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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -2,4 +2,5 @@ export enum Language { | |
| PHP = 'php', | ||
| TYPESCRIPT = 'typescript', | ||
| PYTHON = 'python', | ||
| C = 'c', | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| import { SyntaxNode } from 'tree-sitter'; | ||
| import { CustomParserService } from '../parser-service.interface'; | ||
| import { BaseParserService } from './base-parser.service'; | ||
|
|
||
| enum NodeType { | ||
| FUNCTION_DEFINITION = 'function_definition', | ||
| DECLARATION = 'declaration', | ||
| STRUCT_SPECIFIER = 'struct_specifier', | ||
| FIELD_DECLARATION = 'field_declaration', | ||
| } | ||
|
|
||
| export class CParserService extends BaseParserService implements CustomParserService { | ||
| constructor( | ||
| private readonly rootNode: SyntaxNode, | ||
| private readonly lineNumber: number, | ||
| private readonly nodeTypes: string[], | ||
| ) { | ||
| super(); | ||
| } | ||
|
|
||
| public traverse(node: SyntaxNode): void { | ||
| if (node.startPosition.row === this.lineNumber && this.nodeTypes.includes(node.type) && this.done === false) { | ||
| switch (node.type) { | ||
| case NodeType.FUNCTION_DEFINITION: | ||
| case NodeType.DECLARATION: { | ||
| this.result = { | ||
| name: null, | ||
| parameters: [], | ||
| returnType: null, | ||
| }; | ||
| this.runNodeParser(this.parseFunction, node); | ||
| break; | ||
| } | ||
|
|
||
| case NodeType.STRUCT_SPECIFIER: { | ||
| this.result = { name: null }; | ||
| this.runNodeParser(this.parseStruct, node); | ||
| break; | ||
| } | ||
|
|
||
| case NodeType.FIELD_DECLARATION: { | ||
| this.result = { name: null }; | ||
| this.runNodeParser(this.parseFieldDeclaration, node); | ||
| break; | ||
| } | ||
|
|
||
| default: { | ||
| console.error(`Unable to handle node type: ${node.type}`) | ||
| break; | ||
| } | ||
| } | ||
| } else if (node.childCount > 0) { | ||
| node.children.forEach((childNode: SyntaxNode) => { | ||
| this.traverse(childNode); | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| private parseFunction(node: SyntaxNode): void { | ||
| node.children.forEach((childNode: SyntaxNode) => { | ||
| switch (childNode.type) { | ||
| case 'primitive_type': | ||
| case 'type_identifier': { | ||
| this.result.returnType = childNode.text; | ||
| break; | ||
| } | ||
|
|
||
| case 'function_declarator': { | ||
| this.result.name = childNode.children.filter((n: SyntaxNode) => n.type === 'identifier').shift()?.text; | ||
|
|
||
| childNode | ||
| .children | ||
| .filter((n: SyntaxNode) => ['parameter_list', 'parameter_declaration'].includes(n.type)) | ||
| .map((n: SyntaxNode) => n.children.filter((cn: SyntaxNode) => cn.type === 'parameter_declaration')) | ||
| .reduce((items: SyntaxNode[], curr: SyntaxNode[]) => [...items, ...curr], []) | ||
| .forEach((n: SyntaxNode) => { | ||
| const param: Record<string, any> = { name: null, type: null }; | ||
|
|
||
| n.children.forEach((cn: SyntaxNode) => { | ||
| if (['primitive_type', 'type_identifier'].includes(cn.type)) { | ||
| param.type = cn.text; | ||
| } | ||
|
|
||
| if (cn.type === 'pointer_declarator') { | ||
| param.name = cn.children.filter((cn: SyntaxNode) => cn.type === 'identifier').shift()?.text; | ||
| } | ||
|
|
||
| if (cn.type === 'identifier') { | ||
| param.name = cn.text; | ||
| } | ||
| }) | ||
|
|
||
| this.result.parameters.push(param); | ||
| }) | ||
| break; | ||
| } | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| private parseStruct(node: SyntaxNode): void { | ||
| node.children.forEach((childNode: SyntaxNode) => { | ||
| switch (childNode.type) { | ||
| case 'type_identifier': { | ||
| this.result.name = childNode.text; | ||
| } | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| private parseFieldDeclaration(node: SyntaxNode) { | ||
| node.children.forEach((childNode: SyntaxNode) => { | ||
| switch (childNode.type) { | ||
| case 'field_identifier': { | ||
| this.result.name = childNode.text; | ||
| } | ||
| } | ||
| }); | ||
| } | ||
| } |
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