mirror of
https://github.com/pmret/papermario.git
synced 2024-09-19 16:01:48 +02:00
839 lines
27 KiB
Python
Executable File
839 lines
27 KiB
Python
Executable File
#! /usr/bin/python3
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from sys import argv, stdin, stderr
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from lark import Lark, exceptions, Tree, Transformer, Visitor, v_args, Token
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from lark.visitors import Discard
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import traceback
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DEBUG_OUTPUT = None # "debug.i"
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def eprint(*args, **kwargs):
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print(*args, file=stderr, **kwargs)
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#write_buf = ""
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def write(s):
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#global write_buf
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#write_buf += s
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print(s, end="")
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if DEBUG_OUTPUT:
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print(s, file=DEBUG_OUTPUT, end="")
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ANSI_RED = "\033[1;31;40m"
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ANSI_RESET = "\u001b[0m"
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def pairs(seq):
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i = iter(seq)
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prev = next(i)
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for item in i:
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yield prev, item
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prev = item
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script_parser = Lark(r"""
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block: "{" (_block SEMICOLON*)? "}"
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_block: stmt SEMICOLON _block
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| stmt_no_semi SEMICOLON? _block
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| stmt SEMICOLON
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| stmt_no_semi
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?stmt: call
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| "goto" label -> label_goto
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| "return" -> return_stmt
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| "break" -> break_stmt
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| "sleep" expr -> sleep_stmt
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| "sleep" expr "secs" -> sleep_secs_stmt
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| "spawn" expr -> spawn_stmt
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| "await" expr -> await_stmt
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| lhs "=" "spawn" expr -> spawn_set_stmt
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| lhs set_op expr -> set_stmt
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| lhs set_op "f" expr -> set_float_stmt
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| lhs set_op "c" expr -> set_const_stmt
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| bind_stmt
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| bind_set_stmt
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| "unbind" -> unbind_stmt
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| "group" expr -> set_group
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| suspend_stmt
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| resume_stmt
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| kill_stmt
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?stmt_no_semi: label ":" -> label_decl
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| if_stmt
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| match_stmt
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| loop_stmt
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| loop_until_stmt
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| ["await"] block -> block_stmt
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| "spawn" block -> spawn_block_stmt
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| "parallel" block -> parallel_block_stmt
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call: (c_identifier | HEX_INT) "(" [expr ("," expr)* [","]] ")"
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if_stmt: "if" "(" expr cond_op expr ")" block ["else" block]
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?cond_op: "==" -> cond_op_eq
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| "!=" -> cond_op_ne
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| ">" -> cond_op_gt
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| "<" -> cond_op_lt
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| ">=" -> cond_op_ge
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| "<=" -> cond_op_le
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| "&" -> cond_op_flag
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| "!&" -> cond_op_not_flag
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match_stmt: "match" expr "{" (match_cases SEMICOLON*)? "}"
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match_const_stmt: "matchc" expr "{" (match_cases SEMICOLON*)? "}"
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match_cases: match_case SEMICOLON* match_cases
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| match_case
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?match_case: "else" block -> case_else
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| cond_op expr ["," multi_case] block -> case_op
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| expr ".." expr ["," multi_case] block -> case_range
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| multi_case block -> case_multi
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multi_case: expr ("," expr)*
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suspend_stmt: "suspend" control_type expr ("," control_type expr)* [","]
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resume_stmt: "resume" control_type expr ("," control_type expr)* [","]
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kill_stmt: "kill" control_type expr ("," control_type expr)* [","]
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?control_type: "group" -> control_type_group
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| "others" -> control_type_others
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| ["script"] -> control_type_script
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bind_stmt: "bind" expr "to" expr expr
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bind_set_stmt: lhs "=" "bind" expr "to" expr expr
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loop_stmt: "loop" [expr] block
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loop_until_stmt: "loop" block "until" "(" expr cond_op expr ")"
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?expr: c_const_expr
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| ESCAPED_STRING
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| SIGNED_INT
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| SIGNED_DECIMAL
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| HEX_INT
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| variable
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| c_identifier
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?lhs: c_const_expr
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| variable
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?set_op: "=" -> set_op_eq
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| "+=" -> set_op_add
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| "-=" -> set_op_sub
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| "*=" -> set_op_mul
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| "/=" -> set_op_div
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| "%=" -> set_op_mod
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| "&=" -> set_op_and
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| "|=" -> set_op_or
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variable: "$" CNAME
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c_identifier: CNAME
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c_const_expr: "(" c_const_expr_internal ")"
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c_const_expr_internal: "(" (c_const_expr_internal | NOT_PARENS)+ ")"
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NOT_PARENS: /[^()]+/
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SEMICOLON: ";"
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label: /[a-zA-Z0-9_]+/
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%import common.CNAME
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%import common.SIGNED_INT
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%import common.DECIMAL
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%import common.HEXDIGIT
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%import common.ESCAPED_STRING
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SIGNED_DECIMAL: ["+"|"-"] DECIMAL
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HEX_INT: ["+"|"-"] "0x" HEXDIGIT+
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LINE_COMMENT: "//" /[^\n]*/ NEWLINE
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%ignore LINE_COMMENT
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%import common.WS_INLINE
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%import common.NEWLINE
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%ignore WS_INLINE
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%ignore NEWLINE
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""", start="block", propagate_positions=True)#, parser="lalr", cache=True)
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class BaseCmd():
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def __init__(self, *args, **kwargs):
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self.args = args
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self.meta = kwargs.get("meta", None)
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self.context = [RootCtx()]
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def add_context(self, ctx):
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if not isinstance(ctx, CmdCtx):
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raise Exception()
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self.context.insert(0, ctx)
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# must be overloaded
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def opcode(self):
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raise Exception()
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def to_bytecode(self):
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return [ self.opcode(), len(self.args), *self.args ]
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def __str__(self):
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return f"Cmd({self.opcode()}, {', '.join(map(str, self.args))})"
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class Cmd(BaseCmd):
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def __init__(self, opcode, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self._opcode = opcode
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def opcode(self):
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return self._opcode
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class BreakCmd(BaseCmd):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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def opcode(self):
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for ctx in self.context:
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opcode = ctx.break_opcode(self.meta)
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if opcode:
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return opcode
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def __str__(self):
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return "BreakCmd"
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class CmdCtx():
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def break_opcode(self, meta):
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pass
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class RootCtx(CmdCtx):
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def break_opcode(self, meta):
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return "ScriptOpcode_END"
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class IfCtx(CmdCtx):
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pass
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class MatchCtx(CmdCtx):
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def break_opcode(self, meta):
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return "ScriptOpcode_BREAK_MATCH"
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class LoopCtx(CmdCtx):
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def break_opcode(self, meta):
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return "ScriptOpcode_BREAK_LOOP"
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class LoopUntilCtx(CmdCtx):
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def break_opcode(self, meta):
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raise CompileError("breaking out of a loop..until is not supported (hint: use a label)", meta)
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class LabelCtx(CmdCtx):
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def __init__(self, label):
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super().__init__()
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self.label = label
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# TODO: implement break_opcode so you can do lbl: loop { break lbl }
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class BlockCtx(CmdCtx):
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pass
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class SpawnCtx(CmdCtx):
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pass
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class ParallelCtx(CmdCtx):
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pass
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class CompileError(Exception):
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def __init__(self, message, meta):
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super().__init__(message)
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self.meta = meta
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def is_fixed_var(v):
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if type(v) == int:
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if v <= -250000000:
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return False
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elif v <= -220000000:
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return True
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return False
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class LabelAllocation(Visitor):
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def __init__(self):
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super().__init__()
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self.labels = []
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self.variables = []
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def label_decl(self, tree):
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name = tree.children[0].children[0]
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if name in self.labels:
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raise CompileError(f"label `{name}' already declared", tree.meta)
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try:
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label_idx = int(name)
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while len(self.labels) <= label_idx:
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self.labels.append(None)
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self.labels[label_idx] = name
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except ValueError:
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self.labels.append(name)
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def variable(self, tree):
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name = tree.children[0]
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if name not in self.variables:
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self.variables.append(name)
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if len(self.variables) > 16:
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raise CompileError("too many variables (max 16)", tree.meta)
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def gen_label(self):
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self.labels.append("$generated")
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return len(self.labels) - 1
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@v_args(tree=True)
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class Compile(Transformer):
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SIGNED_INT = str
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HEX_INT = str
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def transform(self, tree):
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self.alloc = LabelAllocation()
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self.alloc.visit_topdown(tree)
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return super().transform(tree)
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def c_identifier(self, tree):
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return f"(Bytecode)(&{tree.children[0]})"
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def ESCAPED_STRING(self, str_with_quotes):
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return f"(Bytecode)({str_with_quotes})"
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NOT_PARENS = str
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def c_const_expr_internal(self, tree):
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return f"({' '.join(tree.children)})"
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def c_const_expr(self, tree):
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return f"(Bytecode){tree.children[0]}"
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def SIGNED_DECIMAL(self, v):
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# fixed-point
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return int((float(v) * 1024) - 230000000)
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def block(self, tree):
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# flatten children list
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flat = []
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for node in tree.children:
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if type(node) is list:
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flat += node
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elif isinstance(node, BaseCmd):
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flat.append(node)
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elif isinstance(node, Token) and (node.value.startswith("\n") or node.value == ";"):
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pass
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else:
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raise Exception(f"block statment {type(node)} is not a BaseCmd: {node}")
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return flat
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def _block(self, tree):
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if len(tree.children) == 1:
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return [tree.children[0]]
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else:
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return [tree.children[0], *tree.children[2]]
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def call(self, tree):
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# TODO: type checking etc
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return Cmd("ScriptOpcode_CALL", *tree.children, meta=tree.meta)
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def if_stmt(self, tree):
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if len(tree.children) == 4: # no else
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a, op, b, block = tree.children
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for cmd in block:
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if isinstance(cmd, BaseCmd):
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cmd.add_context(IfCtx())
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return [ Cmd(op["if"], a, b, meta=tree.meta), *block, Cmd("ScriptOpcode_END_IF") ]
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else:
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a, op, b, block, else_block = tree.children
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for cmd in block:
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if isinstance(cmd, BaseCmd):
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cmd.add_context(IfCtx())
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for cmd in else_block:
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if isinstance(cmd, BaseCmd):
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cmd.add_context(IfCtx())
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return [ Cmd(op["if"], a, b, meta=tree.meta), *block, Cmd("ScriptOpcode_ELSE"), *else_block, Cmd("ScriptOpcode_END_IF") ]
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def cond_op_eq(self, tree): return { "if": "ScriptOpcode_IF_EQ", "case": "ScriptOpcode_CASE_EQ" }
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def cond_op_ne(self, tree): return { "if": "ScriptOpcode_IF_NE", "case": "ScriptOpcode_CASE_NE" }
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def cond_op_lt(self, tree): return { "if": "ScriptOpcode_IF_LT", "case": "ScriptOpcode_CASE_LT" }
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def cond_op_gt(self, tree): return { "if": "ScriptOpcode_IF_GT", "case": "ScriptOpcode_CASE_GT" }
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def cond_op_le(self, tree): return { "if": "ScriptOpcode_IF_LE", "case": "ScriptOpcode_CASE_LE" }
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def cond_op_ge(self, tree): return { "if": "ScriptOpcode_IF_GE", "case": "ScriptOpcode_CASE_GE" }
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def cond_op_flag(self, tree): return { "__op__": "&", "if": "ScriptOpcode_IF_FLAG", "case": "ScriptOpcode_CASE_FLAG" }
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def cond_op_not_flag(self, tree): return { "__op__": "!&", "if": "ScriptOpcode_IF_NOT_FLAG" }
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def match_stmt(self, tree):
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expr = tree.children[0]
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cases = []
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for node in tree.children[1:]:
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if type(node) is list:
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for el in node:
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if type(el) is list:
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cases += el
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else:
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cases.append(el)
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for cmd in cases:
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if isinstance(cmd, BaseCmd):
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cmd.add_context(MatchCtx())
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else:
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raise Exception(f"uncompiled match case: {cmd}")
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return [
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Cmd("ScriptOpcode_MATCH", expr, meta=tree.meta),
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*cases,
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Cmd("ScriptOpcode_END_MATCH"),
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]
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def match_const_stmt(self, tree):
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commands = self.match_stmt(tree)
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commands[0].opcode = "ScriptOpcode_MATCH_CONST"
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return commands
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def match_cases(self, tree):
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if len(tree.children) == 1:
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return [tree.children[0]]
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else:
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return [tree.children[0], *tree.children[1]]
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def case_else(self, tree):
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return [Cmd("ScriptOpcode_CASE_ELSE"), *tree.children[0]]
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def case_op(self, tree):
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if len(tree.children) == 4:
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op, expr, multi_case, block = tree.children
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if not "case" in op:
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raise CompileError(f"operation `{opcodes['__op__']}' not supported in match cases", tree.meta)
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return [Cmd(op["case"], expr), *multi_case, *block, Cmd("ScriptOpcode_END_CASE_MULTI")]
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else:
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op, expr, block = tree.children
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if not "case" in op:
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raise CompileError(f"operation `{opcodes['__op__']}' not supported in match cases", tree.meta)
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return [Cmd(op["case"], expr), *block]
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def case_range(self, tree):
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if len(tree.children) == 4:
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a, b, multi_case, block = tree.children
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return [Cmd("ScriptOpcode_CASE_RANGE", a, b), *multi_case, *block, Cmd("ScriptOpcode_END_CASE_MULTI")]
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else:
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a, b, block = tree.children
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return [Cmd("ScriptOpcode_CASE_RANGE", a, b), *block]
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def case_multi(self, tree):
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multi_case, block = tree.children
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return [*multi_case, *block, Cmd("ScriptOpcode_END_CASE_MULTI")]
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def multi_case(self, tree):
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return [Cmd("ScriptOpcode_CASE_MULTI_OR_EQ", expr) for expr in tree.children]
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def loop_stmt(self, tree):
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expr = tree.children.pop(0) if len(tree.children) > 1 else 0
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block = tree.children[0]
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for cmd in block:
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if isinstance(cmd, BaseCmd):
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cmd.add_context(LoopCtx())
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return [ Cmd("ScriptOpcode_LOOP", expr, meta=tree.meta), *block, Cmd("ScriptOpcode_END_LOOP") ]
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# loop..until pseudoinstruction
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def loop_until_stmt(self, tree):
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block, a, op, b = tree.children
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for cmd in block:
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if isinstance(cmd, BaseCmd):
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cmd.add_context(LoopUntilCtx())
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label = self.alloc.gen_label()
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return [
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Cmd("ScriptOpcode_LABEL", label, meta=tree.meta),
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*block,
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Cmd(op["if"], a, b, meta=tree.meta),
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Cmd("ScriptOpcode_GOTO", label, meta=tree.meta),
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Cmd("ScriptOpcode_END_IF", meta=tree.meta),
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]
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def return_stmt(self, tree):
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return Cmd("ScriptOpcode_RETURN", meta=tree.meta)
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def break_stmt(self, tree):
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return BreakCmd(meta=tree.meta)
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def set_group(self, tree):
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return Cmd("ScriptOpcode_SET_GROUP", tree.children[0], meta=tree.meta)
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def suspend_stmt(self, tree):
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commands = []
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for opcodes, expr in pairs(tree.children):
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if not "suspend" in opcodes:
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raise CompileError(f"`suspend {opcodes['__control_type__']}' not supported", meta=tree.meta)
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commands.append(Cmd(opcodes["suspend"], expr, meta=tree.meta))
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return commands
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def resume_stmt(self, tree):
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commands = []
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for opcodes, expr in pairs(tree.children):
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if not "resume" in opcodes:
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raise CompileError(f"`resume {opcodes['__control_type__']}' not supported", meta=tree.meta)
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commands.append(Cmd(opcodes["resume"], expr, meta=tree.meta))
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return commands
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def kill_stmt(self, tree):
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commands = []
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for opcodes, expr in pairs(tree.children):
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if not "kill" in opcodes:
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raise CompileError(f"`kill {opcodes['__control_type__']}' not supported", meta=tree.meta)
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commands.append(Cmd(opcodes["kill"], expr, meta=tree.meta))
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return commands
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def control_type_group(self, tree):
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return {
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"__control_type__": "group",
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"suspend": "ScriptOpcode_SUSPEND_GROUP",
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"resume": "ScriptOpcode_RESUME_GROUP",
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}
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def control_type_others(self, tree):
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return {
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"__control_type__": "others",
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"suspend": "ScriptOpcode_SUSPEND_OTHERS",
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"resume": "ScriptOpcode_RESUME_OTHERS",
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}
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def control_type_script(self, tree):
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return {
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"__control_type__": "script",
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"suspend": "ScriptOpcode_SUSPEND_SCRIPT",
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"resume": "ScriptOpcode_RESUME_SCRIPT",
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"kill": "ScriptOpcode_KILL_SCRIPT",
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}
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def sleep_stmt(self, tree):
|
|
return Cmd("ScriptOpcode_SLEEP_FRAMES", tree.children[0], meta=tree.meta)
|
|
def sleep_secs_stmt(self, tree):
|
|
return Cmd("ScriptOpcode_SLEEP_SECS", tree.children[0], meta=tree.meta)
|
|
|
|
def bind_stmt(self, tree):
|
|
script, trigger, target = tree.children
|
|
return Cmd("ScriptOpcode_BIND_TRIGGER", script, trigger, target, 1, 0, meta=tree.meta)
|
|
def bind_set_stmt(self, tree):
|
|
ret, script, trigger, target = tree.children
|
|
return Cmd("ScriptOpcode_BIND_TRIGGER", script, trigger, target, 1, ret, meta=tree.meta)
|
|
def unbind_stmt(self, tree):
|
|
return Cmd("ScriptOpcode_UNBIND", meta=tree.meta)
|
|
|
|
def spawn_stmt(self, tree):
|
|
return Cmd("ScriptOpcode_SPAWN_SCRIPT", tree.children[0], meta=tree.meta)
|
|
def spawn_set_stmt(self, tree):
|
|
lhs, script = tree.children
|
|
return Cmd("ScriptOpcode_SPAWN_SCRIPT_GET_ID", script, lhs, meta=tree.meta)
|
|
def await_stmt(self, tree):
|
|
return Cmd("ScriptOpcode_AWAIT_SCRIPT", tree.children[0], meta=tree.meta)
|
|
|
|
def set_stmt(self, tree):
|
|
lhs, opcodes, rhs = tree.children
|
|
if is_fixed_var(rhs):
|
|
opcode = opcodes.get("float", None)
|
|
if not opcode:
|
|
raise CompileError(f"float operation `{opcodes['__op__']}' not supported", tree.meta)
|
|
else:
|
|
opcode = opcodes.get("int", None)
|
|
if not opcode:
|
|
raise CompileError(f"int operation `{opcodes['__op__']}' not supported", tree.meta)
|
|
return Cmd(opcode, lhs, rhs)
|
|
def set_float_stmt(self, tree):
|
|
lhs, opcodes, rhs = tree.children
|
|
opcode = opcodes.get("float", None)
|
|
if not opcode:
|
|
raise CompileError(f"float operation `{opcodes['__op__']}' not supported", tree.meta)
|
|
return Cmd(opcode, lhs, rhs)
|
|
def set_const_stmt(self, tree):
|
|
lhs, opcodes, rhs = tree.children
|
|
opcode = opcodes.get("const", None)
|
|
if not opcode:
|
|
raise CompileError(f"const operation `{opcodes['__op__']}' not supported", tree.meta)
|
|
return Cmd(opcode, lhs, rhs)
|
|
def set_op_eq(self, tree):
|
|
return {
|
|
"__op__": "=",
|
|
"int": "ScriptOpcode_SET",
|
|
"const": "ScriptOpcode_SET_CONST",
|
|
"float": "ScriptOpcode_SET_F",
|
|
}
|
|
def set_op_add(self, tree):
|
|
return {
|
|
"__op__": "+",
|
|
"int": "ScriptOpcode_ADD",
|
|
"float": "ScriptOpcode_ADD_F",
|
|
}
|
|
def set_op_sub(self, tree):
|
|
return {
|
|
"__op__": "-",
|
|
"int": "ScriptOpcode_SUB",
|
|
"float": "ScriptOpcode_SUB_F",
|
|
}
|
|
def set_op_mul(self, tree):
|
|
return {
|
|
"__op__": "*",
|
|
"int": "ScriptOpcode_MUL",
|
|
"float": "ScriptOpcode_MUL_F",
|
|
}
|
|
def set_op_div(self, tree):
|
|
return {
|
|
"__op__": "/",
|
|
"int": "ScriptOpcode_DIV",
|
|
"float": "ScriptOpcode_DIV_F",
|
|
}
|
|
def set_op_mod(self, tree):
|
|
return {
|
|
"__op__": "%",
|
|
"int": "ScriptOpcode_MOD",
|
|
}
|
|
def set_op_and(self, tree):
|
|
return {
|
|
"__op__": "&",
|
|
"int": "ScriptOpcode_AND",
|
|
"const": "ScriptOpcode_AND_CONST",
|
|
}
|
|
def set_op_or(self, tree):
|
|
return {
|
|
"__op__": "|",
|
|
"int": "ScriptOpcode_OR",
|
|
"const": "ScriptOpcode_OR_CONST",
|
|
}
|
|
|
|
def variable(self, tree):
|
|
name = tree.children[0]
|
|
return self.alloc.variables.index(name) - 30000000
|
|
|
|
def label_decl(self, tree):
|
|
if len(tree.children) == 1:
|
|
label = tree.children[0]
|
|
return Cmd("ScriptOpcode_LABEL", label, meta=tree.meta)
|
|
else:
|
|
label, cmd_or_block = tree.children
|
|
|
|
if type(cmd_or_block) is not list:
|
|
cmd_or_block = [cmd_or_block]
|
|
|
|
for cmd in cmd_or_block:
|
|
if isinstance(cmd, BaseCmd):
|
|
cmd.add_context(LabelCtx(label))
|
|
|
|
return [
|
|
Cmd("ScriptOpcode_LABEL", label, meta=tree.meta),
|
|
*cmd_or_block
|
|
]
|
|
def label_goto(self, tree):
|
|
label = tree.children[0]
|
|
return Cmd("ScriptOpcode_GOTO", label, meta=tree.meta)
|
|
def label(self, tree):
|
|
name = tree.children[0]
|
|
if name in self.alloc.labels:
|
|
return self.alloc.labels.index(name)
|
|
raise CompileError(f"label `{name}' is undeclared", tree.meta)
|
|
|
|
def block_stmt(self, tree):
|
|
block, = tree.children
|
|
for cmd in block:
|
|
if isinstance(cmd, BaseCmd):
|
|
cmd.add_context(BlockCtx())
|
|
return block
|
|
def spawn_block_stmt(self, tree):
|
|
block, = tree.children
|
|
for cmd in block:
|
|
if isinstance(cmd, BaseCmd):
|
|
cmd.add_context(SpawnCtx())
|
|
return [ Cmd("ScriptOpcode_SPAWN_THREAD", meta=tree.meta), *block, Cmd("ScriptOpcode_END_SPAWN_THREAD") ]
|
|
def parallel_block_stmt(self, tree):
|
|
block, = tree.children
|
|
for cmd in block:
|
|
if isinstance(cmd, BaseCmd):
|
|
cmd.add_context(ParallelCtx())
|
|
return [ Cmd("ScriptOpcode_PARALLEL_THREAD", meta=tree.meta), *block, Cmd("ScriptOpcode_END_PARALLEL_THREAD") ]
|
|
|
|
def compile_script(s):
|
|
tree = script_parser.parse(s)
|
|
|
|
#eprint(tree.pretty())
|
|
|
|
commands = Compile().transform(tree)
|
|
|
|
# add RETURN END if no explicit END (top-level `break') was given
|
|
if next((cmd for cmd in commands if cmd.opcode() == "ScriptOpcode_END"), None) == None:
|
|
commands += (Cmd("ScriptOpcode_RETURN"), Cmd("ScriptOpcode_END"))
|
|
|
|
return commands
|
|
|
|
def read_until_closing_paren(depth=1, lex_strings=False):
|
|
text = ""
|
|
|
|
in_string = False
|
|
string_escape = False
|
|
|
|
while True:
|
|
char = stdin.read(1)
|
|
|
|
if len(char) == 0:
|
|
# EOF
|
|
return text
|
|
|
|
if string_escape == True:
|
|
string_escape = False
|
|
elif char == "(" and not in_string:
|
|
depth += 1
|
|
elif char == ")" and not in_string:
|
|
depth -= 1
|
|
if depth == 0:
|
|
break
|
|
elif char == '"' and lex_strings:
|
|
in_string = not in_string
|
|
elif char == "\\" and in_string:
|
|
string_escape = True
|
|
|
|
text += char
|
|
|
|
return text
|
|
|
|
def read_line():
|
|
line = ""
|
|
|
|
while True:
|
|
char = stdin.read(1)
|
|
|
|
if len(char) == 0:
|
|
# EOF
|
|
return line
|
|
|
|
if char == "\n":
|
|
break
|
|
|
|
line += char
|
|
|
|
return line
|
|
|
|
def gen_line_map(source, source_line_no = 1):
|
|
line_map = {}
|
|
output = ""
|
|
|
|
output_line_no = 1
|
|
|
|
for line in source.splitlines(True):
|
|
if line[0] == "#":
|
|
parts = line[2:-1].split(" ")
|
|
source_line_no = int(parts[0])
|
|
else:
|
|
line_map[output_line_no] = source_line_no
|
|
output += line
|
|
output_line_no += 1
|
|
source_line_no += 1
|
|
|
|
return output, line_map
|
|
|
|
# Expects output from C preprocessor on argv
|
|
if __name__ == "__main__":
|
|
if DEBUG_OUTPUT is not None:
|
|
DEBUG_OUTPUT = open(DEBUG_OUTPUT, "w")
|
|
|
|
line_no = 1
|
|
char_no = 1
|
|
file_info = []
|
|
error = False
|
|
|
|
macro_name = "" # captures recent UPPER_CASE identifier
|
|
prev_char = ""
|
|
while not error:
|
|
char = stdin.read(1)
|
|
|
|
if len(char) == 0:
|
|
# EOF
|
|
write(macro_name)
|
|
break
|
|
|
|
if char == "#" and (prev_char == "\n" or prev_char == ""):
|
|
# cpp line/file marker
|
|
line = read_line()
|
|
line_split = line[1:].split(" ")
|
|
|
|
line_no = int(line_split[0])
|
|
file_info = line_split[1:]
|
|
|
|
write("#" + line + "\n")
|
|
elif char == "(":
|
|
filename = file_info[0][1:-1]
|
|
|
|
# SCRIPT(...)
|
|
if macro_name == "SCRIPT":
|
|
script_source, line_map = gen_line_map(read_until_closing_paren(lex_strings=True), source_line_no=line_no)
|
|
|
|
try:
|
|
commands = compile_script(script_source)
|
|
|
|
write("{\n")
|
|
for command in commands:
|
|
if command.meta:
|
|
write(f"# {line_map[command.meta.line]} {file_info[0]}\n")
|
|
write(" ")
|
|
for word in command.to_bytecode():
|
|
if type(word) == str:
|
|
write(word)
|
|
elif type(word) == int:
|
|
write(f"0x{word & 0xFFFFFFFF:X}")
|
|
else:
|
|
raise Exception(f"{command}.to_bytecode() gave {type(word)} {word}")
|
|
write(", ")
|
|
write("\n")
|
|
write("}")
|
|
except exceptions.UnexpectedEOF as e:
|
|
eprint(f"{filename}:{line_no}: {ANSI_RED}error{ANSI_RESET}: unterminated SCRIPT(...) macro")
|
|
error = True
|
|
except exceptions.UnexpectedCharacters as e:
|
|
line = line_map[e.line]
|
|
char = script_source[e.pos_in_stream]
|
|
allowed = e.allowed
|
|
|
|
eprint(f"{filename}:{line}: {ANSI_RED}script parse error{ANSI_RESET}: unexpected `{char}', expected {' or '.join(allowed)}")
|
|
eprint(e.get_context(script_source))
|
|
|
|
error = True
|
|
except exceptions.UnexpectedToken as e:
|
|
line = line_map[e.line]
|
|
|
|
eprint(f"{filename}:{line}: {ANSI_RED}script parse error{ANSI_RESET}: unexpected `{e.token}'")
|
|
eprint(e.get_context(script_source))
|
|
|
|
error = True
|
|
except exceptions.VisitError as e:
|
|
if type(e.orig_exc) == CompileError:
|
|
line = line_map[e.orig_exc.meta.line]
|
|
eprint(f"{filename}:{line}: {ANSI_RED}script compile error{ANSI_RESET}: {e.orig_exc}")
|
|
else:
|
|
eprint(f"{filename}:{line_no}: {ANSI_RED}internal script transform error{ANSI_RESET}")
|
|
traceback.print_exc()
|
|
error = True
|
|
except CompileError as e:
|
|
line = line_map[e.meta.line]
|
|
eprint(f"{filename}:{line}: {ANSI_RED}script compile error{ANSI_RESET}: {e}")
|
|
error = True
|
|
except Exception as e:
|
|
eprint(f"{filename}:{line_no}: {ANSI_RED}internal script compilation error{ANSI_RESET}")
|
|
traceback.print_exc()
|
|
error = True
|
|
|
|
line_no += script_source.count("\n")
|
|
write(f"\n# {line_no} {file_info[0]}\n")
|
|
else:
|
|
# leave non-macro in source
|
|
write(macro_name + char)
|
|
|
|
macro_name = ""
|
|
elif char == "_" or (char >= 'A' and char <= 'Z'):
|
|
macro_name += char
|
|
else:
|
|
write(macro_name + char)
|
|
macro_name = ""
|
|
|
|
if char == "\n":
|
|
char_no = 0
|
|
line_no += 1
|
|
|
|
char_no += 1
|
|
prev_char = char
|
|
|
|
if error:
|
|
write("{ 1 / 0 };")
|
|
exit(1)
|
|
else:
|
|
exit(0)
|