コード例 #1
0
ファイル: build_ast.py プロジェクト: nibau/zkay
 def visitAssignmentExpr(self, ctx: SolidityParser.AssignmentExprContext):
     if not self.is_expr_stmt(ctx):
         raise SyntaxException('Assignments are only allowed as statements', ctx, self.code)
     lhs = self.visit(ctx.lhs)
     rhs = self.visit(ctx.rhs)
     assert ctx.op.text[-1] == '='
     op = ctx.op.text[:-1] if ctx.op.text != '=' else ''
     if op:
         # If the assignment contains an additional operator -> replace lhs = rhs with lhs = lhs 'op' rhs
         rhs = FunctionCallExpr(BuiltinFunction(op).override(line=ctx.op.line, column=ctx.op.column), [self.visit(ctx.lhs), rhs])
         rhs.line = ctx.rhs.start.line
         rhs.column = ctx.rhs.start.column + 1
     return ast.AssignmentStatement(lhs, rhs, op)
コード例 #2
0
ファイル: build_ast.py プロジェクト: nibau/zkay
    def _handle_crement_expr(self, ctx, kind: str):
        if not self.is_expr_stmt(ctx):
            raise SyntaxException(f'{kind}-crement expressions are only allowed as statements', ctx, self.code)
        op = '+' if ctx.op.text == '++' else '-'

        one = NumberLiteralExpr(1)
        one.line = ctx.op.line
        one.column = ctx.op.column + 1

        fct = FunctionCallExpr(BuiltinFunction(op).override(line=ctx.op.line, column=ctx.op.column), [self.visit(ctx.expr), one])
        fct.line = ctx.op.line
        fct.column = ctx.op.column + 1

        return ast.AssignmentStatement(self.visit(ctx.expr), fct, f'{kind}{ctx.op.text}')