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5f589e98fb
Estimated hours taken: 4 Branches: main Various cleanups for the modules in the compiler directory. The are no changes to algorithms except the replacement of some if-then-elses that would naturally be switches with switches and the replacement of most of the calls to error/1. compiler/*.m: Convert calls to error/1 to calls to unexpected/2 or sorry/2 as appropriate throughout most or the compiler. Fix inaccurate assertion failure messages, e.g. identifying the assertion failure as taking place in the wrong module. Add :- end_module declarations. Fix formatting problems and bring the positioning of comments into line with our current coding standards. Fix some overlong lines. Convert some more modules to 4-space indentation. Fix some spots where previous conversions to 4-space indentation have stuffed the formatting of the code up. Fix a bunch of typos in comments. Use state variables in more places; use library predicates from the sv* modules where appropriate. Delete unnecessary and duplicate module imports. Misc. other small cleanups.
191 lines
7.0 KiB
Mathematica
191 lines
7.0 KiB
Mathematica
%-----------------------------------------------------------------------------%
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% vim: ft=mercury ts=4 sw=4 et
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%-----------------------------------------------------------------------------%
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% Copyright (C) 2002-2005 The University of Melbourne.
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% This file may only be copied under the terms of the GNU General
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% Public License - see the file COPYING in the Mercury distribution.
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%-----------------------------------------------------------------------------%
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%
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% File: java_util.m.
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% Main authors: juliensf, mjwybrow.
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%
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% This module defines utility routines that are used by the Java backend.
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% Much of the code below is similar to that in c_util.m; changes made to this
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% module may require changes to c_util.m.
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%
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%-----------------------------------------------------------------------------%
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:- module ml_backend__java_util.
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:- interface.
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:- import_module backend_libs.builtin_ops.
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:- import_module string.
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%-----------------------------------------------------------------------------%
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% Succeeds iff the given string matches a reserved word in Java.
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%
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:- pred java_util__is_keyword(string::in) is semidet.
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%-----------------------------------------------------------------------------%
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%
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% The following predicates all take as input an operator, check if it is an
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% operator of the specified kind, and if so, return the name of the
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% corresponding Java operator that can be used to implement it.
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%
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% The operator returned will be either a prefix operator or function name.
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% The operand needs to be placed in parentheses after the operator name.
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%
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:- pred java_util__unary_prefix_op(unary_op::in, string::out) is det.
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% The operator returned will be <, >, etc.; it can be used in the form:
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% `<string_object>.CompareTo(<Arg1>, <Arg2>) <Op> 0'.
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%
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:- pred java_util__string_compare_op(binary_op::in, string::out) is semidet.
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% The operator returned will be +, *, etc.;
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% the arguments should be floats and the result will be a float.
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%
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:- pred java_util__float_op(binary_op::in, string::out) is semidet.
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% The operator returned will be <, >, etc.;
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% the arguments should be floats and the result will be a boolean.
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%
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:- pred java_util__float_compare_op(binary_op::in, string::out) is semidet.
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% The operator returned will be an infix operator.
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% The arguments should be integer or booleans
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% and the result will be an integer or a boolean.
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%
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:- pred java_util__binary_infix_op(binary_op::in, string::out) is semidet.
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%-----------------------------------------------------------------------------%
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%-----------------------------------------------------------------------------%
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:- implementation.
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:- import_module parse_tree.error_util.
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:- import_module list.
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%-----------------------------------------------------------------------------%
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% Tags are not used in the Java back-end, as such, all of the tagging
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% operators except for `tag' return no-ops. The `tag' case is handled
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% seperately in mlds_to_java__output_std_unop.
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%
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java_util__unary_prefix_op(mktag, "/* mktag */ ").
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java_util__unary_prefix_op(unmktag, "/* unmktag */ ").
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java_util__unary_prefix_op(strip_tag, "/* strip_tag */ ").
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java_util__unary_prefix_op(mkbody, "/* mkbody */ ").
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java_util__unary_prefix_op(unmkbody, "/* unmkbody */ ").
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java_util__unary_prefix_op(hash_string, "mercury.String.hash_1_f_0").
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java_util__unary_prefix_op(bitwise_complement, "~").
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java_util__unary_prefix_op(logical_not, "!").
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java_util__unary_prefix_op(tag, ""). % This case is never used.
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java_util__string_compare_op(str_eq, "==").
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java_util__string_compare_op(str_ne, "!=").
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java_util__string_compare_op(str_le, "<=").
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java_util__string_compare_op(str_ge, ">=").
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java_util__string_compare_op(str_lt, "<").
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java_util__string_compare_op(str_gt, ">").
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java_util__float_compare_op(float_eq, "==").
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java_util__float_compare_op(float_ne, "!=").
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java_util__float_compare_op(float_le, "<=").
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java_util__float_compare_op(float_ge, ">=").
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java_util__float_compare_op(float_lt, "<").
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java_util__float_compare_op(float_gt, ">").
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java_util__float_op(float_plus, "+").
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java_util__float_op(float_minus, "-").
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java_util__float_op(float_times, "*").
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java_util__float_op(float_divide, "/").
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java_util__binary_infix_op(int_add, "+").
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java_util__binary_infix_op(int_sub, "-").
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java_util__binary_infix_op(int_mul, "*").
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java_util__binary_infix_op(int_div, "/").
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java_util__binary_infix_op(int_mod, "%").
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java_util__binary_infix_op(unchecked_left_shift, "<<").
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java_util__binary_infix_op(unchecked_right_shift, ">>").
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java_util__binary_infix_op(bitwise_and, "&").
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java_util__binary_infix_op(bitwise_or, "|").
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java_util__binary_infix_op(bitwise_xor, "^").
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java_util__binary_infix_op(logical_and, "&&").
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java_util__binary_infix_op(logical_or, "||").
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java_util__binary_infix_op(eq, "==").
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java_util__binary_infix_op(ne, "!=").
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java_util__binary_infix_op(int_lt, "<").
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java_util__binary_infix_op(int_gt, ">").
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java_util__binary_infix_op(int_le, "<=").
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java_util__binary_infix_op(int_ge, ">=").
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%-----------------------------------------------------------------------------%
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java_util__is_keyword("abstract").
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java_util__is_keyword("boolean").
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java_util__is_keyword("break").
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java_util__is_keyword("byte").
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java_util__is_keyword("case").
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java_util__is_keyword("catch").
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java_util__is_keyword("char").
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java_util__is_keyword("class").
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java_util__is_keyword("const").
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java_util__is_keyword("continue").
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java_util__is_keyword("default").
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java_util__is_keyword("do").
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java_util__is_keyword("double").
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java_util__is_keyword("else").
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java_util__is_keyword("enum").
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java_util__is_keyword("extends").
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java_util__is_keyword("false").
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java_util__is_keyword("final").
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java_util__is_keyword("finally").
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java_util__is_keyword("float").
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java_util__is_keyword("for").
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java_util__is_keyword("goto").
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java_util__is_keyword("if").
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java_util__is_keyword("implements").
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java_util__is_keyword("import").
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java_util__is_keyword("instanceof").
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java_util__is_keyword("int").
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java_util__is_keyword("interface").
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java_util__is_keyword("long").
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java_util__is_keyword("native").
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java_util__is_keyword("new").
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java_util__is_keyword("null").
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java_util__is_keyword("package").
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java_util__is_keyword("private").
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java_util__is_keyword("protected").
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java_util__is_keyword("public").
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java_util__is_keyword("return").
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java_util__is_keyword("short").
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java_util__is_keyword("static").
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java_util__is_keyword("strictfp").
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java_util__is_keyword("super").
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java_util__is_keyword("switch").
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java_util__is_keyword("synchronized").
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java_util__is_keyword("this").
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java_util__is_keyword("throw").
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java_util__is_keyword("throws").
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java_util__is_keyword("transient").
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java_util__is_keyword("true").
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java_util__is_keyword("try").
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java_util__is_keyword("void").
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java_util__is_keyword("volatile").
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java_util__is_keyword("while").
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%-----------------------------------------------------------------------------%
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:- func this_file = string.
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this_file = "java_util.m".
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%-----------------------------------------------------------------------------%
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:- end_module java_util.
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%-----------------------------------------------------------------------------%
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