Function _strip_rescript_noise

code_review_graph/parser.py:613–677

Replace ReScript comments and string/backtick content with spaces. Newlines are preserved so absolute offsets still map back to accurate line numbers. ReScript block comments may nest, so we track depth.

(text: str)

def _strip_rescript_noise(text: str) -> str:
    """Replace ReScript comments and string/backtick content with spaces.

    Newlines are preserved so absolute offsets still map back to accurate
    line numbers. ReScript block comments may nest, so we track depth.
    """
    out: list[str] = []
    i = 0
    n = len(text)
    while i < n:
        c = text[i]
        nxt = text[i + 1] if i + 1 < n else ""
        # Line comment
        if c == "/" and nxt == "/":
            while i < n and text[i] != "\n":
                out.append(" ")
                i += 1
            continue
        # Nestable block comment
        if c == "/" and nxt == "*":
            depth = 1
            out.append("  ")
            i += 2
            while i < n and depth > 0:
                if i + 1 < n and text[i] == "/" and text[i + 1] == "*":
                    depth += 1
                    out.append("  ")
                    i += 2
                elif i + 1 < n and text[i] == "*" and text[i + 1] == "/":
                    depth -= 1
                    out.append("  ")
                    i += 2
                else:
                    out.append("\n" if text[i] == "\n" else " ")
                    i += 1
            continue
        # Double-quoted string — blank content, keep quotes + newlines.
        if c == '"':
            out.append('"')
            i += 1
            while i < n and text[i] != '"':
                if text[i] == "\\" and i + 1 < n:
                    out.append("  ")
                    i += 2
                    continue
                out.append("\n" if text[i] == "\n" else " ")
                i += 1
            if i < n:
                out.append('"')
                i += 1
            continue
        # Backtick template string — blank content, preserve newlines.
        if c == "`":
            out.append("`")
            i += 1
            while i < n and text[i] != "`":
                out.append("\n" if text[i] == "\n" else " ")
                i += 1