mirror of https://github.com/t1meshift/js.git
58 lines
1.4 KiB
Python
58 lines
1.4 KiB
Python
from jasminesnake import __version__
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from antlr4 import *
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from .lex import JavaScriptLexer, JavaScriptParser
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import argparse
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import colorama
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arg_parser = argparse.ArgumentParser(
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description="Jasmine Snake, another JS interpreter in Python",
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epilog="I hope you don't use it, **especially** in production.",
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)
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arg_parser.add_argument("--snake", action="store_true", help="Print a snake")
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args = arg_parser.parse_args()
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JSL = JavaScriptLexer.JavaScriptLexer
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JSP = JavaScriptParser.JavaScriptParser
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class WriteTreeListener(ParseTreeListener):
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def visitTerminal(self, node: TerminalNode):
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print("Visit Terminal: " + str(node) + " - " + repr(node))
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def main():
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colorama.init()
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print("Jasmine Snake v{version}".format(version=__version__))
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if args.snake:
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print(
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colorama.Style.DIM
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+ "[snake is sleeping now, so you see this stub. pretend you see the snake, please.]"
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)
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print(
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colorama.Fore.BLACK
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+ colorama.Back.YELLOW
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+ "Don't tread on me!"
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+ colorama.Back.RESET
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+ colorama.Fore.RESET
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)
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print()
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input_stream = InputStream('"use strict";var a;\na=2+a;')
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lexer = JSL(input_stream)
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stream = CommonTokenStream(lexer)
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parser = JSP(stream)
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print("Created parsers")
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tree = parser.program()
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ParseTreeWalker.DEFAULT.walk(WriteTreeListener(), tree)
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if __name__ == "__main__":
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main()
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