38 lines
1.0 KiB
Plaintext
38 lines
1.0 KiB
Plaintext
WHITESPACE = _{ " " | "\t" | "\r" | "\n" }
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COMMENT = _{ "//" ~ (!"\n" ~ ANY)* }
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program = { SOI ~ item* ~ EOI }
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item = _{ import_decl | function_decl | struct_decl }
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// primitives
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identifier = @{ (ASCII_ALPHA | "_") ~ (ASCII_ALPHANUMERIC | "_")* }
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integer = @{ ASCII_DIGIT+ }
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float = @{ ASCII_DIGIT+ ~ "." ~ ASCII_DIGIT+ }
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boolean = { "true" | "false" }
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string_lit = { "\"" ~ inner_str ~ "\"" }
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inner_str = @{ (!"\"" ~ ANY)* }
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// ================= TOP LEVEL =================
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import_decl = { "import" ~ string_lit ~ ";" }
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struct_field = { identifier ~ ":" ~ type_expr ~ ";" }
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struct_decl = {
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"struct" ~ identifier ~ "{" ~ struct_field* ~ "}"
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}
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param_list = { param ~ ("," ~ param)* ~ ","? }
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param = { identifier ~ ":" ~ type_expr }
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function_decl = {
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"function" ~ identifier ~ "(" ~ param_list? ~ ")" ~ ("->" ~ type_expr)? ~ block
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}
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// ================= STATEMENTS =================
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block = { "{" ~ statement* ~ "}" }
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statement = _{ "idk" }
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// ================= EXPRESSIONS =================
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type_expr = _{ identifier }
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