mirror of
https://github.com/carbon-language/carbon-lang.git
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Richard SmithandJon Ross-Perkins
ea60e4f491
This will be more correct if a user file is named prelude.carbon, and reduces the explorer runtime by about 10% by removing a string comparison from the check for whether trace output is enabled. --------- Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include "explorer/interpreter/exec_program.h"
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#include <variant>
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#include "common/check.h"
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#include "common/error.h"
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#include "common/ostream.h"
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#include "explorer/common/arena.h"
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#include "explorer/common/trace_stream.h"
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#include "explorer/interpreter/interpreter.h"
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#include "explorer/interpreter/resolve_control_flow.h"
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#include "explorer/interpreter/resolve_names.h"
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#include "explorer/interpreter/resolve_unformed.h"
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#include "explorer/interpreter/type_checker.h"
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#include "llvm/Support/Error.h"
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namespace Carbon {
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auto AnalyzeProgram(Nonnull<Arena*> arena, AST ast,
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Nonnull<TraceStream*> trace_stream,
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Nonnull<llvm::raw_ostream*> print_stream) -> ErrorOr<AST> {
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SetProgramPhase set_prog_phase(*trace_stream, ProgramPhase::SourceProgram);
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SetFileContext set_file_ctx(*trace_stream, std::nullopt);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** source program **********\n";
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for (int i = ast.num_prelude_declarations;
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i < static_cast<int>(ast.declarations.size()); ++i) {
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*trace_stream << *ast.declarations[i];
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}
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}
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SourceLocation source_loc("<Main()>", 0, FileKind::Main);
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ast.main_call = arena->New<CallExpression>(
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source_loc, arena->New<IdentifierExpression>(source_loc, "Main"),
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arena->New<TupleLiteral>(source_loc));
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// Although name resolution is currently done once, generic programming
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// (particularly templates) may require more passes.
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set_prog_phase.update_phase(ProgramPhase::NameResolution);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** resolving names **********\n";
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}
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CARBON_RETURN_IF_ERROR(ResolveNames(ast));
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set_prog_phase.update_phase(ProgramPhase::ControlFlowResolution);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** resolving control flow **********\n";
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}
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CARBON_RETURN_IF_ERROR(ResolveControlFlow(ast));
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set_prog_phase.update_phase(ProgramPhase::TypeChecking);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** type checking **********\n";
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}
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CARBON_RETURN_IF_ERROR(
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TypeChecker(arena, trace_stream, print_stream).TypeCheck(ast));
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set_prog_phase.update_phase(ProgramPhase::UnformedVariableResolution);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** resolving unformed variables **********\n";
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}
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CARBON_RETURN_IF_ERROR(ResolveUnformed(ast));
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set_prog_phase.update_phase(ProgramPhase::Declarations);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** printing declarations **********\n";
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for (auto& declaration : ast.declarations) {
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set_file_ctx.update_source_loc(declaration->source_loc());
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if (trace_stream->is_enabled()) {
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*trace_stream << *declaration;
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}
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}
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}
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return ast;
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}
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auto ExecProgram(Nonnull<Arena*> arena, AST ast,
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Nonnull<TraceStream*> trace_stream,
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Nonnull<llvm::raw_ostream*> print_stream) -> ErrorOr<int> {
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SetProgramPhase set_program_phase(*trace_stream, ProgramPhase::Execution);
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if (trace_stream->is_enabled()) {
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*trace_stream << "********** starting execution **********\n";
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}
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CARBON_ASSIGN_OR_RETURN(
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auto interpreter_result,
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InterpProgram(ast, arena, trace_stream, print_stream));
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if (trace_stream->is_enabled()) {
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*trace_stream << "interpreter result: " << interpreter_result << "\n";
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}
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return interpreter_result;
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}
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} // namespace Carbon
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