ggen-core 26.7.2

Core graph-aware code generation engine
Documentation 
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WHITESPACE = _{ " " | "\t" | "\n" | "\r" }

// Schema definition
schema = { SOI ~ identifier ~ fields ~ EOI }

// Fields block
fields = { "{" ~ field_list? ~ "}" }

field_list = { field ~ ("," ~ field)* ~ ","? }

// Single field definition (supports both field?: type and field: type? syntaxes)
field = {
    identifier ~ optional_marker ~ ":" ~ type_ |  // TypeScript-style: field?: type
    identifier ~ ":" ~ type_ ~ optional_marker?    // Rust-style: field: Type?
}

optional_marker = { "?" }

// Type definitions - fixed to avoid left recursion
type_ = {
    array_type |
    primitive_type |
    named_type
}

array_type = {
    (primitive_type | named_type) ~ "[]"
}

primitive_type = {
    "string" | "integer" | "boolean" | "float" | "any"
}

named_type = @{ identifier }

// Identifiers
identifier = { ASCII_ALPHA ~ (ASCII_ALPHANUMERIC | "_" )* }