mirror of https://github.com/tbklang/tlang.git
526 lines
15 KiB
D
526 lines
15 KiB
D
module tlang.compiler.core;
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import gogga;
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import std.conv : to;
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import tlang.compiler.lexer.core;
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import tlang.compiler.lexer.kinds.basic : BasicLexer;
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import std.stdio : File;
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import tlang.compiler.parsing.core;
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import tlang.compiler.symbols.check;
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import tlang.compiler.symbols.data;
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import tlang.compiler.typecheck.core;
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import tlang.compiler.typecheck.exceptions;
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import core.stdc.stdlib;
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import tlang.compiler.codegen.emit.core;
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import tlang.compiler.codegen.emit.dgen;
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import misc.exceptions;
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import tlang.compiler.codegen.mapper.core : SymbolMapper;
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import tlang.compiler.codegen.mapper.hashmapper : HashMapper;
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import tlang.compiler.codegen.mapper.lebanese : LebaneseMapper;
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import std.string : cmp;
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import tlang.compiler.configuration : CompilerConfiguration, ConfigEntry;
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// TODO: Add configentry unittests
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/**
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* The sub-error type of `CompilerException`
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*/
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public enum CompilerError
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{
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/**
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* Occurs when tokens are requested but
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* the tokenization process has not yet
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* occurred
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*/
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LEX_NOT_PERFORMED,
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/**
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* Occurs if the tokenization process resulted
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* in zero tokens being produced
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*/
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NO_TOKENS,
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/**
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* Occurs if typechecking is performed
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* but no module was produced due to
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* parsing not yet being performed
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*/
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PARSE_NOT_YET_PERFORMED,
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/**
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* Occurs if emit was called but no
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* code queue wa sproduced due to
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* typechecking not being performed
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* yet
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*/
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TYPECHECK_NOT_YET_PERFORMED,
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/**
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* Occurs on a configuration error
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*/
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CONFIG_ERROR,
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/**
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* Occurs if a configuration key cannot
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* be found
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*/
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CONFIG_KEY_NOT_FOUND,
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/**
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* Occurs when the type of the configuration
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* key requested does not match its actual type
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*/
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CONFIG_TYPE_ERROR,
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/**
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* Occurs when a duplicate configuration key
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* entry is attempted to be created
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*/
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CONFIG_DUPLICATE_ENTRY
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}
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public final class CompilerException : TError
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{
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private CompilerError errType;
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this(CompilerError errType, string msg = "")
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{
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super("CompilerError("~to!(string)(errType)~")"~(msg.length ? ": "~msg : ""));
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this.errType = errType;
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}
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}
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public class Compiler
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{
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/* The input source code */
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private string inputSource;
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/* The lexer */
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private LexerInterface lexer;
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/* The lexed tokens */
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private Token[] tokens;
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/* The parser */
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private Parser parser;
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private Module modulle;
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/* The typechecker/code generator */
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private TypeChecker typeChecker;
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/* The chosen code emitter to use */
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private CodeEmitter emitter;
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private File emitOutFile;
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/* The configuration */
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private CompilerConfiguration config;
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public CompilerConfiguration getConfig()
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{
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return config;
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}
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/**
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* Create a new compiler instance to compile the given
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* source code
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* Params:
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* sourceCode = the source code to compile
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*/
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this(string sourceCode, File emitOutFile)
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{
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this.inputSource = sourceCode;
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this.emitOutFile = emitOutFile;
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/* Get the default config */
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this.config = CompilerConfiguration.defaultConfig();
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}
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/* Setup the lexer and begin lexing */
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public void doLex()
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{
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/* Setup the lexer and begin lexing */
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this.lexer = new BasicLexer(inputSource);
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(cast(BasicLexer)(this.lexer)).performLex();
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this.tokens = this.lexer.getTokens();
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}
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public Token[] getTokens()
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{
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if(this.lexer is null)
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{
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throw new CompilerException(CompilerError.LEX_NOT_PERFORMED);
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}
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return tokens;
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}
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/* Spawn a new parser with the provided tokens */
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public void doParse()
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{
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Token[] lexedTokens = getTokens();
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if(lexedTokens.length == 0)
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{
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throw new CompilerException(CompilerError.NO_TOKENS);
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}
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else
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{
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/* Spawn a new parser with the provided tokens */
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this.parser = new Parser(lexer);
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modulle = parser.parse();
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}
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}
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public Module getModule()
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{
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return modulle;
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}
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/**
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* Spawn a new typechecker/codegenerator on the module
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* and perform type checking and code generation
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*/
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public void doTypeCheck()
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{
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if(this.parser is null)
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{
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throw new CompilerException(CompilerError.PARSE_NOT_YET_PERFORMED);
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}
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this.typeChecker = new TypeChecker(modulle, config);
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/* Perform typechecking/codegen */
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this.typeChecker.beginCheck();
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}
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/* Perform code emitting */
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public void doEmit()
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{
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if(typeChecker is null)
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{
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throw new CompilerException(CompilerError.TYPECHECK_NOT_YET_PERFORMED);
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}
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if(!config.hasConfig("dgen:mapper"))
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{
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throw new CompilerException(CompilerError.CONFIG_ERROR, "Missing a symbol mapper");
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}
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SymbolMapper mapper;
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string mapperType = config.getConfig("dgen:mapper").getText();
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if(cmp(mapperType, "hashmapper") == 0)
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{
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mapper = new HashMapper(typeChecker);
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}
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else if(cmp(mapperType, "lebanese") == 0)
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{
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mapper = new LebaneseMapper(typeChecker);
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}
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else
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{
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throw new CompilerException(CompilerError.CONFIG_ERROR, "Invalid mapper type '"~mapperType~"'");
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}
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this.emitter = new DCodeEmitter(typeChecker, emitOutFile, config, mapper);
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emitter.emit(); // Emit the code
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emitOutFile.close(); // Flush (perform the write() syscall)
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emitter.finalize(); // Call CC on the file containing generated C code
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}
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public void compile()
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{
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/* Setup the lexer, perform the tokenization and obtain the tokens */
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doLex();
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/* Setup the parser with the provided tokens and perform parsing */
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doParse();
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/* Spawn a new typechecker/codegenerator on the module and perform type checking */
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doTypeCheck();
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/* Perform code emitting */
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doEmit();
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}
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}
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/**
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* Opens the source file at the given path, reads the data
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* and returns it
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*
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* Params:
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* sourceFile = the path to the file to open
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* Returns: the source data
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*/
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private string gibFileData(string sourceFile)
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{
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File sourceFileFile;
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sourceFileFile.open(sourceFile); /* TODO: Error handling with ANY file I/O */
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ulong fileSize = sourceFileFile.size();
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byte[] fileBytes;
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fileBytes.length = fileSize;
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fileBytes = sourceFileFile.rawRead(fileBytes);
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sourceFileFile.close();
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return cast(string)fileBytes;
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}
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/**
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* Performs compilation of the provided module(s)
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*
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* Params:
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* sourceFiles = The module(s) to perform compilation with
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*/
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void beginCompilation(string[] sourceFiles)
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{
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/* TODO: Begin compilation process, take in data here */
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gprintln("Compiling files "~to!(string)(sourceFiles)~" ...");
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foreach(string sourceFile; sourceFiles)
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{
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/* Read in the source code */
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// TODO: THis below code is used so many times, for heavens-sake please make a helper function for it
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gprintln("Reading source file '"~sourceFile~"' ...");
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File sourceFileFile;
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sourceFileFile.open(sourceFile); /* TODO: Error handling with ANY file I/O */
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ulong fileSize = sourceFileFile.size();
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byte[] fileBytes;
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fileBytes.length = fileSize;
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fileBytes = sourceFileFile.rawRead(fileBytes);
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sourceFileFile.close();
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/* The file to output to */
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File outFile;
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outFile.open("tlangout.c", "w");
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/* Create a new compiler */
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Compiler compiler = new Compiler(cast(string)fileBytes, outFile);
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/* Perform the compilation */
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compiler.compile();
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}
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}
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/**
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* Tests the following pipeline:
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*
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* 1. lexing -> parsing -> typecheck/codegen -> emit (DGen)
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*
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* Kinds of tests:
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*
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* 1. Positive tests (must pass)
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*/
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unittest
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{
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// TODO: Ensure up to date with d.yml
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string[] testFiles = [
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"source/tlang/testing/simple_functions.t",
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"source/tlang/testing/simple_direct_func_call.t",
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"source/tlang/testing/simple_function_recursion_factorial.t",
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"source/tlang/testing/simple_conditionals.t",
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"source/tlang/testing/nested_conditionals.t",
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"source/tlang/testing/simple_function_decls.t",
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"source/tlang/testing/simple_variables_only_decs.t",
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"source/tlang/testing/simple_variables_decls_ass.t",
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"source/tlang/testing/simple_while.t",
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"source/tlang/testing/simple_for_loops.t",
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"source/tlang/testing/simple_cast.t",
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"source/tlang/testing/simple_pointer.t",
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"source/tlang/testing/simple_pointer_cast_le.t",
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"source/tlang/testing/simple_stack_arrays4.t",
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"source/tlang/testing/simple_stack_array_coerce.t",
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"source/tlang/testing/simple_stack_array_coerce_ptr_syntax.t",
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"source/tlang/testing/complex_stack_array_coerce.t",
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"source/tlang/testing/complex_stack_arrays1.t",
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"source/tlang/testing/simple_arrays.t",
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"source/tlang/testing/simple_arrays2.t",
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"source/tlang/testing/simple_arrays4.t",
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"source/tlang/testing/simple_pointer_array_syntax.t",
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"source/tlang/testing/simple_structs.t",
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"source/tlang/testing/complex_structs.t"
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];
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foreach(string testFile; testFiles)
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{
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beginCompilation([testFile]);
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}
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}
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/**
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* Tests the following pipeline:
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*
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* 1. lexing -> parsing -> typecheck/codegen -> emit (DGen)
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*
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* Kinds of tests:
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*
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* 1. Negative tests (must fail)
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*/
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unittest
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{
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// TODO: Be specific about the catches maybe
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string[] failingTestFiles = [
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"source/tlang/testing/simple_function_return_type_check_bad.t"
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];
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foreach(string testFile; failingTestFiles)
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{
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try
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{
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beginCompilation([testFile]);
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assert(false);
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}
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catch(TError)
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{
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assert(true);
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}
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catch(Exception e)
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{
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assert(false);
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}
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}
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}
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/**
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* Tests the following pipeline:
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*
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* 1. lexing -> parsing -> typecheck/codegen
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*
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* Kinds of tests:
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*
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* 1. Positive tests (must pass)
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* 2. Negative tests (must fail)
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*/
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unittest
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{
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// TODO: Enesure we keep this up-to-date with the d.yml
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string[] testFilesGood = [
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"source/tlang/testing/return/simple_return_expressionless.t",
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"source/tlang/testing/return/simple_return_type.t",
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"source/tlang/testing/typecheck/simple_function_call.t",
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"source/tlang/testing/simple_arrays.t",
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"source/tlang/testing/simple_arrays2.t",
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"source/tlang/testing/simple_arrays4.t",
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"source/tlang/testing/simple_stack_array_coerce.t",
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"source/tlang/testing/complex_stack_arrays1.t",
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"source/tlang/testing/complex_stack_array_coerce_permutation_good.t",
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"source/tlang/testing/simple1_module_positive.t",
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"source/tlang/testing/simple2_name_recognition.t",
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"source/tlang/testing/simple_literals.t",
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"source/tlang/testing/simple_literals3.t",
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"source/tlang/testing/simple_literals5.t",
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"source/tlang/testing/simple_literals6.t",
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"source/tlang/testing/universal_coerce/simple_coerce_literal_good.t",
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"source/tlang/testing/universal_coerce/simple_coerce_literal_good_stdalo.t",
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"source/tlang/testing/simple_function_return_type_check_good.t"
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];
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foreach(string testFileGood; testFilesGood)
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{
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string sourceText = gibFileData(testFileGood);
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try
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{
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File tmpFile;
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tmpFile.open("/tmp/bruh", "wb");
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Compiler compiler = new Compiler(sourceText, tmpFile);
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// Lex
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compiler.doLex();
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// Parse
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compiler.doParse();
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// Dep gen/typecheck/codegen
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compiler.doTypeCheck();
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assert(true);
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}
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// On Error
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catch(TError e)
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{
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assert(false);
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}
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// On Error
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catch(Exception e)
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{
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gprintln("Yo, we should not be getting this but rather ONLY TErrors, this is a bug to be fixed", DebugType.ERROR);
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assert(false);
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}
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}
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// TODO: ENsure we keep this up to date with the d.yml
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string[] testFilesFail = [
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"source/tlang/testing/typecheck/simple_function_call_1.t",
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"source/tlang/testing/simple_stack_array_coerce_wrong.t",
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"source/tlang/testing/complex_stack_array_coerce_bad1.t",
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"source/tlang/testing/complex_stack_array_coerce_bad2.t",
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"source/tlang/testing/complex_stack_array_coerce_bad3.t",
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"source/tlang/testing/collide_container_module1.t",
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"source/tlang/testing/collide_container_module2.t",
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"source/tlang/testing/collide_container_non_module.t",
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"source/tlang/testing/collide_container.t",
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"source/tlang/testing/collide_member.t",
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"source/tlang/testing/precedence_collision_test.t",
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"source/tlang/testing/else_if_without_if.pl",
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"source/tlang/testing/simple_literals2.t",
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"source/tlang/testing/simple_literals4.t",
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"source/tlang/testing/universal_coerce/simple_coerce_literal_bad.t",
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"source/tlang/testing/universal_coerce/simple_coerce_literal_bad_stdalon.t",
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"source/tlang/testing/simple_function_return_type_check_bad.t"
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];
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foreach(string testFileFail; testFilesFail)
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{
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string sourceText = gibFileData(testFileFail);
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try
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{
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File tmpFile;
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tmpFile.open("/tmp/bruh", "wb");
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Compiler compiler = new Compiler(sourceText, tmpFile);
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// Lex
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compiler.doLex();
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// Parse
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compiler.doParse();
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// Dep gen/typecheck/codegen
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compiler.doTypeCheck();
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// All of these checks should be failing
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assert(false);
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}
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// On Error
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catch(TError e)
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{
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assert(true);
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}
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// We should ONLY be getting TErrors
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catch(Exception e)
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{
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gprintln("Got non TError, this is a bug that must be fixed", DebugType.ERROR);
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assert(false);
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}
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}
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} |