Add support for Solidity (#3507)gh-2350

* feat(compilers): Solidity support MVP

* don't concat userOptions in optionsForFilter

* fixes after review

* Update etc/config/solidity.defaults.properties

Co-authored-by: Rubén Rincón Blanco <ruben@rinconblanco.es>

Co-authored-by: Rubén Rincón Blanco <ruben@rinconblanco.es>

1 files changed, 97 insertions, 0 deletions

diff --git a/lib/compilers/solidity.js b/lib/compilers/solidity.js
new file mode 100644
index 000000000..6053de4ce
--- /dev/null
+++ b/lib/compilers/solidity.js
@@ -0,0 +1,97 @@
+// Copyright (c) 2022, Compiler Explorer Authors
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//     * Redistributions of source code must retain the above copyright notice,
+//       this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in the
+//       documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+import path from 'path';
+
+import _ from 'underscore';
+
+import { BaseCompiler } from '../base-compiler';
+
+import { ClangParser } from './argument-parsers';
+
+export class SolidityCompiler extends BaseCompiler {
+    static get key() { return 'solidity'; }
+
+    getSharedLibraryPathsAsArguments() {
+        return [];
+    }
+
+    getArgumentParser() {
+        return ClangParser;
+    }
+
+    optionsForFilter(filters, outputFilename, userOptions) {
+        return [
+            '--combined-json', 'asm', // We use it instead of `--asm-json` to have compacted json
+            '-o', 'contracts',
+        ];
+    }
+
+    isCfgCompiler(/*compilerVersion*/) {
+        return false;
+    }
+
+    getOutputFilename(dirPath) {
+        return path.join(dirPath, 'contracts/combined.json');
+    }
+
+    processAsm(result) {
+        // Handle "error" documents.
+        if (!result.asm.includes('\n') && result.asm[0] === '<') {
+            return {asm: [{text: result.asm}]};
+        }
+
+        return {
+            asm: Object.entries(JSON.parse(result.asm).contracts)
+                .sort(([_name1, data1], [_name2, data2]) =>
+                    data1.asm['.code'][0].begin - data2.asm['.code'][0].begin,
+                )
+                .map(([name, data]) => {
+                    const processOpcodes = (opcodes, indent) => opcodes
+                        .map(opcode =>
+                            `${opcode.name}${opcode.value !== undefined ? ` ${opcode.value}` : ''}`,
+                        )
+                        .map(opcode =>
+                            (indent || '') + (opcode.startsWith('tag') ? opcode : `\t${opcode}`),
+                        );
+
+                    return [
+                        `// ${_.last(name.split(':'))}`,
+                        '.code',
+                        processOpcodes(data.asm['.code']),
+                        '.data',
+                        Object.entries(data.asm['.data']).map(([id, {'.code': code}]) => [
+                            `\t${id}:`,
+                            '\t\t.code',
+                            processOpcodes(code, '\t\t'),
+                        ]),
+                        '\n',
+                    ];
+                })
+                .flat(Infinity)
+                .slice(0, -1)
+                .map(line => ({text: line})),
+        };
+    }
+}