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arcmem heap object format (human-readable)
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| // top level is a throwaway heap object | |
| // first heap object to be declared at the top level is the root object | |
| // aligned concat (using alignment of token2) | |
| <token1> , <token2> | |
| // 1-byte packed concat (token2 alignment is treated as if 1) | |
| <token1> <token2> | |
| // zero-pad stream to largest aligned member since last statement or beginning of scope (struct alignment) | |
| ; | |
| // concat zero-terminated string token (1 byte al) | |
| "bleh" | |
| // concat unterminated string token (1 byte al) | |
| 'bleh' | |
| // concat little-endian integer (variable al); default is `s32` | |
| // 0x, 0b select base 16, 2; suffix :s16 :u16 etc. selects alignment, sign-extension | |
| 1234 | |
| // concat float or double (4/8 byte al); default is `f32` | |
| // 0x selects base 16 | |
| 1234.0:f32, 1234.0:f64 | |
| // allocates one heap object and concat pointer to it to the parent (8 byte al) | |
| { ... } | |
| // concat null pointer (8 byte al) | |
| null | |
| // declare a pointer label to this offset within an object, concat nothing | |
| *label | |
| // concat a hard pointer (8-byte al) | |
| label | |
| // concat a soft pointer (8-byte al) | |
| ~label | |
| // concat a hard offset pointer (8-byte al) | |
| label+<offset> | |
| // concat a soft offset pointer (8-byte al) | |
| ~label+<offset> | |
| // concat inline from pointered data from byte offset `start` to end of object | |
| label[<start>:] | |
| // concat inline `end` bytes from pointered data | |
| label[:<end>] | |
| // concat inline a slice from pointered data | |
| label[<start>:<end>] | |
| // concat inline pointered data until next label | |
| label[:] | |
| // concat inline pointered data entirely | |
| label[] |
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