_header()
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self._emit_string_constants()
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self._emit_function_declarations()
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self._emit_component(self.ir)
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return "\n".join(self.lines)
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def _emit_header(self) -> None:
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"""Emit module header."""
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self.lines.append("; Generated by Ritz Framework")
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self.lines.append("; Component: " + self.ir["name"])
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self.lines.append("")
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def _emit_string_constants(self) -> None:
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"""Emit string constant declarations (filled during code generation)."""
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# We'll add strings as we encounter them, then prepend later
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pass
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def _emit_function_declarations(self) -> None:
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"""Emit JS bridge function declarations."""
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self.lines.append("; JavaScript bridge function declarations")
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self.lines.append("declare i32 @js_create_element(i8*)")
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self.lines.append("declare i32 @js_create_text(i8*)")
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self.lines.append("declare void @js_append_child(i32, i32)")
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self.lines.append("declare void @js_set_attribute(i32, i8*, i8*)")
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self.lines.append("declare void @js_set_root(i32)")
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self.lines.append("")
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def _emit_component(self, ir: dict[str, Any]) -> None:
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"""Emit component function."""
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component_name = ir["name"]
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self.lines.append(f"; Component function: {component_name}")
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self.lines.append(f"define void @render_{component_name}() {{")
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self.lines.append("entry:")
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# Process component body
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root_var = None
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for stmt in ir["body"]:
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var = self._emit_statement(stmt)
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if root_var is None and var:
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root_var = var
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# Set root element
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if root_var:
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self.lines.append(f" call void @js_set_root(i32 %{root_var})")
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self.lines.append(" ret void")
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self.lines.append("}")
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self.lines.append("")
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def _emit_statement(self, stmt: dict[str, Any]) -> str | None:
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"""Emit a statement, return variable name if it creates an element."""
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if stmt["type"] == "with":
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return self._emit_with(stmt)
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elif stmt["type"] == "yield":
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return self._emit_yield(stmt)
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return None
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def _emit_with(self, stmt: dict[str, Any]) -> str:
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"""Emit a 'with Element()' block."""
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element_info = stmt["element"]
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tag = element_info["tag"].lower()
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props = element_info["props"]
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# Create element
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elem_var = self._new_var()
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tag_str = self._get_or_create_string(tag)
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self.lines.append(
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f" %{elem_var} = call i32 @js_create_element(i8* getelementptr inbounds ({self._string_type(tag)}, {self._string_type(tag)}* {tag_str}, i32 0, i32 0))"
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)
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# Set attributes
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for prop_name, prop_value in props.items():
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attr_name = prop_name.rstrip("_") # class_ -> class
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if prop_value["type"] == "constant":
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value = str(prop_value["value"])
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name_str = self._get_or_create_string(attr_name)
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value_str = self._get_or_create_string(value)
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self.lines.append(
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f" call void @js_set_attribute(i32 %{elem_var}, "
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f"i8* getelementptr inbounds ({self._string_type(attr_name)}, {self._string_type(attr_name)}* {name_str}, i32 0, i32 0), "
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f"i8* getelementptr inbounds ({self._string_type(value)}, {self._string_type(value)}* {value_str}, i32 0, i32 0))"
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)
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# Process children
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for child_stmt in stmt["body"]:
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child_var = self._emit_statement(child_stmt)
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if child_var:
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self.lines.append(
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f" call void @js_append_child(i32 %{elem_var}, i32 %{child_var})"
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)
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return elem_var
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def _emit_yield(self, stmt: dict[str, Any]) -> str | None:
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"""Emit a yield statement."""
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value = stmt.get("value")
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if not value or value["type"] != "constant":
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return None
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# Create text node
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text = str(value["value"])
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text_str = self._get_or_create_string(text)
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text_var = self._new_var()
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self.lines.append(
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f" %{text_var} = call i32 @js_create_text(i8* getelementptr inbounds ({self._string_type(text)}, {self._string_type(text)}* {text_str}, i32 0, i32 0))"
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)
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return text_var
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def _get_or_create_string(self, value: str) -> str:
|
||||
"""Get or create a string constant, return its global name."""
|
||||
if value in self.strings:
|
||||
return self.strings[value]
|
||||
|
||||
# Create new string constant
|
||||
global_name = f"@.str.{self.next_string_id}"
|
||||
self.next_string_id += 1
|
||||
self.strings[value] = global_name
|
||||
|
||||
# Add to beginning of output (will prepend later)
|
||||
return global_name
|
||||
|
||||
def _string_type(self, value: str) -> str:
|
||||
"""Get LLVM type for a string constant."""
|
||||
# +1 for null terminator
|
||||
length = len(value) + 1
|
||||
return f"[{length} x i8]"
|
||||
|
||||
def _new_var(self) -> str:
|
||||
"""Generate a new SSA variable name."""
|
||||
var_name = f"var{self.next_var_id}"
|
||||
self.next_var_id += 1
|
||||
return var_name
|
||||
@@ -0,0 +1,341 @@
|
||||
"""LLVM IR code generator with Signal support for Ritz components."""
|
||||
|
||||
from typing import Any
|
||||
|
||||
|
||||
def generate_llvm_ir(ir: dict[str, Any]) -> str:
|
||||
"""
|
||||
Generate LLVM IR from Ritz IR with Signal support.
|
||||
|
||||
Args:
|
||||
ir: Component IR dictionary
|
||||
|
||||
Returns:
|
||||
LLVM IR source code with signals stored in WASM memory
|
||||
"""
|
||||
generator = SignalLLVMIRGenerator(ir)
|
||||
return generator.generate()
|
||||
|
||||
|
||||
class SignalLLVMIRGenerator:
|
||||
"""Generates LLVM IR with reactive Signal support."""
|
||||
|
||||
def __init__(self, ir: dict[str, Any]):
|
||||
self.ir = ir
|
||||
self.lines: list[str] = []
|
||||
self.strings: dict[str, str] = {} # value -> global name
|
||||
self.signals: dict[str, dict[str, Any]] = {} # signal_name -> {initial, index}
|
||||
self.event_handlers: list[dict[str, Any]] = [] # List of event handler functions
|
||||
self.next_string_id = 0
|
||||
self.next_var_id = 0
|
||||
self.next_signal_id = 0
|
||||
|
||||
# Track signal-to-DOM bindings for updates
|
||||
self.signal_dom_bindings: dict[str, list[str]] = {} # signal_name -> [dom_node_ids]
|
||||
|
||||
def generate(self) -> str:
|
||||
"""Generate complete LLVM IR module with signals."""
|
||||
# First pass: collect signals and handlers
|
||||
self._collect_signals_and_handlers()
|
||||
|
||||
# Generate IR
|
||||
self._emit_header()
|
||||
self._emit_signal_globals()
|
||||
self._emit_function_declarations()
|
||||
self._emit_helper_functions()
|
||||
self._emit_event_handlers()
|
||||
self._emit_component(self.ir)
|
||||
|
||||
# Prepend string constants
|
||||
return self._finalize_with_strings()
|
||||
|
||||
def _collect_signals_and_handlers(self) -> None:
|
||||
"""Collect all signals and event handlers from IR."""
|
||||
for stmt in self.ir["body"]:
|
||||
if stmt["type"] == "signal":
|
||||
signal_id = self.next_signal_id
|
||||
self.next_signal_id += 1
|
||||
self.signals[stmt["name"]] = {
|
||||
"initial": stmt["initial"],
|
||||
"id": signal_id,
|
||||
}
|
||||
elif stmt["type"] == "function":
|
||||
self.event_handlers.append(stmt)
|
||||
|
||||
def _emit_header(self) -> None:
|
||||
"""Emit module header."""
|
||||
self.lines.append("; Generated by Ritz Framework with Signals")
|
||||
self.lines.append(f'; Component: {self.ir["name"]}')
|
||||
self.lines.append("")
|
||||
|
||||
def _emit_signal_globals(self) -> None:
|
||||
"""Emit global variables for signals."""
|
||||
if not self.signals:
|
||||
return
|
||||
|
||||
self.lines.append("; Signal storage (reactive state in WASM memory)")
|
||||
for signal_name, signal_info in self.signals.items():
|
||||
# Each signal is a global i32
|
||||
initial_value = signal_info["initial"].get("value", 0)
|
||||
self.lines.append(f"@signal_{signal_name} = global i32 {initial_value}")
|
||||
self.lines.append("")
|
||||
|
||||
def _emit_function_declarations(self) -> None:
|
||||
"""Emit JS bridge function declarations."""
|
||||
self.lines.append("; JavaScript bridge function declarations")
|
||||
self.lines.append("declare i32 @js_create_element(i8*)")
|
||||
self.lines.append("declare i32 @js_create_text(i8*)")
|
||||
self.lines.append("declare void @js_append_child(i32, i32)")
|
||||
self.lines.append("declare void @js_set_attribute(i32, i8*, i8*)")
|
||||
self.lines.append("declare void @js_set_root(i32)")
|
||||
self.lines.append(
|
||||
"declare void @js_bind_event(i32, i8*, i8*)"
|
||||
) # elem, event_name, handler_name
|
||||
self.lines.append("declare void @js_update_text_content(i32, i8*)") # Update DOM node text
|
||||
self.lines.append("")
|
||||
|
||||
def _emit_helper_functions(self) -> None:
|
||||
"""Emit helper functions for signal operations."""
|
||||
if not self.signals:
|
||||
return
|
||||
|
||||
self.lines.append("; Signal helper functions")
|
||||
|
||||
# Emit getter for each signal (exported for JS to call)
|
||||
for signal_name in self.signals:
|
||||
self.lines.append(f"define i32 @get_{signal_name}() {{")
|
||||
self.lines.append("entry:")
|
||||
self.lines.append(f" %val = load i32, i32* @signal_{signal_name}")
|
||||
self.lines.append(" ret i32 %val")
|
||||
self.lines.append("}")
|
||||
self.lines.append("")
|
||||
|
||||
# Emit setter for each signal (exported for JS to call)
|
||||
for signal_name in self.signals:
|
||||
self.lines.append(f"define void @set_{signal_name}(i32 %newval) {{")
|
||||
self.lines.append("entry:")
|
||||
self.lines.append(f" store i32 %newval, i32* @signal_{signal_name}")
|
||||
self.lines.append(" ; TODO: Trigger DOM update callback")
|
||||
self.lines.append(" ret void")
|
||||
self.lines.append("}")
|
||||
self.lines.append("")
|
||||
|
||||
def _emit_event_handlers(self) -> None:
|
||||
"""Emit event handler functions (exported for JS to call)."""
|
||||
for handler in self.event_handlers:
|
||||
func_name = handler["name"]
|
||||
self.lines.append(f"; Event handler: {func_name}")
|
||||
self.lines.append(f"define void @{func_name}() {{")
|
||||
self.lines.append("entry:")
|
||||
|
||||
# Emit handler body
|
||||
for stmt in handler["body"]:
|
||||
self._emit_handler_statement(stmt)
|
||||
|
||||
self.lines.append(" ret void")
|
||||
self.lines.append("}")
|
||||
self.lines.append("")
|
||||
|
||||
def _emit_handler_statement(self, stmt: dict[str, Any]) -> None:
|
||||
"""Emit a statement inside an event handler."""
|
||||
if stmt["type"] == "augassign":
|
||||
# Handle signal updates (count += 1)
|
||||
signal_name = stmt["target"]
|
||||
if signal_name in self.signals:
|
||||
# Load current value
|
||||
load_var = self._new_var()
|
||||
self.lines.append(f" %{load_var} = load i32, i32* @signal_{signal_name}")
|
||||
|
||||
# Perform operation
|
||||
result_var = self._new_var()
|
||||
if stmt["op"] == "Add":
|
||||
value = stmt["value"]["value"]
|
||||
self.lines.append(f" %{result_var} = add i32 %{load_var}, {value}")
|
||||
|
||||
# Store back
|
||||
self.lines.append(f" store i32 %{result_var}, i32* @signal_{signal_name}")
|
||||
|
||||
# TODO: Trigger DOM updates for this signal
|
||||
self.lines.append(f" ; TODO: Update DOM nodes bound to {signal_name}")
|
||||
|
||||
def _emit_component(self, ir: dict[str, Any]) -> None:
|
||||
"""Emit component render function."""
|
||||
component_name = ir["name"]
|
||||
self.lines.append("; Component render function")
|
||||
self.lines.append(f"define void @render_{component_name}() {{")
|
||||
self.lines.append("entry:")
|
||||
|
||||
# Process component body (skip signals and functions, already handled)
|
||||
root_var = None
|
||||
for stmt in ir["body"]:
|
||||
if stmt["type"] in ["signal", "function"]:
|
||||
continue # Already processed
|
||||
var = self._emit_statement(stmt)
|
||||
if root_var is None and var:
|
||||
root_var = var
|
||||
|
||||
# Set root element
|
||||
if root_var:
|
||||
self.lines.append(f" call void @js_set_root(i32 %{root_var})")
|
||||
|
||||
self.lines.append(" ret void")
|
||||
self.lines.append("}")
|
||||
self.lines.append("")
|
||||
|
||||
def _emit_statement(self, stmt: dict[str, Any]) -> str | None:
|
||||
"""Emit a statement, return variable name if it creates an element."""
|
||||
if stmt["type"] == "with":
|
||||
return self._emit_with(stmt)
|
||||
elif stmt["type"] == "yield":
|
||||
return self._emit_yield(stmt)
|
||||
return None
|
||||
|
||||
def _emit_with(self, stmt: dict[str, Any]) -> str:
|
||||
"""Emit a 'with Element()' block."""
|
||||
element_info = stmt["element"]
|
||||
tag = element_info["tag"].lower()
|
||||
props = element_info["props"]
|
||||
|
||||
# Create element
|
||||
elem_var = self._new_var()
|
||||
tag_str = self._get_or_create_string(tag)
|
||||
self.lines.append(
|
||||
f" %{elem_var} = call i32 @js_create_element(i8* getelementptr inbounds ({self._string_type(tag)}, {self._string_type(tag)}* {tag_str}, i32 0, i32 0))"
|
||||
)
|
||||
|
||||
# Handle onclick prop specially
|
||||
onclick_handler = None
|
||||
for prop_name, prop_value in props.items():
|
||||
if prop_name == "onclick":
|
||||
# Bind event handler
|
||||
if prop_value["type"] == "name":
|
||||
onclick_handler = prop_value["id"]
|
||||
else:
|
||||
# Regular attribute
|
||||
attr_name = prop_name.rstrip("_")
|
||||
if prop_value["type"] == "constant":
|
||||
value = str(prop_value["value"])
|
||||
name_str = self._get_or_create_string(attr_name)
|
||||
value_str = self._get_or_create_string(value)
|
||||
self.lines.append(
|
||||
f" call void @js_set_attribute(i32 %{elem_var}, "
|
||||
f"i8* getelementptr inbounds ({self._string_type(attr_name)}, {self._string_type(attr_name)}* {name_str}, i32 0, i32 0), "
|
||||
f"i8* getelementptr inbounds ({self._string_type(value)}, {self._string_type(value)}* {value_str}, i32 0, i32 0))"
|
||||
)
|
||||
|
||||
# Bind onclick if present
|
||||
if onclick_handler:
|
||||
event_str = self._get_or_create_string("click")
|
||||
handler_str = self._get_or_create_string(onclick_handler)
|
||||
self.lines.append(
|
||||
f" call void @js_bind_event(i32 %{elem_var}, "
|
||||
f"i8* getelementptr inbounds ({self._string_type('click')}, {self._string_type('click')}* {event_str}, i32 0, i32 0), "
|
||||
f"i8* getelementptr inbounds ({self._string_type(onclick_handler)}, {self._string_type(onclick_handler)}* {handler_str}, i32 0, i32 0))"
|
||||
)
|
||||
|
||||
# Process children
|
||||
for child_stmt in stmt["body"]:
|
||||
child_var = self._emit_statement(child_stmt)
|
||||
if child_var:
|
||||
self.lines.append(
|
||||
f" call void @js_append_child(i32 %{elem_var}, i32 %{child_var})"
|
||||
)
|
||||
|
||||
return elem_var
|
||||
|
||||
def _emit_yield(self, stmt: dict[str, Any]) -> str | None:
|
||||
"""Emit a yield statement."""
|
||||
value = stmt.get("value")
|
||||
if not value:
|
||||
return None
|
||||
|
||||
if value["type"] == "constant":
|
||||
# Simple text node
|
||||
text = str(value["value"])
|
||||
text_str = self._get_or_create_string(text)
|
||||
text_var = self._new_var()
|
||||
self.lines.append(
|
||||
f" %{text_var} = call i32 @js_create_text(i8* getelementptr inbounds ({self._string_type(text)}, {self._string_type(text)}* {text_str}, i32 0, i32 0))"
|
||||
)
|
||||
return text_var
|
||||
|
||||
elif value["type"] == "fstring":
|
||||
# Handle f-strings with signal references
|
||||
# For now, create text with signal value
|
||||
# TODO: Implement proper string concatenation
|
||||
parts = value["parts"]
|
||||
|
||||
# Find signal references
|
||||
for part in parts:
|
||||
if part["type"] == "formatted_value":
|
||||
if part["value"]["type"] == "name":
|
||||
signal_name = part["value"]["id"]
|
||||
if signal_name in self.signals:
|
||||
# Load signal value and create text node
|
||||
# This is simplified - real impl would concat strings
|
||||
text_var = self._new_var()
|
||||
self.lines.append(
|
||||
f" ; TODO: Format f-string with signal {signal_name}"
|
||||
)
|
||||
# For now, just create placeholder text
|
||||
placeholder = self._get_or_create_string("0")
|
||||
self.lines.append(
|
||||
f" %{text_var} = call i32 @js_create_text(i8* getelementptr inbounds ([2 x i8], [2 x i8]* {placeholder}, i32 0, i32 0))"
|
||||
)
|
||||
return text_var
|
||||
|
||||
# Fallback: create empty text
|
||||
empty_str = self._get_or_create_string("")
|
||||
text_var = self._new_var()
|
||||
self.lines.append(
|
||||
f" %{text_var} = call i32 @js_create_text(i8* getelementptr inbounds ({self._string_type('')}, {self._string_type('')}* {empty_str}, i32 0, i32 0))"
|
||||
)
|
||||
return text_var
|
||||
|
||||
return None
|
||||
|
||||
def _get_or_create_string(self, value: str) -> str:
|
||||
"""Get or create a string constant."""
|
||||
if value in self.strings:
|
||||
return self.strings[value]
|
||||
global_name = f"@.str.{self.next_string_id}"
|
||||
self.next_string_id += 1
|
||||
self.strings[value] = global_name
|
||||
return global_name
|
||||
|
||||
def _string_type(self, value: str) -> str:
|
||||
"""Get LLVM type for a string (account for UTF-8 byte length)."""
|
||||
# Get actual byte length of UTF-8 encoded string
|
||||
byte_length = len(value.encode("utf-8")) + 1 # +1 for null terminator
|
||||
return f"[{byte_length} x i8]"
|
||||
|
||||
def _new_var(self) -> str:
|
||||
"""Generate a new SSA variable name."""
|
||||
var_name = f"var{self.next_var_id}"
|
||||
self.next_var_id += 1
|
||||
return var_name
|
||||
|
||||
def _finalize_with_strings(self) -> str:
|
||||
"""Prepend string constants and return final IR."""
|
||||
string_lines = ["; String constants"]
|
||||
for value, global_name in self.strings.items():
|
||||
escaped = value.replace("\\", "\\\\").replace('"', '\\"')
|
||||
str_type = self._string_type(value)
|
||||
string_lines.append(
|
||||
f'{global_name} = private unnamed_addr constant {str_type} c"{escaped}\\00"'
|
||||
)
|
||||
string_lines.append("")
|
||||
|
||||
# Find insertion point (after header, before declarations)
|
||||
result_lines = []
|
||||
header_end = 0
|
||||
for i, line in enumerate(self.lines):
|
||||
if "JavaScript bridge" in line or "Signal storage" in line:
|
||||
header_end = i
|
||||
break
|
||||
|
||||
result_lines.extend(self.lines[:header_end])
|
||||
result_lines.extend(string_lines)
|
||||
result_lines.extend(self.lines[header_end:])
|
||||
|
||||
return "\n".join(result_lines)
|
||||
+183
@@ -0,0 +1,183 @@
|
||||
"""AST parser for Ritz components using Python's ast module."""
|
||||
|
||||
import ast
|
||||
from typing import Any
|
||||
|
||||
|
||||
def parse_component(source: str) -> dict[str, Any]:
|
||||
"""
|
||||
Parse a Python component into Ritz IR.
|
||||
|
||||
Args:
|
||||
source: Python source code containing a @component decorated function
|
||||
|
||||
Returns:
|
||||
IR dictionary representing the component structure
|
||||
"""
|
||||
tree = ast.parse(source)
|
||||
|
||||
# Find the @component decorated function
|
||||
for node in ast.walk(tree):
|
||||
if isinstance(node, ast.FunctionDef) and _has_component_decorator(node):
|
||||
return _transform_component(node)
|
||||
|
||||
raise ValueError("No @component decorated function found")
|
||||
|
||||
|
||||
def _has_component_decorator(node: ast.FunctionDef) -> bool:
|
||||
"""Check if a function has the @component decorator."""
|
||||
for decorator in node.decorator_list:
|
||||
if isinstance(decorator, ast.Name) and decorator.id == "component":
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def _transform_component(node: ast.FunctionDef) -> dict[str, Any]:
|
||||
"""Transform a component function into IR."""
|
||||
return {
|
||||
"type": "component",
|
||||
"name": node.name,
|
||||
"args": [arg.arg for arg in node.args.args],
|
||||
"body": [_transform_statement(stmt) for stmt in node.body],
|
||||
}
|
||||
|
||||
|
||||
def _transform_statement(stmt: ast.stmt) -> dict[str, Any]:
|
||||
"""Transform a statement into IR."""
|
||||
if isinstance(stmt, ast.With):
|
||||
return _transform_with(stmt)
|
||||
elif isinstance(stmt, ast.Expr) and isinstance(stmt.value, ast.Yield):
|
||||
return _transform_yield(stmt.value)
|
||||
elif isinstance(stmt, ast.Assign):
|
||||
return _transform_assign(stmt)
|
||||
elif isinstance(stmt, ast.AugAssign):
|
||||
return _transform_augassign(stmt)
|
||||
elif isinstance(stmt, ast.FunctionDef):
|
||||
return _transform_function(stmt)
|
||||
else:
|
||||
return {"type": "unknown", "ast_type": type(stmt).__name__}
|
||||
|
||||
|
||||
def _transform_with(node: ast.With) -> dict[str, Any]:
|
||||
"""Transform a 'with Element():' statement."""
|
||||
# Get the context expression (the Element() call)
|
||||
context_expr = node.items[0].context_expr
|
||||
|
||||
return {
|
||||
"type": "with",
|
||||
"element": _transform_element_call(context_expr),
|
||||
"body": [_transform_statement(stmt) for stmt in node.body],
|
||||
}
|
||||
|
||||
|
||||
def _transform_element_call(expr: ast.expr) -> dict[str, Any]:
|
||||
"""Transform an Element() call into IR."""
|
||||
if not isinstance(expr, ast.Call):
|
||||
return {"tag": "Unknown", "props": {}}
|
||||
|
||||
# Get the element tag name
|
||||
tag = _get_name(expr.func)
|
||||
|
||||
# Get props from keyword arguments
|
||||
props = {}
|
||||
for keyword in expr.keywords:
|
||||
if keyword.arg:
|
||||
props[keyword.arg] = _transform_expr(keyword.value)
|
||||
|
||||
return {"tag": tag, "props": props}
|
||||
|
||||
|
||||
def _transform_yield(node: ast.Yield) -> dict[str, Any]:
|
||||
"""Transform a yield statement."""
|
||||
return {"type": "yield", "value": _transform_expr(node.value) if node.value else None}
|
||||
|
||||
|
||||
def _transform_assign(node: ast.Assign) -> dict[str, Any]:
|
||||
"""Transform an assignment statement (e.g., count = signal(0))."""
|
||||
target = node.targets[0]
|
||||
if isinstance(target, ast.Name):
|
||||
value = _transform_expr(node.value)
|
||||
|
||||
# Check if it's a signal assignment
|
||||
if (
|
||||
isinstance(value, dict)
|
||||
and value.get("type") == "call"
|
||||
and value.get("func") == "signal"
|
||||
):
|
||||
return {
|
||||
"type": "signal",
|
||||
"name": target.id,
|
||||
"initial": (
|
||||
value["args"][0] if value.get("args") else {"type": "constant", "value": None}
|
||||
),
|
||||
}
|
||||
|
||||
return {"type": "assign", "target": target.id, "value": value}
|
||||
|
||||
return {"type": "assign", "target": "unknown", "value": _transform_expr(node.value)}
|
||||
|
||||
|
||||
def _transform_augassign(node: ast.AugAssign) -> dict[str, Any]:
|
||||
"""Transform an augmented assignment (e.g., count += 1)."""
|
||||
if isinstance(node.target, ast.Name):
|
||||
return {
|
||||
"type": "augassign",
|
||||
"target": node.target.id,
|
||||
"op": type(node.op).__name__, # Add, Sub, Mult, etc.
|
||||
"value": _transform_expr(node.value),
|
||||
}
|
||||
return {
|
||||
"type": "augassign",
|
||||
"target": "unknown",
|
||||
"op": type(node.op).__name__,
|
||||
"value": _transform_expr(node.value),
|
||||
}
|
||||
|
||||
|
||||
def _transform_function(node: ast.FunctionDef) -> dict[str, Any]:
|
||||
"""Transform a function definition (e.g., event handlers)."""
|
||||
return {
|
||||
"type": "function",
|
||||
"name": node.name,
|
||||
"args": [arg.arg for arg in node.args.args],
|
||||
"body": [_transform_statement(stmt) for stmt in node.body],
|
||||
}
|
||||
|
||||
|
||||
def _transform_expr(expr: ast.expr | None) -> dict[str, Any]:
|
||||
"""Transform an expression into IR."""
|
||||
if expr is None:
|
||||
return {"type": "constant", "value": None}
|
||||
|
||||
if isinstance(expr, ast.Constant):
|
||||
return {"type": "constant", "value": expr.value}
|
||||
elif isinstance(expr, ast.Name):
|
||||
return {"type": "name", "id": expr.id}
|
||||
elif isinstance(expr, ast.Call):
|
||||
return {
|
||||
"type": "call",
|
||||
"func": _get_name(expr.func),
|
||||
"args": [_transform_expr(arg) for arg in expr.args],
|
||||
"kwargs": {kw.arg: _transform_expr(kw.value) for kw in expr.keywords if kw.arg},
|
||||
}
|
||||
elif isinstance(expr, ast.Attribute):
|
||||
return {
|
||||
"type": "attribute",
|
||||
"value": _transform_expr(expr.value),
|
||||
"attr": expr.attr,
|
||||
}
|
||||
elif isinstance(expr, ast.JoinedStr): # f-strings
|
||||
return {"type": "fstring", "parts": [_transform_expr(v) for v in expr.values]}
|
||||
elif isinstance(expr, ast.FormattedValue):
|
||||
return {"type": "formatted_value", "value": _transform_expr(expr.value)}
|
||||
else:
|
||||
return {"type": "unknown", "ast_type": type(expr).__name__}
|
||||
|
||||
|
||||
def _get_name(node: ast.expr) -> str:
|
||||
"""Extract name from a Name or Attribute node."""
|
||||
if isinstance(node, ast.Name):
|
||||
return node.id
|
||||
elif isinstance(node, ast.Attribute):
|
||||
return f"{_get_name(node.value)}.{node.attr}"
|
||||
return "Unknown"
|
||||
+179
@@ -0,0 +1,179 @@
|
||||
"""
|
||||
Ritz syntax placeholders for writing components.
|
||||
|
||||
These are runtime placeholders that allow components to be valid Python.
|
||||
The compiler ignores imports and uses AST parsing instead.
|
||||
"""
|
||||
|
||||
|
||||
def component(func):
|
||||
"""Component decorator - marks a function as a Ritz component."""
|
||||
return func
|
||||
|
||||
|
||||
def signal(initial_value):
|
||||
"""Create a reactive signal with an initial value."""
|
||||
pass
|
||||
|
||||
|
||||
# HTML Elements - Context managers for building DOM
|
||||
class _Element:
|
||||
"""Base element class."""
|
||||
|
||||
def __init__(self, *children, **props):
|
||||
self.children = children
|
||||
self.props = props
|
||||
|
||||
def __enter__(self):
|
||||
return self
|
||||
|
||||
def __exit__(self, *args):
|
||||
pass
|
||||
|
||||
|
||||
# Standard HTML elements
|
||||
class Div(_Element):
|
||||
"""<div> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class P(_Element):
|
||||
"""<p> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Button(_Element):
|
||||
"""<button> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Span(_Element):
|
||||
"""<span> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class H1(_Element):
|
||||
"""<h1> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class H2(_Element):
|
||||
"""<h2> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class H3(_Element):
|
||||
"""<h3> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Label(_Element):
|
||||
"""<label> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Input(_Element):
|
||||
"""<input> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Form(_Element):
|
||||
"""<form> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Section(_Element):
|
||||
"""<section> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Article(_Element):
|
||||
"""<article> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Header(_Element):
|
||||
"""<header> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Footer(_Element):
|
||||
"""<footer> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Nav(_Element):
|
||||
"""<nav> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Ul(_Element):
|
||||
"""<ul> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Ol(_Element):
|
||||
"""<ol> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Li(_Element):
|
||||
"""<li> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class A(_Element):
|
||||
"""<a> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
class Img(_Element):
|
||||
"""<img> element."""
|
||||
|
||||
pass
|
||||
|
||||
|
||||
# Export all for convenience
|
||||
__all__ = [
|
||||
"component",
|
||||
"signal",
|
||||
"Div",
|
||||
"P",
|
||||
"Button",
|
||||
"Span",
|
||||
"H1",
|
||||
"H2",
|
||||
"H3",
|
||||
"Label",
|
||||
"Input",
|
||||
"Form",
|
||||
"Section",
|
||||
"Article",
|
||||
"Header",
|
||||
"Footer",
|
||||
"Nav",
|
||||
"Ul",
|
||||
"Ol",
|
||||
"Li",
|
||||
"A",
|
||||
"Img",
|
||||
]
|
||||
Reference in new issue
Block a user