Merge pull request #792 from mattgodbolt/fixedes6

ES6fication of lib files

1 files changed, 105 insertions, 114 deletions

diff --git a/lib/compilers/pascal.js b/lib/compilers/pascal.js
index 3fa0d3821..9fe60251b 100644
--- a/lib/compilers/pascal.js
+++ b/lib/compilers/pascal.js
@@ -23,66 +23,58 @@
 // POSSIBILITY OF SUCH DAMAGE.
 "use strict";
 
-var Compile = require('../base-compiler'),
+const BaseCompiler = require('../base-compiler'),
     PascalDemangler = require('../pascal-support').demangler,
     utils = require('../utils'),
+    _ = require('underscore-node'),
     fs = require("fs"),
-    path = require("path");
-
-function compileFPC(info, env) {
-    var demangler = new PascalDemangler();
-    var compiler = new Compile(info, env);
-    compiler.compileFilename = "output.pas";
-    compiler.supportsOptOutput = false;
-
-    var originalExecBinary = compiler.execBinary;
-    var currentlyActiveFilters = {};
-
-    compiler.postProcessAsm = function (result) {
+    path = require("path"),
+    argumentParsers = require("./argument-parsers");
+
+class FPCCompiler extends BaseCompiler {
+    constructor(info, env) {
+        super(info, env);
+        this.demangler = new PascalDemangler();
+        this.compileFilename = 'output.pas';
+        this.supportsOptOutput = false;
+    }
+
+    postProcessAsm(result, filters) {
         if (!result.okToCache) return result;
 
-        if (currentlyActiveFilters.binary) {
-            preProcessAsm(result.asm);
+        if (filters.binary) {
+            for (let j = 0; j < result.asm.length; ++j) {
+                this.demangler.addDemangleToCache(result.asm[j].text);
+            }
         }
 
-        for (var j = 0; j < result.asm.length; ++j)
-            result.asm[j].text = demangler.demangleIfNeeded(result.asm[j].text);
+        for (let j = 0; j < result.asm.length; ++j)
+            result.asm[j].text = this.demangler.demangleIfNeeded(result.asm[j].text);
 
         return result;
-    };
+    }
 
-    compiler.optionsForFilter = function (filters, outputFilename, userOptions) {
-        var options = ['-g'];
+    optionsForFilter(filters, outputFilename, userOptions) {
+        let options = ['-g', '-al'];
 
         if (this.compiler.intelAsm && filters.intel && !filters.binary) {
             options = options.concat(this.compiler.intelAsm.split(" "));
         }
 
-        currentlyActiveFilters = filters;
-        filters.preProcessLines = preProcessLines;
+        filters.preProcessLines = _.bind(this.preProcessLines, this);
 
         return options;
-    };
+    }
 
-    compiler.getOutputFilename = function (dirPath, outputFilebase) {
-        return path.join(dirPath, path.basename(this.compileFilename, this.lang.extensions[0]) + ".s");
-    };
+    getOutputFilename(dirPath, outputFilebase) {
+        return path.join(dirPath, `${path.basename(this.compileFilename, this.lang.extensions[0])}.s`);
+    }
 
-    var saveDummyProjectFile = function (filename) {
-        const unitName = path.basename(compiler.compileFilename, compiler.lang.extensions[0]);
-
-        fs.writeFileSync(filename,
-            "program prog; " +
-            "uses " + unitName + " in '" + compiler.compileFilename + "'; " +
-            "begin " +
-            "end.", function() {});
-    };
-
-    var preProcessBinaryAsm = function (input) {
-        var relevantAsmStartsAt = input.indexOf("<OUTPUT");
-        if (relevantAsmStartsAt != -1) {
-            var lastLinefeedBeforeStart = input.lastIndexOf("\n", relevantAsmStartsAt);
-            if (lastLinefeedBeforeStart != -1) {
+    static preProcessBinaryAsm(input) {
+        const relevantAsmStartsAt = input.indexOf("<OUTPUT");
+        if (relevantAsmStartsAt !== -1) {
+            const lastLinefeedBeforeStart = input.lastIndexOf("\n", relevantAsmStartsAt);
+            if (lastLinefeedBeforeStart !== -1) {
                 input =
                     input.substr(0, input.indexOf("00000000004")) + "\n" +
                     input.substr(lastLinefeedBeforeStart + 1);
@@ -92,22 +84,80 @@ function compileFPC(info, env) {
                     input.substr(relevantAsmStartsAt);
             }
         }
-
         return input;
-    };
+    }
+
+    objdump(outputFilename, result, maxSize, intelAsm, demangle) {
+        outputFilename = path.join(path.dirname(outputFilename), "prog");
+        let args = ["-d", outputFilename, "-l", "--insn-width=16"];
+        if (demangle) args = args.concat(["-C"]);
+        if (intelAsm) args = args.concat(["-M", "intel"]);
+        return this.exec(this.compiler.objdumper, args, {maxOutput: maxSize}).then(objResult => {
+            if (objResult.code !== 0) {
+                result.asm = "<No output: objdump returned " + objResult.code + ">";
+            } else {
+                result.asm = FPCCompiler.preProcessBinaryAsm(objResult.stdout);
+            }
+            return result;
+        });
+    }
+
+    saveDummyProjectFile(filename) {
+        const unitName = path.basename(this.compileFilename, this.lang.extensions[0]);
+
+        fs.writeFileSync(filename,
+            "program prog; " +
+            "uses " + unitName + " in '" + this.compileFilename + "'; " +
+            "begin " +
+            "end.", () => {
+            });
+    }
+
+    runCompiler(compiler, options, inputFilename, execOptions) {
+        if (!execOptions) {
+            execOptions = this.getDefaultExecOptions();
+        }
+
+        const tempPath = path.dirname(inputFilename);
+        const projectFile = path.join(tempPath, "prog.dpr");
 
-    var getExtraAsmHint = function (asm) {
+        this.saveDummyProjectFile(projectFile);
+
+        options.pop();
+        options.push('-FE' + tempPath);
+        options.push('-B');
+        options.push(projectFile);
+
+        return this.exec(compiler, options, execOptions).then(result => {
+            result.inputFilename = inputFilename;
+            result.stdout = utils.parseOutput(result.stdout, inputFilename);
+            result.stderr = utils.parseOutput(result.stderr, inputFilename);
+            return result;
+        });
+    }
+
+    execBinary(executable, result, maxSize) {
+        executable = path.join(path.dirname(executable), "prog");
+
+        super.execBinary(executable, result, maxSize);
+    }
+
+    getArgumentParser() {
+        return argumentParsers.Base;
+    }
+
+    getExtraAsmHint(asm) {
         if (asm.startsWith("# [")) {
-            var bracketEndPos = asm.indexOf("]", 3);
-            var valueInBrackets = asm.substr(3, bracketEndPos - 3);
-            var colonPos = valueInBrackets.indexOf(":");
+            const bracketEndPos = asm.indexOf("]", 3);
+            let valueInBrackets = asm.substr(3, bracketEndPos - 3);
+            const colonPos = valueInBrackets.indexOf(":");
             if (colonPos != -1) {
                 valueInBrackets = valueInBrackets.substr(0, colonPos - 1);
             }
 
             if (!isNaN(valueInBrackets)) {
                 return "  .loc 1 " + valueInBrackets + " 0";
-            } else if (valueInBrackets.includes(compiler.compileFilename)) {
+            } else if (valueInBrackets.includes(this.compileFilename)) {
                 return "  .file 1 \"<stdin>\"";
             } else {
                 return false;
@@ -117,84 +167,25 @@ function compileFPC(info, env) {
         } else {
             return false;
         }
-    };
+    }
 
-    var preProcessLines = function(asmLines) {
-        var i = 0;
+    preProcessLines(asmLines) {
+        let i = 0;
 
         while (i < asmLines.length) {
-            var extraHint = getExtraAsmHint(asmLines[i]);
+            const extraHint = this.getExtraAsmHint(asmLines[i]);
             if (extraHint) {
                 i++;
                 asmLines.splice(i, 0, extraHint);
             } else {
-                demangler.addDemangleToCache(asmLines[i]);
+                this.demangler.addDemangleToCache(asmLines[i]);
             }
 
             i++;
         }
 
         return asmLines;
-    };
-
-    var preProcessAsm = function(asm) {
-        for (var j = 0; j < asm.length; ++j) demangler.addDemangleToCache(asm[j].text);
-    };
-
-    compiler.objdump = function (outputFilename, result, maxSize, intelAsm, demangle) {
-         outputFilename = path.join(path.dirname(outputFilename), "prog");
-
-         var args = ["-d", outputFilename, "-l", "--insn-width=16"];
-         if (demangle) args = args.concat(["-C"]);
-         if (intelAsm) args = args.concat(["-M", "intel"]);
-         return this.exec(this.compiler.objdumper, args, {maxOutput: maxSize})
-            .then(function (objResult) {
-                if (objResult.code !== 0) {
-                    result.asm = "<No output: objdump returned " + objResult.code + ">";
-                } else {
-                    result.asm = preProcessBinaryAsm(objResult.stdout);
-                }
-
-                return result;
-            });
-    };
-
-    compiler.runCompiler = function (compiler, options, inputFilename, execOptions) {
-        if (!execOptions) {
-            execOptions = this.getDefaultExecOptions();
-        }
-
-        var tempPath = path.dirname(inputFilename);
-        var projectFile = path.join(tempPath, "prog.dpr");
-
-        saveDummyProjectFile(projectFile);
-
-        options.pop();
-        options.push('-FE' + tempPath);
-        options.push('-B');
-        options.push(projectFile);
-
-        return this.exec(compiler, options, execOptions).then(function (result) {
-            result.inputFilename = inputFilename;
-            result.stdout = utils.parseOutput(result.stdout, inputFilename);
-            result.stderr = utils.parseOutput(result.stderr, inputFilename);
-            return result;
-        });
-    };
-
-    compiler.execBinary = function (executable, result, maxSize) {
-        executable = path.join(path.dirname(executable), "prog");
-
-        originalExecBinary(executable, result, maxSize);
-    };
-
-    compiler.getArgumentParser = () => (compiler) => compiler;
-
-    if (info.unitTestMode) {
-        compiler.initialise();
-        return compiler;
-    } else
-        return compiler.initialise();
+    }
 }
 
-module.exports = compileFPC;
+module.exports = FPCCompiler;