Files
carbon-lang/executable_semantics/interpreter/exec_program.cpp
T
Jon Meow 70797e8bf8 Mass rename SourceLoc and Tag (#860)
This does a mass rename of:

-   `SourceLoc()` -> `source_loc()` for property naming
    - `loc` -> `source_loc_` for underscore+consistency
    - Generally changing function args to `source_loc` for consistency
-   `Tag()` -> `kind()` for property naming and `Kind` parity
    - `tag` -> `kind_` for underscore

Also renames `Pos` and `Results` on `Action`. These are a bit of an exception in that most base classes only have `Tag` and maybe `SourceLoc`, whereas `Action` has a little more. I felt okay having `source_loc()` and `kind()` on the base class where children do `Exp()` and the like, but it felt weird to me to mix it on the same class.

The reason for doing this cross-class in one PR is so that I can do it efficiently with a global replace in the codebase, rather than e.g. changing `Expression` but having to read through compiler errors to determine where it's calling `Expression`'s `Tag` versus a different `Tag`. The end result should be equivalent.
2021-09-29 16:52:12 -07:00

74 lines
3.0 KiB
C++

// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "executable_semantics/interpreter/exec_program.h"
#include "common/check.h"
#include "common/ostream.h"
#include "executable_semantics/common/arena.h"
#include "executable_semantics/common/tracing_flag.h"
#include "executable_semantics/interpreter/interpreter.h"
#include "executable_semantics/interpreter/type_checker.h"
namespace Carbon {
// Adds builtins, currently only Print(). Note Print() is experimental, not
// standardized, but is made available for printing state in tests.
static void AddIntrinsics(Nonnull<Arena*> arena,
std::vector<Nonnull<Declaration*>>* declarations) {
SourceLocation source_loc("<intrinsic>", 0);
std::vector<TuplePattern::Field> print_fields = {TuplePattern::Field(
"0", arena->New<BindingPattern>(
source_loc, "format_str",
arena->New<ExpressionPattern>(
arena->New<StringTypeLiteral>(source_loc))))};
auto print_return =
arena->New<Return>(source_loc,
arena->New<IntrinsicExpression>(
IntrinsicExpression::IntrinsicKind::Print),
false);
auto print = arena->New<FunctionDeclaration>(arena->New<FunctionDefinition>(
source_loc, "Print", std::vector<GenericBinding>(),
arena->New<TuplePattern>(source_loc, print_fields),
arena->New<ExpressionPattern>(arena->New<TupleLiteral>(source_loc)),
/*is_omitted_return_type=*/false, print_return));
declarations->insert(declarations->begin(), print);
}
void ExecProgram(Nonnull<Arena*> arena, AST ast) {
AddIntrinsics(arena, &ast.declarations);
if (tracing_output) {
llvm::outs() << "********** source program **********\n";
for (const auto decl : ast.declarations) {
llvm::outs() << *decl;
}
llvm::outs() << "********** type checking **********\n";
}
TypeChecker type_checker(arena);
TypeChecker::TypeCheckContext p = type_checker.TopLevel(&ast.declarations);
TypeEnv top = p.types;
Env ct_top = p.values;
std::vector<Nonnull<const Declaration*>> new_decls;
for (const auto decl : ast.declarations) {
new_decls.push_back(type_checker.MakeTypeChecked(decl, top, ct_top));
}
if (tracing_output) {
llvm::outs() << "\n";
llvm::outs() << "********** type checking complete **********\n";
for (const auto decl : new_decls) {
llvm::outs() << *decl;
}
llvm::outs() << "********** starting execution **********\n";
}
SourceLocation source_loc("<main()>", 0);
Nonnull<Expression*> call_main = arena->New<CallExpression>(
source_loc, arena->New<IdentifierExpression>(source_loc, "main"),
arena->New<TupleLiteral>(source_loc));
int result = Interpreter(arena).InterpProgram(new_decls, call_main);
llvm::outs() << "result: " << result << "\n";
}
} // namespace Carbon